采用井下仰斜钻孔双端堵水器导高观测技术对白庄煤矿综放开采条件下，覆岩破坏规律进行了实测，得出了导水断裂带的发育高度。
Adopting survey technology of double-head water-stopped machine flowing high of upward-inclined drillhole rock destruction rules were surveyed, development height of water conducted zone was gained.
通过在大截面钢筋混凝土和钢轨抗滑桩身埋设钻孔测斜管，监测得二类抗滑桩的水平侧向位移。
The horizontal lateral displacement of reinforced concrete or rail anti-slide piles is measured by setting up borehole incline-tube in pile.
文章着重探讨孔斜成因及其不良影响，介绍了孔斜的预防和处理措施，对保证钻孔方向的重要性提出了一些建议。
The article mainly discusses the cause of ramp-hole and its blights, introduces the prevention and treatment measures, and brings forward some Suggestions to guarantee the drilling direction.
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