穿黄工程北岸砂基抗液化处理措施研究

南水北调中线穿黄(河)工程处于7度地震区。北岸明渠地基存在深厚砂层，砂基的抗震液化问题是设计中需要研究处理的关键技术问题。为此，进行了大量的现场标准贯入试验、室内动三轴试验和地震反应分析，以判别液化的深度、范围及确定优化的处理措施。简要介绍了试验及数值分析的研究情况及主要的研究结论。

Anti-liquefaction reinforcement studies for sandy foundation at northern bank of water transfer project across Yellow River

Water Transfer Project across the Yellow River is located at the area measuring at 7 grade of Richter scale. At the northern flood plain of the Yellow River, the water canal will be established on a thick sand ground. The liquefaction prevention of sand under earthquake is a key technical problem taken into account in design. To estimate the possible liquefaction depth of the foundation and to find an optimal reinforcement measure, large amount of field standard penetration tests, dynamic triaxial tests and dynamic numerical analysis were performed. The work of tests and numerical analytical and main conclusions are introduced in this paper.