无铰拱形泥石流拦挡坝研究
文献类型：期刊论文
| 作者 | 张宇
|
| 刊名 | 自然灾害学报
 |
| 出版日期 | 2006 |
| 卷号 | 15期号:2页码:20-24 |
| 关键词 | 泥石流 拦挡坝 无铰拱 锚杆 |
| 其他题名 | Research on non-hinged arch dam against debris flow |
| 通讯作者 | 张宇 |
| 合作状况 | 其它 |
| 中文摘要 | 在泥石流防治工程中，拦挡坝是应用得比较广泛的一种措施。利用土木建筑中的拱结构形式，结合锚杆技术，引入了无铰拱形拦挡坝的概念。在狭窄河谷中，采用无铰拱形坝既可以改善坝体的工作环境，提高其承载能力，又可以减少材料用量，从而降低造价。针对无铰拱形坝的受力特性，进行了分析，提出了加强坝体、实现无铰的构造措施。 |
| 英文摘要 | Until now，the dam of blocking sand is a usual measure to prevent and control debris flow．Arch is a general construction style in Chinese traditional buildings，which has many advan tages，such as better bearing capacity and lower cost etc．In this paper，the authors put forward a new conception，nam ely，non-hinged arch dam in virtue of arch construction style in civil engineering and anchor．It should be emphasized，in narrow valleys， non-hinged arch dam has outstanding qualities，nam ely，this style of dam has better structural system to bear load， meantime people would decrease the am ount of material and the cost of building．The authors analyzed the capacity of beating load and put forward some measures to reinforce dam and to realize non-hinged．In architectural mechan． ics analysis，the authors assumed the central axis of arch dam should be circular arC shape．Th e loads that dam should bear were calculated with experiential formulas．In the mechanical calculation，the elastic center method was used，nam ely，when the elastic center of non-hinged arch dam Was made sure，researchers Call utilize the elastic center of dam to calculate the other three restrains of the supporting end so that calculating a hyperstatic problem can be changed to calculating a static problem．On the two supporting ends of dam ，the authors designed prestressed anchors to shape rigid supporting and non-hinged，which shall be pressed into clif at one end while connected with dam at the other end．Some measures were utilized to reinforce dam ．i．e．a series of reinforced concrete layers should be laid in the dam with a special space and a reinforced net concrete cover should be applied on the front face of dam ，and etc． |
| 分类号 | P642.23 |
| 资助信息 | 国家自然科学基金资助项目(40201009) |
| 语种 | 中文 |
| 公开日期 | 2010-07-23 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/1129]  |
| 专题 | 成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前） 人事与人才处研究生部 |
| 推荐引用方式 GB/T 7714 | 张宇. 无铰拱形泥石流拦挡坝研究[J]. 自然灾害学报,2006,15(2):20-24. |
| APA | 张宇.(2006).无铰拱形泥石流拦挡坝研究.自然灾害学报,15(2),20-24. |
| MLA | 张宇."无铰拱形泥石流拦挡坝研究".自然灾害学报 15.2(2006):20-24. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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