水力发电2025，Vol.51Issue(8)：60-66,7.
考虑时变特性的大流量涌水灌浆材料抗冲性能数值模拟
Numerical Simulation of the Anti-scour Performance of Large-flow Water Inflow Grouting Material Considering Time-varying Characteristics
摘要
Abstract
The grouting material is required to have excellent anti-scour performance for dealing with leakage and blockage under large-flow water inflow.These materials typically have a high viscosity and can solidify rapidly within a short time,showing significant time-dependent characteristics.Based on the development of two new types of grouting materials,HSC and HPSC,a quantitative analysis of anti-scour performance under various hydraulic scour conditions is conducted using multi-physical field coupled numerical simulations.The results indicate that the HSC and HPSC grouting materials have the characteristics of short setting time and rapid viscosity growth,and can be used for plugging and treatment of large flow inflows.At a small flow rate(0.15 m3/(s·m)),HPSC is close to that of HSC slurry,and there is no significant difference in impact resistance.Under the condition of high flow rate(0.75 m3/(s·m)),with the extension of the scouring time,the decrease of HPSC slurry is smaller and the difference with HSC and ordinary cement slurry gradually increased,and the grout comparison is 18.9%,9.2%and 8.0%after 360 seconds of scouring,respectively.In summary,the HSC slurry can meet the impact resistance requirements under small flow rates and has good groutability.The HPSC slurry with short coagulation time and stronger impact resistance can be applied to grouting and plugging in the leakage area of large-flow water inflow,but it is necessary to pay attention to its groutability.关键词
大流量涌水/灌浆材料/时变性/抗冲性能/数值模拟/HSC/HPSCKey words
large-flow water inflow/grouting material/time-varying characteristic/anti-scour performance/numerical simulation/HSC/HPSC分类
建筑与水利引用本文复制引用
张宝增,赛冬拉·马学义,江志安,崔溦..考虑时变特性的大流量涌水灌浆材料抗冲性能数值模拟[J].水力发电,2025,51(8):60-66,7.基金项目
国家自然科学基金资助项目(52479131) （52479131）
