Ground pressure balance type ground sampler |
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| 申请号 | JP5589184 | 申请日 | 1984-03-23 | 公开(公告)号 | JPS60200143A | 公开(公告)日 | 1985-10-09 |
| 申请人 | Kiso Jiban Consultant Kk; | 发明人 | SAKAI KAZUO; | ||||
| 摘要 | PURPOSE:To make it possible to collect a specimen in such a state that the natural state of the ground is held, by reducing the friction resistance between the specimen and a sampler inner wall by the fluid injected in the specimen when a sampler is inserted into the ground under pressure and solidifying said specimen. CONSTITUTION:Pressure corresponding to vertical underground stress is preliminarily applied to the ground by the piston 7 in the shoe 6 provided to the leading end of a sampler while pressure corresponding to horizontal underground pressure is preliminarily applied thereto by a fluid 4 and the sampler is further inserted into the ground under pressure to cut the ground. Whereupon, the specimen 8 in a receiving pipe 5 is automatically pressurized from the side surface thereof by the fluid 4 and held to the same state as the stress in the natural ground. When the sampler is drawn up above the ground after the fluid 4 being a grout material is solidified, the greater part of the specimen 8 is covered with the solidifying agent and, therefore, the natural state of the ground can be held. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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