Plugging method and plugging device for high sub-level open draw shaft mouth

Abstract

The invention discloses a plugging method and a plugging device for a high sub-level open draw shaft mouth. The method comprises the following steps of: performing on-site treatment; preparing materials; and plugging. The plugging device comprises a concrete member and anchor rods, wherein the anchor rods are matched with anchor holes around the shaft mouth; the concrete member comprises a structural framework and cast concrete; the structural framework comprises a base plate and a metal net rack; the base plate is provided with bridging holes corresponding to the anchor holes; and the anchor rods penetrate through the bridging holes to be fixedly connected with the anchor rods and the metal net rack so as to form the structural framework. According to the plugging device, a composite structure that the base plate and the concrete member are combined with a ground anchor structure is adopted to realize plugging of the draw shaft mouth, so that the construction process is simplified, the safety for construction is improved, the firmness of shaft sealing is further enhanced, meanwhile, disassembly of a shaft mouth sealing cover is also facilitated, and reutilization of the draw shaft is facilitated. The plugging device has the characteristics of simple structure and easiness and convenience in plugging operation; the plugging is firm, safe and durable; a person needs not to enter a shaft or equipment is not required to be arranged in the shaft to operate in a plugging process; and the construction is safer.

Description

technical field [0001] The invention belongs to the technical field of mining equipment, and in particular relates to a wellhead sealing method and a sealing device for a high-section sky chute that is simple in process, convenient and safe in construction, and capable of sealing the wellhead as a whole. Background technique [0002] The chute is often used in the mining industry. However, since the chute is located near the exit and entrance of the main mining area, the chute with the open wellhead will affect the entry and exit of mining equipment and miners, and there are serious safety hazards. Therefore, In order to ensure the safety of personnel and equipment in and out and the normal withdrawal of the main mining area in the future, it is necessary to block the wellhead of the chute to ensure production safety. The traditional way of sealing the chute is basically to fill the vertical chute, and then to bolt and weld the reinforced concrete to pour, or to use skips an...

AI Technical Summary

Problems solved by technology

[0002] The chute is often used in the mining industry. However, since the chute is located near the exit and entrance of the main mining area, the chute with the open wellhead will affect the entry and exit of mining equipment and miners, and there are serious safety hazards. Therefore, In order to ensure the safety of personnel and equipment in and out and the normal withdrawal of the main mining area in the future, it is necessary to block the wellhead of the chute to ensure production safety

The traditional way of sealing the chute is basically to fill the vertical chute, and then to bolt and weld the reinforced concrete to pour, or to use skips and other equipment to bolt the shaft in the shaft before pouring, but in the actual production process Affected by factors such as on-site environmental constraints or tight construction schedules, illegal operations often occur in order to catch up with the construction period, which brings serious unsafe factors. For this reason, the research and development of an overall structure installation and sealing will help shorten the construction period. The safe and efficient wellhead plugging technology that eliminates potential safety hazards is the key to solving the problem of wellhead plugging in high-section slide wells during production operations

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