| 摘要 |
<p>PURPOSE:To fix a buried pipe completely by excavating a burying groove to locate a buried pipe, and mixing a binder made by blending 180-240kg cement per 1m<2> excavated soil with CMC, sodium silicate and calcium chloride at a prescribed proportion, with 2.5-5.0% cement in weight to back-fill it as consolidation soil. CONSTITUTION:A burying groove 2 is excavated, and a buried pipe 3 is located inside the groove 2. A binder made by blending 180-240kg cement per 1m<2> excavated soil 4 with 30-40% CMC in weight, 30-35% sodium silicate in weight and 30-35% calcium chloride in weight is mixed with 2.5-5.0% cement in weight to form consolidation soil 5. About 10cm thick consolidation soil 5 is back-filled in groove bottom 2A, and the surface of the groove bottom 2A at both the sides of the buried pipe 3 is completely covered and consolidated to fix the buried pipe 3. Next the excavated soil 4 is back-filled to bury the burying groove 2. The consolidation soil 5 is completely hardened, and it is thus possible to fix the buried pipe completely.</p> |
