广义应力重塑方法探讨

Methods Discussion on the Generalized Remolding Stress

应力重塑方法是通过特定的工程措施和手段,重塑土体开挖前的初始应力,使其保持稳定状态。作为一种全新的、正在发展完善的方法,它具有工艺简单、易于控制、工期短、造价低、安全可靠等特点。从理论和应用的角度提出了应力重塑方法中应用领域的扩展、重塑外力和外力边界条件的选择、实现手段的多元化等问题,并对不同重塑条件下基坑的支护进行了数值分析,证明了它的有效性。

The method of remolding stress is applied through specific measures to resume the pre-excavation soil initial stress, so as to maintain its steady state.As a whole new and developing method, it has characteristics of easy process and easy control ,low in cost, short duration,safety and good quality.As viewed from application and theory,problems such as expanding the application field, choice of external remolding forces and its boundary conditions,multi-means of application are discussed in this paper for further study.The numerical analysis of a foundation pit retaining shows that the method is effective.