施工技术 2010年3月 52 CONSTRUCTION TECHNOLOGY 第39卷第3期 大跨度上行式移动模架高空拼装技术研究 程晔,周翠英,杨凌2 (1.中山大学工学院,广东广州510275;2.中铁大桥局集团有限公司,湖北武汉430050) [摘要]深入研究MS62.5m大跨度上行式移动模架安装技术,根据工程现场实际条件,详细比较了高空拼装方案 与整体提升方案优劣,最终选择了高空拼装方案并制定了详细的实施方案.该方案在珠江黄埔大桥北引桥 MSS62.5m大跨度移动模架安装工程顺利实施.实践表明在特定的条件下,高空拼装方案在大跨度移动模架拼装 施工具有自身特点和优势. [关键词]移动模架;高空拼装;整体提升;临时墩 [中图分类号]TU731.2;U445[文献标识码]A[文章编号]1002-8498(2010)03-0052-04 High-altitude Assembling Technique for Large-span Movable Scaffolding System Using Upper Slide Shuttering Formwork Cheng Ye' Zhou Cuiying' Yang Ling2 (1.School of Engineering Sun Yat-sen Unicersity Guangzhou Guangdong 510275 China; 2.China Zhongtie Major Bridge Engineering Group Co.Lud.Wuhan Hubei 430050 China) Abstract:The high-altitude assembling technique for large-span Movable Scaffolding System (MSS62.5m)using upper slide shuttering formwork is researched thoroughly.Based on the practice engineering the merits and demerits of two programs are pared with each other and the high-altitude assembling scheme is chosen at last.The detailed high-altitude assembling scheme is made and put into action in the northerm approach of Zhujiang Huangpu Bridge.It is proved by the practical engineering that the high-altitude assembling scheme has own advantages. Key words:movable scaffolding system;high-altitude assembling:integral lifting;temporary pier 移动模架系统(movable scaffolding system简称系统(立柱、支承机构及台车)、主梁系统(主梁和导 MSS)是一种自带模板,可在桥位间自行移位,逐孔完梁、吊架及挑梁)、辅助系统(15t起吊装置、前支腿)、 成箱梁现浇施工的大型制梁设备,其相当于提供了1模板系统(底模板、侧模板、吊杆)等部分,整机钢结构 个移动...
[关键调]核电站:螺栓:安装:调校:施工技术 [中图分类号]TU758[文献标识码]A[文章编号】1002-8498(2012)20-0096-03 Installation and Adjustment ControlTechnology ofLargeDiameterEmbedded Bolts Yang Huajun,Xia Hongzhi (Chins Consratin Eletric Powr Contrctis Co. , Lad. , Shnzhen, Gngdong 518034, Chin) Abstract The main workshop of Guangdong Taishan Nuclear Power Plant used groups of large-diameter bolts pre-embedded in the mass concrete of raft foundations. Taking one bolt group as an example, the technique of bolts installation processing, selection of measurement instrument, locating of steel pedestal , manufacturing and installation of locating plate , steel supports and steel base, adjustment control of bolts are introduced in detail. The key operation points of...
2011年10月下 施工技术 第40卷第351期 CONSTRUCTION TECHNOLOGY 37 大梁山隧道进口破碎围岩段开挖施工技术 赵慧君,陈阳 (中交一公局第三工程有限公司,北京101102) [摘要]大梁山特长隧道进口段地形、地质条件复杂,施工困难.通过工程分析和方案设计,破碎围岩段隧道进口 施工时,预留核心土对在开挖过程中隧道的围岩变形和支护受力有很大影响,对隧道围岩的稳定性起着至关重要 的作用,故采用环形开挖预留核心土法施工.通过小导管注浆超前支护,加强施工质量控制及监测,确保了工程质 量和安全. [关键词]隧道工程;开挖;注浆;支护;施工技术 [中图分类号]U455.4 【文献标识码]A [文章编号]1002-8498(2011)20-0037-03 Construction of Inlet Portal Segments with Fractured Surrounding Rock in Daliangshan Tunnel Zhao Huijun Chen Yang The Third Engineering Co. Lad.of the First Highseay Engineering Bureau of CCCC Beijing 101102 China) Abstract:The construction of Daliangshan tunnel is difficult because of its plicated geological conditions at the inlet portal and fractured surrounding rock.The core rock is a quite important factor to the displacement the internal force and the stability of the surrounding rock so the ring cutting with core rock support method is adopted by analysis and construction design.Construction quality and safety is ensured by small pipe grouting in advance quality control and monitoring. Key words:tunnels;excavation;grouting;support;construction 1工程概况 相同,二者组合关系对于洞口边坡稳定性不利,同时 大梁山隧道是山西省天镇一大同高速公路的一 坡体上残坡积物较为发育,自然条件下,洞口所在的 条特长隧道,设计为双向四车道,左线长6015m 右 黄土覆盖基岩中陡坡稳定性较差;工程条件下,洞口 线长6058m.行车道宽度2×3.75m 单洞限宽 开挖可能使坡体稳定条件进一步恶化,对坡体稳定 10.25m 限高5m;设计行车速度80km/h;汽车荷载 性影响严重.经踏勘及分析设计图纸,此不良地质 等级为公路I级. 地段长约35m 位于坡积裙上,土石混杂,岩体破碎, 隧址区位于山西省北部阴山山脉大梁山基岩山 加大了隧道进洞及掘进难度.在如此破碎的围岩中 区内,地貌单元为构造剥蚀基岩中山区,进口段洞口 进行隧道施工存在如下难题. 所处微地貌单元为黄土覆盖的基岩小山脊,洞口位 1)掌子面围岩成型困难由于该段位于坡积 于该小型山脊北坡之...
施工技术 2013年9月上 38 CONSTRUCTION TECHNOLOGY 第42卷第17期 D0I:10.7672/8gjs2013170038 大断面隧道支撑拆除与二衬施工影响分析 李凌宜 (北京市公路桥梁建设集团有限公司,北京100068) [摘要]在隧道二衬施工时,常规做法均为拆除1段临时支撑,施工1段二衬,此做法安全性较高,但施工场地有 限,影响施工进度.采用专业有限元软件MIDAS/GTS和现场监测,对长沙地铁某区间大断面暗挖隧道的临时支撑 拆除与二衬施工时机相互间的影响进行了分析及现场实施,得出可以采取先行拆除2个施工段的临时支撑, 然后再隔段随拆撑随二衬施工,既可以节省施工时间,也可以保证施工安全. [关键词]隧道工程;大断面隧道;支撑;衬砌;拱顶沉降;施工技术 [中图分类号]U455.91 [文献标识码]A[文章编号]1002-8498(2013)17-0038-03 Influence Analysis of Support Demolition and Secondary Lining Construction for Large Cross-section Tunnel Li Lingyi Beijing Roads Bridges Construction Group Co.Ltd. Beijing 100068 China) Abstract:The regular method of secondary lining is secondary lining construction after temporary supports demolition of one construction section which can ensure safety but effect construction progress.Using finite element software MIDAS/GTS and field monitoring the author analyzes influence of temporary supports demolition and secondary lining construction in large cross-section metro tunnel in Changsha to obtain the method of firstly secondary lining construction after all temporary supports demolition of two construction section and secondary lining construction at the first section and temporary supports demolition at the three section which can save time and ensure construction safety. Key words:tunnels;large cross-section tunnels;supports;linings;crown settlement;construction 1工程概况 为研究对象,对大断面隧道拆除临时支撑及二衬施 长沙市轨道交通2号线湾镇站站前停车线区 工的最合理时机进行研究. 间位于枫林一路与湾路交叉口,设计共4种断面, 表1C型隧道结构形式 最大断面为双线C型断面.与C型隧道相邻为...
[关键词】隧道工程;软岩;支护;三台阶开挖;变形;施工技术 [中图分类号]U459.2【文献标识码]A[文章编号]1002-8498(2016)01-0092-03
of LargeSectionSoftRockTunnel Zhong Qi,WangXiaolong,HeJinbao (No.1Engineering Co.,Ltd.ofFHEC ofCCCC,Bejing102205,China) Abstract:According to the research on the various diseases during the construction, this paper put construction.This technology can ensure the safety and quality,and also significantly speed up the construction progress, effectively reduce the construction cost,control subsidence and convergence deformation, and achieved good economic and social benefits. Key words:tunnels; soft rock;supports; three step excavation; deformation;construction
1工程概况成初期支护侵限,导致侵限段落必须采取换拱处 由中交第一公路工程局有限公司承建的G7高理,其施工安全风险大,并且增大了施工成本。
施工技术 2017年6月上 94 CONSTRUCTION TECHNOLOGY 第46卷第11期 D0I:10.7672/5j52017110094 大断面矩形顶管人工-自动结合注浆减摩效果分析* 潘尚昆,刘勇1,徐连刚2 (1.南京市市政工程质量安全监督站,江苏南京210036:2.上海隧道工程股份有限公司,上海200090) [摘要]结合南京市某地下过街通道工程矩形顶管施工的实际,对顶管施工过程中的注浆工艺和注浆系统进行创 新—一人工注浆与自动注浆相结合.通过对比两种注浆工艺的压浆压力曲线、摩阻效果评价等工作,验证了人工- 自动结合注浆的优良效果,并对系统下一步改进提出了建议,旨在促进大断面矩形顶管注浆施工工艺向精细化、自 动化方向发展,提高矩形顶管施工过程中的注浆效果,减少地下顶管施工对周边环境的影响. [关键词]地下通道;矩形顶管;人工自动结合注浆;地面沉降;自动注浆系统;施工技术 [中图分类号]U455[文献标识码]A [文章编号]1002-8498(2017)11-0094-04 A Case Analysis of Artificial Automatic Slurry Injection to Reduce Friction During Large-section Pipe-jacking Operation PAN Shangkun' LIU Yong' XU Lian'gang (1.Nanjing Municipal Engineering Quality and Safety Superrision Station Nanjing Jiangsu 210036 China; 2.Shanghai Tunnel Engineering Co.Ld.Shanghai 200090 China) Abstract:In this paper the authors develop an new grouting technology namely automatic slurry injection bined with manual grouting based on an underground pipe jacking engineering in Nanjing. By parison of the two curves grouting pressure and the friction effect evaluation work the authors verify the manual-automatic binding effect and make remendations for grouting system.The work aims at promoting large section rectangular pipe-jacking makes it slurry to the fine and automation raising the effect of rectangular pipe-jacking process grouting and reducing the impact of underground pipe jacking on the surrounding environment. Key words:underground passage;rectangular pipe jacking;artificial automatic slurry in...
施工技术 2013年4月下 54 CONSTRUCTION TECHNOLOGY 第42卷第8期 D0I:10.7672/sgjs2013080054 大截面风管超长拼装整体高空吊装技术 李小东,左中杰2,李江华,张华栋2,翟传明2 (1.中建三局第二建设股份有限公司,湖北武汉430074; 2.中电投工程研究检测评定中心,北京100840) [摘要]在电子工业厂房、航天工业厂房、制药厂房等需要有大量空气交换的高大空间洁净场所,大截面风管的应 用越来越多,但相应的施工技术还在不断地提高与改进.笔者根据某航天工业厂房大截面风管的成功施工经验, 介绍一种大截面风管超长拼装整体高空吊装的方法.根据其组合化施工、质量可靠、施工安全等特点,重点介绍了 风管超长拼装、吊点负荷计算、高空分段吊装、高空对接、检测与检验等技术措施. [关键词]厂房;风管;拼装;吊装;检测 [中图分类号]TU758 [文献标识码]A [文章编号]1002-8498(2013)08-0054-03 Assembly of Large Cross-section Super-long Air Ducts and Integral Hoisting at High Altitude Li Xiaodong' Zuo Zhongjie2 Li Jianghua' Zhang Huadong2 Zhai Chuanming2 (1.The Second Construction Co.Lid.of China Construction Third Engineering Bureau Wuhan Hubei 430074 China; 2.CE Center for Engineering Research Test and Appraisal Beijing 100840 China) Abstract:In clean large space areas that require large amount of air exchange such as the factories of electronics industry aerospace industry and the pharmaceutical workshop large section air ducts are being more widely applied.However the corresponding construction technologies for the air ducts are still being improved.According to the successful experience of installing large section air ducts for an aerospace industrial plant this paper introduces an integral hoisting method for super-long large section air ducts.Based on the characteristics of posite construction reliable quality and safe construction the technical procedures of super-long assembly of the air ducts loading calculation of the hoi...
2011年5月上 施工技术 第40卷第340期 CONSTRUCTION TECHNOLOGY 71 大型钢骨架埋件施工技术 黄晓霞,张乃华,陈敏 (南通新华建就集团有限公司,江苏通州226300) [要]某工程设计吾求主体构施工时,框架柱一肢内预理型钢骨架懂件,型钢骨架懂件处在层框结构 中部,形成邮的型铜混凝士结构,以此增强整个框架体系刚度,夹展铜梁与型铜骨件为刚性接.重点介 了型钢骨架埋件就,框博柱的纵向铜筋、温筋容装,棋板施工,混凝土的堂等喜个施工环节的施工方法. [关键词]型铜香架:埋件:刚性连 [中密分类号]TU758.16 [立战标积弱]A [交章编号]1002-8498(2011)09-0071-02 Construction Technology of Large Profiled-steel Embedded Parts Huang Xiaoxia Zhang Naihua Chen Min Xinhua Construction Group Co.Ltd.Tongzhou Jiangsu 226300 China) Abstract:The design of some building engineering requires that when the profiled-steel embedded parts need to be embedded in the frame column-short-eg shear wall during the main body construction the profiled-steel embedded parts should locate in the middle frame structure of each floor to form the local profiled-steel concrete structure.The design method makes the steel beam and the embedded parts as rigid connection so the rigid of the integrate frame system is strengthened.The authors mainly show the construction methods of the location of profiled-steel embedded parts installation of the steel bar formwork construction and concrete pouring. Key words:profiled-steel skeleton:embedded part:rigid connection 1工程概况 8X200=1600 I300×300×10×15 1-14 某工程总建就面积约16.2万m2.其中A座为 框架-剪力墙结构,约3.6万m2 共18层,设计为 -200X25 Lft户型,夹层楼板为钢梁一混避土含楼面,层高 AM19X90栓焊钉 400400 埋件平面 5.5m 框架柱截面尺寸800mmx800mm 短肢楼截 b1-1 800 1600 面尺寸为400mm×1600mm 型钢埋件外形尺寸:横 H300×300×10×15 -20025 向为200mm×400mm×2000mm 纵向300mm× =14 300mm×1400mm 埋件单体质量约为975kg 埋件 -20025 1...
2017年9月下 施工技术 第46卷第18期 CONSTRUCTION TECHNOLOGY 35 D0I:10.7672/5j52017180035 大型钢结构球形支座力学性能试验研究 娄峰12,潘文智1,石开荣1,吕俊锋 (1.华南理工大学土木与交通学院,广东广州510641; 2.浙江精工钢结构集团有限公司,浙江绍兴312030) [摘要]广州报业文化中心连廊为钢桁架结构,采用大吨位球形支座,包括固定铰支座和单向滑动支座.在不同荷 载组合作用下,支座处于压转、压剪及轴压等复杂受力状态,需对支座在各种受力状态下的变形及转动力矩等进行 检验,以评定其受力性能是否满足要求.以较高承载力的固定铰支座为例,进行力学性能试验研究,包括:受压状 态下的支座转动性能试验(压转)、水平承载力试验(压剪)和竖向承载力试验(轴压)等.试验结果表明:支座实测 转动力矩小于规范规定的转动力矩,支座水平位移与水平荷载、竖向压缩变形与竖向荷载、盆环径向变形与竖向荷 载之间基本呈线性关系,转动性能、水平承载力、竖向承载力均满足规范和设计要求,且试验完成后支座变形能基 本恢复. [关键词]钢结构;桁架;球形支座;力学性能;试验 [中图分类号]TU317 [文献标识码]A [文章编号]1002-8498(2017)18-0035-04 Experimental Study on Mechanical Properties of Spherical Bearings for Large Steel Structure LOU PAN Wenzhi' SHI Kairong' LU Junfeng' (1.School of Civil Engineering and Transportation South China University of Technology Guangzhou Guangdong 510641 China;2.Zhejiang Jinggong Steel Building Group Co.Ltd.Shaoxing Zhejiang 312030 China) Abstract:The joint gallery of Guangzhou Daily Group Culture Center which is posed of steel truss structure is supported by super spherical bearings including fixed and uniaxial sliding bearings.Since the bearings are in plex forced states under various load bination it is necessary to test the deformation and rotational moment of the bearings under different conditions and evaluate whether the mechanical properties are satisfactory.Taking the fixed bearing with higher capacity for example experimental study on mechanical properties are carried on in the aspects of rotation capacity test ...
施工技术 2016年12月上 92 CONSTRUCTION TECHNOLOGY 第45卷第23期 D0I:10.7672/sjs2016230092 大型室内游乐场超高超厚结构板支撑体系设计与施工 邢振华,刘帮贺,孟成功,崔正立,刘旭升 (中建三局集团有限公司东北分公司,辽宁沈阳110179) [摘要]近年来,随着我国经济的快速发展,结构形式复杂、建筑功能多样、社会影响深远的建筑物时常出现在我们 的视野中.某特大型综合体项目室内游乐场超高超厚结构板施工中,创新地采用贝雷架扣件式钢管脚手架施工 方法,并经过建模、计算、受力分析,代替传统的超高支模施工方法.通过贝雷架脚手架施工方式,缩短施工工 期、降低项目成本、提高安全性能. [关键词]支撑体系;贝雷架;超高超厚结构板;设计;施工技术 [中图分类号]TU731.2 [文献标识码]A [文章编号]1002-8498(2016)23-0092-02 Design and Construction Technology of Supporting System for Ultra-high and Super-thick Floor Slab of Large Indoor Amusement Park Xing Zhenhua Liu Banghe Meng Chenggong Cui Zhengli Liu Xusheng Northeast Branch of China Construction Third Engineering Group Co.Lad. Shenyang Liaoning 110179 China) Abstract:In recent years with the rapid acceleration of China's economic development the buildings which are plicated in structure positive in architeetural function and profound in social influence often appear in our vision.Combined with the ultrahigh and super-thick floor slabs construction experience of an indoor amusement park in construction of a large scale plex project the authors innovatively adopt the construction method bined with bailey bracket and buckled type steel pipe scaffold to replace the conventional high-formwork supports after modeling calculation and force analysis. The adoption of the construction method bined with bailey bracket and buckled type steel pipe scaffold can shorten construction period decrease construction cost and improve construction ...
[关键词】施工力学;施工控制;一体化协同时变系统;大型复杂钢结构 [中图分类号]TU391;TU74 【文献标识码]A [文章编号]1002-8498(2011)01-0047-09 Application andResearchof ConstructionMechanics andNewControl TechnologyinLarge and ComplexSteelStructures Construction Guo Yanlin',Tian Guangyu',Zhou Xuhong²,Chen Guodong” (1. School of Civil Engineering, Tsinghua Unisersity,Bejing 100084,China; 2. School of Civil Engineering and Mechanics, Lanzhou Universty, Lanzhou,Gansu 730000, China; 3.Zhejang Jinggong Steel Building Co.,Lad.,Shanghai200233,China) Abstract:With the capacity of steel production in China continuing to be the top of the world, steel structures are used more and more widely in buildings. Especially in large public buildings, lots of plex steel structures e forth. They challenge construction mechanics and control technologies in informational aplication of integrated lifing,dismantling,pulling,slipping,tension technique, realization of fullife-oriented structural design, control criteria of construction deviation, influence of construction environment temperature,welding deformation and concrete's shrinkage-creep and so on.These problems have to be solved by integrated cooperative time-variation analysis system involved in space domain. Taking typical large plex stel structures home and abroad as examples, the authors point out theories and methods of integrated cooperative time-variation analysis system to solve problems above and introduces the new algorithm and FE element, which can provide reference for further ...
施工技术 2014年8月上 116 CONSTRUCTION TECHNOLOGY 第43卷第15期 D0I:10.7672/5j52014150116 大型古建筑维护中残缺区域视觉施工测量优化* 张立昆,李晓燕2,张晓明1 (1.河北建筑工程学院建筑与艺术学院,河北张家口075000; 2.河北建筑工程学院电气工程学院,河北张家口075000) [摘要]在大型古建筑物测量的过程中,由于残缺区域边界纹理特征分布极为复杂,造成残缺区域特征在图像重构 的过程精确度降低,导致难以进行准确测量.提出一种基于边界特征自动提取算法的大型古建筑残缺区域施工测 量方法.根据残缺区域边界的曲率计算结果,结合种子格栅选取和自动区域生长等方法将大型古建筑残缺区域的 关键数据点从背景中进行有效分离,根据多边形细分和离散光顺相关原理对大型古建筑残缺区域的边界进行重 构,提高了大型古建筑测量的准确度.试验结果表明,利用边界特征自动提取算法能够有效将大型古建筑残缺区 域进行重构,极大地提高了大型古建筑测量的准确度. [关键词]大型古建筑;残缺区域:图像重构;测量;施工 [中图分类号]TU198 [文献标识码]A [文章编号]1002-8498(2014)15-0116-04 Visual Construction Measurement Optimization of Damaged Area in the Large Ancient Buildings Maintenance Zhang Likun' Li Xiaoyan2 Zhang Xiaoming' (1.Department of Architectural and Art Hebei University of Architecture Zhangjiakou Hebei 075000 China; 2.Department of Electrical Engineering Hebei University of Architecture Zhangjiakou Hebei 075000 China) Abstract:In the process of measuring large ancient buildings the damaged area boundary texture feature distribution is very plex and it leads to reducing of image reconstruction accuracy for the imperfect regional characteristics making it difficult to accurately measure.For this reasons this paper puts forward a kind of measurement method of large buildings damaged area based on boundary features automatic extraction algorithm.According to the curvature of the damaged area boundary estimation results the key data points are effectively separated from the background bined with seed grating selection and...
【关键词】防水工程;屋面;漏水;分析;治理 [中图分类号】TU761.11[文献标识码】A[文章编号】1002-8498(2014)10-0115-03
Li Yonghui,Zhang Shuyan,Tang Wei,Wang Bo,Xing Yuhang (China Jingye Engineering Co.,Lad.,Beijing 100088,China) Abstract;Combined with the Universal Studio project at Sentosa in Singapore, authors summarize the specific steps and methods to resolve leakage and illuminate 4 types of classic leakage being met in maintenance period. Base on the analysis of causes in design and construction which lead to leakage, authors also propose relevant advices in design and specific solutions which have been proved to be effective by practice in later. The treatments and suggestions mentioned in the paper will be useful for design, construction and maintenance in similar projects. Key words:waterproofing; roofs; leakage; analysis; treatment 新加坡地处热带气候区,年降雨量达2345mm,坞、奥兰多和日本大阪3个环球影城的精华,园区内 这样的气候条件给当地建筑结构的防水工程及后包括好莱坞、纽约街、遥远王国、马达加斯加之旅、 期的漏水治理提出了严峻考验。
2016年8月下 施工技术 第45卷第16期 CONSTRUCTION TECHNOLOGY 105 D0I:10.7672/8js2016160105 大坡度钢网架结构旋转顶升安装技术 庄利军 (山西国建集团有限公司铜结构分公司,山西太原030006) [摘委]采用项升法安装钢网架施工过程中,相邻顶升支撑结构高差超限会导致液压系统破坏、支撑体系失稳等施 工安全向题.针时进一视宾,结含某大度网架屋面安装工程作为实例,分析了顶升容装过程中所采用的固定 轴旋转找坡-项升端加设滑槽的施工方法,同时在安装过程中采用MT软件对网架的杆件承载力、整体穆定性等进 行横拟分析. [关键词]钢结构;钢网架;安梨;项升法;滑槽;模拟分析 [中图分类号]TU758.1[交献标识码]A[文章编号]1002-8498(2016)16-0105-03 Big Top Grade Steel Grid Structure Rotation Installation Method Zhuang Lijun China Shanxi Sijian Group Co.Ltd.Steel Structure Branch Taiyuan Shanxi 030006 China) Abstract:During installation of the steel space truss by jack-up method adjacent jack-up support structure difference transfinite can lead to hydraulic system damage and supporting system construction safety problems such as instability.In reaction to the phenomenon bined with a large slope steel space truss roof installation project as example the author analyzes the installation process by using the fixed axis rotation for slope and jack-up end adding chute construction method.Meanwhile in the process of installing the MST software is used to simulating bar bearing capacity and the overall stability ete. Key words:steel structures;steel space truss;installation;jack-up method;chute;simulation 1工程概况 爆支架、置后的组令支架及盟后防妈榻支架 某文体中心钢结构网架屋顶,网架为焊接球正位置如图1所示. 旋四角雅平板网架结构,周边柱点支撑.短向跨度 为54m 长向跨度为60.9m 投影面积约为 3288.6m2.屋面为单向排水,其网架支座底标高最 低点.12.874m 最高点17.869m 沿长度方向形成高 差约5m的坡屋面.该网架施工空闸受到周边混凝 土构件的影响,网架拼装空获小,无法找到统一 870 6 标高平面进行拼装.同时网架自身坡度较大,网架 4 整体的安装就位成为该网架施工的难点. A A 2施工方亲及...
[关键词]加固;顶升;托换;纠倾 [中图分类号]TU746.4 [文献标识码]A [文章编号]1002-8498(2013)16-0050-04 Application ofLarge-displacementIntegralLifting TechnologyinLarge-scaleBuilding Li Guoxiong (Guangzhou Luban Construction Group,Guangzhou,Guangdong 501665,China) Abstract;Combined with engineering practice of the integral lifting project of Ji'ning Guihe Shopping Center and the lifting andrectification ofa tallbuilding,the underpinning structure,lifting equipments, Combined with engineering practice of anintegral lifing project in Shenzhen,foundation reinforcement, design and construction methods,and construction experience were introduced in the lifting project with big volume, the corresponding measures and attention points are provided. Key words:strengthening;lifting;underpinning;rectification 顶升技术在建筑物及构筑物整体移位工程中1.2工程特点 得到广泛应用,如建筑物整体平移工程中平移换向 本工程需要顶升的位移为1.8m,如此大位移顶 倾斜后的纠倾顶升,桥梁安装时箱形梁的顶升,桥 对顶升稳定性和准确性要求较高,施工过程中保证 梁坡度改变时的顶升等。
[关键词】绿色建筑:自然通风系统;天然能源;碳排放;设计 [中图分类号]TU201.6[文献标识码]A[文章编号]1002-8498(2012)03-0012-03 NaturalVentilationSystemDesignofSomeMansioninJapan YangXiwei,Hasegawa lwao (NIKKEN SEKKEI,Tokyo,Japan 102-8117) Abstract:Some mansion in Japan takes a series of technique measures in the early design to reduce carbon emission, including giving natural ventilation scheme of city-type rented mansion with over 5 times per hour ventilation,taking suitable carbon emission reduction method for middle scale building in city center,and the maximum using natural energy source. The paper introduces in detail natural ventilation system and its equipment. Key words:green buildings;natural ventilation system;natural energy source;carbon emission;design 1工程概况Hulic公司在日本的房地产行业内率先提出项 大传马大厦建在东京都日本桥附近的城市中目内大厦的二氧化碳总排放量力求在2020年 心密集区域,是Hulic公司的新建租赁大厦。
建筑比1990年减少25%的目标。
日建设计为实现该目 面积为7332m²/层,地上10层,地下1层。
其建筑标,采取相应措施提高项目内租赁大厦的环境性 效果如图1所示。
能,并把该大厦定位为日建开发中的“先进环保型”
中等规模租赁大厦的标兵项目。
为使其环境功能
提出市中心中等规模办公大厦环保基本原型方案 自然通风方案①城市型租赁大厦等规模建筑相匹配②采用与市中心中③促进租赁大厦充分利用天然能源的 的减排方案方案 不 通过采用减排技术,实现二氧化碳减排40%的目标 个个个 将本设计手法运用于其他租赁大厦从而实现向环保型办公大厦的转型
新建改装新购改蕾 个个个 图1大传马大厦城市中心办公大厦向环保建筑的转型 Fig.1 Some mansion in Japan
Hulic公司提出“二氧化碳减排25%”的目标 [收稿日期]2011-12-10图2环保基本方案 [作者筒介]杨熹微,株式会社日建设计设计部门设计部主任,东京Fig.2The basic scheme for 都千代田区饭田桥2-18-3102-8117,电话:81-80-6907-8399,E-mail: yang. xiwei@ nikken. co. jp environmental protection
万方数据
2012 No.358杨熹微等:大传马大厦的自然通风系统设计13 领先于房地产行业,在设计初始期,日建设计与业水平雨篷 主制定了“CASBEE达到S等级,CO减排达到 40%”的较高目标,并通过以下先进措施解决。
[关键词】隧道工程;沉降;非线性;神经网络;预测 [中图分类号]U456.3[文献标识码】A[文章编号]1002-8498(2013)23-0085-03
Settlement Measurement of City Tunnel Wang Ronglin',Wang Bing² (1.Jiangxi Radio & TV Univesity,Nanchang,Jiangxi 330046,China; 2.Shichang Construction Group Co.,Ltd.,Nanchang,Jiangxi 330046,China) Abstract;Inorder toimprove prediction accuracy of the surface settement for city tunnel the authors put forward a kind of gray space model, which can optimize traditional prediction method of surface settlement.Firstly,the method is to build the model by random process of surface settlement of rock and soil mass,the neural network has nonlinear data approximation ability in surface settlement prediction by building the nonlinear mapping relationship between surface settlement and random variables. The test shows that binationmodel improves prediction accuracy of surface setlement for city tunnel. Key words:tunnels;settlement;nonlinear;neural network;prediction 在城市建设过程中,经常会进行隧道施工,由特殊表示一般,从而导致研究成果难以推广应用。
施工技术 2017年6月上 86 CONSTRUCTION TECHNOLOGY 第46卷第11期 D01:10.7672/gjs2017110086 城市复杂环境超大直径钢顶管施工技术 李洪运 (上海市政工程设计研究总院(集团)有限公司,上海200092) [摘要]项目采用国内最大直径D4200的钢顶管施工,目前国内应用较少,缺乏比较成熟的施工经验,尤其在城市 复杂区域,施工工况复杂,通过严格的施工工艺策划,并大胆采用新工艺技术,制订完善合理的施工技术方案并采 取必要的保障措施,确保了钢顶管工艺的顺利顶进. [关键词]钢顶管;泥水平衡顶管机;复杂环境;施工技术 [中图分类号]TU745.3 [文献标识码]A [文章编号]1002-8498(2017)11-0086-04 Construction Technology of Large Diameter Steel Pipe Jacking in City at the Complex Environment LI Hongyun (Shanghai Municipal Engineering Design Institute(Group)Co.Lid.Shanghai 200092 China) Abstract:It's the maximum diameter DN4200)steel pipe jacking currently in China the application is less in domestic at present and for lacking mature experience the construction condition is also very plex especially in urban with plex environment.By using strict plan new technology perfect scheme and necessary measures the steel pipe jacking construction is pleted successfully. Key words:steel pipe jacking;slurry pipe jacking machine;plex environment;construction 1工程概况 DN450 DN450 随着现代化城市的快速发展,城市建设用地日 趋紧张,越来越多的市政基础配套设施转入地下空 间开发建设,国家部委也接连发文,部署推进城市 地下空间与地下综合管廊建设工作,鉴于此,深基 61000 坑、大直径地下暗挖等施工技术的推广应用是工程 实施成功的关键所在. 本工程虹桥商务核心区(二期)区域供能管沟 水管 项目,属商务核心区新能源系统的重要配套设施, 高温热水管(回) 高温热水管 采用DN4200钢顶管施工工艺,下穿商务区各商业 图1管沟断面 地块、市政设施,内敷能源冷热水管网(见图1).为 Fig.1 Pipe trench section 商务区各地块、设施集中提供能源系统.本文以商 务区南片区S03~S04顶管区间为例,介绍大直径钢 南虹港桥基础为600PHC管桩,桩长50.0m 顶管在城市复杂环境下实施时的关键施工技术. 桥台共36根,桥墩共60根,顶管边距最近桩基 顶管区间由S04工作井向S03井负坡4.5%o顶 仅1.9m. 进,始发段覆土11.23m 接收端覆土11.9m 下穿申 南虹港河宽55.4m 铺砌...
[关键词】地下工程;深基坑;支护;锚索;双排桩;施工技术 [中图分类号】TU753[文献标识码]A[文章编号】1002-8498(2014)01-0073-05 TheResearch and Application of theUltra-deepFoundation Excavation SupportsTechnologyUnderComplexConditionsinCity Zheng Yungang, Wang Zizhong,Yang Shixiang,Wang Xiaoshu (Yunnan Construction Foundation Engineering Co.,Lad.,Kunming,Yunnan 650041,China) Abstract:A deep foundation excavation project in Kunming is a typical urban ultra-deep foundation excavation, its environment is plex and the construction area is narrow. According to the engineering characteristics,some techniques are adopted such as double-rowpiles andposite support technology with pile-anchor and soil nail.The authors expound design of pile-anchor supports structure and discuss mechanism of double-row piles and posite support technology. Based on monitoring data,authors analyze application effect of the supports method. Key words: underground; deep foundation cxcavation; supports; anchor cables; double-row piles; construction 在城市的深基坑工程普遍具有开挖深度大,施南巷。