Multifunctional compression and consolidation instrument for municipal domestic waste soil and use method

Abstract

The invention discloses a multi-functional compression and consolidation instrument for urban garbage soil and a method for using it, which comprises: a garbage soil sample filling system, a constant temperature steam temperature control system, a pressurization system and a temperature displacement display system, and the constant temperature steam temperature control system can be used. Make the initial heating of the garbage soil sample uniform and reduce the self-weight of the equipment. In the present invention, the plexiglass tube is designed into a two-layer structure, which is a sample chamber and a temperature monitoring room from top to bottom; When the monitored temperature is consistent, the loading test can be carried out, which overcomes the disadvantage that the previous instrument cannot monitor whether the temperature of the sample in the cylinder is consistent with the temperature of the water outside the cylinder at the initial stage of loading.

Description

technical field [0001] The invention relates to a compression consolidation instrument, in particular to a multifunctional compression consolidation instrument for municipal domestic waste soil and a use method thereof. It belongs to the field of environmental protection technology. Background technique [0002] With the growth of my country's national economy and the increasing degree of urbanization, urban domestic waste has increased dramatically. At present, landfill is an effective way to solve domestic waste in most cities in my country. However, the pile of garbage in the municipal solid waste landfill is very high, as high as 100 meters, and the compressibility is relatively high. The settlement deformation of the landfill is too large, causing damage to the intermediate clay interlayer, covering layer and landfill foundation. At present, the secondary settlement caused by late degradation and the secondary landslide disaster caused by the increase of landfill heig...

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Problems solved by technology

[0003] At present, the municipal solid waste soil compression test still uses the traditional compression tester to carry out the compression test, but the traditional compression tester has the following shortcomings: ① The sample size of the traditional compression tester is small, and the garbage must be crushed to a very small size before it can be carried out Compression test cannot truly reflect the characteristics of high heterogeneity, large void ratio and high compressibility of garbage soil

②The displacement range of the traditional compression tester is too small, which cannot meet the high compressibility requirements of garbage soil

③ When applying multi-level loads, the operation is cumbersome and labor-intensive, and impact force is often generated when loading, which affects the test accuracy

④ Degradation-compression test cannot be carried out

[0004] In recent years, with the promulgation of technical regulations for geotechnical tests of municipal solid waste, some scholars have developed some municipal solid waste soil degradation-compression test instruments according to the technical regulations in the research of municipal solid waste soil to solve the shortcomings of traditional compres

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