Improved soil mass combined consolidation permeameter

Abstract

The invention relates to an improved soil mass combined consolidation permeameter which comprises a loading system, an osmotic pressure loading system, a strain testing system and a control system connected with the osmotic pressure loading system and the strain testing system, wherein the loading system, the osmotic pressure loading system and the strain testing system are respectively connected with a soil sample (6). The soil sample (6) is placed in the loading system, the loading system compresses the soil sample (6) through an air pressure movement osmotic pressure container (11), so that the soil sample (6) is solidified; and the osmotic pressure loading system loads osmotic pressure for the soil sample (6). The strain testing system tests deformation data of the soil sample (6). The control system controls osmotic pressure and stores test data. Compared with the prior art, besides osmotic coefficient testing, the improved soil mass combined consolidation permeameter can be used for consolidation tests, osmotic consolidation combination influence tests and tests of simulating the influence of underground water pressure on consolidation, multiple applications of the permeameter are achieved, the shortcoming that a conventional osmotic pressure instrument cannot measure a high-density material is overcome, and the improved soil mass combined consolidation permeameter automatically stores data and is favorable for error analysis.

Description

technical field [0001] The invention relates to the field of civil engineering laboratory research, in particular to an improved combined soil consolidation penetrometer. Background technique [0002] Permeability is an important property in understanding soils. For excavation and drainage of foundation pits, the drainage equipment should be configured according to the permeability of the soil; when building earth-rock dams and slopes, the permeability of fillers should be considered; to calculate the land subsidence of the soil, the influence of permeability must be grasped. The permeability of the soil can also cause quicksand, piping and other phenomena, which can not be ignored for the protection of groundwater resources and the safety of the project. [0003] Therefore, in the process of modern civil engineering research, the permeability coefficient is tested as an important physical property parameter of soil materials. The traditional measurement methods of permeab...

AI Technical Summary

Problems solved by technology

However, this device only reads the axial deformation through the dial indicator, and uses a graduated cylinder to measure the seepage volume. The experimental accuracy is greatly affected by human subjective factors, and the degree of automation is low.

Functionally simple, it can only measure the permeability coefficient of soil under different consolidation pressures, and cannot be used to study the internal relationship between the two processes of consolidation and permeability

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