| 井坑应回填至检查井模板顶部 |
| 添加时间：2019/10/9 14:18:30 浏览次数： |
| 木质检查井模板装置完结并在排水管线(包含管道和检查井模板等)检验合格后应及时回填，回填前可用砂土袋、钢钎、木支撑将井体固定，回填应与管道沟槽的回填一起进行。回填时，应分层对称回填，保证支管及检查井模板发生位移契合表8的要求。井坑回填应从衔接支管、检查井模板圆周一起对称回填，支管下部必须夯实。 When the formwork device of wood inspection well is completed and the drainage pipeline (including pipelines and inspection well formwork, etc.) is qualified, it should be backfilled in time. Before backfilling, the well body can be fixed by sand bag, steel brazing and wood support. Backfilling should be carried out together with the backfilling of pipeline groove. When backfilling, it should be stratified and symmetrical backfilling to ensure that the displacement of the branch pipe and the template of the inspection well meets the requirements of Table 8. Pit backfilling should be symmetrical from the circle of connecting branch pipe and checking well template, and the lower part of branch pipe must be compacted. 每层虚铺回填土不应大于300㎜，回填每一层都使用木夯等轻型夯实东西对称夯实。回填应到达规则密实度，井坑应回填至检查井模板顶部。回填时，井坑内应无积水、不得带水回填、不得回填淤泥、有机物及冻土，回填中不得含有石块、砖块及其它硬杂物。检查井模板回填能够选用不大于20吨的碾压沿检查井模板圆周一起均匀碾压密实。 Each layer of dummy backfill should not be more than 300 tamps. Each layer of backfill should be compacted symmetrically by light tampers such as wood tampers. Backfilling shall reach the regular compactness and pit shall be backfilled to the top of the inspection well template. When backfilling, there should be no water in the pit, no backfilling with water, no backfilling with silt, organic matter and frozen soil, and no stones, bricks and other hard debris in backfilling. The backfilling of inspection well formwork can be uniformly compacted along the circle of inspection well formwork with a rolling compaction of not more than 20 tons. |
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