陆域回填区堆载作用下的围堤结构稳定性分析

Stability Analysis of Embankment Structure Under Heap Loading Action in Land Backfill Area

在淤泥质陆域回填工程中,为了掌握在堆载作用下围堤和临时围埝结构的安全情况,对背景工程所设计的围堤和临时围埝结构进行了数值模拟分析。结果表明:在堆载作用下,围堤和临时围埝结构稳定性不足,均存在受拉破裂风险。故建议设计时将临时围埝顶部适度放宽,施工中则应加强围堤不同深度的位移监测,及时掌握围堤变形情况,以采取相应措施,确保工程安全。

In order to grasp the safety situation of embankment and temporary cofferdam structures under the heap loading action in silty land backfill project,a numerical simulation analysis of embankment and temporary cofferdam structures in background engineering design is carried out in this paper.The results show that the stability of embankment and temporary cofferdam structures is insufficient under heap loading action,and there is a risk of tension rupture.Therefore,it is suggested that the design of the temporary cofferdam top section should be moderately relaxed,and the displacement monitoring at different depths of the embankment should be strengthened in construction,so as to grasp the deformation of the embankment in time and take corresponding measures to ensure the safety of the project.