发明名称 |
Borehole aerostatic ground support system |
摘要 |
A method and the apparatus for implementing the method to provide temporary ground support in a mine. After an auger or other type of hole has been bored in an underground mine, at least one inflatable bladder with a fluid conduit therethrough is inserted into the hole. Once the bladder is inflated it expands to fill the hole's diameter and to act as a plug. Thereafter, fluid is forced through the fluid conduit past the bladder and into the hole cavity to act in conjunction with the bladder as a ground support for the hole. Appropriate fluid valves, meters, and conduits are placed at the input to the fluid conduit to control and measure the fluid being forced into the bladder and the hole cavity. Quick connect-disconnect couplings are provided when two or more bladders are connected seriatim and placed within the hole.
|
申请公布号 |
US4072015(A) |
申请公布日期 |
1978.02.07 |
申请号 |
US19760755917 |
申请日期 |
1976.12.30 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE INTERIOR |
发明人 |
MORRELL, ROGER J.;GUNN, JEROME A.;WILSON, RICHARD J. |
分类号 |
E21D15/48;(IPC1-7):E21D5/00 |
主分类号 |
E21D15/48 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|