The design of pumped storage power stations follows the principle of"dam determined by material and soil rock balance",and it is necessary to study the use of excavated materials in the engineering area as much as possible for dam construction.A pumped storage power station is located in the sand-mudstone area.The excavation of the project produces more strong weathered rock mass or soft rock such as silty mudstone interlayer with lower strength.The authors study the design of face rockfill dam using soft rock as damming material.According to the principle of zoning,the dam body is divided into zones and the damming materials of each zone are tested and studied.The three-dimensional finite element calculation and analysis of dam slope stability and dam stress and deformation are carried out.The results show that the drainage,slope stability and deformation of the dam body meet the requirements of the specification under the condition of using more soft rock as the dam material through reasonable dam zoning.When the face rockfill dam is built with soft rock,the safety of the project can be ensured by adopting reasonable dam body partition and controlling relevant design indexes.
关键词
面板堆石坝/软岩筑坝/砂泥岩地区/抽水蓄能电站
Key words
rockfill dam with face slab/soft rock damming/sand-mudstone area/pumped storage power station
维普
万方数据