| 摘要 |
PROBLEM TO BE SOLVED: To provide a sludge tank capable of storing sludge by reliably retaining the sludge erupted from the inside of the ground in soil improvement work, even in narrow ground.SOLUTION: A sludge tank includes: a cylindrical body part 20 for covering an upper part of a borehole 10 provided in improvement object ground; a top surface closing member 30 for closing a top surface of the body part 20; a rod insertion opening 31 that is provided in the top surface closing member 30; a desludging hose insertion opening that is provided in the top surface closing member 30; and an undersurface closing member 40 for closing a space between the borehole 10 and the body part 20 by covering the periphery of the borehole 10, on a lower opened surface of the body part 20.SELECTED DRAWING: Figure 1 |
