CAJ | 학술논문

富水段隧道地质条件往往较差,TBM通过富水隧洞段时,由于水压作用,掌子面极有可能会坍塌,进而掩埋刀盘及机体,增大刀盘的扭矩、甚至出现洞壁坍塌,撑靴无法支撑洞壁,TBM不能向前推进,针对上述可能出现的情况,结合TBM设备本身的特点,提出通过富水地段TBM施工施工对策:注浆堵水加固、适量引排水和洞内反坡排水,这些措施获得良好的施工效果,确保TBM掘进安全.
부수단수도지질조건왕왕교차,TBM통과부수수동단시,유우수압작용,장자면겁유가능회담탑,진이엄매도반급궤체,증대도반적뉴구、심지출현동벽담탑,탱화무법지탱동벽,TBM불능향전추진,침대상술가능출현적정황,결합TBM설비본신적특점,제출통과부수지단TBM시공시공대책:주장도수가고、괄량인배수화동내반파배수,저사조시획득량호적시공효과,학보TBM굴진안전.
Hydrogeological condition of water-rich tunnel is sometimes weak, due to the hydrostatic pressure, the tunnel face is likely to collapse when the TBM passes through the water-rich area. Further more, the cutter head and shield machine will be buried, torque of the cutterdisc will be increased, the tunnel wall will collapse and the supporting boots failed to support the tunnel wall, which makes it hard for the TBM to move forward. With regard to the possible results of the above events, combing with the characteristics of the TBM, construction countermeasures are proposed: grouting and blocking water, adequate water diversion and drainage, reverse slope drainage in the tunnel. A good construction effect has been achieved with the help of these measures, and the TBM driving is kept in a safe condition.