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A method of using a segmented sealing device for strip partial filling and mining

A strip and bar technology, applied in the field of segmented sealing devices, can solve the problems of shortening the coagulation time, complex plugging procedures, and imprecise sealing, etc., so as to improve the coagulation conditions and construction environment, shorten the coagulation time, The effect of reducing filling costs

Active Publication Date: 2021-08-13
TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the existing filling body sealing method with complex sealing process, poor sealing, poor roofing effect, low filling rate of the level entry, high labor intensity, poor solidification working condition due to airtight filling body and no ventilation during the condensation process, and only It is suitable for the shortcomings of one-side or two-side sealing, and provides a segmental sealing device and its use method for strip partial filling mining. This method is effectively combined with the paste filling process, and is suitable for one-side solid three-side The roadway slope is less than 5°, easy to install and disassemble, the formwork can be reused, and the use method is flexible. The filling process meets the requirements of roadway wind speed and realizes full wind pressure ventilation, shortens the setting time, improves the setting conditions and construction environment, Improve the roof connection rate, filling rate and filling body strength of the entry road, and reduce the filling cost

Method used

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  • A method of using a segmented sealing device for strip partial filling and mining
  • A method of using a segmented sealing device for strip partial filling and mining
  • A method of using a segmented sealing device for strip partial filling and mining

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Embodiment Construction

[0031] In conjunction with the accompanying drawings, the comparative invention is further described.

[0032] When filling in the tunnel formed by roof 1, base plate 2 and surrounding rock 3, first determine the position of the lower formwork 11, dig out the groove of the flange plate of the lower formwork 11 on the base plate 2, and place the lower formwork 11 on the side The side is fixed by the side anchor rod 6, and then the middle formwork 10 and the upper formwork 9 are placed and fixed in sequence; the position of the I-shaped formwork is determined according to the length of the side formwork and the position of the fixing bolt hole 8, and the lower I-shaped formwork is excavated on the bottom plate 2. Place the lower I-shaped formwork 17 in the groove of the flange plate of the formwork 17, fix it through the side anchor rod 6, and then place and fix the middle I-shaped formwork 16 and the upper I-shaped formwork 15; determine the end formwork and side formwork And t...

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Abstract

A segmented sealing device for strip partial filling mining and its use method, belonging to the field of coal mining methods, can solve the problem of complicated sealing process, loose sealing, poor roofing effect, Due to the low filling rate of the level roadway, high labor intensity, poor solidification conditions due to the closed filling body during the condensation process and no ventilation, and only suitable for one-side or two-end sealing, etc., the roadway is divided into several sections for filling, and different specifications and layers are used. The I-shaped formwork, end formwork and side formwork are connected by bolts as the sealing device of the filling body. At the same time, the original top anchor and the new bottom anchor method of the roadway are used to connect the mine-used ordinary steel strands to the top, bottom anchor and I-shaped formwork, side formwork and end formwork are tightened to strengthen and fix the formwork. The method is effectively combined with the roadway paste filling process, and the installation and disassembly are convenient, the formwork can be reused, and the use is flexible. It is a reliable, economical and advanced method.

Description

technical field [0001] The invention belongs to the technical field of coal mining methods, and in particular relates to a segmental sealing device for strip part filling mining and a usage method thereof. Background technique [0002] Filling mining is a green mining process that replaces coal resources through filling materials, while reducing roadway excavation, controlling overburden subsidence, and reducing surface movement, thereby improving underground mining conditions, increasing recovery rates, and protecting surface buildings and the ecological environment of the mining area . There are various methods of filling and mining, among which roadway paste filling has the advantages of good slurry fluidity, high density and high filling body strength, so it is relatively effective in controlling the activity of the overlying strata and slowing down surface subsidence. With the continuous update and development of key equipment such as long-distance transportation of hi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/18E21F15/00E21F15/02
CPCE21C41/18E21F15/00E21F15/02
Inventor 马进功魏帅王清雨高云峰刘立明夏长春晓亚迪武书理张雷袁言昆毕建国梁大海赵媛媛张振东
Owner TAIYUAN INST OF CHINA COAL TECH & ENG GROUP
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