摘要：China’s high-speed railways are always facing the potential damage risk induced by strong *** the route design concept of“using bridge instead of embankment”has also greatly increased the probability of high speed trains moving on bridges when a strong earthquake *** the past decades,a bunch of theoretical and numerical studies have been conducted in the seismic dynamic field of high-speed ***,the effective dynamic test system for verifying the given method and theoretical results is still ***,a novel dynamic test system(DTS)consisting of a shaking table array and a train-pass-bridge reduced-scale model is proposed in this *** some crucial technical problems discussion,the effectiveness of similar design scheme and the feasibility of reduced-scale DTS are elaborated,and then the detailed DTS structures are given and displayed as *** this basis,the demonstration tests are conducted and compared with the numerical *** results show that the proposed DTS is accurate and ***,the DTS can provide a new physical simulation approach to study the high-speed train’s running safety on bridges under earthquakes and can also provide a reference for the construction of related systems.

摘要：下坂地水利枢纽工程是塔里木河流域近期综合治理规划中唯一的山区水利枢纽工程。为分析下坂地水库建成后运行效益,文章基于水库2010—2022年运行过程,总结了下坂地水库在灌溉、发电、生态、防洪、节水、社会等方面效益。结果表明工程建成后效益显著,年均节水4.17亿m^(3),超额完成多年平均向塔里木河补充生态水1.84亿m^(3)(喀群断面)及年均补充2.33亿m^(3)春灌供水任务,灌区灌溉保证率从12.8%提高到76.6%;实现多年平均发电量4.644亿kW·h目标;显著提高了塔什库尔干河的防洪能力,年均拦蓄洪水3.86亿m^(3);为流域全面打赢脱贫攻坚战提供强有力的水利保障。研究成果对于科学运行水库,实现水资源高效利用具有重要的借鉴意义。

摘要：本文设计了一种新型装配式地下综合管廊的结构形式,并将全新配比的环氧树脂混凝土材料作为结构材料应用于装配式地下综合管廊结构,可显著提高地下结构的抗渗性和耐腐蚀性;应用于实际中可有效降低地下综合管廊的维修率,全寿命周期成本大幅度降低。同时,本文借助有限元软件分析了不同跨度、不同板厚、不同预应力筋数量等参数对结构的变形及受力性能的影响。研究结果表明:综合管廊跨径、底板厚度、预应力筋数量是影响结构受力和变形的重要参数,在实际设计中应综合考虑以上影响因素,对综合管廊进行优化设计,以达到结构受力合理,材料用量最省的目的。

摘要：统筹山水林田湖草沙系统治理,是新时代农业农村经济健康可持续发展的必然要求。山水林田湖草沙系统发挥着生产、生活、生态复合功能,是农业生产活动的集中区域,文章根据区域独特的地理特征和生态退化的亟需解决的突出问题和成因,通过探索新时代且末-若羌地区农业发展新路径,把山水林田湖草沙系统治理与发展农业有机结合,构建农牧区山水林田湖草综合治理方式,使农业生产步入良性发展轨道,逐步解决生产过程中对农业资源及生态环境带来的不利影响,能够为全国其他地区,特别是荒漠化防治地区的山水林田湖草生态保护修复工作,带去可复制、可推广、可借鉴的经验。

摘要：阐述电力调动自动化系统的应用,探讨系统的优化措施,包括重视主站系统设计、做好系统安全防护、制定科学架构计划、利用新技术优化、培育优质技术人才,从而保障系统的高效平稳运行。

摘要：针对板式家具订单备料调度过程中的调度混乱、设备使用效率低的问题,本文通过对板式家具备料进行现场调研,结合订单开料工艺特点,以最小完工时间为目标,构建数学模型,将贪心算法应用在板式家具订单的调度备料中。在此基础上,依据模型进行算法设计,并对算法进行仿真试验,通过对采集的数据进行分析,验证了算法的可行性,提高了家具的备料效率。与工厂现有的调度方式相比,采用本文的调度方案可节约时间700 s,生产效率提高18.89%,对于解决多机并行的订单备料调度具有指导意义。

摘要：The grouted bolt,combining rock bolting with grouting techniques,provides an effective solution for controlling the surrounding rock in deep soft rock and fractured *** has been extensively applied in numerous deep mining areas characterized by soft rock roadways,where it has demonstrated remarkable control *** article systematically explores the evolution of grouted bolting,covering its theoretical foundations,design methods,materials,construction processes,monitoring measures,and methods for assessing its *** overview encompassed several key elements,delving into anchoring theory and grouting reinforcement *** new principle of high pretensioned high-pressure splitting grouted bolting collaborative active control is introduced.A fresh method for dynamic information design is also *** discussion touches on both conventional grouting rock bolts and cable bolts,as well as innovative grouted rock bolts and cables characterized by their high pretension,strength,and sealing hole *** examination of the merits and demerits of standard inorganic and organic grouting materials versus the new inorganic–organic composite materials,including their specific application conditions,was ***,the article presents various methods and instruments to assess the support effect of grouting rock bolts,cable bolts,and grouting ***,it provides a foundation for understanding the factors influencing decisions on grouted bolting timing,the sequence of grouting,the pressure applied,the volume of grout used,and the strategic arrangement of grouted rock bolts and cable *** application of the high pretensioned high-pressure splitting grouted bolting collaborative control technology in a typical kilometer-deep soft rock mine in China—the soft coal seam and soft rock roadway in the Kouzidong coal mine,Huainan coal mining area,was ***,the existing problems in grouted bolting control

摘要：直流GIS是实现未来轻型化、紧凑化海上换流平台以及海上换流平台向深远海发展的关键设备,在投入运行前对直流GIS进行实际工况的长期带电模拟试验,可以充分预测直流GIS在全工况下长期运行的相关性能,进而提升直流GIS投入运行后直流电网的安全可靠性。文中以±550 kV直流GIS作为研究对象,对其进行了相关介绍,提出了±550 kV直流GIS的长期带电试验方案,设计了长期带电试验回路并分析了回路中设备的选取方法,最后对±550 kV直流GIS开展了实际试验,验证了所提±550 kV直流GIS长期带电试验回路的可行性,为后续进一步开展直流GIS在全工况下长期运行时的相关性能研究工作奠定了坚实的基础。

摘要：南疆塔里木河流域受其独特的地理环境和气候环境的影响,常出现汛期洪水频发,而非汛期缺水的情况。文章收集、整理了2022年塔里木河三源流(阿克苏河、叶尔羌河、和田河)暴雨洪水资料和防洪措施资料,分析了塔里木河三源流洪水成因及特征,阐明了洪水应对措施,总结了流域防洪与洪水资源化利用经验与不足。研究结果表明,塔里木河三源流洪水具有发生早、历时长;洪水总量大,洪峰量值高;洪水场次多,多型洪水齐发等特点。通过利用现有的工程与非工程措施对2022年洪水进行调蓄与利用,有效减轻了下游防洪压力,减少了洪灾损失,同时也缓解了流域供需矛盾,提高了流域供水保障率,并对社会发展产生积极影响。研究成果对于科学利用汛期洪水,缓解流域水资源短缺具有重要的指导意义。

摘要：全球变暖加剧了冰川、积雪消融,极大程度的影响到以冰川、融雪融水为主要径流补给的流域的来水过程,增加了洪水风险。以阿克苏河流域为研究对象,重点分析了在气候变化背景下,洪水期来水量、洪水历时以及洪水峰型的变化规律及其对阿克苏河下泄的影响。结果表明:1957—2022年间洪水期来水量呈增长趋势,洪水期来水量与年径流量的比值呈减少趋势;随着年径流量的增大及代际的推移,洪水发生时间提前,结束时间滞后,洪水历时延长,洪峰流量增加;单峰型、双峰型和多峰型出现几率分别为66.7%、22.2%和11.1%;受洪水期来水影响,流域下泄水量呈增加趋势,但不满足规划目标;为减轻洪灾损失,满足下泄水量目标,建议加快流域大型控制性水利枢纽工程建设,并开展相关调度方案研究。研究成果对于保护流域下游财产安全及流域洪水资源的合理利用具有一定的指导意义。