Double partition two-arch tunnel

Abstract

The invention relates to a double partition two-arch tunnel, which comprises a left tunnel and a right tunnel which consist of a partition, a waterproof and drainage system, and secondary lining, wherein the partition is upright double partitions, and the tops of the double partitions are connected by arc lining; and the waterproof and drainage system consists of a waterproof layer, a drain hole and a drain ditch, the waterproof layer is arranged between the secondary lining and primary support, the drain hole is positioned in the arch lining at the tops of the double partitions, and the drain ditch is positioned on the bottom of a mid-guide hole formed between the double partitions. The double partitions, the secondary lining and inverted arch are orderly poured to form closed double holes. The double partition two-arch tunnel has the advantages that the whole anti-seismic performance of a double partition two-arch tunnel structure is superior to that of a single partition two-arch tunnel structure; water can be promptly drained into the mid-guide hole formed between the double partitions through the drain hole so as to solve the water leakage problem of two-arch tunnels; and an effective space is reserved between the double partitions, and personnel can enter the mid-guide hole from the left tunnel or the right tunnel in emergency and are evacuated toward both ends of the tunnel.

Description

technical field [0001] The invention relates to the technical field of tunnel engineering, in particular to a double partition wall and double arch tunnel. Background technique [0002] With the continuous extension and construction of my country's railways and highways, it is often necessary to cross rock masses, so railway tunnels and highway tunnel projects are increasing day by day. The individual tunnels built in sections have many restrictions in terms of line selection and opening location selection; and the construction of two individual tunnels in sections is expensive and has a great impact on the environment. The double-arch tunnel just makes up for the deficiency of building a single tunnel by framing, and its application is becoming more and more extensive. After entering the 1990s, my country has repeatedly applied double-arch tunnels in some expressway projects in Yunnan, Guizhou and other provinces. The double-arch tunnel has a series of characteristics: (1...

AI Technical Summary

Problems solved by technology

While the double-arch tunnel has the above advantages, there are also many problems: (1) the seismic performance of the double-arch tunnel with a single partition wall is insufficient; (3) The escape channel of the tunnel itself is insufficient, once an accident occurs, the consequences will be very serious

..." The patent is a single partition wall, which has deficiencies in seismic performance, which is an important factor affecting the stability and applicability of underground structures; and the tunnel itself lacks necessary escape routes

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