An Estimation Method of Bolt Stress in Carbonaceous Rock Tunnel Based on Feedback Algorithm Transfer Function

A transfer function and feedback algorithm technology, applied in the installation of bolts, neural learning methods, earthwork drilling and mining, etc., can solve the problems of material waste, cost, unreasonable, etc., and achieve broad application prospects, resource saving, high efficiency and accurate estimation Effect

Active Publication Date: 2021-04-06
GUANGXI COMM PLANNING SURVEYING & DESIGNING INST
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Problems solved by technology

Anchor parameters are sometimes unreasonable based on the results of these methods, resulting in wasted material and increased costs

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  • An Estimation Method of Bolt Stress in Carbonaceous Rock Tunnel Based on Feedback Algorithm Transfer Function
  • An Estimation Method of Bolt Stress in Carbonaceous Rock Tunnel Based on Feedback Algorithm Transfer Function
  • An Estimation Method of Bolt Stress in Carbonaceous Rock Tunnel Based on Feedback Algorithm Transfer Function

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[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0040] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "left side", "right side", "upper", "lower" are based on the orientations or positional relationships shown in the accompanying drawings, and are only For the purpose of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, "first", "second" and the like do not represent components importance, and therefore should not be construed as limiting the invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present in...

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Abstract

The invention discloses a method for estimating the bolt stress of a carbonaceous rock tunnel based on a transfer function of a feedback algorithm, including step 1, selecting a tunnel monitoring section; step 2, arranging monitoring equipment; step 3, collecting monitoring data; Neural network model; step 5, training the artificial neural network model; step 6, estimation and prediction of bolt stress; step 7, selecting the diameter of the bolt according to the grade of the surrounding rock. The present invention uses three parameters of surrounding rock pressure, seepage pressure and surrounding rock deformation to use the feedback artificial neural network analysis method to estimate the stress of the bolt, and design the tunnel bolt according to the stress of the bolt, reducing the need to rely on similar engineering methods or semi-empirical methods. Designing bolts with theoretical methods causes waste of resources, because the feedback artificial neural network analysis method estimates the stress of bolts with high accuracy, saves resources in the design of tunnel bolts, conforms to the concept of sustainable development, and has broad application prospects.

Description

technical field [0001] The invention relates to the field of tunnel engineering monitoring, in particular to a method for estimating the bolt stress of a carbonaceous rock tunnel based on a transfer function of a feedback algorithm. Background technique [0002] With the vigorous development of my country's infrastructure, a large number of expressways and high-speed railways have been newly built. China is a mountainous country. Many tunnels will be built when constructing expressways and high-speed railways. When the tunnels are in danger of collapsing, reasonable support should be taken. protective measures are necessary. [0003] "Carbonaceous rock" is a kind of special rock that is easy to weather in the open air, easy to soften after absorbing water, easy to disintegrate and break when exposed to water after being disturbed, and its engineering properties are greatly affected by the environment. "Carbonaceous rock" is widely distributed throughout the country, such as ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D21/02E21F17/18G06N3/08
CPCE21D21/02E21F17/18G06N3/08
Inventor 骆俊晖周善雄米德才徐龙旺叶琼瑶邓胜强张涛王才进
Owner GUANGXI COMM PLANNING SURVEYING & DESIGNING INST
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