New Technology of Deep Hole Blasting and Sealing

Abstract

The invention discloses a new technology for sealing holes in deep hole blasting. The technology includes the following steps: firstly, a deep hole is opened at the construction site, and then two thirds of the explosive layer of the deep hole is filled with explosives; Set the grouting pipe on the rubber connecting sleeve, and then install the pouch by holding the handle on the pouch locker; put the pouch into the sealing section of the deep hole, and press the sealing material The water-cement ratio is 1:1 and the mixture is mixed, and the grouting pipe is connected to the grouting pump, and then the sealing material is injected into the pouch along the grouting pipe and the grouting pipe through the grouting pump, so that the pouch is bulged And block the hole-sealing section, stop the grouting when the pressure gauge shows that the pressure is 2MP, and then blast the hole-sealing material in the bladder 3 after solidifying for 20 minutes; the present invention solves the problem of punching holes; The blasting energy is concentrated; the construction process of workers is simplified, the construction time is shortened, the operation is simple, safe and reliable, the strength of the sealing material is guaranteed, and the advantages are economical and applicable.

Description

technical field [0001] The invention belongs to the technical field of blasting, and relates to a new technology for hole sealing, in particular to a new technology for deep hole blasting and hole sealing. Background technique [0002] With the vigorous development of infrastructure construction, blasting engineering is widely used in excavation engineering, tunnel engineering, urban building structure demolition engineering and other blasting operations. [0003] The reference document CN208780033U discloses a hole sealing device for blasting engineering, which includes a cantilever and a hole sealing. Both ends of the bottom of the cantilever are fixedly connected to the ground through flanges. There are several wooden wedges at equal distances inside, and a hollow conduit is inserted into the middle of several wooden wedges. The interior of the hollow conduit is slidably connected with a piston. The top of the piston is connected to the telescopic end of the electric tele...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems in the prior art that the sealing depth is not easy to control, the strength of the sealing material is not enough, the labor intensity of the workers is high, the sealing time is long, the sealing depth is not easy to control, and the blasting is easy to punch. , and the problem of high price, a new technology of deep hole blasting and sealing is proposed

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