A tunnel lining structure and construction method filled with ceramsite

Abstract

The invention discloses a tunnel lining structure filled with ceramsite and a construction method, which includes surrounding rock, primary support is anchored on the tunnel rock mass of the surrounding rock through bolts, and the inner layer of the primary support is A waterproof layer is laid, a ceramsite filler is laid on the inner layer of the waterproof layer, a steel arch is set inside the ceramsite filler, and a secondary lining is poured inside the steel arch. Using this technology can give full play to the bearing capacity of the supporting material itself, greatly improve the utilization rate of the steel arch, reduce the amount and strength requirements of the steel arch, use ceramsite fillers to protect the steel arch to the greatest extent, and effectively control the surrounding rock Deformation, protection and reinforcement of surrounding rock, saving resources and realizing green economy.

Description

technical field

[0001] The invention belongs to the field of tunnel engineering lining structures, and in particular relates to a tunnel lining structure filled with ceramsite and a construction method. Background technique

[0002] In contemporary society, with the rapid development of my country's economy, my country's high-speed railways, high-grade highways, expressways, intercity railways, subways, urban rail transit, etc. have developed rapidly, and there are more and more tunnels and underground projects. Tunnel engineering is an underground structure in various geological environments. The unpredictability of geological environment determines the high risk and complexity of tunnel engineering. Its construction safety and engineering quality issues have also attracted people's attention. The quality of tunnels It is concealed, sudden, complex and repetitive. Tunnel engineering is not only a complex project involving many disciplines, but also has the characteristics ...

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