A method of repairing deep pits

Abstract

The invention discloses a method for repairing deep pits. The method comprises the following steps: cleaning and loosening soil; drawing an integral structure chart of pits; establishing a fixed bar-mat reinforcement cage and arranging preserved holes; casting concrete at the bottom; inflating an air bag; adding concrete for pouring solidification to form the early form of an enclosed container; exhausting the air bag to get away from the early form; carrying out plastic spraying or brush coating of cement slurry; spraying or brush coating an elastic waterproof material; installing pipelines and functional valves; and filing and discharging a supercharging medium. The enclosed cavity is formed into a pressurized enclosed cavity capable of realizing self-adjustment of inner pressure intensity and outer pressure intensity, valve switches can suffer from the change of pressure intensity so as to control the supercharging medium to come in or out of the enclosed cavity, so that the inner air pressure and the outer air pressure of the enclosed cavity are adjusted to be balanced to keep the stability to form a structure similar to a supercharging pneumatic tire, a large quantity of repair material resources are saved, and the construction is easy.

Description

technical field [0001] The invention belongs to the technical field of deep pit restoration, and in particular relates to a method for repairing deep pits. Background technique [0002] The places where human life and production develop and develop, and where civilizations prosper and prosper, must be connected by roads and roads to all parts of the world to realize the intersection of different cultures, especially for the development of commodities, road construction and smooth traffic can ensure that commodities go from the base to the outside world. [0003] Deep pits are formed when reclaimed roads, reclaimed airport runways, or reclaimed land collapse due to earthquakes, crustal movement, or blasting. At present, the repair of deep pits in reclamation projects generally uses concrete landfill repair, and then is leveled by a road roller. It needs to be filled with high-density concrete that is equal in volume to the space in the deep pit depression, and the plane forme...

AI Technical Summary

Problems solved by technology

At present, the repair of deep pits in reclamation projects generally uses concrete landfill repair, and then is leveled by a road roller. It needs to be filled with high-density concrete that is equal in volume to the space in the deep pit depression, and the plane formed by filling concrete repair is easy to be damaged again. damage, poor durability, and frequent repairs are required, resulting in a waste of repair material resources such as concrete; or a supporting platform is manufactured separately and built inside the deep pit, but the size of the deep pit is unpredictable, and the manufactured platform is in The adaptability of the actual construction site is poor, the structure is complex, the manufacturing cost is high, the method of using it to repair deep pits is also complicated, and there are many factors of instability and uncertainty

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