| 摘要 |
The invention relates to a hollow element (10, 20, 30, 40, 50) designed to be inserted into soft soil (38, 48, 58), and open at least on the lower end thereof, such that when said hollow element (10, 20, 30, 40, 50) is inserted in the soft soil (38, 48, 58), the inside thereof is filled with said existing soft soil (38, 48, 58). Said hollow element comprises a cylindrical geogrid (11) designed to allow the circulation of water therethrough, a geosynthetic material (12) which covers the outer surface of the geogrid (11) and has a filter function, allowing water to pass through but not the existing soft soil particles (38, 48, 58), and at least one geosynthetic material (13) which covers the inner surface of the geogrid (11) and has a double function: it allows water to pass through but not the soft soil particles (38, 48, 58) - filter function - and it proves the hollow element (10, 20, 30, 40, 50) with a radial rigidity - resistance function. The invention also relates to a soft soil improvement method (38, 48, 58), using the hollow element (10, 20, 30, 40, 50) defined. |
