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Foundation pit earth-rock excavation blasting method and protective equipment used for blasting

A technology of protective equipment and earthwork, applied in the field of foundation pit construction, can solve problems such as easy smashing of equipment and people, safety accidents, stones blowing up, etc., and achieve the effect of avoiding trouble and ensuring safety

Inactive Publication Date: 2020-09-18
深圳市蛇口招商港湾工程有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The above-mentioned existing technical solutions have the following defects: in the existing blasting, the stones are easy to be blown away, and the blown stones will fly out of the blasting area, and are easy to hit equipment and people outside the blasting area, thereby causing safety accidents

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  • Foundation pit earth-rock excavation blasting method and protective equipment used for blasting
  • Foundation pit earth-rock excavation blasting method and protective equipment used for blasting

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Embodiment Construction

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

[0047] refer to figure 1 , is a method for excavating and blasting foundation pit earthwork excavation disclosed by the present invention, comprising the following steps:

[0048] Step 1: On-site survey, survey the blasting site;

[0049] Step 2: Formulate the blasting plan and formulate the blasting plan according to the site survey. After the blasting plan is completed, it needs to be reviewed by the supervisory engineer and reported to the public security department; the safety of the blasting plan is guaranteed through the supervision review, and the blasting material is transported to the public security bureau. certificate, which can avoid unnecessary troubles in the subsequent transportation of blasting items;

[0050] Step 3: Construction preparation, staffing before construction, transportation and preparation of blasting equipment at the same time...

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Abstract

The invention relates to the technical field of foundation pit construction, in particular to a foundation pit earth-rock excavation blasting method. The method comprises following steps: step 1, on-site investigation: a blasting site is investigated; step 2, formulation of a blasting scheme: the blasting scheme is formulated according to the on-site investigation; step 3, construction preparation: personnel allocation is carried out before construction, and blasting materials are transported and prepared simultaneously; step 4, drilling: blast holes are formed in a blasting area through drilling by drilling equipment at equal intervals; step 5, charging: the blast holes are filled with explosives, and detonators are inserted into the blast holes; step 6, guarding protection: the blastingarea is detected to determine that no personnel or equipment exists in the blasting area, meanwhile, the blasting area is guarded, and protective equipment for preventing stone which is blown up fromflying out of the blasting area is arranged; and step 7, detonation: the explosives are detonated. The foundation pit earth-rock excavation blasting method has the effects that the stone which is blown up can be protected, the probability of the stone flying out of the blasting area is reduced, and the probability of causing safety accidents is reduced.

Description

technical field [0001] The invention relates to the technical field of foundation pit construction, in particular to an earthwork excavation and blasting method for foundation pits. Background technique [0002] Earthwork blasting refers to the use of blasting materials such as explosive detonators to blast earthwork in the construction of roads, bridges, mines, tunnels, water conservancy and hydropower, field leveling, foundation pits, hole piles, pipeline trenches, etc., to achieve the purpose of excavation A widely used construction method. [0003] Existing earthwork excavation blasting method of foundation pit comprises the following steps: [0004] Step 1: On-site survey, survey the blasting site; [0005] Step 2: Blasting design, designate the blasting scheme according to the site survey; [0006] Step 3: Construction preparation, staffing before construction, and ready blasting equipment at the same time; [0007] Step 4: Drill holes, use drilling equipment to dr...

Claims

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Application Information

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IPC IPC(8): F42D1/00F42D5/045F42D3/04
CPCF42D1/00F42D5/045F42D3/04
Inventor 罗建斌
Owner 深圳市蛇口招商港湾工程有限公司
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