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南宁航务工程处在左江水利枢纽施工中 ,采用草土围堰形式进行施工导流 ,并在我区首次采用草土围堰作心墙 ,用开挖基坑废弃石碴及片石培高加固后渡汛 ,减少两条横向刚性围堰 ,取得了成功的经验。充分显示了草土围堰工程量小、工期短、造价低、渗漏少、抗震性能好等优点。
In the construction of the Zujiang River Water Control Project, Nanning Navigation Engineering Department adopts grass-soil cofferdam to conduct construction diversion. For the first time, grass-bank cofferdam is used as a heart wall in the district. After the flood, reduce the two horizontal rigid cofferdam, and achieved successful experience. It shows that grass-soil cofferdam has the advantages of small engineering quantity, short construction period, low cost, less leakage and good seismic performance.