[关键词]隧道工程;盾构;全断面砂层;硅土改良;沉降;施工技术 [中图分类号】U455.43【文献标识码]A[文章编号】1002-8498(2012)01-0069-06 Key Construction Techniques of EarthPressureBalance Shield in the WholeSectionSandLayer YangYongqiang (Track Traffc Engineering Co. ,ld of China Railway No.1 Group,Xi'an,Shaanxi710054,China) Abstract;Because sand layer in less fine particles,possesses cohesion small,big internal friction angle, the high permeability coefficient,poor stability and big density and other characteristics,there are technical problems like driving parameters incoordination, earth pressure balance tunneling mode dificult to build,equipment badly worn and settlement difficult to control when earth pressure balance shield sand layer is the main reason for the shield tunneling dificulties,the author adopts the method bining the engineering test, theoretical analysis and practical application, studies engineering practice and construction key technologies such as soil amelioration with injection bentonite mud primarily and foam, and settlement control. Good results have been achieved and the construction experience is summarized. Key words:tunnels; shields; the whole section sand layer; soil amelioration;settlement; construction
近些年来,我国开展大规模的城市地铁工程建流动性差、稳定性差等特性,经刀盘切削到土仓中 设,盾构法施工技术以其安全可靠、绿色环保的优的砂土塑流性差,土压平衡盾构在砂层(尤其是全 势在地下工程领域取得突飞猛进的发展。
施工技术 2015年10月上 78 CONSTRUCTION TECHNOLOGY 第44卷第19期 D0I:10.7672/8js2015190078 土体滑移对被动加载型锚杆的影响分析* 张伟,王政1,程佳佳2 (1.河南科技大学土木工程学院,河南洛阳471023;2.天津大学管理与经济学部,天津300073) [摘要]以被动加载型锚杆为研究对象,建立了关于锚杆和土壤的力学模型,研究了土体滑移对锚杆造成的影响. 用ANSYS对选取的错杆和足够大区域土体进行分析,采用弹簧单元Spring-damperl4来模拟外界土体和该区域之 间的联系,并选取Drucker-Prager材料模型来描述土体的本构关系.研究结果表明,当锚杆受到沿错杆垂线方向移 动的土体作用时,位移变形是不均匀的,最大位移变形处在杆的端部;应力分布沿杆长方向也是不均匀的,铺杆在 靠近端部位置剪应力达到最大值. [关键词]土体滑移:锚杆;被动加载;模拟分析 [中图分类号]TD353.6 [文献标识码]A [文章编号]1002-8498(2015)19-0078-03 Analysis on the Influence of Soil Slip on Passive Loading Anchor Zhang Wei Wang Zheng' Cheng Jiajia2 (1.School of Ciril Engineering He'nan Unirersity of Science and Technology Luoyang He'nan 471023 China; 2.College of Management and Economics Tianjin Unirersity Tianjin 300073 China) Abstract:This paper aimed to study passive loading anchor mechanical models of anchors and soil were established.The influence of soil slip on anchors was studied.ANSYS software was selected to analyze anchors and large enough area soil Spring-damperl4 element was used to simulate connections between outside soil and this area.Drucker-Prager material model was used to describe constitutive relation of soil.The results show that displacements are uneven when anchors are subject to effect of soil movement along vertical direction of anchors.The maximum of displacement locates at the end of anchors.Stress distribution along the direction of anchors is also uneven.The maximum of shearing stress locates near the end. Key words:soil slip;a...
施工技术 2015年4月上 102 CONSTRUCTION TECHNOLOGY 第44卷第7期 D0I:10.7672/5j52015070102 土中无轴宽型螺旋带现场拉力试验研究* 卢清国,曹元义 (北京工业大学建筑工程学院,北京100124) [摘要]针对在土中隧道掘进机前方布置多个无轴宽型螺旋器向土中旋入,螺旋旋入后产生的牵拉力使整个掘进 机前行的原理,制作了采用无轴宽型螺旋带方式牵拉前行的土中自行走式隧道掘进机,并进行了现场拉力试验研 究.通过理论分析计算,参照前期小型螺旋试验结果,通过在现场的掘进样机的牵拉试验,分析并得出了无轴宽型 螺旋带在掘进样机前行中可提供的拉力,为螺旋牵拉结构的选型和自行走式隧道掘进机的进一步开发和应用提供 参考依据. [关键词]隧道工程:自行走式掘进机:无轴宽型螺旋带:螺旋牵拉:试验 [中图分类号]U455.44 [文献标识码]A [文章编号]1002-8498(2015)07-0102-03 The Tension Research of Shaftless Wide Type Spiral Band in Soil Lu Qingguo Cao Yuanyi (The College of Architecture and Civil Engineering Beijing University of Technology Beijing 100124 China) Abstract:This paper aimed at the several wide type spirals without shaft placed in front of the tunnel boring machine which could provide pulling force and drive the whole machine forward when screwed in soil.The authors produced the self-propelled tunnel boring machine driven by wide type spiral band without shaft and did the field pull test.Through theoretical analysis refering to the pull test of small spiral earlier and the field pull test of boring machine the authors get the pulling force provided by wide type spiral band without shaft.Finally they get the selection basis of spiral pulled structure and the future development and application basis of self-propelled tunnel boring machine. Key words:tunnels;self-drive advancing machine;wide type spiral without shaft;screw driver;tests 0引言 的反力.利用此反力,通过推或拉自身结构使掘进 掘进机是一种应用于铁路、公路、城市市政等 机在土中“蠕动”伸缩式前进,是一种新的掘进机外 地下工程、隧道领域的高科技...
施工技术 2010年2月 86 CONSTRUCTION TECHNOLOGY 第39卷第2期 喷涂硬泡聚氨酯在屋面防水工程中的应用 王亮 (北京建筑工程学院土木与交通工程学院,北京100044) [摘要]不同类型的喷涂硬泡聚氨酯材料性能差异明显,可满足不同的屋面功能要求.通过工程实例,论述屋面采 用Ⅱ型硬泡聚氨酯和SBS改性沥青防水卷材构筑复合防水体系设计、施工的主要内容及质量控制措施,阐明了Ⅲ 型喷涂硬泡聚氨酯因具有良好防水性能,可作为屋面一道独立防水设防. [关键词]喷涂硬泡聚氨酯;保温防水层;倒置式屋面 [中围分类号]TU761.11 [文献标识码]A[文章编号]1002-8498(2010)02-0086-03 Application and Analysis of Polyurethane Spray Foam in Roof Waterproof Engineering Wang Liang (School of Civil Engineering and Traffic Engineering Beijing University of Cioil Engineering and Architecture Beijing 100044 China) Abstract:Different types of polyurethane spray foam are quite distinct from their material performance as can satisfy different requirements of roof function.In this paper design construction and quality control measures of a pound roof waterproofing system consisting ofⅢtype polyurethane spray foam and SBS modified bitumen waterproof roll roofing are illustrated by way of the actual project cases.The author demonstrates thatⅢtype polyurethane spray foamand can be regard as a separate waterproof barroer due to its favourable waterproof properties. Key words:polyurethane spray foam;insulation and waterproof layer;inversion type roof 喷涂硬泡聚氨酯即现场使用专用喷涂设备在屋面60mm厚Ⅲ型喷涂硬泡聚氨酯和单层4mm厚SBS改性 (或外墙基层上)连续多遍喷涂发泡聚氨酯后,形成的沥青防水卷材构成屋面复合防水体系,并将硬泡聚氨 无接缝硬质泡沫体.根据《屋面工程技术规范》酯作为屋面一道独立防水设防,同时又作为保湿层,以 GB50345-2004第4.2.10条规定,现喷硬质聚氨酯等泡充分发挥材料性能. 沫塑料保温层等5种情况,均不得作为屋面的一道防 鉴于硬泡聚氨酯保温防水层上不得直接进行防水 水设防.由此,在实际工程屋面防水设计中,绝大多数材料热熔、热贴法施工,且硬泡聚氨酯对沥青类和高分 情况下均未明确将硬泡聚氨酯作为一道独立的防水设 子类防水卷材与防水涂料均有...
2010年3月 施工技术 第39卷第3期 CONSTRUCTION TECHNOLOGY 79 喷射聚合物保温砂浆施工技术 张学伟,刘卫东,苏海华,邹文宝,肖煌俊 (上海理工大学城建学院,上200093) [摘要]在室内试验和工程实践的基础上,得出采用喷射聚合物保温砂浆施工技术是一种行之有效的墙体内保温 施工方法,尤其在历史保护建筑的改造中优势更加明显,它可以把墙体加固和墙体内保温结合起来,同时又考虑了 保护优秀历史建筑的原貌风格.该施工法用黏结强度较高的聚合物砂浆作为界面层,同时在墙体与界面层之间紧 贴墙面加钢丝网,有效地加固墙体;其喷射施工方式使得墙体内保温层连续均匀,有效防止了热桥的影响.简要介 绍了聚合物保湿砂浆的性能,着重闸述喷射案合物保温砂浆的施工工艺以及其加固保温机理. [关键词]聚合物保温砂浆;历史保护建筑;喷射施工技术;节能改造;外墙内保温 [中图分类号]TU526.826 [文献标识码]A[文章编号]1002-8498(2010)03-0079-03 Construction Technology of Spraying Insulation Polymer-modified Mortar Zhang Xuewei Liu Weidong Su Haihua Zou Wenbao Xiao Huangjun Department of Civil Engineering University of Shanghai for Science and Technology Shanghai 200093 China) Abstract:Based on indoor experiments and engineering practice the authors find out that construction technology of spraying insulation polymer-modified mortar is effective for interior insulation construction of exterior wall particularly in renovation and rehabilitation projects of excellent historic buildings.This technology can bine interior insulation with strengthening of wall simultaneously it can protect the original style of historic buildings.This technology is using polymer-modified mortar with outstanding bond strength as interface layer and in which laying steel mesh cling to wall surface to reinforce the wall effectively.The spraying construction method makes insulation layer continuous and well-distributed which prevents the effects of the thermal bridge significantly.Some performances of insul...
2017年7月上 施工技术 第46卷第13期 CONSTRUCTION TECHNOLOGY 141 D0I:10.7672/8js2017130141 喀斯特地貌综合管廊爆破施工关键技术 高远,陈清作,林贵松,刁凯,李奉雨 (中建城市建设发展有限公司,北京100037) [摘要]喀斯特地貌因其地质情况复杂,且占地面积极广,是管廊建设的一个重点研究课题.喀斯特地貌以岩层为 主,内部溶洞、节理发育,兼有泥夹石情况,爆破施工难度大.以六盘水市地下综合管廊为例,系统分析了喀斯特地 貌区域爆破的难点,研究喀斯特地貌的爆破施工技术. [关键词]综合管廊;喀斯特地貌;爆破;施工技术 [中图分类号]TU990.3 [文献标识码]A [文章编号]1002-8498(2017)13-0141-03 Key Blasting Construction Technology of Pipe Gallery in Karst Landform GAO Yuan CHEN Qingzuo LIN Guisong DIAO Kai LI Fengyu CSCEC City Construction Derelopment Co.Lid.Beijing 100037 China) Abstract:The karst landform is an important research subject of pipe gallery construction because of its geologieal condition and extremely broad area.The karst landform takes the rock layer primarily the internal limestone cave and jointing growth the putty to clamp the stone situation the blast working difficulty is big.Based on Liupanshui underground pipe gallery project construction this paper analyzed difficulties in blasting and studied the blasting technology. Key words:pipe gallery;karst landform;blasting;construction 0引言 酸盐类岩石)进行溶蚀作用产生的地貌现象.我国 所谓“综合管廊”(又名共同沟),即在地下设置 喀斯特地貌主要分布于贵州、云南、广西、四川、湖 专供各种公用事业摆放缆线或管道的隧道或沟道.南、湖北等地. 综合管廊是合理利用地下空间资源,解决地下各类 六盘水市地下综合管廊试点城市PPP项目位于 管网布置困难的有效途径,在日本及欧洲国家已有 贵州省六盘水市,地处贵州西部,与云南接壤,属于喀 近50年的发展历史.目前国内实施的“地下综合 斯特山区城市.作为西南岩溶中心,境内绝大部分为 管廊”方式是把市政、电力、通信、燃气、供水排水、 山区,岩溶地貌比较发育,碳酸盐岩石分布面积广,占 热力等各种管线集于一体,在城市道路的地下空间 土地总面积的63.18%左右,约6263km2. 建造一个集约化的隧道,以做到地下空间的综合利1工程概况 用和资源共享. 六盘水市是全国首批10个地下综合管廊试点 综合管廊一般为沿城市道路修建,基槽狭长,城市之一.本研究依托荷泉路综合...
2017年6月上 施工技术 第46卷第11期 CONSTRUCTION TECHNOLOGY 105 D0I:10.7672/5j52017110105 喀斯特地貌下城市地下综合管廊防水技术 潘学斌,高远,林贵松,刁凯 (中建城市建设发展有限公司,北京100037) [摘要]在全国城市地下综合管廊大规模建设的背景下,六盘水作为首批试点城市之一,且作为其中唯一一个喀斯特 地貌下的城市,管廊建设存在很多特殊难题.防水是这些难题中最为突出的一个.六盘水地下水系发达且水位很 高,且管廊防水要求很高,六盘水的管廊防水解决方案尤为重要.详细介绍了地下管廊的防水要求及防水施工工艺. [关键词]地下工程:综合管廊;喀斯特地貌;防水技术;施工技术 [中图分类号]TU99 [文献标识码]A [文章编号]1002-8498(2017)11-0105-04 Waterproofing Technology of Underground Pipe Gallery for Karst Geomorphology in City PAN Xuebin GAO Yuan LIN Guisong DIAO Kai CSCEC City Construction Derelopment Co.Lad.Beijing 100037 China) Abstract:Under the background of massive construction of city underground synthesis pipe gallery Liupanshui as one of the first batch pilot cities is only the city under a karst landform the pipe gallery construction has the special difficult problem.The waterproofing is the most prominent one in these difficult problems.Liupanshui ground water system is developed and water level is very high and pipe gallery waterproofing request is very high Liupanshui's pipe gallery waterproofing solution is especially important.This paper introduces waterproofing request and waterproofing construction process. Key words:underground buildings;pipe gallery karst synthesis;waterproofing;construction 六盘水地区属于喀斯特地貌,地下石林溶洞密20.9m 综合节点局部开挖达到8.95m 边坡坡比1:1. 布,地下水系发达且水位很高;且六盘水地区年降 综合管廊标准段模拟建成效果如图1所示. 水量大,下渗水量大.管廊作为地下结构,有些部 T00 分甚至低于雨季的地下水位.以上这些原因导致 103310 综合舱 污水舱 六盘水地区地下综合管廊的防水难度很大. 1工程概况 雨水枪目 100温垫 六盘水市作为全国首批10个地下综合管廊试 1002600 2000100 300 300300 ...
2017年9月下 施工技术 第46卷第18期 CONSTRUCTION TECHNOLOGY 107 D0I:10.7672/5j52017180107 商业综合体深基坑支护设计及施工技术 李建雄,梁超1,周立1,马磊,柴木叶2 (1.内蒙古工业大学土木工程学院,内蒙古呼和浩特010051;2.内蒙古银行股份 有限公司,内蒙古呼和浩特010010) [摘要]介绍了在桩锚联合支护体系下,深基坑施工过程中,由于设计变更对施工方案进行了调整和优化,并通过 有限元软件的受力性能分析及验算,在保证基坑施工安全稳定性的前提下实现了经济性. [关键词]基坑;深基坑;错索;桩;有限元分析 [中图分类号]TU753 [文献标识码]A[文章编号]1002-8498(2017)18-0107-03 Design and Construction of Deep Foundation Excavation Supporting Technology in Commercial Complex LI Jianxiong' LIANG Chao' ZHOU Li' MA Lei' CHAI Muye? (1.Civil Engineering Institute Inner Mongolia University of Technology Hohhot Inner Mongolia 010051 China; 2.Bank of Inner Mongolia Co.Ltd.Hohhot Inner Mongolia 010010 China) Abstract:Under the pile anchor bined support and in the process of deep foundation excavation construction due to design changes to the construction scheme for the adjustment and optimization are introdueed.Through the finite element software of mechanical performance analysis and calculation under the premise of ensuring the safety and stability of foundation exeavation construction the economy is realized. Key words:foundation excavation;deep foundation excavation;anchor rope;piles;finite element analysis 商业综合体通常基坑开挖面积大,深度深,而 北 周边建筑密度往往比较大,因此做好该类基坑支护 大唐国际 V区区 工程的设计施工,确保基坑安全和稳定尤为重要. 拟建酒店 1工程概况 (26) V区 呼和浩特市时代广场商务中心项目位于新华 西 拟建公寓A拟建公寓B 东 (29)1V区(28) 西街以北,新华广场以东.拟建项目为框架剪力墙 高层公共建筑高层酒店1区 (22) (18) 结构,包括3层地下室和地上26层的酒店、29层的 新华大街 南 公寓A、28层的公寓B 如图1所示.本工程基坑开 图1基坑平面布置 挖东西长约184m 南北宽约165m 拟开挖深度约在 Fig.I Layout of foundation exc...
【关键词】项目管理;商业智能;施工企业 [中图分类号】TU71【文献标识码】A[文章编号]1002-8498(2013)10-0089-05 Research andImplementation ofBusinessIntelligencein ProjectManagementof ConstructionEnterprises Zhou Yuguang (China Orerseas Group Co. ,Ltd. ,Hong Kong) Abstract: Construction enterprises developed and implemented various information systems in recent years, large amounts of data were generated when using these information systems,which includes valuable information for projectmanagement.However, due to the dispersion and isolation of the data,it is dificult to using these data for management and decision-making purpose. Business intelligence is a key technology to promote the project management level of construction enterprise by efectively data integration and analysis. The paper discussed the pattern of project management and the application of business intelligence, bined with the situation of China Overseas Holdings Limited to establish the business intelligence system of construction enterprise.At the end of the paper,author summarized the application results and discussed the future direction. Key words:project management;business intelligence; construction enterprises 0引言够形象、全面、及时、准确地为决策者提供把握企业 20世纪90年代以来,信息技术不断创新,信息脉搏的窗口。
施工技术 2016年8月上 42 CONSTRUCTION TECHNOLOGY 第45卷第15期 D0I:10.7672/8js2016150042 同步液压集群交替顶升技术在大跨径双曲面坡 椭圆形钢网架施工中的应用* 吴兴宏1,路亚屁2 (1.湖北工程学基本建设管理处,湖北孝感432000:2.涮北工程学院土木工程学院,湖北孝感432000) [描]湖北工程学院已建成的体育馆屋面大跨径双曲面坡椭形铜网察工程建筑高度高,平面异形,传统脚手架 搭设面大,容折费用高,工序繁,高空作业存在容全隐患不易塔设施工平台,容装质量不易俱障,网架投影部 分常暂停施工.过研究同步液压集群交替项升技术在大跨径双曲面破钢网容梨中的应用,在地面或接近地面 的位置完成安装与检测工作.工程实践表明,同步液压集群交替顶升技术具有顶升费用低、网架提影部分可以交 叉或同步施工等优点. [关键词]体育馆;钢传构;安;液压项升;双曲面坡;网架 [中图分类号]TU758.11 [交献标识码]A [交章编号]1002-8498(2016)15-0042-03 Application of Synchronous Hydraulic Jack-up Technique on Large-span Oval Steel Space Truss Construction Wu Xinghong' Lu Ya'ni (1.Basic Construction Management Office of Hubei Engineering Unizersity Xiaogan Hubei 432000 China; 2.School of Civil Engineering Hubei Engineering Unirersity Xiaogan Hubei 432000 China) Abstract:Steel structure project with traditional scaffolding have big installation area and high building height which have lots of problems such as the high cost of installing and dismantling tedious process potential safety hazard working on the higher levels construction platform are not easy to built installation quality is hard to guarantee.While the synchronous hydraulic cluster alternating jack-up technique have many advantages for instance about 80%of the construction work quantity can be pleted in the location of the ground or close to the ground low jack-up cost cross or synchronous construction of grid projection.Combining with the large-span oval steel space truss structure engineering which ...
施工技术 2014年9月下 10 CONSTRUCTION TECHNOLOGY 第43卷第18期 D0I:10.7672/sgjs2014180010 可调节型套筒在钢筋笼连接中的应用研究* 李智斌,赵杰,邵康节,张涛,冯大斌,赵基达 (中国建筑科学研究院建筑结构研究所,北京100013) [摘要]提出的可调节型套筒及施工方法可使剥肋滚轧直螺纹钢筋连接技术成功应用于钢筋笼的连接,且钢筋接 头性能可达到《钢筋机械连接技术规程》GJ107一2010中I级接头的要求,并克服常规钢筋笼连接技术的部分 缺陷. [关键词]钢筋笼;机械连接;可调节型套筒;应用 [中图分类号]TU755.332 [文献标识码]A [文章编号]1002-8498(2014)18-0010-03 Application Research on Adjustable Sleeves for the Connection of Rebar Cages Li Zhibin Zhao Jie Shao Kangjie Zhang Tao Feng Dabin Zhao Jida Institute of Building Structures China Academy of Building Research Beijing 100013 China) Abstract:With the adjustable sleeves and construction methods introduced in this paper the rolled parallel thread rebar splicing after stripping ribs technology can be applied for the connection of rebar cages successfully and its performance can meet the requirements of grade I rebar splice in Technical specification for mechanical splicing of steel reinforcing bars JGJ107-2010.Meanwhile some other disadvantages of mon rebar splicing technology for rebar cages can be overe. Key words:rebar cages;mechanical contact;adjustable sleeves;application 0引言 带标准螺纹钢筋 带加长螺纹钢筋 钢筋笼连接是钢筋工程施工中常见的问题,传 统的搭接连接方式存在材料浪费、成本较高的问 题,而焊接连接方式则存在施工速度慢、质量较难 带标准螺纹钢筋连接件 控制、施工费用较高等问题.近些年来,机械连接 带加长螺纹钢筋 特别是直螺纹钢筋连接工艺,如直接滚轧直螺纹、 镦粗直螺纹、剥肋滚轧直螺纹等工艺,由于质量稳 定、经济合理,已成为解决这些问题的有效途径,越 带标准螺纹钢筋连接件带加长螺纹钢筋 来越多地用于钢筋笼连接.如图1所示,要完成钢 筋笼中钢筋的直螺纹连接,需要解决钢筋笼钢筋不 夏型 能转动的问题,一般来说,需要在待连接钢筋的其 带标准螺纹钢筋连接件带加长螺纹钢筋 中1根上制作加长螺纹,另1根钢筋制作标准螺纹 (见图1a) 先将连接件(套筒)全部拧入1根钢筋的 加长螺纹(见图1b) 待另1根带标准螺纹的...
[关键词]加固;移位;托换;顶升 [中图分类号]TU746.4 [文献标识码]A [文章编号]1002-8498(2013)16-0046-04 Application of AdjustableMoving-feet in Large SizeBuildingMovingProject Wu Erjun',CaoZhaona',YangYong²,HanZhenyong²,Zhao Dianfeng (1.College of Civiland Transportation Engineering,Hohai University,Nanjing,Jiangsu 210098,China; 2.TianjnUrbanConstructionGroupTianyanBuildingTransportationLmitedCompany,Tianjin300210,China; 3.Shanghai Tonggang Building Construction Ld.,Shanghai 200245,China) Abstract:Based on the analysis of technical requirements ofmobile pedestals in building transportation engineering,the characteristics of rollers,sliding supports and wheel trailer were discussed. Combined with the Haojing Building moving project with multiple routes,the selection process of moving-fet in large sizebuildingmovingprojectwasdiscussed,and theimprovement ofadjustable sliding supportswas put forward,the position of adjustable sliding support displacement control system were also introduced simply.In view of several problems in construction,the corresponding measures were provided. Key words:strengthening;shift;underpinning;lifting 近年来,以城市土地资源优化利用,提升城市功绕转轴1整体旋转82°,然后绕转轴2旋转3°,最后 能和品质,建设可持续发展的城市环境为目标的第二纵向平移12.6m移至规划新址2。
施工技术 2012年8月上 50 CONSTRUCTION TECHNOLOGY 第41卷第370期 可调制环保面砖涂料施工技术 曹所江1,徐志坚1,刘红军2 (1.扬州大学,江苏扬州225009;2.江苏圣泰建设有限公司,江苏泰州223000) [摘要]普通涂料外墙饰面易开裂是较为普遍的质量通病,面砖涂料的诞生和工程应用,表现明显优势;该工艺与 外保温系统配合施工,在外墙保温墙面及高层建筑使用可调制环保面砖涂料,大小可以调整,颜色可以根据设计调 色,面砖成型好,施工灵活,比较好的克服了开裂、空鼓、渗漏等通病. [关键词]装饰;面砖;涂料;施工技术 [中图分类号]TU767.3 [文献标识码]A[文章编号]1002-8498(2012)15-0050-02 Construction Technology on Adjustable Environment-friendly Face Brick Coating Cao Suojiang' Xu Zhijian' Liu Hongjun2 (1.Yangzhou University Yangahou Jiangsu 225009 China; 2.Jiangsu Shengtai Construction Co.Ltd.Taizhou Jiangsu 223000 China) Abstract:The normal coating decorated surface of outer wall is easy to crack.The naissance and engineering application of face brick coating show obviously advantages.The face brick coating is used on external insulation wall.In tall buildings the face brick coating can adjust dimension and color has good form effect and is easy to construct.It also solves quality problems such as crack empty drum and leakage. Key words:decoration;face brick;coating;construction 在国家节能政策的指导下,外墙外保温系统应结层、保温层、玻纤网格布、薄抹面,基础上完成可 用已比较普遍,过去在外墙饰面材料中,各种涂料、调制环保面砖涂料饰面层施工. 面砖等饰面材料为丰富建筑立面起了重要作用,而 2)饰面层施工方便,既可批刮,也可喷涂,不需 面砖以其特有的质感也备受设计者、开发商的青 切割,不需勾缝,不空鼓脱落,简便灵活,表面平整, 睐;而今在保温外墙面中面砖的使用,尤其在高层可实现花岗岩、面砖等质感效果. 建筑中受到了较大的限制,甚至被人们所拒绝. 3)大小、长短可调控,颜色可调制,横竖分格方 江苏圣泰建设有限公司承建的扬州运河一号向可控制,窗边、外墙阴阳角施工灵活、方便. 公馆、杭州世茂滨江花园等工程采用可调制环保面 4)省料、省工、省时.①省料节省了以往面 砖涂料施工,取得了较好的效果,优势突显;该工艺 砖的施工切割损耗、运输损耗,避免材料浪费.② 与外保温系统配合施工,有效解决了以往外墙普通 省工施工简便灵活,可喷涂、可批刮,节省了面砖 涂料抹面易开裂等问题,在外墙保温墙面及高层建黏...
[关键词】信息化;建筑信息模型;可视化;建筑施工动画 [中图分类号】TU17[文献标识码】A【文章编号】1002-8498(2015)06-0064-03 Discussion on theVisualizationinBuildingConstructionEnterprises Hou Chunming,Ren Zhiping,Du Fuxiang,Zheng Ziguang,Dong Huanhuan (China Construction Third Engineering Co.,Ld.Chengdu Construction Company,Chengdu,Sichuan 610041,China) Abstract:With the development of puter technology,the construction industry hasben considerable developed in information aspect,which had relied on the planar,professional, sophisticated construction drawings for construction. This paper describes series of three-dimensional softwares application in the construction enterprises,such as 3ds Max,Revit software. The software application increased the panies bidding advantages,the construction cases are directly showed in the construction stage,the construction process and field conditions are animated to realize construction field reasonable arrangement. Key words:information;building information modeling(BIM);visualization; construction animation
可视化(visualization)是利用计算机图形学和建筑单位投标是依靠招标文件、设计图纸、工 图像处理技术将数据转换成图形或图像在屏幕上程量清单等进行算量、进度计划安排、总平面布置、 显示出来,并进行交互处理的理论、方法和技术。
施工技术 2013年1月下 58 CONSTRUCTION TECHNOLOGY 第42卷第2期 可移动单侧支模体系在半封闭施工环境中的应用 郑永超,孙瑞昂 (中建一局集团第三建筑有限公司,北京100161) [摘要]为保证深基坑的稳定性,基坑围护常采用多道内支撑结构,且顶部常带有封板.因受施工条件复杂、场地 狭小等原因限制,地下工程外墙多采用单侧支模施工工艺.但围护结构中的多道内支撑及顶部封板给大模板等物 料倒运带来困难,通过对单侧支模工艺进行优化、划分单元节、底部采用可移动式行走轮设计,解决单侧模板倒运 问题.以天津于家堡03-21地块地下空间工程为例,运用可移动单侧支模体系解决了半封闭深基坑施工环境中地 下墙体的施工.实践表明,该体系不但切实可行,而且可以有效缩短施工工期,提高施工效率. [关键词]地下工程;深基坑;地下连续墙;单侧支模;行走轮 [中图分类号]TU755.2 [文献标识码]A [文章编号]1002-8498(2013)02-0058-04 Application of Movable Unilateral Formwork System in Semi-enclosed Construction Environment Zheng Yongchao Sun Ruiang The Third Construction Co.Ltd.of China Construction First Group Beijing 100161 China) Abstract:In order to ensure the stability of deep foundation excavations multiple inside supports are usually used with cover plate on top to provide enclosure protection.Due to the plex environment of construction sites and narrow operation fields most external walls of basement use unilateral formwork system.However the roof cover plate and the inside supports make it difficult to transport construction materials.It is therefore proposed to optimize the unilateral formwork system divide into units and use movable wheel at the bottom of the formwork to solve this problem.Taking the underground project of Tianjin Yujiapu Plot 03-21 as an example the movable unilateral formwork system was used for underground wall construction in the semi-enclosed deep foundation excavation.The practice shows that the movable unilateral formwork system is not on...
【关键词】高层建筑;型钢;堆载平台;吊运;施工技术 [中图分类号】TU472[文献标识码】A[文章编号】1002-8498(2015)05-0076-03 Research and Application of Construction Technology ofPortable SteelReinforcedHeapedLoadPlatform Zhang Ming,Li Penghui,Du Xiujia,Wang Haijun,Xiao Xiangwen (The FirstConstruetion Co.,Ld.ofChinaFourth Construction Bureau, Guangzhou,Guangdong 510656,China) Abstract:This paper introduces portable steelreinforced heaped load platform by analysisof traditional construetionmethod fbuilding structurewhose applicationacceleratesconstructionprogresssolvessome problems: construction materials can not be lifted due to not meeting the requirement of heaped load of concrete strength for new pouring concrete floor,floor slab cracks due to stacking materials with insuffcient strength of concrete floor.This paper introduces some research contents from different aspects, including design,manufacture,installation,lifting,demolition and so on; summarizes some construction problems,including early cracking of concreteoor,relatively slow construction progress. Key words;tall buildings;section steel;heaped load platform;lifting;construetion 0引言混凝土楼板开裂和工期长的难题。
[关键词】钢结构;桁架;钢梁;吊装;可拆卸式吊夹 [中图分类号】TU758.16[文献标识码】A[文章编号】1002-8498(2014)02-0051-03 Application and Study of the Removable Lifting FixtureforSteelStructures Zhou Tao,Zhu Haijun,Zhang Fei (China Construction Third Engineering Bureau Co.,Ltd.,Wuhan,Hubei 430074,China) Abstract;The removable lifting fixture for steel structures was researched,which was applied in Hubei New Library engineering successfully.This lifting fixture is suitable to H-shaped steel beam and trusses, especially to the large weight steel beam and trusses. Compared with the traditional welding lug lifting, the lifting fixture has the characteristics of easy fabrication,high turnover rate and versatility,moreover, energy-saving. Key words;steel structures; trusses; steel beam;hoists;removable lifting fixture 可拆卸式钢结构吊装夹具(以下简称吊夹),包10.9级M24×75 括吊夹板、连接板、高强螺栓、螺母、垫圈、卸扣。
每高强螺栓 个夹具包含2块吊夹板,每块吊夹板上设置1个卸000 扣孔、3个连接孔、1个U形凹槽。
连接板为两块, 每块连接板设置6个连接孔,如图1所示。
高强螺a吊夹板 b连接板 栓、螺母、垫圈用于连接板与吊夹板夹紧后紧固。
图1吊夹构造 卸扣用于连接钢丝绳及连接板。
该吊夹有效提高Fig.1 The structure of lifting fixture 了钢结构吊装效率,增强了构件吊装的安全性和准1工程概况 确性,缩短了钢结构吊装工期,减少了吊装过程中湖北省图书馆新馆建设工程总建筑面积 对塔式起重机的依赖性,具有制作简单、周转率高、100523m²,其中地上部分面积79699m²,地下部分 通用性强等特点。
[关键词】地下工程;软土;深基坑;支护;加劲桩;锚固件 [中图分类号]TU753[文献标识码]A[文章编号]1002-8498(2013)13-0018-06 The Design and Application of Anchoring Parts in Cement-soil ChurningPileforRecyclableSteelStrands Liu Quanlin (Shanghai Strong Foundation Engineering Co.,Ld.,Shanghai 200235, China) Abstract:Cement-soil churning pile can control the displacement of foundation excavation effectively, especially in silt soft soil. But once steel strands in it are barred underground, the strands bee obstacle and will make trouble for later construction of buildings nearby. Therefore the design of anchoring parts to recycle the barred steel strands is necessary. Compared with the different forms of anchoring parts, U-shaped columnar ones are better. They have a larger size to release the acting force caused by steel strands, minimize the damage for both anchoring part and cement-soil material. Though the stee strands can be removed, the anchoring path is unrecyclable. This paper finally presented a theoretical method to pute cement-soil churning pile with U-shaped columnar anchoring parts and the experimental results are also listed for parison. According to the results from experiment and theoretical method, they fit well and have proved that the design of U-shape columnar anchoring parts is a break though on recyclable anchoring technology in soft soil. Key words: underground; soft soil; deep foundation excavation; supports; reinforced piles; anchoring parts 我国经济发达地区大多地处软土地区,黏土、(索)技术规程》CECS22:2005中规定普通锚杆不适 淤泥质黏土能提供给桩基或者锚杆的侧摩阻力仅用于软土基坑支护。
[关键词]可再生资源;垃圾焚烧灰;应用机理;固化稳定;催化作用;辅助胶凝 [中图分类号]TU502[文献标识码]A[文章编号]1002-8498(2017)06-0086-03 TheResearchonApplicationMechanismofRenewable Resources City Garbage IncinerationAsh Xu Weixing',Cheng Yan²,Gao Luheng' (1.JianguEngineringProfessonalTechlogyInstiue,aong,Jiangsu2007,Ch; 2.BCEG International Co.,Ltd.,Bejing 100055,China) Abstract:This paper studied application constitutive mechanism of renewable resources city garbage incineration ash engineering. Through the new methods such as urban refuse incineration ash main position and chemical properties,waste incineration ash auxiliary gelation was further studied, various kinds of factors affecting gelling property of waste incineration ash in engineering application were introduced. Key words:renewable resources;garbage incineration ash;application mechanism; stable curing; catalysis;auxiliary gelation 0引言当前,焚烧处理是有效解决城市垃圾最有效的 近年来,随着城市化进程越来越快,城市垃圾办法。
2010年9月 施工技术 第39卷第9期 CONSTRUCTION TECHNOLOGY 89 厦门西站站房工程贝雷架模板支撑体系设计及应用 李小荣 (中铁建设集团有限公司,北京100040) [摇]厦门否站站房工程8.95标高板为超天跨度预应力混凝土井字梁楼善,结构施工考患新建铁路福愿线工 程列通行需要,将贝架运用到梁板棋板支撑体系中,与如式脚手联含使用,形成贝雷架横板撑体系作为 工程列穿行通送.结合豆程实际,介了贝雷架模板支撑体翠设计、计算及施构造施,明确了施互花流 程,指出测量定位、贝雷架基础施工、立安装、承重梁及贝雷容装等操作要点,保证了工程顺利实施. [关键词]屋门西站:贝雷架:支撑体系:设计计算:构措施 [中分类导]TU731.2 [文献标识梯]A[章编号]1002-8498(2010)09-0089-03 Design and Application of Bailey Trestle Formwork Support System in Xiamen West Railway Station Li Xiaorong China Railway Construction Group Co.Lid.Beijing 100040 China) Abstract:In the Xiamen West Railway Station of Xiamen-Fuzhou railway the station house floor at 8.95m elevation is designed as superHarge span prestressed concrete grillage floor.Considering the requirements of train passage the Bailey trestle is used as train passage bining with bowl-scaffold to form the Bailey trestle formwork support system.Based on project eonditions design calculation and structural measures of the support system are introduced.Furthermore the construetion process are put forward as well as operation points such as measurement and location construction of Bailey trestle foundation installation of vertical columns bearing beams and Bailey trestle.Thus the train passage is successfully pleted. Key words:Xiamen West Railway Station:Bailey trestle:support system:design and calculation: structural measure 1工程概况 穿行通道留设等条件的限利,给梁板模板支撑体系的 厦门西位于厦门市集美区后溪镇,是国家铁路设计带来团难,如何选择容全、经合理的梁板模板直 网规划中沿海大通道的重要客运站,也是福建第2个撑体系,是施工的难点.将制式器材贝雷片运用到梁 重要客运...