【关键词］地下工程；地铁车站；深基坑；圆砾地层；强降水 [中图分类号]TU753.66【文献标识码］A[文章编号］1002-8498（2012）16-0107-05 Research on Strong Dewatering Technology for Deep Foundation Excavation in Kunming Round Gravel Stratum Jiang Jincheng (Shanghai Tunnel Engineering Co., Ltd.,Shanghai 200082, China)
Abstract: During the construction of the Beichen station of Kunming subway, phase 1 project, the horizontal sealing of the bottom of the foundation in the south area was optimized considering site conditions and with the result from dewatering tests. A bination of sealing wall and strong dewatering was finally adopted. This paper described the test and the decision-making in the selection of the final schemc. Thc condition of the project was monitored for a period of time. The result shows that the dewatering measures meet the standard requirement. This dewatering process is proved efficient and time saving in project such as Kunming subway station. Key words: underground; subway stations; deep foundation excavation; round gravel stratum; strong dewatering technology
1工程概况更新世冲洪积层（Q：+)3大类。
施工技术 2015年7月下 54 CONSTRUCTION TECHNOLOGY 第44卷第14期 D0I:10.7672/8js2015140054 昆明南站站房钢柱转换节点加工关键技术 潘俊，吴德胜，沈晓飞 (浙江东南网架股份有限公司，浙江杭州311209) [摘要]随着空间钢结构的发展，单一的钢柱结构形式已经满足不了楼层及屋面造型的需求.通过对昆明南站站 房十字圆管柱转换节点加工技术的研究，确定了十字圆管柱转换节点从零部件下料、加工或卷制、组装、焊接等整 套加工方法，成功解决了其加工难题，并为其他类似工程钢构件的加工提供了很好的借鉴作用. [关键词]火车站；钢结构；转换节点；制作；焊接 [中图分类号]TU758.16 [文献标识码]A[文章编号]1002-8498(2015)14-0054-05 The Key Technology About Steel Column Converting Joint Processing of Kunming South Railway Station Pan Jun Wu Desheng Shen Xiaofei Zhejiang Southeast Space Frame Co.Lid.Hangzhou Zhejiang 311209 China) Abstract:With the development of spatial steel structures a single form of structure of steel columns can not satisfy the demand of floors and roof shape.Through the research on the technology about cross-tube column converting joint of Kunming South Railway Station the whole processing method about blanking from parts machining or assembly welding rolling and so on were determined which solved the machining problem suceessfully and provided a good reference for other similar engineering and processing of steel parts. Key words:railroad stations;steel structures;converting joint;manufacture;welding 1工程概况 昆明南站属新建云桂铁路项目，位于昆明市呈 贡新区吴家营片区，距离昆明市行政中心约3km、滇 池约7km 距昆明站约28km 是昆明铁路枢纽内客 运系统的重要组成部分，是规划的昆明地区大型综 a站房整体 合性交通枢纽之一（见图1a).昆明南站结合昆明 独有的地域文化特点，以“雀舞春城、美丽绽放”为 主题，用“孔雀开屏、鲜花绽放”的形象寓意昆明城 市的开放进取和热情好客（见图1b). 昆明南站站房共有4层，地上3层，地下1层. b站房西立面效果 其外框钢柱由十字形钢柱、变截面十字钢柱、十字- 图1昆明南站站房 圆管转换节点、圆管柱组成，如图2所示.本文重点 Fig.1 Kunming South Railway Station 介绍十字-圆管转换节点的加工技...
施工技术 2016年5月下 14 CONSTRUCTION TECHNOLOGY 第45卷第10期 D0I:10.7672/8js2016100014 昆明南站大型十字转圆钢柱抗震转换 节点分析及施工技术* 韩锋 (中铁建设集团有限公司，北京100131) [摘要]云南为地震多发地区，昆明南站高架候车层梁柱节点由下部大型十字型钢骨转换为圆钢柱，经过有限元分 析及三维M设计，在十字下节柱和圆管型上节柱之间连接一个中空的转换节点，节点外围有钢筋混凝土环梁包 裹.这种结构的转换节点不仅截面过渡性好，而且应力集中现象不明显，结构设计能满足现行国家和铁路规范9 度抗震的要求.另外，对工程中的施工难点及关键施工技术进行了研究，并采取了针对性的解决措施，取得了良好 的效果. [关键词]钢骨柱；抗震；转换节点；环梁；有限元分析；施工技术 [中图分类号]TU745.4 [文献标识码]A [文章编号]1002-8498(2016)10-0014-04 Analysis and Construction of Seismic Transfer Joints in Large Cross to Circle Steel Column in South Kunming Station Han Feng (China Railway Construction Group Co.Ltd.Beijing 100131 China) Abstract:Yunnan province is an earthquake prone area.The beam-column at the waiting layer in the South Kunming Station is a large cross to circle steel column which is connected by the hollow transfer joint in the bottom cross column and the top cirele column.The outer of the joint is enveloped by reinforcement conerete.This transfer joint not only has smooth transitional character but also has little concentrated stress.The joint structure can meet the requirement for nine degree earthquake in the related standards.In addition the construction difficulties and key construction technologies are researched and some solutions are put forward which gains good effect. Key words:steel reinforced column;seismic;transfer joint;ring beam;finite element method;construction 0引言 通设施为一体的特大型综合交通枢纽.总建筑面 昆明南站主体结构采用型钢混凝土组合结构，积334736.5m2 站房长438.25m 东西向宽226m. 高架候车厅以下为型钢混凝土组合结构的方形柱，抗震设防烈度8度，按9度设防...
2010年8月 施工技术 第39卷第8期 CONSTRUCTION TECHNOLOGY 121 昆山南站钢结构工程施工技术 叶翔，毕庆槐 (江精工钢结构有限公司，浙江绍兴312030) [摘要]昆山南站为典型的线下式站房，外钢结构为拱壳形式.该工程结构体型复杂、交叉施工问题突出，施工难 度极大.在此背景下，站房拱壳创造性地采用了跨外逆装法，从分段设计、支撑体系设计及测量控制方案、典型节 点施工等方面采取针对性技术措施，并通过施工模拟等手段作为其技术支撑，最终以较小的投人、在极短的时间完 成了工程安装，取得了良好的社会经济效益. [关键询]昆山南站；钢结构；跨外逆装；暗插板节点；施工模拟；异种钢焊接 [中图分类号]TU758 【文献标识码]A[文章编号]1002-8498(2010)08-0121-05 Construction Technology for Kunshan South Railway Station Steel Structure Project Ye Xiang Bi Qinghuai Zhejiang Jinggong Steel Building Co.Lad. Shaoxing Zhejiang 312030 China) Abstract:Kunshan South Railway Station is a typical under-track station with a shell-shape exterior steel structure cover.This project is characterized as its plicated structure overlapping construction and difficulty construction works.Under such circumstances the station shell is installed inversely out of the bay.Based on construction simulation technical measures are adopted from segments design support system design measuring scheme and typical joints construction.The project is finally pleted in short time and less investment which brought good social and economical efficieney. Key words:Kunshan South Railway Station;steel structure;inverse installation out of bay:hidden spill joint;construction simulation;variable section steel welding 1工程概况 京沪高速铁路昆山南站位于江苏省昆山市，在既 有沪宁线以南、宁沪高速公路以北，长江路西侧，距离 既有线昆山站1.7km 是全线唯一的县级市车站及唯 一的两线（京沪高速铁路和泸宁城际铁路）共用车站. 站房以昆山三宝之一的并蒂莲为设计外形（见图1）， 总建筑面积约7.1万m2 设4台12线，分属京沪高速 图1昆山南站 铁路和沪宁城际铁路.站房采用线下式站房的布局， Fig.1 Kunshan South R...
2014年6月上 施工技术 第43卷第11期 CONSTRUCTION TECHNOLOGY 45 D0I:10.7672/5js2014110045 敏感海域大直径钢管沉桩施工环保措施研究* 谭昱，陈儒发，谭逸波 (广东省长大公路工程有限公司，广东广州510620) [摘要]为减弱海洋工程桩基础施工对海域环境造成的不良影响，开展大直径深长桩基础钢管沉桩施工的环境敏 感性研究，本试验设计特制的减噪装置为气幕发生器，以研究沉桩过程中气泡帷幕的减噪效果；同时，对比分析了 不同沉桩形成对环境影响的强弱.结果表明：钢管沉桩时开启气幕发生器，噪声峰值声压衰减量可达24%~74%； 撞击沉桩产生的噪声峰值声压明显大于振动沉桩所产生的噪声峰值声压，撞击沉桩噪声在一定的频带范围内有较 高的能量分布. [关键词]桥梁工程：桩；钢管沉桩：气幕发生器：峰值声压；试验 [中图分类号]U445.551 [文献标识码]A [文章编号]1002-8498(2014)11-0045-04 Research on Environmental Protection Measures in Construction of Steel Pipe Pile Driving with Large Diameter in Sensitive Sea Areas Tan Yu Chen Rufa Tan Yibo Guangdong Provincial Changda Highway Engineering Co.Ld.Guangzhou Guangdong 510620 China) Abstract:To weaken the adverse effects of the pile foundation construction for marine engineering on the marine environment this paper analyzes environmental sensitivity in construction of steel pipe pile driving for large-diameter and deep-long pile foundation.The special noise reduction device that is air curtain generator which has been designed in the experiment.To study noise reduction effect of the bubble curtain in the process of pile driving;simultaneously parative analysis the strength of the impact on the environment of the different pile driving formation.The results shows that attenuation of the noise peak sound pressure up to 24%to 74%when the air curtain generator is turned on.The noise peak sound pressure generated by impact pile driving is significantly greater than by vibratory pile driv...
[关键词］铁路工程；水泥沥青砂浆；搅拌工艺；早期性能；铝粉；膨胀率；含气量 [中图分类号】TU528 [文献标识码]A[文章编号】1002-8498（2016）05-0084-04 StudyonInfluenceofMixingMechanismonEarlyAgePropertiesof Cement Asphalt Mortar Liu Yunpeng, Liu Muyu （HubeiKey Laboratory of Roaday Bridge and Structure Engineering，WuhanUniversity of Technology， Wuhan,Hubei 430070.China) Abstract;The effect of different mixing processes on the early properties of cement asphalt mortar was studied.The results indicate that the mixing sequence of mixtures and asphalt emulsion has a significant effect on the workability，air content and pressive strength of cement asphalt mortar，when the asphalt emulsion and water were uniformly mixed before the mixtures were added to the liquid， the samples prepared has high air content, low pressive strength and stable fluidity. The effct of adding method of aluminum powder on the expansion rate and air content was also studied. The results indicate that the expansion rate and air content were greatly influenced by the adding method. Cement asphalt mortar prepared with the adding method of low mixing for 1min before adding aluminum powder and then slow mixing for 30min has proper expansion rate and stable air content. Key words:railroads; cement asphalt mortar; mixing mechanism; early age properties; aluminum powder;expansion rate；air content 水泥沥青砂浆（cement asphalt mortar，CAM）主 钢轨 要由水泥、沥青乳液、细骨料和多种高效外加剂组 CA砂浆 成，是一种应用于高速铁路板式无碴轨道结构填充 轨道板 层的关键有机-无机复合材料（见图1)，主要起支撑 凸形挡台 混凝土底座 列车自重、弹性减振、调整轨道几何状态的 作用[1]。
[关键词】改造；节点；钢结构；设计；施工 [中图分类号]TU746.3 [文献标识码】A [文章编号]1002-8498（2014)10-0059-03 JointDesignandConstructionofEnlargeSteelCantileverBeam Guo Xiaoming,LiuYunpeng,XieYajun,Wang Xuezhi （Jianyan（Beijing）Construction Engineering Co.，Ld.，Beijing100013，China） Abstract:A existing frame building need to be reconstructed to enlarge the using area，and the steel structure with profiled steel sheet system is adopted.Through construction difficulties analysis and scheme selection， the steel hoop and planting screw are adopted after replacing reinforcement with equal intensity，the choice reason is to avoid cutting column's reinforcement and reduce the structure strength. The using results show that the joints of steel with original beam and column are ensured， and the safety and reliability of the reconstruction structure are guaranteed. Key words:reconstruction；joints；steel structures;design；construction 1工程概况 新增埋件板的背面为原梁钢筋弯折收头处，左右两 北京金地中心商业区原为钢筋混凝土框架结 侧原结构梁钢筋水平贯通或弯锚，原结构柱28根 构，地下2层，地上3层，为增加使用面积，原室内1 Φ28钢筋竖向贯通，箍筋为6肢箍$8@100双向布 层顶、2层顶、3层顶原预留较大洞口封堵一部分，采 置。
Fig.1Layout of the second floor structure 2）上下穿柱钻8个Φ60mm的孔，理论计算尺 图1曲线内原柱其中3个面均为原结构框架 寸66.6mm（（柱宽750mm-保护层30mmx2-钢筋 梁，形成“T"形节点区域，且此处为梁柱节点区域， 直径28mm×8）/7=66.6mm），此孔径只能采用水 钻成孔。
[关键词]桩基础；嵌岩咬合桩；超缓凝混凝土；止水帷幕；施工技术 [中图分类号]TU753.3 [文献标识码]A [文章编号】1002-8498（2015）10-0131-04 ConstructionPracticeofJiechengMZSeriesFullyCasingDrillinthe StratumofLandReclamationwithRiprap SiQinghua,MouRende （The SixthGeologicalUnitofLiaoning Province,Dalian,Liaoning116000,China) AbstractWith rock-socketed drillingrig，fully casing drill named JiechengMZ series can construct rock- socketed pilein the stratum of landreclamation with enrockment.The construction of the interlocking piles not only has the good effects on water-proofing curtain,but also can do retaining and protection of foundation excavation.Based on interlocking piles of deep foundation excavation engineering project of Dalian，this paper proves that the rock-socketed bored secant pile constructed by the fully casing drill is a very applicable technology，and takes the good effcts on economy and environment in the stratum of land reclamation with enrockment. Key words:piles;rock-socketed interlocking pile;ultra-retardation concrete;water-proofing;construction 捷程MZ系列全套管桩机是利用贝诺特工法施 1)杂填土层主要成分由建筑垃圾混凝土大 工灌注桩的一种桩机。
2014年6月下 施工技术 第43卷第12期 CONSTRUCTION TECHNOLOGY 87 D0I:10.7672/5js2014120087 拉萨换流站接地极施工技术 张雄，张海英，胡胜根 (武警水电第二总队第六支队，福建厦门361021) [摘要]对直流输电系统中接地极的原理、构成和技术要求进行闸述，并通过青海一西藏±400kV直流输电工程拉 萨换流站接地极的施工实践，详细介绍了环形接地极的施工流程和施工技术要点，重点对放样定位、极槽开挖、铺 垫炭床、电极焊接、电极敷设、引流电缆连接等工程环节进行详细描述. [关键词]换流站；直流；接地极；施工技术 [中图分类号]TM862 [文献标识码]A [文章编号]1002-8498(2014)12-0087-04 Earth-pole Construction Technology of Lhasa Converter Station Zhang Xiong Zhang Haiying Hu Shenggen No.6 Detachment of No.2 Hydropouver of Armed Police Xiamen Fujian 361021 China) Abstract:Authors analyze the DC transmission system principle the grounding structure and technical requirements Based on the construction practice of Qinghai-Tibet±4O0 kV DC transmission project of Lhasa Converter Station the construction process and key points of the annular grounding is introduced in detail.The construction steps are described in detail such as the setting out trench excavation foundation welding electrodes the electrode carbon bed laying cable connection drainage engineering link. Key words:converter station;direct current(DC);earth-pole;construction 1工程概况 2接地极极址 青海一西藏直流联网工程采用双极两端接地 场地内地下水类型为第四系地层中的孔隙水 方式，输送容量1200MW、额定电压±400kV、额定 和基岩裂隙水.孔隙水为极址内主要的地下水类 电流1500A 最大过负荷电流为1.1倍额定电流， 型，主要受地下径流以及场地内地表沟渠、大气降 最大暂态电流为1.4倍额定电流，拉萨接地极是青 水补给影响，具有明显的季节性，动态变化大.基 海一西藏直流联网工程的重要组成部分之一. 岩裂隙水主要存在基岩裂隙中，受裂隙发育程度影 拉萨接地极极址位于西藏林周县松盘乡松盘 响，含水量小，受地表水补给少，埋藏深.极址场地 村，该接地极场地较为平坦开阔，无洪水冲刷，交通地下水位在15m左右. 较方便. 3接地极本体 接地极采用双环圆形浅埋水平布置，外环直径 3.1电极材料 500m 内环直径400m 内、外环各分为4段；馈电棒 1)馈电棒材料具有较强的...
施工技术 2015年4月上 44 CONSTRUCTION TECHNOLOGY 第44卷第7期 D01:10.7672/sjs2015070044 拉力集中型预应力土层锚杆侧摩阻力分布形态 的影响因素研究 张钦喜，邓超，梁德周2，许超3 (1.北京工业大学建筑工程学院，北京100124；2.北京建材地质工程公司，北京100102； 3.中兵勘察设计研究院，北京100053) [摘要]预应力锚杆已被广泛应用于基坑、隧道等地下工程，拉力集中型预应力错杆也以其独特优势而备受青睐. 但是，对于其错固机理、承载机制的认识相对滞后.采用FLAC3有限元软件，通过分析土层和施工参数，对错杆承 载力、预应力损失等问题进行研究.结果表明：错杆自由段长度增加，错固段的平均摩阻力得到显著提高，而铺杆 的承载力随着错固段长度的增加而提高，错杆错固段平均摩阻力却一直在减小，说明错固段的利用率下降. [关键词]地下工程；错杆；侧摩阻力；有限元分析 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2015)07-0044-05 Research on Influence Factors of the Distribution Form of Concentration of Prestressed Soil Anchor Side Friction Zhang Qinxi Deng Chao' Liang Dezhou Xu Chao (1.College of Architecture and Civil Engineering Beijing University of Technology Beijing 100124 China; 2.Beijing Building Material Geological Engineering Corporation Beijing 100102 China; 3.Ordnance Industry Institute of Geotechnical Surrey Design Beijing 100053 China) Abstract:Prestressed anchor has been widely used in underground engineering such as foundation excavation tunnel and so on.Concentrated tension prestressed anchor with its unique advantages favored.However for the lagging understanding of the anchoring mechanism and the bearing mechanism it needs to be improved.In this paper through analysis of the soil and construction parameters to research on the problems such as the bearing capacity of anchor prestress loss.And the results show that with the increase of bolt free length the anchoring section of average frictional resistance improved signifi...
施工技术 2011年8月上 94 CONSTRUCTION TECHNOLOGY 第40卷第346期 拉力型锚索破坏过程试验研究 王永卫，陈从新1，刘秀敏，王群伟2，李群2 (1.中国科学院武汉岩土力学研究所，湖北武汉430071；2.中国化学工程第十三建设有限公司，河北沧州061000) [摘要]当错索、注浆体和围岩体的强度确定并满足设计要求时，拉力型铺索承载力的发挥主要受控于错固段错杆 体与注浆体界面及注浆体与围岩体界面上的抗剪强度.根据西江特大桥两岸边坡现场锚索的极限抗拔试验确定 错索的破坏荷载，通过计算分析认为注浆体与围岩体界面上的抗剪强度不足是导致错索失效的原因.研究认为， 注浆体与围岩体界面抗剪强度与浆体的抗剪强度、单轴抗压强度、弹性模量以及注浆压力成正比，与注浆材料的水 灰比成反比.拉力型错索在施工时，浆体配制、钻孔、注浆等每一工艺都应该严格控制. [关键词]错索；错周力；界面剪应力；传递机制 [中图分类号]TU753.62;TU475 [文献标识码]A [文章编号]1002-8498(2011)15-0094-04 Research on Failure Progress of Extensional-force-type Anchor Cable Wang Yongwei' Chen Congxin' Liu Xiumin' Wang Qunwei? Li Qun2 (1.Institute of Rock and Soil Mechanics Chinese Academy of Sciences Wuhan Hubei 430071 China; 2.China National Chemical Engineering Thirteenth Construction Co.Lid. Cangzhou Hebei 061000 China) Abstract:When strength of the cable the grouting cement and the rock is determined to satisfy requirements of the designer the load-bearing capacity of the extensional-force-type anchor cable is controlled by shear strength of interface of the cable and grouting cement and the interface of grouting cement and rock.According to on-site ultimate pullout test of the anchor cable of Xijiang Bridge the failure load of the anchor cable is determined.By calculation and analysis the authors think that lack of shear strength of interface of grout and rock is the failure reasons of anchor.According to research and analysis the shear strength of interface of grouting cement and rock is proportional to the ...
施工技术 2011年10月下 34 CONSTRUCTION TECHNOLOGY 第40卷第351期 抢风岭隧道斜井设置与施工控制 黄启贵，富志强，冯冠宙，周委 (中交一公局第三工程有限公司，北京101102) [摘要]以荣（成）乌（海）高速公路抢风岭隧道为例，介绍了在复杂地质条件下特长隧道开通施工斜井的必要性、 斜井施工的特点与难点.从选址、方案比选、参数设计、经济合理性、防排水防护、下穿省道、交叉口施工及协调工 作面等方面，对斜井施工方法及控制要点进行了详细论述.结果表明，施工质量得到保证，工期进一步缩短. [关键词]隧道工程；斜井；施工；控制 [中图分类号]U455.4[文献标识码]A [文章编号]1002-8498(2011)20-0034-03 Inclined Shaft Setting and Construction Control of Qiangfengling Tunnel Huang Qigui Fu Zhiqiang Feng Guanzhou Zhou Wei (The Third Engineering Co.Ld.of the First Highway Engineering Bureau of CCCC Beijing 101102 China) Abstract:Based on Qiangfengling tunnel on Rongcheng-Wuhai Highway the necessity of inclined shaft is introduced in super-long tunnel under plex geological conditions as well as characteristics and difficulties of inclined shaft.The construction methods and control points of inclined shaft are introduced from location scheme parison parameter choice economic rationality and waterproof and drainage protecting.The result shows that the construction quality is ensured and the construction period is shortened. Key words:tunnels;inclined shaft;construction;control 1工程概况 3)斜井下穿S203省道，交通流量大，必须保证 抢风岭特长隧道全长5495m 是荣（成）乌（海）施工及省道运输车辆安全. 高速灵丘至山阴段的控制性工程，该隧道灵丘端寒武 4)斜井处工作面多，洞内交通流量大，须合理 系、奥陶系、石炭系、侏罗系及第四系地层岩组均有分设置避让车道，保证交通畅通与安全. 布，在施工过程中遇到严重浅埋偏压地段、小煤窑采3斜井设置 空区坍塌冒顶等情况，并有涌水现象发生.进口段V3.1选址 级浅埋和V级围岩地段比例大，右洞长846m 左洞长 1)距离主洞口位置在未施工斜井前，工程进 920m.开工前期施工开挖只能采取超短台阶施工，每度面临较大压力.经过5个多月施工，主洞总计进 循环施作一钢拱架，一天施工两循环进尺1.0~ 洞不足300m 无法按合同工期要求完成，所以在距 1.2m 进尺速度缓慢，难以在19个月的合同...
[关键词】桩基础；抗滑桩；数值分析；边坡稳定性 [中图分类号】TU47[文献标识码]A[文章编号]1002-8498(2015）21-0081-04 ForceAnalysis and Optimal Design of Anti-slidePile asPile Foundationof theLandscapeRoad Li Gang （Ji'nan Rail Transit Group Co.，Lud.，Ji’nan,Shandong 250o, China) Abstract;When establishing reasonable slope treatment schemes，anti-slide piles are used，meanwhile these piles are designed as the pile foundation of the landscape road.Numerical methods are adopted to perform the feasible analysis. The result shows that the anti-slide pile acting as the pile foundation could not only ensure the slope safety，but also meet the design requirements of pile foundation.In addition， based on the strengthreductionmethod， the influence of anti-slide pile spacing，elasticity modulus and pile length on the slope stability are analyzed. Key words:piles;anti-slide piles;numerical analysis;slope stability 0引言了抗滑桩兼作桩基设计的一个疑问。
施工技术 2014年9月上 36 CONSTRUCTION TECHNOLOGY 第43卷第17期 D01:10.7672/gjs2014170036 抗浮锚杆布置形式的数值模拟与对比分析 杨淑娟1，张同波2，于德湖1，袁鹏博 (1.青岛理工大学土木工程学院，山东青岛266033；2.青建集团股份公司，山东青岛266071) [摘要]抗浮错杆由于布置灵活，造价合理，常被用作地下室抗浮措施.常用的抗浮锚杆布置方式有均匀布置和梅 花状布置两种，但何种错杆布置方式更经济、有效缺乏相应研究.通过运用ANSYS有限元软件，采用薄板的小挠 度理论，对实际工程中锚杆均匀布置和梅花状布置两种形式进行有限元分析，发现采用梅花状布置时底板受力更 小，铺杆受力更均匀. [关键词]结构底板；有限元分析；抗浮错杆；受力影响 [中图分类号]TU472 [文献标识码]A [文章编号]1002-8498(2014)17-0036-03 Numerical Simulation and Comparison Analysis of Different Arrangements of Anti-floating Anchor Yang Shujuan' Zhang Tongbo2 Yu Dehu' Yuan Pengbo' (1.School of Civil Engineering Qingdao Technological University Qingdao Shandong 266033 China; 2.Qingjian Group Co.Ld.Qingdao Shandong 266071 China) Abstract:Anti-floating anchor is often used as anti-floating measures of basements.The mon use of arrangement forms includes uniform arrangement and plum shape arrangement form but which one is more economical and effective still lacks appropriate research.This paper analyzes the effects of two arrangement forms and draws a conclusion that foundation slab bears smaller stress and anti-floating anchors are stressed more uniformly when plum shape arrangement form is adopted according to the theory of thin plate with small deformations by ANSYS finite element software. Key words:structural floor;finite element analysis;anti-floating anchors;force influence 1抗浮锚杆与底板相互作用分析的基本原理 K@=R. (2) 建筑物抵抗地下水浮力的有利因素主要包括式中：K为底板刚度矩阵；R为底板节点荷载向量. 自身重力、覆土重力和锚杆抗拔力.地下水位过高 单独分析抗浮错杆，确定其刚度矩阵，建立其 时，上浮水压力超过压重，使底板与...
2013年6月下 施工技术 第42卷第12期 CONSTRUCTION TECHNOLOGY 107 D0I:10.7672/5gj82013120107 投标阶段的报价策略与技巧 路玉，杨邑文，王丹 (武警水电第二总队，江西南昌330096) [摘要]为编制高质量的投标书，确定科学合理的投标报价，提高投标项目的中标率，实现利润最大化，投标前要提 前介人，摸清竞争对手情况，做好现场的调查工作，充分理解招标文件和实际图纸.投标报价的编制过程中，要复 核工程量，编制施工组织设计以及选择好定额和费率.简明拒要地闹述了投标各阶段应重点做好的工作，介绍了 投标报价的组成及编制方法，重点介绍了投标报价的策略与技巧. [关键词]投标：报价；策略；技巧 [中图分类号]TU723.2 [文献标识码]A [文章编号]1002-8498(2013)12-0107-03 Quotation Strategy and Skill in Bidding Stage Lu Yu Yang Yiwen Wang Dan No.2 Hydropower Force of Armed Police Nanchang Jiangxi 330096 China) Abstract:To work out high quality bidding book determine scientific bidding quotation improve the winning rate and realize benefit maximization the engineer must participate in understand petitor and does field work and study bidding document and the practical drawings before bidding.During pilation the engineer must recalculate engineering quantities pile construction organization design and select correct quota and fee rate.This paper simply introduces works should be done in every bidding stage and shows position and pilation method of bidding and quotation strategy and skill. Key words:bidding;quotation;strategy;skill 随着市场竞争机制的日趋完善，以及建筑市场 前瞻性，在项目进人招投标阶段前就介人，对拟参 的不断规范化，通过参加工程招投标活动承接工程 与的项目展开信息收集工作，第一时间掌握项目的 任务，已逐步成为绝大部分施工单位（承包商）获取规模、特征、资金状况、工作内容等信息，为后期投 施工任务的主要途径.因此，在竞争日益激烈的投标报价和决策做好充分准备，这一定会成为击败竞 标活动中占领一席之地，也就成为了施工单位 争对手至关重要的一环. (承包商)不断探索与追求的永恒目标.而合理的 1.2竞争对手情况摸底 投标价格，正确的投标策略与技巧，无疑将是出奇 俗话说，知己知彼，百战不殆.所以，通过合 制胜的法宝. 法、有效的手段，掌握竞争对手的信息，摸清对手的 那么，如何在招投...
施工技术 2013年5月下 108 CONSTRUCTION TECHNOLOGY 第42卷第10期 D0I:10.7672/sgjs2013100108 投标施工组织设计的编制研究 米舰 (北京住总集团有限责任公司，北京100101) [摘要]围绕投标文件中施工组织设计内容，针对当前投标施工组织中存在的一些问题缺陷，列举实例，分析原因， 最后提出纠正措施.指出投标施工组织设计编写时应严肃认真、科学先进，具有可操作性，要求投标文件主题鲜 明，重点突出，防止避重就轻，另外需加强新规范、规程的学习，了解掌握新的信息，重视图示作用，使之一目了然. [关键词]项目管理；投标；施工组织；编制 [中图分类号]TU71 [文献标识码]A [文章编号]1002-8498(2013)10-0108-03 Research on Compilation of Construction Organization Design Documents for Tendering Mi Jian (Beijing Uni-Construction Group Co.Ltd.Beijing 100101 China) Abstract:With respect to preparing the construction organization design in tendering documents this paper raises the faults identified in current practice listed examples analyzed the reasons and proposes solutions to correct them.It is pointed out that the pilation of the tending documents regrading construction organization design should be serious scientific and specific with operability.It is required that the tendering documents should have a clear idea to prevent avoiding critical issues.New codes or standards should be learned to update the knowledge on technology development.The function of illustrations should be highlighted to improve the readability of the documents. Key words:project management;tendering construction organization;pilation 随着建筑市场的日趋完善，投招标工作也逐步设计应完全相符（除非施工条件变化或工程内容变 走入正轨，作为投标文件之一的施工组织设计（施 更)，不能随意更改.要求编写人以严肃认真的态 工方案)，在评标中起到非常重要的作用.编制水 度，实事求是的作风，对待该项工作.而现实中常 平的高低好坏完整与否、针对性等因素将直接影响 会出现：投标施工组织设计写得精彩纷呈，先进的 到投标方是否能成为工程的承包人. 设备、优质的材料、新的技术工艺一应俱全.中标 1施工组织设计编制要求...
施工技术 2014年10月上 70 CONSTRUCTION TECHNOLOGY 第43卷第19期 D01:10.7672/sjs2014190070 扩底灌注桩承载性能机理研究 高长征，王顺利2，赵自东3 (1.华北水利水电大学建筑学院，河南郑州450001；2.匠人规划建筑设计股份有限公司， 河南郑州450000；3.郑州大学土木工程学院，河南郑州450000) [摘要]以巩义市某住宅小区场地为研究背景，分别建立等截面灌注桩和扩底灌注桩的单桩有限元模型并计算、讨 论单桩受力性能.对比同一桩型、不同桩身截面尺寸和不同桩型、同一截面尺寸下的桩端截面应力分布特征，结果 表明，扩底端能够优化桩端截面受力特性，桩身长度和直径比值在(25 30)区间内时桩端截面受力更趋合理；从而 可根据基桩直径选取适宜的桩身长度，然后根据具体工程地质资料选择合适的桩端持力层. [关键词]柱；灌注桩；承载性能；数值模拟；应力 [中图分类号]TU318.1 [文献标识码]A [文章编号]1002-8498(2014)19-0070-03 Research on the Bearing Capacity Mechanism of Cast-in-situ Bored Pile Gao Changzheng Wang Shunli Zhao Zidong (1.College of Architecture North China Unirersity of Water Resources and Electric Power Zhengzhou He'nan 450001 China;2.Giant Union Design Group Co.Lid.Zhengzhou He'nan 450000 China; 3.School of Civil Engineering Zhengzhou Unizersity Zhengzhou He'nan 450000 China) Abstract:In the context of the geological conditions of a residential in Gongyi city different finite element models of cast-in-situ piles with uniform cross-section and identical cross-section were established for finite element calculations.This paper pared with the pile section stress distribution in two cases the same type of pile but different cross-section size and different types of pile but the same cross-section size.The results show that the expansion of the bottom of the pile cross-section can optimize the force characteristics.When the pile diameter ratio is between 25 and 30 the mechanical behavior of the bottom cross-section is more rea...
2012年3月下 施工技术 第41卷第361期 CONSTRUCTION TECHNOLOGY 107 扣件式钢管脚手架专项整治成果分析 糜嘉平 (中国模板协会，北京100088) [摘要]扣件式钢管脚手架专项整治已接近8年时间，但没有收到预期效果，脚手架倒塌事故反而越来越严重.其 主要原因是监管力度不到位，没有按照专项整治措施的内容进行具体工作.建议健全管理体制和制度、加强监控 机构和监管力度；限制扣件式钢管脚手架的使用范围和大力推广应用新型脚手架. [关键词]脚手架；钢管脚手架；扣件；整治；建议 [中图分类号]TU731.2 [文献标识码]A[文章编号]1002-8498(2012)06-0107-03 Results of Fastener-style Steel Tube Scaffolds After Special Treatment Mi Jiaping China Formwork Association Beijing 100088 China) Abstract:The special treatment passed nearby eight years for fastener-style steel tube scaffolds however it has not gained expected effects.Because there is no attentive supervision and no working according to special treatment methods the collapse accidences are more serious.The author suggests to perfect management system strengthen monitoring mechanism and supervision level restrict the usage scope of fastener-style steel tube scaffold and popularize the application of new scaffold. Key words:scaffolds;steel tube scaffolds;fasteners;treatment;suggestion 2002年7月以来，浙江省杭州、宁波等地区连的监管轨道. 续发生了3起由于使用劣质钢管、扣件造成的建筑 专项整治的最终目标是防止劣质钢管、扣件进 施工支模架倒塌重大伤亡事故.国务院领导对此 入施工工地，减少脚手架坍塌事故和伤亡人数.仅 非常重视，温家宝总理批示“关键在于严肃执法，追从已报道的2003一2010年扣件式钢管脚手架倒塌 究事故责任者的法律责任，要从源头上堵住劣质建伤亡的不完全统计可以看到，2003年是扣件式钢管 材的生产流通渠道，并开展一次专项整治工作”. 脚手架专项整治年，当年脚手架倒塌事故8次，伤亡 根据国务院领导的批示，国家质检总局等9部委于 人数142人，专项整治的第2年(2004年)，脚手架 2003年9月18日联合下发了《关于开展建材市场 倒塌事故达到20次，伤亡人数达到221人，没有阶 专项整治工作的通知》，如今专项整治是否达到了 段性效果.2005一2009年脚手架倒塌事故分别为 目标，取得了哪些成果备受关注. 16 14 24 24 31起，伤亡人数分别为149 92 181， 1专项整治目标 153 144人.经过8年专项整治，脚手架倒塌事故 这...
施工技术 2013年7月下 98 CONSTRUCTION TECHNOLOGY 第42卷第14期 D0I:10.7672/sgjs2013140098 扣件式钢管满堂脚手架ANSYS受力性能分析* 周洪涛，郭志鑫 (中国建筑第八工程局有限公司，上海200120) [摘要]通过对扣件式钢管满堂脚手架在不同剪刀撑搭设方案、不同扫地杆布设方案、考虑初始缺陷、节点刚度变 化、钢管壁厚变化等情况进行ANSYS有限元分析，计算其对脚手架稳定承载力的影响.结果表明，与水平剪刀撑 相比，竖向剪刀撑尤其重要；如果不搭设扫地杆或只搭设一个方向，承载力会严重下降，因此为保证扣件式钢管满 堂脚手架稳定性，尽量搭设纵横向扫地杆. [关键词]脚手架；扣件式；受力性能；分析 [中图分类号]TU731.2 [文献标识码]A [文章编号]1002-8498(2013)14-0098-04 Mechanical Analysis of Fastener Steel Tube Full Hall Scaffold with ANSYS Zhou Hongtao Guo Zhixin China Construction Eighth Engineering Division Shanghai 200120 China) Abstract:The fastener steel tube full hall scaffolds were simulated by ANSYS on the different geometric parameters considering the wall thickness of steel pipe the diagonal bracing the bottom reinforcing tube the initial defects and so on.The simulation results show that pared with horizontal bridging vertical bridging is more important.As well as the bottom reinforcing tube should be set to ensure the stability of fastener steel tube full hall scaffold. Key words:scaffolds;fastener;force performance;analysis 0引言 取决于对横杆与立杆扣件节点的简化，可分为：铰 扣件式钢管满堂脚手架，指在纵、横方向由不接架模型、节点半刚性模型和刚节点框架模型.在 少于3排的立杆构成，并与水平杆、水平剪刀撑、竖这3种计算模型中，按框架模型计算所得的失稳模 向剪刀撑等构件通过扣件连接形成的承力支架，架 态与试验结果一致，计算值与试验值有相同的规 体顶部施工荷载通过木方下部的水平杆传给立杆，律，但数值有所差异.在本文有限元分析中，参考 顶部立杆呈偏心受压状态.其在建筑工程施工中 陆征然等在扣件式钢管满堂支撑体系稳定性的有 有着广泛的应用，受力性能也是众多学者研究的对 限元分析及试验研究所用到的节点半刚性模型，利 象.在实际工程施工中，脚手架的选材、计算、搭设 用扭转弹簧单元模拟直角扣件的半刚性性质. 以及人员管理等往往与规范或施工方案存在较多 对于施工中存在的情况，本文选取以下几个方 差异，使得脚手架的整体受力性能产生较大改变. 面进行分析：①不同剪刀撑搭设方案对脚手架受力 ...
2016年11月上 施工技术 第45卷第21期 CONSTRUCTION TECHNOLOGY 49 D0I:10.7672/5gj52016210049 扣件式钢管模架立杆受力对周围杆件的影响* 张贵国，陈辉，牛学超，王天立 (北京工业职业技术学院建筑与测绘工程学院，北京100043) [摘要]通过对6×4跨扣件式钢管模板支架结构中心立杆进行垂直加载试验，测量模架中各杆件上所设点的竖向 位移，分析立杆的加载对周围杆件变形的影响程度.然后用MATLAB7.0编制程序，绘制中心立杆加载时，其周围 杆件的变形曲线，以及模板支架上各测点位移随中心立杆荷载增加而变化的曲线，并对测点位移曲线进行分析比 较，从而得出试验结论. [关键词]模板；支架；立杆；加载；变形 [中图分类号]TU731.2 [文献标识码]A [文章编号]1002-8498(2016)21-0049-03 Effect of the Upright Tube in the Steel Tubular Formwork Support with Couplers Under Stress for Bar Around Zhang Guiguo Chen Hui Niu Xuechao Wang Tianli School of Architecture and Surveying and Mapping Beijing Polytechnic College Beijing 100043 China) Abstract:Through the test that the upright tube is uploaded vertically for the center upright tube in the 6 x4 span steel tubular formwork support with couplers survey the vertical displacement of measuring points on the bars in the formwork support analyze effeet for the bar around in the upright tube loading. Then by MATLAB 7.0 programming draw the deformation curve of the bar around while the center upright tube loading and draw the displacement curve of measuring points on the formwork support while the center upright tube loading and the displacement curve of measuring points was pared and analyzed.Thus conclusion was drawn for test. Key words:formwork;supports;upright tube;loading;deformation 1模架立杆受力加载试验 1.1扣件式钢管模板支架搭设方案 选用48×3.6的钢管和连接扣件以及可调托 加载点 撑等，在平面上的长度方向搭设6跨，每跨为 900mm;短向搭设4跨，每跨为900mm.各水平横杆 在模架周边伸出300mm.在立面上共搭设3层，第 050000000000 a模板支架平面...