摘要
通过对坝体0+090桩号及0+145桩号施工期沉降及渗流监测成果的分析,初步分析了铜场水库大坝施工期在孔隙压力水和上游水位的共同作用下,心墙内渗透水位上升和沉降量明显偏大的原因。监测成果表明:①坝体施工期沉降量偏大但沉降监测成果符合一般变化规律;②心墙碾压铺料层厚度较厚,层间结合部压实密度较低,心墙压实度较低的部位有少量水渗入;③0+090与0+145断面的倾度为0.001%～0.067%,说明心墙沉降比较均匀。
The dam seepage monitoring is the monitoring and settlement of the clay core wall dam safety monitoring of important projects.Based on the dam and 0 ＋145 0 ＋090 Stake Stake construction period settlement and seepage monitoring results of the analysis,the initial prompt the dam construction period copper field in the pore water pressure and water level upstream of the joint action of the heart wall water level rise and subsidence within the penetration obviously too large causes.Monitoring results showed that： ① the settlement amount is too large dam construction period but the settlement monitoring results are consistent with the general variation;② heart wall thickness of compacted material spread thick layer with low density of the Ministry of compaction,degree of compaction than the core wall lower parts of a small amount of water infiltration;③ 0 ＋090 and 0 ＋145 section of the inclination of 0001% ~ 0067%,indicating more uniform core wall deposition.
出处
《水电自动化与大坝监测》
2011年第6期55-58,77,共5页
HYDROPOWER AUTOMATION AND DAM MONITORING
关键词
黏土心墙坝
渗流监测
沉降监测
clay core dam
seepage monitoring
subsidence monitoring
