2014年3月上 施工技术 第43卷第5期 CONSTRUCTION TECHNOLOGY 13 D0I:10.7672/5js2014050013 超早强灌浆料耐火性能试验研究* 张晓平1,孙长征12,赵同峰1 3,陈谦1 (1.沈阳建筑大学土木工程学院,辽宁沈阳110168:2.沈阳建筑大学建筑设计研究院,辽宁沈阳110015; 3.辽宁省交通高等专科学校道路与桥梁工程系,辽宁沈阳110122) [摘要]通过研究不同比例铝酸盐水泥与普通硅酸盐水泥的超早强耐火灌浆料在不同温度下燃烧30min后的残余 强度,分析超早强灌浆料的耐高温机理.结果表明,铝酸盐水泥与普通硅酸盐水泥的比例为1:7时,超早强灌浆料 的经济效益好,在1000℃高温燃烧30min后,残留54.7%的抗压强度.超早强灌浆料的残留抗压强度与温度有较 好的拟合关系. [关键词]灌浆料;耐火性能:水泥;测强曲线;试验 [中图分类号]TU528.53 [文献标识码]A [文章编号]1002-8498(2014)05-0013-03 Study on Fire-resistance Performance Test of the Super Early Strength Grouting Material Zhang Xiaoping' Sun Changzheng.2 Zhao Tongfeng.3 Chen Qian' (1.School of Civil Engineering Shenyang Jianzhu Unirersity Shenyang Liaoning 110168 China: 2.Architectural Design Research Institute Shenyang Jianzhu Unitersity Shenyang Liaoning 110015 China; 3.Department of Road and Bridge Liaoning Provincial College of Communications Shenyang Liaoning 110122 China) Abstract:The authors analyzed residual strength of super early strength grouting material at different temperatures after burning 30 minutes with the different proportion of aluminate cement and ordinary portland cement and analyzed high temperature resistance of the super early strength grouting material. The results showed that the proportion of aluminate cement and ordinary portland cement was 1:7 economy benefit of super early strength grouting material was good and residual pressive strength was 54.7%in the1000℃high temperature after burning30 minutes.In addition residual pressi...
[关键词]基础工程;降水;深化设计;施工技术 [中图分类号】TU473 [文献标识码]A [文章编号】1002-8498(2017)07-0076-04 SuperVacuumDewateringTechnologyDetailedDesignand ConstructionControlinDeepFoundationDewatering ZHAO Naizhi²,ZHANG Sujun',CHEN Guifeng (1.School of Civil Engineering,Yangzhou Polytechnic Institute,Yangzhou,Jiangsu 225127,China; 2.School of CivilEngineering,Jiangnan University,Wuxi,Jiangsu 110168,China) Abstract;Based on an excavation in Shanghai Pudong with a large depth,high soil moisture content and plex surroundingenvironmentfoundationexcavation dewatering and seepage numericalanalysiswere conducted to use super vacuum dewatering.This technique increases the precipitation single well inflow funnel and slowed the hydraulic gradient,precipitation enhancement effct is obvious.Rainfall can reduce the number of wells in turn,can significantly reduce the foundation earth excavation,reduced surrounding environment of the foundation excavation dewatering. Using step-down wells operational risk control system,the construction risk is controlled to ensure the smooth progress of the project and have achieved good results. Key words:foundations;dewatering;detailed design; construction 1工程概况 设备落深区基坑开挖深度为28.06m;连廊电梯井区 本项目位于上海浦东新区竹园商贸地块,浦东 域基坑开挖深度为27.10m。
2013年1月下 施工技术 第42卷第2期 CONSTRUCTION TECHNOLOGY 17 超大面积焊接球网架柔性提升技术* 董康,陈海洲2,王玉岭2,谢刚奎2,张其林3 (1.上海飞机制造有限公司,上海200436;2.中国建筑第八工程局有限公司,上海200120; 3.同济大学土木工程学院,上海200092) [摘要]针对中国商飞部装厂房3万m焊接球屋盖的施工,提出了柔性整体提升技术.对柔性整体提升过程进行 了数值模拟和分析,分析了施工提升不同步对结构受力的影响,对实际工程施工过程进行了监测.数值模拟与工 程实践证明了提出的柔性整体提升技术具有充分的安全性和明显的经济性. [关键词]钢结构;网架;提升;数值模拟;监测 [中图分类号]TU758 [文献标识码]A [文章编号]1002-8498(2013)02-0017-03 Flexible Lifting Technique for Super Large Solder Ball Space Truss Roof Dong Kang' Chen Haizhou Wang Yuling? Xie Gangkui Zhang Qilin' (1.Shanghai Aircraft Manufacturing Co. Ltd.Shanghai 200436 China: 2.China Construction Eighth Engineering Division Co.Lid Shanghai 200120 China; 3.School of Ciwil Engineering Tongji University Shanghai 200092 China) Abstract:The flexible overall lifting technique is put forward for the construction of the 30 000m2 COMAC roof which is made of solder ball space truss structure.The numerical simulation is carried out and the effect of unequal lifting on structural behavior is analyzed.The monitoring system is designed and installed for the forces and deflections of the structure during construction.Numerical analysis and engineering practicing show that the flexible overall lifting technique is with sufficient safety and obvious advantage in economy. Key words:steel structures;space truss;lifting;simulation;monitoring 1工程概况 约2400t.如图1所示. 中国商用飞机有限责任公司,简称中国商飞 (Commercial Aireraft Corporation of China Ltd. 简称 COMAC)部装厂房是其总装制造中心的重要厂房之 一,也是最大的厂房.部装厂房屋面采用焊接球网 架结构,长297m 宽111.2m.其中网架跨度96m ...
[关键词】地下工程;基坑;降水;监测 [中图分类号】TU753.6 [文献标识码]A [文章编号]1002-8498(2013)22-0102-04 ConstructionofSuper-largeandDeepFoundationExcavation DewateringandSoilExcavation Ai Jie, Chen Hao,Mu Lan,Li Hui (The ThirdConstructionEngineeing LimitedCompanyofChinaConstructionSecond Engineering Bureau Ltd.,Beijing100070,China) Abstract:Combined with actual project, the construction of foundation excavation is difficult because of large area and soil excavation,narrow construction site,plex environment,et al.By setting trestle on the first inner support as the construction road, the problems for soil excavation and transportation are resolved,the dewatering and soil excavation by zoning and segmentation reduced the construction difficulty and quicken construction pace. By the omnidirectional monitoring on foundation excavation, the safety of foundation excavation is ensured. Key words:underground;foundation excavation;dewatering;monitoring 1工程概况 南区基坑围护采用Φ900mm@1100mm钻孔灌 金融街(南开)中心工程位于天津市南开区,占 注桩,桩长19.0m,三轴搅拌桩止水惟幕采用 地面积79598.6m²,建筑面积为440674.54m²,建 Φ850mm@1200mm,有效桩长16.0m。
施工技术 2014年4月下 90 CONSTRUCTION TECHNOLOGY 第43卷第8期 D01:10.7672/sjs2014080090 超大面积洁净厂房管道整体安装技术 陈宗科1,龚应波2,陈晓波1,李博1 (1.中建三局机电工程有限公司,湖北武汉430064;2.中建三局集团 有限公司北京公司,北京100097) [摘要]对第8.5代薄膜晶体管液晶显示器件(TFT-LCD)项目的超大面积洁净厂房管道采用整体安装进行分析和 总结.针对本工程大型管道工期紧、资源投人大、作业空间高、交通组织困难、机械投入量多等施工作业特殊的环 境,从管道整体吊装施工方法、机械设备选择、吊装先后顺序等方面采取措施,为超大面积洁净厂房管道整体安装 控制提出可靠的技术方案,从而有效地保证了管道之间焊接对口平直度、焊接外观平滑、无焊瘤的质量要求. [关键词]安装;洁净厂房;管道;焊接 「中图分类号1TU811 [文献标识码]A [文章编号]1002-8498(2014)08-0090-03 Integral Installation Technology for Super-large Area Clean Workshop Chen Zongke' Gong Yingbo? Chen Xiaobo' Li Bo' (1.The Mechanical and Electrical Engineering Co.Ltd.of CCTEB Wuhan Hubei 430064 China; 2.China Construction Third Engineering Bureau Group Co.Ld.Beijing) Beijing 100097 China) Abstract:For super-large clean workshop pipeline in some TFT-LCD project the authors analyze and summarize integral installation technology used in the pipeline installation.On the special construction working surrounding of tight construction period large cost high working space hard traffic organization and many machines authors take a series of measures such as integrate hoisting method machine and equipment selection and hoist sequence to guarantee quality requirements of pipeline welding. Key words:installation;clean workshop;pipeline;welding 1工程概况 层高达14.3m 高空作业工效低,危险系数大. 第8.5代薄膜晶体管液晶显示器件(TFT-LCD) 3)专业分包多,机电空间管理协调难度大 项目总建筑面积713885.8m2.其中,1号阵列厂房 本工程机电专业分包达53个,根据合同要求, 建筑面积约27万m2 其中洁净区16万m2 办公区 空间管理的协调由机电分包负责,在短短的几个月 和支持区11万m2 涉及大小管道28余万m 时间完成如此大体量的工作,...
施工技术 2013年1月下 20 CONSTRUCTION TECHNOLOGY 第42卷第2期 超大面积屋盖柔性提升系统的有限元分析及试验研究* 张晓勇,陈海洲,王玉岭,谢刚奎1,张其林2 (1.中国建筑第八工程局有限公司,上海200120;2.同济大学土木工程学院,上海200092) [摘要]对中国商飞(C0MAC)部装厂房3万m2焊接球屋盖的柔性整体提升施工工艺进行了数值模拟分析,对柔 性提升系统进行了试验研究.柔性提升工艺可在保证施工安全的前提下实现最少的替换结构件用钢量以及最短 的施工工期.结果表明在1.54倍设计荷载作用下,下吊点测点的荷载-应力曲线是线性变化并且不超过材料屈服 强度,表明下吊点完全处于弹性状态;同时指出柔性提升装置具备充分的安全可靠性. [关键词]钢结构;网架;柔性提升;数值模拟;试验研究 [中图分类号]TU311.41 [文献标识码]A [文章编号]1002-8498(2013)02-0020-03 Analysis and Experiment on Flexible Lifting System of Super Large Space Truss Roof Zhang Xiaoyong' Chen Haizhou' Wang Yuling' Xie Gangkui' Zhang Qilin2 (1.China Construction Eighth Engineering Division Co.Ltd.Shanghai 200120 China; 2.School of Civil Engineering Tongji University Shanghai 200092 China) Abstract:The numerical simulation analysis is applied on the flexible overall lifting process of the 30 000m2 super large space truss roof of COMAC installed plant and the experiment is also conducted on the lifting system.The flexible overall lifting technique can realize the minimum weight of the replaced steel members and the shortest construction period in condition of the construction safety.The simulation and experimental results show that under 1.54 times design loads the loads and stress curve of the monitoring points of the upper hanging point are linear and it don't exceed the yield strength which shows that the upper hanging point is under elastic state.Meanwhile the flexible lifting equipment has excellent safety and reliability. Key words:steel structu...
施工技术 2016年4月下 6 CONSTRUCTION TECHNOLOGY 第45卷第8期 D0I:10.7672/8js2016080006 超大长径比钻孔灌注桩超重钢筋笼施工关键技术* 余地华,叶建2,侯玉杰2,汪浩,刘磊2 (1.中建三局集团有限公司,湖北武汉430064; 2.中建三局集团有限公司工程总承包公司,湖北武汉430064) [摘要]以天津高银117大厦超大长径比钻孔灌注桩钢筋笼施工为例,对钢筋笼安装制作、连接及吊装等方面进行 研究.该技术保证了钢筋笼的安装制作快速准确,以及吊装过程钢筋笼保持稳定、不变形,在规定时间内准确下放 到位,不影响桩孔的稳定,顺利完成浇筑.基于天津高银117大厦工程实践,该技术的应用不仅保证了施工质量而 且大大节约了成本,对超长桩的施工有很好的工程推广及应用价值. [关键词]高层建筑;地下工程;钻孔灌注桩;钢筋笼;安装;施工技术 [中图分类号]TU974 [文献标识码]A [文章编号]1002-8498(2016)08-0006-03 The Key Construction Technology of Super Heavy Reinforcement Cages of Cast-in-place Bored Pile with Super Large Length Diameter Ratio Yu Dihua' Ye Jian2 Hou Yujie2 Wang Hao' Liu Lei2 (1.China Construction Third Engineering Bureau Group Co. Ltd.Wuhan Hubei 430064 China; 2.General Construction Company of CCTEB Group Co.Ltd.Wuhan Hubei 430064 China) Abstract:Based on the construction of super heavy reinforcement cages of cast-in-place bored pile of Tianjin Gaoyin 117 Building the reinforcement cage installation connection and hoisting were researched.The technology ensured that the installation of reinforcement cage was quick and accurate and reinforcement cage remained stable and had no deformation during the lifting process.The reinforcement cage was put in place accurately in set time.It didn't affect the stability of the pile hole and finished concrete pouring successfully.Based on engineering practice of Tianjin Gaoyin 117 Building the technology proved not only to ensure the construction quality but also save the cost.It has a very...
施工技术 2010年3月 70 CONSTRUCTION TECHNOLOGY 第39卷第3期 贝克曼梁弯沉车弯沉测定的影响因素分析 严二虎 (交通部公路科学研究院,北京100088) 【摘要]贝克曼梁弯沉仪测定路面弯沉一直以来是我国公路工程路面弯沉检测和竣工、交工验收的标准方法,提高 其测量精度对路面弯沉评价的公正性和合理性具有重要意义.弯沉车荷载以及后轴轮胎的类型、胎面花纹、层级、 轮胎压力和轮胎尺寸对贝克曼梁方法测定路面弯沉均有影响,在轮胎因素中轮胎的宽度对弯沉测定结果影响最 大.现场测试规程中对弯沉车的荷载等进行了规定,但是对测定车轮胎要求相对不足,分析认为需要对弯沉车的 后轴轮胎也应提出要求.针对目前工程上弯沉车选择的随意性,提出了弯沉车选择的建议. [关键词]道路工程;贝克曼梁;轮胎;弯沉;路面 [中图分类号]U416.2 [文献标识码]A[文章编号】1002-8498(2010)03-0070-04 Effect Factor Analysis of Benkelman Beam Deflection Measuring Device on Pavement Deflection Yan Erhu Research Institute of Highway Ministry of Communications Beijing 100088 China) Abstract:The Benkelman beam deflection method has been a standard method to test deflection of pavements for highway engineering pavement construction control and quality inspection and quality acceptance.So it is very important for the fairness and reasonableness of pavement evaluation to improve its measurement accuracy.The single axle load tire type tire tread pattern tire ply tire pressure and tire sizes all affect the measuring result and the tire size is key factor.The requirements of deflection measuring devices in the field test methods of subgrade and pavement for highway engineering but nothing about tires.Now it is still arbitrary to select deflection truck so it is necessary to add the requirements of rear tires.Based on the field test and model analysis propositional requirements of deflection measuring devices are put forward. Key words:highway engineering;Benkelman beam;tire;defl...
[关键词]高铁;车站;主体结构;钢筋;连接;质量控制 [中图分类号]TU755.3 [文献标识码]A [文章编号〕1002-8498(2013)24-0090-03 QualityControlofSteelStraightThreadConnectionfor MainStructureofXuchangHigh-speedRailwayStation Li Jianmin (Xuchangshi Tengfei Shizheng Engineering Group Co. ,Lid. ,Xuchang,He'nan 461000,China) Abstract:The construction difficulties and emphases of steel straight thread connection for main structure of Xuchang high-speed railway station are introduced,and the corresponding construction process and inspection procedure are formulated,then the main measures of quality control are put forward.Based on the quality questions about the steel straight thread connection,the construction factors are researched and the corresponding treatments are obtained,so the steel connectionquality are guaranted. Key words;high-speed railway; stations;main structure;reinforcement; connection;quality control 1工程概况 筋直螺纹连接合格率,确保工程质量,公司特成立 许昌高铁车站站前广场及地下空间位于许昌 了QC小组,并制定了钢筋直螺纹连接施工工艺流 市东区烟琊郭村,分为地面层和地下1层,车站总长 程及检验程序(见图1)。
施工技术 2013年6月下 74 CONSTRUCTION TECHNOLOGY 第42卷第12期 D01:10.7672/sgj92013120074 西藏气候对建筑工程影响及预防措施 秦宇,韩慧,齐根辉 (武警水电第二总队八支队,福建厦门361009) 【摘要]在西藏复杂多样的高原气候中,建筑工程受到诸多环境因素影响.结合当地工程建设实际情况,从空气水 分含量、温度变化、风暴等几方面简要分析了建筑工程受到不利因素影响的原因.最后分别针对各种气候环境探 讨了诸如调整工期时间、采取特殊有效的养护方法、增加各种防护方式等应对措施. [关键词]气候;建筑工程;混凝土;影响;预防措施 [中图分类号]TU7 [文献标识码]A [文章编号]1002-8498(2013)12-0074-03 The Influence and Preventive Measures of Tibet Climate on Building Engineering Qin Yu Han Hui Qi Genhui No.8 Detachment No.2 Hydropower Force of Armed Police Xiamen Fujian 361009 China) Abstract:In Tibet area plicated and various plateau climate influences the building engineering. Combing with the practice conditions of local building construction this paper analyzes some influence factors of climate to building construction from the aspect of water content of air temperature change and storm.Based on various plateau climate some countermeasures are put forward such as adjusting construction time using effective curing method and adding some preventive methods. Key words:climate;buildings;concrete;influence;preventive measure 1西藏气候特点 季”,也叫“风季”,一般是从10月下旬到次年的5 西藏高原复杂多样的地形地貌和大气环流的月,在这个季节里,整个西藏降水量皆很少,气候相 影响,形成了独特而且复杂多样的高原气候.除呈当干燥;冬季的降雪主要集中在11月到次年2月, 现西北严寒干燥,东南温暖湿润的总趋势外,还有在个别地方如阿里地区、一些海拔4000m以上的高 多种多样的区域气候和明显的垂直气候带.空气山,有时4 5月也下雪.但是固体水对空气湿度影 稀薄、含氧量少、气压低是其最大环境特点.由于响很小,所以总体来说即使在降雪量较大的冬季, 海拔高,所以空气稀薄洁净、尘埃和水汽含量少、大 还是不能摆脱气候干燥的大环境. 气透明度高,阳光透过大气层时,太阳辐射能量损 水泥在凝固的过程中是一个需要充足水分来 失少,所以光照充足、辐射量大,是全国太阳辐射量完成良好化学反应的过程,无论是混凝土结构,还 最多的地方.西藏气压低、温度年变化小而日变化 是砌体砂...
[关键词]钢结构:管桁架;液压同步提升;温差;施工技术 [中图分类号]TU758.11 [文献标识码】A [文章编号]1002-8498(2014)20-0029-04 SteelTubeTrussStructureRoofConstructionofTibet ConventionandExhibitionCenter Han Xiangke',Liu Minglu',Sun Congyong',Sun Wei',Si Kun', WangFuqin',Jia Wenbin',Su Bo² (1.CMTCC Shanghai Shisanye Construction Co.,Lid.,Shanghai 2019,China; 2.Faculty of Civil Engineering and Mechanics,Jiangsu University,Zhenjang,Jiangsu 212013,China) Abstract:Tibet Convention and Exhibition Center project,due to its location of high altitude,low oxygen levels in the Lhasa area, and the plexity of roof shape,height,large span and lots of pipes,is difficult for the conventional construction methods.Through parison,a construction plan of the outer part of the roof lifting by bining unit,the internal part of roof by integral lifting technology is established.This method reduces the high operation effectively,improves the efficiency of the construction, the finally construction result shows that the proposed construction technology is with Key words: steel structures;tube truss;hydraulic synchronizing lifting;temperature difference;construction 1工程概况 m。
2010年8月 施工技术 第39卷第8期 CONSTRUCTION TECHNOLOGY 129 西安咸阳机场T3A航站楼大型钢管柱安装技术 卜延渭,范永辉 (陕西建工集团机械施工有限公司,陕西西安710032) [摘要]西安成阳机场T3A航站楼主楼为钢结构和钢筋混凝土混合结构,40根钢管混凝土柱为主楼屋盖结构的支 撑柱.综合考虑土建工程施工工艺和总体施工计划安排,决定采用分两段跨内吊装的施工方案.重点介绍了钢管 柱制作过程中下料尺寸预放量、端部铣平、钢管矫正等工序,以保证钢管的几何尺寸和精度:以及钢管柱安装过程 中,定位螺栓安装、钢管柱对接、钢管柱测控等工艺,取得了良好的效果. [关键词]西安成阳机场;钢管混凝土柱;吊装;制作;安装 [中图分类号]TU758.15 [文献标识码]A [文章编号]1002-8498(2010)08-0129-04 Installation Technology of Large Steel Tube Column in T3A Terminal Building of Xi'an Xianyang Airport Bo Yanwei Fan Yonghui Shaanxi Construction Engineering Group Mechanized Construction Co.Lad.Xi'an Shaanxi 710032 China) Abstract:Main building of T3A Terminal Building of Xi'an Xianyang Airport is mixed structure with steel and reinforced concrete and there are forty concrete filled steel tube columns as support columns of main building roof.By considering the construction technology of civil engineering and total construction plan prehensively the construction scheme of hoisting in span through two segments is adopted.The process of reservation of blanking during steel tube fabrication is introduced in detail to assure the geometry size and precision as well as the milling flat at ending and correetion of steel tube.Besides the location bolt installation docking and measurement and control of steel tube column are also indicated during installation of steel tube column.It has gained excellent effects. Key words:Xi'an Xianyang Airport;concrete filled steel tube;hoisting;fabrication;installation 钢管柱结构...
【关键词】钢结构;屋盖;卸载;数值模拟;监测 [中图分类号]TU758.11;TU311.41 [文献标识码】A [文章编号】1002-8498(2013)20-0039-05 UnloadingSimulationAnalysisandtheFieldMonitoringfor XiningGymnasiumSteelRoof Wang Xiuli,Liang Baoxiang (School of Civil Engineering,Lanzhou University of Technology,Lanzhou,Gansu730050,China) Abstract;The change of the structural system must be considered in the construction process as the force raises the overall plan and monitors the structural displacement and the stress of the key joints in real time bining with the characteristics of the unloading engineering of Xining Gymnasium roof support. At the same time, the variation of the key rods' stress and structural deformation is confirmed and pared with the measured data using the software of finite element software ANSYS. The results show that the vertical altitudes accord with the design demands after unloading the roof support,the change of the stress in key rods is small paring with that before unloading,and the change of the stress of all rods is slow during unloading. Key words:steel structures;roofs;unloading; simulation;monitoring 0引言 程,一般可以分为两个过程:前期的安装成型过程 随着我国经济实力的增强和社会发展的需要,: 和后期的卸载过程。
[关键词]机场;桁架;吊装;支撑格构架;测量 [中图分类号】TU758.11 【文献标识码】A [文章编号】1002-8498(2013)15-0023-04 Installation Technology of Steel Structure in T2 Terminal Building ofXiningCaojiabaoAirport Xue Pengfei,Bo Yanwei, Duan Wen'ge (Shaanxi Construction Engineering Group Construction Machinery Co.,Lad.,Xi'an,Shaanxi710032,China) Abstract;Steel structure engineering of T2 terminal building in Caojiabao Airport in Xining city has many difficulties such as harsh climatic condition,limited construction site,plex truss structure,inclined steel column and poor structure stability.The construction plan for roof steel structure is in site installation and segmental assembly.This paper mainly introduces the configuration scheme of hoisting machinery, design plan of lattice frame for supporting, hoisting plan of steel column and truss, and plan of measurement control. It proves that the truss is successfully installed. Key words;airports; trusses; hoists; supporting lattice frames; measurement 1工程概况 部标高为7.880m,钢柱与地面分别呈67°,68°和 西宁曹家堡机场是青海省唯一的二级机场,也7 71°。
2013年4月上 施工技术 第42卷第7期 CONSTRUCTION TECHNOLOGY 9 D01:10.7672/sgjs2013070009 袖阀管注浆技术在深圳平安金融中心 深基坑工程中的应用 周予启,史春芳,任耀辉 (中建一局集团建设发展有限公司,北京100102) [摘要]深圳平安金融中心基坑开挖深度大,周边建筑物多,环境复杂,对变形控制要求高.采用袖阀管注浆技术 结合高压旋喷桩形成整体止水帷幕.通过围并试验,确定注浆参数和止浆条件.介绍了袖阀管注浆原理和注浆围 井试验,详细介绍了该技术的施工要点.监测结果表明,支护结构及基坑周边环境均处于安全状态. [关键词]地下工程;高层建筑;深基坑;袖阀管;注浆;止水帷幕 [中图分类号]TU753 [文献标识码]A[文章编号]1002-8498(2013)07-0009-03 Application of Sleeve-valve Tube Grouting Method in Deep Foundation Excavation in Shenzhen Ping'an IFC Zhou Yuqi Shi Chunfang Ren Yaohui China Construction First Group Construction Development Co. Ltd.Bejing 100102 China) Abstract:Foundation excavation in Shenzhen Ping'an IFC has large excavation depth plicated environment and high requirement on deformation control.Sleeve-valve tube grouting method bined with high pressure jet grouting pile is adopted as waterproofing curtain.Grouting parameters and slurry stop conditions are determined according to enclosed well test.This paper introduced sleeve-valve tube grouting principle and grouting enclosed well test introduced construction points in detail.Monitoring results show that support structure and foundation excavation environment are safe. Key words:underground;tall buildings;deep foundation excavation;sleeve-valve tube;grouting; waterproofing curtain 1工程概况 人工填土层、第四系全新统冲积层、上更新统冲洪 深圳平安金融中心位于深圳市福田中心区1号 积层及中更新统残积层,下伏基岩为燕山晚期花岗 地块,总建筑面积约46万m2 由1栋660m的超高 岩.勘察期间,各钻孔均遇见地下水赋存,运移于 层塔楼、1栋55.4m的裙楼和整体5层地下室组成. 人工填土、第四系冲洪积中粗砂、粉细砂、粗砾砂、 工程占地面积18931m2 基坑面积17150m2 开挖 残积层及花岗...
施工技术 2016年11月下 46 CONSTRUCTION TECHNOLOGY 第45卷第22期 D0I:10.7672/5js2016220046 补连塔煤矿斜井盾构施工通风保障系统研究* 辛德林,王秋里,张大伟,张世良 (中煤科工集团武汉设计研究院有限公司,湖北武汉430064) [摘要]根据补连塔煤矿斜井盾构法施工的特点,介绍了性能曲线宽广的大风压通风设备,采用压人式通风方式, 为施工提供通风系统保障.研究成果经该工程验证,满足规程规范及设计要求,为盾构施工过程中的通风安全提 供保障. [关键词]盾构法;斜井;通风;压入式通风系统;施工 [中图分类号]TD441;TD724 [文献标识码]A [文章编号]1002-8498(2016)22-0046-03 Study on Ventilation System of Shield Construction for Bulianta Coal Mine Inclined Shaft Xin Delin Wang Qiuli Zhang Dawei Zhang Shiliang Wuhan Design and Research Institute China Coal Technology and Engineering Group Wuhan Hubei 430064 China) Abstract:According to the shield construction of Bulianta coal mine the performance curve wide large negative pressure ventilation equipment is introduced the pressure is used into the ventilation the ventilation system security construction is obtained.Research results verified by the project the requirements of the procedure specification and design is met the system can provide assurance on the ventilation safety in the process of shield construction. Key words:shields:inclined shaft;ventilation:forced ventilation system;construction 随着我国各大城市市政建设的大力发展,盾构渡顺接,全段无平曲线;此外,二级平台预留接口通 隧道施工以其安全、快速、高效等特点在城市轨道道与1-2煤层连通,斜井终点落平后与2-2煤层联 交通、市政公用管路等各类地下基础工程建设中的络巷相接. 应用越来越广泛.盾构施工方法应用于煤矿斜井 2通风系统方案简述 井筒的施工,会受到施工条件、井筒断面布置等多 由于补连塔煤矿斜井盾构施工过程中需穿越 种因素的影响,施工中,遇到高地温、瓦斯等不利条 煤层,含有瓦斯等不良气体,当井筒施工距离超过 件的可能性很大,且施工过程中穿越地层多,地质 一定距离时,自然通风方式将无法满足盾构施工的 环境复杂,合理的通风保障系统是井筒快速、安全 通风需要,此时必须采用机械通风方式.结合本工 施工的前提. 程盾构施工的具体特点,经过方案论证后,推荐采 1工程概况 用基于冲淡通风理...
施工技术 2010年9月 60 CONSTRUCTION TECHNOLOGY 第39卷第9期 芜湖名流印象工程深基坛支护技术 汤国强,朱守东2 (1 武汉大学土木建筑工程学院,湖北武汉430072:2,中工建设有限公司,期北武汉430312) [摇]湖名流印象工程名地面87000m2 2层地下室,深大基支护工程.基悦采用支护联含斜向 加筋水土粒支护,放破处土钉支护,结舍基悦周环境条件夏杂及基悦本身特点,分段采用不同的支护术, 实施信息化施工,基悦大阳审处支护传柏施工期南位与沉降均超过预管提计值,佳含监测传果,采取和应的加团 满施,保证了基立常施. [关键词]基悦支护:支护:监测:加固 [中分类]TU753 [文献标识]A [章编]1002-8498(2010)09-0060-03 Support Technology of Deep Foundation Excavation in Wuhu.Mingliuyinxiang Tang Guoqiang' Zhu Shoudong㎡ (1.Civil Engineering and Architectural College Wuhan University.Wuhan Hubei 430072 China: 2.Zhonggong Construction Co.Ltd.Wuhan Hubei 430312 China) Abstract:WuhuMingliuyinxiang projeet is about8700m2.It is designed with two-storey basement which belongs to deep and large foundation excavation support projeet.Support piles bining with inclined reinforced cement-soil anchor piles are designed as support structure and soil nailing is used at the slope.According to surrounding condition and characteristics of the foundation excavation different support structures are designed at different segments.Furthermore information construction technology is adopted.The support displacement and deformation at the large exposed corner of foundation exeavation are larger than designed alarm values.Then reinforeement measures are adopted aecording to the monitoring results to ensure successful construction. Key words:foundation excavation support:support pile:monitoring:reinforcement 1工程概况 北京路 -.10p6 芜期名流印象工程源临长江,他处芜湖市沿江 i2管角 22层6,满度&12加 5层建筑(基...
施工技术 2013年5月上 74 CONSTRUCTION TECHNOLOGY 第42卷第9期 D01:10.7672/8gj82013090074 线声源下小型声屏障在隔声窗中的应用* 雷一彬,晋美俊 (太原理工大学建筑与土木工程学院,山西太原030024) [摘要]结合道路交通的发展趋势及噪声特点,针对临街高层住宅的通风隔声窗问题进行研究.主要分析了在线 声源交通噪声前提下,小型隔声屏障在顶部通风凸窗上的可行性,在模拟了实际临街高层住宅噪声特点的前提下, 进行了有效的理论推导,并得出了小型声屏障在此类特定前提下的可行性、局限性和适应范围. [关键词]隔声窗;噪声;线声源;声屏障;应用 [中图分类号]TU112.59 [文献标识码]A [文章编号]1002-8498(2013)09-0074-04 Application of Small Sound Barrier in Sound Insulation Window on Line Sound Source Lei Yibin Jin Meijun College of Architecture Civil Engineering Taiyuan University of Technology Taiyuan Shanxi 030024 China) Abstract:Considering the development trend and characteristics of road traffic noise this paper studied the ventilation and sound insulation window for street high-rise residential buildings.Specifically the feasibility of utilizing small sound barriers at the top of the ventilation bay windows was analyzed under the premise of line source traffic noise.The actual street noise characteristics of the high -rise residential buildings were simulated and effective theoretical derivation was performed.Conclusions were drawn regarding the feasibilities limitations and applications of utilizing the small sound barriers under the specified conditions. Key words:sound insulation windows;noise;line sound source;sound barrier;application 0引言 动车拥有量迅速增加,并得出结论为:日益增加的 目前,多项研究监测表明,在建筑声环境研究机动车数量带来的交通噪声污染日趋严重,已经成 的大背景下,城市交通噪声是临街高层住宅所需要 为影响城市声环境的主要问题).这种情况在我 控制的主要噪声源之一.多年来,交通噪声监测值 国的其他城市具有普遍性. 呈上升趋势. 中国环境监测总站的部分资料统计结果表明: 2000年,李本纲对北京市部分城区的交通...
施工技术 2012年5月上 90 CONSTRUCTION TECHNOLOCY 第41卷第364期 纤维石膏空心大板复合墙体结构设计与施工 黄启政,陶敬生,田杰,苏灿臣 (山东建工集团,山东济南250014) [摘要]根据我国石膏资源丰富,工业副石音多的现实,结合国家墙体改革政策和节能环保的要求,在城市建设中 逐步取消黏土砖的情况下,以引进澳大利亚石育板生产线为基础,研究提出了纤维石青空心大板复合墙体结构的 计算、构造、运输、安装以及质量保证拾施. [关键词]绿色建筑:纤维石膏空心大板;墙体:构造;节能;环保 [中图分类号]TU756.45 【文献标识码]A【文章编号]1002-8498(2012)09-0090-05 Design and Construction of Composite Wall with Big Vacant Fiberglass Gypsum Panel in Construction Huang Qizheng Tao Jingsheng Tian Jie Su Canchen (Shandong Construction Engineering Group Ji'nan Shandong 250014 China) Abstract:According to the fact that we have abundant gypsum resource and industrial side gypsum in China also bining national policy requirements of wall body reform and energy saving environmental protection and under the condition of cancelling clay bricks in city construction step by step the authors study and put forward the measures of calculation structure transportation installation and quality guarantee regarding posite wall structure with big vacant fiberglass gypsum panel based on introducing gypsum panel production line from Australia into domestic. Key words:green buildings;big vacant fiberglass gypsum panel;wall;structure;energy saving: environmental protection 纤维石膏空心大板复合墙体结构体系是一种1纤维石膏空心大板性能 集轻质、隔声、耐火、承重、环保、节能等多功能于一 纤维石青空心大板是从澳大利亚RBS公司引 体的新型承重墙体结构体系.该体系的研究背景进的专门生产线,采用建筑石膏或工业脱硫石膏、 是根据目前国家墙体改革政策和“四节一环保”的玻璃纤维、水、添加剂等材料在工厂生产的标准定 绿色施工要求而提出的.众所周知,近年来,随着 型产品,其标准尺寸如图1所示. 国家能源政策和实施可持续性发展战略的要求,加 可 1313 强生态建设和环境体系已是我国确定的一项长期 基本国策,建筑领域的墙体改革势在必行,在中...