论文部分内容阅读
为了更可靠地获取场地土动剪模量,利用JB型波速仪,采用单孔法,现场对场地土分别沿1.80 m、2.80 m、3.65 m和6.65 m深度进行了波速测试,得到了场地各层土的剪切波速。此外,取出了场地各层土的原状土样,进行了室内循环单剪试验,获得了各层土的动剪模量,并与剪切波速的计算结果进行了比较分析。结果表明,由现场剪切波速试验和室内循环单剪试验得到的最大动剪模量比较接近,说明两种试验的结果都比较可信,两者可以相互验证,建议实际应用中将两者综合考虑。
In order to obtain the soil dynamic shear modulus more reliably, the wave velocity of the site soil was tested along the depth of 1.80 m, 2.80 m, 3.65 m and 6.65 m using the single-hole method with JB-type anemometer, respectively. Layer shear wave velocity. In addition, the undisturbed soil samples from all layers of the site were taken out and subjected to a single shear test in the room. The dynamic shear modulus of each layer of soil was obtained and compared with the shear wave velocity. The results show that the maximum dynamic shear modulus obtained by the field shear wave velocity test and the indoor single shear test is relatively close, indicating that the results of the two tests are credible and the two can be mutually verified. It is suggested that the combination of the two consider.