三峡工程前期地质研究与施工期地质验证

本文了三峡工程前期勘察研究的几个问题，即区域稳定性及地震活动，水库工程地质，库岸稳定性，水库移民迁建工程地质，环境地质问题，水库诱发地震问题，坝址及建筑物工程的水文地质问题，天然建筑材料等，还阐述了前期主要地质结论的验证，最后，论述了对断裂构造等的认识。     

长江三峡库区梯田稳定性分析与对策*──以鄂西秭归县为例

三峡库区历史上就是滑坡、崩塌作用强烈的地带,在调查分析秭归县滑坡、崩塌对梯田稳定性的影响的基础上,探讨了四种不稳定梯田培坎的特征、性质和现状,提出了利用优势植物固土护坎等相应的对策。     

基于SLFT的边坡强度折减法失稳判据

强度折减法在评价边坡稳定性时不需要假设和搜索临界滑裂面，相对于其它方法具有一定优势，但失稳判据尚无明 确标准。滑移线场理论（SLFT） 可以计算得到的极限状态下的边坡坡面曲线（简称极限坡面曲线），已有研究表明极限坡 面曲线与边坡坡面的相对位置关系可以判断边坡稳定性。基于该结论提出一种边坡强度折减法失稳判据：不同折减系数计 算得到不同的强度参数，因此滑移线场理论计算得到的极限坡面曲线将发生变化，当极限坡面曲线与边坡坡面在坡底相离 时，判断边坡为稳定状态；当极限坡面曲线与边坡坡面相交于坡脚时，判断边坡为极限平衡状态；当极限坡面曲线与边坡 坡面相交时，判断边坡为失稳状态。对标准边坡考题的计算结果表明：提出的失稳判据收敛性较好，安全系数计算结果与 标准答案和已有失稳判据分析结论相差较小；传统失稳判据收敛指标的确定没有明确标准，当位移突变曲线光滑时很难找 到突变点，很难准确计算对应的安全系数，更重要的是传统失稳判据判断边坡极限状态受到人为主观因素的影响，而提出 的失稳判据可以实现失稳判据的客观标准化；确定的临界滑裂面形状以及在边坡中的位置都与标准答案基本一致，提出的 失稳判据适用于强度折减法。     

某滑坡区滑带土工程地质特性研究

本文论述了某滑坡滑带土的工程地质特性及其滑坡稳定性的影响，为滑坡的合理整治提供了依据。     

渗流场与应力场耦合分析在地质科学中的应用

论述了渗流场与应力场耦合分析的基本原理及其在石油勘探、成矿预测及斜坡稳定性评价中应用的理论基础和技术路线。     

Stability analysis of rock wedges with multiple sliding surfaces

Summary Although wedge and plane sliding stability analyses are well established in the geotechnical literature, certain geologic environments produce blocks which cannot be adequately modelled as either wedges or plane slides. An example is blocks forming in cylindrically folded sedimentary rocks, where the surface of sliding is neither a single plane nor a double plane but is curved. This type of block may be idealized as a prismatic block with multiple sliding planes, all with parallel lines of intersection. If the sliding planes number three or more, the distribution of normal forces, and hence the factor of safety, is indeterminate. A new analytical model for sliding stability analysis is described in which the distribution of normal forces on the contact planes is chosen to minimize the potential energy of the system. The classic wedge and plane solutions are shown to be special cases of this more general model, which allows determination of the safety factor for any shape of prismatic contact surface. An example from Tennessee concerning a block with a curved sliding surface is described and the factor of safety compared with the standard wedge analysis. It is shown that with three or more contact planes, the safety factor may be significantly lower than that calculated from the wedge model, which provides an upper limit on stability.     

煤矿采空区场地建筑适宜性工程地质研究方法

简述了煤矿采空区场地存在的工程地质问题；提出了查明采空区场地工程地质条件的现场勘察和室内模拟研究方法。并结合采空区活化特点，对采空区场地建筑适宜性作了分析；提出了地基处理和建筑物防护措施     

斜坡稳定性分析的模糊综合评判应用初探

采用两级模糊综合评判方法，在对评判实例的稳定性因素的定性分析基础上，选取主要因素四类１４项作为稳定性评价指标并将其定量化，按稳定，较稳定，较不稳定和不稳定四个级别进行综合评判，评判结果与斜坡的实际情况有较好的一致性。     

考虑入渗和蒸发影响的土坡稳定性分析方法

本研究建议的一种分析方法假定斜坡非饱和土体的水分运动参数及剪强度参数与饱和度的依赖关系均可根据实验或经验确定。通过数值计算方法妥任意给定的入渗和蒸发边界条件下斜坡土体的瞬态含水率分布及与其相对应的瞬态抗剪强度参数分布。在此基础上瞬态斜坡安全因数即可通过常规的稳定性分析方法求得。     

A Simple Parameterisation for Flux Footprint Predictions

Flux footprint functions estimate the location and relative importance of passive scalar sources influencing flux measurements at a given receptor height. These footprint estimates strongly vary in size, depending on receptor height, atmospheric stability, and surface roughness. Reliable footprint calculations from, e.g., Lagrangian stochastic models or large-eddy simulations are computationally expensive and cannot readily be computed for long-term observational programs. To facilitate more accessible footprint estimates, a scaling procedure is introduced for flux footprint functions over a range of stratifications from convective to stable, and receptor heights ranging from near the surface to the middle of the boundary layer. It is shown that, when applying this scaling procedure, footprint estimates collapse to an ensemble of similar curves. A simple parameterisation for the scaled footprint estimates is presented. This parameterisation accounts for the influence of the roughness length on the footprint and allows for a quick but precise algebraic footprint estimation.