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娘子关供水工程压力管路安全运行方式研究 被引量:5
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作者 苏亮渊 李鹏犇 +1 位作者 孟弯弯 贾亚杰 《水利水电技术》 CSCD 北大核心 2016年第1期127-131,共5页
本文分析计算了山西省阳泉市娘子关二期供水工程运行过程中突然停泵时的水力过渡过程,发现管道存在超过规范要求的负压,针对二级站压力管路的负压问题提出四种改善措施:降低管线高程,增加蝶阀,改善机组转动惯量,增加进排气阀。通过VB编... 本文分析计算了山西省阳泉市娘子关二期供水工程运行过程中突然停泵时的水力过渡过程,发现管道存在超过规范要求的负压,针对二级站压力管路的负压问题提出四种改善措施:降低管线高程,增加蝶阀,改善机组转动惯量,增加进排气阀。通过VB编程建立水锤计算模型,分别对四种措施进行比较分析模拟计算,并结合工程实际提出满足规范要求的合理防护方案,以期实现娘子关二级站的安全运行。 展开更多
关键词 安全运行 负压研究 优化方案 娘子关供水工程
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Study on the Test Method of Static Earth Pressure Coefficient of Deep Soils 被引量:6
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作者 XU Zhi-wei ZHOU Guo-qing +3 位作者 LIU Zhi-qiang ZHAO Xiao-dong LI Sheng-sheng ZHANG Lei 《Journal of China University of Mining and Technology》 EI 2007年第3期330-334,共5页
The static earth pressure coefficient of soils is,approximately,considered to be a constant in the view of clas-sical soil mechanics. This is supported by many research results. The high pressure experimental research... The static earth pressure coefficient of soils is,approximately,considered to be a constant in the view of clas-sical soil mechanics. This is supported by many research results. The high pressure experimental research and analysis of remolding deep soil described herein indicate that the static earth pressure of thick overburden has a notable non lin-ear characteristic. It also appears larger than that of superficial soils. It is necessary for deep coal mine design and con-struction to consider this particularity of soil pressure so as to avoid engineering accidents and heavy loss of life and property. 展开更多
关键词 thick overburden static earth pressure coefficient experimental research
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