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Probe for testing lateral load of deep soil

A load test and deep soil technology, applied in the field of test probes, can solve problems such as unsatisfactory requirements, and achieve the effects of avoiding arch effects, reducing disturbance effects, and good repeatability

Active Publication Date: 2015-03-11
WENLING DIXIN INVESTIGATION INSTR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the lateral deformation of the flat shovel lateral expansion test can only measure two displacement values ​​of 0.05mm and 1.10mm, which are theoretically assumed to be the straight line section of the static load test, so the existing field test methods cannot meet the requirements

Method used

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  • Probe for testing lateral load of deep soil
  • Probe for testing lateral load of deep soil
  • Probe for testing lateral load of deep soil

Examples

Experimental program
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Effect test

Embodiment Construction

[0030] like Figure 1 to Figure 3 As shown, the deep soil lateral load test probe of the present invention includes a flat shovel probe 7, and the flat shovel probe 7 includes a flat plate, and one end of the flat plate is a handle;

[0031] The front of the flat shovel probe 7 is provided with a mounting hole, and a miniature rigid load plate 6 is arranged in the mounting hole;

[0032] The miniature rigid load plate 6 realizes the limit in the flat shovel probe 7 through the steel ring 4; the steel ring 4 is fixedly connected with the flat shovel probe 7 through the anchor screw 5; the outer side of the miniature rigid load plate 6 is provided with a sealing ring 9, and the sealing ring 9 can seal between the side of the miniature rigid load plate 6 and the flat shovel probe 7;

[0033] The miniature rigid load plate 6 is a disc with a cavity at the bottom, and the top outer ring of the miniature rigid load plate 6 is provided with grooves;

[0034] Steel ring 4 stretches ...

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Abstract

The invention discloses a probe for testing a lateral load of deep soil, which comprises a flat shovel probe. A micro rigid load bearing plate is arranged in the flat shovel probe; limitation of the micro rigid load bearing plate in the flat shovel probe is implemented by a steel ring; the micro rigid load bearing plate is connected with one end of a spring and the other end of the spring is connected with the flat shovel probe; a micro displacement sensor is fixedly arranged in the flat shovel probe; and the micro displacement sensor is used for continuously measuring the displacement of the micro rigid load bearing plate. The probe for testing the lateral load of the deep soil carries out field lateral load testing on the geotechnical engineering testing deep soil, can replace a conventional flat shovel lateral expansion test and is used for measuring a horizontal bearing force, a modulus of deformation, a static lateral pressure coefficient, a horizontal bedding coefficient and the like of the deep soil.

Description

technical field [0001] The invention relates to a test probe, in particular to a deep soil lateral load test probe. Background technique [0002] Parameters such as horizontal bearing capacity of deep soil, deformation modulus, static lateral pressure coefficient, and lateral subgrade coefficient are parameters that must be provided in tunnel and subway projects. Flat shovel lateral expansion test is an advanced in-situ testing method in geotechnical engineering. In the late 1970s, Italian Professor Marchetti first proposed the principle of the flat shovel lateral expansion test, and provided equipment, test methods, rock and soil parameter analysis and engineering applications. The flat shovel test has the characteristics of simple operation, good repeatability, high reliability and economy. In Western Europe and North America, the flat shovel lateral expansion test and the static penetration test have become the two most important means of in-situ testing. [0003] Howe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/00E02D1/00
Inventor 朱定华顾永远叶灵迪叶水青
Owner WENLING DIXIN INVESTIGATION INSTR
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