天津港易堵管黏土物理力学指标及应用

Physico-mechanical index of pipe blocking clay in Tianjin port & its application

基于天津港地区大量的易堵管黏土标准贯入试验和室内土工试验资料,应用数理统计方法,对易堵管黏土标准贯入击数与物理力学指标间的相关关系进行研究分析。结果表明:经验公式的回归系数均在0.8以上,具有较高的可靠性。研究结果经过可靠性分析验证后,为易堵管黏土通过原位测试指标来计算黏土的物理力学指标提供了可行的方法,该方法节约疏浚工程勘察费用,给类似的疏浚工程以借鉴,具有较高的实际应用价值。

Based on the great number of standard penetration tests and indoor soil geotechnical test data about the pipe blocking clay in Tianjin port, this paper studied and analyzed the correlation between the standard penetration number and physico-mechanical index of pipe blocking clay by applying the mathematical statistic method. The results show that the regression coefficients in empirical formulas all are above 0. 8 with higher reliability.After verification by reliability analysis, the research results provide a feasible method by calculating the physico-mechanical index of pipe blocking clay with the in-situ test index. It helps to cut down the cost for investigation of dredging engineering, provides reference for similar dredging engineering, and owns a higher practical application value.