Tunnel and underground engineering surrounding rock fracture water grouting control design method

A technology of underground engineering and design method, applied in tunnels, tunnel linings, underground chambers, etc., can solve problems such as poor grouting effect, deviation of design values, and unfavorable rock mass stability.

Active Publication Date: 2018-09-04
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

However, due to the hidden nature of grouting engineering, the formulation and design of grouting control schemes for annular channels often rely on experience, especially the selection of grouting pressure and grouting hole spacing due to lack of scientific guidance leads to large deviations in design values
If the grouting pressure is

Method used

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  • Tunnel and underground engineering surrounding rock fracture water grouting control design method
  • Tunnel and underground engineering surrounding rock fracture water grouting control design method
  • Tunnel and underground engineering surrounding rock fracture water grouting control design method

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Embodiment Construction

[0046] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0047] The structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification for the understanding and reading of those who are familiar with this technology, and are not used to limit the conditions for the implementation of the present invention , so it has no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of the disclosure of the present invention without affecting the functions and objectives of the present invention. The technical content must be within the scope covered. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to lim...

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Abstract

The invention discloses a tunnel and underground engineering surrounding rock fracture water grouting control design method. The tunnel and underground engineering surrounding rock fracture water grouting control design method comprises the steps of analyzing of regional geology and hydrology geology conditions, finding out of master control water-flowing-fracture-contained basic geological features, analyzing and testing of physical and chemical properties of typical grouting control materials, building of the fracture tunnel interior grouting diffusion control equation, calculation of the theoretical value of the grouting pressure based on grouting process control, calculation of limit grouting pressure based on surrounding rock stability analysis, determining of the design values of thegrouting final pressure and the drilling intervals, formulating of the grouting finishing standard, dynamic design of underground engineering surrounding rock fracture water grouting control schemesand the like. By adopting the design method, scientific selecting of key technological parameters in the tunnel and underground engineering surrounding rock fracture water grouting plugging engineering can be achieved, and the good grouting effects is achieved.

Description

technical field [0001] The invention belongs to the field of prevention and control of water inrush in underground engineering, in particular to a design method for grouting control of tunnels and surrounding rock fissures in underground engineering. Background technique [0002] During the construction of tunnels and underground projects, joints and fissures destroy the integrity of the rock mass and increase the porosity and permeability of the rock mass. Water inrush disasters, causing casualties and heavy property losses. At present, grouting has become the main method of water damage control of tunnel and underground engineering surrounding rock fissure water. However, due to the hidden nature of grouting engineering, the formulation and design of grouting control schemes for annular channels often rely on experience, especially the lack of scientific guidance in the selection of grouting pressure and grouting hole spacing, resulting in large deviations in design value...

Claims

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Application Information

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IPC IPC(8): E21D11/10
CPCE21D11/10
Inventor 张伟杰郭建斌魏久传李孝朋韩承豪
Owner SHANDONG UNIV OF SCI & TECH
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