Application of Soft Rock Dam Construction Technology in Huangshigou Reservoir
The dam of Huangshigou Reservoir is designed as a clay core rockfill dam.The upstream and downstream rockfill areas are all soft rock dams with saturated compressive strength less than 30 MPa.The field rolling test determines that the rolling parameters of rockfill materials are 108 cm virtual paving,26 t vibration flat rolling static rolling 2 times+vibration rolling 10 times.The measured dry density of the rolling test reaches about 2.07g/cm3,the porosity reaches about 18％,and the permeability coefficient reaches about 8.9 x 10-2cm/s.All the indexes meet the design requirements.Up to now,the upstream rockfill has been tested for 15 times,with an average porosity of 18.36％.The downstream rockfill material was tested 10 times,and the average porosity was 18.28％.Soft rock dam construction to do a good job on the dam material quality inspection,timely adjustment of blasting parameters,to ensure that the dam material grading,strength qualified.
万方数据
维普
