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Deep softrock geostress test method and device based on flow stress recovery principle

机译:基于流应力恢复原理的深部软岩地应力测试方法及装置

摘要

#$%^&*AU2013101531A420140109.pdf#####Abstract The invention discloses a method and a device for testing a geo-stress of a deep soft rock. The device comprises a connecting rod; two three-direction pressure boxes are adjacently fixed on the connecting rod; the three-direction pressure box is provided with three vertical working surfaces; a direction cosine of any two working surfaces among the two three-direction pressure boxes is not 1; a device for measuring a normal pressure stress is mounted on each working surface of the two three-direction pressure boxes; and the device is connected with a reading instrument outside a drilling hole through a data wire. The geo-stress testing method comprises the following steps of: sending the two three-direction pressure boxes to a test point after drilling; grouting the drilling hole and sealing the drilling hole after the drilling hole is entirely filled; and after grout is solidified, and substituting six pressure data measured by the two three-direction pressure boxes into a geo-stress testing principle formula after the data is stable, so asto obtain the geo-stress at the test position. With the adoption of the method, a stress value inside surrounding rocks can be directly observed, and observation data can be obtained for a long time. Therefore, the method and device provided by the invention are good for research on the geo-stress of soft rocks in a deep coal mine and the stability of a surrounding rock.
机译:#$%^&* AU2013101531A420140109.pdf #####抽象本发明公开了一种测试深软地应力的方法及装置岩石。该装置包括连杆;两个三向压力箱是相邻地固定在连杆上。提供三向压力箱具有三个垂直工作表面;任何两个工作面的方向余弦两个三向压力箱中不为1;测量设备法向压力作用在两个表面上三向压力箱;并且设备已连接读数仪器通过数据线在钻孔外面。地应力测试方法包括以下步骤:将两个三向压力盒发送到钻孔后的测试点;钻孔后灌浆并密封钻孔完全充满;灌浆固化后,用六个代替由两个三向压力箱测得的地应力数据数据稳定后的测试原理公式,以求得地应力测试位置。采用该方法后,周围的应力值可以直接观察到岩石,并且可以长时间获得观察数据。因此,本发明提供的方法和装置对研究有好处。深煤矿软岩的地应力及周围环境稳定性研究岩石。

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