Tester of on-site rheology of rock mass and its testing method

Abstract

The invention relates to a tester of on-site rheology of rock mass, which comprises a loading system and a measuring system. The loading system comprises an air pump (1), an air-liquid pump (2) and loading equipment (6), the measuring system comprises a pressure transducer (4), a displacement sensor (7) and a computer (8); the loading equipment (6) is arranged on a surface of a rock test piece (9), and connected with the air-liquid pump (2) through a hydraulic pipe, the displacement sensor (7) is arranged on the displacement monitoring point of the test piece (9), and connected with the computer (8) through data lines, the computer (8) is connected with the pressure transducer (4) though data lines. The tester of on-site rheology of rock mass of the invention overcomes the deficiencies of voltage stabilization performance, reliability and versatility of the present testing devices. The different types of the loading equipments with different quantities can be selected according to the requirements of sites, moreover, the present invention is free from the influence of surrounding environments; displacements and pressure data can be automatically collected by using a computer automatic collecting system.

Description

technical field [0001] The invention relates to a test device for testing the rheological properties of rock mass on site, more specifically, it is an on-site rock mass rheological tester, and also relates to a test method using the rock mass rheological tester. It is suitable for on-site rock mass load rheological test, shear rheological test and triaxial rheological test, and belongs to the technical field of rock mass mechanics test. Background technique [0002] Compared with the indoor rock rheological test, the on-site rock rheological test has the following characteristics: (1) The size of the specimen is large, so the loading equipment exerts a lot of effort; (2) The test environment is humid; (3) The test site is not fixed. At present, the constant load method suitable for indoor rock rheological tests has disadvantages when it is applied to on-site rock rheological tests: the output of the ball screw and weight counterweight voltage stabilization methods is too sma...

AI Technical Summary

Problems solved by technology

At present, the constant load method suitable for indoor rock rheological tests has disadvantages when it is applied to on-site rock rheological tests: the output of the ball screw and weight counterweight voltage stabilization methods is too small; the motor servo and digital servo voltage stabilization methods It is easily affected by humid environment and has poor reliability; a rock mass project often requires different types of on-site rheological tests, and the existing test instruments have poor versatility

There are also deficiencies in accumulators and hydraulic pressure stabilization methods: accumulators store pressurized gas or liquid in larger containers to supplement pressure loss. When the deformation of the test piece is large, its pressure compensation capability cannot meet the requirements; The hydraulic pressure stabilization method has heavy equipment, complex hydraulic system, poor operability and reliability

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