Drainage board flow test equipment and its test method considering board-soil interaction

Abstract

The invention discloses test equipment for the discharge capacity of a drain board with board-soil interaction considered and a test method thereof. A board-soil unit body covered with a latex film is arranged inside a pressure chamber, and a water circulation outlet in the upper part of the pressure chamber is connected to a water volume measurer; a water circulation inlet in the lower part of the pressure chamber is connected to a fixed water head for inputting water; the upper part of the pressure chamber is connected to a water outlet end pressure measurement pipe, and the lower part of the pressure chamber is connected to a water inlet end pressure measurement pipe; an upper lateral pressure output pipe and a lower lateral pressure output pipe are externally connected to the pressure chamber. The test equipment and the test method are characterized in that a soil body is arranged between the latex film and the drain board and is a sludge layer; test pressure directly acts on the latex film through the pressure chamber and then acts on the drain board through the transmission effect of the soil body. According to the test equipment and the test method, the shortcomings of the prior art are overcome, the test results meet the practical conditions of projects better, the operability is higher, automatic tests can be realized, reliable basic data are provided for model selection of the drain board in the process of treating soft foundation projects through the drainage concretion method by the test results, and the limitation that the model of the drain board is uniformly selected according to the board insertion depth in existing design work of the drainage concretion method is broken through.

Description

technical field [0001] The invention belongs to the technical field of soft soil foundation treatment in geotechnical engineering, and specifically relates to a new type of equipment and a complete set of technology for measuring the longitudinal water flow of drainage boards, and improves the current conventional drainage board vertical water flow testing technology that does not consider plate-soil interaction and other technologies. Defects, the plate-soil unit body can be made indoors by vacuum preloading model test, surcharge preloading model test or direct filling of silt, and the plate-soil interaction can be considered by testing the vertical water flow of the plate-soil unit body The purpose of testing the longitudinal water flow of the drainage board is that this technology solves the key technical problems that the current test method of the vertical water flow of the drainage board does not consider the interaction between the board and the soil, and the test result...

AI Technical Summary

Problems solved by technology

The above problem is because the conventional flow rate test method in the prior art does not consider the plate-soil interaction

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