Water pressure burst hole and burst method with energy saving and environment friendship

An energy-saving and environmental protection engineering, hydraulic blasting technology, which is applied in blasting and other directions, can solve the problems of dust polluting the environment and not being able to fully utilize the energy of explosives, and achieve the effects of improving economic benefits, energy utilization, and construction efficiency

Active Publication Date: 2007-10-03
CHINA RAILWAY 11TH BUREAU GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both of these two blasting methods cannot make full use of the energy of ex...

Method used

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  • Water pressure burst hole and burst method with energy saving and environment friendship
  • Water pressure burst hole and burst method with energy saving and environment friendship
  • Water pressure burst hole and burst method with energy saving and environment friendship

Examples

Experimental program
Comparison scheme
Effect test

test approach 1

[0038] Test plan 1: blast hole 1 is 3.8 meters deep, water column layer 2 is 20 cm deep, explosive layer 3 is 2.6 meters deep, water column layer 5 is 60 cm deep, backfill plugging layer 6 is 60 cm deep

test approach 2

[0039] Test plan 2: blast hole 1 is 4 meters deep, water column layer 2 is 20 cm deep, explosive layer 3 is 2.4 meters deep, water column layer 5 is 60 cm deep, and backfill plugging layer 6 is 80 cm deep

[0040] Test 1: Open-pit deep-hole hydraulic blasting was carried out in six different sites. Aiming at different geology, different step heights, and different drilling diameters, 2,952 blastholes were actually blasted, and more than 150,000 cubic meters of rock were blasted. Compared with backfilling the hole with soil for deep hole blasting in the past, it saves more than 20% of explosives and more than 18.6% of cost.

[0041] Test 2: Scale test of shallow hole hydraulic blasting, blasting 95,000 cubic meters of stone, and achieved good technical results compared with shallow hole blasting blocked by backfilling with soil, as shown in Table 2.

[0042] blasting

Types of

unit

medication

reduce hundred

Ratio (%)

vibration speed

(cm / s)

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Abstract

The present invention is water pressure burst hole and burst method with energy saving and environment friendship. Inside the burst hole, there are explosive layer with detonator, backfilled blocking layer and lead wires connected to the detonator and led outside the burst hole. The present invention features that there are two water column layers comprising water bag separately in two sides of the explosive layer. The present invention can raise the explosive energy utilizing rate, raise construction efficiency, raise economic benefit and protect environment.

Description

technical field [0001] The invention relates to an energy-saving and environment-friendly engineering hydraulic blasting blasthole and a blasting method thereof. Background technique [0002] As we all know, the blasting method with the widest range of blasting and the largest number of rocks in engineering blasting is the "blaster hole" blasting method. The so-called "blaster hole" blasting method refers to "shallow hole" blasting using an air gun to drill holes and "deep hole" blasting using a drilling rig to drill holes. Whether it is shallow hole or deep hole blasting, the current situation in China is: the blast hole is afraid of water, so the water in the blast hole must be removed, and waterproof explosives should be used if the removal is not clean; the blast hole is blocked with soil or rock debris for open-air blasting; No backfill plugging is used for blasting excavation blastholes. This blasting method can not make full use of explosive energy, but also pollute...

Claims

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Application Information

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IPC IPC(8): F42D3/00F42D1/08
Inventor 荆山何广沂
Owner CHINA RAILWAY 11TH BUREAU GRP
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