软岩巷道变形的相似模型试验与计算方法的研究

【作者】 李运来；

【导师】 刘全林；

【作者基本信息】 安徽理工大学 ， 结构工程， 2005， 硕士

【摘要】 本文采用岩体的粘弹性力学介质模型,研究了粘弹性巷道围岩的流变特征,给出了在支护反力为常量时包括粘弹性围岩特征曲线及其时间效应的闭合解,并探讨了支护时机在围岩—支护系统中的作用及其表示方法,结合实际进行了计算分析。以泥质软岩为原型,配制了软岩相似材料并进行流变性能的测试。通过改装的平面应变模型加载装置,采用自行配制的软岩相似材料,试验研究了软岩巷道平面应变模型的受力与变形特征,取得一些实测数据,通过推广到原型,对理论分析结果进行了验证。本文的结论可供工程设计和工程施工等人员的参考。更多还原

【Abstract】 In this paper, creep behaviour of ciscoelastic rock masses surrounding linings, emlioyed a mechanics of ciscoelastic model is studied, a closed-form solution, including their feature curve and its time-dependent effect, with constant reaction of support is derived, with some analysis of practice example in-situ, and discussion of the affect of supporting opportunity and its digram in the system of rock mass-support in this paper are studied. With the soft rock of mire quality is for the prototype, prepared the soft rock to resemble the material and proceed the test change the function.Pass the flat surface refitting to adapt to changes the model to add to carry to equip, adopt by oneself the soft rock that prepare resemble the material, and experimented to study the flat surface of soft rock tunnel to adapt to changes the suffering of model the dint with transform the characteristic, and obtain the some real data, and pass to expand the prototype, and analyzed to consequently proceeds the verificationed to theorie.Giving the verification of the theoretical analysis . The conclusion may be consulted in design and study of engineering problem.更多还原