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开远市大庄水库工程是云南省水利建设中填筑工程量最大的工程,也是坝基振冲处理面积最大的工程,大坝总填量为530万m3,振冲处理面积为4.7万m2。处理区为软塑状淤泥地层,深度为2～12m。振冲处理完后,采用了大型圆形承压板载荷试验对坝基进行了多桩复合地基承载力检测。由于承压板面积达5m2及7m2,在复合地基承载力检测中不常见,具有很强代表性和先进性,值得在其它水利工程复合地基承载力检测中应用与推广。
The project of Dazhuang Reservoir in Kaiyuan City is the project with the largest amount of filling in water conservancy construction in Yunnan Province. It is also the project with the largest area for vibration treatment of dam foundation. The total volume of dams is 5.3 million m3 and the area of vibration treatment is 47,000 m2. The treatment area is soft plastic silt strata with a depth of 2 ~ 12m. Vibro-impact treatment, the use of a large circular bearing plate load test on the foundation of multi-pile composite foundation bearing capacity testing. As the pressure plate area of 5m2 and 7m2, in the composite foundation bearing capacity testing is not common, has a strong representative and advanced, it is worth in other hydraulic engineering composite foundation bearing capacity testing and promotion.