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Olive-shaped anti-slip key grouted anchoring supporting blasting anchor rod

An anti-skid key and olive-shaped technology, which is applied in the field of rock and soil slope reinforcement and support, can solve the problems of long time consumption, unsatisfactory slope reinforcement effect, and large engineering volume.

Inactive Publication Date: 2014-05-07
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing prevention and control methods and technologies all have problems such as large disturbance to the rock and soil mass of the slope, large amount of engineering, long time consumption, high cost, limited anti-sliding force that can be provided, and unsatisfactory reinforcement effect, etc.
Among them, anchoring is one of the main technical measures commonly used in landslide prevention and control engineering on slopes with clear and weak sliding structures. It tightly interlocks the strata through anchor rods buried in the stratum; The root of the anchoring method is to provide anchoring force, which indirectly provides anti-sliding force to the slope through the anchoring force of the anchor rod, and the anchoring force that can be provided is limited, so the reinforcement effect on the slope is not ideal.
At the same time, the rock and soil side slope landslide prevention project is also affected by stratum lithology, rock and soil structure, geological structure, hydrogeology, etc., and may be affected by strong earthquakes, which poses a threat to project safety

Method used

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  • Olive-shaped anti-slip key grouted anchoring supporting blasting anchor rod
  • Olive-shaped anti-slip key grouted anchoring supporting blasting anchor rod
  • Olive-shaped anti-slip key grouted anchoring supporting blasting anchor rod

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Embodiment Construction

[0016] Such as Figure 1~4 As shown, the olive-shaped anti-skid key is grouted to anchor and support the blasting bolt, which includes a bolt body 4, a pad 6, a backing plate 7, and a nut 8. Both the base 6 and the backing plate 7 are provided with bolt holes; the top of the anchor rod body 4 passes through the anchor holes of the pad 6 and the backing plate 7 in turn and is connected with the nut 8; the anchor rod body 4 corresponds to the rock and soil The position of the weak sliding structure surface 5 of the side slope of the body 1 is provided with a cylindrical protective cover 17 within the range of 0.5m~1.5m from the top to the bottom, and a cylindrical blasting tube equipped with a detonator 10 is provided outside the cylindrical protective cover 17. Charge 12; Detonator 10 is connected with detonator leg line 11.

[0017] Wherein: the top of the anchor rod body 4 is provided with threads.

[0018] When in use, (1) according to the design requirements, drill holes ...

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Abstract

The invention relates to an olive-shaped anti-slip key grouted anchoring supporting blasting anchor rod which comprises an anchor rod body, a pad seat, an inserted plate and a nut. The pad seat and the inserted plate are respectively provided with an anchor rod hole; the top of the anchor rod body sequentially penetrates through the anchor rod hole in the pad seat and the anchor rod hole in the inserted plate and is connected with the nut; the positions, corresponding to a rock and earth mass slope weak slip structure face, of the anchor rod body and the range 0.5 m-1.5 m away from the top and the bottom of the anchor rod body are provided with cylindrical protective sleeves; cylindrical explosives with detonators are arranged outside the cylindrical protective sleeves; the detonators are connected with detonator wires. The anchor rod is simple in structure, convenient to construct and low in cost, a novel composite olive-shaped reinforced anti-slip key-surrounding rock fracture grouting-anchoring slope strengthening and supporting system is built, comprehensive three-dimensional landslide prevention with the slip face as an anti-slip focus and involving rock and earth mass strengthening by means of anchor groups composed of multiple anchor rods is achieved, and slope stability and safety are improved.

Description

technical field [0001] The invention relates to rock-soil body slope reinforcement and support technology with a definite sliding structural surface, in particular to an olive-shaped anti-sliding key grouting, anchoring and supporting blasting bolts. Background technique [0002] At present, no matter the slope formed by natural or artificial excavation, the structural surface of rock and soil is one of the main controlling factors for its stability. The decisive control effect, especially the weak structural surface with a gentle inclination angle, plays an absolute control role on the stability of the slope. Due to the low strength of the weak structural surface, it will lead to large deformation and instability of the slope, so the landslide along the structural surface is the key The main disease types and control objects of similar slopes. [0003] Slope landslides with clear and weak sliding structural planes are the most typical, prominent and largest landslide type...

Claims

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Application Information

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IPC IPC(8): E02D5/74E21D21/00F42D3/04
Inventor 言志信史盛龙哲江平
Owner LANZHOU UNIVERSITY
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