文(wen)章來源：中國鐵路工程總公司 發(fa)布時間(jian)：2012-12-06
近日(ri)，中鐵五局在承建(jian)的青(qing)海省共和(he)至(zhi)玉(yu)樹公(gong)路鄂拉山隧(sui)道施(shi)(shi)工(gong)(gong)中，通過(guo)鋪設遮(zhe)陽網(wang)和(he)堆碼砂袋、采(cai)取(qu)自(zi)進式錨桿施(shi)(shi)鉆、采(cai)取(qu)地質鉆機(ji)套管跟進施(shi)(shi)鉆工(gong)(gong)藝、采(cai)取(qu)低溫早強混凝土(tu)噴護和(he)模(mo)筑等4項技術成功(gong)破解了高(gao)原凍土(tu)施(shi)(shi)工(gong)(gong)難(nan)題，確保(bao)了高(gao)原凍土(tu)情況下(xia)的隧(sui)道施(shi)(shi)工(gong)(gong)安(an)全(quan)。