Device and method for pouring concrete continuous wall along gob-side entry in mining face

Abstract

The invention discloses a device and a method for pouring a concrete continuous wall along a gob-side entry in a mining working face. The shape of the fiber flexible formwork is a cuboid or a cube, and it is composed of a main formwork and a roof formwork. The fiber flexible formwork is connected with flanges, pouring ports, planting ribs, limit holes, and tie bars. The fiber flexible formwork is prefabricated, and the flange hangs the flexible formwork on the coal seam roof through a single hydraulic prop or anchor rod. The ends are fixed with pallet nuts, the concrete delivery pipe is inserted into the filling port and tied, and the concrete pump is used to inject concrete into the flexible formwork through the delivery pipe to form a concrete continuous wall. The structure is simple, the construction speed is fast, the labor efficiency is high, the airtightness is good, the grout is not easy to leak, the concrete filling is dense, the roofing effect is good, the mechanized operation, adapt to the change of the slope of the roof and the floor, widely used in coal mines, metallurgical mines, water conservancy, underground construction , defense and other industries.

Description

technical field [0001] The invention relates to a concrete continuous wall, in particular to a device and a method for pouring a concrete continuous wall along a gob-side entry in a mining working face. Background technique [0002] Traditional mining face gobside entry retention uses wooden piles, dense pillars, gangue bags, material stone walls or concrete diaphragm walls, while the concrete diaphragm walls use rigid formwork to set up the formwork. The construction disadvantages of these methods are that they require a lot of manpower and material resources , and the labor intensity is high, and the construction speed is slow; the rigid formwork is not easy to change with the change of the slope surface of the roof and floor, resulting in poor airtightness, easy grout leakage during the concrete pouring process, and the poured concrete is not dense, and it is difficult to be tightly combined with the coal seam roof . Contents of the invention [0003] The purpose of th...

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Problems solved by technology

[0002] Traditional mining face gobside entry retention uses wooden piles, dense pillars, gangue bags, material stone walls or concrete diaphragm walls, while the concrete diaphragm walls use rigid formwork to set up the formwork. The construction disadvantages of these methods are that they require a lot of manpower and material resources , and the labor intensity is high, and the construction speed is slow; the rigid formwork is not easy to change with the change of the slope surface of the roof and floor, resulting in poor airtightness, easy grout leakage during the concrete pouring process, and the poured concrete is not dense, and it is difficult to be tightly combined with the coal seam roof

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