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Detachable type bit-expanded reinforced soil nail device and use method thereof

A technology of expanding the head and reinforcing soil, which is applied in the direction of construction, foundation structure engineering, sheet pile wall, etc., can solve the problems of insufficient anchoring force, etc., and achieve the effect of exerting the anchoring strength, increasing the reaction force of the soil layer, and increasing the frictional resistance

Pending Publication Date: 2018-05-29
SHANGHAI YUANFANG GROUNDWORK ENG +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The anchoring force of the soil nails in the prior art to the soil is insufficient, largely because of the insufficient frictional force. To increase the anchoring force of the soil nails, by increasing the frictional resistance of the soil and increasing the path of the frictional resistance, it can be achieved by Increase the end of the soil nail or the length of the soil nail to achieve, but there is no effective means in the prior art

Method used

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  • Detachable type bit-expanded reinforced soil nail device and use method thereof
  • Detachable type bit-expanded reinforced soil nail device and use method thereof

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings, but it does not represent that it is the only embodiment of the present invention.

[0013] As shown in the figure, a detachable enlarged head reinforced soil nail device includes at least one enlarged head reinforced soil nail. The enlarged head reinforced soil nail includes an enlarged head 1, a threaded sleeve 2 and a screw rod 3, and the enlarged head is fixed. In the middle of the screw rod, threaded connecting sections are provided at both ends of the screw rod, and adjacent soil nails are connected through threaded sleeves, which are used to lengthen the reinforced soil nails with enlarged heads or to set a plurality of continuous reinforced soil nails with enlarged heads, and it is characterized in that: The enlarging head 1 comprises a first connection plate 4, a second connection plate 5, at least one reverse bending stiffener 6 and at least one spring assembly ...

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Abstract

The invention discloses a detachable type bit-expanded reinforced soil nail device and a use method thereof. The detachable type bit-expanded reinforced soil nail device comprises at least one bit-expanded reinforced soil nail, the bit-expanded reinforced soil nail comprises an expanded bit, a thread casing pipe and a screw, the expanded bit is fixed in the middle of the screw, the two ends of thescrew are provided with thread connecting segments, adjacent soil nails are connected through the thread casing pipe, the bit-expanded reinforced soil nails are lengthened, or multiple continuous bit-expanded reinforced soil nails are arranged; the device has the beneficial effects that the device is simple in structure, safe in use and convenient to mount. Through the structure, the anchorage force of the soil nails can be ensured, through the external expansion manner of anti-bend reinforced bodies, multiple expanded bits can be formed, the contact area of the soil nail expanded bit and the soil can be greatly increased, frictional resistance is increased, due to the effect of the expanded bit, soil layer counterforce is increased, and the soil nail anchorage strength can be achieved to the maximum limit.

Description

technical field [0001] The invention relates to the technical field of bolt support with an enlarged head, in particular to a detachable enlarged head reinforced soil nailing device and a method for using the same. Background technique [0002] The anchoring force of the soil nails in the prior art to the soil is insufficient, largely because of the insufficient frictional force. To increase the anchoring force of the soil nails, by increasing the frictional resistance of the soil and increasing the path of the frictional resistance, it can be achieved by It can be realized by increasing the end of the soil nail or the length of the soil nail, but there is no effective means in the prior art. Contents of the invention [0003] The object of the present invention is to provide a detachable enlarged head reinforced soil nailing device, which has a simple and practical structure, is convenient for construction, and can meet the force requirements of the enlarged head of the s...

Claims

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Application Information

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IPC IPC(8): E02D5/74
CPCE02D5/74
Inventor 赵志孟郑伟锋尚朝宾宋肖兵
Owner SHANGHAI YUANFANG GROUNDWORK ENG
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