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Soil pressure testing device and testing method

A testing device and earth pressure technology, which is applied in the measurement device, the measurement force, the measurement of elastic deformation force through the measurement gauge, etc., can solve the problem that it is not suitable for measuring the earth pressure in the original soil.

Pending Publication Date: 2019-05-21
CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

[0004] In view of the above problems, the purpose of this invention is to provide a kind of earth pressure testing device and testing method, to solve the problem that the existing earth pressure cell is not suitable for measuring the earth pressure in the undisturbed soil

Method used

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  • Soil pressure testing device and testing method
  • Soil pressure testing device and testing method
  • Soil pressure testing device and testing method

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Embodiment Construction

[0025] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-Figure 4 Commonly shown, the earth pressure test device provided by the embodiment of the present invention includes: at least three test boards, U-shaped groove frames, V-shaped clips 4 and straight pipes 6 with the same number as the test boards, and each test board respectively includes a sliding plate and cover plate, figure 1 Three test boards are shown in the figure, and the following three test boards are used as an example for description. The three test boards are the first test board, the second test board and the third test board respectively. The first test board includes a first slide -1 and the first cover plate 2-1, the second test plate includes the second slide plate 1-2 and the second cover plate 2-2, the third test plate includes the third slide plate 1-3 and the third cover plate 2-3 , the thicknes...

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Abstract

The invention provides a soil pressure testing device and testing method. The device comprises test boards, U-shaped groove frames, a V-shaped clamp and a straight tube. The test boards include sliding plates and cover plates. Each cover plate includes two sub cover plates clamping the sliding plate; and grooves for insertion of the cover plates are formed in the U-shaped groove frames. The bottomend of the V-shaped clamp and the tops of all U-shaped groove frames are connected by bolts. The top end of the V-shaped clamp is welded with the straight tube; a separation board is fixed in the V-shaped clamp; inductor coils are fixed at positions, corresponding to all U-shaped groove frames, of the separation board; tension springs are respectively arranged in all inductor coils; the bottom ends of the tension springs are connected with the corresponding sliding plates by steel wire ropes respectively; the top end of each tension spring is respectively connected with a rope extending fromthe upper part of the straight tube; and all inductor coils are connected with an inductormeter by wires. Therefore, the device can be inserted into the soil deeply and directly from the surface of the soil without pre burying; and the soil pressure testing device and testing method are not only suitable for testing the soil pressure in the filling soil but also suitable for testing the soil pressure in the undisturbed soil.

Description

technical field [0001] The invention belongs to the technical field of earth pressure testing, and more particularly, relates to an earth pressure testing device and a testing method. Background technique [0002] In the design of slope support, landslide control, and foundation pit support, the most important thing is to reasonably determine the magnitude of the earth pressure at different depths. Although the classical soil mechanics theory provides a formula for calculating the earth pressure according to soil mechanics parameters, However, due to the applicability of mechanics theory and the heterogeneity and randomness of soil mechanics parameters, the calculated earth pressures often differ from the actual ones. It is more inclined to use the test site to test the value of the earth pressure. [0003] At present, the method of burying the earth pressure cell is mainly used to test the earth pressure on site. The currently used earth pressure cells are the resistance s...

Claims

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Application Information

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IPC IPC(8): G01L1/04G01L1/14
Inventor 许年春游磊许家琪皮海洋吴同情黄伟吴越赵宝云
Owner CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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