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Enlarged head non-metal anti-floating anchor rod rapid pull-out test device

An anti-floating anchor rod and pull-out test technology, which is applied in the direction of applying stable tension/pressure to test the strength of materials, can solve the problems of insufficient shear strength of the rod body, inability to realize rapid assembly, and limited test conditions, etc. Floatability, easy installation, good durability

Active Publication Date: 2018-01-23
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these existing pull-out test devices are limited to indoor pull-out test devices, which cannot be quickly assembled on site, and the test conditions are limited; at the same time, they cannot solve the problems caused by unreasonable anchorage settings during the anchor pull-out test. Insufficient shear strength of the rod body and optimization of the length of the anchor rod in the foundation, etc.

Method used

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  • Enlarged head non-metal anti-floating anchor rod rapid pull-out test device
  • Enlarged head non-metal anti-floating anchor rod rapid pull-out test device
  • Enlarged head non-metal anti-floating anchor rod rapid pull-out test device

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Embodiment

[0027] The main structure of this embodiment includes a non-metallic anti-floating anchor rod body 1, a fully threaded steel pipe inside the jacket 2, a wedge-shaped internal threaded steel clip 3, a split steel clamp 4, a hoop 5, a pressure sensor pad 6, a pressure sensor 7, Beam backing plate 8, loading beam 9, beam bench 10, jack 11, jack backing plate 12, automatic displacement acquisition meter 13, non-metal porous shaft expansion head 14, shaft expansion head tightening bolt 15, horn-shaped internal thread rod end Enlarging head 16, forming anchor hole 17; non-metallic anti-floating anchor rod body 1 is a glass fiber reinforced polymer (GFRP) fully threaded solid rod structure, which can enhance the gripping force between the anchor rod body and the anchor body; The inner diameter of the fully threaded steel pipe 2 is determined according to the diameter of the non-metallic anti-floating anchor rod body 1, and can be connected with the non-metallic anti-floating anchor ro...

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Abstract

The invention belongs to the technical field of ground foundation engineering equipment and relates to an enlarged head non-metal anti-floating anchor rod rapid pull-out test device. Multi-positioninganti-pull enlarged heads are arranged at the rod end and on the rod body of a non-metal anchor rod; after the rod body is put into a drill hole and grouted to form the anchor rod, the rapid pull-outtest device is used for performing anti-floating anchor rod anti-pull bearing capacity and deformation tests; the enlarged head non-metal anti-floating anchor rod rapid pull-out test device is convenient and rapid in construction, simple to mount, safe, reliable, high in operability, high in testing precision, not liable to damage, reusable, low in cost, high in anti-pull bearing capacity of the anchor rod and high in durability, and can effectively improve the anti-floating capability of the anchor rod.

Description

Technical field: [0001] The invention belongs to the technical field of foundation engineering equipment, and relates to a rapid pullout test device for a non-metallic anti-floating anchor rod with an expanding head. The anchor rod is arranged in the bottom and middle of the rock mass with multiple positioning expanding heads to improve the pullout bearing capacity. Optimizing the length of the anti-floating bolt anchor body; at the same time, the pull-out test device is improved to achieve rapid installation and strong operability. In addition, multiple test parts can be reused to reduce costs. Background technique: [0002] Anti-floating bolts made of metal materials, after being anchored in the rock and soil layer, are prone to suffer from Na + , Ga 2+ , Mg 2+ , Cl ˉ , SO 2- 4 The chemical corrosion of plasma seriously affects the load-bearing performance and durability of anti-floating anchor rods, and this effect is more serious in the application of anti-floating ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/10
Inventor 张明义白晓宇牟洋洋王永洪赵天杨陈小钰黄凯
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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