Dike foundation seepage deformation device under vertical load effect

Abstract

The invention belongs to the technical field of embankment engineering and flood control and fighting, and particularly relates to an embankment foundation seepage deformation device under the action of vertical load, which comprises a model tank, a loading plate, a water head control box and a plastic seepage-proofing composite vertical plate, deformation of the model tank under the condition of overhigh water pressure can be effectively prevented; during loading, the two guide column bases on the loading plate are matched with the supporting columns to transmit loads, so that the loads are more uniformly loaded to the embankment foundation, and the situation that a soil body deforms due to the fact that the load at a certain position is too large is prevented; the model groove is divided into three areas by the sand partition plates, the pressure bearing area enables water pressure to uniformly act on the embankment foundation, the sand groove area is used for placing an embankment foundation model, the water leveling area is used for collecting seepage water discharged by the embankment foundation, the sand partition plates enable an embankment foundation material not to penetrate into other areas, and the plastic anti-seepage composite vertical plates simulate an anti-seepage structure in the embankment foundation. Through the setting, the test is closer to the real situation, and the obtained data is more real and effective.

Description

technical field [0001] The invention belongs to the technical fields of embankment engineering and flood control and flood resistance, and in particular relates to a seepage deformation device for embankment foundations under the action of vertical loads. Background technique [0002] my country has a vast territory and has a large number of rivers and lakes. Due to the complex and diverse natural and geographical factors, there have always been a large number of flood disasters, which have brought serious threats to the lives and properties of the people and are not conducive to social and economic development. Since liberation, after years of hard work and governance, my country has initially completed seven major river flood control projects, including the Yangtze River and the Yellow River, which has guaranteed social stability to a certain extent. According to the long-term flood control practice, the length of the dykes currently built in my country is 430,000 km. Due...

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Problems solved by technology

[0003] Embankment projects are all located along river banks, and there will be thick sand layers in embankment foundations, which will often cause seepage, which will bring great difficulties to the treatment work. In general, when embankments are constructed, soil is taken from the nearest place, and the quality of embankments cannot be guaranteed. There are a large number of ditches and ponds behind the embankment, and the seepage field of the embankment foundation is a three-dimensional seepage problem, so appropriate methods should be used when conducting research

[0004] In the actual construction process, it is often the combined action of various factors that leads to the phenomenon of seepage damage. The situation is very complicated and random, and it is difficult to solve the problem only by theoretical research. The combination of experiment and theoretical research is used to solve the problem. Based on this, it is necessary to study a device for seepage deformation of embankment under vertical load

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