Tunnel construction method

The invention provides a tunnel construction method. The tunnel construction method comprises the steps that S1, a to-be-excavated tunnel area is divided into a plurality of unit areas from top to bottom; s2, earthwork of the Nth unit area is excavated from top to bottom, a supporting layer is const...

Full description

Saved in:
Bibliographic Details
Main Authors NAN XIAOBO, ZHOU YONG, ZHONG JIULIN, HE ZHAODING, ZHAO JIAYIN, YANG TAO, LIANG CHAOHENG, WANG SONG, HE CHENGYI, ZENG GUANMING
Format Patent
LanguageChinese
English
Published 26.08.2022
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
Online AccessGet full text

Cover

More Information
Summary:The invention provides a tunnel construction method. The tunnel construction method comprises the steps that S1, a to-be-excavated tunnel area is divided into a plurality of unit areas from top to bottom; s2, earthwork of the Nth unit area is excavated from top to bottom, a supporting layer is constructed on the inner wall of the tunnel corresponding to the Nth unit area, and N is equal to 1 at the moment; s3, earthwork of the (N + 1) th unit area is excavated, a supporting layer is constructed on the inner wall of the tunnel corresponding to the side portion of the (N + 1) th excavated unit area, and the (N + 1) th supporting layer is fixedly connected with the Nth supporting layer; s4, the step S3 is circulated until all the unit areas are excavated and the multiple supporting layers are connected into a whole; and S5, a first inverted arch is constructed at the bottom of the excavated tunnel, and the two ends of the first inverted arch are fixedly connected with the ends of the corresponding supporting lay
Bibliography:Application Number: CN202210593058