Contact surface shear seepage test device and test method considering temperature effect

A temperature effect and test device technology, applied in the direction of applying stable shear force to test material strength, measuring device, soil material test, etc., can solve problems such as threats to engineering safety and great differences in physical and mechanical properties, and achieve flexibility Good, accurate and reasonable test results, good waterproof performance

Inactive Publication Date: 2020-11-06
HOHAI UNIV
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  • Application Information

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Problems solved by technology

Due to the great difference in physical and mechanical properties between the core wall clay and the upstream and downstream dam shell and bank slope bedrock, the contact parts are prone to large shear deformation under the action of self-weight and water load, and these contact

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  • Contact surface shear seepage test device and test method considering temperature effect
  • Contact surface shear seepage test device and test method considering temperature effect
  • Contact surface shear seepage test device and test method considering temperature effect

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Embodiment Construction

[0054] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0055] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "left side", "right side", "upper", "lower" are based on the orientations or positional relationships shown in the accompanying drawings, and are only For the purpose of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, "first", "second" and the like do not represent components importance, and therefore should not be construed as limiting the invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present in...

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Abstract

The invention discloses a contact surface shear seepage test device and test method considering a temperature effect. The contact surface shear seepage test device comprises an upper shearing box, a lower shearing box, a sealing system, a normal loading system, a horizontal loading system, a seepage water pressure system and a temperature control system. A concrete sample is placed in the lower shearing box and the lower shearing box slides in the X direction in a friction-free manner; a clay sample is placed in the upper shearing box; a sample contact surface is formed between the clay sampleand the concrete sample; the seepage water pressure system applies seepage water pressure in the Y direction to the sample sealing surface, and the seepage direction of the seepage water pressure ishorizontally orthogonal to the shearing direction of the shearing load; the temperature control system is used for controlling the temperature of the concrete sample. The three-field coupling effect of the stress field, the seepage field and the temperature field is considered at the same time, the state of the soil and concrete contact surface in actual engineering is truly simulated, and the device can be used for carrying out experimental study on the seepage characteristics of the soil and concrete contact surface under the action of different shear deformation and temperature changes.

Description

technical field [0001] The invention relates to the technical field of contact surface mechanics and permeability in geotechnical engineering, in particular to a contact surface shear seepage test device and test method considering temperature effect. Background technique [0002] Because of its strong anti-seepage ability and good ability to adapt to uneven deformation, clay is widely used as an anti-seepage material for the core wall of high earth-rock dams, and plays an important role in the two- to three-hundred-meter-level high earth-rock dams built in western my country. Due to the great difference in physical and mechanical properties between the core wall clay and the upstream and downstream dam shell and bank slope bedrock, the contact parts are prone to large shear deformation under the action of self-weight and water load, and these contact parts also have shear deformation. The interaction between deformation and seepage, and the shear deformation direction is cl...

Claims

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Application Information

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IPC IPC(8): G01N15/08G01N3/24G01N33/24
CPCG01N3/24G01N15/0826G01N33/24G01N2203/0025
Inventor 谈家诚马泽锴徐力群於孟元沈振中张开来杨超张文兵杨金孟
Owner HOHAI UNIV
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