发明名称 |
METHOD AND APPARATUS FOR IMPOUNDING FLUIDS |
摘要 |
A cavity is excavated in the earth with preferably sloping sidewalls (11-14) and a first impervious barrier or layer (20) of plastic film or sheet. One or more self-starting pumps (25) are placed at intervals along the slope and embedded in a pervious layer, such as sand, of from one to three feet in thickness. An inner impervious layer (30) which, in a preferred embodiment, is substantially thicker than the outer or first impervious layer (20) is laid over the sand and then a final layer (31) or cap of clay over the inner impervious plastic layer (30). Any seepage or leakage through the inner impervious layer (30) caused by a tear or imperfection in the plastic, flows down to the self-starting monitoring pumps (25) which, upon sensing the flow, turns itself on. The invention includes sensing the time of operation of the self-monitoring pump (25) to determine the degree of seepage. |
申请公布号 |
WO8401358(A1) |
申请公布日期 |
1984.04.12 |
申请号 |
WO1983US01563 |
申请日期 |
1983.10.05 |
申请人 |
RESSI, ARTURO, L. DI CERVIA |
发明人 |
RESSI, ARTURO, L. DI CERVIA |
分类号 |
E02B3/16;E02D19/06;(IPC1-7):65G5/00 |
主分类号 |
E02B3/16 |
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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