施工技术 2012年9月下 98 CONSTRUCTION TECHNOLOGY 第41卷第373期 天津泰达广场深大基坑部分逆作法施工技术 鲁卫康,顾春风,陈珍刚,董秀福 (浙江中成建工集团有限公司,浙江绍兴312000) [摘要]以天津泰达广场A 区裙房及中央广场工程项目施工为工程背景,介绍了深大基坑中央区域通过盆式开 挖、继而作该区域地下结构,周边地下1层楼板以下结构完成后土方暗挖的施工工艺流程.在实施过程中应用 了周边逆作结构楼板土胎模施工技术、土方暗挖技术、钢筋预埋及混凝土浇筑技术等.实践证明,该技术的应用具 有缩短工期、经济效益好、对周边环境影响小等优点. [关键词]高层建筑;地下工程;基坑;周边半逆作;暗挖;土胎模 [中图分类号]TU245 [文献标识码]A [文章编号]1002-8498(2012)18-0098-04 Partially Reverse Construction Technology of Deep and Large Foundation Excavation in Tianjin Teda Square Lu Weikang Gu Chunfeng Chen Zhen'gang Dong Xiufu Zhejiang Zhongcheng Construction Group Co.Lad.Shaoxing Zhejiang 312000 China) Abstract:Taking podium of area A and B and central square project in Tianjin Teda Square as example the process of partially reverse construction method for the deep and large foundation excavation is introduced.The process can be described as follows:firstly excavating the central area in basin-shape and secondly constructing the underground structure of the central area with normal method then cover excavating the soil after the surrounding slab structure finishing under the slah of basement.A series of key technologies are adopted such as soil formwork for the reverse constructed surrounding slab cover excavation of soil reinforcement bars embedding and concrete pouring.It proves that constructing with the mentioned technology can shorten construction time with good economical benefits.Moreover the technology has smaller influence to the surrounding environment. Key words:tall ...
施工技术 2016年10月上 46 CONSTRUCTION TECHNOLOGY 第45卷第19期 D0I:10.7672/5j52016190046 天津地区浅层地下水回灌试验分析 牛磊1,张春福2,孟祥玉2,裴建新2 (1.上海长凯岩土工程有限公司,上海200070;2.天津建工工程总承包有限公司,天津300074) [摘要]通过现场回灌试验期间数据分析,研究天津复杂地层条件下回灌的可行性,获取常压状态下单井最大回灌 量,同时研究回灌的不同启动阶段对于水位的影响.研究结果表明:针对天津地区复杂地层条件实施地下水回灌 是可行的. [关键词]地下工程:基坑;回灌;试验 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2016)19-0046-03 Analysis of Shallow Groundwater Recharge Test in Tianjin Area Niu Lei' Zhang Chunfu? Meng Xiangyu2.Pei Jianxin2 (1.Shanghai Changkai Geotechnical Engineering Co.Lad.Shanghai 200070 China: 2.Tianjin Engineering Construction Corporation Tianjin 300074 China) Abstract:According to the data analysis of recharge test this paper analyzed the feasibility of recharge in Tianjin plex stratum conditions got the maximum recirculation researched on the effect of different start-up phases on the water level.The research shows that it is feasible for recharge in Tianjin. Key words:underground;foundation excavation;recharge;tests 0引言 结合勘察资料,施工场地内地下水主要分为潜 随着城市的不断发展,越来越多的超深、超大 水、第一承压水和第二承压水,各含水层包含地层 基坑建于闹市,基坑周边环境复杂.针对沿海软土 如表1所示. 地区,地下水位较高,基坑降水成为基坑工程必要 表1地层情况 环节,但是由于降水引起的周边环境变形控制显得 Table 1 Stratum condition 尤为关键.上海、北京等地区部分深基坑工程通过 含水层 包含地层 采用坑外地下水回灌技术减小或抑制降水引起的 潜水 ④2粉土、⑥3粉土、⑥粉砂、⑥粉土 基坑周边建(构)筑物沉降,并取得了一定成效. 第一承压含水层 ⑧2粉砂、⑧2粉土 ⑨1粉土、⑨4粉砂、⑩2粉砂、⑩23粉土、 施工过程中回灌设计常常依赖于施工现场的 第二承压含水层 ①2粉土、①2粉砂、①2细砂 回灌试验,现场回灌实施的基础是建立在针对回灌 第三承压水 ①,粉砂 试验的数据分析上,通过回灌试验得到相关地层的 回灌适应性以及回灌井特性.基于此在回灌设计 1.2回灌试验目的 前有针对性的回灌试验实施,是后期回灌实施方案 通过现场回灌试验明确针对⑧,层第一承压水 能否成功的关键.本文结合天津某基坑进行的现 进行回灌的可行性,了解针对⑧,层第...
2011年4月上 施工技术 第40卷第338期 CONSTRUCTION TECHNOLOCY 93 喷涂聚脲技术在彩钢屋面快速修复中的应用 黄微波,向佳瑜,盖盼盼,刘超 (青岛理工大学功能材料研究所,山东青岛266033) [摘要]重点介绍了喷涂聚聚材料QTECH403在彩涂钢板屋面快速修复中的应用及其发展前景,详细阐述了 QTECH-403在彩钢屋面上快速修复的特点和施工工艺.研究结果表明:QTECH-403涂层具有优异的力学性质、附 着力和耐老化性能,能够抗击自然界的冻融循环、干湿交替、腐蚀破坏、外力冲击和机械应力所引起的变形,对彩钢 屋面起到很好的防护作用. [关键词]彩涂钢板屋而;喷涂聚脉;快速修复:渗漏;防护 [中图分类号]TU576 [文献标识码]A [文章编号]1002-8498(2011)07-0093-02 Polyurea Spraying Technology Used in Quick Repairing for Color Steel Roof Huang Weibo Xiang Jiayu Gai Panpan Liu Chao Research Institute of Functional Materials.Qingdao Technological Unirersity Qingdao Shandong 266033 China) Abstract:Application and prospect of spray polyurea material QTECH-403)used in quick repairing for color steel roof are introduced and characteristies and technique of QTECH-403 are expounded in detail. The study results show that QTECH-403 has excellent mechanical properties adhesion and anti-aging properties which can resist the deformation caused by the nature freeze-thaw cycle alternate of wetting and drying corrosion damage external impact force and mechanical stress and has a very good protective effect for the color steel roof. Key words:color steel roof;spray polyurea;quick repairing;leakage;protection 彩涂钢板因其具有施工便捷、成本低廉和自动老化性好,可以达到“一劳永逸”的效果. 化程度高等优点,目前已在工业厂房、体育场馆、大1.1技术优势 型仓库等建筑中得到了大量应用,但是在使用过程 与现有的其他修复技术相比,QTECH403施工 中普遍存在渗漏、腐蚀等现象,因而阻碍了其进一步 方便快捷、性价比高.QTECH-403和高性能防水卷 发展和应用.本文对喷涂聚脲材料QTECH-403在 材在彩钢屋面快速修复中的构造如图1所示,可以 彩钢屋面快速修复中的应用进行了研究. 看出,QTECH-403的修复不需找平,更有利于施工. 1快速修复技术 QTECH-403与现有彩钢屋...
2012年10月上 施工技术 第41卷第374期 CONSTRUCTION TECHNOLOGY 79 唐家山隧道施工特性及时空效应研究 霍晓龙,陈寿根,张小明 (西南交通大学交通隧道工程教育部重点实验室,四川成都610031) [摘要]以汶川灾后重建的唐家山公路隧道为背景,采用FLAC3软件建立隧道三维模型,模拟了隧道在不同施工 方式中围岩随时间和空间变形的过程,并结合现场实测数据,重点分析了拱顶沉降、水平收敛和掌子面的挤出位 移.结果表明:软岩隧道围岩稳定很大程度上受到隧道的时空效应影响,施工中要综合选择开挖方式,既要考虑围 岩先行变形,也要考虑掌子面的挤出变形,同时通过早期闭合支护来控制围岩的后方变形. [关键词]隧道工程;软弱围岩;时空效应;数值模拟;监测;水平收敛;沉降 [中图分类号]TU94;U459.2 [文献标识码]A [文章编号]1002-8498(2012)19-0079-05 Study on Construction Characteristic and Temporal-spatial Effect of Tangjiashan Tunnel Huo Xiaolong Chen Shougen Zhang Xiaoming (MOE Key Laboratory of Transportation Tunnel Engineering Southwest Jiaotong University Chengdu Sichuan 610031 China) Abstract:Taking Tangjiashan highway tunnel which was reconstructed after the Wenchuan earthquake as background a three-dimensional model was constructed for the tunnel using software FLAC3D to simulate the rock deformation with time and space in different ways of tunnel construction.Combined with the field measurement the vault settlement the level convergence and the extruded displacement of the working face were analyzed in detail.The results show that stability of surrounding rock in soft rock tunnel is significantly influenced by temporal-spatial effect of the tunnel.As a result prehensive considerations should be made during the selection of excavation methods i.e.both the rock deformation 、一and the extruded deformation of the working face.At the same time the rear rock deformation should be controlled by early closed supporting....
施工技术 2014年11月上 86 CONSTRUCTION TECHNOLOGY 第43卷第21期 D0I:10.7672/5js2014210086 启东地区吹填海砂土改良试验研究 喻国轩1,李淑娥2,金明东2,陈志明2,瞿健3 (1.上海交通大学船舶海洋与建筑工程学院,上海200240;2.南通市公路管理处,江苏南通226000; 3.启东市交通运输局,江苏启东226200) [摘要]本着“就地取材、变废为宝”的原则,应用吹填海砂土进行路基填筑,经济效益较大,但是海砂土工程性能 差,黏聚力小,地基土强度不易达到标准,需要使用无机结合料对其进行改良.通过土工试验测定吹填海砂土的基 本性质,设计分别使用石灰和水泥改良吹填海砂土的试验方案,按照设计方案对改良后的海砂土进行界限含水率、 无侧限抗压强度和三轴剪切试验.结果表明,采用石灰改良方案能有效提高抗剪强度,降低吹填海砂土的塑性,改 善海砂土的工程性能. [关键词]地下工程;路基;吹填海砂土;经济效益;改良 [中图分类号]TU753.1 [文献标识码]A [文章编号]1002-8498(2014)21-0086-04 Experiment and Study on the Improvement of Dredger Fill Sand in Qidong Area Yu Guoxuan' Li Shue2 Jin Mingdong? Chen Zhiming? Qu Jian' (1.School of Naval Architecture Ocean and Civil Engineering Shanghai Jiaotong University Shanghai 200240 China; 2.Nantong Transportation Engineering Management Department Nantong Jiangsu 226000 China; 3.Qidong Transportation Department Qidong Jiangsu 226200 China) Abstract:For the principle of“obtaining raw material locally turning waste into treasure" the dredger fill sand is applied to roadbed fillings.Although with the high economic benefit the dredger fill sand has characteristics of poor project performance and low cohesive force.The strength of the foundation soil is not easy to reach the standard.Therefore inorganic binder is applied to reinforce the dredger fill sand.A series of basic soil tests on the treatment of dredger fill sand with lime and cement are done such as limit water content unconfined pressive strength and the three axis shear test in ...
2011年2月 施工技术 第40卷第3期 CONSTRUCTION TECHNOLOGY 67 厦门西站综合施工技术 钱增志 (中铁建设集团有限公司,北京100131) [委]厦门西是桥含建的线上式站房,分为出站层、站台层和嘉架层三个居面.整个房工程科技含量高, 施工难度大,主熏施工点包括:清水混凝土A型塔往施工、大跨度弧形钢筋混凝士箱梁施工、超长轻薄巨型铜管 整体提升施工、海复朵地用超长桂施工等,传含这些工程难点,介了庄要的施工技术. [关键词]厦门西站:巨型钢管粉:弧形箱梁:A型塔柱 [中密分类号]TU242:TU74 [文献标识码]A [交章编号]1002-8498(2011)03-0067-04 Comprehensive Construction Technology of Xiamen West Railway Station Qian Zengzhi China Railway Construction Group Co.Lad.Beijing 100131 China) Abstract:Xiamen West Railway Station is a line-type station bing station and bridge into unit.The station consists of out station layer platform layer and overhead layer which have high technological content and big construction difficulty degree.The key construction points include construetion of A-ype tower column with fair-faced concrete construction of large-span are reinforeement conerete box girder integrate lifting construction of super-Hength and lightweight mega steel pipe truss and construction of super long pipe in plex strata near sea.The authors mainly show the related construction technologies. Key words:Xiamen West Railway Station:mega steel pipe truss:are box girder:A-type tower column 1工程概况 厦门西站工程总建筑面积达162409m2 其中 站房109028m2 站台雨莲53381m2 建筑总高度达 66.78m.主站房平面投影为工字形,宽132m 长 219.5m.厦门西客站由站房及站台雨篷工程、刚架 桥、地铁土建预留工程几个部分组成.厦门西站房 C 采用高架候车与线下出站式布局,旅客流线采取 “上进下出”的形式,将车站分为出层、站台、高 架层三个层面. 站房桩基采用流聚护壁钻孔混凝土灌注桩,桂 图1钢屋盖衍架 长最大为80m:1 2层采用钢筋混凝土框架结构,楼 Fig.1 The truss of steel roof 面梁采用现浇钢筋混凝土双向有黏结预应力梁,跨 2主要施工技术难点 度最大为33m 楼板为钢筋混凝土现浇板:屋盖采...
施工技术 2011年1月 80 CONSTRUCTION TECHNOLOGY 第40卷第1期 厦门西站大尺寸矩形人工挖孔桩施工技术 梅洪亮 (中铁建设集团有限公司,北京100131) [摘要]以厦门西站刚架结构铁路桥桩板墙的人工挖孔柱为例,介绍了大直径规则尺寸人工挖孔桩的施工要点. 在孔壁支护中,根据不同的地质情况,分别采用了现浇式配筋混凝土护壁施工工艺和预制管沉井开挖施工工艺. 同时,详细介绍了孔内混凝土浇筑的施工工艺和人工挖孔桩施工的安全注意事项. [关键词]厦门西站;矩形人工挖孔桩;护壁;沉井 [中图分类号]TU753.3 [文献标识码]A[文章编号]1002-8498(2011)01-0080-03 Construction Technology of Large Sized Rectangle Manual Hole Digging Pile in Xiamen West Railway Station Mei Hongliang (China Railway Construetion Group Co. Ld.Beijing 100131 China) Abstract:Based on manual hole digging pile of frame structure railway bridge sheet-pile wall in Xiamen West Railway Station key construction points of large diameter rectangle manual hole digging pile are introduced.According to different geological conditions in wall of hole construction techniques of cast- in-place reinforced concrete wall protection and precast tubular excavation of cylinder are adopted. Furthermore construction technique of cogne concrete pouring and safety matters are introduced in detail. Key words:Xiamen West Railway Station;rectangle manual hole digging pile;wall protection;caisson 1工程概况 厦门西站由站房及站台雨篷工程、刚架桥、地铁 L形挡 士建预留工程组成,总建筑面积达162409m2 其中 站房109028m2 站台雨篷53381m2 建筑总高度达 66.78m.主站房平面投影为工字形,宽132m 长 - 篮 219.5m.厦门西站站房采用高架候车与线下出站 式布局,旅客流线采取“上进下出”形式,将车站分 为出站层、站台层、高架层3个层面.出站通道处的 楼梯两侧设计以“L”形挡墙与柱板墙结合的方式对 侧面土压力进行支护.其中桩板墙需要46根矩形 锚固柱提供锚固力,其截面尺寸以2.0m×2.5m为 主,深20m左右,且现场水位较低,有些部位涌水量 图1桩板墙及挖孔桩示意 较大.矩形桩没有专门的成孔钻头,因此采用人工 Fig.1 Sheet-pile wall and digging pile 挖孔的施工方法(见图1 2).矩形人工挖孔桩的要 孔壁支护设...
施工技术 2011年9月下 14 CONSTRUCTION TECHNOLOGY 第40卷第349期 厦门怡山商业中心逆作板墙深井灌注桩 综合安全施工技术 张明 (中国建筑第四工程局有限公司厦门分公司,福建厦门361000) [摘要]为解决厦门怡山商业中心大直径逆作板墙灌注桩施工安全技术难题,采用安全综合施工技术,其创新点在 于采用安全亭、可视对讲报警系统、大功率送风机、深层探照灯照明系统及先进安全技术管理理念等.介绍了冲孔 桩与逆作板墙深井桩同期施工的安全技术措施、施工作业人员安全监测系统、井下作业紧急逃生安全系统、桩基安 全施工技术措施等关键措施.该技术较好地解决了大直径超深逆作板墙深井灌注承压柱施工安全技术问题,保证 了桩基安全顺利完成. [关键词]地下工程;桩基;逆作法;安全;管理 [中图分类号]TU753.3 [文献标识码]A[文章编号]1002-8498(2011)18-0014-04 Integral Safety Technology of Reversed Constructed Plate-wall Deep-well Bored Piles in Yishan Commercial Center in Xiamen Zhang Ming Xiamen Branch of China Construction Fourth Engineering Dirision Co. Ltd.Xiamen Fujian 361000 China) Abstract:In order to solve safety difficulties of large-diameter reserved constructed plate-wall deep-well bored piles in Yishan Commercial Center in Xiamen the integral safety technology is adopted.The innovation includes safety pavilion video inter alarm system high-power blower deep-elevation searchlight system and advanced safety management ideas.Key measures are introduced such as safety technical measures for simultaneous construction of punching piles and reversed constructed plate-wall deep-well bored piles safety monitoring system for construction workers emergency escape system for underground operators and safety technical measures for the pile foundation.The integral safety technology solves difficulties in the piles construction and ensures successfully plete of the project. Key words:underground;piles;reverse construction;safety;...
[关键词]地下工程;桩基;逆作法:灌注桩;施工技术 [中图分类号】TU753.3[文献标识码]A【文章编号】1002-8498(2011)18-0009-05 CompleteSetsofConstructionTechnologyforReversedConstructed Plate-wall Deep-wellBoredPilesinYishan Commercial CenterinXiamen Zhang Ming,Wang Guanglu,Su Wei (Xiamen Branch of China Construction Fourth Engineering Division Co.,Lud.,Xiamen,Fujian 361000,China) Abstract:The twenty four large-diameter reversed constructed plate-wall bored piles is designed in the 2.4 ~3.2m and the length is 50 ~60m with enlarged 6.8m diameter bottom parts. Characteristic value of single pile is 32 000 ~ 51 000kN. Based on geological conditions,key technologies are introduced including water sealing with diaphragm wall, construction of reversed constructed plate-wall of deep-well bored piles, integrated safety technology as well as post-grouting technology. Considering of test equipments and construction conditions,authors designed plate load test at elevation of -55m,the bottom of reversed constructed plate-wall deep-well bored piles,instead of static load test to research the bearing capacity of soils.It proves that the application effct of plete sets of construction technology for reversed constructed plate-wall deep-wall bored piles is good. Key words:underground; piles; reverse construction; bored piles; construction 1工程概况 2地质条件 厦门怡山商业中心项目地下5层,地上39层, 根据勘察报告,本场地岩土层自上而下分布主 其塔楼...
2011年5月下 施工技术 第40卷第341期 CONSTRUCTION TECHNOLOGY 95 厦蓉高速浅埋软弱围岩隧道施工技术 何东 (贵州高速公路开发总公司,贵州贵阳550001) [摘要]针对厦蓉高速肇兴隧道全线较长,处子软弱围岩不良地质条件下,施工难度大等实际情况,针对浅埋软弱 隧道特点,分析其施工方法,包括围岩量测、隧道支护施工、隧道地表水处理、深孔注浆技术、开挖施工、正洞施工 等.从开挖方祛及控制措、支护控制指施及对地面和洞内的监控测量等,总结得出隧道施工防坍塌措施. 【关键词]软弱围岩;隧道:支护;施工技术 [中图分类号]U459.1 [文献标识码]A[文章编号]1002-8498(2011)10-0095-03 Construction Technology of Shallow-depth Tunnels in Weak Surrounding Rock at Xiamen-Chengdu Expressway He Dong (Guithou Expressway Development Company Guiyang Guishou 550001 China) Abstract:Because the length of Zhaoxing tunnel in Xiamen-Chengdu expressway is very long and the tunnel locates at weak surrounding rock the tunnel construction is difficult.Based on the actual situation with the characteristics of shallow-depth tunnel some construction methods are researehed such as surrounding rock measuring method tunnel supporting construction surface water treatment deep holes pouring technology excavation construction main tunnel construction ete.From the research of the excavation method control measures supporting measures and the monitoring of ground and tunnel the construction measures of prevent collapsing are concluded. Key words:weak surrounding rock tunnel;supporting;construction technology 随着我国公路建设日新月异,隧道建设项目日隙发育,局部可能出现软弱夹层,且围岩破碎严重. 益增多.在隧道施工建设中常会遇到浅埋地层松散围岩的自稳时间也较短,拱顶难免出现松弛变形和 软弱,破碎围岩带等不良地质段.由于浅埋地层埋掉块等现象,需要采取支护措施保证施工安全.在 藏较浅,大都是风化破碎的隧道围岩,受力复杂,导软弱围岩隧道施工过程中,可采用的施工方法一般 致圈岩和支护应力分布和变形非常复杂,尤其是在有:喷锚构筑施工法和复合村砌法.喷锚构筑施工 地形起伏较大的丘陵地带,在隧道施工中,面临更为法是借助新奥法原理,把岩土力学原理作为...
2014年10月上 施工技术 第43卷第19期 CONSTRUCTION TECHNOLOGY 29 D0I:10.7672/5gjs2014190029 全螺纹纤维树脂杆体替代钢筋在基坑支护中的创新应用 李哲琳,郭金武,倪晓荣 (中国新兴建设开发总公司,北京100039) [摘要]在基坑支护工程中,土钉墙支护是较为常用的支护方式,土钉一般选用钢筋作为杆体筋材,但钢筋土钉易 遭受腐蚀而失效:另一方面,埋置于土层中的钢筋土钉在后期坑道工程开槽施工中形成了障碍,增加了施工难度和 处理费用,也不利于节约资源.通过将全螺纹纤维增强树脂杆体作为土钉主筋在基坑支护工程实践中的试验与应 用,总结了全螺纹纤维增强树脂杆体土钉用于基坑支护工程的可行性. [关键词]基坑;支护;土钉;全螺纹纤维树脂杆体;试验 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2014)19-0029-03 Application of Full Thread Fiber Polymer Bolt Instead of Reinforcement in Foundation Excavation Support Li Zhelin Guo Jinwu Ni Xiaorong China Xinxing Construction Derelopment General Co.Beijing 100039 China) Abstract:In foundation excavation support engineering soil-nailing wall is a mon method and steel bars are generally used which often lead to failure.On the other hand steel bars for soil nailing in tunnel engineering often bee obstacles increase the difficulty of construction and costs.Based on engineering practice and test this paper summaries the feasibility of thread fiber reinforced resin bolt support engineering of soil nailing used in foundation excavation. Key words:foundation excavation;supports;soil nailing;full thread fiber polymer bolt;tests 0引言 济效益. 在传统的土钉墙支护中,土钉杆体多采用钢1工艺原理 筋,但钢筋土钉易遭受腐蚀而失效.另一方面,埋 全螺纹纤维树脂杆体土钉是一种原位土体加 置于土层中的钢筋土钉对后期工程开槽也有很大 筋技术,是由设置在坡体中的土钉加筋杆件与其周 的影响,增加了施工难度和处理费用,同时也不利 围土体牢固黏结形成的复合体,通过拧紧杆件前端 于节约资源.全螺纹纤维增强树脂杆体是一种由 的螺母,使土钉与坡面的钢筋混凝土面层有效作 树脂和玻璃纤维复合而成的新型材料,与钢筋土钉 用,并将所施加的预应力由垫板传递至钢筋混凝土 相比,它具有易切割、抗腐蚀、抗拉强度高、质量轻、 面层和远端错固段,构成了类似重力挡土墙的支护 耐电磁等特点,目前广泛应用于隧道开...
2014年3月下 施工技术 第43卷第6期 CONSTRUCTION TECHNOLOGY 71 D0I:10.7672/5j52014060071 人民日报社报刊综合业务楼风管严密性控制技术 孟宪军,徐军广,白建军,焦峰 (中国新兴建设开发总公司,北京100039) [摘要]风管严密性对通风与空调系统的风量平衡有重大影响,是满足通风与空调系统的设计要求、保证送风量和 室内气流均匀的关键因素.结合人民日报社报刊综合业务楼工程,从施工图深化设计、制作、运输、安装等各个环 节影响镀锌钢板风管严密性的原因进行详尽的分析,并制定相应的控制措施,通过实践验证,相应措施取得较好 效果. [关键词]高层建筑;镀锌钢板;风管;严密性;控制措施;施工技术 [中图分类号]TU83 [文献标识码]A [文章编号]1002-8498(2014)06-0071-04 Strictness Control of Air Duct in the People's Daily Project Meng Xianjun Xu Junguang Bai Jianjun Jiao Feng China Xinxing Construction Derelopment General Co.Beijing 100039 China) Abstract:The strictness of air duct has great influence on the air-volume balance of air-conditioning system.It is the key factor to meet the design requirement of ventilation and air conditioning system and ensures the supply air-volume and even indoor air flow.Combining with the People's Daily project the influential factors of the strictness of galvanized steel air duct are analyzed from construction drawings design production transportation installation and other aspects and the corresponding control measures are put forward.The result shows that the measures have a good effect. Key words:tall buildings;galvanized steel plates;air duct;strictness;control;construction 1工程概况 刊综合业务楼示意. 人民日报社报刊综合业务楼工程空调系统按 满足不同功能、不同区域独立使用时的控制要求, 采用全空气空调系统,平面图C1部位空调系统风 管呈对称性均匀分布,C2和C3部位空调系统风管 主管道分布在核心筒两侧走廊内. 通风系统和防排烟系统按高区和低区单独设 置(通风系统中16层以下为低区系统,17层以上为 a工程效果 b工程平面 高区系统),通风系统分布在核心筒竖井中,防排烟 图1人民日报社报刊综合业务楼 系统分布在外框3格构柱封闭竖井内. Fig.1 The People's Daily pro...
施工技术 2014年3月下 68 CONSTRUCTION TECHNOLOGY 第43卷第6期 D0I:10.7672/sjs2014060068 人民日报社报刊综合业务楼小曲率 弧形风管施工技术 师拓,孟宪军,白建军,赵欢 (中国新兴建设开发总公司,北京100039) [摘要]针对人民日报社报刊综合业务楼工程中空调系统的通风管道围绕小曲率弧形结构安装的特点,通过对小 曲率弧形通风管道在弧形结构内安装施工方案的比选研究,在现场样板间进行风管安装验证,最终提出了全梯形 风管施工方案.经过对全梯形(风管)施工方案的节点控制和对安装完成的风管进行各项检测,实现了既定的施工 质量目标和施工效果. [关键词]高层建筑;小曲率;风管;拼接;施工技术 [中图分类号]TU83 [文献标识码]A [文章编号]1002-8498(2014)06-0068-03 Small Curvature Curved Duct Construction of the People's Daily Project Shi Tuo Meng Xianjun Bai Jianjun Zhao Huan China Xinxing Construction Development General Co.Beijing 100039 China) Abstract:Around the characteristics of small curvature curved structure installation for air conditioning system of the People's Daily project based on the scheme parison of curved ventilation pipe installation construction in the arcuate structure the duct installation verification is done between the example of the spot to determine the innovation trapezoidal duct construction scheme in the end.The joints of trapezoidal (duct)construction scheme are in control and duct installation is plete then the goal of the construction quality and construction effeet is achieved. Key words:tall buildings;small curvature;air duct;matching;construction 0引言 风管规格多、工程结构复杂、风管安装面积大,通风 随着我国经济水平的不断提高,人们的审美要管道施工难度大. 求越来越高,在建筑领域体现在建筑物造型越来越1工程重点及难点分析 复杂,改变了以往建筑的“方块形”外表.为配合不 1.1工程质量目标高 规则的土建结构,专业管线安装要随结构敷设安 开工伊始本工程就确定了确保“鲁班奖”的目 装,给专业管线安装施工带来一定的难度. 标,对机电安装提出了高标准,对施工质量提出了 人民日报社报刊综合业务楼工程建筑平面造 严要求.通风管道安装不仅要满足规范要求,还要 型呈“人”字形,地上32层,地下3层,建筑高度 弧形美观...
[关键词】地下工程;基坑;泥岩;旋流池;桩;土钉墙;监测 [中图分类号]TU753.3 [文献标识码]A [文章编号]1002-8498(2012)19-0031-03 ApplicationofCombinedManualHoleDiggingPileandSoilNailing WallSupportinginWhirlingPool ConstructioninMudstoneRegion Zhao Jianli,WuYanjun,Zhang Fengyong (CMTCC Shanghai Shisanye Construction Co.,Ltd.,Shanghai 201900,China) Abstract;Supporting technology bined manual hole digging pile with soil nailing wall was adopted in a whirling pool foundation excavation.The difficulties in construction were introduced.Supporting structure,drainage forms and construction process were also discussed in detail.Finally, the authors analyzed the deformation of structures nearby according to the monitoring data. Compared with the support structure of diaphragm walland interior wall, this technology can accelerate construction process,, reduce the cost and obtain good social and economic benefits. Key words:underground;foundation excavation;mudstone;whirling pool;piles;soil nailing wall;monitoring 1工程概况 管 北 某旋流池筒体直径16.6m,底板垫层底标高 -24.800m,基底为中风化泥质砂岩。
施工技术 2010年2月 54 CONSTRUCTION TECHNOLOGY 第39卷第2期 上海浦东国际机场F级跑道施工技术 李家宏,沈斌 (上海宝冶建设有限公司,上海200941) [摘要]上海浦东国际机场第2条跑道是国内建成的第1条F级跑道.针对工程量大,质量要求高、技术含量高、 气候条件复杂的特点,介绍F级跑道基层、面层施工工艺.通过对原材料的选择、面层混凝土配合比的优化以及基 层、面层施工工艺的改进等方面的研究,最终使上海浦东国际机场第2条跑道的内在质量和外观质量取得了明显 提高和良好效果. [关键词]上海浦东国际场;机场工程;F级跑道 [中图分类号]U416.2 [文献标识码]A[文章编号]1002-8498(2010)02-0054-04 Construction Technology of Airport Runway with F Level in Shanghai Pudong International Airport Li Jiahong Shen Bin Shanghai Baoye Construction Co.Ltd.Shanghai 200941 China) Abstract:The second runway of Shanghai Pudong International Airport is the first runway with F level in China.Based on the engineering characteristics including big amount high requirements of quality and technology as well as plex climate conditions construction technologies of base and surface course in the runway with F level are introduced.Meanwhile raw materials are selected mix proportion of surface concrete is optimized and construction technologies of base and surface are improved to enhance intemal quality and appearance quality in the second runway of Shanghai Pudong International Airport which can gain good effect. Key words:Shanghai Pudong International Airport;airport engineering;runway with F level 上海浦东国际机场二期飞行区跑道工程是我国国混凝土411286m3. 内建成的第一条F级跑道,包括1条长3800m、宽60m 2)质量要求高工程整体达到精品工程. 的主跑道;2条滑行道;4条快滑道;2条垂直联络道, 3)技术含量高本工程底基层、基层、水稳层需采 基层材料总量达43.2万m3 混凝土总量达41.1万m3用摊铺机进行铺设,混凝土振搞需采用自行式高频排 (见图1).由于第2条跑道量与第1条跑道工程基本式振捣器振捣. 相同,但建设时间缺少了8个月,给正常施工和管理带 4)气候条件复杂施工期间需经历雨季和高温天 来了很大难度;经...
2012年1月上 施工技术 第41卷第356期 CONSTRUCTION TECHNOLOGY 75 上海市人民路隧道跨越既有隧道的深基坑施工技术 刘旻 (上海市基础工程有限公司,上海200433) [摘要]以上海市人民路越江隧道浦西岸上段基坑施工为例,介绍了在进行地铁区间隧道上方深基坑施工过程中 所应用的土体微扰动加固、抽条平衡卸载开挖及区间隧道内监测和压载等关键技术,成功克服了市中心老城厢地 区的诸多施工难点,在顺利完成隧道施工任务的同时,确保了10号线区间的安全. [关键词]隧道工程;越江隧道;深基坑;土体微扰动加固;平衡卸载;监测;施工技术 [中图分类号]TU753;U455 [文献标识码]A [文章编号]1002-8498(2012)01-0075-03 Foundation Excavation Technology of Renmin Road Tunnel Crossing Above Metro Tunnel Liu Minmin Shanghai Foundation Engineering Co.Lad.Shanghai 200433 China) Abstract:Based on foundation excavation construction of Renmin road tunnel the author introduces key technologies such as soil weak perturbation reinforcement balanced striping excavation as well as monitoring and loading in tunnel which successfully overe the difficulties in construction and ensure the safety of metro line 10. Key words:tunnels;crossing-river tunnels;deep foundation excavation;soil reinforcement with weak perturbation;balanced unloading;monitoring;construction 随着上海城市轨道交通网络的不断完善、核心1工程概况 城区地下空间开发的不断深人、城市道路交通网络 人民路隧道浦西岸上段包括敞开段、光过渡 的立体化建设,地铁隧道、地下空间、公路隧道等之段、暗埋段和接收井,全长517m 沿人民路东西走 间的互相穿越建设的问题将越来越多.如何在不 向,其中暗埋段PX14 PX15段位于人民路河南南路 影响已有隧道安全和使用性能的前提下,在其立体 路口,开挖深度7.9m 局部落低坑开挖深度10.6m 投影面内进行地下工程的建设,已成为城市地下空 采用地下连续墙围护;轨道交通10号线豫园站位于 间开发的新课题,并受到了相关领域的广泛关注. 基坑南侧,已建的豫园站一南京东路站盾构法隧道 上海市人民路越江隧道工程是浦江两岸交通 区间南北走向,与人民隧道十字交叉,区间隧道顶 枢纽的重要通道之一,起到进一步沟通浦江两岸、 部埋深16.8m 距离暗埋段坑底8.9m.该基坑施工 为延安路隧道分流缓解交通压力等作用.隧道主 时,隧道东侧的结构段已先期完成施工,西侧的结 线西起人民路、福建南路路口,向东通过豫园商业 构段尚未开挖.人民路隧道与10号线区间隧道的 区,穿越黄浦江后于浦东东昌路银城路“小陆家嘴” 位置关...
2013年10月下 施工技术 第42卷第20期 CONSTRUCTION TECHNOLOGY D0I:10.7672/sgjs2013200001 上海中心大厦钢结构深化设计难点分析 高继领,李勇军 (江苏沪宁钢机股份有限公司,江苏宜兴214231) [摘要]上海中心大厦总高度632m 总用钢量约为10万t.作为超高层建筑,由自身结构的特点决定,钢结构专业 与现场吊装、土建、幕墙、电梯等众多专业密切相关,从而导致深化设计存在构件数量大、尺寸大、制约因素多、结构 复杂等诸多难点.从结构特点及相关专业的要求角度出发,介绍了上海中心大厦项目钢结构深化设计的难点,包 括钢板剪力墙结构中流消孔、长圆孔开设,模板拉接器设置,核心筒伸臂桁架结构钢筋连接器设置,简外巨柱结构 流淌孔、浇捣孔设置,外简桁架结构,幕墙连接结构等. [关键词]高层建筑;钢结构;钢板剪力墙;桁架;节点;深化设计 [中图分类号]TU758.11 [文献标识码]A [文章编号]1002-8498(2013)20-0001-03 Difficulty Analysis on Steel Structures Detailed Design of Shanghai Tower Gao Jiling Li Yongjun (Jiangsu Huning Steel Mechanism Co. Ltd.Yixing Jiangsu 214231 China) Abstract:As a super tall building the steel structures installation of Shanghai Tower with 632m height was closely related with other construction of hoists civil engineering curtain wall elevator and so on. So there were some difficulties for its detailed design such as many ponents large sizes many constrains and plex structures.The difficulties for steel structures detailed design of Shanghai Tower were introduced in detail including the flowing hole and long circle hole setting and tensile connector setting of steel plate shear wall structure steel bars tensile connector setting of core tube cantilevered truss structure flowing hole and pouring hole setting of huge column structure outside tube truss structure curtain wall connection structure and so on. Key words:tall buildings;steel structures;steel plate shear wall;trusses;joints;detailed design 1工程概况 上海中心大厦位于上...
2012年9月下 施工技术 第41卷第373期 CONSTRUCTION TECHNOLOGY 31 上海中心大厦裙房基坑逆作法支护体系实测分析 翟文信 (上海建科工程咨询有限公司,上海200032) [摘要]上海中心裙房基坑采用两墙合一的地下连续墙作为围护、结构梁板替代支撑并采用全逆作法施工.介绍 了全逆作法基坑的支护体系及施工工艺,从逆作法施工支护体系的实测数据人手,通过对立柱桩的偏位及隆沉、地 下连续墙的侧向变形、立柱桩与地下连续墙的差异沉降等实测数据分析,对逆作法施工全生命周期支护体系的安 全状态进行评价. [关键词]高层建筑;基坑;逆作法;支护体系;变形;差异沉降 [中图分类号]TU753.1 [文献标识码]A[文章编号]1002-8498(2012)18-0031-04 Monitoring Analysis on Supports of Reversed Constructed Podium Foundation Excavation in Shanghai Tower Zhai Wenxin Shanghai Jianke Engineering Consulting Co. Lid.Shanghai 200032 China) Abstract:The foundation excavation of podium in Shanghai Tower is constructed with reversed method which adopting diaphragm wall as supporting structure of the foundation excavation and external wall of basement and adopting basement beams and floors as the supports of foundation excavation.The supporting system and construction technology of the reversed constructed foundation excavation are introduced.The monitoring data of supporting system are analyzed to evaluate the safety status during the whole construction process such as deviation and settlement of steel pipe columns lateral deformation of diaphragm walls differential settlement between steel pipe columns and diaphragm walls. Key words:tall buildings;foundation excavation;reversed construction method;supports;deformation; differential settlement 1工程概况 影部分,为直径121m的圆状基坑,采用明挖顺作法 上海中心大厦工程地处陆家嘴金融中心核心施工,开挖深度约31.1m;裙房基坑呈不规则的四边 区,地下5层,地上主楼121层,裙房5层,总建筑面形(扣除中间圆状主楼基坑),采用逆作法施工,开 积约573223m2.北侧为88层的金茂大厦,其地下...
[关键词】高层建筑;幕墙;支撑;转接件;测量;定位 [中图分类号】TU198.6;TU714[文献标识码】A[文章编号]1002-8498(2013)15-0013-04 Surveying and Positioning of the Support System of Pure Overhanging CurtainWall of theShanghai Tower Yang Guiming,Xu Xiangdong,Lang Haochuan, Yu Qingyang (Shanghai Jianke Engineering Consulting Co.,Lad.,Shanghai200032,China) Abstract:The Shanghai Tower is 632m in height. The double-skin curtain wall is adopted. The a large amount of work,and working condition of the site is plex. Based on the features of the curtain wall, this paper introduces methods of the construction surveying and pares the data of interior working with the BIM. Then the paper introduces construction methods including the setting up of thre- dimensional control network,production of curtain wall support,the precision of measurement correction of lifting of curtain on site and the installation precision control of curtain connector. These methods can ensure the installation of curtain plate and provide theory basis to the flexible vertical helix appearance effect of Shanghai Tower. Key words:tallbuildings; curtain walls; supports; connectors; measurement; positioning 0引言柔性垂直螺旋体(见图1)。