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我队自83年开始工程钻施工以来,所施工钻孔孔深多不超过40米,且10~20米的钻孔居多,故形成了基本适应浅孔工程钻的施工工艺。1985年7月下旬至8月底,我队联系承包了德州电厂的部分工程地质勘察任务,共18个钻孔,其中孔深120米的6个(包括3个地质孔),100米的10个,80米的2个。钻孔直径130毫米,全部取心(包括取样试验孔)。所用设备为XB-1000A型钻机及DPP-100-1型汽车站。通过这次施工,不仅总结出一些深孔工程钻施工经验,也发现不少问题,现简单探讨如下:
Since our team started construction in 1983, our team has not drilled more than 40 meters of drilling holes and 10 to 20 meters of drilling holes. Therefore, the construction process that basically meets the requirements of shallow hole drilling has been formed. From late July to the end of August 1985, our team contacted and contracted some of the engineering geological exploration tasks of the Texas Power Plant. A total of 18 boreholes were drilled, of which 6 (including 3 geological holes) with a hole depth of 120m and 10 , 2 of 80 meters. Drill hole diameter 130 mm, all coring (including sampling test hole). The equipment used is XB-1000A drilling rig and DPP-100-1 type bus station. Through this construction, not only summed up some deep-hole construction experience in drilling, also found many problems, is now briefly discussed as follows: