当前查询到3条专利与查询词 "杨横涛【EN】Lin Hang"相关,搜索用时0.4531239秒!排序方式:
发明专利:3实用新型: 0外观设计: 0
3 条,当前第 1-3 条 返回搜索页
申请号:201911165995.6 公开号:CN111008465A 主分类号:G06F30/20
申请人:【中文】中南大学【EN】CENTRAL SOUTH University 申请日:2019.11.25 公开日:2020.04.14
摘要:【中文】本发明公开了一种考虑粘聚力与内摩擦角贡献度的边坡安全系数计算方法,该计算方法描述了粘聚力与内摩擦角对边坡稳定性的影响程度及影响机理,形式简单、物理意义明确,该方法得到的稳定性计算结果与已有方法的计算结果具有相当高的吻合度,证明了所提出的双折减边坡综合安全系数定义方法的合理性和准确性,能够有效地解决现有双折减边坡综合安全系数定义方法中存在的问题与不足。本发明的计算方法提出可以反映粘聚力与内摩擦角对边坡稳定性的贡献的双折减边坡综合安全系数计算方法,利用该方法分析已有边坡算例,较高的计算精度表明了新计算方法的合理性和正确性。 【EN】The invention discloses a side slope safety coefficient calculation method considering cohesive force and internal friction angle contribution degree, which describes the influence degree and influence mechanism of cohesive force and internal friction angle on side slope stability, has simple form and definite physical significance, obtains a stability calculation result with a high goodness of fit with the calculation result of the existing method, proves the rationality and accuracy of the proposed double-reduction side slope comprehensive safety coefficient definition method, and can effectively solve the problems and the defects existing in the existing double-reduction side slope comprehensive safety coefficient definition method. The calculation method of the invention provides a comprehensive safety coefficient calculation method of the double-folded side slope capable of reflecting the contribution of cohesive force and internal friction angle to the stability of the side slope.
详细信息 下载全文

申请号:201911165946.2 公开号:CN110987661A 主分类号:G01N3/24
申请人:【中文】中南大学【EN】CENTRAL SOUTH University 申请日:2019.11.25 公开日:2020.04.10
摘要:【中文】本发明公开了一种改进Harris分布的结构面剪切损伤本构模型的方法,本发明模型能够反映岩石结构面的剪切应力‑剪切位移关系;特别是对线弹性阶段、峰前软化阶段、峰后软化阶段和残余剪切应力阶段的描述更为合理。本发明所提出的模型参数可以用数学方法确定,具有明确的物理意义,精度和严谨性更胜拟合方法;通过与试验数据和与以往模型的比较,本文提出的模型能够准确地反映结构面剪切应力‑剪切位移曲线的变化趋势,对曲线的描述更为完备,体现了模型的优越性和适用性。 【EN】The invention discloses a method for improving a structural surface shear damage constitutive model of Harris distribution, which can reflect the shear stress-shear displacement relation of a rock structural surface; in particular, the thread elasticity phase, the pre-peak softening phase, the post-peak softening phase and the residual shear stress phase are more reasonably described. The model parameters provided by the invention can be determined by a mathematical method, and the method has definite physical significance, and better precision and rigor than a fitting method; through comparison with test data and a previous model, the model provided by the invention can accurately reflect the change trend of the structural surface shear stress-shear displacement curve, the description of the curve is more complete, and the superiority and applicability of the model are reflected.
详细信息 下载全文

申请号:201911167205.8 公开号:CN110987662A 主分类号:G01N3/24
申请人:【中文】中南大学【EN】CENTRAL SOUTH University 申请日:2019.11.25 公开日:2020.04.10
摘要:【中文】本发明公开一种考虑冻融循环损伤的节理剪切强度的确定方法,针对寒区岩体节理的复杂性,本发明方法深入分析了节理连通率与剪切强度的关系,基于室内试验提出了剪切强度参数随节理连通率变化的计算公式,便于精确计算复杂节理的剪切强度。本发明基于节理试样的冻融试验和直剪试验,建立的剪切强度参数损伤演化模型,进一步推导出改进的剪切强度计算公式,此计算公式同时考虑了冻融循环的损伤累积和节理连通率的影响,可深入分析冻融循环与节理连通率耦合作用对剪切强度参数的劣化特性,根据后续试验结果,得出改进计算公式的计算结果与实验数据较高的吻合程度,表明了改进准则的合理性。 【EN】The invention discloses a method for determining joint shear strength by considering freeze-thaw cycle damage, which deeply analyzes the relation between joint connectivity and shear strength aiming at the complexity of rock mass joints in cold regions, provides a calculation formula of shear strength parameters changing along with the joint connectivity based on indoor tests, and is convenient for accurately calculating the shear strength of complex joints. The method is based on a freeze-thaw test and a direct shear test of the joint sample, the established shear strength parameter damage evolution model is used for further deducing an improved shear strength calculation formula, the calculation formula simultaneously considers the damage accumulation of the freeze-thaw cycle and the influence of the joint communication rate, the degradation characteristic of the coupling effect of the freeze-thaw cycle and the joint communication rate on the shear strength parameter can be deeply analyzed, the high coincidence degree of the calculation result of the improved calculation formula and the experimental data is obtained according to the subsequent test result, and the rationality of the improvement criterion is shown.
详细信息 下载全文

3 条,当前第 1-3 条 返回搜索页