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Anchor member for emergency spillway scour prevention material

A technology for anchoring components and spillways, which is applied in water conservancy projects, sea area engineering, coastline protection, etc., can solve the problems of reduced pull-out effect, achieve the effect of increasing pull-out resistance, large pull-out force, and improving operating efficiency

Active Publication Date: 2015-11-18
NANJING HYDRAULIC RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the existing anchoring components are in use, they often need longer rods and are buried deeper to anchor the soil and achieve the purpose of component pullout resistance. Because the main source of pullout resistance is the part buried in the soil Mutual friction between the member and the surrounding soil, when the member begins to loosen and pull out in the soil, its pull-out effect decreases as the member is pulled out

Method used

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  • Anchor member for emergency spillway scour prevention material
  • Anchor member for emergency spillway scour prevention material
  • Anchor member for emergency spillway scour prevention material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The anchor member used for the anti-scour material of the emergency spillway in this embodiment, such as figure 1 and figure 2 As shown, it includes a nail shank 1, a nail tip 2 arranged at one end of the nail shank and a nail head 3 arranged at the other end of the nail shank. At least one through hole 1-1 is formed in the middle of the nail shaft 1 . The through hole 1-1 is provided with a pair of V-shaped self-expanding thorns 4 hinged on the same axis 5, and the empty end 4-1 of the self-expanding thorns protrudes from the through hole 1-1.

[0034] When the anchoring member is nailed into the soil, a pair of self-expanding thorns 4 rotate towards each other and approach each other and the empty end 4-1 of the self-expanding thorn leans against the nail rod 1 obliquely; when the anchoring member is pulled up from the soil At this time, a pair of self-expanding thorns 4 counter-rotate away from each other and the empty end 4-1 of the self-expanding thorns leaves t...

Embodiment 2

[0044] The anchor member used for the anti-scour material of the emergency spillway in this embodiment is basically the same as that in Embodiment 1, as Figure 6 and Figure 7As shown, except that it is the same as the first embodiment, the difference is: a spring 7 is connected between a pair of self-expanding thorns 4, and a pair of self-expanding thorns is bound with a rope 8. When the rope 8 is tied tightly, a pair of self-expanding thorns 4 overcome the spring force and move closer to each other; when the rope 8 is untied, a pair of self-expanding thorns 4 are separated from each other under the action of the spring force.

[0045] During actual use, the anchoring member is knocked into the soil first, and when the empty end 4-1 of the self-expanding thorn of the anchoring member is about to be buried in the soil, the rope 8 is untied, and then the anchoring member is continued to be rammed into the soil to automatically The hollow end 4-1 of the expanded thorn does les...

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PUM

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Abstract

The invention relates to an anchoring member for anti-impact materials of emergency spillways, which belongs to the technical field of water conservancy projects. The anchoring member comprises a nail stem, a nail point and a nail head, the nail point is arranged on one end of the nail stem, the nail head is arranged on the other end of the nail stem, the middle of the nail stem is provided with at least one through hole, a pair of V-shaped self-spreading thorns are coaxially articulated in the through hole, and the free ends of the self-spreading thorns are extended out from the through hole; when the anchoring member is driven into a soil body, the pair of self-spreading thorns are oppositely turned to get close to each other, and moreover, the free ends of the self-spreading thorns obliquely and upwardly cling to the nail stem; when the anchoring member is pulled up from the soil body, the pair of self-spreading thorns are turned in opposite directions to get away from each other, and the free ends of the self-spreading thorns leave the nail stem, and are inserted into the soil body. The anchoring member has the advantages of short installation time and good anti-pulling effect in anchoring an anti-impact material of an emergency spillway.

Description

technical field [0001] The invention relates to a component for fixing spillway anti-scouring materials, which belongs to the technical field of water conservancy engineering. Background technique [0002] When the existing anchoring components are in use, they often need longer rods and are buried deeper to anchor the soil and achieve the purpose of component pullout resistance. Because the main source of pullout resistance is the part buried in the soil The mutual friction between the rod and the surrounding soil, when the component begins to loosen and pull out in the soil, its pull-out effect decreases as the component is pulled out. [0003] According to the applicant's understanding, when the anti-scour material of the emergency spillway is anchored, the installation time of the anchoring components is relatively high. When the emergency spillway is flooded, the water flow will generate a pull-up force on the anchoring components. Therefore, in order to quickly set up ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B8/06
Inventor 刘宁李云宣国祥曾晨军李传福王晓刚
Owner NANJING HYDRAULIC RES INST
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