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快速锚固技术在预应力锚索施工中的应用 被引量:5
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作者 谷建国 姜东民 +1 位作者 雷浪法 李丙寅 《水力发电》 EI 北大核心 1998年第2期37-39,51,共4页
在李家峡水电站高边坡开挖实践中,通过室内和现场生产试验,成功地将1000kN级预应力锚索快速锚固技术应用于工程中,取得了3d~5d龄期施加预应力的锚固效果。该项技术对于加快岩质高边坡开挖速度,有效地防止边坡塌滑起到关... 在李家峡水电站高边坡开挖实践中,通过室内和现场生产试验,成功地将1000kN级预应力锚索快速锚固技术应用于工程中,取得了3d~5d龄期施加预应力的锚固效果。该项技术对于加快岩质高边坡开挖速度,有效地防止边坡塌滑起到关键的作用。体现了“快速、经济、安全”的特点。 展开更多
关键词 预应力锚索 锚固 施工技术 高边坡 水电站基础
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发挥基层水管站作用搞好新农村水利建设
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作者 日亚汗·亚森 《河北农机》 2021年第12期165-166,共2页
近年来,随着撤村并镇改革的实施,基层水利管理面临诸多问题。为促进农村水利建设发展,基层水利管理站的建设和管理要围绕管理体制,不断完善人员知识结构,提高服务能力。因此,在这样的背景下,笔者就如何发挥基层水利管理站的作用,促进农... 近年来,随着撤村并镇改革的实施,基层水利管理面临诸多问题。为促进农村水利建设发展,基层水利管理站的建设和管理要围绕管理体制,不断完善人员知识结构,提高服务能力。因此,在这样的背景下,笔者就如何发挥基层水利管理站的作用,促进农村水利建设进行了详细的探讨。首先,笔者对基础水站的功能和作用进行了简要概述。其次,总结了基层供水站管理中存在的问题。最后,针对普遍存在的问题,提出了一些有针对性的对策,以发挥基层水利管理站的作用,促进水利建设。 展开更多
关键词 基础水电站 农村 水利建设
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A Study on Additional Electric Energy Accommodation of Three Gorges Hydropower Station 被引量:1
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作者 Chen Zheng Lin Tingwei +2 位作者 Li Ke Xia Kai Wang Xue 《Electricity》 2011年第1期29-33,共5页
Considering the additional electric energy generated after the full operation of the underground hydropower station, the electric energy accommodation of the Three Gorges Project (TGP) is reviewed. It is .focused on... Considering the additional electric energy generated after the full operation of the underground hydropower station, the electric energy accommodation of the Three Gorges Project (TGP) is reviewed. It is .focused on the additional electricity accommodation, based on the research at the earl), stage. The electric energ), accommodation solutions ate recommended as that. based on the cost-benefit analysis of the power distribution area, the additional electric energy of the Three Gorges should be given ptqority to meet the needs at the supply end of Hubei and Chongqing. The results of this research has a reference value on the implementation of the Three Gorges electric power accommodation, after the further optimization of the transmission curves in both wet and dry seasons. 展开更多
关键词 Three Gorges Hydropower Station electric energy accommodation cost-benefit analysis
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The Governance of Wetlands in the Tonle Sap Lake, Cambodia
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作者 Mak Sithirith 《Journal of Environmental Science and Engineering(B)》 2015年第6期331-346,共16页
Cambodia is a country where wetlands cover 30% of the country's total area. The Tonle Sap Lake is an important wetland area of Cambodia and Southeast Asia. However, wetland is under threats from infrastructure develo... Cambodia is a country where wetlands cover 30% of the country's total area. The Tonle Sap Lake is an important wetland area of Cambodia and Southeast Asia. However, wetland is under threats from infrastructure development, land conversion, water withdrawals, pollution, increased population pressure and hydropower dams building and affect the livelihoods of rural communities. The governance of wetlands is a key action in sustaining the wetland services and the well-being of people. The "wise use" is a key concept of wetland governance. Although there is considerable research on the "wise use" and the application of this concept in wetland management, its application in Tonle Sap remains challenged. Hence, this article addresses the question: How wise use is operationalized for the governance of wetlands in Tonle Sap and what implication it has on the wellbeing of peoples and the ecosystem services? It uses a literature review and a case study to analyze the wetland governance in Tonle Sap, Cambodia. The article describes the wetland governance based on ecosystem services, the direct and indirect driver affecting wetlands and how it threatens the livelihood security of wetland dependent communities. It concludes that the officially wise use of wetlands is a problematic in Tonle Sap. 展开更多
关键词 WETLAND ecosystem services wise use WELL-BEING decision-making distribution of power accountability.
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Filtration Features in the Base of the Bratsk HPP (Hydroelectric Power Station) Concrete Dam
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作者 Mark A. Sadovich Tatyana F. Shlyakhtina +2 位作者 Anna M. Kuritsyna Anastasia A. Shkuleva Irina S. Semenova 《Journal of Civil Engineering and Architecture》 2018年第8期543-549,共7页
The design protection of the base of the Bratsk HPP (Hydroelectric Power Station) dam from filtration coming from the water reservoir included the arrangement of several cement-grout curtains and the system of drain... The design protection of the base of the Bratsk HPP (Hydroelectric Power Station) dam from filtration coming from the water reservoir included the arrangement of several cement-grout curtains and the system of drainage holes in the 2nd and 4th columns. During operation, increased hydrostatic back pressure at the base of the dam was found, which indicated the low efficiency of the base design protection. To reduce back pressure B. E. Vedeneev Hydro Technic Institute proposed the device of “advanced” drainage holes from the cement-grout gallery near the upstream face. The implementation of the proposal in a number of sections of the dam has led to a decrease in back pressure, but affected filtration in the drainage system, increasing it significantly. The article examines filtration features of “advanced” drainage holes and their dependence on the severity of winters. The spread of the practice of “advanced” drainage in other sections of the dam requires caution and further investigations of the nature of filtration. 展开更多
关键词 Cement-grout curtain base drainage back pressure “advanced” drainage BOREHOLE seepage discharge filtration mode.
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