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冰上钻探与水上钻探比较起来,施工简单,搬运方便,安全感强,常被辽宁、吉林、黑龙江、新疆等省的水利水电部门修建拦河坝时采用。现将冰上作业的一点体会分述如下:一、冰上钻探的钻场安装与保温拦河坝的工程地质钻孔一般很浅,工期多为5—10天,故不可安装过于复杂的钻场,而且由于钻场泥水很多,整体钻场很容易被冻结在冰面,很难松动,对整体搬家不利,故宜采用简易钻场。用铁锥在冰面扎几个10厘米左右深的孔,埋以木杆,浇水,冻结而立,上捆以横杆,围上棉帐篷、帆布,只有钻架顶露以“天窗”,以排放烟雾。冰面铺设基枕木,浇水将枕木与冰面冻结,上面同样铺设地板,作为钻场与冰面的隔热层。
Compared with water drilling, ice drilling is simple, easy to handle and strong in safety. It is often used by water conservancy and hydropower departments in Liaoning, Jilin, Heilongjiang and Xinjiang provinces to build barrages. Now a little experience of ice work are as follows: First, the drilling of ice drilling installation and insulation Barrage engineering geology drilling is generally shallow, duration is 5-10 days, it can not be installed too complicated drilling field, And because drilling muddy lot, the overall drilling is very easy to freeze in the ice, it is difficult to loose, the whole move unfavorable, it is appropriate to use simple drilling. Iron cone with a few 10 cm deep hole in the ice bar, buried wood, watering, frozen standing, tied to the bar, surrounded by cotton tents, canvas, To emit smoke. Laying ice on the base of the sleeper wood, watering the sleepers frozen with ice, the same laying the floor above, as drilling and ice insulation.