Structural plane controlled side slope wedge block unstable sliding physical model test platform and use method thereof

A technology of physical model and test platform, applied in the field of geotechnical engineering, to achieve the effect of low manufacturing difficulty, simple structure and simple test operation process

Active Publication Date: 2018-12-07
CHONGQING JIAOTONG UNIVERSITY
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a structural surface control slope wedge block insta

Method used

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  • Structural plane controlled side slope wedge block unstable sliding physical model test platform and use method thereof
  • Structural plane controlled side slope wedge block unstable sliding physical model test platform and use method thereof
  • Structural plane controlled side slope wedge block unstable sliding physical model test platform and use method thereof

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Embodiment 1

[0036] see figure 1 , the wedge-shaped body is formed by cutting the rock mass with two structural planes, and the intersection line of the two structural planes is the structural plane intersection line. The slip direction occurs along both faces. There are differences in the occurrence and shear strength parameters of the two sliding surfaces, and the anti-sliding effects on the wedge are also different. Therefore, this embodiment aims at the technical deficiencies in the current physical simulation process of wedge-shaped block instability and deformation of rock slopes, and discloses a structural surface control slope wedge-shaped block instability and sliding physical model test platform, which can simulate different spaces of wedge-shaped blocks Unstable sliding process of wedge-shaped block under the condition of position and interlayer of structural plane with different thickness and mechanical characteristics of materials.

[0037] see figure 2 , the physical mode...

Embodiment 2

[0043] This embodiment also discloses a method for using the physical model test platform for controlling the instability and sliding of the slope wedge-shaped block described in Embodiment 1, including the following steps:

[0044] 1) see Figure 5 , choose barite powder, quartz sand, gypsum and water according to the mass ratio of 66:10:10:14 to make wedge-shaped block samples.

[0045] 2) Keep the test platform level by adjusting the feet 702 .

[0046] 3) Adjust the inclination angle of the tilt table 2 to 0°, adjust the angle of the wing plate 1 and the inclination angle of the structural panel 101 to the angle required for the test and fix them.

[0047] 4) In this embodiment, mixed sand, clay, and talcum powder are selected as similar materials for the weak interlayer, and are prepared according to the mass ratio of 10:7:3 (c=1.69kPa, φ=18.7°), and according to the dry density of 1.9g / cm 3 Lay it evenly and flatly on the two structural panels 101 with a thickness of...

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Abstract

The invention provides a structural plane controlled side slope wedge block unstable sliding physical model test platform and a use method thereof. The test platform consists of wing plates, an inclined platform, an inclined platform ejector rod, a base plate and a rotating shaft. The base plate and the inclined platform are both in a plate structure overall. A screw rod is arranged on the upper surface of the base plate. During work, the screw rod is driven to put the inclined platform ejector rod into motion, thus realizing the function of adjusting the inclination angle of the inclined platform. The use method of the test platform includes: adjusting the rotation angle of the wing plate and the inclination angle of the structural panels, laying a structural plane sandwich similar material, placing a prefabricated wedge-shaped test block, performing testing and other steps. By adjusting the inclination angle of the inclined platform, the rotation angle of the wing plates and the inclination angle of the two wing plates, the test platform can accurately simulate the unstable sliding process of the wedge-shaped block under any spatial position condition, and can be applicable to extensive working conditions. The test platform has the advantages of simple structure, low fabrication difficulty and simple test operation process, and is suitable for promotion and use.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to an unstable sliding physical model test platform. Background technique [0002] The stability of high rock slopes involves the construction and safety of a series of major projects such as water conservancy and transportation. It has attracted the attention of construction-related units and researchers. It is a research hotspot in my country's engineering geology, geotechnical engineering, highway engineering and other related fields. one of the subjects. The common failure of rock mass in slope engineering is often manifested as the instability and failure of the structure cut by the structural plane. In the stability analysis of rock mass, it is an important content in the stability evaluation of rock mass to study the combination characteristics of structural planes and analyze the shape, scale and deformation characteristics of potential movable blocks of slo...

Claims

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Application Information

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IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 赵天龙李玉桥王俊杰刘云飞付长静
Owner CHONGQING JIAOTONG UNIVERSITY
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