In-situ Test Study on Osmotic Behavior of Fracture Rock Mass under High Head Condition

被引：0

作者：

Jiang Zhongming ^{[1
,2
,3
]}

Feng Shurong ^{[2
]}

Chen Shenghong ^{[3
]}

机构：

[1] Changsha Univ Sci & Technol, Changsha 410076, Hunan, Peoples R China

[2] CHECC, Midsouth Design & Res Inst, Changsha 410076, Hunan, Peoples R China

[3] Wuhan Univ, Wuhan 430072, Hubei, Peoples R China

来源：

FLOW IN POROUS MEDIA - FROM PHENOMENA TO ENGINEERING AND BEYOND | 2009年

基金：

中国博士后科学基金;

关键词：

fractured rock mass; high head permeability test; permeability coefficient; state of stress;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Combined with high head permeability test and routine water pressure test and indoor permeability experiment for fractured rock mass in high pressure water tunnel in Heimifeng water-pumped storage power project, the variation law of rock mass permeability under high water pressure condition is analyzed to describe the relation between discharge and water pressure. Through the calculation of permeability coefficient of fractured rock mass, relation between water pressure and permeability coefficient is also discussed. By comparison the results of high pressure permeability test, conventional pressure permeability test and indoor permeability experiment, the environmental stress and water pressure state of rock mass are considered as the main factors influencing the permeability coefficient. The experimented and analyzed results indicate that values of permeability in high water pressure are obviously greater than values in low water pressure state. It is also pointed out that values of permeability in indoor experiment are greater than values obtained in situ test.

引用

页码：845 / +

页数：2