[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...
施工技术 2017年4月下 28 CONSTRUCTION TECHNOLOGY 第46卷第8期 D0I:10.7672/sgjs2017080028 复杂地质及周边环境超长全回转全套管灌注桩 施工技术* 周学民12，王兴康2，赵建立1 (1.中国二十冶集团有限公司，上海201999；2.宁波二十冶建设有限公司，浙江宁波315800) [摘要]针对福建罗源钢坯打捞工程围护桩施工遇到的问题，分别从复杂地质条件下全套管掘进钻孔工艺、桩身垂 直度控制、混凝土凝固时间及拔管控制等方面，提出了长度达63m的超长全回转全套管灌注柱施工技术.基坑开 挖完成后，围护桩的成桩质量及效果明显优于泥浆护壁灌注桩，验证了技术的可行性.该技术无污染、适用条件 广、对周边扰动小、成桩效果好，能够有效在各种复杂地质条件及周边环境下施工，具有良好的社会效益和经济 效益. [关键词]全回转全套管；灌注柱；掘进；垂直度；拔管；施工技术 [中图分类号]TU476.3 [文献标识码]A [文章编号]1002-8498(2017)08-0028-04 Construction Technology of Ultra Long Filling Pile with Full Rotary Casing Method Under Conditions of Complex Geology and Surrounding Environment ZHOU Xuemin'.2 WANG Xingkang2 ZHAO Jianli' (1.China MCC20 Group Co. Lad. Shanghai 201999 China;2.Ningbo Ershiye Construction Co.Ltd.Ningbo Zhejiang 315800 China) Abstract:During the construction of salvage billet project in Luoyuan Fujian the technology of ultra-long filling piles with full rotary casing TUFPFRC)was adopted to build the retaining structure.The difficulties encountered during construction were discussed.The drilling technology verticality control concrete solidification speed and case pulling control were studied in detail in conditions of plex geology and surrounding environment.The TUFPFRC for the length of 63m was proposed.According to the test results the quality of filling pile by TUFPFRC was much better than the one by the method of slurry wall.The TUFPFRC has many advantages such as non-pollution wide application condition small disturbance to surrounding and good effect of pile.This technology can be used to construct filling pile for various conditions plex geology and surrounding environment.Social and economic effectiveness is significant. Key words:full rotary casing;filling pile;drilling;verticality;case pulling;construction 0引言 浆护壁，具有环境友好、适用地层广、对周边土体影 全回转全套管灌注桩施工技术是利用全回转 响小等优点，特别适用于淤泥、卵砾石及全风化基 全套管钻机，将预制好的钢套管通过360°回转压人 岩等多种地层2（也称为万能工法）. 地层至一定深度，通过冲抓斗将钢套管内的土体取 目前，全回转全套管灌注桩深度较浅，大多在 出，再逐步压入套管成孔，最后吊放钢筋笼、灌注混 40m范围内.虽然也有桩长超过40m的情况，但钢 凝土、起拔钢...
2016年7月上 施工技术 第45卷第13期 CONSTRUCTION TECHNOLOGY 97 D0I:10.7672/5j52016130097 复杂地层中大直径泥水盾构开挖面失稳及处理研究 赵峻 (上海隧道工程有限公司，上海200232) [摘要]南京地铁某标段区间隧道工程采用了1m级大直径泥水气压平衡盾构施工，介绍了该泥水气压平衡式盾 构在含砾中粗砂层和粉细砂地层中开挖面失稳的两种现象及处理技术.对于开挖面失稳的现象和原因进行了分 析，确定了失稳后舱内坍塌造成泥水管路堵塞的处理方法以及如何重新建立泥水平衡，总结了防止失稳的掘进技 术措施，最终顺利完成盾构掘进. [关键词]地铁；盾构；泥水气压平衡盾构；开挖面；失稳；施工技术 [中图分类号]U455.43 [文献标识码]A [文章编号]1002-8498(2016)13-0097-04 Study on Tunnel Face Failure in the Excavation of Large Diameter Slurry Shield Tunnels in Complex Stratum and Treatment Measures Zhao Jun (Shanghai Tunnel Engineering Co.Ltd.Shanghai 200232 China) Abstract:A 11m diameter slurry shield was used in the excavation of a river tunnel of Nanjing Metro. Two phenomenon of tunnel face failure of this machine in gravels and fine sand ground and correspondent treatment measures are introduced.The failure phenomenon and mechanism of tunnel face are discussed. The treatment measures of slurry pipe blockage due to the collapse in the chamber when the face failed as well as the reestablishment approach of slurry balance are determined.And excavation technical measures to prevent the failure of tunnel face are summarized.The excavation of the tunnel was successfully finished. Key words:subways;shields;slurry pressure balanced shield;excavation surface; instability;construction 盾构法隧道施工中，开挖面的稳定是能否连10200mm 环宽2000mm.该盾构本体长约13m 续、正常、安全施工的前提之一，而泥水气压平衡盾（车架段约100m) 最大推力139820kN 最大推进 构依靠加压泥水支护开挖面土体，其对稳定性的控 速度50mm/min 刀盘额定扭矩21174kNm 脱困扭 制要求更高，尤其在复杂地层中进行泥水盾构施矩25246kNm 主驱动密封与盾尾密封均为...
2016年8月下 施工技术 第45卷第16期 CONSTRUCTION TECHNOLOGY 91 D0I:10.7672/8js2016160091 复杂倒锥形钢管柱制作安装技术研究与实践 陈治，范彩霞，孔维拯 (中建钢构有限公司，广东深创518040) [摘委]本工程采用倒雅形钢管柱支承结构，其柱底角接触关节轴承支座制作容装工艺夏杂，柱项多维销和连接节 点精度要求高.遥过时柱内水管、钢管、轴承支座、柱项节点的分段焊装工艺的整体研究设计，实现了内管外 柱同步吊装与检正，保证了杂倒雅形钢管柱的容装精度. [并键词]钢结构；倒推形；钢柱；装；精度 [中图分类号]TU758.1 [交献标识码]A[交章编号]1002-8498(2016)16-0091-05 Research and Practice About Inverted Conical Steel Tube Column Installation Technology Chen Zhi Fan Caixia Kong Weizheng China Construction Steel Structure Co.Lad.Shenzhen Guangdong 518040 China) Abstract:The project uses the inverted conical steel tube column supporting structure its installation process of the bottom column joint bearing manufacture is plex and the multi pin connection nodes requires high accuracy as well.The rain water pipe in column steel sleeve bearing support the nodes at the tops of columns of subsection welding process were designed and studied.Through the above research work the internal and external column synchronous lifting and correction was realized and the installation precision of the plex inverted conical tube column was ensured. Key words:steel structures;inverted conical;steel tube column;installation;precision 1结构特征 本工程屋盖采用带有加强架的斜交斜放网 架结构，主要由104根倒雅形钢管柱支承（见图1）. 钢管柱最大截面壶径2200mm 最大壁厚42mm 柱 内安装有不锈钢雨水管和钢套管，施工交叉点多而 复杂.钢柱最大长度30.5m 标准柱距36m×36m 在柱距非常大的情况下其柱底节点承受最大竖向 图1屋盖结梅单元示意 荷载达到8000kN 水平椅载达到4200kN 在极端 Fig.1 The roof structure element 荷载工况下，甚至还可能出现垂直向上的拔力，给 场吊装的方法施工，这样使得柱项销轴连接节点和 施工带来极大园难. 柱底角接触关节轴承的预定装配精度实现验为圈 钢管柱...
施工技术 2013年3月上 86 CONSTRUCTION TECHNOLOGY 第42卷第5期 D0I:10.7672//5gjs2013050086 复合改性沥青混合料性能研究* 尹文军，刘永斌2，贺忠国1 (1.山东交通学院土木工程学院，山东济南250357；2.莱芜市市政公用事业管理局，山东莱芜271100) [摘要]在一定的温度范围内，将纳米微粒子无机材料接入SBS改性沥青中，经过高速剪切搅拌，配制成复合改性 沥青，通过检测其混合料的物理、力学、水稳定性、高温稳定性等路用性能技术指标，与对应的基质沥青、SBS改性 沥青混合料的路用性能技术指标进行对比分析.其结果表明，复合改性沥青增大了混合料的稳定度，改善了混合 料的流值、水稳定性，提高了混合料的高温稳定性. [关键词]公路工程；路面；复合改性沥青；沥青混合料 [中图分类号]TU502;U416.217 [文献标识码]A [文章编号]1002-8498(2013)05-0086-03 Study on Properties of Composite Modified Asphalt Mixtures Yin Wenjun' Liu Yongbin2 He Zhongguo' (1.School of Civil Engineering Shandong Jiaotong University Ji'nan Shandong 250357 China; 2.Laiseu Municipal Public Utility Administration Bureau Laisou Shandong 271100 China Abstract:Composite modified asphalt was prepared by adding the nano-particle inorganic material to SBS modified asphalt within a certain temperature range and mixing with high-speed shearing.Its technical indexes of pavement performance such as physical mechanical water stability high temperature stability were tested and then pared with corresponding matrix asphalt and SBS modified asphalt.The results show that the posite modified asphalt increases the stability of the mixtures improves their flow value and water stability as well as high temperature stability. Key words:road construction pavements;posite modified asphalt;asphalt mixtures 沥青改性技术的应用，使路面工程技术性能指 料具有优于常规复合材料的力学和热学性能，不仅 标取得了显著提高，改性沥青混合料广泛应用于重可使它的强度、刚性、韧性得到明显改善，而且可提 交通量公路路面建设中，并产生巨大的经济效益.高它的阻隔性、耐热性及耐老化性能3.通过试 随着现代公路交通运...
施工技术 2016年5月下 56 CONSTRUCTION TECHNOLOGY 第45卷第10期 D0I:10.7672/8js2016100056 地板管槽对流散热器施工技术 唐长领 (中铁建设集团有限公司，北京100040) [摘要]地板管槽对流散热器通过隐蔽安装于地沟槽内的对流换热设备，可以“隐身”地为建筑物提供过滤、加热和 冷却处理过的空气，既能采暖、制冷，又美观、节省空间，适用范围较广.通过分析地板管槽对流散热器的工作原理 和设计方案，结合工程实例，采用优化后的安装技术和流程，确保了工程质量和使用效果. [关键词]地板管槽；对流散热器；施工技术；安装；应用 [中图分类号]TU767.5 [文献标识码]A [文章编号]1002-8498(2016)10-0056-04 Construction Technology of Convector Installed in the Floor Groove Tang Changling (China Railway Construction Group Co.Ltd.Beijing 100040 China) Abstract:By installed in the floor groove the convectors can secretly provide filtering heating and cooling air for the building which not only can heat and cool but also is beautiful and saves space.By analyzing the working principle and design scheme of the convector and bining with the practice engineering the installation technology and installation flow are optimized to assure the engineering quality and effects. Key words:floor groove;convector;construction;installation;application 玻璃幕墙作为建筑外墙结构已被广泛地使用影响到房间舒适性，而且还会直接影响房间的装饰 在各类公共建筑中，玻璃幕墙的使用给我们带来视效果，为此，安装单位联合地板管槽式对流散热器 觉享受的同时，其较高的导热性和良好的通透性，制造厂家，对该设备的安装方法进行了研究、改进， 却也为建筑物室内环境带来了一些负面影响，如造 形成了一套高效的工法. 成室内温度分布不均影响舒适度、增加了建筑能耗 1工作原理 等.传统的风机盘管等吊顶式空调末端设备不能 地板管槽对流散热器根据热气流自然上升、冷 彻底解决这些问题，暖气片、地板采暖等设备又达 气流自然下降的基本原理进行设计. 不到空间和美观要求，而地板管槽对流散热器的应 冬季，室温空气经过滤网被贯流风机吸人，与 用可以较好地解决这些问题，同时设备本身也具有 倾斜放置的热交换器中的热水换热后，沿窗向上送 非常好的室内装饰效果. 入室内，加热后的气流沿幕墙玻璃垂直向上升起， 地板管槽对流散热器通过隐蔽安装于地沟 加热幕墙处冷气流，之后与室内空气混合，在为室 槽内的对流换热设备，可以“隐身”地为建筑物提 内加热的同时，屏蔽了窗边冷气流对室内的侵袭， 供过滤、加热和冷却处理过的空气.该设备既能 ...
施工技术 2014年10月上 24 CONSTRUCTION TECHNOLOGY 第43卷第19期 D01:10.7672/sgjs2014190024 地基沉陷导致房屋局部损坏的检测及加固处理 * 郭昭胜，崔娟玲 (太原理工大学建筑与土木工程学院，山西太原030024) [摘要]对因地基突然沉陷导致的砖混房屋局部损坏情况进行了全面检测，基于地质勘察数据分析，指出未勘明的 潜伏冲沟是造成地基突然沉陷的根本原因，土体浸水是致使地基突然沉陷的诱因.在采用压力注浆法对地基土进 行加固后，针对出现损坏的墙体和基础，采用墙体面层加固法及改条基为筏基的方法进行处理，取得了良好的 效果. [关键词]地基；加固；沉陷；开裂；检测：压力注浆 [中图分类号]TU472 [文献标识码]A [文章编号]1002-8498(2014)19-0024-05 Inspection and Strengthening Treatment of Local Damage in Building Caused by Foundation Settlement Guo Zhaosheng Cui Juanling College of Architecture and Civil Engineering Taiyuan University of Technology Taiyuan Shanxi 030024 China) Abstract:Comprehensive inspection of local damage in building caused by abrupt foundation settlement is carried out.According to the investigation of geotechnical engineering unknown under drain in field is the basic reason of abrupt foundation settlement water infiltration is incentive of abrupt foundation settlement.In order to ensure the normal function of structure reasonable methods of reinforcement housings such as pressure-grouting method masonry strengthening with mortar splint transforming strip foundation to raft foundation are proposed.The project of reinforcement construction has good results. Key words:foundations;strengthening;settlement;cracks;detection;pressure grouting 0引言 道工程施工引发的附近地面塌陷、地面沉降变形等 地基不均匀沉降是造成基础及房屋上部结构 地质灾害原因，致使房屋梁、柱构件开裂的案例，在 出现变形、开裂等损伤的主要原因之一.地基不均 检测鉴定的基础上，采取了增大截面加固法、外包 匀沉降的变形速率也直接影响到上部结构的损伤 钢加固法和粘贴碳纤维加固法等合理加固方法，取 程度.当地基变形速率较小时，沉降缓慢发生，上 得了良好的效果.针对某多层砖混...
2013年9月上 施工技术 第42卷第17期 CONSTRUCTION TECHNOLOGY 41 D0I:10.7672/8gj82013170041 地下隧道无对拉螺栓外墙施工技术* 刘勇，吴纪东 (郑州市市政工程总公司，河南郑州450007) [摘要]随着城市的发展，设置下穿式隧道成为缓解城市交通拥堵的必然措施之一.结合郑州市郑东新区龙源十 三街隧道工程，对隧道外墙渗漏水情况进行了分析，并提出应对措施.详细介绍了隧道无对拉螺栓外墙施工工艺 原理和工艺流程，以及混凝土灌注过程中外侧贝雷架变形验算.工程实践表明，该工艺有效地控制了隧道外墙的 渗水，保证了隧道的正常运营. [关键词]隧道工程；外墙；对拉螺栓；贝雷架；施工技术 [中图分类号]U455.7 [文献标识码]A [文章编号]1002-8498(2013)17-0041-05 Exterior Wall Construction Technology of Underground Tunnel Without Split Bolt Liu Yong Wu Jidong Zhengzhou Municipal Engineering Co. Ltd.Zhengzhou He'nan 450007 China) Abstract:With the development of city setting underpass type tunnel is necessary to relieve traffic jam of city.Based on Longyuanshisanjie Tunnel engineering in Zhengdong New District of Zhengzhou the authors analyze water leakage condition for exterior wall of the tunnel and put forward countermeasures. The authors introduce construction principle and technological process of the exterior wall without split bolt the deformation calculation of lateral bailey trusses during concrete pouring.Engineering practice shows that the construction process can effectively control external wall seepage which ensures normal operation of the tunnel. Key words:tunnels;exterior walls;split bolts;bailey trusses;construction 1工程概况 受力主筋迎水面保护层厚50mm 背水面保护层厚 郑州市郑东新区龙源十三街隧道工程，位于郑40mm 构造钢筋保护层厚25mm. 州市东北部规划龙湖区内，由南向北，全长3150m 工程主体结构最大埋深19m 所在区域地下稳 其中暗埋段长2630m.本次施工为一期工程，全长 定水位为顶板以上3m;隧道上方为占地500万m2 540m 全部为暗埋段，位于龙湖湖底以下. 的龙湖；隧道埋深范围内土层为粉砂层，土质渗透 隧道标准段采用双孔拱形钢筋混凝土整体箱 系数高，因此隧道防水要求高. 涵结构，全线隧道单孔净宽12.9m 单孔横断面布置 本工程是中原地区第1条下穿湖底隧道，所在 为0.75m(检修通道)0.5m(路缘带)10.75m 龙湖区为郑州市景观旅游区，隧道外观要求较高， (机动车道)0.5m(路缘带)0.4m(防撞侧石)， 要求隧道墙面不得出现渗漏、斑点等现象. 隧道采用双向6车道布置.隧道暗埋段中隔墙厚 2隧道外墙渗漏水情况调查分析及应对措施 0.9m 侧墙和顶、底板厚度随埋深变化而变化，其中 通过网上检索和实地调查发现，无论是市政隧 顶、底板厚度变化范围1.1~1.5m 侧墙厚度变化范 道还是其他各种隧道，隧道侧墙对拉螺栓孔处都不 围为1.0~1.2m. 同程度地存在质量问题，其中渗漏水现象占80%以 隧道主体结构使用年限为100年，结构表面最 上，且隧道结构面渗漏水大都出现在侧墙结构面 大计算裂缝宽度要求≤0.2mm(且不得出现贯通)， 上.本工程结构全部位于地下水位以下，湖区蓄水 后水压力较大，考虑到结构的耐久性、景观要求，规 *2013年度郑州市建设科技计划项目(2013-19-10) [作者简介]刘勇，高级工程师，E-mail:8...
2011年9月下 施工技术 第40卷第349期 CONSTRUCTION TECHNOLOGY 97 地下连续墙双头潜水钻逐条钻进成槽施工技术 李东驰，刘淑英 (山西六建集团有限公司，山西太原030012) [摘要]地下连续墙双头潜水钻逐条钻进成槽工艺采用双头潜水钻逐条钻进成槽、泥浆反循环排渣、修槽器修槽、 清斗沉淀法对泥浆回收利用，其成孔效果好、节约原材料，可降低工程成本.介绍了该工艺原理及导墙、泥浆、成槽 施工工艺及质量控制措施.结果证明，该工艺经济效益和社会效益显著，具有广阔的应用前景. [关键词]地下工程；地下连续墙；双头潜水钻；施工技术 [中图分类号]TU476.3 [文献标识码]A [文章编号]1002-8498(2011)18-0097-03 Construction of Individually Trenching with Double Drills Diving Dig for Diaphragm Walls Li Dongchi Liu Shuying (Shanxi Sixth Construction Group Co.Ltd.Taiyuan Shanxi 030012 China) Abstract:The characteristics of individually trenching with double drills diving dig for diaphragm walls are introduced including adopting double drills diving dig to trench reverse circulation of mud to discharge the residue and recycling the mud with precipitation of residue bucket.The technology can be used with good trenching effect and it can save materials and cost.The principle of the technology and construction of guiding wall mud trenching technique are introduced as well as quality control measures.It proves that the technology has good economical and social benefits with broad application prospect. Key words:underground;diaphragm wall;double drills diving dig:construction 随着城市土地日趋紧张，高层和超高层建筑的用（见图1）. 出现，地下连续墙施工技术得到广泛应用.我国在 地下连续墙施工中，成槽设备目前应用最多的是吊 索式蚌式抓斗、导杆式蚌式抓斗、多头钻和冲击式挖 槽机. 喷出口 成槽台车 在某医院改扩建工程中了采用双头潜水钻逐条 渣土 钻进成槽技术，取得良好效果，经济效益显著、成孔 溢流泥浆 效果好、节约能源，具有广阔的应用前景. 导槽 1工艺特点 地下连续墙双头潜水钻逐条钻进成槽施工工艺 具有如下特点：①双头潜水钻逐条钻进成槽；②泥浆 气举管 反循环喷导管 反循环排渣；③修槽器修槽；④渣斗沉淀法对泥浆回 王钻机 已成的槽 收利用；⑤成孔效果好，节...
施工技术 2013年2月上 110 CONSTRUCTION TECHNOLOGY 第42卷第3期 D0I:10.7672/8gjs2013030110 地下结构裂缝预控与防水优化设计 胡骏1，孙小华2 (1.杭州金汤建筑防水有限公司，浙江杭州310020；2.中国建筑第三工程局有限公司，湖北武汉430074) [【摘要]地下建筑工程裂缝80%以上由变形引起.采用以放为主的设计原则，在规划部位以多设缝的方法释放混 凝土的内应力，可以达到控制和减少无序裂缝产生的目的.而地下建筑工程中，缝的防水又是一大难题，针对地下 工程中儿种常用缝的防水方法进行分析，在参考了日本防水做法的基础上，结合我国工程应用实例，提出各种缝的 优化防水设计方法. [关键词]防水工程；混凝土；裂缝；后浇带；诱导缝；丁基钢板止水带 [中图分类号]TU761.11 [文献标识码]A [文章编号]1002-8498(2013)03-0110-06 Cracks Prevention on Underground Structure and Optimization Design for Waterproof Hu Jun' Sun Xiaohua2 (1.Hangzhou Jintang Waterproofing of Building Co.Ltd.Hangzhou Zhejiang 310020 China; 2.China Construction Third Engineering Bureau Co.Ltd.Wuhan Hubei 430074 China) Abstract:80%cracks of underground project are caused by deformation.In order to control and reduce casual cracks the design principle of 'release'can be adopted and the internal stress of concrete can be released by setting construction gaps within the planned locations.Waterproof design is another challenge of underground project.Analyses were performed with respect to the waterproof design methods for several mon joints.With reference to the waterproof technology in Japan and also bined with actual projects in China the waterproof design optimization methods were proposed for various joints. Key words:waterproofing;concrete;cracks;late-pouring belt;induced joints;butyl plate water-stop belt 随着城市建设的发展，高层建筑及地下空间开发裂缝是相对的，裂缝的存在是混凝土固有的一种物 已成为普遍采用的增加单位土地面积利用率的方法.理性质.根据有关论著阐述，以0.05mm宽度为限， 大面积、多层、超长地下室以及绵延数公里的地...
2011年5月下 施工技术 第40卷第341期 CONSTRUCTION TECHNOLOGY 77 地下煤斗沉井施工技术 吴敏，冉斌 (中建三局第二建设工程有限贵任公司，湖北武汉430074) [摘要]由于沉井施工技术具有施工安全、质量可靠、操作方便、施工工期短，经济效益显著等优点，最终确定为地 下煤斗施工方案.介绍了煤斗沉井施工工艺流程及操作要点，如沉井制作、井简加固措施、沉井下沉主要方法和描 施、并内挖土和土方吊装方法，沉井封底主要方法和抗浮稳定性验算等.总结得出施工中一系列质量和安全控制 措施. [关键词]地下煤斗；沉井施工；质量措施；安全措施 [中图分类号]TU753.64 [文献标识码]A [文章编号]1002-8498(2011)10-0077-03 Caisson Construction Technology for Underground Coal Hopper Wu Min.Ran Bin The Second Conatruction Engineering Co.Lad.China Conatruction Third Engineering Bureau Wuhan Hubei 430074 China) Abstract:For caisson construction technology has lots of advantages such as construction safety reliable quality easy operation short construction period as well as having a good economic benefit the construction of underground coal hopper decides to use this technology finally.The construction process and key operations of caisson construction are introduced such as caisson making reinforcement measures of wells shaft main method and measures of caisson sinking wells excavation and earth hoisting the methods of closing the bottom of caisson and its anti-floating design ete.Measures for construction quality and construction safety are concluded at last. Key words:underground coal hopper;caisson construction;quality control;safety measure 地下煤斗为输煤系统建（构）筑物中最深结构，身混凝土达到一定强度后，在井内挖土使土体降低， 通常深1m 四周临近斗轮机基础、紧急事故平台.沉井简身依靠自重克服其与土壁间的摩阻力，下沉 百通电厂工程地下煤斗结构尺寸（长×宽×高）：直至设计标高，经就位校正后进行封底处理. 17m×8m×10m 结构壁厚1m. 3煤斗沉井施工工艺流程及操作要点 1沉井施工技术特点 3.1工艺流程 ①施工安全利用自身混凝土结构作为支护， 工艺流程：施工准备→工程测量定位放线→...
