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Optimal determination method of rock slope prestressed bolt reinforcement parameters

A technology for rock slopes and measurement methods, which is applied in the field of optimal determination of prestressed bolt reinforcement parameters for rock slopes and the optimization and measurement of prestressed bolt reinforcement parameters for rock slopes in plane failure mode, and can solve the problem of manpower and material resources. Waste, increasing the number and length of anchor rods, increasing the construction period, etc.

Active Publication Date: 2021-05-18
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the stability of the slope, the number and length of the anchor rods will inevitably be increased too much, which will inevitably lead to an increase in the cost of the reinforcement project and the construction period, as well as a waste of manpower and material resources.

Method used

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  • Optimal determination method of rock slope prestressed bolt reinforcement parameters
  • Optimal determination method of rock slope prestressed bolt reinforcement parameters
  • Optimal determination method of rock slope prestressed bolt reinforcement parameters

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Embodiment Construction

[0100] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0101] In order to better illustrate the present invention, the feasibility is described in detail in combination with a specific engineering application, so as to prove the practical significance and value of the calculation method.

[0102] The specific implementation plan and calculation process are as follows:

[0103] Step 1: Determination of the basic physical and mechanical parameters of the slope to be reinforced

[0104] According to the current "Code for Geotechnical Engineering Exploration" (GB50021-2001), the geotechnical engineering investigation and in-situ test of a rocky slope show that the landslide is 35m high, 12m wide, and the slope angle β is 70°. The force c is 5KPa, the internal friction angl...

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Abstract

The invention relates to the fields of slope stability evaluation, landslide reinforcement and prevention, and relates to a method for optimizing and measuring rock slope prestressed bolt reinforcement parameters, comprising the following steps: step 1, determining the basic physical and mechanical parameters of the slope to be reinforced; Step 2, determine the rock mass slope stability coefficient; Step 3, determine the rock mass slope stability correction coefficient; Step 4, determine the bolt layout and bolt reinforcement anti-sliding force value; Step 5, rock mass slope prestress Determination of the optimal incident angle of the bolt; Step 6, determine the quantitative relationship between the bond strength of the rock anchor and its uniaxial compressive strength; Step 7, determine the optimal anchoring length of the prestressed bolt; Step 8, determine the optimal anchoring length of the prestressed bolt Design overall length. The invention has good economic benefit and practical value in slope reinforcement engineering, not only can accurately measure the incident angle and anchorage length of anchor bolts, but also it is more economical, reasonable and safe to use the method to design prestressed anchor bolts.

Description

technical field [0001] The invention relates to the fields of slope stability evaluation, landslide reinforcement and prevention, and relates to an optimized measurement method for rock slope prestressed bolt reinforcement parameters, in particular to a rock slope prestressed bolt reinforcement parameter in a plane failure mode optimized measurement method. Background technique [0002] In recent years, prestressed anchor rods have been widely used in the fields of slope reinforcement and landslide prevention because of their high tensile strength, good reinforcement effect and low cost. Prestressed bolt support belongs to active support, that is, it can play the role of reinforcement and treatment without displacement of the slope body. Because this support method applies prestress to the slope body, and uses the rebound of the steel bar to compress the unstable slope body after anchoring, so that the slope body is in a state of compression, so the displacement of the slop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/74E02D17/20G06F30/20G06F119/14
CPCE02D5/74E02D17/20G06F30/00Y02A10/23
Inventor 贺可强信校阳
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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