Analysis of Stability and Treatment on the Side and Face Upward Slope at Dianhuiping Multi-arch Tunnel
WANG Shu-ying , YANG Jun-sheng (School of Civil and Architecture,Central South University,Changsha 410075, P. R. China)
Multi -arch tunnel has some specific characters such as large excavation scope and repetitious disturbances during excavation. Using Dianhuiping Tunnel on Changji highway as an example in this paper, in - situ tests at side and face upward slope and tunnel are carried through. The factors related with the stability of side and face upward slope at multi - arch tunnel are analysed from the factors which include geological condition, landform physiognomy, groundwater, construction method and construction quality. Some treatment measures are presented, which are used successfully in practice.
【CateGory Index】： U457.2