Research on Treatment Technology for Leakage of Construction Joints in Expressway Karst Tunnel
The most common problem in karst tunnels is water leakage from construction joints.This is because karst water can precipitate calcium carbonate crystals to block drainage channels,leading to leakage again after the treatment of tunnel lining construction joints.This article is based on the water leakage treat-ment project of a certain tunnel lining construction joint.In order to enhance the maintainability of the tun-nel lining construction joint structure,the concrete base surface is treated with hydrophobic coating.This can delay the formation of calcium carbonate crystals and effectively solve the problem of leakage.In addition,to facilitate inspection and maintenance of the internal condition of the pipeline during operation,inspection holes should be left in advance.This can improve the maintainability of the lining construction joint struc-ture.
karst tunnellining construction jointsleakage of watertreatment
万方数据
维普
