[关键词】深圳大运中心；单层折面空间网格；临时支撑体系；等比例卸载；等距离卸载；计算机同步控制 [中图分类号】TU758.11 [文献标识码]A [文章编号]1002-8498(2011)14-0005-04 Triangular GriddingStructurebyFoldingMethodinMain StadiumofShenzhenUniversiadeSportsCenter Ouyang Chao,Yan Xiaoxia，Chen Tao,Xu Cong,Ye Guangwei （China Construction Steel Structure Co.，Ld.，Shenzhen,Guangdong518040,China） Abstract;Based on the structure characteristics of single triangular gridding by folding method and the arrangement of temporary support system for the steel roof of main stadium ofShenzhen Universiade Sports Center， authors analyzed the effect of different unloading conditions on the structure. Considering advantages of equal proportional unloading method and equidistant unloading method,unloading Key words:Shenzhen Universiade Sports Center; single triangular gridding by folding method; temporary support system;equal proportional unloading method;equidistant unloading method;puter synchronization control system 1工程概况 深圳大运中心主体育场钢屋盖为马鞍形单层折 面空间网格结构（见图1），平面为285m×270m的椭 圆形，由20个相近似的单层折面单元组成，钢屋盖最 高点51.3m，悬挑长度51.9~68.4m，主体结构总用钢 量约1.8万t。
该结构仅由20个球支座支撑上部的单层折面 大跨度悬挑网壳，并立足于土建混凝土结构上。
这一 结构特征促使该屋盖施工期间使用了80个格构式临 时支撑胎架，使用使得钢结构卸载工程异常复杂。
图1钢屋盖与土建结构整体效果 Fig.1Architectural effect of steel roof and construction structure [收稿日期]2011-06-21 2卸载工况分析 [基金项目]中建股份科技研发课题（CSCEC3B-2009-15） 2.1临时支撑卸载顺序 【作者简介】欧阳超，中建钢构有限公司副总经理，教授级高级工程 师，江苏省靖江市江阴经济开发区靖江园区（二街）联心路214532， 2.1.1临时支撑胎架布局 电话：（0523）84693799,E-mail;oyc-888@163. 本工程共采用80个格构式支撑胎架，结构沿环 万方数据
6 施工技术 第40卷 向每圈布置20道临时支撑胎架，沿径向共4圈，从 每个杆件的应力重分布状况都是逐渐增大，而最终 外至内依次为背峰、背谷、冠谷和内环，如图2所示。
[关键询]火车站：组合梁；抗夸承载力：侧扭属曲；弹性感曲；局部稳定：分析 [中图分类号]TU318；TU375 [文献标识码]A [文章编号]1002-8498（2012)14-0117-04 Bearing Capacity and Stability Analysis for Steel-concrete CompositeBeams in ShenzhenNorthRailroadStation Wu Bing,Fu Xueyi,Meng Meili, Shao Jianwei, Liu Yuniang （The Iastitute of Architeture Design &Research Shenzhen Unisersity, Shenzhen,Guangdeng518060,China) Abstract:Analysis of flexural capacity and stability is important in the design of steel-conerete posite beams. Due to the constraint of concrete slab to the beam top flange, the stability of steel-conerete posite beam is diferent from free steel beams. The method adopted in the Code for design of steel structures GB50017-2003 considers instability by restricting the slenderness ratio about the beam wcak axis which takes no consideration for the effct of concrete siab.Therefore, It can not be adopted in the stability analysis of steel-concrete posite beams. In addition,local stability in the negative moment zone should be considered. In the Shenzhen North Railway Station project, GB50017-2003 and Eurocode 4 are adopted to analyze the flexural capacity and stability of steel-concrete posite beams. Apart from that, elastic buckling analysis was performed with finite element program SAP2000 to account for the instability problems mentioned earlier. This analysis ensured the structure security. Key words: railroad stations; posite beam; flexural capacity; lateral-torsional buekling; elasic buckling; local stability; analysis 0引言 梁在弯矩作用下的失稳仍采用普通自由梁工字钢 钢-混凝土组合梁是通过抗剪连接件将钢梁和 梁的稳定设计方法，没有考虑混凝土板对钢梁的约 钢筋混凝土板连接成整体共同工作的受弯构件。
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施工技术 2014年4月下 24 CONSTRUCTION TECHNOLOGY 第43卷第8期 D0I:10.7672/js20140800240024 深圳创业投资大厦斜交网格结构操作 平台设计及应用* 尤盛志，裴裕成，郭建辉，金桢国，郭松，李辉军 (中建钢构有限公司华南大区，广东广州510640) [摘要]近几年由于我国超高层建筑得到飞速发展，建筑钢结构呈现出复杂化和多样化特点，使得超高层建筑钢结 构的施工难度不断加大，因此针对此类钢结构施工，制作出一个安装简便、可调控式、安全可靠、拆除方便并可重复 使用的超高层操作平台尤为重要.主要介绍超高层斜交网格钢结构操作平台的设计和施工、节点的构造和安装技 术以及材料选择等技术要求. [关键词]钢结构；斜交网格；操作平台；设计 [中图分类号]TU758.13 [文献标识码]A [文章编号]1002-8498(2014)08-0024-04 Design and Application of Super High-rise Diagrid Structure Operating Platform in Shenzhen Venture Capital Building You Shengzhi Pei Yucheng Guo Jianhui Jin Zhenguo Guo Song Li Huijun Southern China District China Construction Steel Structure Co.Lid.Guangzhou Guangdong 510640 China) Abstract:With the rapid development of super high-rise building in China in recent years the building steel structure bees plex and various forms which increases the construction difficulties further more.For this kind of steel structure construction it is important for making a high-rise platform with easy installation and demolishing adjustable safety and reusable.This paper mainly describes the construction and installation techniques and material selection and other technical requirements of platform which is suitable for the diagrid structure building. Key words:steel structures;diagonal grid building;production platforms;design 1工程概况 深圳创业投资大厦位于深圳市高新区填海六 区01-11地块，地处南山区滨海大道与科园路交汇 处西北角.总用地面积5159.01m2 建筑规模约 93513m2 建筑高202.4m 总用钢量约1.1万t. 本工程钢结构主要分为地下3层框架剪力墙劲 性结构和地上方钢管混凝土交叉斜柱外筒钢筋 混凝土核心内筒混合结构.地下室钢结构由...
[关键词】深圳京基金融中心；钢结构施工；监测系统 [中围分类号]TU196 【文献标识码】A 【文章编号】1002-8498（2010）08-0136-05 MonitoringTechnologyofSteelStructureConstruction in Shenzhen Kingkey Financial Center Lu Jianxin'， Zhi Xudong²，Xu Hang', Liu Xiaobin',Zheng Liangfeng', Wang Huajie² (1. China Construction Steel Structure Co. ， Ltd. , Shenzhen, Guangdong 518040, China; 2.Schoolof Ciil Engineering，Harbin Institute ofTechnology，Harbin,Heilongjiang150000,China） Abstract;By simulation analysis for the whole construction process in Shenzhen Kingkey Financial Center， the monitoring contents are determined，which include temperature load， intermal force of ponent,and vertical displacement.Furthermore， the reasonable monitoring scheme for stress and strain, shrinkage and setlement displacement, temperature influence of key construction parts is established. Besides,the monitoring points setting，and selection, putting up on site, wireless data transportation for monitoring systems including sensor system, collection system, data analysis and storage system are described in detail. It is pointed out that the monitoring system is divided to thre phases to set up, and each phase includes device purchase and setting on site. Key words;Shenzhen Kingkey Financial Center; steel structure construction; monitoring system 1工程概况 筑C80混凝土。
施工技术 2010年11月 34 CONSTRUCTION TECHNOLOGY 第39卷第11期 深圳京基金融中心组合楼板滑移纠偏技术 陆建新，许航，刘晓斌 (中建钢构有限公司，广东深圳518057) [摘要]深圳京基金融中心宴会厅7层为组合楼板，由于原设计由无平面位移约束的盆式滑动支座承载，施工完成 后楼板发生滑移扭转.为了纠偏，现采用千斤顶同步顶升、滑移、扭转的施工方法，对组合楼板整体高空原位进行 校正，并采用有限元软件ANSYS建模并进行验算，从而确定施工中顶升高差数值，确保纠偏过程中无裂缝出现. 实践表明，此方法达到了预期效果且节约了成本. [关键词]组合楼板；同步；顶升；滑移；扭转；纠偏 [中图分类号]TU398.1 [文献标识码]A [文章编号]1002-8498(2010)11-0034-03 Technology of Rectifying Deviation for Composite Slabs Slippage in Shenzhen Kingkey Financial Center Lu Jianxin Xu Hang Liu Xiaobin China Construction Steel Structure Company Shenzhen Guangdong 518057 China) Abstract:The slabs of Banquet hall seventh-story in Shenzhen Kingkey Financial Center are posite slabs.Because the loads are beared by basin-shaped sliding bearings which haven't plane displacement constraints in original design slabs slippage and torsion take place after the construction finished.Authors use the method of jacks lift-up slippage and torsion synchronously to rectify the deviation and correcting posite slabs'integral altitude in-situ.Through finite element software ANSYS and checked conclusion the data of height difference about lift-up are determined and there is no new crack appearing in the process of rectifying deviation.It shows that this method has a expected effect and saves cost. Key words:posite slab;synchronous;lift-up;slippage;torsion;reetifying deviation 1工程概况 7层楼板 7层楼板 深圳京基金融中心A B座之间宴会厅7层为钢 B座 梁-压型钢板-混凝土组合楼板，东西向跨度34m 南北 A座 向距离30m 总重约600t 如图1所示.原设计由西侧 A座 B座 a平面 b立面 5个钢牛腿、东侧9个钢筋混凝土牛腿及...
[关键词]高层建筑；深基坑；混凝土；钢结构：模板 [中图分类号】TU974 [文献标识码】A [文章编号]1002-8498(2011)19-0010-05 ComprehensiveConstructionTechnologyofShenzhen King-key 100 Project Ran Zhiwei,Linghu Yan, Guo Yunlai,Liu Guangrong,Zhang Lei,Yang Shiwen （China Construction Fourth Engineering Division Co.，Lad.，Guangzhou,Guangdong 510665,China) Abstract:Authors introduce main construction technologies of Shenzhen King-key 100 Project, including the bracing technology of ultra large and deep foundation excavation， construction technology of ultra mass concrete slab with high strength，construction technology of ultra big dimension rectangle steel tube column， construction technology of steel structure of ultra tall buildings， the research of C120 ultra high property concrete and its application technology as well as the application technology of pushing-up formwork system in ultra tall buildings. Some measures are adopted to cancel inner support in foundation and obtain good effect.Top mode system is also adopted in core tube construction to ensure the progress, safety and quality. Key words:tall buildings; deep foundation excavation; concrete; steel structures; formwork 1工程概况 桩Φ500mm@300mm形成一道止水幕，减少地下 深圳京基100大厦（原称深圳蔡屋围京基金融 室施工期间基坑外地下水的大量涌入而影响地下 中心二期）位于深圳市罗湖区红宝路南侧，地下4 室施工。
[关键词】钢结构；空间双向倾斜；弯扭构件；深化设计 [中图分类号】TU391 [文献标识码】A [文章编号]1002-8498（2016)02-0021-05 TheDetailedDesignTechnologyofComplexSteelStructureforthe ZhaoYa'，Zhu Chong'，Sui Xiaodong'，Song Shiqun² （1.China Construction Ste Structure Co.，Ld.，Shenzhen，Guangdong 518040，China； 2.Wuhan Dunxin Steel Structure Design Co.，Lad.，Wuhan，Hubei 430074, China) Abstract:The epidermal stel structure system and twoindividual towers are set above thefirst floor of Contemporary Art Museum and City Planning Exhibition in Shenzhen，of which the epidermal steel detailed design for the epidermal structure，including modeling and drafting of the structural steel epidermal members，flexural-torsion members modeling，two-way inclined members drawing expression, and subdivision and workmanship for the epidermal structure，which shows the application of the Tekla Structures software and three-dimensional CAD technology in form of the plex steel structure engineering design. Key words:steel structures；bidirectional inclined members;flexural-torsionmembers;detailed design 1工程概况 深圳市当代艺术馆和城市规划展览馆（以下简 称深圳两馆）位于市民中心北侧，占地面积2.9万 m²，总建筑面积8.8万m。
2011年4月下 施工技术 第40卷第339期 CONSTRUCTION TECHNOLOGY 23 深圳万科中心预应力斜拉索施工程序优化 张琨，刘洪海，李强，刘献伟 (中建三局建设工程股份有限公司，湖北武汉430064) [摘要】深圳万科中心工程结构体系新颖，将斜拉索桥梁设计理念引入房屋建筑，通过采用斜拉索将竖向结构和2 层水平楼板相连，营造底层大空间的视觉效果.通过对预应力斜拉索房屋建筑结构施工程序优化，阐述新型房屋 结构体系的工况模拟、施工控制和变形监测. [关键词]斜拉索结构；逆作法；变形控制；工况模拟计算 [中图分类号]TU758.1 [文献标识码]A [文章编号]1002-8498(2011)08-0023-03 Optimization on Construction Process of Prestressed Cable-stayed Structure in Vanke Center Mansion in Shenzhen Zhang Kun Liu Honghai Li Qiang Liu Xianwei (China Construction Third Engineering Bureau Co.Lid.Wuhan Hubei 430064 China) Abstract:Vanke Center Mansion in Shenzhen uses cable-stayed bridge idea in building structure.The building uses cable to link the second horizontal floor and the vertical structure which can attain large space in the first floor.By optimizing construction process of prestressed cable-stayed building structure the authors show the construction simulating construction control and deformation monitoring. Key words:cable-stayed structure;top-down method;deformation control;condition simulating calculation 1工程概况 2施工中遇到的问题 深圳万科中心造型独特，地下1层，地上6层，2.1结构概况 高35m 连续总长600m 总建筑面积12万m2.将 万科中心工程由A B C区3部分组成，上部结 广泛应用在桥梁等大跨度结构的斜拉索技术应用于构为9个巨型筒体（边长约10m)及6片实腹厚墙、2 建筑工程，结构设计采用斜拉转换结构技术，在建筑处钢管混凝土柱群支撑起上部6层结构，底部形成 底部形成连续的大空间（见图1）.通过预应力拉索 连续的大空间.上部结构跨度25~56m 尽端纯悬 斜拉和首层钢结构，将上部结构的荷载成功转移到挑15-20m.因建筑物复杂且庞大，本文均以A4 竖向构件.上部建筑与地下室顶板间架空高度 区(4号简体一2号单片墙一悬挑区域)为例，本区 15.2m 底部空间跨度达56m. 域剖面如图2所示. 图1深圳万科中心效果 Fig.1 Architectural effect of Vanke Center 1046911000010000100001000010000...
施工技术 2017年4月下 20 CONSTRUCTION TECHNOLOGY 第46卷第8期 D01:10.7672/sgjs2017080020 深厚软土引孔嵌岩预制桩设计与施工技术 曾国，童华炜，曾志华 (广州大学土木工程学院，广东广州510006) [摘要]为解决预应力管桩不能适用于软硬突变的深厚软土地质条件的问题，结合珠海市某工程实例提出了引孔 嵌岩预制管桩的施工工艺，详细阐述了其施工与设计的方法，并分析了引孔嵌岩预制管桩的优点，为工程实践提供 借鉴. [关键词]引孔；嵌岩管桩；深厚软土；施工工艺 [中图分类号]TU447 [文献标识码]A [文章编号]1002-8498(2017)08-0020-04 Construction Technology and Design of Rock-socketed Pipe Pile with Prebored Hole for Deep Soft Soil ZENG Guo TONG Huawei ZENG Zhihua (School of Civil Engineering Guangzhou University Guangzhou Guangdong 510006 China) Abstract:To solve the problem that prestressed pipe pile can't be applied to the deep soft soil geological conditions which change from soft soil to hard rock directly the construction technology of rock-socketed pipe pile with prebored hole bined a project example in Zhuhai was put forward and its construction and design method was discussed the advantages of the rock-socketed pipe pile with prebored hole was analyzed in detail which provides reference for engineering practice. Key words:prebored hole;rock-socketed pipe pile;deep soft soil;construction 0引言 2桩型选择 深厚软土是珠江三角洲、福建、上海、江苏、浙 本工程拟建场强风化岩很薄，甚至有缺失，而 江等沿海地区工程建设中常遇的一种不良工程地 中砂层及可塑至硬塑黏性土层也不厚且仅是局部 质条件，一直以来都是工程建设界的一大地质难 分布，很多部位都是直接由软土层突变到中风化花 题.珠江三角洲地区的深厚软土区一般软土层以 岗岩.若采用预应力管桩，极易造成桩头损坏和断 下能作为持力层的土层缺失或不够厚.深厚软土 桩，且采用锤击打桩或静压工艺，预应力混凝土管 承载力较低且设计于深厚软土地质条件下的桩的 桩一般只可进入强风化岩层1~3m 而无法进入中 稳定性也往往难以满足.所以深厚软土地质条件 风化岩层，难以满足桩的承载力和稳定性要求.若 下的预制管桩经常会面临桩的承载力和稳定性不 采用灌注桩，施工工期长、造价高.综合考虑各方 足的两大难题. 面因素，本工程拟采用引孔嵌岩预制管桩. 1工程概况 引孔嵌岩预制管桩施工工艺是指采用凿岩机 珠海市某工程位于珠海市白藤二路北边，省道 引一个比设计桩径略大的孔（通常引孔直径比桩径 S272西边.建筑场地里拟建建筑物49栋，分别为 大5%)，并钻人基岩一定深度，而后向引好的孔中 别墅群（一期）、多层建筑物群（二期）、高层建筑物 灌人一定量的水泥浆，压入预应力混凝土管桩.本 群（三期）.本工程拟建场地软土层较厚，而强风化 工程以中风化花岗岩层作为持力层，桩型主要采用 岩层较薄甚至缺失，属于从软土层直接进入到中风 PHC400AB95 PHC500A125 设计嵌岩深度要求为 化层或微风化层的软硬突变地质，详细土层信息如 1m 桩长19~32m 预应力混凝土管桩混凝土强度 表1所示. 等级均为C80.采用引孔嵌岩预制管桩，将桩尖嵌 [作者简介]曾国，硕士研究生，E-mail:1291586509@q9.c0m 人中风化层一定深度，既能满足本工程的承载力要 [收稿日期]2016-04-25 求和桩的稳定性要求，又能保留预应力管桩单桩承 万方数据 2017No.8 曾国等：深厚软土引孔嵌岩预制桩设计与施工技术 表1土层信息 Table 1 The soil ...
施工技术 2012年12月下 26 CONSTRUCTION TECHNOLOGY 第41卷第379期 深厚软土地基沉井围护结构设计与施工 肖策 (天津二十冶建设有限公司，天津300301) [摘要]珠海横琴新区A号路污水泵站坐落在在深厚淤泥质地区，由于地基承载力和井壁侧摩阻力不足，常规大开 挖施工、地下连续墙施工和逆作法施工非常困难.采用石灰粉喷桩和高压旋喷桩加固软土地基，提高地基承载力 后进行沉井施工，工程质量和安全得到有力保证，顺利按工期要求完成沉井施工作业. [关键词]沉井；深厚淤泥；高压旋喷桩；石灰粉粉喷桩；承载力 [中图分类号]TU753.64 [文献标识码]A [文章编号]1002-8498(2012)24-0026-04 Design and Construction of Open Caisson Enclosure Structure in Deep Soft Soil Condition Xiao Ce The 20th Metallurgy Construction Company of Tianjin Tianjin 300301 China) Abstract:The sewage pumping station in Road A of Hengqin New City Zhuhai is situated in deep soft soil area.Because of poor load capacity of the earth and insufficient side friction along the sidewall of open caisson wells it is difficult to adopt the normal construction methods of big excavation underground diaphragm and up-down construction.During open caisson construction the soft soil earth was reinforced by lime dry jet mixing piles and high pressure jet grouting piles to improve its load capacity.The open caisson construction was pleted within the scheduled construction time with.The construction method also insures the engineering quality and safety. Key words:open caisson;deep silt;high pressure jet grouting pile;lime dry jet mixing pile; bearing capacity 1工程概况 沉积的流塑状淤泥.软土（地层代号③，，③）层厚 珠海横琴新区A号路污水泵站位于拟建环岛度11~13.6m 具有高含水量、高压缩性、大孔隙比、 北路AK3180南侧，地基处理面积约为 高灵敏度、低强度等特性，具流变、触变特征，淤泥 1663.2m2.场地地基大部分采用CFG桩进行软基 砂层厚0.5-1.0m;黏土、砾质性黏土层厚1.2~ 处理，设计桩身混凝土强度等级为C15 呈正三角形 2.8m.对工程建设不利的软弱土层，易导致基础沉 布置，间...
2016年7月上 施工技术 第45卷第13期 CONSTRUCTION TECHNOLOGY 67 D0I:10.7672/5js2016130067 深厚软土地区CM复合地基相互作用特性研究* 许少辉，张旭群1，袁炳祥2 (1.广州地铁设计研究院有限公司，广东广州510000；2.广东工业大学土木与交通工程学院，广东广州5100086) [摘要]通过ABAQUS有限元软件进行建模计算分析，研究了在含深厚软土地区，CM复合地基中C桩桩数和M桩 桩长的不同设置形式对该类型复合地基承载特性的影响.结果显示，在该典型地质条件下，桩桩数对地基沉降 量起控制作用，随着C桩桩数量的增加，C桩桩顶应力集中现象愈加明显，从而增大了C桩的荷载分担比例.随着 M桩桩长的增大，M桩桩土应力比及其荷载分担比例也随之提高，但影响程度较小，桩仍分担了较大比例的上部 荷载.此外，M桩的长度对地基沉降量的影响并不大.在进行工程设计时，桩的桩数可根据上部作用荷载的大 小及地基沉降要求进行合理布置，M桩桩长的选取需根据软土层厚度及地基附加应力场进行综合考虑. [关键词]地基：垃圾填埋场桩；深厚软土；CM复合地基；承载力；沉降 [中图分类号]TU753 [文献标识码]A[文章编号]1002-8498(2016)13-0067-05 Action Characteristic of CM Composite Foundation in Deep Soft Soil Area Xu Shaohui' Zhang Xuqun' Yuan Bingxiang (1.Guangzhou Metro Design and Research Institute Co.Ld.Guangzhou Guangdong 510000 China: 2.School of Civil and Transportation Engineering Guangdong University of Technology Guangzhou Guangdong 510006 China) Abstract:In this paper by using ABAQUS finite element analysis software for modeling analysis the role of the number of C-pile and the length of M-pile are studied in order to analyze their influence degree for CM posite foundation in the deep soft soil area.Results show that in this typical geological condition the number of C-pile is the most important factor for the settlement value of the CM posite foundation.With the of the number of C-pile increases the stress concentration phenomenon for the top of C-pile is mores obvious and it can increase the load sharing ratio of C-pile.With the length of M-pile incr...
2010年9月 施工技术 第39卷第9期 CONSTRUCTION TECHNOLOGY 85 深厚软土中高桩承台塔式起重机基础稳定性分析 王辉，管昌生2，李鹏2，张喜2 (1 中慢建筑第三工程局有限公司，湖北武汉430042：2.武汉理工大学土木工程与建筑学，湖北武汉430070) [摘要]从塔式起重机整体抗倾覆稳定、塔基承台稳定、桩基稳定和桩自由端整体稳定4个方面对高承台塔式起重 机基础的穆定性进行了分析，并针对此类塔式起重机在武没万达广场项中的应用，通过理论分析和MDAS有限 元分析件模拟，得出风载等水平荷戴以及基悦底部土体的抗侧移力对高承台塔吊基础的稻定性具有决定性 作用，而基础承载力和坚沉降变形一般都能够满足要求. [芙键词]塔式起重机基础：深厚土：高承台雄：稳定性 [中分类号]TU61:TU433 [支献识码]A [支章编号]1002-8498(2010)09-0085-04 Analysis on Stability of Tower Crane Foundation with Elevated Pile Foundation in Deep Soft Soil Wang Hui' Guan Changsheng Li Peng2 Zhang Xi2 (1.China Construction Third Engineering Bureau Co. Lid. Wuhan Hubei 430042 China: 2.Ciril Engineering Architecture School Wuhan University of Technology Wuhan Hubei 430070 China) Abstract:The stability of tower crane foundation with elevated pile foundation is analyzed by researching on anti-overturning stability of the whole tower crane stability of pile cap and pile and the overall stability of the free end of four piles in foundation with elevated pile foundation.Based on tower erane in Wanda Plaza projeet in Wuhan by theoretieal analysis and finite element analysis with MIDAS it indicates that wind loads and other horizontal loads as well as the anti-sway capability of bottom soil in foundation excavation play a decisive role in the stability of the foundation while foundation bearing capacity and vertical settlements deformation can generally meet the requirements. Key words:tower crane foundation:deep soft soil:elevated pile foundation:sta...
施工技术 2016年7月上 18 CONSTRUCTION TECHNOLOGY 第45卷第13期 D0I:10.7672/5js2016130018 深厚硬岩钻孔灌注桩大直径潜孔锤成桩综合施工技术 尚增弟，王晶，雷斌，李红波，叶坤，左文荣，宋明智 (深圳市工勘岩土集团有限公司，广东深圳518026) [摘要]深厚硬岩地层施工钻孔灌注桩时，采用传统成孔技术施工易出现无法钻进、施工效率低等现象，普遍存在 入岩困难问题.在综合分析潜孔锤钻机和旋挖钻机各自施工优势的基础上，提出了采用改进的120mm大直径 潜孔锤配合旋挖钻机的综合施工技术，具有硬岩钻进速度快、成桩质量好的特点，并对其工作原理、施工工艺流程、 技术特点进行了深入研究. [关键词]桩基础；钻孔灌注桩；深厚硬岩；大直径潜孔锤；施工技术 [中图分类号]TU753.3 [文献标识码]A [文章编号]1002-8498(2016)13-0018-04 Comprehensive Construction Technology of Large Diameter DTH Hammer in Deep Hard Rock for Bored Pile Shang Zengdi Wang Jing Lei Bin Li Hongbo Ye Kun Zuo Wenrong Song Mingzhi Shenzhen Gongkan Geotechnical Group Co.Ld.Shenzhen Guangdong 518026 China) Abstract:For deep hard rock formation the traditional construction technology has problems of unable to drill low efficiency and difficult in entering the rock.In the prehensive analysis of DTH hammer drill and rotary digging pile drill based on the respective advantages in construction this paper puts forward prehensive construction technology of improved large diameter hammer and rotating drill with characteristics of hard rock drilling speed and good quality and lucubrating its working principle construction process technical characteristics. Key words:piles;bored piles;deep hard rock;large diameter DTH hammer;construction 0引言 挖钻机清孔捞渣、成桩.经实际工程检验，此项综 随着大城市建设快速发展，近年来深圳地区基 合施工技术具有施工速度快、成桩质量好、安全可 坑开挖深度超过20m的建筑工程越来越多，钻孔灌 靠、降低施工成本等优点，适用于深厚硬岩地区的 注桩入岩成为十分普遍的现象，特别是在基岩层埋 钻孔灌注桩成桩施工. 深较浅地区，钻孔桩的入岩深度越来越大.在厚硬 1工程概况 岩地区单一采用冲孔桩、旋挖钻机施工时，成孔过 1...
施工技术 2015年7月上 60 CONSTRUCTION TECHNOLOGY 第44卷第13期 D01:10.7672/sgis2015130060 深厚砂层及卵砾石层中成槽的TRD工法挖掘液 配制方法与应用 褚立强 (上海智平基工程有限公司，上海200060) [摘要]利用膨润土配制的挖掘液泥浆适用于黏性土、粉质土层中的TRD工法成槽，经过改进后的挖掘液配制方法 更适用于以砂层及卵砾石层为主的地层内成槽施工.结合工程实例，详细介绍了以黏土（颗粒度调整材料）代替膨 润土的挖掘液配制计算方法.实践证明，在TRD工法施工过程中，该种以颗粒度调整材料配制的挖掘液在深厚砂 层和卵、砾石地层为主的地层中有良好的适应性. [关键词]地下工程；TRD工法；颗粒度；砂层；卵砾石层 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2015)13-0060-04 Digging Fluid Preparation Method and It's Application of TRD Method in Deep Sand and Gravel Layer Chu Liqiang Shanghai Zhiping Foundation Engineering Co.Ld.Shanghai 200060 China) Abstract:Digging fluid prepared by bentonite is used for TRD method in cohesive soil and silty soil.The improved method is more suitable for sand and gravel layer.Based on engineering practice this paper mainly introduced calculation method of digging fluid preparation using cohesive soil instead of bentonite. Engineering practice shows that this improved digging fluid is suitable for TRD method in deep sand and gravel layer. Key words:underground;TRD method;granularity;sand layer;gravel layer 0引言 侧为长江，本工程地下室边线距离长江堤岸最近处 武汉长江航运中心大厦暨民生路长航小区扩 仅约60m 已经进入堤防保护线5~6.5m. 建工程基坑围护采用地下连续墙和TRD工法止水 沿江大道下分布有电力、光纤、电信、路灯、给 帷幕，基坑开挖深度18.9~22m 局部开挖深度排水等管线.红线内场地西北侧分布1幢14~16 28.9m.本工程地层中含砂量较大，其中纯细砂（铁 层保留居民楼，距离本工程地下室10~14m 在基坑 板砂)层厚度约20m 中细砂夹卵砾层厚度3~4m、1倍开挖深度范围内，采用的预制桩桩端标高 其余地层内含砂量亦较大.参考国内外相关施工7.400m(相对本工程±0.000为-18.700m) 本工 经验，采用了以优质黏性土代替膨润土的挖掘液配 程基坑普遍开挖深度-18.300m 开挖面位于其桩 制形式，改善了挖掘液悬浮砂颗粒的性能，减小了 端以上400mm. 施工推进的阻力，取得了较好的效果. 2工程地质条件 1工程概况 地...
2017年1月下 施工技术 第46卷第2期 CONSTRUCTION TECHNOLOGY 39 D0I:10.7672/5gj82017020039 深厚砂夹卵石复杂地层深孔大直径钻孔桩施工技术 杨齐海，张春新 (中铁大桥局集团有限公司，湖北武汉430050) [摘要]以蒙华铁路公安长江公铁两用特大桥为典型实例，介绍了4号主塔墩基础钻孔桩施工技术.该墩基础采 用36(2.8-3.1)m变直径钻孔桩，桩长90m 其下为很厚的砂夹卵石覆盖层，钻孔施工能否顺利穿过该层是本工 程的难点与关键.施工中选用大功率、高扭矩KPG3000型旋转钻机施钻，配备大管径吸泥机及时吸出大粒径钻渣. 采用“慢转速、少给进、勤给进”的低压钻进工艺，成功解决了钻进成孔难题. [关键词]桥梁工程；基础工程；主塔墩；钻孔桩；施工技术 [中图分类号]TU753.3 【文献标识码]A [文章编号]1002-8498(2017)02-0039-04 Construction Technology of Deep Hole Large Diameter Bored Pile in Deep Sand and Gravel Stratum Yang Qihai Zhang Chunxin China Railway Major Bridge Engineering Group Co.Lad.Wuhan Hubei 430050 China) Abstract:This paper introduces the construction technology of bored pile in the main tower of No.4 main tower which is a typical example of the Gongan Yangtze highway and railway bridge.The pier foundation applies 36 (2.8~3.1)m variable diameter drilling pile the pile length is 90m which is very thick sand cobble layer and drilling smoothly through the layer is the difficulty and key of the project.High power and high torque KPG3000 type rotary drilling rig equipped with suction machine is used to promptly suck large diameter drilling waste slag in construction of large diameter drilling.The low voltage drilling technology of slow speed small feeding and often feeding successfully cracked the drilling problem. Key words:bridges;foundation engineering;main tower pier;bored pile;construction 1工程概况 小一江陵江北) 公安（江）一心 1.1工程简介 蒙（西）华（中）铁路系国内首条煤运重载铁路， 2145m 公安长江公铁两用特大桥为其全线控制性工程之 一.大桥主桥采用...
工技术 2012年4月下 56 CONSTRUCTION TECHNOLOGY 第41卷第363期 深厚淤泥质土层中半逆作法基坑支护设计与分析 董利华，邢国然，刘有才，吉红波 (浙江中战建工集团有限公司，浙江绍兴312000) 【摘要]以绍兴好望大厦半逆作法工程为工程背景，考虑软土本构关系与结构空间效应，采用有限元软件PLAXIS 和ANSYS评估开挖过程中支护体系动态响应、基坑安全性以及环境影响，有效地解决了半逆作法基坑的支护结 构、支撑系统及变形预测等设计关键技术间题.监测数据表明基坑安全可靠，取得了较好的经济社会效益. 【关键词]地下工程：基坑；支护；淤泥质土；半逆作法；有限元分析 [中图分类号]TU753.1 [文献标识码]A [文章编号]1002-8498(2012)08-0056-05 Design and Analysis of Foundation Excavation Supports with Semi Reverse Construction Method in the Deep Muddy Soil Dong Lihua Xing Guoran Liu Youcai Ji Hongbo Zhejiang Zhongcheng Construction Group Co.Ltd.Shaoxing Zhejiang 312000 China) Abstraet:Considering soft soil properties and 3D structural effeets semi-reverse foundation excavation of Haowang Building in Shaoxing is analyzed by finite element analysis software PLAXIS and ANSYS.Then the dynamical response of foundation excavation supports is calculated and safe behaviors and environmental effects are obtained.Thus some key design problems as retaining system optimization and deformation predictions can also be effectively solved.Monitoring results show that the foundation excavation is safe and reliable meanwhile good economical and social benefits are gained. Key words:underground;foundation excavation;supports:muddy soil;semi reverse construction method;finite element analysis 1工程概况 一条水泥道路，道路下分布有市区污水总管和煤气 绍兴好望大厦是一栋集办公、营业及商业于一管线，与地下室外墙边线最近距离约2m 需要重点 体的高档写字楼，建成后为绍兴市城北商务地标建 保护. 筑.工程主体由一幢27层主楼、一幢27层附楼和2工程地质情况 3层裙房组成，地下室2层，总用地面积13831m2 根据业主提供的地质资料，基坑开挖深度影响 总建筑面积99468m2 总高度99....
2013年10月上 施工技术 第42卷第19期 CONSTRUCTION TECHNOLOGY 65 D0I:10.7672/sgjs2013190065 深厚富水圆砾层桩基础加固技术 牛建东，梁专明2，谭旭亮3 (1.北京交通大学土木建筑工程学院，北京100044；2.湖南省测设计院，湖南长沙410014； 3.中南大学土木工程学院，湖南长沙410075) [摘要]以实际工程为例，探讨了高压旋喷桩加固深厚富水圆碟层形成灌注桩桩端持力层的可行性，并对其加固效 果进行了现场检测.介绍了加固方案的设计，旋喷桩灌浆后承载力计算分析以及旋喷桩的质量控制要点.检测结 果表明，经过处理后的桩端持力层承载力满足设计要求. [关键词]地下工程；桩基础；加固；高压旋喷桩；圆砾层；检测 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2013)19-0065-03 Pile Foundation Reinforcement in Deep Rich Water Round Gravel Niu Jiandong' Liang Zhuanming Tan Xuliang' (1.School of Engineering Beijing Jiaotong University Beijing 100044 China; 2.Hu'nan Institute of Survey and Design Changsha Hu'nan 410014 China; 3.School of Civil Engineering Central South University Changsha Hu'nan 410075 China) Abstract:Based on engineering practice this paper discussed feasibility of the high pressure jet grouting pile strengthening bored pile foundation in deep rich water round gravel layer and its reinforcement effect is tested.This paper introduced the design of strengthening plan bearing capacity of jet grouting pile after grouting and its quality control points.Test results show that pile bearing capacity can meet the design requirements after reinforcement. Key words:underground;piles;strengthening;high pressure jet grouting pile;round gravel layer;detection 灌注桩有时因地质条件的复杂性，经常遇到桩利影响.根据勘察报告，场地内揭露地层自上而下 端承载力不足的情况，深厚富水圆砾层作为桩端持依次为：①杂填土稍密~中密、稍湿，主要成分为 力层就是其中的一种.富水圆砾层中地下水含量粉质黏土、砂砾土，硬杂质含量约占1%，揭露层厚 丰富，成桩困难且在成桩过程中基底原状地层遭到1.5~4.8m.②粉质黏土硬塑~坚硬，夹灰白色 破坏，给基础承载力带来不利影响，因而有必要对 条纹，具明...
2011年10月上 施工技术 第40卷第350期 CONSTRUCTION TECHNOLOGY 47 润华环球大厦深基坑支护方案优化 黄志强1，耿丽2，李效萌，杨春1 (1.中国地质大学（武汉）工程学院，湖北武汉430074； 2.华中科技大学土木工程与力学学院，湖北武汉430074) [摘要]以苏州润华环球大厦深基坑工程为研究对象，通过技术和经济比较合理的选择支护方案，并以Z_SOIL.PC 专业岩土程软件为工具，分析各工况下围护结构的受力变形特性及周围土层位移.结果表明，采取土钉墙和围护 桩二道内支撑的方案相对于围护桩三道内支撑方案在受力性能上差别不大，但是技术经济效益却很明显，对 于基坑支护的设计具有一定的指导意义. [关键词]地下工程；深基坑；支护；优化 [中图分类号]TU753 [文献标识码]A[文章编号]1002-8498(2011)19-0047-03 Supporting Scheme Optimization for Deep Foundation Excavation in Runhua Global Building Huang Zhiqiang' Geng Li Li Xiaomeng' Yang Chun' (1.Faculty of Engineering China University of Geosciences Wuhan Hubei 430074 China; 2.School of Civil Engineering Mechanics Huazhong University of Science and Technology Wuhan Hubei 430074 China) Abstract:Based on deep foundation project in Runhua Global Building in Suzhou authors make reasonable choice of support scheme by technologic and economic parison.They make analysis on bearing and deforming behavior of retaining structure and displacement of around soils under several working conditions with Z_SOIL.PC.The results show that there is little difference on the mechanical behavior between the scheme of soil nailing wall and fender piles with two layers of supports and the scheme of fender piles with three layers of supports.However the first scheme has brought the obvious technology economic efficiency which offers reference to foundation supporting design. Key words:underground;deep foundation;excavation;support;optimization 1工程概况 工车辆通过围堰跨相门塘出行. 1.1基...
2015年7月下 施工技术 第44卷第14期 CONSTRUCTION TECHNOLOGY 33 D0I:10.7672/8js2015140033 浦东金融广场0460C厚板柱十字-箱形 转换构件制作技术* 申屠辉宏，朱红兵，张建军，耿军军 (中建钢构有限公司，广东深圳518040) [摘要]在钢结构工程中，转换构件是由两种或多种常规构件搭配使用，以完成多种设计功能的特殊构件.依托上 海浦东金融广场项目，在深入研究并实践的基础上，重点介绍了Q460C超厚板十字形转箱形柱转换构件的加工制 作过程以及相关的焊接工艺. [关键词]高层建筑：钢板柱；转换构件；焊接；制作 [中图分类号]TU758.16 [文献标识码]A[文章编号]1002-8498(2015)14-0033-03 Q460C Thick Plate Column Manufacture Technology of Cross Shape Converting into Box Type of Pudong Financial Plaza Shentu Huihong Zhu Hongbing Zhang Jianjun Geng Junjun China Construction Steel Structure Co.Ld.Shenzhen Guangdong 518040 China) Abstract:Conversion ponent is the special one that is posed of two or more conventional mix of ponents in order to plete a variety of design features in steel structure projects.This paper relies on the Pudong Financial Plaza project in which the Q460C thick plates are extensively used.Based on the in-depth study and practice we will focus on the fabrication processes and the related welding technologies of conversion ponent which is from cross to box column. Key words:tall buildings;steel plate column;conversion ponent;welding;manufacture 1工程概况 浦东金融广场项目位于上海市浦东新区世纪 大道，东临南泉北路，西靠浦东南路，南贴商城路， 北近世纪大道，南侧的商城路下设有地铁9号线，北 侧的世纪大道下则有地铁2号线.项目包括3栋办 公楼以及1栋商业楼.此外，紧靠1号楼西侧在首 层有1栋单层公交终点站结构，其屋顶同时具备广 场的功能，具体效果如图1所示. 本工程钢结构主要分布于6个部分，T1塔楼， T2塔楼，T3塔楼，商业楼，公交枢纽，地下室.钢结 构总用量约5.4万t.其中，T2和T3塔楼为核心筒 框架结构体系，F16层以下结构形式一致，T2塔楼 图1工程效果 F16层以上仍采用普通柱梁结构体系，T3塔楼F16 Fig.1 The engineering effect 层以上外框向内收缩，形成由顶部钢拉杆拉设的吊 挂钢柱外立面.外...
[关键词]绿色建筑；绿色施工；投入成本；回收效益 [中图分类号】TU74 [文献标识码]A [文章编号]1002-8498(2015）21-0107-03 IntroductionoftheGreenConstructionCostsandBenefits Xu Ning,Tan Lixin，Fan Yilin (China Construction Fifih Engineering Division Co.,Lid.,Changsha,Hu’nan 410004,China) Abstract:In this article，some scientific management and green construction technology were applied in the Changsha Hexi Transport Hub project, including muck car washing water-saving measures，nock socket type branch die scaffold system material saving measures and air to heating equipment energy conservation measures.Moreover the parison of the green construction measures and traditional construction methods was carried out，and the construction technology，construction cost and benefit were also analyzed in order to explore the balance problems of some green construction application between input cost and recycling benefit. Key words:green buildings;green construction; input costs;recycling benefits 1工程概况 2.1渣土车冲洗节水措施 长沙市河西交通枢纽工程位于湖南省长沙市岳 本工程的土方开挖面积约5.2万㎡²，基坑深约 麓区望城坡（见图1），工程总建筑面积约31.5万㎡²，6m，土方施工阶段工期长，跨越长沙市的冬季和雨 工程总投资约28亿元，采用旋挖桩基础，框架剪力季，降水较多，且根据地质勘察报告可知地下水丰 墙结构。