2014年3月(yue)5日，随着旋挖钻机缓缓落下，轻轨6标大(da)寨(zhai)站(zhan)第一根孔桩顺利开(kai)钻，标志着大(da)寨(zhai)站(zhan)全面(mian)施工计(ji)划已(yi)正式扬(yang)帆起航。

　　大寨站(zhan)设计里程(cheng)：YDK9+601～+813，有效(xiao)站(zhan)台中心(xin)里程(cheng)YDK9+735，主体结构采用(yong)地下两层岛(dao)式(shi)车(che)站(zhan)，两层两跨结构，车(che)站(zhan)共设4组出入(ru)口(kou)和4个风(feng)亭(ting)。基坑(keng)(keng)长212m，结构标准(zhun)宽(kuan)度为19.4m，其中YDK9+601～YDK9+716为孔桩钢(gang)支撑(cheng)支护(hu)段，长115m，深度约16～25.4m，基坑(keng)(keng)围护(hu)孔桩采用(yong)钻(zuan)孔桩，孔桩长均18.5m，共243根。采用(yong)Φ609mm×16mm的(de)钢(gang)管(guan)支撑(cheng)，共三道，现在施工的(de)是1号(hao)出入(ru)口(kou)的(de)部分(fen)孔桩。

　　大(da)(da)寨(zhai)站的(de)施(shi)工(gong)(gong)(gong)存在(zai)拆迁难(nan);道路不(bu)畅通导致大(da)(da)型施(shi)工(gong)(gong)(gong)设(she)备无法进场;工(gong)(gong)(gong)程地(di)质条件复杂等多方面困难(nan)。经过项(xiang)目部精心组织、统(tong)筹安排(pai)以(yi)及全(quan)体员工(gong)(gong)(gong)齐(qi)心协(xie)力(li)的(de)努力(li)，终于(yu)在(zai)当(dang)天(tian)上午8点开(kai)始动工(gong)(gong)(gong)了(le)，当(dang)时天(tian)还(hai)下(xia)着小雨，在(zai)该(gai)项(xiang)目的(de)施(shi)工(gong)(gong)(gong)现场，可以(yi)看见(jian)钻(zuan)(zuan)机工(gong)(gong)(gong)人(ren)(ren)正在(zai)冒雨为即将开(kai)钻(zuan)(zuan)做着最后(hou)的(de)检(jian)查工(gong)(gong)(gong)作(zuo)，钻(zuan)(zuan)机边的(de)钢筋加(jia)工(gong)(gong)(gong)厂内，几位加(jia)工(gong)(gong)(gong)人(ren)(ren)员也正在(zai)有条不(bu)紊的(de)加(jia)工(gong)(gong)(gong)大(da)(da)寨(zhai)站的(de)第(di)一(yi)个钢筋笼。本次(ci)孔桩开(kai)钻(zuan)(zuan)，项(xiang)目部首(shou)次(ci)采用了(le)“旋挖(wa)钻(zuan)(zuan)机成孔”的(de)施(shi)工(gong)(gong)(gong)工(gong)(gong)(gong)艺，引进了(le)一(yi)批新的(de)设(she)备资(zi)源，弥补了(le)以(yi)往(wang)人(ren)(ren)工(gong)(gong)(gong)挖(wa)孔的(de)不(bu)足，大(da)(da)大(da)(da)节省了(le)人(ren)(ren)力(li)资(zi)源和施(shi)工(gong)(gong)(gong)时间，也为今后(hou)的(de)施(shi)工(gong)(gong)(gong)奠定了(le)一(yi)定的(de)技术基础。随着一(yi)声鞭炮声响，轻轨6标大(da)(da)寨(zhai)站的(de)第(di)一(yi)根孔桩开(kai)钻(zuan)(zuan)了(le)。