Sunken tube reinforcement device for shaft construction

Abstract

The invention discloses a sinking drum reinforcing device for shaft construction. The reinforcing device comprises a cylinder extending in the vertical direction. A plurality of grouting devices are arranged in the inner cavity of the cylinder at intervals in the vertical direction. Each grouting device comprises an annular grouting pipe arranged in the middle of the inner cavity, a plurality of radial grouting pipes evenly distributed in the radial shape are connected onto the peripheral edge of the annular grouting pipe, the tail end of each radial grouting pipe is fixedly connected with a corresponding grouting port arranged in the wall of the cylinder in a sealing mode, and the upper portion of the annular grouting pipe is connected with a vertical grouting pipe penetrating a top plate in a sealing mode and extending upwards. The vertical grouting pipes in the grouting devices penetrate through holes formed in the top plate correspondingly in a sealing mode to be arranged abreast, and a water injection pipe used for extending upwards vertically to be communicated with a ground water injection device and the inner cavity of the cylinder is further fixed on the top plate of the cylinder in a sealing mode. The sinking drum reinforcing device is simple in structure, convenient to install and use, short in construction period, high in efficiency, capable of reducing construction cost and capable of solving the problem in the prior art that reinforcing of sand layers rich in water or soft rock layers in a shaft is difficult.

Description

technical field [0001] The invention belongs to the technical field of shaft construction reinforcement, and more precisely relates to a shaft construction tool for reinforcing the geological structures of Class IV or Class V surrounding rocks such as water-rich sand layers and weak rock layers in the middle section of the shaft during shaft construction. Sink reinforcement device. Background technique [0002] The excavation of vertical shafts is involved in mining, tunnel construction and water conservancy and hydropower projects. Due to the very complex geological conditions, weak geological layer structures such as Class IV or Class V surrounding rocks are often encountered during shaft construction, especially when encountering Upper Tertiary unconsolidated sandstone (sand layers), fine muddy rocks, etc. Sandstone, sandy clay rock interbedded or intersected, etc. belong to the geological stratum structure of unstable IV surrounding rock or extremely unstable V surround...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a simple, safe, efficient and economical sinker reinforcement device for shaft construction to solve the problem that the existing technology cannot effectively reinforce the water-rich sand layer and weak rock layer in the middle section of the shaft. The problem

Images