新立城水库坝基防渗高压摆喷灌浆参数试验

新立城水库土坝坝基属于双层地基,即表层为粘性土层,下面为沙砾石层。坝基下砾质粗砂和细砾为强透水层,连续分布。因需要防渗的透水层不厚(仅2～5m),采用高压喷射灌浆封堵透水层。施工前选定与坝段同样地质条件的试验场,用实际施工的喷灌设备分不同方案进行原型试验,开挖后观察成墙效果,最后确定施工技术参数。

The test of the high pressure jet grouting parameters in Xinlicheng Reservoir Dam foundation seepage control

The foundation of Xinlicheng Reservoir Earth Dam is consisting of double layers,that is the surface is clay layer and below the gravel layer.Coarse sand and gravel and fine gravel are the high permeable layer with continuous distribution.Because the seepage control layer from Impervious to pervious layer is not thick(only 2-5m),high pressure jet grouting to plug the permeable layer is used.The test field is selected with the same geological condition as the dam before construction,the actual construction ir...