电渗排水固结的设计理论和方法  

Theory and design method for electro-osmotic consolidation

作　　者：庄艳峰[1] 

机构地区：[1]武汉大学土木建筑工程学院,湖北武汉430072

出　　处：《岩土工程学报》2016年第S1期152-155,共4页Chinese Journal of Geotechnical Engineering

基　　金：国家自然科学基金项目(41472039;51109168)

摘　　要：探讨了电渗法处理大面积深厚软土地基的若干问题,包括:电极材料、能耗、电源功率、设计理论和方法。EKG材料的出现解决了电极腐蚀和电渗能耗过高的问题,现在电渗法在大面积应用中面临的是电源功率要求过高的问题,该问题可以通过轮询通电的方法解决。依据电渗能级梯度理论提出了电渗排水固结的设计方法。时间因子和流量系数是电渗设计方法中的两个关键参数,其中流量系数具有较明显的模型尺寸效应,设计时需要进行修正。The problems of electro-osmotic consolidation for large scale deep soft ground, including electrode, energy consumption, electric power, theory and design method, are discussed. Innovation of EKG materials has solved the problems of electrode corrosion and high energy consumption in electro-osmotic consolidation. High electric power demand is currently a new challenge for large scale application of electro-osmotic consolidation, and the solution will be the roll polling program embedded in novel designed electric power source. The design method based on the energy level gradient theory of electro-osmotic consolidation is proposed. The time factor and flow coefficient are the key parameters of the design method. The flow coefficient has distinct scale effect, and it needs to be corrected before applied in the design.

关 键 词：电渗 电动土工合成材料 能级梯度理论 吹填 软基处理 

分 类 号：TU447[建筑科学—岩土工程] TU472[建筑科学—土工工程]