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A platform for research: civil engineering, architecture and urbanism
Foundation pit construction simulation test model close to existing structure and test method
The invention discloses a foundation pit construction simulation test model close to an existing structure and a test method. The test model comprises a test box (1), a foundation pit earth cutting device (2), the existing structure, a foundation pit model (5), a foundation pit support model (6), a supporting sliding assembly, a strain gauge (13) and a displacement meter (14). The test box is arranged in the supporting sliding assembly and is filled with a soil body; the existing structure is arranged in a soil body of the test box, and the foundation pit support model is arranged in the soil body of the test box and is close to the existing structure; the foundation pit earth cutting device is movably arranged above the test box through a supporting sliding assembly, and the foundation pit earth cutting device extends into the test box and cuts earth in the foundation pit support model to form a foundation pit model; the strain gauges are arranged on the existing structure and the foundation pit support model at intervals, and the displacement meters are arranged on the test box at intervals. The problems that in the prior art, a theoretical analysis method is large in simulation prediction error, field monitoring is limited by instrument and environment factors, and manpower and material resources are consumed can be solved.
本发明公开了一种近接既有构筑物的基坑施工模拟试验模型及试验方法，包括试验箱(1)、基坑挖土装置(2)、既有构筑物、基坑模型(5)、基坑围护模型(6)、支撑滑动组件、应变片(13)和位移计(14)；试验箱设在支撑滑动组件内并填充土体；既有构筑物设在试验箱的土体内，基坑围护模型设在试验箱土体内且近接既有构筑物；基坑挖土装置通过支撑滑动组件可移动式设在试验箱上方，基坑挖土装置伸入试验箱内并在基坑围护模型内挖土形成基坑模型；若干个应变片间隔设在既有构筑物和基坑围护模型上，若干个位移计间隔设在试验箱上。本发明能解决现有技术中理论分析法模拟预测误差大、现场监测受限于仪器和环境因素及耗费人力物力的问题。
Foundation pit construction simulation test model close to existing structure and test method
The invention discloses a foundation pit construction simulation test model close to an existing structure and a test method. The test model comprises a test box (1), a foundation pit earth cutting device (2), the existing structure, a foundation pit model (5), a foundation pit support model (6), a supporting sliding assembly, a strain gauge (13) and a displacement meter (14). The test box is arranged in the supporting sliding assembly and is filled with a soil body; the existing structure is arranged in a soil body of the test box, and the foundation pit support model is arranged in the soil body of the test box and is close to the existing structure; the foundation pit earth cutting device is movably arranged above the test box through a supporting sliding assembly, and the foundation pit earth cutting device extends into the test box and cuts earth in the foundation pit support model to form a foundation pit model; the strain gauges are arranged on the existing structure and the foundation pit support model at intervals, and the displacement meters are arranged on the test box at intervals. The problems that in the prior art, a theoretical analysis method is large in simulation prediction error, field monitoring is limited by instrument and environment factors, and manpower and material resources are consumed can be solved.
本发明公开了一种近接既有构筑物的基坑施工模拟试验模型及试验方法，包括试验箱(1)、基坑挖土装置(2)、既有构筑物、基坑模型(5)、基坑围护模型(6)、支撑滑动组件、应变片(13)和位移计(14)；试验箱设在支撑滑动组件内并填充土体；既有构筑物设在试验箱的土体内，基坑围护模型设在试验箱土体内且近接既有构筑物；基坑挖土装置通过支撑滑动组件可移动式设在试验箱上方，基坑挖土装置伸入试验箱内并在基坑围护模型内挖土形成基坑模型；若干个应变片间隔设在既有构筑物和基坑围护模型上，若干个位移计间隔设在试验箱上。本发明能解决现有技术中理论分析法模拟预测误差大、现场监测受限于仪器和环境因素及耗费人力物力的问题。
Foundation pit construction simulation test model close to existing structure and test method
近接既有构筑物的基坑施工模拟试验模型及试验方法
MO FAN (author) / LIN XITAO (author) / GAO ZONGLI (author) / HUANG GUI (author) / CHENG HAILIN (author) / XIE DONGQUAN (author) / LU SHIYING (author) / PENG BOLUN (author) / LI HANJIE (author) / MENG SIYU (author)
2023-09-22
Patent
Electronic Resource
Chinese
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