| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of constructing an enhanced soil-cement body which improves construction performance and economical performance by performing uniform stirring and mixing even in the case of viscous soil, and an earth auger suitable for the construction. <P>SOLUTION: In the construction of an enhanced soil-cement body using an earth auger, a jet nozzle port 11 for cement-milk injection is provided in an intermediate part of a rod 6 higher than an injection position of cement-milk 13. In addition to stirring and mixing the cement-milk injected from the bit vicinity of an excavation head 4 with present position soil, the cement-milk 13 is also injected aside from the jet nozzle port 11, thereby improving stirring and mixing efficiency. Furthermore, a patch 12 is provided in an injection direction of the cement-milk 13 from the jet nozzle port 11, and an injection range of the cement-milk 13 is limited. <P>COPYRIGHT: (C)2013,JPO&INPIT |
