土坝坝体劈裂灌浆浆液固结分析

Analysis of Slurry Consolidation of Splitting Grout of Earth Dam

通过对若干土坝劈裂灌浆现场试验资料的分析，论述了浆液固结的机理及其影响因素。在此基础上，依据土坝坝体劈裂灌浆浆液固结的实际情况，提出了以下观点：浆液在灌浆期是渗透力作用下的固结过程，在回弹期是坝体侧向压力作用下的固结过程。并分别建立了灌浆期和回弹期浆体固结数学模型，用有限差分法对影响浆体固结的几种因素进行了分析。

Through investigation and analysis of the data for several in-situ splitting grout experiments ofeanh dam,the mechanism of slurry consolidation and its affecting factors are discussed. According tothe actual situation of slurry consolidation in the splitting grout of earth dam,this paper puts forwardthat slurring consolidation in the grouting period is a consolidating process under the action of penet-rating force,while that in the elastic rebound period is a consolidating process under the action of later- al pressure in dam body. Mathematical models of slurry consolidation in grouting period and in elasticrebound period are established separately and factors which affect slurry consolidation are analyzed us-ing the method of finite difference.