【摘要】 总结了某堤防工程主要病险问题与安全现状，提出了相应的加固设计方案，重点对长期存在的堤身渗水问题开展灌浆防渗方案比较分析，对优选的锥探灌浆进行了较为详细的设计。在此基础上，采用饱和-非饱和、稳定-非稳定渗流有限元计算理论，对锥探灌浆防渗加固前、后的堤防开展稳定渗流场以及水位骤降工况下非稳定渗流场计算，对堤身孔压变化规律等渗流性态进行研究，并开展相应的堤坡稳定计算。结果表明，采用锥探灌浆加固后，堤身渗流量和逸出坡降明显减小，浸润线降低，防渗效果显著，且各工况下堤坡抗滑稳定安全系数提升明显。更多还原

【Abstract】 The main safety problems and reinforcement design schemes of the substandard dike of a dike project, focuses on the comparative analysis of grouting seepage prevention schemes of the dike, and designs the optimized cone probe grouting in detail. On this basis, the saturated-unsaturated, stable-unstable seepage finite element calculation theory is adopted to calculate the stable seepage field and the unstable seepage field under the condition of sudden drop of water level of the dike before and after seepage control and reinforcement by cone probe grouting, and the seepage behavior such as the variation law of pore water pressure of the dike body is studied, and the corresponding stability calculation of the dike slope is carried out. The results show that, after the reinforcement by cone probe grouting, the seepage flow and escape slope of the embankment are obviously reduced, the infiltration line is lowered, and the anti-seepage effect is remarkable, and the safety factor of anti-sliding stability of the embankment slope is obviously improved under various working conditions.更多还原