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学者姓名：李严严
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摘要 ：
本发明公开了一种适用于边坡动力分析的地震动输入实现方法，包括以下步骤：S1、创建二维边坡有限元模型，赋予材料参数，进行网格划分；S2、从二维边坡有限元模型中提取出边界节点坐标信息及边界节点控制面积；S3、根据模型边界节点信息，基于MATLAB自编程序计算获取模型左右侧边界和底边界节点粘弹性边界弹簧阻尼刚度系数；S4、根据模型边界节点信息和入射地震波位移、速度时程，基于MATLAB自编程序分别计算获取模型底边界和左右侧边界节点的等效节点荷载；S5、将计算生成的边界节点弹簧阻尼刚度系数及等效节点荷载文件以添加关键字方式写入模型文件中并提交计算，实现边坡地震动输入。本方法实现了边坡不规则模型的地震动输入，且具有很高的计算精度。
引用：
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| GB/T 7714 | 李严严 , 储著强 , 张乐 . 一种适用于边坡动力分析的地震动输入实现方法 : CN202310411870.7[P]. | 2023-04-18 . |
| MLA | 李严严 等. "一种适用于边坡动力分析的地震动输入实现方法" : CN202310411870.7. | 2023-04-18 . |
| APA | 李严严 , 储著强 , 张乐 . 一种适用于边坡动力分析的地震动输入实现方法 : CN202310411870.7. | 2023-04-18 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
本发明提供一种锚尾锥及带锚尾锥的锚杆装置，属于岩土工程防护技术领域。该锚尾锥包括锥头和锥尾，锥头包括第一端面和第二端面，锥头在第一端面和第二端面之间，直径依次递增，锥尾包括第三端面和第四端面，锥尾在第三端面和第四端面之间，直径依次递减，锥头的第二端面与锥尾的第三端面对接，形成锚尾锥，锚尾锥的中心设有锚孔，锚孔为通孔。该带锚尾锥的锚杆装置包括筋体、承载垫板、止浆塞、限位螺母和该锚尾锥，筋体顶部设有第一外螺纹，承载垫板套设于第一外螺纹上，承载垫板被限位螺母和止浆塞夹持于中间；锚尾锥设置于筋体的底部，承载垫板、止浆塞、限位螺母的中心通孔与锚孔对中。该锚尾锥具有自锁功能，该锚杆装置能够增加锚固力。
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| GB/T 7714 | 郑宏 , 李严严 , 张志红 et al. 锚尾锥及带锚尾锥的锚杆装置 : CN202211353879.9[P]. | 2022-11-01 . |
| MLA | 郑宏 et al. "锚尾锥及带锚尾锥的锚杆装置" : CN202211353879.9. | 2022-11-01 . |
| APA | 郑宏 , 李严严 , 张志红 , 林姗 . 锚尾锥及带锚尾锥的锚杆装置 : CN202211353879.9. | 2022-11-01 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
本实用新型提供一种锚尾锥及带锚尾锥的锚杆装置，属于岩土工程防护技术领域。该锚尾锥包括锥头和锥尾，锥头包括第一端面和第二端面，锥头在第一端面和第二端面之间，直径依次递增，锥尾包括第三端面和第四端面，锥尾在第三端面和第四端面之间，直径依次递减，锥头的第二端面与锥尾的第三端面对接，形成锚尾锥，锚尾锥的中心设有锚孔，锚孔为通孔。该带锚尾锥的锚杆装置包括筋体、承载垫板、止浆塞、限位螺母和该锚尾锥，筋体顶部设有第一外螺纹，承载垫板套设于第一外螺纹上，承载垫板被限位螺母和止浆塞夹持于中间；锚尾锥设置于筋体的底部，承载垫板、止浆塞、限位螺母的中心通孔与锚孔对中。该锚尾锥具有自锁功能，该锚杆装置能够增加锚固力。
引用：
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| GB/T 7714 | 郑宏 , 李严严 , 张志红 et al. 锚尾锥及带锚尾锥的锚杆装置 : CN202222901048.2[P]. | 2022-11-01 . |
| MLA | 郑宏 et al. "锚尾锥及带锚尾锥的锚杆装置" : CN202222901048.2. | 2022-11-01 . |
| APA | 郑宏 , 李严严 , 张志红 , 林姗 . 锚尾锥及带锚尾锥的锚杆装置 : CN202222901048.2. | 2022-11-01 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
本发明公开了一种岩质边坡渐进式破坏的建模方法，采用UDEC软件对岩质边坡的破坏进行分析，主要分为两部分，第一步是建立边坡的蠕变模型，通过蠕变模型分析边坡在重力作用下的变形过程，获取边坡内部的贯通性破坏面。第二步是建立边坡的运动模型，根据蠕变模拟结果，提取边坡变形后的坡面线和贯通性破坏面，用与研究岩质边坡破坏后的继续运动。本发明从岩质边坡变形的时间效应出发，利用蠕变模型模拟边坡在长期重力作用下的变形过程，并将变形过程与失稳后的运动过程相结合，更好的对渐进式破坏的岩质边坡进行分析研究。
引用：
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| GB/T 7714 | 李严严 , 冯旭阳 . 一种岩质边坡渐进式破坏的建模方法 : CN202210659934.0[P]. | 2022-06-13 . |
| MLA | 李严严 et al. "一种岩质边坡渐进式破坏的建模方法" : CN202210659934.0. | 2022-06-13 . |
| APA | 李严严 , 冯旭阳 . 一种岩质边坡渐进式破坏的建模方法 : CN202210659934.0. | 2022-06-13 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
本发明公开了一种基于离散元与合成岩体技术的岩质边坡建模方法，首先，现场采集裂隙数据，求取裂隙分布函数；现场采集岩块与含裂隙岩块样本进行室内力学试验得到岩块与裂隙的力学参数；利用边坡剖面建立离散元边坡模型；利用裂隙分布函数构建边坡离散裂隙网络模型DFN，将离散元边坡模型与裂隙网络模型组合；最后模拟与实验室相同的力学试验，对照宏观力学参数对颗粒间的接触的细观参数进行标定，将标定结果用到组合模型中，裂隙岩体边坡模型建模完成。本发明充分考虑到裂隙的离散性与裂隙岩体的力学特性，真实反映现实中裂隙的空间分布特征，模型可用于边坡稳定性分析及滑坡运动过程反演等问题时，结果较现有技术真实可靠。
引用：
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| GB/T 7714 | 李严严 , 王瑞 , 姚爱军 et al. 一种基于离散元与合成岩体技术的岩质边坡建模方法 : CN202210239825.3[P]. | 2022-03-12 . |
| MLA | 李严严 et al. "一种基于离散元与合成岩体技术的岩质边坡建模方法" : CN202210239825.3. | 2022-03-12 . |
| APA | 李严严 , 王瑞 , 姚爱军 , 张志红 , 张乐 . 一种基于离散元与合成岩体技术的岩质边坡建模方法 : CN202210239825.3. | 2022-03-12 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Underground excavation often encountered rock masses embedded with pre-existing fractures. Conventional excavation analysis was generally based on a continuum description. In this study, to investigate the influence of randomly distributed discrete fractures on underground excavation, a finite element modeling approach based on a three-dimensional (3D) discrete fracture network (DFN) was utilized. The influence of fracture parameters including fracture intensity, dip angle and strike on the surrounding rock stability was considered in the simulation. The results suggested that fractures caused complexity in terms of the deformation behavior of rock masses around the underground cavern, facilitated the instability of surrounding rock. The intensity, dip angle and strike of fractures had different effects on the stress, displacement and failure modes of the jointed rock masses. The fracture intensity mainly affected the magnitudes of the induced stress and displacement of surrounding rock masses: a larger stress concentration and heterogeneous distribution were more likely to occur in rock masses with lower fracture intensity. While the dip angle and strike of fractures showed more impact on the distribution of displacement and failure modes of surrounding rock masses, especially for those on the roof and sidewall.
关键词 ：
In-situ stress In-situ stress Fracture Fracture Discrete fracture network Discrete fracture network Surrounding rock stability Surrounding rock stability
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| GB/T 7714 | Wei, Siyu , Li, Yanyan , Shang, Yanjun et al. Stability analysis of fractured rock mass around underground excavations based on a three-dimensional discrete fracture network [J]. | ENVIRONMENTAL EARTH SCIENCES , 2022 , 81 (3) . |
| MLA | Wei, Siyu et al. "Stability analysis of fractured rock mass around underground excavations based on a three-dimensional discrete fracture network" . | ENVIRONMENTAL EARTH SCIENCES 81 . 3 (2022) . |
| APA | Wei, Siyu , Li, Yanyan , Shang, Yanjun , Sun, Yuanchun , Li, Kun . Stability analysis of fractured rock mass around underground excavations based on a three-dimensional discrete fracture network . | ENVIRONMENTAL EARTH SCIENCES , 2022 , 81 (3) . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Large-scale landsliding is an extremely important geological process in shaping landscapes in the Tibetan Plateau. In this research, an ancient river-damming landslide with an estimated debris volume of 4.9 x 10(7) m(3), located in the upper Jinsha River, SE Tibetan Plateau, was studied. The landslide once formed a dam over 60 m high and blocked the river. Lacustrine sediments, composed of silty clay with particle sizes of 0.002-0.25 mm, are intermittently distributed along both banks, extending about 6.5 km upstream. The OSL dating indicates that the lacustrine sediments have an age of 2.6 +/- 0.2 ka. Detailed field investigation and theoretical analysis was performed to investigate the characteristics, potential cause and mechanism of the landslide. The results suggest that the landslide was most likely triggered by buckling of planar rock slabs under gravity. It may start as a translational sliding along the weak interlayer composed of mica schist at the upper part of the slope and then formed buckles by curving amphibolite rock beds near the slope toe. The hillslope has still been affected by gravitational deformations, with geomorphology characterized by tension cracks, buckle folds, and small landslide scars distributed on the slope surface, suggesting that the evolution of the river valley caused by buckling deformation has not achieved equilibrium.
关键词 ：
Buckling Buckling Tibetan Plateau Tibetan Plateau Lacustrine sediments Lacustrine sediments Landslide dam Landslide dam
引用：
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| GB/T 7714 | Li, Yanyan , Feng, Xuyang , Yao, Aijun et al. A massive ancient river-damming landslide triggered by buckling failure in the upper Jinsha River, SE Tibetan Plateau [J]. | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT , 2021 , 80 (7) : 5391-5403 . |
| MLA | Li, Yanyan et al. "A massive ancient river-damming landslide triggered by buckling failure in the upper Jinsha River, SE Tibetan Plateau" . | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 80 . 7 (2021) : 5391-5403 . |
| APA | Li, Yanyan , Feng, Xuyang , Yao, Aijun , Lin, Shan , Wang, Rui , Guo, Mingzhu . A massive ancient river-damming landslide triggered by buckling failure in the upper Jinsha River, SE Tibetan Plateau . | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT , 2021 , 80 (7) , 5391-5403 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Evaluation of the structural similarity or structural domains is a fundamental step for characterizing fractured rock masses. In this research, the division of rock masses into structural domains is treated as a multi-parameter clustering problem. The fuzzy spectral clustering method is used and proved to be an effective approach for measuring the structural similarity of jointed rock masses, in which six fracture parameters (i.e., orientation, aperture, roughness, fracture intensity P-20, filling, and groundwater condition) are selected. The results suggest that the study area, located at the Songta dam site of China, could be grouped into three structural domains based on over 1300 fractures collected from 6 adjacent exploration tunnels. The results of the proposed method are validated by the Kolmogorov-Smirnov statistical test through quantifying the degree of similarity between fracture parameters collected from different areas. The results show that the fuzzy spectral clustering could provide reliable results which agree well with those obtained by the Kolmogorov-Smirnov test. Moreover, compared with the K-means algorithm, the new method could perform better in identifying structural domains.
关键词 ：
Kolmogorov-Smirnov test Kolmogorov-Smirnov test Multiple fracture parameters Multiple fracture parameters Structural domain Structural domain Fuzzy spectral clustering Fuzzy spectral clustering
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| GB/T 7714 | Li, Lihui , Li, Yanyan , Chen, Jianping . Evaluation of the structural similarity of fractured rock masses based on multiple fracture parameters [J]. | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT , 2021 , 80 (3) : 2189-2198 . |
| MLA | Li, Lihui et al. "Evaluation of the structural similarity of fractured rock masses based on multiple fracture parameters" . | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 80 . 3 (2021) : 2189-2198 . |
| APA | Li, Lihui , Li, Yanyan , Chen, Jianping . Evaluation of the structural similarity of fractured rock masses based on multiple fracture parameters . | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT , 2021 , 80 (3) , 2189-2198 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
本发明公开一种人工填料最优级配确定方法，基于分形理论和最大密实度，通过引入级配参数，提出了在确定填石料总质量、最大粒径、可测得的最小粒径及小于可测最小粒径的填料质量后，根据本方法可确定一条级配曲线，该级配为连续级配并满足最大密实度，为该粒径范围内的最优级配。适用于土木工程粗粒土、巨粒土、岩石等作为填充物的最优级配计算。
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| GB/T 7714 | 张志红 , 杨凡 , 姚爱军 et al. 一种人工填料最优级配确定方法 : CN201910050815.3[P]. | 2019-01-20 . |
| MLA | 张志红 et al. "一种人工填料最优级配确定方法" : CN201910050815.3. | 2019-01-20 . |
| APA | 张志红 , 杨凡 , 姚爱军 , 李立云 , 李严严 . 一种人工填料最优级配确定方法 : CN201910050815.3. | 2019-01-20 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
This paper presents a method for reconstructing denudation in sedimentary basins. The principle of this method is to use the Kaiser effect involving the acoustic emission (AE) of rock samples under a uniaxial load test. Based on the proposed method, the denudation thickness since the Late Cretaceous period in the southeastern margin of the Ordos Basin in China was estimated. The results showed that the denudation increased gradually from the northwest (1600 m a.s.l) to the southeast (1800 m a.s.l) of the study area. A comparison of the denudation results with those obtained from other methods illustrated that the AE method was reliable and easy to use. Finally, using computer simulation, we analyzed the influence of strata denudation and ground topography on the current in situ stress. The results suggested that due to the denudation, the horizontal stress played a dominant role in the distribution of the in situ stress of the study area, but the in situ stress could be reduced by the uplifted movement of the ground. The analysis could facilitate future applications of the AE method and improve understanding of the basin stress field.
关键词 ：
acoustic emission (AE) acoustic emission (AE) lateral pressure coefficient lateral pressure coefficient Ordos Basin Ordos Basin denudation reconstruction denudation reconstruction
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| GB/T 7714 | Wei, Siyu , Shang, Yanjun , Li, Yanyan . Application of Acoustic Emission to Estimation of Strata Denudation: A Case Study from the Ordos Basin, China [J]. | SUSTAINABILITY , 2019 , 11 (3) . |
| MLA | Wei, Siyu et al. "Application of Acoustic Emission to Estimation of Strata Denudation: A Case Study from the Ordos Basin, China" . | SUSTAINABILITY 11 . 3 (2019) . |
| APA | Wei, Siyu , Shang, Yanjun , Li, Yanyan . Application of Acoustic Emission to Estimation of Strata Denudation: A Case Study from the Ordos Basin, China . | SUSTAINABILITY , 2019 , 11 (3) . |
| 导入链接 | NoteExpress RIS BibTex |
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