Testing device for simulating expansive soil slope crack development process under dry-wet cycle effect
A technology of dry-wet cycle and development process, applied in the field of geotechnical engineering, can solve problems such as difficult to reflect the impact of expansive soil slope erosion, and achieve the effect of ensuring effectiveness and reliability
Pending Publication Date: 2022-02-08
GUANGXI TRANSPORTATION SCI & TECH GRP CO LTD +1
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Problems solved by technology
[0005] The purpose of the present invention is to aim at the existing model device for simulating the dynamic characteristics of crack development of expansive soil slopes under the alternating action of dryness and wetness in the prior art, generally based on a centrifuge to carry out tests on small-scale expansive soil slope models , so it is difficult to reflect the impact of rainfall on expansive soil slope scour, and provide a test device for simulating the development of expansive soil slope cracks under the action of dry-wet cycles
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[0051] The present invention will be further described in detail below in conjunction with test examples and specific embodiments. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.
[0052] This embodiment provides a test device for simulating the crack development process of an expansive soil slope under the action of a dry-wet cycle.
[0053] Such as Figure 1 to Figure 9 As shown, the present embodiment comprises model box 2, dewatering device 3 and heating device 4;
[0054] Such as Image 6 As shown, there is an expansive soil slope 1 inside the model box 2, and both the top surface and the front surface of the model box 2 are provided with openings, and the expansive soil slope 1 is arranged opposite to the front of the model box 2. In this embodiment, t...
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The invention belongs to the technical field of geotechnical engineering, and particularly relates to a testing device for simulating the expansive soil slope crack development process under the dry-wet cycle effect. The device comprises a model box internally provided with an expansive soil slope, the top surface and the front surface of the model box are both open, and the expansive soil slope is arranged opposite to the front surface of the model box; and a drain hole is formed in the bottom of the model box, and a rainfall device for simulating natural rainfall and a heating device for simulating natural illumination are arranged above the expansive soil slope. According to the invention, the rainfall device is located above the expansive soil slope, and in the process of simulating natural rainfall, rainfall acts on the expansive soil slope from top to bottom; therefore, compared with a mode of carrying out a simulation test through a centrifugal machine, the test device for simulating the expansive soil slope crack development process under the dry-wet cycle action can test the scouring influence of rainfall on the expansive soil slope.
Description
technical field [0001] The invention belongs to the technical field of geotechnical engineering, in particular to a test device for simulating the crack development process of expansive soil slope under the action of dry-wet cycle. Background technique [0002] Expansive soil is widely distributed in my country, and it has typical expansion and contraction and cracks. Under the hot and rainy complex climate, the surface of expansive soil slope often produces a large-scale and well-developed crack network, which provides a natural preferential channel for the infiltration of water, which will accelerate the overall deterioration of the slope structure, and make Landslides, subsidence and other disasters will occur during the construction of highways and other transportation infrastructure. [0003] At present, the indoor scale model test can better solve the problem of instrument layout. Under the action of the environmental simulator, various complex natural environments ca...
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Login to View More IPC IPC(8): G01N33/24G01N25/00
CPCG01N33/24G01N25/00
Inventor 张红日杨济铭徐永福张二毛李红明罗吉智汪磊李春张红星罗世毅蓝天助
Owner GUANGXI TRANSPORTATION SCI & TECH GRP CO LTD