施工技术 2015年1月下 50 CONSTRUCTION TECHNOLOGY 第44卷第2期 D0I:10.7672/sgjs2015020050 鄂尔多斯游泳馆钢结构施工期间温度作用影响分析 陈君，王留成，邢遵胜，叶翔，胡建华，孙莉丽 (浙江精工钢结构集团有限公司，浙江绍兴312030) [摘要]鄂尔多斯游泳馆在钢结构施工期间，昼夜温差较大，导致钢结构产生一定的伸缩变形.由于混凝土从浇筑 到形成设计强度需要一定的养护周期，在这个过程中，混凝土尚未达到设计强度；钢结构在温度作用下产生的伸缩 变形会对钢结构端部尚未黏结成型的混凝土造成不利的影响.以鄂尔多斯游泳馆为背景，简要介绍整个结构体系 以及钢结构施工方法；重点针对温度作用的问题，利用有限元软件进行建模分析，根据分析结果提出合理的解决 办法. [关键词]体育馆；钢结构；混凝土；温度作用；有限元分析 [中图分类号]TU758 [文献标识码]A [文章编号]1002-8498(2015)02-0050-04 Temperature Influence Analysis During Steel Structures Construction of Erdos Swimming Gymnasium Chen Jun Wang Liucheng Xing Zunsheng Ye Xiang Hu Jianhua Sun Lili Zhejiang Jinggong Steel Building Group Co. Ltd.Shaoxing Zhejiang 312030 China) Abstract:During the steel structure construction of Erdos Swimming Gymnasium due to the temperature difference between day and night the structure will produce certain deformation.Concrete forming design strength need a period of time in this process concrete has not yet reached the design strength. Deformation of steel structure ponents under the effect of temperature will cause certain influence to the new concrete.This paper based on the Erdos Swimming Gymnasium as a background the whole structure and steel structure construction method was introduced briefly.Focusing on the above problems by using the finite element software this paper analyzes the influence of temperature on concrete and the reasonable solution methods according to the results of the analysis are put forward. Key words:gymnasiums;steel ...

2010年3月 施工技术 第39卷第3期 CONSTRUCTION TECHNOLOGY 17 贵阳奥体中心地下车库跳仓法施工技术 黄道军，万杨2，宣兆云 (1.中建三局第一建设工程有限贵任公司西部公司，贵州贵阳550002； 2.贵阳金阳建设投资（集团）有服公司，贵州贵阳550023) [摘要]贵阳奥体中心地下车库长170.4m 宽67.8m 属于大体积混凝土工程.果用跳仓法施工，将混凝土结构划 分为2个大区，12个分仓区域.施工前，通过计算确定了合理的分仓间距；通过原材料控制，确定了最终的配合比. 施工过程中，采用合理的施工流程，控制分仓混凝土的浇筑时间，果取正确的分仓缝处理措施及混凝土浇筑和养护 措施，顺利地完成了混凝土施工. [关键询]贵阳奥体中心；车库；大体积混凝土；跳仓法；施工技术 [中图分类号]TU755.6 [文献标识码]A[文章编号]1002-8498(2010)03-0017-02 Concreting Sequence Method Construction Technology of Underground Garage in Guiyang Olympic Sport Center Huang Daojun' Wan Yang Xuan Zhaoyun' (1.The West Company The First Construction Engineering Limited Company of China Construction Third Engineering Bureau Guiyang Guizhou 550002 China; 2.Guiyang Jinyang Construction Investment Group)Co.Ltd.Guiyang Guizhou 550023 China) Abstract:The underground garage in Guiyang Olympic Sport Center is 170.4m length and 67.8m width which is mass concrete engineering.Concreting sequence method is used for construction of the underground garage which need divide the mass concrete into two large zones and six little zones for each large zone.Before construction the rational zone distance is determined by calculation and the final mix proportion is determined by controlling raw materials.During construction the mass concrete construction is pleted successfully by adopting a series of measures such as selecting reasonable construction sequence controlling concrete pouring time of each zone adopting correct treatment measures for zone joint an...

施工技术 2017年4月上 42 CONSTRUCTION TECHNOLOGY 第46卷第7期 D01:10.7672/sgjs2017070042 荷载条件下钢柱局部截面减小改造施工技术 熊剑 (中铁城建集团第一工程有限公司，山西太原030024) [摘要]某厂房上柱局部截面减小改造工程中，针对柱带荷载条件下改造、高空施工难、场地条件有限等施工难点， 对施工工序、工艺要点及施工质量标准等关键技术进行分析，通过优化施工方案、完善改造工艺流程、标准化焊接 和气割操作方法等措施，保证了施工进度、施工质量及成本控制. [关键词]钢结构；柱：加固改造；变形；焊接 [中图分类号]TU746.3 [文献标识码]A [文章编号]1002-8498(2017)07-0042-04 Construction of Reduction Modification of Local Section of Steel Columns on Loading Condition XIONG Jian (The Ist Engineering Co. Lid.of China Railweay Urban Construction Group Taiyuan Shanxi 030024 China) Abstract:A workshop steel columns'local section needs to be decreased for modification.Aiming at the difficulties such as columns working with loads welding high above ground field limit construction process key techniques and construction quality standards are analyzed.Measures are taken by optimizing construction scheme improving the process the standardizing of welding and cutting operation methods to ensure the construction schedule quality and cost control. Key words:steel structures;columns;strengthening and reconstruction;deformation;welding 1工程概况 180.000 某厂房总建筑面积14580m2 檐口高19.6m 柱 G- 000 距7.5m 跨度27m 上柱材质为Q345B钢，H600× E E 300×10×16.厂房主体结构由25门式钢架组 图1厂房改造部分结构平面 成，每门架由5个联跨组成，①~G轴为中间跨 Fig.I Modification structure plan of workshop (见图1).厂房投人生产后，业主更换了原设计桁 车，新桁车虽能进行生产，但“游动”范围超出了限 定范围，刚蹭到钢柱（见图2）.正常情况下桁车沿 2 桁车桁车 间隙a 间隙b 轨道行驶时，轨道与车轮间的间隙，a>d f;间隙b> 间隙c 间隙d间隙e 间隙 e c 桁车行驶时会在垂直于运行的方向上有“游 动”，之后发生滑动，对钢柱和轨道产生巨大的水平 下柱 下柱 力（即剪力），存在严重的安全隐患. 若桁车向左偏移别蹭到钢柱 ...

2014年10月上 施工技术 第43卷第19期 CONSTRUCTION TECHNOLOGY 73 D0I:10.7672/5js2014190073 管桩复合地基桩土承载力发挥度研究* 肖成安，韩小雷2，王乐斌3，金俊良1 (1.湖南华雁建设有限公司，湖南衡阳421001；2.华南理工大学土木与交通学院， 广东广州510640；3.中交四航工程研究院有限公司，广东广州510230) [摘要]在高层建筑单桩复合地基原位载荷试验的基础上，深入地分析了加载过程中桩土应力比、荷载分担比及承 载力的发挥情况.结果表明，当地基承载力较大时设置1mm厚的褥垫层是可行的，能有效地发挥土的承载潜 力，否则垫层厚度需要>10mm.而且桩间土的承载力发挥先于桩，在桩屈服前桩土应力比n随着荷载的增加而 增加，最后相对稳定，特征值荷载时应力比平均为19.33.由于桩的挤土、围箍效应等使土的承载能力得到很大 提高，随着荷载增加其效果更明显.在特征值荷载时，柱土的承载能力发挥系数平均值分别为0.72 1.78，极限状 态时分别为1.62 2.96. [关键词]地基：管桩复合地基；试验；承载力；桩土应力比 [中图分类号]TU753.3 [文献标识码]A [文章编号]1002-8498(2014)19-0073-05 Study on the Bearing Capacity Effect Degree of Pile and Soil in Pipe Pile Composite Foundation Xiao Cheng'an' Han Xiaolei Wang Lebin' Jin Junliang (1.Hu'nan Huayan Construction Co.Ltd.Hengyang Hu'nan 421001 China;2.School of Cizil Engineering and Transportation South China University of Technology Guangzhou Guangdong 510640 China; 3.CCCC Fourth Harbor Engineering Institute Co. Lid.Guangzhou Guangdong 510230 China) Abstract:The in-situ loading tests were carried out.According to the results the pile-soil stress ratio load sharing ratio and exerting degree of bearing capacity were deeply analyzed.The results show that the cushion thickness can be 100mm but the bearing capacity of soil can't be exerted if cushion is not set. The pile's working delay and the pile-soil stress ratio n increases along with the increase of load before the pile yield and bee relatively stable finally the average value of stress ratio is 19.33 in the worki...

2016年8月上 施工技术 第45卷第15期 CONSTRUCTION TECHNOLOGY 109 D0I:10.7672/8js2016150109 第四系松散土层强夯施工试验研究 肖洋1，柳天杰2，李证吉1 3 (1.湖南城建职业技术学院，湖南谭411101；2.河南工业职业拉术学院建工程系，河南南阳473000； 3.中建四局第五建工程有限公司，贵州贵阳550003) [摘委]以江西地区某工程第四系松散土展的地基强夯处理为背墨，对张夯施工中沉量、深展土展水平位移、孔 隙水压力及地下水等情况进行了监测并通过室内土工试验、平板荷我试及标准入试对谈地基的强夯处理进 行了检测.结果毒明：该工程地是采用强夯处理后，加固故果明显，地基载力大幅提高. [关键词]地基；强；试验；监测；承载力 [中图分类号]TU472.1[交故标识码]A[交章编号]1002-8498(2016)15-0109-04 The Quaternary Loose Soil Dynamic Compaction Construction Testing Xiao Yang' Liu Tianjie? Li Zhengji.3 (1.Hu'nan Urban Construction College Xiangtan Hu'nan 411101 China;2.Department of Architecture and Civil Engineering He'nan Polytechnic Institute Nanyang He'nan 473000 China; 3.CCFED the Fifth Construction Engineering Co. Lad.Guiyang Guizhou 550003 China) Abstract:Taking the dynamic paction treatment of quaternary loose soil of a project in Jiangxi area as the background the paction settlement horizontal displacement of deep soil pore water pressure and groundwater were monitored and through indoor soil test plate loading test and standard penetration test on the foundation the dynamic paction treatment were detected.The results show that after it is treated by dynamic paction the effect is obvious and the bearing capacity of foundation is greatly improved. Key words:foundations;dynamic paction;testing;monitoring;bearing capacity 1工程概况 3000 2500kNm.第4遍满夯，单点夯击能为 江西某电厂厂址地处江西省抚州市临川区和1000kNm.第1 2遍点夯夯点按4m×8m跳点 南城县境内青泥镇周家村，建设场地以丘陵尚地为夯，第112~15击，第2遮10~12击，第3遍按 主，地形起伏不大，然标高...

2013年7月上 施工技术 第42卷第13期 CONSTRUCTION TECHNOLOGY 89 D0I:10.7672/sgjs2013130089 盾构隧道通用管片排版设计与纠偏研究* 张文萃，穆世旭2，李家涛1，胡长明1，汪凯2 (1.西安建筑科技大学土木工程学院，陕西西安710055； 2.中铁一局集团城市轨道交通工程有限公司，陕西西安710054) [摘要]通用楔形管片作为一种较先进的隧道衬砌形式，在盾构法施工中能够较好地控制隧道掘进轴线和管片成 环质量.以宁波地铁2号线机场站一栎社新村站区间工程为背景，结合现场实际施工经验，针对通用管片的特点， 对通用管片排版设计进行了研究.对通用管片在不同点位拼装时上、下、左、右各方向的超差和轴线偏差进行了计 算，分析了通用管片排版设计时应当考虑的影响因素.研究结果表明，按照设计的排版方案对通用管片进行成组 使用，可以较好地拟合直线段、圆曲线段以及缓和曲线段的设计路线，在管片排版中应重点考虑线路拟合、盾构姿 态、油缸行程差、盾尾间隙等因素. [关键词]隧道工程；盾构；通用楔形管片；排版设计；纠偏 [中图分类号]TU94 [文献标识码]A [文章编号]1002-8498(2013)13-0089-04 Research on Layout Design and Deviation Correction of the General Segment in Shield Tunnels Zhang Wencui' Mu Shixu2 Li Jiatao' Hu Changming' Wang Kai2 (1.School of Civil Engineering Xi'an University of Architecture and Technology Xi'an Shaanxi 710055 China; 2.Urban Rail Transit Engineering Co.Lid.of China Railway First Group Co. Ltd.Xi'an Shaanxi 710054 China) Abstract:General wedge-shaped segment as a more advanced form of tunnel lining can control the axis of tunnel boring and the quality of segment into the ring better in shield construction.To a range of projects of Ningbo subway line 2 as the background the layout design of the general segment was studied.Meanwhile this paper analyzed the influencing factors need to be considered in the layout design of the general segment bined.with actual construction experience and the characteristics of the general segment.The results show that a group of general segment used according to the design of the l...

施工技术 2012年1月上 84 CONSTRUCTION TECHNOLOGY 第41卷第356期 盾构近距离下穿对已运营隧道的变形分析 丁传松1，杨兴富2 (1.上海辉固岩土工程技术有限公司，上海200125；2.中海发展（上海）有限公司，上海200023) [摘要]以西藏南路隧道下穿轨道交通8号线工程实例，分析了隧道施工过程中运营隧道的变形情况.根据实测 数据对新建隧道下穿运营隧道时运营隧道的变形特点进行了分析，对运营隧道的变形性状进行了总结，给出了其 中的变形规律.盾构隧道近距离下穿对运营隧道影响明显，隧道变形与盾构类型、地质条件、注浆施工控制及线路 姿态调整等紧密相关. [关键词]隧道工程；盾构；运营隧道；监测；变形；注浆 [中图分类号]U459.2[文献标识码]A [文章编号]1002-8498(2012)01-0084-03 Deformation Analysis of Shield Tunnel Undercrossing Nearby Operation Tunnels Ding Chuansong' Yang Xingfu? (1.Shanghai Fugro Geotechnique Co.Ltd.Shanghai 200125 China; 2.Shanghai Zhonghai Development Co.Ltd.Shanghai 200023 China) Abstract:Based on project of South Xizang Road tunnel in Shanghai undercrossing Metro Line 8 authors analyze the deformation characteristics of operating tunnel for unedrcrossing construction according to monitoring summarize deformation behavior and deformation laws.The effect of undercrossing nearby is obvious and deformation of tunnel is closely related to shield types geological conditions grouting control and posture adjustment. Key words:tunnels;shields;running tunnel;monitoring;deformation;grouting 在大规模的城市地下轨道交通建设中，新建隧 类型为泥水加压平衡盾构. 道不可避免下穿越已运营地铁隧道，在上海等软土 地区已进行了很多相关方面的研究，尽管上海地 区已有多条地铁线路、公路隧道成功下穿越运营隧 8号线上行线 西藏南路隧道东线 藏南路隧道西线 道，但下穿过程中运营隧道的变形性状仍需理论分析 8号线下行 及经验总结.本文根据实测数据对新建隧道下穿 越运营隧道时运营隧道的变形特点进行了分析，给出 了其中的变形规律，为同类工程提供经验. 图1西藏南路隧道下穿8号线示意 1工程概况 Fig.1 South Xizang Road tunnel 上海西藏南路隧道分为西线隧道和东线隧道， undercrossing Line 8 两线间净宽12.06m 隧道管片外径11.36m 内径 2工程地质条件 10.36m 环宽1.5m.盾构自浦东工作井出洞后分 穿越段8号...

施工技术 2012年10月上 84 CONSTRUCTION TECHNOLOGY 第41卷第374期 盾构机零部件再生技术研究 朱英伟，黄常波，张峰，张洪涛 (中建交通建设集团有限公司，北京100161) [摘要]针对盾构施工中刀具、刀盘耐磨板、液压油管等部件的磨损现象和磨损程度进行分析，通过合理论证制定 回收再利用的实施方案，进行经济对比分析后，对其进行有效地修复、提取和回收.通过借助各种先进的现代加工 工艺、设备以及改进措施等手段制造出新产品或恢复其功能，使其满足使用功能，从而可以达到节约成本、藏少浪 费的目的. [关键词]盾构；回收；再利用；耐磨板；液压油管 [中图分类号]TU603 [文献标识码]A [文章编号]1002-8498(2012)19-0084-03 Research on Recycling Technology of Shield Components Zhu Yingwei Huang Changbo Zhang Feng Zhang Hongtao (China Construction Communications Engineering Group Co. Ltd.Beijing 100161 China) Abstract:According to the analysis on wearing phenomenon of cutters resistant plates and hydraulic tubes in shield construction recycling schemes were made after proper study.These poents were effectively reparied extracted or recycled on the basis of economic contrast analysis.By means of advanced facilities and manufacturing technologies these ponents can be repaired to restore their functions or recycled for the manufacturing of new products thus to save cost and reduce waste. Key words:shields;recycling;reuse;resistant plate;hydraulic tube 在城市地下工程不断发展的今天，采用盾构法 盾构机刀盘工作时所处的环境比较恶劣，受力 施工进行隧道建设越来越广泛，它具有隧道结构施比较复杂，所以会经常出现磨损现象，尤其是盾构 工质量高、防水性能好、适用地层广和对周围环境机刀盘外周对于整个刀盘来讲极易磨损，为此盾构 影响小、安全性高、施工效率高等优点.盾构机的 机生产厂家也会着重考虑这方面的加强措施，焊接 零部件种类繁多、数量较大，涉及范围较广，如机、大量的耐磨材料如堆焊耐磨纹、焊接耐磨板或者增 电、液、气等多个学科，而且还存在零部件采购价格 加耐磨合金等，但这些措施仅满足一个区间的施工 昂贵，易损易耗品使用量较大、更换频率较高等特 需要，之后施工单位还要进行耐磨处理.常见的刀 点，这就决定了必须加强对盾构机零部件的使用和 盘耐磨板磨损情况如下. 管理工作.然而国内多数施工单位一般会将施工 1)耐磨板表面的合金全部脱落，并且耐磨板本 中产生的损坏零部件直接进行报废处理，造...

施工技术 2016年11月上 124 CONSTRUCTION TECHNOLOGY 第45卷第21期 D0:10.7672/sgj52016210124 盾构斜井管片接缝防水设计及防水性能试验研究* 李铁成 (中国铁建大桥工程局集团有限公司，天津300300) [摘要]盾构斜井防水不仅关系到斜井使用功能的正常发挥，而且关系到斜井使用期限的长短.以神华新街台格 庙矿区斜井工程的实施为工程背景，介绍了盾构斜井管片接缝的防水设计，并设计制作了T形模拟耐水压试验装 置，进行了盾构斜井管片接缝防水的模拟试验研究.通过试验验证了本项目中的弹性密封垫防水性能满足设计 要求. [关键词]盾构；斜井；管片接缝；防水；试验研究 [中图分类号]U455.43 [文献标识码]A [文章编号]1002-8498(2016)21-0124-03 Waterproof Design and Experimental Research on Inclined Shaft Segment Joint in Shield Li Tiecheng China Railway Construction Bridge Engineering Bureau Group Co.Ld.Tianjin 300300 China) Abstract:Waterproof is very important in the shield shaft.It is not only related to the normal use of the shaft but also to the use period of it.In this paper taking a inclined shaft engineering for example the waterproof design of the segment joint was introduced.Meanwhile the experimental device was designed and the experimental research was done of inclined shaft segment joint in shield.The test verifies that the elastic gasket waterproof performance can meet design requirement. Key words:shielding;inclined shaft;segment joints;waterproofing;testing 0引言 点，确保斜井整体防水效果.本文以该工程的实施 神华新街台格庙矿区斜井主井试验示范工程， 为工程背景，介绍了盾构斜井管片接缝的防水设 首次将盾构施工技术运用到连续下坡、长距离、大 计，并设计制作了T形模拟耐水压试验装置，进行 埋深煤矿斜井建设，其成功的实施将开创煤矿斜井 了盾构斜井管片接缝防水的模拟试验研究. 建设新模式，填补我国煤矿斜井盾构施工技术的空 1管片接缝防水设计 白，为快速、高效建设矿井提供技术支撑[.该工 管片接缝防水设计是盾构斜井正常使用的重 程埋深大、地下水文状况复杂，若出现渗漏水，将严 要保障，解决方法主要是使用耐久性和止水性严格 重影响斜井质量及斜井运营期间的使用安全. 的弹性密封垫.弹性密封垫是在管片接缝压密后， 盾构斜井渗漏水的位置通常是管片的接缝、管 靠密封垫之间的接触应力止水.弹性密封垫设计 片自身小裂缝、注浆孔和手孔等，其中尤以管片接...

2016年11月下 施工技术 第45卷第22期 CONSTRUCTION TECHNOLOGY 25 D0I:10.7672/sjs2016220025 盾构刀具磨损速率预测研究* 杨俊哲，邱承有2 (1.神华神东煤炭集团有限责任公司，陕西榆林719315；2.中铁十一局集团有限公司，湖北武汉430061) [摘要]在盾构掘进系统中，因为盾构刀具磨损速率直接关系到施工工期的长短，而施工工期是评价工程项目综合 经济效益最重要的指标.盾构刀具磨损速率的误差过大会导致施工企业对施工周期的错误预估，加大施工企业的 经营成本，严重时会导致整个盾构系统故障，因此，盾构刀具磨损速率是盾构掘进过程中需要监测的重要参数之 一.针对盾构掘进工艺进行研究，利用盾构掘进系统中的围岩强度、耐磨性、刀盘转矩、刀盘转速等主要运行指标 作为输人变量，盾构刀具磨损速率作为输出变量分别建立模拟退火优化的支持向量机模型(SA-SVM)以及遗传优 化的最小二乘支持向量机模型(GAIS-SVM).用建立的两种人工智能模型对神华神东补连塔煤矿斜井盾构刀具磨 损速率进行预测，通过对比刀具磨损速率预测值与实际值来验证人工智能预测模型的可行性与精确度. [关键词]盾构；刀具磨损速率；人工智能模型；预测 [中图分类号]TD26 [文献标识码]A[文章编号]1002-8498(2016)22-0025-06 Prediction of Cutting Tool Wear Rate Yang Junzhe' Qiu Chengyou? (1.Shenhua Shendong Coal Refco Group Iad.Yulin Shaanxi 719315 China; 2.China Railway No.11 Construction Bureau Group Co.Ltd.Wuhan Hubei 430061 China) Abstract:In the shield driving system because the shield tool wear rate is directly related to the length of the construction period and the construction period is the most important index to evaluate the prehensive economic benefits of the project.shield cutter wear rate of error over the general assembly in construction enterprises to the construction cycle error estimates increase the operating costs of construction enterprises serious when can cause the failure of the entire shield so the shield cutter wear rate is one of the important parameters of shield construction process need to be monitored.The shield tunneling technology research using shield boring system of rock strength we...

2011年1月 施工技术 第40卷第2期 CONSTRUCTION TECHNOLOGY 85 环形预应力盾构管片摩阻损失测试与研究 刘鹏，王贯明，杨思忠2，杨雄为3 (1.北京市市政工程研究院，北京100037：2.北京市拉路桥建材集团有限公司，北京100176： 3.柳州维机械份有限公司，广西柳州545005) [描盈]子某国内预应力工程，首次对原型预应力角构管片结构环衬进行摩阻捐失测试.采用夹停甲猫结含 的环挂术，对预应方管片环施加颗应力，以满足其承受内水压和外戴的要求，较准确地款得了环形预应力盾构 管摩和损失.同时初步确定摩阻系，并对试数据进行处理和分析.德果表明，测试结果后设计理施值比较 响含，可以满足实际试验要求. [关键词]预应力工程：预应力筋：无铜我：摩阳捐测试 [中分类]TU378 [献识移]A [支章编将]1002-8498(2011)02-0085-03 Test and Research on Friction Loss of Circumferential Prestressed Precast Concrete Segments Liu Peng' Wang Guanming' Yang Sizhong㎡，Yang Xiongwei (1.Beijing Municipal Engineering Research Institute Beijing 100037 China: 2.Beijing Municipal Road Bridge Building Material Group Co.Lid.Beijing 100176 China: 3.OVM Machinery Co.Ld.Liuzhou Guangxi 545005 China) Abstract:Taking some prestress engineering as example it is the first time to test the friction loss of full- scale circumferential prestressed precast concrete segment lining in China.The prestressed precast concrete segment lining is prestressed by using the annular anchorage technique of anchor blade bining with P-anchor in order to withstand the internal water pressure and external load.It is the first time to achieve the friction loss of circumferential prestressed precast concrete segment lining more accurately and the friction coefficient is initially determined.Besides the test data are treated and analyzed.The results show that test data accord with theoretical data which can satisfy the requirements of actual test. Key words:pr...

施工技术 2011年4月上 54 CONSTRUCTION TECHNOLOGY 第40卷第338期 灌注桩超声波衰减成像技术研究 董清华，袁国清，彭土有2，林逸标3 (1.五邑大学土木建装学院，广东江门529020；2.成都理工大学信息工程学院，四川成都610059； 3.江门市交通工程质量监督站，广东江门529000) [摘要]介绍了Landweber迭代算法衰减成像原理.采用加速的Landweber选代算法对一带有空洞缺陷体的混凝 土灌注柱模型进行了超声波衰减图像重建，所得图像清晰显示出空洞的位置与形状，并与速度重建图像相比较，两 者吻合较好.对某桥梁工程灌注桩进行了衰减图像重建与速度图像重建，两者均清楚显示出缺陷体的部位，经钻 孔抽芯验证，其结果证明了该衰减成像方法的有效性. [关键词]Landweber:袁减成像；超声波：灌注桩 [中图分类号]TU473.1 [文献标识码]A [文章编号]1002-8498(2011)07-0054-03 Research on Technology of Ultrasonic Attenuation Tomography for Cast-in-place Piles Dong Qinghua' Yuan Guoqing' Peng Tuyou? Lin Yibiao (1.School of Cisil Engineering and Architecture Wuyi University Jiangmen Guangdong 529020 China; 2.College of Information Engineering Chengdu University of Technology Chengdu Sichuan 610059 China; 3.Jiangmen Traffic Engineering Quality Administer Station Jiangmen Guangdong 529000 China) Abstract:Principle of Landweber iterative algorithm attenuation tomography is introduced.Accelerated Landweber iteration algorithm is used to calculate ultrasonic attenuation tomography for a cast-in-place pile model with a hole defect.The result clearly shows the position and shape of the hole and agrees well with the velocity image.Furthermore the algorithm is used on the attenuation image reconstruction for a cast-in-place pile of a bridge engineering.The reconstruction image and velocity image both clearly show the place of defect.The results of core-drilling verify the effectiveness of the algorithm. Key words:Landweber;attenuation t...

施工技术 2016年4月上 66 CONSTRUCTION TECHNOLOGY 第45卷第7期 D0I:10.7672/8js2016070066 灌注桩后注浆对沉降影响的数值分析* 郑楷，赵大军2，隗延龙3，毕岩4 (1.吉林建筑大学土木工程学院，吉林长春130118；2.吉林大学建设工程学院，吉林长春130022； 3.中煤科工集团西安研究院有限公司，陕西西安710077；4.中国新兴建设开发总公司，北京100039) [摘要]分别对北京和西安2个不同的超高层综合楼项目及高层住宅项目灌注桩基进行了压浆前和压浆后桩基沉 降量的有限元数值模拟，并结合实际的单桩静载受压试验得出的桩基沉降量进行分析对比，得出压浆后灌注桩数 值模拟沉降量与实际沉降量之间的误差率. [关键词]桩基础；高层建筑：灌注桩；后压浆；沉降；数值模拟 [中图分类号]TU473.1 [文献标识码]A [文章编号]1002-8498(2016)07-0066-04 Numerical Analysis of the Influence of Post Grouting for Cast-in-situ Piles Zheng Kai Zhao Dajun2 Wei Yanlong Bi Yan (1.School of Ciril Engineering Jilin Jianzhu University Changchun Jilin 130118 China; 2.College of Construction Engineering Jilin University Changchun Jilin 130022 China; 3.CCTEG Xi'an Research Institute Xi'an Shaanxi 710077 China; 4.China Xinxing Construction and Derelopment General Co.Ltd.Beijing 100039 China) Abstract:Based on two different high-rise buildings in Beijing and Xi’an this paper made finite numerical simulation on pile foundation settlement before and after grouting.Combining with the settlement of single pile static load test this paper made analysis and obtained error rate between actual settlement and numerical simulation results. Key words:piles;tall buildings;bored piles;post grouting;settlement;simulations 0引言 发，以便于更好应用于实际工程. 随着国民经济的飞速增长，一方面二、三线城 灌注桩后压浆技术是指在灌注桩灌注混凝土 市陆续崛起，国家基本建设投资的规模和金额不断 之前预先在桩身周围或桩底埋置压浆管，当桩身达 增加，各类高层、超高层建筑的兴建已成为现代化 到预定强度之后，把起到交接固化作用的浆液通过 都市的重要标志.另一方面，城市的快速发展也使 压浆管压入桩身周围土体或压入桩端持力层土层 建筑工程施工面临一些新的困难.对工程建设场 中，使桩...

施工技术 2013年11月下 98 CONSTRUCTION TECHNOLOGY 第42卷第22期 D0I:10.7672/8gjs2013220098 滑模拖带技术在筒仓工程中的应用* 赵少伟，张冬，郭蓉，夏立春 (河北工业大学土木工程学院，天津300401) [摘要]目前，广泛应用于大直径简仓类建筑的施工顺序为先对仓壁进行施工，然后安装仓顶，存在工序复杂、成本 高等问题.而国内研发的滑模拖带施工技术可以解决这些问题，但至今对该技术的系统研究还未进行，应用时会 比较危险.对此，结合实际工程对该种施工方法的设计、工艺和施工过程中的监测做了详细的阐述，从理论和实践 上保证了该项技术能成功地应用到大直径筒仓类结构中. [关键词]安装；滑模拖带；筒仓；网壳；监测 [中图分类号]TU378 [文献标识码]A [文章编号]1002-8498(2013)22-0098-04 Application of Sliding Towing Techniques in Silo Project Zhao Shaowei Zhang Dong Guo Rong Xia Lichun School of Civil Engineering Hebei University of Technology Tianjin 300401 China) Abstract:At present the construction sequence of the large diameter silos which are widely used in cement coal grain modern logistics and other industries is constructing the warehouse wall first and then installing the warehouse roof.There are some problems such as time-consuming cumbersome costly.While the domestic study on sliding towing space steel structure construction technology can solve these problems but so far there has not been the systemic research of the technology the application would be more dangerous.So this paper bines practical engineering to elaborate such type of construction method's design the monitoring process and the construction process in detail to ensure the technology can be successfully applied to large diameter silos class structure from the theory and practice. Key words:installation;sliding towing;silos;shells;monitoring 0引言 料库项目对该种施工工艺进行介绍. 20世纪初，随着施工综合管理水平逐步提高及1工程概况 集中控制设备和液压滑...

施工技术 2010年4月 40 CONSTRUCTION TECHNOLOGY 第39卷第4期 滑模技术在邯钢新区漩流井沉井工程的应用 岳文彦1，刘广业，胡长明2 (1.上海宝冶建设有限公司，上海200941；2.西安建筑科技大学土木工程学院，陕西西安710055) [摘要]邯钢新区流井平面为一双圆筒形水井，施工时主要考虑外简施工，设计为沉井结构.鉴于滑模技术在该 沉井施工中的技术难点，给出了滑模系统组成及千斤顶、门架等的应用.介绍了滑模技术与沉井工艺的配合和施 工过程控制措施，指出采用滑模技术进行并壁接长时，应注意水平构件和井壁间的连接问题. [关键词]沉井；滑模技术；控制措施 [中图分类号]TU755.2 [文献标识码]A[文章编号]1002-8498(2010)04-0040-03 Sliding Formwork Application in Caisson Engineering of Han'gang Cyclone Well Yue Wenyan' Liu Guangye' Hu Changming2 (1.Shanghai Baoye Construction Co.Lid.Shanghai 200941 China; 2.School of Civil Engineering Xi'an Unisersity of Architecture and Technology Xi'an Shaanxi 710055 China) Abstract:Some Han'gang cyclone well is a bi-cylinder structure and outer cylinder construction is considered mainly which is designed as caisson structure.According to the difficulties of sliding formwork technology used in caisson construction the position of sliding formwork system and application of jack and gantry are indicated.Furthermore the bining of sliding formwork and caisson technologies and the control measures during construction are introduced which demonstrate that the connection of horizontal ponents and sidewall should be paid more attention during jointing in length. Key words:caisson;sliding formwork technology;control measure 沉井法施工是先在地表制作一个井筒状的结构物产生流砂，碎石层和黏土岩层土层很硬.地质条件相 (沉井)，然后在井壁的围护下通过从井内不断挖土，对比较复杂. 使沉井在自重作用下逐渐下沉，达到预定设计标高后， 综合考虑本工程的平面布置、结构特点、地质条件 再进行封底，构筑内部结构的一种施工工艺.小型沉等因素，先开挖掉杂填土、素填土等不均匀土层，在一 井一般是在地表制作完毕后再下沉；大型沉井一般是定深度基坑内进行沉井...

施工技术 2014年4月上 118 CONSTRUCTION TECHNOLOGY 第43卷第7期 D0I:10.7672/8gjs2014070118 滑升模板施工技术在信标塔工程中的应用 谢夫海 (中国矿业大学（北京）力学与建筑工程学院，北京100083) [摘要]结合某信标塔工程实例，针对工程的结构特点，介绍了信标塔滑模施工的技术控制要点.从滑模系统的安 装、钢筋混凝土施工、塔身混凝土养护、挑檐钢筋钢结构预埋件的处理以及施工注意事项等方面对滑模施工进行了 详细介绍. [关键词]模板；滑模；信标塔；施工技术 [中图分类号]TU755.2 [文献标识码]A [文章编号]1002-8498(2014)07-0118-04 Application of Sliding Formwork Construction Technology in Beacon Tower Engineering Xie Fuhai (School of Mechanics Civil Engineering China University of Mining and Technology Beijing Beijing 100083 China) Abstract:Based on some beacon tower engineering practice according to the structure characteristics of the engineering this paper introduced technology control points of sliding formwork construction.The sliding formwork construction technology were introduced in detail from sliding formwork system installation reinforced concrete construction tower concrete curing embedded parts treatment and attentions. Key words:formworks;sliding formwork;beacon tower;construction 1工程概况 试验. 北七家沙子营全向信标/测距仪台搬迁工程中 3)本工程进行滑模施工时涉及到幕墙、脚手 的全向信标台主体结构是钢筋混凝土塔结构，塔高 架、钢结构等多工种的交叉配合，施工组织要求高、 70.000m 由塔座、塔身、塔楼组成.塔身为圆形中 协调难度大.项目部应成立相应协调机构，理顺协 心筒结构，内有电梯井及楼梯间，中心筒内径为 调程序，保证各工种的钢筋或连接件的预埋符合设 7.2m 壁厚450mm 内直行墙厚为250mm 如图1所 计及施工要求. 示.中心筒及内墙采用滑模工艺施工，滑模高度为 3滑模系统主要施工装置 4.950~58.700m. 3.1液压提升系统 2主要施工难点及对策 1)滑模开字架平面布置提升架是滑模装置 1)本工程滑模施工期间正逢雨期施工，在混凝 的主要承力构件.本工程采用的提升架为双横梁 土浇筑前要关注天气情况，合理安排施工时间；滑 的“开”字形架.横梁由[10，[12制作，立柱用槽 模每次提升高度减半，混凝土采用凝结较快的配 钢、角钢、钢板焊接制成.提升架的2根立柱保持平 合比. 行，并与横梁连接成90°.滑模开字架按塔身周圈 2)滑模施工期间正值夏季气温较高的时...

2014年8月下 施工技术 第43卷第16期 CONSTRUCTION TECHNOLOGY 63 D0I:10.7672/5j52014160063 滑-翻结合液压模板在高墩施工中的应用 蔡新宁，李怀友 (中交一公局第六工程有限公司，天津300451) [摘要]目前山区桥梁较多，桥墩较高，最高墩高达195m.高墩施工较成熟工艺主要有翻模爬模、滑模，其中翻模 施工安全危险性高；爬模施工对混凝土初凝控制要求高，预埋件易于破坏新浇筑混凝土；滑模施工对混凝土要求较 高、外观控制困难，一般不选择使用.在天池特大桥高墩施工中，通过设计、不断改进，将滑模及翻模优点结合起 来，形成高墩液压滑翻结合系统，解决了高墩施工存在的各种问题. [关键词]桥梁工程；模板；液压模板；高墩；应用 [中图分类号]TU755.2 [文献标识码]A [文章编号]1002-8498(2014)16-0063-03 Application of Sliding-turnover Hydraulic Formwork in High Pier Construction Cai Xinning Li Huaiyou No.6 Engineering Co.Lid.of CCCC First Highway Engineering Co.Lid.Tianjin 300451 China) Abstract:At present there are many bridges and high piers in mountain.The highest pier is up to 195m.Some mature high piers construction technologies have turnover formwork climbing formwork and sliding formwork.In these turnover formwork is high-risk for construction safety.And during climbing formwork construction the initial setting time of concrete must be controlled and the embedded parts are easy to destroy the new pouring concrete.The sliding formwork construction has higher requirement for concrete surface and is usually not used.In high pier construction of Tianchi Bridge by detailed design and development sliding-turnover hydraulic formwork bination system is formed by bing with the advantages of sliding formwork and turnover formwork which can solve these problems occurred in high pier construction. Key words:bridges;formwork;hydraulic formwork;piers;application 1以往高墩施工中的缺点 预埋立杆费用大，施工中外观、线...

施工技术 2015年10月下 46 CONSTRUCTION TECHNOLOGY 第44卷第20期 D0I:10.7672/sgjs2015200046 湖州奥体体育场钢屋盖施工关键技术研究* 苏英强，王留成，王强，王超杰，全书敬，刘粟雨 (浙江精工钢结构集团有限公司，浙江绍兴312030) [摘要]湖州奥体体育场屋盖钢结构采用叠合双层开口网壳结构形式.由于建筑造型新颖别致，施工难度大，质量 要求高，为了保证施工的质量和精度，对体育场钢结构施工过程中的关键技术进行了研究，主要包括叠合区4层超 厚网壳安装技术、圆管柱支撑与格构柱支撑架混合组合应用技术、大悬挑复杂空间叠合双层网壳屋盖预起拱技术、 局部叠合异形双层网壳结构合找缝选择、分区分级分步阶梯砂箱卸载技术等关键技术. [关键词]体育场；钢结构；屋盖；双层网壳结构；施工技术 [中图分类号]TU758.1 [文献标识码]A [文章编号]1002-8498(2015)20-0046-04 The Research on Key Construction Technology of Steel Roof Structure for Huzhou Olympic Stadium Su Yingqiang Wang Liucheng Wang Qiang Wang Chaojie Tong Shujing Liu Suyu (Zhejiang Jinggong Steel Building Group)Co.Ltd.Shaoxing Zhejiang 312030 China) Abstract:The steel roof structure for Huzhou Olympic Stadium adopts the structure system of two-layer shell structure.Due to the architectural style is novel and unique difficult construction high quality requirements in order to ensure the quality and accuracy of the construction the key technology construction of stadium was studied during construction such as the overlapping zone four super thick shell installation technology bination application technology of pipe column supporting and lattice column supporting pre arch technology of large cantilevered space plex folding two-layer shell roof closure joint setting of local laminated shaped two-layer reticulated shell structures hierarchical partitioning step by step ladder sandbox unloading technology and so on. Key words:stadiums;steel structures;roofs;two-...

施工技术 2013年4月下 72 CONSTRUCTION TECHNOLOGY 第42卷第8期 D0I:10.7672/sgjs2013080072 海河隧道沉管预制技术* 代敬辉 (中铁十八局集团第五工程有限公司，天津300459) [摘要]海河隧道工程采用沉管法工艺施工，河中沉管分为3节，每节沉管为“两孔三管廊”的矩形箱式结构，沉管 在干坞内预制.主要叙述了沉管预制主要施工技术，介绍了管段起浮层做法、管段的模板设计安装拆除、沉管混凝 土质量控制、端铜壳加工与安装、聚脲防水等技术要点.按照笔者所述工艺，顺利完成了全部沉管沉放、对接作业， 沉管底板、外侧墙、顶板未发现任何渗漏点. [关键词]隧道工程；沉管；预制；防水；施工技术 [中图分类号]U459.5 [文献标识码]A [文章编号]1002-8498(2013)08-0072-04 Technology for Prefabrication of Immersed Tube in Haihe River Tunnels Dai Jinghui (The Fifth Engineering Co.China Railway 18 Bureau Group Co. Ltd.Tianjin 300459 China) Abstract:Haihe River Tunnel project used immersed tube method.The immersed tube was divided into three segments and each segment was a rectangle box-shaped structure with two holes and three galleries. The immersed tubes were fabricated in dry dock.This paper introduces the construction technology for prefabrication of immersed tubes including the fabrication of the tube floating layer design installation and demolition of tube formwork quality control for immersed tube concrete fabrication and installation of end steel case polyurea waterproofing.According to the method described the sinking of all immersed tubes as well as their connections were pleted successfully and no leakage were observed at the bottom lateral walls and roof of the immersed tubes. Key words:tunnels;immersed tube;prefabrication;waterproofing;construction 1工程概况 个关键因素.作为管段沉放对接时GINA止水带压 海河隧道工程是天津市滨海新区中央大道穿缩的导向面，端钢壳的精度直接影响到沉放管段的 越海河的一个重要节点工程，工程路线全长4.2km “轨迹”和姿态，是沉管成功沉放对接的...

2010年7月 施工技术 第39卷第7期 CONSTRUCTION TECHNOLOGY 73 海水源热泵技术在青岛奥帆基地 媒体中心工程中的应用 孙邦君，李丰会 (青建集团股份公司，山东青岛266071) [摘要]青岛奥帆基地媒体中心空调系统采用开式间接利用方式的海水源热泵技术.介绍了这种技术的特点，以 及这种空调系统设计时，海水取、排水点，混凝土沉箱，材料和设备选择时应注意的问题.同时介绍了这种空调系 统施工要点及质量要求.通过3年多的使用，该系统运行稳定，经济效益和社会与环保效益显著. [关键词]空调系统；海水源热泵；开式间接利用方式；施工 [中图分类号]TU832.13 [文献标识码]A [文章编号]1002-8498(2010)07-0073-04 Application of Sea-water-source Heat Pump Technology in Media Center of Qingdao International Sailing Base Project Sun Bangjun Li Fenghui (Qingdao Construction Group Co.Lad.Qingdao Shandong 266071 China) Abstract:The air-condition system in Media Center of Qingdao International sailing base project uses sea- water-source heat pump with openning indirect using style.The authors introduce characteristics of this system.Some attensioned problems are also showed in selection of intake and drainage points of seawater concrete caisson materials and equipments when the air-condition system is designed.And the construction key points and quality requirments are introduced.Through running for three years this air- condition system has been stable working and has good effect of economic social and environment protection. Key words:air-condition system;sea-water-source heat pump;openning indirect using style; construction 海水源热泵是一种节能、环保、可再生的绿色新能海水源热泵技术.通过3年多的空调季节使用，该系 源，是我国调整能源利用结构，发展利用可再生能源策统运行稳定，节能效果明显. 略的重点推广项目之一，具有广泛的推广应用前景. 2海水源热泵技术 但是海水源热泵技术的应用在我国还刚开始，因 海水源热泵技术是利用巨大的海水水体吸收并储 而在设计、施工、调试与运行、保养等方面还存在着诸 存的低位热能资源（包括热量和冷量），并采用热泵原 多垂需解决的问题.结合第29届奥运会青岛国际帆 理，通过少量...