喷浆桩技术在粗砂砾砂地层中的应用

白河第三级橡胶坝直接座于河床上，饱水、强透水性。鉴于该坝水毁教训，在加长的混凝土水平防渗铺盖前缘，新增悬挂式帷幕垂直防渗措施，以便进一步达到防渗抗冲的目的。通过喷浆桩的试验及施工，说明该项技术应用于粗砂、砾砂地层中是可行的。针对施工中遇到的大量跑浆、冒浆、夹砂等难题亦进行了探讨。

Application of gunite pile technique to layer of coarse and gravelly sand

The third rubber dam of the Baihe River is directly located on the riverbed. The stratum of dam-base mainly consists of the coarse and gravelly sands. It is also saturated with water and has a strong permeability. Because the dam was ever damaged by water, a new hanged vertical curtain, which was on the verge of a longer impervious blanket concretes, was used to prevent seepage. It is proved that the technique is feasible in the coarse and gravel sands by testing and construction the gunite pile technique. The problems of outflow slurry, emitting slurry and containing sands are also discussed.