梯形抗滑桩挡土板的结构设计和工作原理

The Architectural Design and Operational Principle of Trapezoidal Retaining Plate

在抗滑桩工程应用中,桩间土体粘聚力不足会导致桩间土体流出,造成抗滑桩失效,所以需要挡土板阻挡桩间土体流出。但现有抗滑桩挡土板无法有效利用土体与抗滑桩之间土拱效应,针对这一点,设计了一种梯形挡土板,利用梯形挡土板特有结构,产生连续土拱效应,可以有效地将滑坡推力传递到抗滑桩桩后,同时阻止抗滑桩桩后松散土体从桩间流出,该结构施工简便、耗材少且稳定性强。

In the application of anti-slide pile engineering, the insufficient cohesion of the soil between the piles will cause the soil between the piles to flow out, resulting in the failure of the anti-slide piles. Therefore, the retaining plates are required to block the soil outflow between the piles. However, the existing anti-slide pile retaining plate can not effectively use the soil arching effect between the soil and the anti-slide pile. In response to this, a trapezoidal retaining plate is designed, which uses the unique structure of the trapezoidal retaining plate to produce a continuous soil arching effect. The landslide thrust can be effectively transmitted to the anti-slide piles, and the loose soils are prevented from flowing out of the piles after the anti-slide piles. The structure is simple in construction, low in consumables and strong in stability.