Leakage is the most serious problem in reservoir operation, because heavy leakage influences impoundment efficiency and even leads to a complete loss of functions. Since its completion 1982, Qionglin Reservoir has never been fully filled with water except spring 1983 when there was rain. The management unit suspected that side slopes, bottom or dam might leak carried out number prevention impro...

A particular river-whiting phenomenon occurred in the early 2000s in the Xiaoche River and since then it has been reoccurring from June to November each year. Residents were surprised by this phenomenon and worried about it. This study was designed to reveal the forming mechanism of the river-whiting phenomenon. A comparison of T, EC, ORP, DO, TDS and δ34S in the culvert water and discharge pip...

In this paper, a mesh-free approach called smooth particle hydrodynamics (SPH) is proposed to analyze the seepage problem in porous media. In this method, computational domain is discredited by some nodes, and there is no need for background mesh; therefore, it is a truly meshless method. The method was applied to analyze seepage flow through a concrete dam foundation. Using the SPH method, the...

Ensuring the long-term, efficient, and safe operation of reservoir dams relies on slope stability embankment dams. Periodic fluctuations water level due to scheduling operations make bank vulnerable instability. To investigate influence various factors their interactions with dam under changing levels, a global sensitivity analysis method is proposed that accounts for seepage–stress coupling. A...

Industrialized societies which continue to use fossil fuel energy sources are considering adoption of Carbon Capture and Storage (CCS) technology to meet carbon emission reduction targets. Deep geological storage of CO(2) onshore faces opposition regarding potential health effects of CO(2) leakage from storage sites. There is no experience of commercial scale CCS with which to verify predicted ...

The paper applies fractal theory to the structure of coal pores and calculates dimension integrated for each pore section >100 nm, 100 nm > d 5.25 <2 nm. In experiment, we performed full stress–strain-seepage experiment methane-bearing coal, revealed deformation–seepage characteristics under load, deduced dynamic prediction mechanical model permeability based on heterogeneity, followed...

Gas hydrates are likely to become an important strategic resource with commercial development prospects. It is therefore of great significance realize the long-term and efficient production methane hydrate reservoirs. Previous studies have shown that lithological characteristics reservoirs a significant impact on reservoir productivity by influencing evolution seepage parameters in process prod...

Mountain Flood Control Reservoir (MFC Reservoir) is used to reduce the flood level in mountainous area and protect settlements downstream. The special feature of this MFC fast filling during 1-2 days, short storage time at maximum speed falling water level. Simulation operation was carried out on software Midas GTS NX. Two rockfill dam models were developed: with core screen. fluctuation taken ...