Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Comprehensive test method for axial force of pile body of existing building
The invention relates to the technical field of building pile cutting forced landing, in particular to an existing building pile body axial force comprehensive test method which sequentially comprises the steps that a test pile is selected, and a stress sensor is installed on the surface of a pile body; reading the reading of the stress sensor; cutting surface concrete around the stress sensor on the test pile and forming a cutting groove, and reading the stress sensor reading after the cutting groove; calculating the axial force N0i of the pile body of the test pile according to the readings of the stress sensors before and after grooving; a counter-force bearing platform is arranged on the test pile, a jack is installed, and the jack is supported between the counter-force bearing platform and the bottom face of the building foundation; the jack is controlled to be loaded to 0.8 N0i, the pile is cut, and the load N1i of the jack is read; and taking a comprehensive correction coefficient # imgabs0 # to obtain all pile body axial forces Ni = lambda N0i. The method has the effects that important basis is provided for the specific pile cutting position and the pile cutting sequence of building pile cutting forced landing construction, and the safety of deviation rectifying work is improved.
本申请涉及建筑截桩迫降的技术领域，尤其是涉及一种既有建筑物桩身轴力综合测试方法，依次包括：选择测试桩并在桩身表面安装应力传感器；读取应力传感器读数；对测试桩上应力传感器周边的表面混凝土切割并形成切槽，读取切槽后应力传感器读数；根据切槽前后应力传感器读数计算测试桩桩身轴力N0i；在测试桩上设置反力承台并安装千斤顶，使千斤顶支顶在反力承台和建筑基础底面之间；控制千斤顶加载至0.8N0i，截桩并读取千斤顶载荷N1i；取综合修正系数#imgabs0#得到所有桩身轴力Ni＝λN0i。本申请具有为建筑截桩迫降施工的具体截桩桩位、截桩顺序提供重要依据，提高纠偏工作的安全性的效果。
Comprehensive test method for axial force of pile body of existing building
The invention relates to the technical field of building pile cutting forced landing, in particular to an existing building pile body axial force comprehensive test method which sequentially comprises the steps that a test pile is selected, and a stress sensor is installed on the surface of a pile body; reading the reading of the stress sensor; cutting surface concrete around the stress sensor on the test pile and forming a cutting groove, and reading the stress sensor reading after the cutting groove; calculating the axial force N0i of the pile body of the test pile according to the readings of the stress sensors before and after grooving; a counter-force bearing platform is arranged on the test pile, a jack is installed, and the jack is supported between the counter-force bearing platform and the bottom face of the building foundation; the jack is controlled to be loaded to 0.8 N0i, the pile is cut, and the load N1i of the jack is read; and taking a comprehensive correction coefficient # imgabs0 # to obtain all pile body axial forces Ni = lambda N0i. The method has the effects that important basis is provided for the specific pile cutting position and the pile cutting sequence of building pile cutting forced landing construction, and the safety of deviation rectifying work is improved.
本申请涉及建筑截桩迫降的技术领域，尤其是涉及一种既有建筑物桩身轴力综合测试方法，依次包括：选择测试桩并在桩身表面安装应力传感器；读取应力传感器读数；对测试桩上应力传感器周边的表面混凝土切割并形成切槽，读取切槽后应力传感器读数；根据切槽前后应力传感器读数计算测试桩桩身轴力N0i；在测试桩上设置反力承台并安装千斤顶，使千斤顶支顶在反力承台和建筑基础底面之间；控制千斤顶加载至0.8N0i，截桩并读取千斤顶载荷N1i；取综合修正系数#imgabs0#得到所有桩身轴力Ni＝λN0i。本申请具有为建筑截桩迫降施工的具体截桩桩位、截桩顺序提供重要依据，提高纠偏工作的安全性的效果。
Comprehensive test method for axial force of pile body of existing building
一种既有建筑物桩身轴力综合测试方法
MO ZHENLIN (Autor:in) / ZHAO QIMING (Autor:in) / YUAN YONGQIANG (Autor:in) / WANG RUIKOU (Autor:in) / PENG XIAOJUN (Autor:in) / XIAO YANG (Autor:in) / YI XIANG (Autor:in) / YANG SHAOPENG (Autor:in) / PENG RAN (Autor:in)
22.10.2024
Patent
Elektronische Ressource
Chinesisch
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