2017年6月下 施工技术 第46卷第12期 CONSTRUCTION TECHNOLOGY 71 D0I:10.7672/8js2017120071 大型莲花旋转升降宗教剧场舞台施工关键技术 孙晓阳 (中国建筑第八工程局有限公司总承包公司,上海200135) [摘要]南京牛首山佛顶宫大型莲花全自动升降旋转舞台工艺设计和机械设备的配置满足了宗教剧场的演绎要 求,同时兼顾其他类型的演出.其舞台的成型工艺、空间定位及安装过程复杂.工程中所使用的钢丝绳传动升降 舞台、舞台环吊装置、舞台专用低噪声卷扬机、莲花瓣同步升降控制系统、水舞台不锈钢板无渗拼接技术、效果处理 等技术,提升了专业宗教剧场舞台设计和施工水平. [关键词]旋转提升:钢结构:安装:施工技术 [中图分类号]TU758.1 [文献标识码]A [文章编号]1002-8498(2017)12-0071-05 Construction Technology of Large Lotus Rotary Lifting Religious Theatre Stage SUN Xiaoyang General Contract Engineering Company China Construction Eighth Engineering Division Co.Ltd.Shanghai 200135 China) Abstract:Large lotus rotary lifting stage design and equipment configuring of Buddha Palace can meet the requirement of religious theatre and other shows.The molding technology location and installation process are plex.The key technologies such as wire rope transmission lifting stage stage ring hanging device low noise winch lotus synchronous lifting control system stainless steel plate seamless splicing technology effect treatment etc are applied in the engineering which improve the design and construction technology of religious theatre stage. Key words:rotary lifting;steel structures;installation;construction 1工程概况 械中无处不体现着佛教文化.莲花机械舞台直径 近年来,随着国家经济的持续发展、人们物质长达38,整个机械舞台可以升降、旋转、打开、合 生活水平的不断提高,旅游业发展迅速,以宗教文 拢,属于专业定制的宗教演艺舞台,舞台的成型工 化为主题的朝圣和旅游场所受到越来越多人的欢 艺、空间定位及安装过程复杂,是创新科技和艺术 迎,传统文化(儒、释、道、休闲文化)与旅游文化相 文化的智慧结晶.如图1所示. 结合的场所建设成为一种特色.作为宗教场所重 要功能设备的专业化剧场舞台,需要满足演出、会 议、展览等多种功能;不断复杂化、智能化、异形化、 大型化,也给施工技术的创新与...
[关键词]隧道工程;沉管法;连接段;端钢壳;混凝土支撑;防水 [中图分类号]TU7;U455 [文献标识码]A [文章编号〕1002-8498(2012)18-0113-04 KeyConstructionTechnologyofMainStructureforConnection SegmentinLargeImmersedTunnel (China Railway Eighteen Bureau Group Fise Company, Tianjin 300456, China) Abstract;Immersed method is adopted in construction of Haihe River Tunnel of Central Road in Binhai New Area, Tianjin.The connection section of the immersed tunnel is the main connection section for the immersed tube in the water and the land. Thus the foundation excavation is constructed in soft soil adjacent to river with large depth. Moreover the construction includes tube sections undocking, supports demolition and steel coffrdam construction, as well as the final joint construction and the supports re- installation. Key construction technology of main structure for connection segment in large immersed tunnel is researched to solve the dificulties of PC cables, end steel shell and end waterproof sealing doors in limit space of foundation excavation with several supports. The mentioned technology ensures construction quality and safety of the main structure. Key words:tunnels;immersed method;connection segments; end steel shells; concrete supports; waterproofing 天津市滨海新区中央大道海河隧道工程为天 3层结构,其中地下3层为行车通道,为“两孔三管 津市重点工程,属于城市主要干道,工程全长 廊”形式,地下2层主要为综合管廊、市政管线和设 4.2km,其中穿越海河255m,采用沉管工艺施工。
[关键词】隧道工程;沉管隧道;干坞;钢管桩 [中图分类号]TU473;U459.5【文献标识码】A[文章编号】1002-8498(2013)09-0020-04 Construction of AxisDry-dock in Large Immersed Tunnel Zhang Xingmei (The Sixth Engineering Division of China Railway 18th Bureau Group,Tianjin 300222, China) Abstract;The construction of Tianjin Haihe River Tunnel, which is the first large immersed tunnel in high seismic regions in China, adopted the axis dry-dock construction technology after construction scheme parison and consideration of the hydrologic geology condition and project situation.By research to the construction of the locking steel pipe piles of the axis dry-dock of the large immersed tube tunnel, the construction diffculties involved with large-diameter locking steel pipe piles were resolved, including hole-forming,waterproofing and hoisting.The construction process and key technologies for locking steel pipe piles are introduced in detail. The application results show that the technology of axis dry-dock construction technology is economic and reasonable. Key words:tunnels; immersed tunnel; dry-dock; steel pipe pile
1工程概况的南运河、漳河及卫河组成。
[关键词】隧道工程;沉管法;暗埋段;防水;施工缝;变形缝 【中图分类号】TU7:U455[文献标识码]A[文章编号】1002-8498(2012)18-0121-04 WaterproofingTechnologyofMainStructureforBuried Segment of LargeImmersed Tunnel Xiao Ganggang (ChinaRaiway EigheenBureu Group FieComany,Tianjin300456,China) Abstract: Waterproofing of underground engineering has been a topic of concern and it is the mon quality defects points in operation. Based on the construction of Haihe River Tunnel of Central Road in Binhai New Area, Tianjin, which is the first tunnel in high seismic intensity zone of China, the waterproofing design and construction for key joints are summed and researched including construction joints,deformation joints,surrounding structure crossing waterproofing layers and main structure wrapping waterproofing membrane. Key words:tunnels; immersed method; buried segment; waterproofing; construction joints; deformation joints
天津市中央大道海河隧道为天津市重点工程,2355m,施工规模大,防水施工意义重大,其暗埋段 属于城市主要干道,工程全长4.2km,其中穿越海河主体结构防水横断面如图1所示。
[关键词】钢结构;施工过程;监测;模型修正;评估 [中图分类号】TU393 【文献标识码】A [文章编号】1002-8498(2015)02-0068-07 TheResearchStatus ofConstructionMonitoringSystemin Large and ComplexSteel Structures LuoYongfeng',Ye Zhiwu',Wang Lei² (1.School of Civil Engineering,Tongji Universty ,Shanghai200092,China; 2.The Architectural Design and Research Institute of TongjiUniversity,Shanghai200092,China) Abstract;In order to keep the safety and smooth going of construction process, it is essential and important to conduct construction control.Construction monitoring is the key technology of the construction control system and the research contents of construction monitoring include improvement and development of monitoring instruments,monitoring technology,the determination method ofmonitoring parameters, the arrangement method of measuring points, data process method,model updating technology and early warning and assessment system. This paper introduces the development of constructiontheory and technology and theresearch status,and then pointsout the existing problems and the solving methods.Finally,some hot research subjects about construction monitoring system are summarized. Key words:steel structures; construction processing; monitoring; model updating; assessment 0引言 研究,具有重要的理论意义和实用价值,也是目前 随着社会经济的发展,体现现代建筑艺术的大 迫切需要研究并及时获得成果的热点课题。
[关键词】地下工程;水电站;大型酮室;锚索;施工技术 [中图分类号】TU753[文献标识码】A[文章编号】1002-8498(2017)01-0116-03 Key Technology Research and Application for Large Underground CavernAnchorCableConstruction Qi Jieyi',Wu Haitao', He Mingwu² (1.China Gezhouba Group Three Gorges Construction Engineering Co.,Ltd.,Yichang,Hubei 443002,China; 2.China Three Gorges Projet Corporation,Bejing 100038,China) Abstract : There are a mass of prestressing cables in the arch-crown and side wall of Wudongde left bank underground powerhouse. The application of traditional anchor cable construction method in drilling, putting anchorrope into the anchor hole is large interference,time-consuming,laborious and with high safety risk. The authors solved the problem by improving the equipment and innovating the products. Application of anchor cable construction of large cavern key technology can efectively improve construction efficiency and quality, reduce the construction cost and security risk. Key words:underground; hydropower stations; large underground cavern; anchor cables; construction 1工程概况 锚索长度33m/36m,锚索钻孔方向均垂直于开挖 金沙江乌东德水电站是金沙江下游河段(攀枝面,钻孔直径均为165mm。
施工技术 2015年7月下 30 CONSTRUCTION TECHNOLOGY 第44卷第14期 D0I:10.7672/8js2015140030 多腔体人字形组合柱加工技术 高如国,周喜,徐丹 (中建钢构江苏有限公司,江苏靖江214532) [摘要]天津现代城(二期)A地块B区项目为超高层核心筒-框架钢结构,酒店区各轴线之间的钢柱支撑于分岔的 人字形组合柱上,该人字形组合柱板厚大、腔体多、焊缝纵横交错,受力及变形均非常复杂,同时又是支撑整个上部 结构的关键,因此,该人字柱的加工质量、制作精度尤为重要.介绍了人字形组合柱的加工制作工艺,并从下料、组 装、焊接等工序进行了详细的阐述. [关键词]高层建筑;组合柱;支撑;多腔体;加工工艺 [中图分类号]TU758.16 [文献标识码]A [文章编号]1002-8498(2015)14-0030-03 Processing Technology of Multi-cavity Herringbone Column Gao Ruguo Zhou Xi Xu Dan China Construction Steel Structure Jiangsu Co.Ltd.Jingjiang Jiangsu 214532 China) Abstract:Tianjin Xiandai City(Phase I)lot A area B project is a super high-rise building using core tube-steel frame structure.The steel columns between each axis of the hotel zone are supported by the herringbone columns.The herringbone columns are multi-cavity and use thick plates whose stress features and deformation are very plex.As the key parts of the whole building the quality and accuracy of the herringbone columns are especially important.This paper elaborates the columns' fabrication process from blanking assembly and welding ete. Key words:tall buildings;posite columns;supports;multi-cavity;processing 1工程概况 天津现代城(二期)A地块B区项目总建筑面 积约25万m2 用钢量约3万t 主要由办公、酒店公 寓2幢超高层塔楼及商业裙房组成,其中办公楼地 下5层,地上68层,高338m;酒店地下5层,地上48 层,高209.65m 建成后将成为天津市地标性建筑. 该项目为超高层核心筒框架钢结构,酒店区各轴线 之间的钢柱支撑于分岔的人字形组合柱上,该人字 形组合柱板厚大腔体多、焊缝纵横交错,受力及变 形均非常复杂,同时又是支承整个上部结构的关 键,因此,该人字柱的加工质量、制作精度尤为重 要.本文将从优化结构类型、制定合理的装焊顺 序、加强制作过程中的焊接控制等方面,按照下料、 图1工程三维效果 组装、焊接等工序详细阐述多腔体人字形组合柱的 Fig.1 3...
施工技术 2010年10月 108 CONSTRUCTION TECHNOLOGY 第39卷第10期 多层木结构古建筑榫卯节点拼装技术研究 张少华,姬东2,朱俊2,覆仲明2 《1.苏州工业园区科技发展有限公司,江苏苏州215131; 2.苏州狮山建容装工程有限公司,江苏苏州215131) 要]在木传构古建筑中,建筑的损坏多数由样卵节点的破怀而引起的,园此木梅之间的和豆结至关童要, 传洗的施工方法是先确定节点方式再进行拼辈施工,以致不间的节点梅造给施工带集了困难.大阁程并没有 一味的遥束传镜,而是根据诚工程构造,先确定拼梨汇样的施流程,再根据不同构件的受力要,选相应的样 卵结构并德合现代传构技术和工艺,进样脱方便施工,又能提高构件的承我能力和整个木德构体系的定性. [芙键词]木构古建筑:拼装:样卵节点 [中受分类]TU759 [文披标识]A [立章编]1002-8498(2010)10-0108-04 Research on Installation Technology of Tenon and Mortise Joint in Multi-floor Timberwork Ancient Building Zhang Shaohua' Ji Dong2 Zhu Jun2 Qu Zhongming? (1.Suzhou Industrial Park of Science and Technology Derelopment Co.Lad.Suzhou Jiangsu 215131 China: 2.Suzhou Erjian Construction Group Co.Lsd.Suzhou Jiangsu 215131 China) Abstract:The damages of timberwork ancient building is often caused by damages of tenon and mortise joints.So the connections of timber ponent are very important.Traditional construction technology is to determine the joint form and then to install the joint.Because of different joint forms the traditional construction teehnology is very diffieult.But the construetion of Mantra Pavilion breaks the routine. According to the construction strueture the construction sequence of tenon and mortise joint installation is determined.Based on the bearing capacity of different members the corresponding tenon and mortise structure are bined with the modern technology which ensure the bearing capacity and stability of timberwork. Key words:timberwork ancient building...
[关键词]公路工程;路面;沥青玛蹄脂碎石路面;多孔玄武岩;上面层 [中图分类号]U416.2[文献标识码]A[文章编号〕1002-8498(2015)11-0074-04 StudyontheApplicationofPorousBasaltinUpperLayerof SMA Pavement Xu Ling,Li Wen (The Third Engineering Co.,Lad.of theFirst Highway Engineering Bureau of CCCC,Beijing 101102,China) AbstractPorous basalt aggregateisselected forSMA-13upper layer structure inNo.31contract section pe se q sdp nd d sujo construtionncldingmixdesignmixing,ransportationandpavingollingnconstrutionummaiz the construction process parameters and control points in the application of porous basalt in upper layer of SMA pavement. Key words;road construction;pavements;SMA pavements;porous basalt;upper layer 1工程概况表1粗集料试验结果 湖南醴茶31标路面上面层为SMA-13SBS改性Table 1Test results of coarse aggregate 沥青混凝土,路面宽11.25m,厚4cm,全长单幅试验项目各12号技术要求结论 58.2km,碎石为湖南省攸县多孔玄武岩,细集料为 玄武岩机制砂,木质素纤维为德国进口的颗粒状纤压碎值/%17.5-≤20.0合格
表观相对密度2.8652.876 维。
施工技术 2016年7月上 130 CONSTRUCTION TECHNOLOGY 第45卷第13期 D0I:10.7672/5js2016130130 多向可调节柔性连接式石材幕墙施工技术 杨军 (中铁建设集团有限公司,北京100040) [摘要]介绍了一种新的异形曲面石材幕墙施工技术,该技术运用多向可调节柔性背栓的多向可调节性,提高了异 形曲面石材的施工效率,异形曲面石材幕墙的外立面效果得以更好呈现. [关键词]幕墙:石材幕墙;柔性连接;施工技术 [中图分类号]TU767 [文献标识码]A[文章编号]1002-8498(2016)13-0130-05 Multi Direction Adjustable Connection Stone Curtain Wall Construction Technology Yang Jun China Railway Construction Group Co.Ltd.Beijing 100040 China) Abstract:This paper introduces a new type of surface stone curtain wall construction technology the technology used to adjust the flexible back bolt of the multi direction can be adjusted improved the construction efficiency of special-shaped curved surface stone irregular curved surface stone curtain wall facade effect can be better. Key words:curtain wall;stone curtain wall;flexible connection;construction 0引言 端开长条孔,通过不锈钢螺栓与竖龙骨连接.横龙 为解决传统异形曲面石材幕墙施工方法施工骨一端与角钢转接件焊接,中部及另一端用不锈钢 工期相对较长、施工作业条件约束较多、施工成本 螺栓与开长条孔的角钢转接件连接.通过竖、横龙 较大等难题,通过采用多向可调节柔性连接式异形 骨的柔性连接,最大程度避免石材幕墙龙骨因气温 曲面石材幕墙施工技术,摆脱了异形曲面石材幕墙 变化较大而产生变形,从而保证石材幕墙的安全性 对龙骨安装的高精度依赖,实现了石材单元的方向 及整体效果.异形曲面石材采用多向可调节柔性 可调,起到了提高工作效率、降低工程成本和提高 连接背栓结构通过石材挂件与横梁固定.多向可 板材安装质量的良好效果. 调节柔性连接背栓样式如图1所示. 本技术其核心工序为运用多向可调节柔性连 接式异形曲面石材幕墙施工技术对异形曲面石材 幕墙的立面图和效果图进行重新设计,绘制出满足 图1多向可调节柔性连接背栓 该技术要求的龙骨布置图和石材排版图,再进行现 Fig.1 Flexible connection back bolt 场龙骨安装和石材加工,通过特制的多向可调节柔 性连接式背栓实现龙骨和石材连接的技术. 多向可调节柔性连接背栓不但可以进行三维 1工艺原理 尺寸的调节(见图2),还可以全方位任意角度实现 多向可调节柔性连接式异形曲面石材幕墙在 石材板面与龙骨的柔性连接,而且还能吸收不同因 土建结构上预置埋板,埋件上焊接钢角码,用螺栓 素引起的变形应力.多向可调节柔性连接式石材 将[8竖龙骨固定,...
2015年9月上 施工技术 第44卷第17期 CONSTRUCTION TECHNOLOGY 29 D0I:10.7672/sgjs2015170029 复杂空间位置大尺寸拱肋节段直接起吊方法 张俊娟,李旭2 (1.杨凌职业技术学院交通与测绘工程学院,陕西杨凌712100; 2.中铁大桥局股份有限公司设计分公司,潮北武汉430050) [摘要]某钢箱拱结构中拱肋节段存在尺寸大、三向倾角的特点,采用缆索吊机施工时需完成节段翻身、空间角度调 整等过程.在对比总结已有起吊方法优缺点的基础上,改进缆索吊机的吊具及辅助部件,以使其适应空间角度调整 的需要,形成了适用于空间位置复杂的节段直接起吊方法.经验算,设计出的吊点、吊带符合相关规范的要求. [关键词]桥梁工程;拱桥;钢箱拱结构;吊装;应力分析;施工技术 [中图分类号]U445.4 [文献标识码]A [文章编号]1002-8498(2015)17-0029-04 Directly Hoisting Method Suitable for Large Size Arch Rib Segments with Complex Spatial Position Zhang Junjuan' Li Xu2 (1.School of Transportation and Surveying Engineering Yangling Vocational and Technical College Yangling Shaanxi 712100 China:2.Design Branch China Railway Major Bridge Engineering Co. Lad. Wuhan Hubei 430050 China) Abstract:Because of large size and three direction dip features of arch rib segment in one steel box arch structure the process of turning segments adjusting space angle and so on should be pleted by construction of cable crane.Based on the parison of advantages and disadvantages of existing lifting method sling and auxiliary ponents of cable crane are improved to make them meet the requirement of space angle adjustment and the directly hoisting method suitable for segments of plex spatial position is formed.The designed hanging point and sling are in accordance with relevant specification requirements by checking. Key words:bridges;arch bridges;steel box arch structure;hoists;stress analysis;construction 0引言 竖向 研究桥梁拱肋的截面形式为大尺寸钢箱,总体...
[关键词】地下工程;深基坑;支护;监测;施工技术 [中图分类号]TU753[文献标识码】A[文章编号]1002-8498(2013)13-0012-03 ConstructionTechnologyforaDeepFoundation ExcavationUnder ComplicatedConditions Zheng Ziguang,Li Lin,Cao Hong,Yang Shuhai,Ding Weiju (Chengdu Branch,China Construction Third Engineering Bureau Joint-stock.,Lad., Chengdu,Sichuan 610041,China) Abstract:A project was featured with plicated environment in limited operation space,which made the support design and the foundation excavation construction very difficult. Corresponding measures are adopted by coordination with related units for the engineering. Monitoring measures are adopted for the foundation excavation and surrounding buildings. Engineering practice shows that the foundation excavation is in a stable state, good effect is obtained. Key words:underground; deep foundation excavation; supports; monitoring; construction 1工程概况侧向补给,各地段富水性不一,无统一的自由水面。
2017年6月下 施工技术 第46卷第12期 CONSTRUCTION TECHNOLOGY 57 D0I:107672/8js2017120057 复杂环境中深基坑加固技术综合应用 王永华 (中铁建设集团有限公司,北京100040) [摘要]随着地下空间的不断开发,单一支护方法已难以满足复杂的基坑设计,而多种支护方式的综合应用已经变 得越来越普遍.以北京某深基坑工程为例,分析了深基坑支护结构发生较大位移、桩体开裂的原因,介绍了该深基 坑的原支护设计和加固所采用的支护方案.对加固处理后的监测数据进行分析,结果表明该深基坑支护设计方案 合理,满足要求. [关键词]深基坑;支护;加周;预应力错索;旋喷桩;施工技术 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2017)12-0057-04 Combined Application of Reinforce Technology in Deep Foundation Excavation WANG Yonghua China Railway Construction Group Co.Lid.Beijing 100040 China) Abstract:With the continuous development of underground space excavation the single and simple support form is difficult to satisfy the design of plex foundation excavation nowadays while the application of multiple support forms bee more and more popular in foundation excavation engineering.Based on a super-large deep foundation excavation in Beijing this paper analyzes the reasons of large displacement and pile cracks in super-large deep foundation excavation original support forms and reinforce support forms of deep foundation excavation including pile pre-anchor double-row piles long-span brace pre-lattice-anchor over-long chemical churning pile are introduced.Monitoring data analysis after reinforcement shows that the support forms are reasonable and meet the requirements. Key words:deep foundation excavation;supports;reinforcement;prestressed anchor;jet grouting pile;construction 0引言 移4.陈富强等[5经计算认为,坑内加固宽度可取 随着城市建设的高速发展,复杂地质条件及周06~08倍的铺桩嵌固深度,若再加大加固宽度对 边环境下的深基坑越来...
[关键词]改造工程;桩基础;拔除;全套管护壁拔除技术 [中图分类号】TU753 【文献标识码】A[文章编号】1002-8498(2013)03-0035-02 Application ofOldPilesExtractionTechnology Under ComplexEnvironment Feng Yonghong,Wang Jiahong,Yu Hong (Zhejiang No.1 Construction Group Co.,Lud.,Hangzhou,Zhejiang 310013, China) Abstract;Full-sleeve wall protection technology is a new technology to remove old piles in underground space. This technology is featured with simple operation,high efficiency,low construction cost and relatively noise, which means minimized influence to the environment. Based on an actual project, issues involved with the application of full-sleeve wall protection technology toremove old pilesunder plex environment are introduced including mechanical equipment,construction process and removal difficulties. Key words;reconstruction;piles; extraction;full-sleeve wall protection technology 1工程概况 碎消除法则是采用直接开挖的方式,利用镐头机、风 杭州国际大厦改造工程位于杭州市下城区体镐等破碎工具进行粉碎清障,该方法多用于原有桩位 育场路333号,地处杭州市中心繁华地段,周边建筑浅、数量少且有作业面保证的工程中。
[关键词]地下工程;障碍物;拆除;监测 [中图分类号】TU751.2 [文献标识码]A [文章编号]1002-8498(2013)07-0040-03 TreatmentofLargeUndergroundObstaclesinComplicatedEnvironment Wang Qian',Cheng Gang²,Ke Bumin',Li Hongwei (1.Zhejiang Greatwall Construction Group Co.,Ltd.,Hangzhou,Zhejiang 310016,China; 2.HangzhouConstructionEngineringQuality SupervisionOfice,Hangzhou,Zhjang310012,China) Abstract;A new building was built on the site of an original building.Within the site,parts of the basement structure and enclosures were not removed yet before the start of the new construction. Construction of foundation for the newbuilding and removal of the obstacles of the old building were performed at the same time.A segmental construction method was adopted.The underground obstacles were removed and then replaced by supports.Thismethod avoided the influence of the obstacleremoval on the new construction,controlled the excavation deformation,ensured the excavation safety and also shortened the construction period. Key words:underground;obstacle;removing;monitoring 1工程概况 新建工程基坑边线原地下室顶板-0.750 第1道支撑 杭州地铁1号线龙翔站上盖物业城市综合体位 原地下室外场 A 原地下室 原围护桩 于杭州市延安路以东,学士路以南,平海路以北,吴 >外墙 原回填士 原围护样 此区坝 地下连续墙 山路以西市中心最繁华的商业区内。
施工技术 2012年12月下 62 CONSTRUCTION TECHNOLOGY 第41卷第379期 复杂地质条件下扩孔式锚杆施工技术 肖合顺,刘献伟,李娟,周月,石伟 (中建三局第一建设工程有限责任公司,湖北武汉430040) [摘要]福州某工程地质条件复杂,采用传统锚杆进行支护,施工过程中发生了塌孔、堵孔、锚杆成型后无法满足设 计要求的抗拉拔力等问题.经过研究后,首先对错杆进行设计优化,增设锚杆导向装置;其次在锚杆自由段成孔时 采用钢套管引孔、PVC管护孔技术以防塌孔;最后错杆下锚时选用两种不同方法.通过采用以上施工技术克服了 地质条件复杂多样等因素,成功解决错杆施工中的众多难题. [关键词]地下工程;锚杆;塌孔;堵孔;导向头;引孔 [中图分类号]TU753.1 [文献标识码]A [文章编号]1002-8498(2012)24-0062-02 Construction Technology of Reaming Anchor in Complex Geological Condition Xiao Heshun Liu Xianwei Li Juan Zhou Yue Shi Wei (The First Construction Engineering Limited Company of China Construction Third Engineering Bureau Wuhan Hubei 430040 China) Abstract:A project in :Fuzhou is featured with plex geological condition and was supported by traditional anchor.During construction some problems occurred including hole collapse hole filling insufficient pulling resistance of the anchor after forming.After study to these problems the anchor was firstly optimized and a guiding equipment was added.Secondly when holes were formed for the free segment of the anchor steel sleeve pipe was used as guiding hole and PVC pipe as protecting hole to prevent hole collapse.Finally two different methods were used to send the anchor.These measures successfully solved the many problems of reaming anchor construction in plex geological condition. Key words:underground;anchor;hole collapse;hole filling;guiding end;guide hole 1工程概况 防塌孔;最后锚杆下错时选用两种方法:一为复钻 福州世欧澜山园工程为一大型住宅小区,其技术,即下锚前二次钻孔再注浆;二为利用螺杆压 基坑支护工程采用扩孔式预应力铺杆.基坑支护 缩机...