苗尾水电站砾质土心墙料工程特性及碾压试验

Study on Engineering Characteristics and Compaction Test of Miaowei Hydropower Station Dam's Core Wall Soil

苗尾水电站大坝高,采用宽级配砾质土作为土石坝心墙防渗料。前期对全料场进行了大量的室内工程特性试验研究,并选取有代表性的苗尾寨土料进行压实特性试验以研究填筑含水率与干密度、压实度之间关系,并据此提出了设计及施工控制标准。通过现场碾压试验,验证了该控制标准的合理性。

Using the widely graded gravelly soil as core wall anti-seepage material, the dam of Miaowei hydropower station is about 131.0m high. With lots of engineering characteristics laboratory tests carried out at the earlier stage, the representative soil got from Miaoweizhai borrow area was used to study the relationship of water content, dry density and compaction. Through this study the control standard of design and construction was put forward. Then with the site compaction test, the rationality of the control standard is verified.