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A platform for research: civil engineering, architecture and urbanism
Foundation pit excavation model test device for simulating coupling of equivalent rainfall and underground water
The invention relates to the technical field of geotechnical engineering experiment devices, in particular to a foundation pit excavation model test device for simulating coupling of equivalent rainfall and underground water, which comprises a detachable test box body, an underground water supply system, an equivalent rainfall device and a data acquisition system, the working conditions of the foundation pit construction site are restored through the equivalent rainfall device and the underground water supply system, and the mechanical behaviors of soil bodies around the foundation pit with different equivalent rainfall grades and different underground water level heights are quantitatively researched. The telescopic box body can simulate foundation pit physical model tests under different reduced scale conditions, and observation is carried out through visual characteristics; acquiring parameters such as pore water pressure, soil pressure, strain and water content through a data acquisition system; and an effective basis is provided for revealing a staged quantitative mechanical property change rule and a qualitative evolution mechanism of surrounding soil bodies in the foundation pit construction process under different rainfall intensity working conditions and underground water coupling conditions.
本发明涉及岩土工程实验装置技术领域，具体涉及一种模拟等效降雨与地下水耦合的基坑开挖模型试验装置，包括拆卸式试验箱体、地下水供给系统、等效降雨装置和数据采集系统；通过等效降雨装置和地下水供给系统还原基坑施工现场工况，定量研究不同等效降雨等级和不同地下水位高度的基坑周围土体的力学行为。可伸缩箱体可以模拟不同缩尺条件下的基坑物理模型试验，并通过可视化特性进行观察；通过数据采集系统采集孔隙水压力、土压力、应变和含水率等参数；为揭示不同雨强工况及地下水耦合条件下基坑施工过程中周围土体的阶段性定量力学性质变化规律和定性演化机理提供有效依据。
Foundation pit excavation model test device for simulating coupling of equivalent rainfall and underground water
The invention relates to the technical field of geotechnical engineering experiment devices, in particular to a foundation pit excavation model test device for simulating coupling of equivalent rainfall and underground water, which comprises a detachable test box body, an underground water supply system, an equivalent rainfall device and a data acquisition system, the working conditions of the foundation pit construction site are restored through the equivalent rainfall device and the underground water supply system, and the mechanical behaviors of soil bodies around the foundation pit with different equivalent rainfall grades and different underground water level heights are quantitatively researched. The telescopic box body can simulate foundation pit physical model tests under different reduced scale conditions, and observation is carried out through visual characteristics; acquiring parameters such as pore water pressure, soil pressure, strain and water content through a data acquisition system; and an effective basis is provided for revealing a staged quantitative mechanical property change rule and a qualitative evolution mechanism of surrounding soil bodies in the foundation pit construction process under different rainfall intensity working conditions and underground water coupling conditions.
本发明涉及岩土工程实验装置技术领域，具体涉及一种模拟等效降雨与地下水耦合的基坑开挖模型试验装置，包括拆卸式试验箱体、地下水供给系统、等效降雨装置和数据采集系统；通过等效降雨装置和地下水供给系统还原基坑施工现场工况，定量研究不同等效降雨等级和不同地下水位高度的基坑周围土体的力学行为。可伸缩箱体可以模拟不同缩尺条件下的基坑物理模型试验，并通过可视化特性进行观察；通过数据采集系统采集孔隙水压力、土压力、应变和含水率等参数；为揭示不同雨强工况及地下水耦合条件下基坑施工过程中周围土体的阶段性定量力学性质变化规律和定性演化机理提供有效依据。
Foundation pit excavation model test device for simulating coupling of equivalent rainfall and underground water
一种模拟等效降雨与地下水耦合的基坑开挖模型试验装置
GUO YANHUI (author) / LIU SHAOQIAN (author)
2022-11-01
Patent
Electronic Resource
Chinese
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