[关键词］地基；软土；桩基础；管桩；质量控制；纠偏 [中图分类号】TU758.11【文献标识码】A[文章编号】1002-8498（2017）01-0018-03 ResearchandApplicationofPrestressedPipePileConstruction QualityControlUnderUltra-deepSoftSoilFoundation Li Songyan'，Liang Sen²，Wang Bin²，Zhang Ming² (1.China Construction Fourth Enginering Division Co.，Ltd.，Guangzhou,Guangdong510665,China; 2.TheFirst Construction Co.，Lid.of China Fourth Construction Bureau,Guangzhou,Guangdong510656,China) Abstract:Muddy soil has obvious effect of flow and shearing,which makes pile foundation engineering dificult. Furthermore, prestressed pipe piles are made deviated and broken easily. In this paper, the quality problems encountered in pile foundation construction in soft soil are illustrated on the base of the first residential district，and some treatment methods such as excavation by layer，deviation correction and PHC core grouting are given to deal with unqualified piles in order to reach state standard demand. Key words;foundations; soft soil; piles; pipe piles; quality control; deviation correction 0引言 预应力管桩由于其施工工艺简单、工期短、成 桩质量可靠等特点，被广泛应用于对工期要求较严 格的工业与民用建筑、路桥、码头等工程。
施工技术 2016年7月上 28 CONSTRUCTION TECHNOLOGY 第45卷第13期 D01:10.7672/js2016130028 超深块石回填地质条件下超长桩施工技术 胡刚，李欢，康鑫，彭先奇 (中天建设集团有限公司，浙江杭州310008) [摘要]依托重庆中航MyTown工程，针对超深中风化块石回填土质条件下超深钻孔灌注桩施工难题，通过对旋挖 钻机、钻头、钢护筒拼接等的改进优化，采用全回转钻机协同旋挖钻机、全钢护筒跟进施工技术，解决了回填地质条 件下40~80m柱的成孔、成桩技术难题. [关键词]桩基础；钻孔灌注桩；钢护筒；回填土：施工技术 [中图分类号]TU753.3 [文献标识码]A [文章编号]1002-8498(2016)13-0028-03 Construction Technology of Extra-long Bored Piles in Extra-deep Block Stone Filling Stratum Hu Gang Li Huan Kang Xin Peng Xianqi (Zhongtian Construction Group Co.Lad.Hangzhou Zhejiang 310008 China) Abstract:Based on Chongqing Zhonghang MyTown building project in view of the construction problems of extra-long bored piles in extra-deep block medium weathered stone filling stratum through the improvement of rotating drill bit and steel casing using the full-circle boring machine with auger drill work together and the technology of steel casing which solved the hard technological problem of 40 ~80 m pile in extra-deep block stone filling stratum. Key words:piles;bored piles;steel casing;back-filing;construction 1工程概况 土层渗透系数大，无法进行泥浆护壁，需采用干法 中航MyTown工程项目位于重庆市渝北区，地作业，且土层稳定性差，孔壁的稳定性难以保证，清 下1层，地上14~16层，6幢主楼，建筑面积约18 孔困难，选用合理的护壁措施是保证孔壁稳定的关 万m2.工程所处原地貌为1条深沟，上宽约80m 键技术. 深度约85m 剖面形状呈倒三角形，后采用周边开挖 3)土层块石含量大，且上部回填段存在大粒径 后的土石方进行回填，以中风化为主，最深处达 孤石，桩基施工时易引起钻进不进尺、孔倾斜偏移、 68.8m 经3年的沉降期.工程采用钻孔灌注桩基 发生卡钻等问题. 础，桩基共1105根，设计直径为1.0 1.2 1.5m 桩 4)块石回填地质条件下，旋挖过程中钻头的磨 长17~73m 其中超过40m的桩有333根，60m以上 损率较高，钻齿更换的频率对施工效率影响很大， 的有56根，均需穿过块石回填土层进入基岩持 合理优化钻头、降低钻头磨损率、提高破岩效率对 力层. 成本控制和工...
施工技术 2016年10月上 20 CONSTRUCTION TECHNOLOGY 第45卷第19期 D01:10.7672/sjs2016190020 超深地下连续墙护壁泥浆优化 赵民1，乌效鸣，吴迪1，魏林春2，王志华2 (1.中国地质大学（武汉）工程学院，湖北武汉430074； 2.上海隧道工程股份有限公司，上海200137) [摘要]武汉轨道交通7号线秦园路工作井采用地下连续墙支护结构，最大墙深59m 成槽过程中需要穿越最大厚 度达42m的粉细砂层，施工难度大.在研究地下连续墙护壁泥浆功能和机理的基础上，对现有泥浆配方以及泥浆 性能进行优化，以节约施工成本.采用多种措施对泥浆质量进行严格控制，以保证施工顺利进行. [关键词]地下工程：地下连续墙；泥浆：配合比：优化 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2016)19-0020-03 Cement Slurry Optimization of Ultra-deep Diaphragm Wall Zhao Min' Wu Xiaoming' Wu Dil Wei Linchun2 Wang Zhihua2 (1.Faculty of Engineering China University of Geosciences Wuhan Hubei 430074 China; 2.Shanghai Tunnel Engineering Co. Ltd.Shanghai 200137 China) Abstract:The diaphragm walls which the largest depth is 59 meters were used in the Wuhan Rail Transit Line 7 issue of Qinyuan Road well.It passed through a silt layer 42m thick and the construction was difficult.Based on the studies of the function and mechanism of protecting walls of cement slurry in the construction of diaphragm walls the existing slurry formulations were optimized to save construction costs. To ensure the successfully of construction some measures were adopted to control the quality. Key words:underground;diaphragm wall;slurry;mix proportion;optimization 0引言 围地基土的孔隙内部后，由于不再受到扰动而形成 在地下连续墙施工中，泥浆护壁成槽施工已经凝胶，并将槽孔孔壁表层一定范围内的土孔隙填 成为最主要的一种成槽方式，在泥浆护壁成槽施工 满，改变了土原有结构状态，加大了土体的稳定性. 中，泥浆质量的优劣是保证地下连续墙顺利施工及 2)形成槽壁泥皮优良的膨润土泥浆形成薄 质量的关键.武汉轨道交通7号线一期八标段秦园 而韧的泥皮，密度大，抗渗性高. 路工作井采用地下连续墙作为支护结构.地下连 3)静液压力的作用槽内的泥浆面通常高出 续墙厚1.5m 标准幅宽6m 墙体最大深度59m 在 ...
[关键词］建筑材料；灌浆料；拉拔试验；微观形貌；抗裂；性能 [中图分类号】TU52[文献标识码】A[文章编号】1002-8498（2016）12-0057-04 Super-earlyStrengthGroutingMaterialBondingPerformanceand Anti-crackingPerformance Test ZhangXiaoping'，ChenQian²，Sun Changzheng” (1.China Shandong Economic&Technical Cooperation Group Lud.Ji'nan,Shandong250098,China;2.Architecture Engineering Institute,Shandong ShenghanFinance andTrade Vocational College,Ji'nan，Shandong 250098,China; 3.Schoolof CivilEngineering,ShenyangJianzhuUniversityShenyang，Liaoning110168,China;) Abstract:The authors conducted a pull indoors test on 3 groups embedded steel test block and a parison prime reinforcementmaterial specimen，prehensive parative analysis showed that the strength and anchoragelength of the reinforcement materials are the important factors affecting the average bond strength of steel bars. The different steel bar embedment depth mainly showed three failure modes, pulled out of the steel bars，reinforced pull off，pull out while the roots of reinforced material uplift. Based on theory analysis，the author deduced the formula of the block average bond. Anti cracking performance parison of super-early strength grouting materials，not mixing admixtures grouting materials and mon concrete showed that certain dosage of admixture interaction and crack resistance of the fibers can significantly reduce itsplastic shrinkage cracking，cracking indexisrelatively small. Key words;materials;grouting material; drawing test;microstructure; anti-cracking;performance 钢筋混凝土结构的耐久性问题是工程界普遍试验，并着重研究了UHTCC的干燥收缩和早期抗 关注的一个间题，而水泥基材料的黏...
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...
[关键词]高层建筑；底板；灌浆；施工技术 [中图分类号】TU755.6[文献标识码]A[文章编号]1002-8498（2015）12-0032-04 Study onKey Construction,Technologyof Large-size GroutingofSuper-largeStructureSlab Shentu Huihong，Qu Haiyan，Zhu Hongbing，Zhao Siyuan， Shao Xinyu，Zhou Yanping （China Construction Steel Structure Co.，Ltd.， Shenzhen,Guangdong 518040,China) Abstract:The lager-size grouting technology of super-large structures is researched.The construction emphasis and difficulties of large-size grouting have been analyzed firstly，and then some construction technologies have been proposed. After that,a construction progress of large-size grouting has been concluded，, and used in the basement grouting of a super-large structure in Beijing. Key words:tall buildings; slabs; grouting; construction 0引言料施工技术的研究较为少见，仅有的文献也是针对 灌浆料是一类由水泥、外加剂和矿物掺和料等老旧工程维修加固等问题”，灌浆体量较小而难以 原材料按照一定的配合比形成的建筑材料"。
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°。