厚软山坡基底排土场堆排过程中应力场演变规律

厚软山坡基底强度决定了排土场的堆排量和安全性。应用数值模拟方法来模拟堆排过程中厚软基底与排弃物边坡应力场演变特点及其变化规律,找出滑移变形的危险部位,以及塑性变形区与堆载高度之间的关系,然后再应用极限平衡法进行稳定性验算,两者结果基本一致,由此可为排土场设计提供科学依据。

Stress Fields Evolution Law in the Piling-up Process of Waste Dump of Huge Soft Hill Base

The strength of huge soft hill base decides the piling up level and safety of the waste dumpsThe numerical analysis method was used to simulate the character and law of the stress field evolution of waste dump slope and huge soft hill base in piling up processThen the dangerous positions of sliding are found out，and the relation between plastic deformation zone and piling up height is givenThen，the paper adopts the limit equilibrium method to verify its stabilityBoth of results are basically the same，thus providing a scientific basis for waste dump design