Seawater intrusion simulation test sand box

Abstract

The invention discloses a seawater intrusion simulation test sand box, and belongs to the technical field of test simulation devices. A medium chamber for accommodating water-containing media such assand, soil and the like is arranged in the middle of the test sand box, a seawater chamber for accommodating dyed seawater and a fresh water chamber for accommodating deionized water are arranged in left and right ends of the test sand box respectively; a main body of the test sand box is made of acrylic plates; rubber layers which can be seamlessly overlapped and can be inserted into the box arearranged on two sections in the middle of the medium chamber; each of the seawater chamber and the fresh water chamber is divided into three rooms A,B and C; the seawater room C and the medium chamberin the middle of the test sand box are separated by a porous plate and a nylon net; a water tank and a recovery tank are arranged at each of the upper and lower ends of the seawater chamber and the fresh water chamber. By means of the seawater intrusion simulation test sand box, the water level can be controlled conveniently and flexibly, and the simulation length can also be changed convenientlyand flexibly, so, not only can the concentration and pressure at a given point be measured, but also to-be-measured sites can be determined more freely.

Description

technical field [0001] The invention belongs to the technical field of test simulation devices, and in particular relates to a seawater intrusion simulation test sand box. Background technique [0002] Seawater intrusion is an important problem facing the industrial and agricultural development of coastal cities. Due to unreasonable groundwater exploitation activities, the groundwater system in the local coastal aquifer is unbalanced, and environmental geological problems such as land subsidence, seawater intrusion, and groundwater pollution in the coastal zone occur. The key to the prevention and research of seawater intrusion is to understand the mechanism of seawater intrusion, so as to grasp the current situation of seawater intrusion and accurately predict the development trend of seawater intrusion. The research on seawater intrusion mainly adopts two methods of numerical simulation and physical simulation. [0003] At present, the sandbox simulation method is an impo...

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Problems solved by technology

[0003] At present, the sandbox simulation method is an important method to simulate seawater intrusion and study its mechanism, but the traditional sandbox has the following problems: the traditional sandbox does not have a relatively complete water level adjustment device; The length cannot be changed, and the flexibility is poor; the traditional sand box also has the problem that some test data are difficult to obtain during the test, etc.

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