黄栗树水库大坝变形与裂缝分析

Deformation and fissures analysis of Huanglishu Reservoir Dam

根据１９９８ 年钻孔取样的试验资料，对坝体各主要填土层的变形特性作出评价，认为目前坝顶填筑层的压缩性仍然较大，应用改进分层总和法计算了原坝轴线断面不同高程的沉降的纵断面分布，计算成果说明该坝的沉降率已达３．９８％ ，左右坝头深层裂缝发生的可能性很大。

On the basis of the test data of samples drilled in 1998,an evaluation is made of the deformation characterictics of the Dam′s main embankment materials. It is considered that the compressed possiblity of the embankment material in the top of the Dam still exists at present. The improved stratification sum method is used to calculate the longitudinal section′s distribution of different elevation settlement along the previous dam axis.The calculation result showed that the sinking rate of the Dam has been 3.98%, and it was possible that fissures occur in depth at the left and right of abutment . This calculation result provides a theoretical basis for the plan to remove danger and strengthen Huanglishu Reservior, and is worthy to be a reference for design of same sort engineering.