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A platform for research: civil engineering, architecture and urbanism
Inner supporting device capable of accurately applying prestress in foundation pit model test
The invention discloses an inner support device capable of accurately applying prestress in a foundation pit model test, which comprises an inner support model main body made of a PVC (polyvinyl chloride) pipe, a pressure sensor is arranged in the middle of the inner support model main body, and bolts in threaded connection with the inner support model main body are arranged at two ends of the inner support model main body. The supporting length of the inner supporting model is adjusted by screwing the bolt, the prestress is applied by adjusting the supporting length of the inner supporting model, and the magnitude of the applied prestress is measured through the pressure sensor. According to the invention, the accurate axial pressure value of the inner support model can be obtained through the pressure sensor, the tedious operation of measuring the inner support pressure by adopting a strain gauge in the traditional test method is avoided, the test device is more accurate, concise, reliable and efficient, the accurate application of the prestress is realized through simple operation, and the accurate support axial force value can be obtained.
本发明公开了一种基坑模型试验中可精确施加预应力的内支撑装置，包括采用PVC管材制成的内支撑模型主体，在所述内支撑模型主体中部设有压力传感器，两端设有与其通过螺纹连接的螺栓，使用时，所述螺栓与地连墙模型装置铰接，通过拧动所述螺栓来调节内支撑模型的支撑长度，通过调节内支撑模型的支撑长度来施加预应力，通过所述压力传感器测量施加预应力的大小。本发明通过压力传感器可以获得准确的内支撑模型轴压数值，避免了传统试验方法中，采用应变片测量内支撑压力的繁琐操作，使试验装置更加精确、简洁、可靠、高效，通过简单的操作实现了预应力的精确施加，并可获得准确的支撑轴力数值。
Inner supporting device capable of accurately applying prestress in foundation pit model test
The invention discloses an inner support device capable of accurately applying prestress in a foundation pit model test, which comprises an inner support model main body made of a PVC (polyvinyl chloride) pipe, a pressure sensor is arranged in the middle of the inner support model main body, and bolts in threaded connection with the inner support model main body are arranged at two ends of the inner support model main body. The supporting length of the inner supporting model is adjusted by screwing the bolt, the prestress is applied by adjusting the supporting length of the inner supporting model, and the magnitude of the applied prestress is measured through the pressure sensor. According to the invention, the accurate axial pressure value of the inner support model can be obtained through the pressure sensor, the tedious operation of measuring the inner support pressure by adopting a strain gauge in the traditional test method is avoided, the test device is more accurate, concise, reliable and efficient, the accurate application of the prestress is realized through simple operation, and the accurate support axial force value can be obtained.
本发明公开了一种基坑模型试验中可精确施加预应力的内支撑装置，包括采用PVC管材制成的内支撑模型主体，在所述内支撑模型主体中部设有压力传感器，两端设有与其通过螺纹连接的螺栓，使用时，所述螺栓与地连墙模型装置铰接，通过拧动所述螺栓来调节内支撑模型的支撑长度，通过调节内支撑模型的支撑长度来施加预应力，通过所述压力传感器测量施加预应力的大小。本发明通过压力传感器可以获得准确的内支撑模型轴压数值，避免了传统试验方法中，采用应变片测量内支撑压力的繁琐操作，使试验装置更加精确、简洁、可靠、高效，通过简单的操作实现了预应力的精确施加，并可获得准确的支撑轴力数值。
Inner supporting device capable of accurately applying prestress in foundation pit model test
一种基坑模型试验中可精确施加预应力的内支撑装置
ZHOU QIANG (author) / PEI HAOTIAN (author) / YI FAN (author) / CHENG XUESONG (author) / GUO JINGZHUO (author) / MA QINGWEI (author) / LEE JONG-SOON (author)
2022-07-29
Patent
Electronic Resource
Chinese
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