Anchoring system for reinforcing ground fissure through magnetic cement mortar and reinforcing method

Abstract

The invention discloses an anchoring system for reinforcing a ground fissure through magnetic cement mortar and a reinforcing method. By using the mutual attraction effect between the magnetic cement mortar and a magnetic anchorage device, anchor holes are drilled in soil bodies at two sides of the ground fissure; special anchor rods provided with magnetic base plates are driven inwards and are anchored through the magnetic cement mortar; additionally, a full-coverage type magnetic cement mortar net is arranged on the whole soil body section around the magnetic anchor rods; and through the combination with the arrangement of a connecting sleeve adsorbed with Nd-Fe-B magnet patches and arranged in a ground fissure space, a comprehensive magnetic field environment is finally formed at the ground fissure; and through the joint effect of the interaction force between every two of the magnetic base plate, the cement mortar and the connecting sleeve and the anchoring force of the anchor rods, traction force in opposite directions is exerted to the two sides of the ground fissure, and is used for resisting the dead weight, side tension and bending moment effects of an inclined soil body of the ground fissure, and the purposes of reinforcing the ground fissure and preventing and limiting secondary cracking and broadening of the ground fissure are achieved.

Description

technical field [0001] The invention relates to an anchorage system and a reinforcement method for reinforcing ground fissures with magnetic cement mortar, belonging to the technical field of geotechnical engineering. Background technique [0002] Ground fissures are a geological phenomenon in which surface rocks and soils are cracked by natural or human factors, and cracks of a certain length and width are formed on the ground. Ground fissures have strong potential hazards to engineering safety and people's lives. They will cause local housing cracks, building damage, farmland destruction, road deformation, pipeline rupture, etc. It will also cause water to seep into the ground fissure zone, cause the foundation to soften and deform, and even damage the safety of the cavern. It can also cause damage to the joints of the built natural gas pipelines, sewage pipes, sewers, etc., and leak flammable, explosive and toxic gases. There are many soil fissures in the ground fissure ...

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Problems solved by technology

It will also cause water to seep into the ground fissure zone, cause the foundation to soften and deform, and even damage the safety of the cavern. It can also cause damage to the joints of the built natural gas pipelines, sewage pipes, sewers, etc., and the leakage of flammable, explosive and toxic gases

There are many soil fissures in the ground fissure deformation zone, which may cause partial collapse of the foundation pit wall or tunnel during construction, and concentrated water seepage along the fissure zone, and uneven settlement of the base

Different from its huge potential disaster, the repair and reinforcement measures for ground fissures are very scarce in engineering technology at present. For shallow ground fissures, only cement filling is usually used to fill them. For earthquake cracks and active cracks in basement fractures, current technology The means are difficult to resist, and usually only real-time monitoring can be adopted but no reinforcement and repair can be carried out

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