2016年3月下 施工技术 第45卷第6期 CONSTRUCTION TECHNOLOGY 83 D01:10.7672/8gjs2016060083 型钢转换梁跨沉降后浇带施工技术 唐长领 (中铁建设集团有限公司,北京100040) [摘要]超高层施工中会遇到裙房与塔楼交界处型钢转换梁跨越沉降后浇带、同时型钢梁上有型钢转换柱的情况, 结合工程实例,详细阐述型钢转换梁跨沉降后浇带的施工方法,在保证结构沉降需要的同时,确保了施工安全质量 和进度. [关键词]梁;型钢转换梁;后浇带;施工技术 [中图分类号]TU375.1 [文献标识码]A [文章编号]1002-8498(2016)06-0083-04 Construction of Steel Reinforced Transfer Beam Crossing the Late Poured Band Tang Changling China Railway Construction Group Co.Ltd.Beijing 100040 China) Abstract:Because of the late poured band at the podium and tower intersection or the condition of steel reinforced transfer beam crossing steel reinforced transfer columns bining with the project examples the construction method of steel reinforced transfer beam crossing the late poured band is described in detail.The structure settlement requirement is guaranteed meanwhile the construction safe quality and program is ensured. Key words:beams;steel reinforced transfer beam;late poured band;construction 0引言 土强度等级为C35. 近年来超高层建筑发展迅速,建筑朝体型复2施工方案 杂、功能多样的综合性方向发展,因此,带转换层的2.1施工方法确定 超高层建筑因其具有底部大空间、使用灵活、方便 本工程原设计要求型钢梁(包含钢梁及钢筋) 等优点,在国内得到广泛应用.石家庄勒泰中心工 在沉降后浇带处断开,形成钢悬挑构件,相关钢结 程转换层位于地下1层,该部位有多处型钢转换梁 构、混凝土结构等必须待主楼结构封顶60d沉降完 跨越沉降后浇带的情况,施工中型钢梁后浇带处分 成后进行施工.原设计沉降后浇带处做法如图2所 节设小钢梁,采用临时螺栓固定、梁下加支撑钢柱 示,原设计后浇带宽1m 钢梁居中断开,沉降稳定后 的方案,确保施工安全和质量,大大提高施工进度. 焊接.由于沉降会导致钢梁错开,故整垮不能施工. 1工程概况 根据原设计钢梁在沉降后浇带中间断开,沉降 石家庄勒泰中心4号楼工程地下共4层,地上 稳定后钢梁可能错台严重,无法进行施工,因此只 31层,建筑高度134m 转换层位于地下1层,结构 能整跨型钢转换梁不施工.如沉降稳定后再施工, 形式为型钢混凝土框架结构.型钢混凝土结构梁 不仅造成占用大量周转材料和塔式起重机泵车等 截面尺寸为1000mm×120...
施工技术 2014年4月上 18 CONSTRUCTION TECHNOLOGY 第43卷第7期 D0I:10.7672/8gjs2014070018 型钢斜支撑组合支护技术在深基坑工程中的应用 史毅清 (山西省建设工程安全监督管理总站,山西太原030013) [摘要]通过对双排桩门架式支护结构、预应力锚索及型钢斜支撑3种支护技术的分析以及在具体深基坑工程中 的实践应用表明,这种组合支护体系具有实践意义.对型钢斜支撑技术在实际应用中存在的一些问题和节点处理 措施进行了阐述.监测分析结果表明,该支护体系达到了预期效果. [关键词]地下工程;深基坑;支护;双排桩;锚索;施工技术 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2014)07-0018-04 Application of Supporting Technology Combined with Section Steel Inclined Brace in Deep Foundation Excavation Shi Yiqing The Construction and Engineering Quality and Supervisor General Station of Shanxi Province Taiyuan Shanxi 030013 China) Abstract:The analysis and application of supporting technology such as double row piles gantry prestressed anchor cable and section steel inclined brace in foundation excavation engineering show that the support system has practical significance.This paper introduces the problems and treatment measures of the method in construction.Monitoring data analysis shows that the support system can get the expected effect. Key words:underground;deep foundation excavation;supports;double row piles;anchor cables;construction 深基坑支护施工是大型和高层建筑施工中极 由于该工程规模庞大,周边环境和地质条件复 为重要的环节,设计和施工必须选择技术可行造杂,所采用的基坑支护形式也多样,现仅就该工程 价合理的围护结构方案,以确保基坑周围及基坑围 基坑东侧靠近11层建筑的局部基坑支护形式进行 护体系的安全和施工进度.本文通过介绍某深基分析.该建筑最高11层,地下1层,框架结构,筏板 坑工程使用双排桩门架式支护结构、预应力铺索及 基础,离基坑边距离为15m左右,底板垫层底标高 型钢斜支撑3种支护组合体系的应用,为今后类似 -6.200m 采用水泥粉喷桩复合地基,有效桩 工程提供借鉴. 长8.0m. 1工程概况 2场地工程地质条件 太原市某大型城市综合体建筑B区包括17栋 拟建场地地形开阔平坦,勘探期间测得各勘探 高层建筑物,建筑物分别为26 33 34层高层住宅; 点地面绝对高程779.260~782.810...
2014年8月下 施工技术 第43卷第16期 CONSTRUCTION TECHNOLOGY 59 D0I:10.7672/5j52014160059 型钢支撑满堂高支模脚手架安全性分析与应用* 刘睿,罗宗礼1,何夕平2,郑磊2,张运帅2 (1.中建四局第六建筑工程有限公司,贵州贵阳550000;2.安徽建筑大学土木工程学院,安徽合肥230022) [摘要]贵阳某建筑依山而建,部分倾斜段与山体不相连,倾斜跨度为36.结合具体的特殊工程,施工中采用型 钢支撑满堂高支模脚手架体系,为确保该体系的成功应用,采用理论分析、数值模拟和现场实时监测等研究方法, 分析架体和型钢的最不利受力工况,预控和实时监控架体的安全状况,得出一些有益的结论. [关键词]模板;脚手架;应力;位移;安全性;数值模拟;监测 [中图分类号]TU731.2[文献标识码]A[文章编号]1002-8498(2014)16-0059-04 Safety Analysis and Application of Full High-formwork Scaffold Supported by Shaped Steel Liu Rui' Luo Zongli' He Xiping? Zheng Lei? Zhang Yunshuai (1.China Construction 4th Engineering Bureau 6th Co.Lid.Guiyang Guizhou 550000 China; 2.College of Civil Engineering Anhui Jianzhu University Hefei Anhui 230022 China) Abstract:A building in Guiyang is built along some mountain.A inclined part in the building is independent from the mountain the inclined span is 36m.This building uses full high-formwork scaffold system with shaped steel support.To ensure the successful application of the system many research methods such as the theoretical analysis numerical simulation and real-time field monitoring are used to analyze the most unfavorable stress condition of the scaffolding frame body and the shaped steel.By pre- controlling and real-time monitoring of the scaffolding frame body'safety some useful conclusions are summed up. Key words:formwork;scaffold;stress;displacement;safety;simulation;monitoring 1工程概况 贵阳花果园办公一号楼位于贵阳市彭家湾区, 单体建筑面积84875m2.工程背面顺山势而建,在 倾斜段建筑与山体不相连,倾斜跨度36m 根据设计 要求,施工过程中...
[关键词]地下工程;深基坑;软土富水地层;支护;型钢复合喷锚;内支撑;监测 [中图分类号】TU753【文献标识码】A[文章编号]1002-8498(2012)19-0037-04 Application of Steel Composite Ejector Anchor and Inner Supports in Supporting Foundation Excavations in Soft Soil with Rich Water Jiang Ping, Feng E, Zhou Shuangjiao (China First Metallurgical Group Co.,Ltd.,Wuhan,Hubei 430081,China)
Abstract: Based on some foundation excavation supporting project in Wuhan, this paper expounded a new technology of steel posite ejector anchor and inner supports adopted in posite environment and geological conditions without enough construction space. Combined with engineering practice, this paper
effect,application range and prospect of this supports structure.Monitoring result shows that the deformation can meet the design requirement, and good economic and social benefits are obtained. Key words: underground; deep foundation excavation; soft soil with rich water; supports; steel
随着建筑物的增多、城市基础设施的不断建工,明挖段基坑开挖深度最大达到约12.0m。
2013年8月上 施工技术 第42卷第15期 CONSTRUCTION TECHNOLOGY 61 D0I:10.7672/8gjs2013150061 [型PC百叶板外墙装饰施工技术 赵小平,梁羽,王蕾,方家福,汪文东 (中建城市建设发展有限公司,北京100037) [摘要]天津团泊新城国际网球中心一期工程为圆形建筑,外立面主体为钢结构且为倾斜状.经过探讨、试验、对 比分析,最后选择PC百叶板的可调连接装置代替传统幕墙施工工艺.介绍了PC百叶板可调连接装置的技术特 点、适用范围、工艺原理、操作要点,详细介绍了PC百叶板幕墙的安装工艺,总结了PC百叶板可调连接装置的施工 关键技术和创新点以及主要质量控制措施.实践证明,该技术施工工艺简单,现场可操作性强,节约材料,为绿色 施工提供了技术保障. [关键词]幕墙;PC百叶板;施工技术;绿色施工 [中图分类号]TU767.5[文献标识码]A[文章编号]1002-8498(2013)15-0061-03 Construction of Decoration with [-shaped PC Louver Wall Zhao Xiaoping Liang Yu Wang Lei Fang Jiafu Wang Wendong (China City Construction Development Co.Ltd.Beijing 100037 China) Abstract:Phase I of Tuanbo Xincheng International Tennis Center in Tianjin is round shape its facades is inclined steel structure.Adjustable connecting system is adopted for the PC louver wall instead of tradition curtain wall after discussion tests paring and analysis.The technical features applicable range principle and operation keys of the adjustable connecting system are introduced as well as installation technology of PC louver wall.The key construction methods innovation and quality control measures of the adjustable connecting system for PC louver wall are summarized.It proves that the construction technology is simple with good operational capability and it can save materials to provide technical support for green construction. Key words:curtain walls;PC louver walls;construction;green construction 1工程概况 团泊新城国际网球中心一期工程(半决赛场) 为2013年东亚运动会网球比赛场馆,总建筑面积 16155.1m2 其中地下1层、地上2...
[关键词]抽水蓄能电站;轴线;调整 [中图分类号]TV743【文献标识码]A[文章编号]1002-8498(2013)12-0090-03 AxisAdjustmentTechnologyofGeneratingSetin XiangshuijianPumped StoragePower Station Fan Guilong,Lin Yadong (No.8Detachment,No.2Hydropower Force ofArmed Police,Xiamen,Fujian 361009,China) Abstract:The quality of axis adjustment of generating set directly influences stability,effciency and life of thegenerating set running.During installation of generating set in XiangshuijanPumpedStoragePower Station, rotating part's data is measured by some new apparatuses, then these data are calculated to adjust the axis to gain good installation quality. Key words:pumped-storage power stations;axis;adjustment 响水润抽水蓄能电站位于安徽省芜湖市境内,轴的几何中心线与机组中心线偏差控制在一定范 为日调节纯抽水蓄能电站,装机容量为1000MW围内,将大大增加机组运行的稳定性。
施工技术 2012年6月下 54 CONSTRUCTION TECHNOLOGY 第41卷第367期 响水涧抽水蓄能电站下水库围堤基础 渗水处理技术 段琳,占小星,胡瑶 (武警水电第二总队五支队,江苏常州213031) [摘要]响水润抽水蓄能电站下水库围堤基础开挖后,西侧围提边坡出现两处大面积渗水现象,对围堤黏土填筑施 工质量影响很大.结合工程实际及工期要求,通过方案比选,确定采取“反滤排水、集中抽排、混凝土封堵”方案,并 详细介绍施工工序和控制要点.经过3年工程运行情况表明,该段图堤安全稳定,其处理效果满足设计要求. [关键词]水电站;水库;基础;海水处理:施工技术 [中图分类号】TU475.8:TV551.42 [文献标识码]A[文章编号]1002-8498(2012)12-0054-03 Seepage Treatment on Border Dike Foundation of Lower Reservoir in Xiangshuijian Pumped Storage Station Duan Lin Zhan Xiaoxing Hu Yao No.5 Detachment No.2 Hydropower Force of Armed Police Changzhou Jiangs 213031 China) Abstract:The west side slope of lower reservoir in Xiangshuijian pumped storage station appeared two large scepage areas after border dike foundation of lower reservoir excavation.It has a great influence on clay filling quality of border dike.In consideration of construction condition and time requirement the method of antifiltering drainage concentrative pumping and drainage and plugging by concrete is adopted by schemes selection and the construction process and control points are introduced in detail.The operation condition shows that the border dike is safe and sable the effect of treatment meets the requirements of design. Key words hydroelectric power stations;reservoirs:foundations;seepage;construction 1工程概况 粉质黏土防渗体的反压破坏,根据设计要求,将斜 安徽响水涧抽水蓄能电站位于安徽省芜湖市坡段黏土防体的填筑厚度由2m调整为4m. 三山区峨桥镇境内,距芜湖市约45km 电站装机容2009年3月初,西侧围堤T3570一T3784段基 量1000MW(4×250MW) 为日调节纯抽水蓄能电础开挖完成后,围堤T3702一T37315.0-9.4m 站,电站由上水库、输水系统、地下厂房系统、开关和T3751...
施工技术 2013年10月上 40 CONSTRUCTION TECHNOLOGY 第42卷第19期 D0I:10.7672/sgjs2013190040 响水涧下水库围堤淤泥质土深基坑开挖技术 刘剑,王丹 (武警水电第二总队,江西南昌330096) [摘要]响水涧抽水蓄能电站下水库位于浮山东面的湖荡洼地,开挖筑围堤圈围而成.围堤基础深基坑开挖均为 Q4淤泥质土,开挖深度达12-13m 采用水力冲淤结合反铲挖掘机挖装的施工方法,确保了深基坑边坡施工稳定, 快速、高效完成了基坑开挖. [关键词]水电站;深基坑;淤泥质土;施工技术 [中图分类号]TU453 [文献标识码]A [文章编号]1002-8498(2013)19-0040-03 Deep Foundation Excavation of the Dyke of the Xiangshuijian Lower Reservoir in Mucky Soil Liu Jian Wang Dan No.2 Hydropower Force of Armed Police Nanchang Jiangxi 330096 China) Abstract:The lower reservoir of the Xiangshuijian Hydroelectric Station locates in depression of lake at the east of Fushan mountain and is built by cofferdam.The cofferdam foundation is excavated 12 to 13 meters in depth in Q.mucky soil.The construction method of hydraulic and backdigger guarantees foundation excavation stable quick and effective. Key words:hydroelectric power stations;deep foundation excavation;mucky soil;construction 1工程概况 设备易沉陷,开挖层间施工道路修筑难度大. 安徽响水涧抽水蓄能电站位于安徽省芜湖市 2)基础开挖与库盆开挖高差较大,开挖深度 三山区峨桥镇响水涧村,电站装机容量4×250MW 大,深基坑开挖工程量大. 为日调节纯抽水蓄能电站,电站属大(2)型二等工 3)基坑两侧开挖边坡坡比为1:3与1:4淤泥质 程.下水库围堤基础需坐落在粉质Q3黏土层上, 边坡,承载能力低,遇雨易滑坡和塌方. 堤基范围的夹泥炭层、淤泥质Q黏土需全部清除. 4)深基坑位置为库盆及围堤开挖最低高程,积 围堤基础深基坑开挖主要集中在Ⅲ区堤1809一 水较为严重,排水难度较大. 堤2180段和V区堤2361一堤2800段,基坑 3开挖方案选择 开挖宽度最大分别为96.5 88m 基坑底部最大宽度 淤泥质土开挖方法一般有填土石挤淤法、驳船 分别为58.5 53.2m 基坑长度分别为370.6, 挖淤法、水力冲淤法、挖掘机开挖法等.其中,填土 439.3m 基础最大开挖深度分别约为12 13m 围堤 石挤淤法是用土石填筑体直接挤开淤泥,沉至淤泥 深基坑开挖典型断面如图1所示;深基坑开挖工程 中,形成混合物,然后清运至渣场,因挤淤深度有 量分别为44.94万m3 36.57万m3 均属Q4土开 限,成本高,不能满足本工程施工要求;驳船挖淤法 挖.Q4地层为第四系全新统河湖相沉积物,主要为 由于挖泥船和驳船运输组装困难,且由于水流作 淤泥质黏土夹泥炭层,压缩模量值低,为2.3~ 用,可能引起基坑周边的Q4土流动,导致边坡失 3.7MPa 属高压缩性土;地层强度较低,承载力仅为 稳,开挖量增大,也不能满足本工程施工要求;水力 45~60kPa. 冲淤法适用于稀淤泥开挖,一层处理深度大多1~ 2施工特点 3m 本工程Q4土开挖工程量较大,随Q4土深度不 1)深基坑开挖均为Q4土,土层承载力低,机械 等,其构成的成分较为复杂,有泥炭质土、淤泥质黏 [作者简介]刘剑,高级工程师,E-mail:cdbb@163. 土、黏土等,较为固结的Q4土难以采用水力冲淤开 [收稿日期]2013-05-05 挖.挖掘机行走方便,施工灵活,开挖效率高,修筑 万方数据 2013No.19 刘剑等:响水涧下水库围堤淤泥质土深基坑开挖技术 41 库 围堤中心线 13500 并挖 高程 24750 81450 35740 51200 5000 8000 6 500 8.500 泊口河 23015 泥炭 原地面线 5.000- 3 围堰 10...
[关键询】地下工程;受煤坑;支护:桩;钢支撑;内力;监测 [中图分类号】TU753[文献标识码]A【文章编号】1002-8498(2012)13-0021-04 Research ontheSupportfor CoalStore-excavationinComplexEnvironment WangLiudong',Ma Jinrong',TaoXiangling',Dong Guoqing (1. State Key Laboratory for Geomechanics and Deep Underground Engineering, China Unisersity ofMining &Technology.Xuzhou,Jiangsu221008,Chino; 2.China Coal Group,Daun Coal-eleetrcity Co.,Ld.,YaoQiao Ore,Peixisn,Jiang221611,China) Abstraet: With respect to a coal store-excavation in Huaibei, this paper studied the support technology for the excavation using a bination of step-slopes, retaining piles and interior supports. Change of the moment in the retaining piles and the axial forces in the interior supports were analyzed. Results show that both the bending moments and the axial forces stayed in controllable ranges,which means this support method is applicable. With minimum effect to the environment, normal operation of railways and factories around the construction site was successfully maintained. Key words:underground;coal-storing excavation;supports; piles;steelsupport;intemal uououoo 随着矿山的开采,受煤坑基坑工程的数量日益-20.950m,基坑开挖深度14.950~20.950m。
【关键词】全站仪;测量;误差;固定器;应用 [中图分类号]TU198 【文献标识码】A [文章编号]1002-8498(2014)14-0191-03 Production andApplicationTechnology of AdsorptivePrismFixedDevice FengFeng',Xu Shijie²,Yao Gang²,XuLianmin',ChenZhi',Fan Caixia' (1.China Construction Steel Structure Co.,Ltd.,Chongqing 400045,China; 2.Schoolof Civil Engineering,Chongqing University,Chongqing 400045,China) Abstract:We need a dedicated staffto fix prism while using total station to measure work.It is time- consuming,and it increases the uncertainty impactofhuman during the process of fixing.The result of measurement would be influenced by the accidental error and the mistake of human.Adsorption prism fixed device production andapplication avoid above-mentioned disadvantageseffectively.It isproved that the fixed device was reliable and practical through practical application in Chongqing T3A terminal construction process.By this way,we ensure the accuracyin the process ofmeasurement,and make the measurements work faster and more convenient. Key words:total station;measurement; deviation;fixed device;application 0引言 差,却忽略了测量中另一重要的组件-小棱镜。
【关键词]钢屋盖;吊装;张拉;仿真模拟;施工监测 [中图分类号】TU745.2[文献标识码】A[文章编号]1002-8498(2011)08-0037-05 Research on Hoisting and Tension of Steel Roof Structure in Zhenze Middle School Stadium in Wujiang Cao Guohui (Shenzhen A +E Design Co.,Lud., Shenzhen, Guangdong 518031,China) Abstract :Zhenze Middle School Stadium in Wujiang is posed of east part and west part. Span of east part is 170. 7m which mechanical system is gird structure with angled prestressed cable. Span of west part is 224. 0m which mechanical system is projecting truss with back prestressed cable. Based on stress characteristics of the two parts, installation method that shutle column and cables are hoisted simultaneously, then tensioned in place once for all and roof forming naturally is adopted in east part, while installation method that single tension and making cables meet design values according to backout bracket of jig in west part is used. By simulation calculation of Midas software, construction of the whole roof is proved practical. It provide construction monitoring data for construction. Key words;steel roof;hoisting; tension; simulation calculation; construction monitoring 1工程概况 吴江市震泽中学体育场位于吴江市新城区,总 建筑面积为55325m²,共设有坐席14530座,属于 中型体育场,是震泽中学新校区的重要组成部分。
2016年11月上 施工技术 第45卷第21期 CONSTRUCTION TECHNOLOGY 85 D0I:10.7672/5gj52016210085 压型钢板蒙皮体抗剪试验研究与有限元分析 薛刚1,王琪皓,朱华龙2,边海龙2 (1.内蒙古科技大学建筑与土木工程学院,内蒙古包头014010;2.包头正林钢构彩板有限公司, 内蒙古包头014000) [摘要]结合工程中的常规做法,对采用自攻螺钉连接的蒙皮体进行抗剪试验研究.通过对各组试件破坏现象的 分析,探讨自攻螺钉间距、板厚、德条数量对蒙皮体抗剪强度的影响.同时,采用ANSYS进行仿真模拟分析,与试 验进行对比验证.对比研究结果表明,ANSYS可用于蒙皮体的受力分析,在实际工程中可通过改变连接件间距、板 厚和檩条数量来提高蒙皮体抗剪强度. [关键词]压型钢板;蒙皮体;抗剪强度;试验;有限元分析 [中图分类号]TU375.4 [文献标识码]A [文章编号]1002-8498(2016)21-0085-06 Research on Shear Test and Finite Element Analysis of Skin Diaphragm of Profiled Sheet Xue Gang' Wang Qihao' Zhu Hualong? Bian Hailong (1.College of Architecture and Ciril Engineering Inner Mongolia Unirersity of Science and Technology Baotou Inner Mongolia 014010 China;2.Baotou Zhenglin Steel Structure Plates Co.Ltd.Baotou Inner Mongolia 014000 China) Abstract:Combined with mon practices in project this paper conducts shear test study on skin diaphragm which adopts tapping screw for connecting.Through analysis of test damage phenomena the authors explore the skin diaphragm shear strength which is affected by tapping screw separation distance thickness of plating the number of purlins.Meanwhile this paper uses ANSYS to conduct analogue simulation analysis and experiment for parison validation.The parative study results show that ANSYS can be used for skin diaphragm stress analysis.In the actual project skin diaphragm shear strength can be improved by changing adapting piece spacing thickness of plating the number of purlins. Key words:p...
施工技术 2014年10月上 106 CONSTRUCTION TECHNOLOGY 第43卷第19期 D0I:10.7672/5js2014190106 压入式通风技术在胶州湾海底隧道施工中的应用 徐义标 (江西交通工程咨询监理中心,江西南昌330008) [摘要]长大隧道钻爆法施工中凿岩、爆破、装运都会产生大量的粉尘、废气,施工通风是一个难以攻克的技术难 题.通过分析长大隧道分阶段工程环境,结合施工通风,对施工通风的风量、风压计算、通风系统布置及改善隧道 施工通风的技术途径作了较详细的介绍,并且在实际施工中取得了良好效果. [关键词]隧道工程:通风;风压;设计;施工技术 [中图分类号]U459 [文献标识码]A [文章编号]1002-8498(2014)19-0106-04 Application of Pressed Ventilation Technology in Construction of Jiaozhou Bay Subsea Tunnel Xu Yibiao Jiangxi Traffic Engineering Consulting Supervision Center Nanchang Jiangxi 330008 China) Abstract:Rock drill blasting and loading in long tunnel construction will produce large amounts of dust and gas ventilation is a difficult technical problem to overe.Based on the analysis of engineering environment of long tunnel construction bined with the construction of ventilation this paper introduced the air volume and air pressure calculation layout of ventilation system and technologies for improving the ventilation in detail.Good effect is obtained in engineering practice. Key words:tunnels;ventilation;wind pressure;design;construction 1工程概况 55m的回头曲线处设置1号竖井(直径1.5m、深 青岛胶州湾隧道工程是一项规模宏大的跨海 14.5m) 1号通风竖井设置抽出式通风(G4- 工程,设双向双洞6车道.隧道部分采用3孔隧道 73N0.10D 最大流量60533m3/h) 缓解服务隧道 形式穿越海域,两侧为主隧道,中间1孔为服务隧 回头半径小的排烟困难问题,改变施工作业环境. 道.第1施工合同段主要有进口服务隧道和左线 根据通风状况分析与工期安排,本合同段通风 2845m 合同段内无左线洞口,且服务隧道进口由 设计按4个阶段进行. 东向北以半径为55m的回头曲线上跨左线主隧道 2.1第1阶段 再进入海域的设计方式.另根据总体工期目标,本 开工至2号竖井施工完成,服务隧道进口独头 合同段安排3个专业队伍负责施工,前期服务隧道 掘进与利用右线斜井施工服务隧道,共2个通道口 施工须通过右线斜井施工且主隧道要利用服务隧 出碴.该阶段主要采用...
施工技术 2011年2月 64 CONSTRUCTION TECHNOLOGY 第40卷第4期 卸料平台施工事故成因统计分析 赵挺生,王欣,唐菁菁,刘显智 (华中科技大学土木工程与力学学院,潮北武汉430074) [摘要]采用统计分析方法,应用现代安全管理理论,对我国近年发生的86例典型卸料平台施工事故进行研究. 首先从时间、地区、项目性质3方面对案例的分布进行统计,面后通过对伤害方式、时间特性和生命周期等特征的 统计分析,总结得出卸料平台施工事故的主要原因及主要诱因,最后提出关于加强安全管理的针对性建议. [关键词]卸料平台;事故:统计分析对策研究 [中图分类号]TU71;X92 [文献标识码]A [文章编号]1002-8498(2011)04-0064-03 Statistical Analysis of Construction Accidents for Unloading Platform Zhao Tingsheng Wang Xin Tang Jingjing Liu Xianzhi School of Cisil Engineering Mechanics Huazhong Unisersity of Science and Technology.Wuhan Hubei 430074 China). Abstract:Based on the theory of modern safety management bined with the recent 86 typical accidents in our country authors analyze the construction accidents for unloading platform with statistical analysis method.The accidents are statistically analyzed on the time area and project characteristic. Through the statistic analysis on accident styles time characteristic and life cycle the main reasons and inducements are summarized.Finally authors put forward corresponding advices to strengthen the safe management. Key words:unloading platform;accident;statistical analysis;countermeasures 卸料平台是建筑施工现场常见临时施工设施,如下:①发生时间2000一2003年20%;2004一 是楼层与地面、楼层与楼层之间材料、设备的垂直运2006年44%;2007-2009年36%.②发生地区 输转运平台1.由于使用频繁,安装位置不断变东部44%;中部事故比例26%;西部30%.③项目 化,造成其安全风险较高.近年来,施工现场卸料平 性质住宅70%;公共建筑30%. 台事故时有发生,建筑施工过程与卸料平台相关的2卸料平台施工事故特征统计分析 伤害事故成因的研究,对于控制卸料平台使用过程2.1伤害方式 事故的发生具有重要的现实意义. 统计表明,卸料平台事故伤害方式主要为高处 从20世纪六七十年代开始,国内外学者对包括坠落和物体打击.前者占被调查事故总量的87%,...
施工技术 2013年8月上 74 CONSTRUCTION TECHNOLOGY 第42卷第15期 D0:10.7672/8gj2013150074 冶金工业厂房屋架在不停产条件下加固技术研究 郑育新 (四川建筑职业技术学院土木工程系,四川德阳618000) [摘要]冶金工业厂房屋架出现安全隐患时,应进行加固处理,按以往常规方法,加固施工必须从地面往上搭设脚 手架,脚手架阻挡了车间内吊车的水平运行,迫使厂方停产加固,从而造成巨大的经济损失.采用预应力桁架式脚 手架技术,加固施工用脚手架不从地面上搭设,也不将脚手架荷载作用于有安全隐患的屋架上,施工期间不影响吊 车的正常运行,保证了厂方的正常生产. [关键词]加固;脚手架;预应力;施工技术;安全 [中图分类号]TU746.3 [文献标识码]A [文章编号]1002-8498(2013)15-0074-04 Research on Roof Truss Reinforcement of Metallurgical Factory Buildings Without Stop Manufacturing Zheng Yuxin Department of Ciwil Engineering Sichuan College of Architectural Technology Deyang Sichuan 618000 China) Abstract:The roof truss of metallurgical industry building should be reinforced in case of any potential safety hazard.The conventional method specifies that the scaffolds must be erected from the ground for the reinforcement construction resulting in that the scaffolds block the way of horizontal running of crane in the workshop and the manufacturer is pelled to suspend the production with subsequent enormous economic loss.However if using prestressing truss scaffold neither the scaffolds used for reinforcement will be erected from the ground nor scaffold load will be exerted on the roof truss with potential safety hazard through which the normal running of crane will not be influenced and further the normal production of the manufacturer can be guaranteed. Key words:reinforcement;scaffolds;prestressing;construction;safety 一些大型冶金工业企业的单层工业厂房跨度难题. 大,使用时间较长.以往屋架要进行加固,必须从1工程概况 地面上搭设施工脚手架,而施工脚手架必将阻止车 四川川投峨眉新银江铁合金有限责任公司一 间吊车梁上吊车的运行,且妨碍车间地面正常生 分厂7 8 9 10号炉厂房,因厂房建筑一次偶然的局 产,厂家只能停产进行加固施工,造成巨大的经济 部坍塌事故,屋架已出现许多影响结构安全的问 损失.不停产加固要求施工时脚手架不能从车间 题,勘察鉴定后发现因厂房已使用33年,且车间内 地面上搭设,也不能把脚手架支承于已有严重安全现场腐蚀性介质和高温影响,几乎屋架均已出 隐患的大跨度屋架上,这是一项特殊的技术难题.现顺筋裂缝,混凝土保护层爆裂脱落,钢筋锈蚀,许 为解决这一技术难题,保证加固施工期间厂家能正 多屋架腹杆四边混凝土保护层均爆裂脱落,钢筋全 常生产,经多次到现场勘察,收集各种相关资料,并 部外露,压杆截面大大缩小,甚至个别腹杆截面缩 经过潜心研究试验,设计出1套“预应力桁架式脚 小后混凝土压酥,钢筋压屈,构件错位,证明屋架厂 手架”系列.该系列脚手架技术先进、科学,易于操房已存在严重安全隐惠,要求立即进行加固处理. 作、监控,安全系数大,解决了冶金工业厂房屋架在 该厂房为3跨冶炼车间,每跨跨度均为18m 柱 不停产的条...
[关键词】隧道工程;黄土地区;施工技术:监测 【中图分类号】U459.1 [文献标识码】A [文章编号]1002-8498(2014)13-0107-04 WuFazhan',ZhangXianwei² (1.ChinaRailway Tunnel Group Co.,Lad.,Luoyang,He'nan471009,China;2.ProjctManagement Abstract;Loess soil strength is low,and its supporting capacity is small, in order to prevent the emergence of loesstunnel collapse and other accidentsthree-stpaside core soilmethodwasadopted in Xingwangmao tunnelV Class loess area,artificial picks with mechanical excavation to minimize the rock disturbance of the surrounding rock.Treatment measures as blocking bined with drainage were adopted to reduce the impact on the construction of groundwater.Monitoring and measurement were the guidance in construction management. Control measures for tunnel deformation were made, and rapid construction methods were adopted to make timely closure ring section and effectively control setlement. Key words;tunnels; loess area; construction; monitoring 0引言 的,及时对围岩进行封闭。
施工技术 2015年3月上 32 CONSTRUCTION TECHNOLOGY 第44卷第5期 D01:10.7672/8gjs2015050032 先置式无承台塔式起重机基础在大型 深基坑工程中的应用 李迥 (舜元建设(集团)有限公司技术中心,上海200050) [摘要]以杭州某深基坑工程塔式起重机基础为例,简要介绍了先置式无承台塔式起重机基础的特点与优点,结合 工程实例,重点介绍了其设计、施工与质量控制措施要点,并对该技术实际的应用效果、经济效益以及应用前景等 进行了总结. [关键词]建筑机械;深基坑;塔式起重机;基础;施工技术 [中图分类号]TU753;TH213.3 [文献标识码]A [文章编号]1002-8498(2015)05-0032-04 The Application of First Installed Tower Crane Foundation Without Pile Cap for Deep Foundation Excavation Engineering Li Jiong (Technology Center of Sunyoung Construction Group)Co.Lid.Shanghai 200050 China) Abstract:Based on the tower crane foundation of some deep foundation excavation engineering in Hangzhou this paper briefly introduces the characteristics and advantages of first installed tower crane foundation bined with the engineering example emphasizes on the key points of design construction and quality control and summarizes actual application effect of the technology economic benefit and application prospect and so on. Key words:construction equipment;deep foundation excavation;tower cranes;foundations;construction 0引言 上19层,地下2层(含架空层),建筑高度为70.3m. 随着现代城市建设的发展,有限的土地资源与 本工程地上部分:裙房(社区教育中心和食堂、后勤 人民日益提高的生活条件的矛盾日趋突出,使得城 办公)4层,主楼分行政教学楼17层、实验实践楼19 市地下空间的开发建设日趋增多.像北京、上海、层.建筑结构形式为钢筋混凝土框架剪力墙结构, 广州等特大城市涌现了大量的地下建筑,如地铁车 基坑面积约10000m2 本工程地理位置显赫,处于 站、大型地下商场、地下停车场或人防工程等.地 杭州市中心繁华的教工路边,东南边是高档小区, 下建(构)筑物的施工一般所需要的钢筋等材料数 西边是繁华的教工路,北边是原电教大楼.如塔式 量相对较大,垂直运输较为突出,为了解决垂直运 起重机安装于基坑边,势必对周边环境造成很大影 输,塔式起重机成为其中垂直运输工具的首选.地 响,因而必须置于基坑内. 下工程施工中塔式起重机基础是其中的主要难点, 2塔式起重机基础设计 本文提出了一种先置式无承台塔式起重机基础施 先置式无承台塔式起重机基础设计包括工程 工方法,主要介绍先置式无承台塔式起重机基础在 桩、钢格构柱、钢格构柱顶封头钢板及格构柱体系 大型深基坑工程中的应用. 加固等内容,具体设计要求如下. 1工程概况 2.1工程桩 浙江广播电视大学杭州教工路校区改建工程 根据预安装的塔式起重机型号、安装高度及附 建筑面积55390m2 其中地下面积为14000m2.地 墙分布进行塔式起重机荷载计算及确定桩心距,结 [作者简介]李避,工程师,E-mal:asklin001@163 合场地地质勘察报告,按照《建筑桩基技术规范》 [收稿日期]2014-05-19 JGJ94一2008进行桩基承载力计算,并进行钻孔灌 万方数据 2015No.5 李通:先置式无承台塔式起重机基础在大型深基坑工程中的应用 33 注桩设计.结合目前塔式起重机基础节的尺寸及钢 台),改用焊接封头厚钢板,减小了塔式起重机基础, 格构柱的情况,选用d800mm钻孔灌注桩. 自重,节约了大量施工成本,减小塔式起重机基础 2.2钢格构柱 对地下结构施工的影响,方便了地下结构的施工. 根据钻孔...
[关键词】信息管理;建筑施工;传感器;应用 [中图分类号】TU712【文献标识码】A[文章编号】1002-8498(2014)04-0049-06 Application andResearch onInformation Technology in Construction Management Yang Jun (Department of CivilEngineering,Northwestern Polytechnical University,Xi'an,Shaanxi710072,China) Abstract;The information technology based construction management has been studied intensively recent years. Its goal is to apply information technology in construction management for automatic construction surveillance, control and evaluation. Taken construction as a conversion from inputs such as labor, materials and machines to output such as building,a prehensive literature review on intelligent construction management was given from two aspects of real time construction input surveillance and automatic output evaluation.Five different technologies, including RFID,UWB, CPS,vision and laser scanner were introduced in detail together with their applications in construction management.Then future directions were envisaged. Key words:information management; construction; sensors; application 0引言近年来,利用先进的传感器技术进行施工现场 建筑施工是涉及工人、设备、建材、环境等多种信息采集,实时监控施工过程,自动评估施工产出 因素的时空演变过程。
[关键词]信息化;工程项目;施工技术;信息平台 [中图分类号】TU714[文献标识码】A[文章编号]1002-8498(2013)17-0030-04 ComprehensiveApplicationofInformationTechnologyatConstruction Stage of Guangzhou PZB1401 Project Zhang Yigong,Li Xuejin,Huang Yongping (China Overseas(Shenzhen)Construction Co.,Ltd.,Shenzhen,Guangdong 518057,China) Abstract: Technology,safety and munication as three difficult problems are encountered at construction stage of the Guangzhou PZB1401 project because of its own characteristics. This paper describes the prehensive application of information technology in the three problems respectively and summarizes the application situation. Furthermore, it looks into the future of applications and expansion prospects of information technology in the construction process of the project. Finally, the authors introduce a set of multiple information applications like technology,safety,munication and so onfor one project integrated information platform to strengthen the omnibearing,programmed and meticulous management of the project.
传统的管理体制因为效率低、层次杂乱、信息间建筑业信息化发展的总体目标,重点是加快BIM 交流不畅而导致经济损失,据调查,在工程建设项和基于网络的协同工作等新技术在工程中的应用, 目的损失中,3%~5%是因为信息失误而导致特别强调了BIM、协同设计、移动通信、无线射频、虚
了虚拟仿真施工技术、高精度自动测量控制技术、但是,我国建筑业信息化率仅约0.027%,与国 施工现场远程监控管理及工程远程验收技术、工程际建筑业信息化率0.3%的平均水平相比,差距高 项目管理信息化实施集成应用及基础信息规范分达11倍。