Sand cone method subgrade compaction degree detection rotary excavating and soil taking device

A soil borrowing device and a technology of compaction degree, applied in the field of road construction detection devices, can solve the problems of irregular shape of test sampling holes, high labor intensity of manual excavation, low work efficiency, etc.

Pending Publication Date: 2017-12-26
HEBEI ROAD & BRIDGE GROUP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Excavation of the test sampling hole can be carried out manually or by means of a hole-digging mechanical device. Manual excavation is labor-intensive and has low work efficiency. The shape of the test-sampling hole is irregular. The sample is difficult to collect completely, etc.

Method used

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  • Sand cone method subgrade compaction degree detection rotary excavating and soil taking device

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Embodiment Construction

[0014] The technical solution in this embodiment will be clearly and completely described below in conjunction with the accompanying drawings, and the embodiment is only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0015] Please refer to figure 1 As shown, the present invention provides a rotary digging soil extraction device for detecting the compactness of a sand filling method roadbed, comprising a device frame 1, a rotary drilling bit 2 installed at the bottom of the device frame, and a drill sleeve sleeved outside the rotary drilling bit 3 and the soil sample collection sleeve 4, the motor drive device 5 installed at the rear end of the rotary drilling bit, the operating handle 6 installed at the rear of the motor drive device; Above the sample collection sleeve, the ring hollow...

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Abstract

The invention provides a sand cone method subgrade compaction degree detection rotary excavating and soil taking device. The device comprises a device frame, a rotary excavating drill bit, a drill bit sleeve, a soil sample collecting sleeve, a motor driving device and an operation handle. The overall soil sample collecting sleeve is annular, the drill bit sleeve is located over the soil sample collecting sleeve, and an annular hollow part of the soil sample collecting sleeve communicates with the drill bit sleeve so that a hollow cylindrical cavity capable of allowing the rotary excavating drill bit to move up and down can be formed. The upper half portion of the inner wall of the soil sample collecting sleeve is in an open shape, and an opening serves as a soil throwing outlet. A sealing cover is arranged at the upper end of the drill bit sleeve. The bottom of the rotary excavating drill bit is provided with alloy tooth heads, and a spiral lifting sheet is arranged over the alloy tooth heads. The sand cone method subgrade compaction degree detection rotary excavating and soil taking device has the advantages of being simple in structure, high in excavating efficiency, capable of collecting all soil samples and convenient to use.

Description

technical field [0001] The invention relates to a road construction detection device, in particular to a rotary excavation soil extraction device for detecting the compactness degree of a roadbed by sand filling method. Background technique [0002] The quality of the road base has an important impact on the strength, stability, quality and service life of the entire pavement structure. Subgrade compaction detection is one of the most important detection indicators in road engineering quality management. The commonly used method for subgrade compaction testing is the sand filling method. Subgrade compaction testing requires digging a test sampling hole on the subgrade, and storing the subgrade soil material dug out of the test sampling hole as a sample. Excavation of the test sampling hole can be carried out manually or by means of a hole-digging mechanical device. Manual excavation is labor-intensive and has low work efficiency. The shape of the test-sampling hole is irreg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D1/04
CPCE02D1/04
Inventor 许英涛马洪忠王东兴杨丽萍张立肖贾东新王秀玲郜君晖张中元王伟刘鸿凌海滨王洪海王羡赵威静郝家伟高珊李冠儒王亚丽吴林学
Owner HEBEI ROAD & BRIDGE GROUP
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