Foldable framework membrane bag infilled wall/body for gob-side entry retaining and construction method

Abstract

The invention relates to a foldable framework membrane bag infilled wall / body for gob-side entry retaining and a construction method. The infilled wall / body comprises four vertical rods, shear hinge frameworks are arranged between the adjacent vertical rods, and the vertical rods support each other to form a first shear hinge surface, a second shear hinge surface, a third shear hinge surface and a fourth shear hinge surface which are spliced in sequence; and each shear hinge framework is wrapped with geotechnical cloth to form an independent membrane bag, filling materials are injected into the membrane bags to serve as a filling body outer side formwork, the multiple independent membrane bags are spliced to form a cuboid membrane bag, then the space of the cuboid membrane bag is continuously filled with the filling materials, and therefore the corresponding infilled wall / body is formed. The problems that an existing roadside supporting formwork is inconvenient to install, slow in construction progress and poor in integrity, prefabricated components are difficult to transport, and finished products are inconvenient to protect are solved, and the purposes of being easy to store and transport, convenient to install on site, low in construction labor intensity, good in goaf sealing performance and good in integrity are achieved through factory prefabrication.

Description

technical field [0001] The invention relates to a foldable skeleton film bag filling wall / body and a construction method for gob-side entry retention, belonging to the field of side support of gob-side entry retention. Background technique [0002] The roadside support is a roadway protection method in which various supports are erected on the side of the gob in the roadway when the roadway is retained along the goaf. The existing roadside support usually includes the following types. A column-type filling formwork for gob-side entry retention and its use method. The filling formwork has poor integrity, the formwork cannot be folded and stored, and needs to be constructed and assembled on site, and modular design and construction cannot be realized; the application for patent No. CN109209485A Disclosed is a trapezoidal roadside support body and support method for filling mining. The roadside support method uses goaf coal gangue as raw material, adopts steel mesh hanging, con...

AI Technical Summary

Problems solved by technology

[0002] The roadside support is a roadway protection method in which various supports are erected on the side of the gob in the roadway when the roadway is retained along the goaf. The existing roadside support usually includes the following types. A column-type filling formwork for gob-side entry retention and its use method. The filling formwork has poor integrity, the formwork cannot be folded and stored, and needs to be constructed and assembled on site, and modular design and construction cannot be realized; the application for patent No. CN109209485A Disclosed is a trapezoidal roadside support body and support method for filling mining. The roadside support method uses goaf coal gangue as raw material, adopts steel mesh hanging, concrete spraying and other processes, so the construction is complicated and the construction labor intensity is high. The patent No. is that the application of CN106677804B discloses a kind of roadside retaining system and construction method thereof along the gob-side roadway. There is a problem that the construction process is relatively complicated and there are many construction procedures

[0003] To sum up, there are many problems in the existing roadside support, such as many construction process steps, high construction labor intensity, large prefabricated components in the factory, difficult transportation, poor economy, poor sealing of gobs, and poor support integrity. There is an urgent need for a comprehensive formwork system that can realize shrinkage and folding of the formwork of the support body, is convenient for transportation, easy to construct, has low construction labor intensity, good integrity and good airtightness of the goaf

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