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A construction method of stonework static crushing

A technology of static crushing and construction method, which is applied in blasting and other directions, which can solve the problems of complex construction process, large amount of dust, and long construction period, and achieve the effects of shortening construction period, fast slag discharge and improving construction efficiency

Active Publication Date: 2019-02-05
CHINA 19TH METALLURGICAL CORP
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the construction technology of blasting stonework is complicated, the construction period is long, and the amount of dust generated is large

Method used

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  • A construction method of stonework static crushing
  • A construction method of stonework static crushing
  • A construction method of stonework static crushing

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Embodiment Construction

[0031] The present invention is further described below in conjunction with accompanying drawing and embodiment:

[0032] Such as Figure 1 to Figure 2 As shown, a construction method of stonework static crushing, including the following steps:

[0033] Step 1. Construction preparation: Excavation face 1;

[0034] Two or more working faces 1 are opened on the cross section of the foundation pit for gas explosion construction, and small gas explosion steps are formed during excavation to create lateral free surfaces. In this embodiment, two excavation working faces 1 are set up along the cross-section of the 23.1-meter-wide foundation pit, and gas explosion construction is carried out. The excavation forms a small step of gas explosion to create a lateral free surface. The working face steps are 3 meters high and about 11.5 meters wide. m.

[0035] Step 2, drilling blastholes 111: drilling blastholes in the excavated working face 1, the blastholes 111 are vertical holes or o...

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Abstract

The invention discloses a stonework static breaking structure and a construction method thereof. The stonework static breaking structure comprises a working face; a gas explosion area and a protection layer are arranged in the working face; the protection layer is arranged at the end of the gas explosion area; blast holes are formed in the gas explosion area; expansion pipes and pulling pipes are arranged in the blast holes; and the expansion pipes are connected with an exploder connected with a power source. The construction method comprises the following steps of construction preparation, blast hole drilling, mounting of the pipes in the blast holes, blast hole filling, detonating network connection, detonating, inspecting after explosion and pipe pulling. The construction technology of cracking by expanding of carbon dioxide gas is adopted; various static breaking means of a column type splitter, an expanding agent, a breaking hammer and the like are combined to break rock; and a bench blasting mode is adopted, under the premise of guaranteeing construction safety and the construction quality, construction efficiency can be improved, the slag tapping speed is high, and meanwhile the construction period is shortened. Operation is easy; shock and dust do not exist in the whole operation process; the expansion pipes can be recycled, the cost is saved; and the environment is protected.

Description

technical field [0001] The invention relates to a construction method for static crushing of stonework. Background technique [0002] Earthwork blasting refers to the use of blasting materials to blast earthwork in order to achieve the purpose of excavation in the construction of roads, bridges, mines, tunnels, water conservancy and hydropower, field leveling, foundation pits, hole piles, pipeline trenches, etc. Widely used construction method. In the prior art, the construction technology of blasting stonework is complex, the construction period is long, and the amount of dust generated is large. [0003] The above deficiencies need to be improved. Contents of the invention [0004] In order to overcome the deficiencies of the existing technology, the present invention provides a construction method for stonework static crushing. [0005] Technical solution of the present invention is as follows: [0006] A construction method for static crushing of stonework, charact...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42D3/04F42D1/045F42D1/18F42D1/08
CPCF42D1/045F42D1/08F42D1/18F42D3/04
Inventor 史军花黄瑞雄倪代俊杨洋
Owner CHINA 19TH METALLURGICAL CORP
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