中文摘要：

生活垃圾炉渣可以作为新型路基材料使用,为研究含水率对其强度特性的影响,首先对其材料特性进行分析,其次对含水率10%～20%范围内的垃圾炉渣进行超声波波速试验、饱和三轴固结排水剪切试验及无侧限抗压强度试验.结果表明：垃圾炉渣的主要成分为SiO_2,最佳含水率约为15.5%,最大干密度约为1.52g·cm（-3）,属于级配良好砾类土;含水率对垃圾炉渣的强度具有影响,含水率10%～20%范围内的垃圾炉渣的超声波波速、最大主应力差及单轴抗压强度随初始制样含水率的增加表现为先增加后减小的趋势,含水率约15%时达到峰值;基于弹性理论,得到了不同含水率时炉渣的泊松比、粘聚力及单轴抗压强度的关系,可为深入分析炉渣的强度特性提供理论依据.

英文摘要：

Since Municipal Solid Waste Incineration （MSWI） bottom ash can be used for a new roadbed material, in order to study the influence of water contents on the strength properties of MSWI bottom ash, the material characteristics were firstly examined. The ultrasonic wave velocity tests, saturated consolidated drained triaxial compression tests, and unconfined compressive strength tests were carried out within the water contents range of 10% to 20%. The results show that the main components of MSWI bottom ash is SiO2, and the best moisture content is about 15. 5% with the largest dry density of about 1.52 g · cm-3 , which are for well graded gravel soils. Meanwhile, the water content shows significant influence on the strength of MSWI bottom ash, where the ultrasonic wave velocities, uniaxial compressive strength and maximum principal stress difference firstly increase with the water increasing contents, and then gradually decrease, which reaches the maximum values with a water content of approximately 15%. Based on the elastic theory, the relationship between the Poisson＇s ratio, cohesive force and uniaxial compressive strength of MSWI bottom ash under condition of different water contents was obtained, which provides theoretical basis for further analysis on the strength of MSWI bottom ash.