Simulated test unit and method for slope stability with faulting

A technology for simulating test and slope body, which is applied in the field of devices for controlling different movement modes of faults, and the field of slope body stability simulation test devices, to achieve the effects of shortening the test time, simple structure and improving the speed of the test.

Inactive Publication Date: 2012-01-18
INST OF GEOMECHANICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] After searching, there is no mature and accurate simulation test ...

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  • Simulated test unit and method for slope stability with faulting
  • Simulated test unit and method for slope stability with faulting
  • Simulated test unit and method for slope stability with faulting

Examples

Experimental program
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Effect test

Embodiment 1

[0048] One, embodiment 1: test device

[0049] 1. Overall

[0050] Such as figure 1 , 2 , the test device includes a soil sample 00, a fault soil model instrument 10, a fault plane 20, a continuously variable transmission 30, a power transmission system 40, a support lever 50, an earth pressure cell 60, a real-time monitor 70, a data acquisition system 80 and dial gauge 90;

[0051] The soil sample 00 in the fault soil model instrument 10 is divided into two parts, the fault hanging wall 21 and the fault foot wall 22, through the fault surface 20;

[0052] The first continuously variable transmission 31, the first power transmission system 41, the support lever 50 and the fault upper plate 21 are sequentially connected to provide displacement power for the fault upper plate 21; the second continuously variable transmission 32, the second power transmission system 42 It is sequentially connected with the fault footwall 22 to provide displacement power for the fault footwal...

Embodiment 2

[0082] Two, embodiment 2: test method

[0083] In step ①

[0084] The height of the fault hanging wall is 0.80m, the slope bottom of the fault footwall is 0.60m away from the bottom of the model, the fault angle is 75°, and the thickness is 0.03m. The coefficient of friction is 0.5.

[0085] In step ④

[0086] Adjust the support lever 50 so that the direction of the transmission force of the first power transmission system 41 is consistent with the fault angle, that is, 75°;

[0087] Power is applied, and the data acquisition device is turned on at the same time. According to the movement mode of the fault, relevant settings are made to the parameters in the control panel of the first continuously variable transmission 31, so that the fault hanging wall 21 moves along the fault plane 20 at a speed of 0.2 cm / s. Speed ​​up movement.

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Abstract

The invention discloses a simulated test unit and method for slope stability with faulting, relating to the technique of rock-soil mechanical test. The test unit is characterized in that: a soil sample in a fault soil model instrument is divided into hanging wall and footwall by the fault surface; a first continuously variable transmission (CVT), a first power transmission system, and a supporting leverage are connected with the hanging wall successively and provide power for displacement to the hanging wall; a second CVT and a second power transmission system are connected with the footwall successively and provide power for displacement to the footwall; a displacement mark, a soil pressure box and a dial indicator are put in the soil sample, and the relative data are recorded. Accordingto the invention, the movement processes of transformation and damage of slope containing fault soil are represented accurately, so that the invention provides a new approach for studying formation mechanism of landslip and other geological disasters under complex geological environmental conditions.

Description

[0001] technical field [0002] The invention relates to rock-soil mechanics test technology, in particular to a slope body stability simulation test device and method thereof under the action of a fault. Specifically, the present invention relates to a method for preparing a slope body model under the action of a fault, and also relates to a device for controlling different movement modes of a fault, which can simulate normal fault movement, reverse fault movement and strike The simulation test and analysis of the stability of the slope body are carried out under different modes and working conditions such as sliding fault movement. Background technique [0003] The deformation and failure of the slope are essentially determined by the development and evolution of the contradiction between stress and strength in the rock and soil body of the slope. In general, the stress distribution characteristics in the slope determine the form and mechanism of slope deformation and failu...

Claims

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Application Information

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IPC IPC(8): G01N3/08G01N1/28
Inventor 郭长宝张永双熊探宇
Owner INST OF GEOMECHANICS
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