论文部分内容阅读
为研究深埋的泥炭质粘土的静力和动力性能进行了静力和动力试验,进行了静力和动力试验.通过静力试验,验证了双曲线应力应变关系及邓肯—张模型也适用于泥炭质粘土,测定了邓肯—张模型参数,并发现参数k、c、随的埋深增加而增大.动力试验结果验证了Hardin和Drnevich提出的动力学模型也适用于泥炭质粘土,測定了相应的模型参数,发现参数kG.d随的埋深增加而增大.确定了在原位条件下的Gd/Gd..max-r及λ/λmax-r关系线,并与Seed建议的一般粘性土平均的关系线做了比较.发现的模量比Gd/Gd..max随剪应变幅值r增加衰减地比较慢,线性阶段可延续到剪应变幅值达到10-4.相应地,泥炭质粘土的λ/λmax-r关系线也明显地不同于Seed建议的粘性土平均的λ/λmax-r关系线.
In order to study the static and dynamic properties of deep peat clay, the static and dynamic tests were carried out, and the static and dynamic tests were carried out.The static stress tests and the Duncan-Chang model were also validated Peat clay, the parameters of Duncan-Chang model were determined, and it was found that the parameters k, c and 增 increased with the increase of burial depth.The dynamic test results verified that the kinetic model proposed by Hardin and Drnevich was also suitable for peat clay, The corresponding model parameters were found and it was found that the parameter kG.d increased with the increase of the buried depth.The relationship between Gd / Gd..max-r and λ / λmax-r under in-situ conditions was determined and compared with the suggested The average relationship between clay and clay is compared, and the found modulus ratio Gd / Gd..max decays more slowly with the increase of the shearing strain r, and the linear phase can continue until the shearing strain reaches 10-4. , The λ / λmax-r line of peat clay is also clearly different from Seed’s suggested average λ / λmax-r line for clay.