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A test model for slope stability with weak interlayers

A technology of stability test and weak interlayer, applied in measurement devices, instruments, scientific instruments, etc., can solve problems such as the inability to simulate the mechanical properties of the potential sliding surface of the slope from strong to weak, and the failure of geotechnical experiments to achieve the expected results. The effect of shortening the test period, safety and economical cost

Inactive Publication Date: 2016-05-11
WUHAN UNIV OF TECH
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Problems solved by technology

The above method determines the position of the sliding surface and the mechanical parameters of the sliding surface in advance, and then applies a large load to realize the sliding of the up and down slope body. This simulation method is quite different from the actual engineering, and cannot simulate the potential sliding surface mechanics of the slope. The dynamic process of properties changing from strong to weak makes related rock and soil experiments unable to achieve the expected results

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  • A test model for slope stability with weak interlayers
  • A test model for slope stability with weak interlayers
  • A test model for slope stability with weak interlayers

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Embodiment Construction

[0026] Such as figure 1 Shown embodiment of the present invention, it is the slope stability test model that is used for slope anchorage system design and carries out, and it comprises upper part rock mass 1, lower part rock mass 2 and weak interlayer 3; Lower part rock mass 2 is arranged on pad On the layer 8, the weak interlayer 3 is arranged between the upper rock mass 1 and the lower rock mass 2. The angle between the slope surface of the test slope and the horizontal plane is 60°, the thickness of the weak interlayer is 3cm, and the thickness of the cushion layer is 20cm. A total of two rows of anchor cables 10 are arranged on the slope, and seven anchor cables 10 are arranged in each row (the anchor cables are simulated by copper wires with a diameter of 4 mm). The anchor cable passes through the potential sliding zone for 10cm, that is, the length of the anchor section is 10cm, the vertical distance between each anchor cable is 12.5cm, and the horizontal distance betwe...

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Abstract

The invention relates to a model for testing the stability of a side slope comprising a weak intercalated layer. The model comprises an upper rock body, a lower rock body and a weak intercalated layer, wherein the weak intercalated layer is arranged between the upper rock body and the lower rock body; components of the material of the weak intercalated layer mainly comprises wax, and an electric heating device is arranged inside the weak intercalated layer. By adopting the model, the long-term slow worsening effect of factors such as rainfall and weathering on a potential slide surface of the side slope can be dynamically simulated in real engineering; moreover, the test period can be shortened, the worsening degree can be controlled, the model is safe, economical and the cost is low.

Description

technical field [0001] The invention relates to a slope stability test, in particular to a slope stability test model with a weak interlayer. Background technique [0002] In engineering practice, the long-term stability of slopes and reinforced slopes is an important factor affecting the safety of many major civil engineering projects. The design of engineering slopes and their reinforcements requires slope stability tests. At present, for the simulation of the weak interlayer in the model test of the influence of rainfall, weathering and other factors on the stability of the slope, it is generally statically filled with relevant proportioning materials (plastic materials) or setting contact surfaces such as tin sheets (hard materials). simulation. The above method determines the position of the sliding surface and the mechanical parameters of the sliding surface in advance, and then applies a large load to realize the sliding of the up and down slope body. This simulation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N17/00
Inventor 夏元友陈晨任俊杰赵亮阮创
Owner WUHAN UNIV OF TECH
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