Simulator for blocking groundwater seepage by underground structure

Abstract

The invention discloses a simulator for blocking groundwater seepage by an underground structure, belonging to the technical field of building engineering, and comprising a water tank, a model box, baffles, a phreatic aquifer, an aquiclude, a confined aquifer, a displacement meter and a water level observation pipe, wherein the water tank is connected with a model box, the model box is internally and vertically provided with a plurality of baffles, the phreatic aquifer, the aquiclude and the confined aquifer are sequentially and horizontally paved in the model box from the top down, the displacement meter is vertically installed on the surface of the phreatic aquifer, and the water level observation pipe is vertically embedded in the confined aquifer of the model box and sequentially perforates the phreatic aquifer and the aquiclude. By adopting the invention, groundwater three-dimensional seepage and soil mass deformation condition of the soil mass having the underground structure at each moment can be conveniently and efficiently observed, and real, exact and efficient parameters are provided for the design and the construction by analyzing test results, such as water head change, the ground subsidence distribution and the like, thereby the high efficiency and the safety of an urban underground engineering construction can be ensured.

Description

technical field [0001] The invention relates to a device in the technical field of building construction, in particular to a simulation device for blocking underground water seepage by underground structures. Background technique [0002] With large-scale urban construction, the number of underground structures has gradually increased. As a part of urban resources, underground space has been paid more and more attention, and various underground buildings such as basements, underground railways, and underground shopping malls have appeared in cities. At the same time, the development of the above-ground space has produced many underground structures such as underground diaphragm walls, caissons, and pile foundations. The presence of subsurface structures alters the geological environment, and some changes are permanent and difficult to recover. Underground structures hinder the flow of groundwater and cause land subsidence in varying degrees. When an underground structure ...

AI Technical Summary

Problems solved by technology

It can simulate the seepage field, stress field and deformation field of foundation pit engineering, reproduce the seepage damage of foundation pit engineering, and overcome the defect that the existing soil seepage damage test device can only reflect one-dimensional seepage

However, this device is limited to seepage damage in foundation pits with underground diaphragm walls, and cannot simulate the impact of underground structures on the surrounding environment and the ground subsidence caused by the existence of underground structures without damage, that is, it cannot simulate piles, subways, The impact of underground structures such as underground pipelines on groundwater seepage and land subsidence, especially the impact of underground structures on confined water seepage and the resulting land subsidence

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