CAJ | 학술논문

水利工程施工过程中，经常会遇到水工建筑物直接修建在砂砾石地层上，为了提高砂砾石地层的整体性、密实性并降低其透水率，一般需要对坝基采取全面的固结灌浆，必要时也在坝基上、下游一定范围内进行固结灌浆。结合水利枢纽的工程实践，对泄洪冲沙闸底板进行全面的固结灌浆处理，施工过程中采用自上而下分段灌浆方法，对现有的钻探与灌浆工艺技术进行优化组合，最终经灌后质量检查，结果满足深厚砂砾石覆盖层固结灌浆的设计要求，取得了良好的效果。
수리공정시공과정중，경상회우도수공건축물직접수건재사력석지층상，위료제고사력석지층적정체성、밀실성병강저기투수솔，일반수요대패기채취전면적고결관장，필요시야재패기상、하유일정범위내진행고결관장。결합수리추뉴적공정실천，대설홍충사갑저판진행전면적고결관장처리，시공과정중채용자상이하분단관장방법，대현유적찬탐여관장공예기술진행우화조합，최종경관후질량검사，결과만족심후사력석복개층고결관장적설계요구，취득료량호적효과。
In the construction of hydraulic engineering projects ,the hydraulic structures are often directly built on the sand gravel stratum .In order to improve the integrity of sandy gravel stratum and reduce its permeability ,it is common to apply comprehensive consolidation grouting on the dam foundation ,sometimes consolidation grouting is also carried out in a certain range of the upstream and downstream of the dam foundation when necessary .In the construction of an engineer-ing project ,the comprehensive consolidation grouting was applied on the floor of the outlet sluice with descending stage grouting method during the construction process .This method combined the advantages of the existing drilling and grout-ing techniques and reached a optimum combination .The result of the quality inspection indicates that the outcome not on-ly meets the specifications of consolidation grouting of deep sand gravel stratum ,but also has excellent performance .