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Rock-soil mechanics direct shear experimental system

An experimental system, a technology of geotechnical mechanics, applied in the field of shearing system and direct shearing experimental system, can solve the problems of unable to reflect the deformation process of rock and soil, unable to obtain shear strength, limited application, etc., to achieve a wide range of applications, deformation Uniform and high measurement accuracy

Inactive Publication Date: 2005-07-20
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The field test consumes a lot of manpower, money, and energy, and its application is limited. At present, the simple stress-controlled loading method is generally used in the in-situ shear test in China, which cannot reflect the complete deformation process of the rock and soil mass, and cannot get its residual shear strength

Method used

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  • Rock-soil mechanics direct shear experimental system
  • Rock-soil mechanics direct shear experimental system
  • Rock-soil mechanics direct shear experimental system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0077] 1. Outer frame a

[0078] As shown in Figure 2, the outer frame a consists of 16 pieces of 25 pieces of different lengths. # The I-beam and 2 square steels are combined. The ends of the I-beam and square steel are welded to the steel plates, and the steel plates are connected by bolts to form an integral detachable outer frame. The outer frame a is connected and fixed by bolts; it is convenient to disassemble, convenient for transportation and on-site installation.

[0079] 2. Horizontal loading system b

[0080] Inverter 1 selects model VS-606V7;

[0081] Variable frequency motor 2 selects model YVP100L-4;

[0082] Model RV130-100-F2-B7 is selected for single-stage turbine worm gearbox 3;

[0083] Model RV130-100-F2-B7 is selected for the two-stage turbine worm gearbox 4.

[0084] The speed of the frequency conversion motor 2 is adjusted by the frequency converter 1, and the horizontal force is applied by the frequency conversion motor 2 to drive the rotation shafts of the...

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Abstract

The invention discloses a straight cut testing system for rock and earth mechanics, relating to a cutting system. The invention is composed of outer frame, horizontal loading system, vertical loading system, cut box, and measuring system; the horizontal loading system, the vertical loading system, the cut box and the cut box are fixed on the outer frame, respectively; the horizontal loading system, the vertical loading system and the measuring system are connected with the cut box, respectively. The invention has high measuring accuracy and good stability; all the data are automatically collected, thus reducing artificial reading error; it adopts variable frequency electric motor so as to reduce the manufacturing cost on the premise of assuring a stable cutting speed; all the parts are removable, convenient to transport and install. It can be used in determining peak values and remaining shearing strength of fine earth, coarse earth and soft rock and provide strength parameter for engineering design and rock and earth stability.

Description

Technical field [0001] The invention relates to a shearing system, in particular to a direct shear test system in the field of rock and soil mechanics testing, which can be used to determine the peak and residual shear strength of fine-grained soil, coarse-grained soil and soft rock, and is an engineering Design and stability analysis of rock and soil provide strength parameters. Background technique [0002] Most of the damages of foundations and rock-soil buildings are shear failures. Therefore, accurate determination of the shear strength parameters of rock-soil masses is of great significance in geotechnical engineering construction. The instability and failure of geotechnical engineering is accompanied by the development of shear displacement. Therefore, in recent years, the method of testing the strength of rock and soil by applying shear force or shear displacement has received renewed attention all over the world. , The direct shear test is the most popular because of its...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/10G01N3/24G01N7/10
Inventor 闵弘魏进兵邓建辉刘小丽
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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