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来源:http://www.jnlsgbz.com/ 日期:2020-05-14 发布人:admin
  拉森钢板桩是一种特制的型钢板桩,用打桩机及振荡锤将钢板桩压入地下组成一道接连的板墙,作为深基坑开挖的暂时挡土、挡水围护结构。钢板桩结构具有质量轻、强度高、锁口亲近、水密性好、施工简洁、施工速度快等优势。
  Larsen steel sheet pile is a special type of steel sheet pile, which is pressed into the ground by a pile driver and an oscillating hammer to form a continuous plate wall as a temporary retaining structure for deep foundation pit excavation. Steel sheet pile structure has the advantages of light weight, high strength, close lock mouth, good water tightness, simple construction and fast construction speed.
  频年来跟着经济建设和城市建设的敏捷开展,拉森钢板桩作为围护结构在民用、市政、桥梁、工业修建的根本工程中得到了普通运用。拉森钢板桩支护形式有悬臂式、锚拉式、保持式等,下面简略论述一下拉森钢板桩深基坑支护施工经历。
  In recent years, with the rapid development of economic construction and urban construction, Larsen steel sheet pile, as a retaining structure, has been widely used in civil, municipal, bridge and industrial construction projects. The supporting forms of Larsen steel sheet pile include cantilever type, anchor type and retaining type. The following briefly discusses the supporting construction experience of deep foundation pit of Larsen steel sheet pile.
  基坑支护检测仪器运用施工单位现有的水准仪和经纬仪进行钢板桩外地表沉降和钢板桩极点水平位移测量。水准仪用于测量地上和开挖进程控制标高和施工中的沉降,经纬仪用于测量在钢板桩顶差异方位的施工控制点的水平位移,主若是 CD 两轴主厂房柱根本水平位移和沉降调查。用监测数据反应来调理处理施工中的突发情况。
钢板桩施工租赁
  The existing level and theodolite of the construction company are used to measure the external surface settlement of steel sheet pile and the horizontal displacement of steel sheet pile pole. The level gauge is used to measure the ground and excavation process control elevation and settlement during construction. The theodolite is used to measure the horizontal displacement of the construction control points in the different directions of the steel sheet pile top. The main purpose is to investigate the fundamental horizontal displacement and settlement of the columns of the main power house with two axes of CD. Use the monitoring data response to adjust and deal with the emergencies in the construction.
  监测的布置和监测频率①在进行主厂房柱根本施工中,只对支护系统进行监测。经研讨距离钢板桩顶部每 5 m 装备1个控制点,在基坑开挖前欺诈仪器测出控制点的坐标作为初始坐标值。监测点布设完结 后对原始值进行 2 次测量,以减小误差。基坑监测的频率随土方开挖进展和基坑改变情况作调理。
  Monitoring arrangement and monitoring frequency ① in the fundamental construction of the main workshop column, only the support system is monitored. After discussion, a control point is equipped every 5m from the top of the steel sheet pile. Before the excavation of the foundation pit, the coordinate of the control point is measured by the fraudulent instrument as the initial coordinate value. After the completion of monitoring point layout, the original value is measured twice to reduce the error. The frequency of foundation pit monitoring is adjusted with the progress of earthwork excavation and the change of foundation pit.
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