在砂卵石层应用高压喷射灌浆防渗技术的研究

Anti-leakage Technique of High Pressure Spraying Giouting was Used on Gravel Base

大埔水电站应用高压喷射灌浆防渗技术在砂砾石覆盖层上进行土石围堰获得成功。施工工期短，防渗效果好，经济效益明显。认为该技术在深层强透水砂砾石基础中应用，只要选定符合该地层条件的技术参数，性质和效果都是可靠的。通过现场确定技术参数是可行的。

Dabu power-plant had been successful in applying anti-leakage new technology of high pressure spraying guniting for earth-rock cofferdam on the blanket of gravels, which shortened construction period with good anti-leakage effect and obvious economic benefit. If the selected technical coefficients fits the conditions of earth's layer, the technology has good effect in the basis of deep layer of well permeable gravels. The technical coefficients defined on the spot are feasible.