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Ground intensity detector

A strength detection and ground technology, applied in the direction of applying stable tension/pressure to test the strength of materials, roads, road repairs, etc., can solve the problems that cannot truly reflect the bearing capacity and the ground strength cannot be accurately reflected

Inactive Publication Date: 2007-07-11
湖北泰和电气有限公司
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AI Technical Summary

Problems solved by technology

[0006] Using the above method, the measured ground strength is related to the length of the insertion rod. The measured ground strength is actually the strength of the soil layer with the same insertion depth as the insertion rod. It cannot accurately reflect the deeper ground strength and cannot truly reflect the weight of the heavy object. The bearing capacity of the ground while standing somewhere

Method used

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  • Ground intensity detector

Examples

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Embodiment Construction

[0012] as the picture shows. When the user detects the ground strength, the controller 10 starts the motor 7 to drive the hydraulic pump 6 to output hydraulic oil to flow through the check valve 5, the electromagnetic reversing valve 4, and the hydraulic control check valve 3 into the hydraulic cylinder 9, so that the hydraulic cylinder piston rod 8 Stretch down. The displacement sensor 2 fixed on the piston rod 8 of the hydraulic cylinder moves down and measures the displacement of the piston rod 8 of the hydraulic cylinder. After the flat circular hinged contact at the front end of the piston rod 8 of the hydraulic cylinder touches the ground, under the action of the reverse force on the ground, the oil pressure in the rodless chamber of the hydraulic cylinder 9 rises and acts on the ground through the hinged contact. The reverse force is less than the force that the contact acts on the ground, and the contact pushes the ground to sink. When the oil pressure of the hydraul...

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Abstract

The invention relates to a ground strength tester. It mainly solves the problem that the depth layer is not tested because of the lack of filling compaction as by testing the resistance generated when penetrating bar insert into ground prior ground strength tester tests the ground strength. In the invention, the piston of oil cylinder extends down by pressing the cavity without bar in oil cylinder. Flat round contact is set at the front end of piston of oil cylinder by ball joint and the contact pushes the ground down. The displacement sensor fixed on the piston of oil cylinder moves down to measure the displacement of ground settlement. By recording the pressure and the displacement the ground strength is tested.

Description

technical field [0001] The patent of the invention belongs to a strength detector, and relates to a ground strength detector, in particular to a detector that uses hydraulic pressure to measure the bearing value of the ground. Background technique [0002] According to statistics, more than 95% of the road surfaces of my country's expressways are asphalt concrete or modified asphalt concrete pavements. However, with the continuous increase of traffic volume, many expressway asphalt pavements show some early damage, such as cracking, subsidence, rutting and other phenomena. It affects the operation of the vehicle and increases the investment of maintenance management funds. The reasons for the summary analysis of the research team can be summarized as follows: ... (4) The influence of subgrade construction defects. According to the investigation materials, the early failure of some highways is related to the quality of roadbed construction, especially in soft soil areas. U...

Claims

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Application Information

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IPC IPC(8): E01C23/01G01N3/10
Inventor 董雪静李红艳王正虎郭建军武建立
Owner 湖北泰和电气有限公司
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