Simple, convenient and efficient hole plugging device and construction method thereof

Abstract

The invention discloses a simple, convenient and efficient hole plugging device and a construction method thereof. The device comprises a blast hole, an expansion substance, a detonating device, a buffer material, an auxiliary plug and a plug. Wherein one end of the auxiliary blanking plug is a pointed end, the pointed end points to the blanking plug, and the pointed end can slide along a blast hole under the action of an expansion substance and then is inserted into the blanking plug to be used for increasing the friction force between the blanking plug and the blast hole; the buffer material is used for protecting the auxiliary blanking plug from being damaged by the expansion substance; the detonating device is used for manufacturing a detonating explosive package. The device can improve the hole plugging quality, prolong the action time of the expansion substances, improve the crushing degree of rocks and the effective energy utilization rate of the expansion substances, and ensure the tunnel blasting effect, thereby improving the tunnel blasting tunneling progress. In addition, the device and the construction method thereof are time-saving and labor-saving in practical application, simple and convenient to operate and beneficial to site construction management, and have remarkable economic benefits and social benefits.

Description

technical field [0001] The invention relates to the technical field of engineering blasting, in particular to a simple and efficient hole plugging device and a construction method thereof. Background technique [0002] Due to the strong adaptability of the drill and blast method to geological conditions and low excavation costs, the current tunnels are mainly excavated by the drill and blast method. During the blasting process, materials such as gun mud are often used to plug holes. Plugging holes can enhance the blasting effect, which is very important. However, tunnel blasting and excavation generally uses small-diameter blastholes, and the number of blastholes on the face of the tunnel is as high as hundreds, and blasthole blockage is a difficult problem. At present, the plugging of blastholes is still done manually, which is labor-intensive and time-consuming, and the quality of the plugging is poor. The punching problem is serious, and the blasting gas escapes too earl...

AI Technical Summary

Problems solved by technology

However, tunnel blasting and excavation generally uses small-diameter blastholes, and the number of blastholes on the face of the tunnel is as high as hundreds, and blasthole blockage is a difficult problem

At present, the plugging of blastholes is still done manually, which is labor-intensive and time-consuming, and the plugging quality is poor. The punching problem is serious. The blasting gas escapes prematurely, and the rock-breaking effect of explosives cannot be fully exerted, resulting in the failure of tunnel blasting to achieve the expected effect. Explosives The utilization rate is greatly reduced, even resulting in a large number of over-excavation, under-excavation and blasting flying stones, etc.

In addition, in order to save the blocking time of some tunnel blasting, one or two more rolls of explosives are placed in each blasting hole without blocking directly, the noise is louder, the effective energy utilization rate of explosives is lower, and the unit consumption of explosives is higher

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