发明名称 |
A METHOD AND SYSTEM FOR INSTALLING GEOTHERMAL HEAT EXCHANGERS, ENERGY PILES, CONCRETE PILES, MICROPILES, AND ANCHORS USING A SONIC DRILL AND A REMOVABLE OR RETRIEVABLE DRILL BIT |
摘要 |
There is provided a method for drilling a cased hole and installing a micropile. A sonic drilling ap-paratus is positioned at a desired location. The sonic drilling apparatus includes a rotating and vibrating appara-tus for rotating and vibrating a drill string into the ground. A retrievable drill bit is operatively connected to the drill string. The cased hole is drilled to a desired depth by rotat-ing and vibrating the drill string into the ground. The re-trievable drill bit is retrieved from the cased hole following the drilling of the cased hole to the desired depth. A mi-cropile is lowered into the cased hole following the re-trieval of the retrievable drill bit. Grouting material may be discharged into the cased hole before or after the drill string is removed from the ground. In another embodi-ment, a removable drill bit may be used in place of the re-trievable drill bit.
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申请公布号 |
CA2716209(C) |
申请公布日期 |
2013.10.29 |
申请号 |
CA20092716209 |
申请日期 |
2009.02.20 |
申请人 |
ROUSSY, RAYMOND J. |
发明人 |
ROUSSY, RAYMOND J. |
分类号 |
E21B7/20;E02D5/34;E02D7/00;E21B7/24;E21B33/13;F24J3/08 |
主分类号 |
E21B7/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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