| 摘要 |
<p>PROBLEM TO BE SOLVED: To eliminate apprehension forming a new looseness region, in addition to no requirement of excavation removal work and its incidental various works of timbering material removal or the like in a looseness region of the ground, so as to simply surely obtain a stop water effect by a set up process high effi cient at a low cost. SOLUTION: This stop water plug 20 comprises a stop water bore hole 22 radially provided toward a cavity outward from a cavity inner wall surface 21a along a cavity internal periphery in a stop water region 21, stop water material 23 for the stop water bore hole with which the inside of the stop water bore hole 22 is filled, and a filling member 24 fill sealing inside the stop water region 21 while water-tightly integrally formed with the stop water bore hole 22.</p> |
