Preparation device and application method of triaxial test sample provided with structure in contact with soil

A technology of triaxial sample and preparation device, which is applied in the preparation of test samples and other directions, can solve problems such as affecting work efficiency, dam breaking, and soil cannot be compacted uniformly and effectively, and achieves the goal of ensuring preparation quality and improving work efficiency. Effect

Active Publication Date: 2012-07-25
HOHAI UNIV
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Problems solved by technology

[0002] With the in-depth development of water conservancy and hydropower projects in Southwest my country, more 200-300-level high earth-rock dams are being built. For such high earth-rock dams, the contact surface between soil and structures is usually the weakest position in the dam, such as Improper design often leads to dam failure, causing serious flood disasters and heavy economic losses in downstream cities
Carrying out the triaxial test of the soil-structure contact surface is an important means to study the mechanical properties and impermeability characteristics of the soil-structure contact surface, and to evaluate whe

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  • Preparation device and application method of triaxial test sample provided with structure in contact with soil
  • Preparation device and application method of triaxial test sample provided with structure in contact with soil
  • Preparation device and application method of triaxial test sample provided with structure in contact with soil

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Embodiment Construction

[0013] The technical solutions of the present invention will be described in detail below, but the protection scope of the present invention is not limited to the embodiments.

[0014] Such as figure 1 and 2 As shown, a soil-structure contact triaxial sample preparation device includes a sample base 1, a structure to be simulated 3, a rubber membrane, a split mold and a steel cylinder 2 with the same diameter as the triaxial sample One end of the steel cylinder 2 has a narrow groove 4 completely consistent with the width and height of the structure 3 to be simulated.

[0015] The specific steps of using the preparation device are as follows: (1) Install the sample base 1, the rubber film and the split mold, hoop one end of the rubber film on the sample base 1, and install the rubber film outside the rubber film. The split mold is described, and the split mold is tightened to form a compacting cylinder, the rubber film is arranged to be smooth, and the other end of the rubber...

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Abstract

The invention discloses a preparation device of a triaxial test sample provided with a structure in contact with soil. The preparation device comprises a test sample base, a rubber diaphragm, a split die and a cylinder, wherein the diameter of the cylinder is the same as that of the triaxial test sample, a narrow groove is formed at one end of the cylinder, and width and height of the narrow groove are completely consistent with those of the structure to be simulated. According to the invention, soil body nearby the contact surface is uniformly compacted, and the rubber diaphragm can be effectively prevented from being damaged during the preparation of the test sample, so that preparation quality of the test sample is ensured, and working efficiency is obviously increased.

Description

technical field [0001] The invention relates to a sample preparation device for triaxial test of contact between soil and structure and its application method. Background technique [0002] With the in-depth development of water conservancy and hydropower projects in Southwest my country, more 200-300-level high earth-rock dams are being built. For such high earth-rock dams, the contact surface between soil and structures is usually the weakest position in the dam, such as Improper design often leads to dam failure, causing serious flood disasters and heavy economic losses to downstream cities. Carrying out the triaxial test of the soil-structure contact surface is an important means to study the mechanical properties and impermeability characteristics of the soil-structure contact surface, and to evaluate whether the design is safe or not, and the preparation of soil-structure contact triaxial samples that meet the test requirements is an important method. The basis for ob...

Claims

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Application Information

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IPC IPC(8): G01N1/28
Inventor 罗玉龙吴强盛金昌詹美礼谯亮金袭李想
Owner HOHAI UNIV
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