发明名称 |
FremgangsmÕte ved festing i bakken av en dreneringsanordning samt dreneringsanordning sÕledes festet eller for en slik festing |
摘要 |
The procedure consists of installing friction elements in the form of one or more lengthwise flexible cables (6, 7) to counteract buoyancy on the inspection chamber (1). The cables extend for some 5 m on either side of fastening lugs (4). They have a stretch limit of one per cent under the force applied to the chamber, and can be metal cables enclosed in plastic sleeves, or of reinforced polymer. A variant can use galvanized iron or plastic sheets in place of the cables. |
申请公布号 |
NO985289(A) |
申请公布日期 |
1999.05.21 |
申请号 |
NO19980005289 |
申请日期 |
1998.11.13 |
申请人 |
ALPHACAN |
发明人 |
CIPRIANI, MARTIAL;DURAND, MICHEL |
分类号 |
E02D29/12;E02D31/12;E03F5/02 |
主分类号 |
E02D29/12 |
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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