模袋筑坝沉降分析

The Theoretical Analysis of the Settlement Amount of the Dam

土工模袋筑坝的沉降对工程的稳定性有重要影响。为得到土工模袋在工程实践中的沉降量与时间的对应关系,运用沉降量与太沙基一维固结理论及固结度之间的联系,建立沉降量与时间的方程。在已经建立的模袋袋体方程的基础上,根据单个模袋不同高度的充填物所受压力的不同,得到压力与高度的关系曲线,可得随着土颗粒所处的深度的增加其所受的压应力越大,但自身所受的压应力与外压应力相比可忽略不计,通过对压力的积分,再运用太沙基一维固结原理,以此来分析土工模袋自身沉降量与时间的联系。根据建立的方程,分析了多层模袋总沉降与时间的关系,对模袋在筑坝等工程中处于不同时间内的沉降提供了理论指导。

The subsidence of earthwork die bag has important influence on the stability of engineering. For geotechnical mold bag in the engineering practice,the relation between settlement and time using the settlement and the too until a one-dimensional consolidation theory and the connection between the degree of consolidation,establish a settlement with the equation of time. In established mold bag equation on the basis of the body,according to a single bag of different height of different fillings are pressure,pressure and the height of the curve,can be increased with the increase of the depth of the soil particles are suffered by the compressive stress,the greater the but its compressive stress and compressive stress of negligible compared,based on pressure integral,reapply too him one dimensional consolidation theory,to analyze geotechnical mold bag subsidence quantity and time. According to the established equation,the relationship between the total settlement and time of the multilayer mold bag is analyzed,and the theoretical guidance is provided for the settlement of the mold bag in the construction of dam and other projects.