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In this article, the seismic resistant effect of a new reinforcement measure on rockfill dams, the Composite Reinforcement, is investigated based on 1-g large-scale shaking table tests. A 1 m high rockfill dam, which is scaled from the Yele rockfill dam in China, is tested by inputting a series of motions designed from a realistic Wenchuan earthquake record. The model dam is divided into two sections, with one section representing a normal rockfill dam (RD) while the other section employing the Composite Reinforcement (composite reinforced rockfill dam (CRRD)). The seismic-resistant effect of the Composite Reinforcement is investigated by comparing the recorded dynamic response of the two dams, in terms of the peak acceleration amplification factor distribution along the dam core, the crest settlement, and the visualized failure pattern. Results show that the application of the Composite Reinforcement can effectively mitigate the seismically induced deformation of the rockfill dam by reducing the peak crest acceleration and residual crest settlement by 18% and 55%, respectively, when subjected to a 0.5 g input motion. The investigation of the captured failure pattern on the two dams further indicates the effective reinforcing effect of the Composite Reinforcement on preventing the sliding failures of rockfill materials in the top 20% height of the dam body. 相似文献
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江西宋元墓葬中出土有一类较为特别、数量偏少的买地券,基本发现于吉安市境内.以张重四地券为代表,券文中将西汉梅福作为知见人,文句有固定范式,券末附咒语、符箓,体现了较高的文化水平.结合《道藏》等文献,对劵文中一些术语进行了简要解读,并提出吉安市为这种买地券及其背后风水流派的中心传播区域.元代以后梅福因神职降低不再作为知见人出现,但劵文末符咒有所保留,在一些地方仍旧继续流传. 相似文献
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Huang Xing 《中国西藏(英文版)》2016,(4):29-35
正Tibet,the roof of the world,has always been globally renowned for its highaltitude mountaineering.The first group of Chinese heroes to reach the peak of Mt.Qomolangma included Tibetan athletes.Today,Tibet has become a land favored by high-altitude mountaineers.As the Chinese sport industry is about to kick off,Tibet is taking the opportunity to make use of its resources and achieve significant development in sports. 相似文献
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“一五”时期我国集中进行的大规模能源工业建设取得了突出成就,对国民经济的发展产生了积极影响:煤炭工业得到迅速恢复和发展,支援了其他工业的建设;一批电力企业建成投产,大大增加了发电量;经过大规模勘探开发,原油产量大幅提高。今天我们重新审视“一五”时期的能源建设,应认真总结和吸取经验教训,制定稳定的能源政策:能源工业建设要遵循经济发展规律,要与国力相适应,尽量避免非经济因素的负面影响;要把外国先进经验和技术同我国国情相结合,处理好自力更生与争取外援的关系;要坚持可持续发展的原则,对各种能源合理地开发利用,同时注意环境保护。 相似文献
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杨万里佚文《罗塘许氏族谱序》辨伪 总被引:1,自引:0,他引:1
<文献>2006年第2期发表胡建升先生<杨万里佚文考>(以下省称"胡文"),首次披露作者所发现的<罗塘许氏图谱>中一篇署名杨万里的序文<罗塘许氏族谱序>. 相似文献
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青海塔尔寺建筑宏伟,气势磅礴,蕴含着博大精深的藏文化。它完好地保存着许多稀世国宝,还有为世人瞩目的“三绝”:壁画(唐卡)、堆绣、酥油花。 相似文献
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一、图像中的民俗宋人张择端的长卷《清明上河图》是社会风俗画的代表作之一,描绘了宋代东京汴梁繁荣的经济和社会生活。这幅画卷内容丰富,人物众多,规模宏大;同时画面循序渐进,从宁静的郊区渐进到熙熙攘攘的汴河虹桥,渐次是热闹的街市、河运繁忙的运河,生动表现了宋代市民生活那种熙熙人间的众生态。下面撷取《清明上河图》中一部分体现宋代生活习俗的图像,进行简单分析。 相似文献
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城市公园游憩者满意度研究——以广州为例 总被引:6,自引:0,他引:6
以广州城市公园为研究对象,探讨了城市公园满意度评价因子与整体满意度、重游意愿之间的相互关系。通过因子分析法,萃取出游憩者6个城市公园满意度评价因子-景观质量、基础设施、游憩环境、游憩项目、服务质量、便利程度。分析显示除性别、受教育程度外,在年龄、客源地、职业等人口统计学变量下,城市公园游憩者满意度评价存在显著性差异;多元回归分析验证了6个因子与整体满意度之间存在明显的正相关关系,除服务质量外的5个因子与重游意愿之间也存在明显的正相关关系。 相似文献