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Failure evaluation and control factor analysis of slope block instability along traffic corridor in Southeastern Tibet

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Journal of Mountain Science 2024年第6期21卷 1830-1848页

作者： liU Changqing BAO Han LAN Hengxing YAN Changgen li changbo liU Shijie School of Highway Chang'an UniversityXi'an 710064China State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China College of Geological Engineering and Geomatics Chang'an UniversityXi'an 710054China

The instability of slope blocks occurred frequently along traffic corridor in Southeastern Tibet(TCST),which was primarily controlled by the rock mass structures.A rapid method evaluating the control effects of rock mass structures was proposed through field statistics of the slopes and rock mass structures along TCST,which combined the stereographic projection method,modified M-JCS model,and limit equilibrium *** instabilities of slope blocks along TCST were then evaluated rapidly,and the different control factors of instability were *** showed that the probabilities of toppling(5.31%),planar(16.15%),and wedge(35.37%)failure of slope blocks along TCST increased *** instability modes were respectively controlled by the anti-dip joint,the joint parallel to slope surface with a dip angle smaller than the slope angle(singlejoint),and two groups of joints inclined out of the slope(double-joints).Regarding the control effects on slope block instability,the stabilization ability of doublejoints(72.7%),anti-dip joint(67.4%),and single-joint(57.6%)decreased sequentially,resulting in different probabilities of slope block ***,nearby regional faults significantly influenced the joints,leading to spatial heterogeneity and segmental clustering in the stabilization ability provided by joints to the slope ***,the stability of slope blocks gradually weakened as they approached the fault *** paper can provide guidance and assistance for investigating the development characteristics of rock mass structures and the stability of slope blocks.

关键词： Slope engineering Block instability Rapid evaluation method Rock mass structure Control factor

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水利水电工程中高强度钢筋混凝土拱坝结构设计

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现代工程科技 2024年第12期3卷 49-52页

作者：李长波山东省无棣县埕口镇政府山东滨州251900

探讨了高强度钢筋混凝土拱坝在水利水电工程中的设计关键技术及其应用效果。通过研究高强度混凝土材料特性,结合拱坝结构特点,强调了合理选择拱坝型式与尺寸优化、精细化钢筋配置与混凝土强度匹配的重要性。介绍了在施工阶段模拟、监控... 详细信息

探讨了高强度钢筋混凝土拱坝在水利水电工程中的设计关键技术及其应用效果。通过研究高强度混凝土材料特性,结合拱坝结构特点,强调了合理选择拱坝型式与尺寸优化、精细化钢筋配置与混凝土强度匹配的重要性。介绍了在施工阶段模拟、监控以及耐久性设计等方面的实践经验,并通过具体工程案例,展现了高强度钢筋混凝土拱坝结构设计在应对复杂地质条件、提高坝体安全性、减少工程量等方面的显著优势。研究结果证明,高强度钢筋混凝土拱坝设计对于实现水利工程的高效、安全和可持续发展具有重要意义。

关键词：高强度钢筋混凝土拱坝结构设计尺寸优化施工模拟监控

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Interpretations of gravity and Songliao Basin with Wavelet magnetic anomalies in the Multi-scale Decomposition

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Frontiers of Earth Science 2015年第3期9卷 427-436页

作者： changbo li liangshu WANG Bin SUN Runhai FENG Yongjing WU School of Earth Sciences and Engineering Nanjing University Nanjing 210046 China Nanjing Institute of Geology and Mineral Resources Nanjing 210016 China

In this paper, we introduce the method of Wavelet Multi-scale Decomposition （WMD） combined with Power Spectrum Analysis （PSA） for the separation of regional gravity and magnetic anomalies. The Songliao Basin is situated between the Siberian Plate and the North China Plate, and its main structural trend of gravity and magnetic anomaly fields is NNE. The study area shows a significant feature of deep collage-type construction. According to the feature of gravity field, the region was divided into five sub-regions. The gravity and magnetic fields of the Songliao Basin were separated using WMD with a 4th order separation. The apparent depth of anomalies in each order was determined by Logarithmic PSA. Then, the shallow high-frequency anomalies were removed and the 2nd-4th order wavelet detail anomalies were used to study the basin＇s major faults. Twenty-six faults within the basement were recognized. The 4th order wavelet approximate anomalies were used for the inversion of the Moho discontinuity and the Curie isothermal surface.

关键词： gravity and magnetic anomalies SongliaoBasin deep structure and geodynamics Wavelet Multi-scale Decomposition Power Spectrum Analysis

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Inversion of Moho Interface in Northeastern China with Prior Information

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Journal of Earth Science 2014年第1期25卷 146-151页

作者： Runhai Feng Ping Dong liangshu Wang Bin Sun Yongjing Wu changbo li School of Earth Sciences and Engineering Nanjing University

Non-uniqueness is always, by nature, the problem we face in inversion processes, and it is caused by the phenomenon of equivalence in field, erroneous, discrete, and finite features in obser- vation and the influence of other sources. Many authors have done lots of researches in this field in order to get more reliable outcomes, and joint inversion is a thriving one where different kinds of data are combined to derive certain information simultaneously or sequentially. One of these studies is that the prior information such as the geological, drilling and seismic data will be used as con- straints, while the inversion procedure can be controlled. In this article we use a new method with the goal of better obtaining the three-dimensional density contrast interface. This prior seismic data integrated in the inversion can play a constrained role in the procedure which means that the depth of the Moho interface at the seismic location will be restricted. It thus can provide a credible result. In order to test its effect, this program is applied in a field example--derivation of Moho geometry in Northeast China.

关键词： prior information inversion Moho seismic data.

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Experimental investigation about the incipient velocity of spherical particles on a hemispherical bed surface

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Particuology 2024年第5期88卷 49-61页

作者： Chuannan li Jie Chen changbo Jiang Xie li Zhiyuan Wu School of Hydraulic and Environmental Engineering Changsha University of Science & TechnologyChangsha 410114China Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province Changsha 410114China Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province Changsha 410114China

The sediment particles play a huge role in shaping the bed load *** this research,240 water-tunnel experiments are carried out to investigate the incipient velocity of the observation particles in two particle *** accurately predict the incipient velocity of the observation particles,the equation is conceived by the rolling instability *** incipient velocity equations and experimental data are used to analyze the trend of dispersive pressure and the effect of arrangement position on *** find that it is appropriate to choose the coefficient of drag as 0.261 and the coefficient of lift as 0.198 for the incipient velocity equation of spherical particles on the hemispherical bed ***,the dispersive pressure is closely related to the flow state,particle size,and particle arrangement,which leads to the incipient velocity of the observation particle being at a minimum when the interference particle angle is 45°.Finally,the particle spacing and the projected area changed with the arrangements,directly affecting the incipient velocity of the observed *** analysis of four aspects for the coefficients,dispersive pressure,different particle spacing,and projected area will facilitate the prediction of particle incipient velocity,especially on hemispherical beds.

关键词： Hemispherical bed surface Observed particle Interference particle Dispersive pressure Incipient velocity

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ANP-GRAP方法在军校教学能力竞赛中的应用

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计算机工程与应用 2015年第12期51卷 260-263,270页

作者：张强张鹏李长波解放军理工大学军教院南京211101 解放军理工大学训练部南京210007

针对军校教学能力竞赛规则中存在的主要问题,采用网络层次分析法与灰色关联分析法集成的方案,提出具体改进措施。着眼教学能力评价指标间具有较强相互影响的实际,利用网络层次分析法确定各指标权重;构建灰色关联分析模型,提出求解评价... 详细信息

针对军校教学能力竞赛规则中存在的主要问题,采用网络层次分析法与灰色关联分析法集成的方案,提出具体改进措施。着眼教学能力评价指标间具有较强相互影响的实际,利用网络层次分析法确定各指标权重;构建灰色关联分析模型,提出求解评价结果的思路;采集某次教学能力竞赛的原始数据,通过实例验证该评价模型的有效性。

关键词：军事教育教学能力竞赛规则网络层次分析灰色关联分析

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工业源含苯VOCs回收工艺的模拟优化

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化工技术与开发 2024年第1期53卷 85-91页

作者：高雨竹杨佳潼赵国峥李长波张仁轩辽宁石油化工大学环境与安全工程学院辽宁抚顺113001 辽宁华孚环境工程股份有限公司辽宁盘锦124013

针对传统苯系VOCs的处理方式落后、资源浪费、经济性差、易产生二次污染等问题,通过优化现有的吸收工艺,利用Aspen Plus化工模拟软件对整体吸收回收系统过程进行了模拟计算,考察了原料液气比、原料气苯系物浓度、吸收剂用量、吸收塔环... 详细信息

针对传统苯系VOCs的处理方式落后、资源浪费、经济性差、易产生二次污染等问题,通过优化现有的吸收工艺,利用Aspen Plus化工模拟软件对整体吸收回收系统过程进行了模拟计算,考察了原料液气比、原料气苯系物浓度、吸收剂用量、吸收塔环境温度变化的影响规律。模拟结果表明,在现有的原料气进气条件下,控制工艺进料的液气比为0.015,吸收压力为1MPa,进气温度为30℃,解吸塔进料塔板数为12,解吸塔回流比为5.51,精馏塔进料塔板数为13,精馏塔回流比为3,冷凝温度-87.5℃,冷凝压力500kPa,可达到最优的工艺效果,VOCs废气可直接达标排放。

关键词：挥发性有机物苯系物吸收冷凝模拟 Aspen Plus

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Simulation of nuclear isomer production in laser-induced plasma

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Matter and Radiation at Extremes 2024年第5期9卷 1-9页

作者： Zhiguo Ma Yumiao Wang Yi Yang Youjing Wang Kai Zhao Yixin li changbo Fu Wanbing He Yugang Ma Key Laboratory of Nuclear Physics and Ion-Beam Application(MoE) Institute of Modern PhysicsFudan UniversityShanghai 200433China

Nuclear isomers play essential roles in various fields,including stellar nucleosynthesis,nuclear clocks,nuclear batteries,clean nuclear energy,and-ray *** technological advances in high-intensity lasers have made it possible to excite or de-excite nuclear isomers using table-top laser *** a particle-in-cell code,we investigate the interaction of a laser with a nanowire array and calculate the production rates of the^(73m)Ge(E_(1)=13.3 keV)and^(107m)Ag(E_(1)=93.1 keV)***^(73m1)Ge,production by Coulomb excitation is found to contribute a peak efficiency of 1.0×10^(19) particles s^(−1)J^(−1),while nuclear excitation by electron capture(NEEC)contributes a peak of 1.65×10^(11)particles s^(−1)J^(−1).These results indicate a high isomeric production ratio,as well as demonstrating the potential for confirming the existence of NEEC,a long-expected but so far experimentally unobserved fundamental process.

关键词： process. isomers excitation

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Mass Measurement of ^(122)Cd and the New Levels of ^(120,122)Cd

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Chinese journal of nuclear physics 1997年第3期19卷 180-184页

作者： Guo Jiyu Zhao Kui Lu Xiuqin Cheng Yehao li Tianxin Fu changbo li Shuyuan China Institute of Atomic Energy,P.O.Box 275(10),Beijing 102413 中国原子能科学院北京

The mass excess of the neutron-rich nucleus 122Cd is measured by transfer reactions122Sn(18O,20Ne)120Cd and 124Sn(18O,20Ne)122*** value is derived to be -80.73±0.04 *** addition,a few new levels of 120.122Cd are obse... 详细信息

关键词： Mass measurement 122Cd Transfer reaction

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介孔Ag/AgCl/CeO2的制备及其photo-CWPO体系的催化性能

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精细化工 2020年第7期37卷 1400-1407页

作者：赵国峥李长波张洪林辽宁工程技术大学矿业学院辽宁阜新123000 辽宁石油化工大学环境与安全工程学院辽宁抚顺113001 辽宁奥克化学股份有限公司辽宁辽阳111003

以六水合硝酸铈、硝酸银和嵌段共聚物F127为原料,采用微波辅助软模板法、沉积-沉淀法和光还原法制备了有序介孔Ag/AgCl/CeO2催化剂。通过XRD、SEM、EDS、TEM、N2吸附-脱附和UV-vis DRS对该催化剂的形貌、结构及化学组成进行了表征与测... 详细信息

以六水合硝酸铈、硝酸银和嵌段共聚物F127为原料,采用微波辅助软模板法、沉积-沉淀法和光还原法制备了有序介孔Ag/AgCl/CeO2催化剂。通过XRD、SEM、EDS、TEM、N2吸附-脱附和UV-vis DRS对该催化剂的形貌、结构及化学组成进行了表征与测试。建立了光-催化湿式过氧化反应体系(photo-CWPO),考察了Ag/AgCl/CeO2在可见光照射下对丙烯腈废水的催化湿式过氧化(CWPO)降解性能。结果表明:制备的Ag/AgCl/CeO2具有有序的介孔结构,Ag和Ag Cl在CeO2表面形成,最佳Ag负载量为2 mmol时获得样品的比表面积为317.5 m2/g,在可见光区有较强的吸收,禁带宽度2.9 eV。微波辅助快速制备的Ag/AgCl/CeO2催化剂在photo-CWPO体系比单独CWPO体系具有更高的催化性能。Ag负载量、催化剂及H2O2投加量、pH可影响化学需氧量(COD)的去除率。当丙烯腈废水COD质量浓度为500 mg/L,催化剂用量为200 mg,H2O2(质量分数30%)投加量为8 mL,反应60 min时,COD去除率可达90%。

关键词：有序介孔 Ag/AgCl/CeO2 丙烯腈 photo-CWPO 微波辅助功能材料

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