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A platform for research: civil engineering, architecture and urbanism
Arc-shaped foundation pit construction simulation test device and simulation test method thereof
The invention relates to an arc-shaped foundation pit construction simulation test device and a simulation test method thereof, and belongs to the technical field of foundation structure tests. The device comprises a model box and a retaining structure arranged in the model box, the supporting and retaining structure comprises a soil retaining component, a supporting rod and a counter-force beam; the soil retaining component is formed by splicing a plurality of soil retaining plates into an arc shape and is mounted between the two vertical brackets to divide the model box into an arc-shaped cavity in a pit and an arc-shaped cavity outside the pit; a horizontal displacement measurer is further arranged between the two vertical guide rails and comprises a distance measuring rail, a distance measuring hanging bracket and a laser displacement sensor. When the device is used in a simulation test, horizontal displacement of the arc-shaped soil retaining plate caused by pressure at each point in the cross section of the model box can be accurately measured in real time in the model box, and displacement of the arc-shaped soil retaining plate caused by stress in a larger space in the model box can be obtained by adjusting the position up and down in the longitudinal section of the model box; therefore, the working states of arc-shaped foundation pit supporting systems with different curvatures in construction can be simulated.
本发明涉及一种弧形基坑施工模拟试验装置及其模拟试验方法，属于基础结构的试验技术领域。该装置包括模型箱和设于模型箱内的支挡结构；支挡结构包括挡土构件、支撑杆和反力梁，挡土构件由多块挡土板拼接成弧形并安装在两条竖向牛腿之间将模型箱分隔成两个弧形的坑内腔室和坑外腔室；在两条竖向导轨之间还设有水平位移测量器，水平位移测量器包括测距轨、测距吊架和激光位移传感器。该装置在模拟试验时，可以在模型箱实时精准地测量弧形挡土板在模型箱横截面内各点受压产生水平位移，再通过模型箱纵截面内上下调整位置，得到模型箱内更大体积空间内弧形挡土板受力产生位移，从而可以模拟不同曲率弧形基坑支护体系在施工中的工作状态。
Arc-shaped foundation pit construction simulation test device and simulation test method thereof
The invention relates to an arc-shaped foundation pit construction simulation test device and a simulation test method thereof, and belongs to the technical field of foundation structure tests. The device comprises a model box and a retaining structure arranged in the model box, the supporting and retaining structure comprises a soil retaining component, a supporting rod and a counter-force beam; the soil retaining component is formed by splicing a plurality of soil retaining plates into an arc shape and is mounted between the two vertical brackets to divide the model box into an arc-shaped cavity in a pit and an arc-shaped cavity outside the pit; a horizontal displacement measurer is further arranged between the two vertical guide rails and comprises a distance measuring rail, a distance measuring hanging bracket and a laser displacement sensor. When the device is used in a simulation test, horizontal displacement of the arc-shaped soil retaining plate caused by pressure at each point in the cross section of the model box can be accurately measured in real time in the model box, and displacement of the arc-shaped soil retaining plate caused by stress in a larger space in the model box can be obtained by adjusting the position up and down in the longitudinal section of the model box; therefore, the working states of arc-shaped foundation pit supporting systems with different curvatures in construction can be simulated.
本发明涉及一种弧形基坑施工模拟试验装置及其模拟试验方法，属于基础结构的试验技术领域。该装置包括模型箱和设于模型箱内的支挡结构；支挡结构包括挡土构件、支撑杆和反力梁，挡土构件由多块挡土板拼接成弧形并安装在两条竖向牛腿之间将模型箱分隔成两个弧形的坑内腔室和坑外腔室；在两条竖向导轨之间还设有水平位移测量器，水平位移测量器包括测距轨、测距吊架和激光位移传感器。该装置在模拟试验时，可以在模型箱实时精准地测量弧形挡土板在模型箱横截面内各点受压产生水平位移，再通过模型箱纵截面内上下调整位置，得到模型箱内更大体积空间内弧形挡土板受力产生位移，从而可以模拟不同曲率弧形基坑支护体系在施工中的工作状态。
Arc-shaped foundation pit construction simulation test device and simulation test method thereof
弧形基坑施工模拟试验装置及其模拟试验方法
MA HONGWEI (author) / WANG SHENGTAO (author) / PENG BO (author) / LIU WENSHENG (author) / PENG JIANYONG (author) / WANG BING (author) / WU YALEI (author) / CHEN XIN (author) / GU XIAO (author) / LIU RONGKANG (author)
2024-08-09
Patent
Electronic Resource
Chinese
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