中文摘要：

跟随 2008 Ms8.0 Wenchuan 地震的地调查在四川省在四川 Province.Gravel 沉积识别了 118 个液化地点，其大多数是由在 Chengdu 平凡、邻近的 Mianyang 区域的多碎石的沉积的 underlain，广泛地被散布；因此在液化调查数据上并且在原处为石子液化 behavior.Based 的预言和评估开发一个方法是必要的测试，并且与为沙的土壤液化评估的存在过程的参考，为用动态穿入测试( DPT )的石子液化评估的基本 proccdure 与一个相应模型一起被建议，计算 formula.The 过程包含二个阶段，即，预定和 re-determination.Pre-determination 前

英文摘要：

Field investigations following the 2008 Ms8.0 Wenchuan earthquake identified 118 liquefaction sites, most of which are underlain by gravelly sediment in the Chengdu Plain and adjacent Mianyang area, in the Sichuan Province. Gravel sediment in the Sichuan province is widely distributed; hence it is necessary to develop a method for prediction and evaluation of gravel liquefaction behavior. Based on liquefaction investigation data and in-situ testing, and with reference to existing procedures for sandy soil liquefaction evaluation, a fundamental procedure for gravel liquefaction evaluation using dynamic penetration tests （DPT） is proposed along with a corresponding model and calculation formula. The procedure contains two stages, i.e., pre-determination and re-determination. Pre-determination excludes impossible liquefiable or non-liquefiable soils, and re-determination explores a DPT-based critical N120 blows calculation model. Pre-determination includes three criteria, i.e., geological age, gravel contents, gravel sediment depths and water tables. The re-determination model consists of five parameters, i.e., DPT reference values, gravel contents, gravel sediment depths, water tables and seismic intensities. A normalization method is used for DPT reference values and an optimization method is used for the gravel sediment depth coefficient and water table coefficient. The gravel liquefaction evaluation method proposed herein is simple and takes most influencing factors on gravel sediment liquefaction into account.