An Improved Soil Combined Consolidation Permeameter

Abstract

The invention relates to an improved combined soil consolidation penetrometer, comprising a loading system connected to soil samples (6), an osmotic pressure loading system, a strain testing system and a control connected to the osmotic pressure loading system and the strain testing system system, the soil sample (6) is placed in the loading system, and the loading system compresses the soil sample (6) by moving the osmotic pressure container (11) through air pressure, so that the soil sample (6) is consolidated, and the osmotic pressure The loading system loads osmotic pressure on the soil sample (6), the strain testing system tests the deformation data of the soil sample (6), and the control system controls the osmotic pressure and stores test data. Compared with the prior art, in addition to the determination of the permeability coefficient, the present invention can also conduct experiments such as consolidation test, combined influence of seepage and consolidation, and simulation of the influence of groundwater pressure on consolidation. It is impossible to measure the deficiency of high-density materials, and the data is automatically stored, which is conducive to 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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