Page 30 - 2021年第19卷第5期

Parallel computing for the stability of high rock slopes and its application

1 1 1 2，3
HUANG Jian ，CHENG Peng ，ZHENG Xiaohe ，MA Huaifa
（1. Shandong Taishan pumped storage power station Co.，Ltd.，Taian 271000，China；
2. State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin，
China Institute of Water Resources and Hydropower Research，Beijing 100038，China；
3. Earthquake Engineering Research Center，China Institute of Water Resources and Hydropower Research，Beijing 100048，China）

Abstract： Large-scale numerical simulation is desirable in the stability evaluation of high rock slope in
high earthquake intensity area，but the existing commercial software can not effectively solve these complex
engineering problems. Therefore，a parallel program with a peer-to-peer architecture was developed and ap⁃
plied to the stability evaluation of the left bank slope of upper reservoir of Taishan pumped storage power
station. Included in the modeling as the dynamic contact system are the rock slope slider body， geological
structural surface， reservoir water effect， and near-site foundation. The computation mixed finite element
method， limit equilibrium method and contact algorithm， and the output include the safety factor and its
time history of a specific sliding surface. The stability evaluations of the high rock slope satisfies the cur⁃
rent seismic design code of hydraulic structures， thus avoiding nonlinearity of complex rock material. The
computing results show that the program is highly efficient and advantageous in solving the stability prob⁃
lem of complex high rock slope.
Keywords：high rock slope； dynamic contact of structural surfaces； stability evaluation； parallel
peer-to-peer architecture；parallel computing
（责任编辑：祁 伟）

（上接第 456 页）
Analysis of dam orifice operation mode of Baihetan hydropower station based on the
influence of flood discharge atomization

1 2 1 2 2，3
XU Jianrong ，LIU Haitao ，PENG Yu ，SUN Shuangke ，YU Kaiwen
（1. Huadong Engineering Corporation Limited，Hangzhou 311122，China；
2. China Institute of Water Resources and Hydropower Research，Beijing 100038，China；
3. Nanjing Hydraulic Research Institute，Nanjing 210029，China）

Abstract： An improved mathematical model of flood discharge atomization was developed for the influence
of flood discharge operation mode of high dam on atomized rainfall downstream. The model can comprehen⁃
sively reflect the influence of flow impinging feature， meteorological conditions and valley topography， and
it is verified by engineering observation data in Xiaowan hydropower station. Based on the mathematic mod⁃
el， the atomization influence of dam orifice operation mode of Baihetan hydropower station was analyzed.
The results show that the distribution range of atomization rainfall of deep hole is larger than that of sur⁃
face outlet，due to the large fly distance of water jet and small angle of water impingement. Under the con⁃
dition of the same flood discharge and water level，different opening modes of surface and deep holes lead
to different water impinging position and water diffusion patterns， which eventually cause significant chang⁃
es of induced wind field and atomization rainfall distribution. According to the comparison results of atom⁃
ized rainfall intensity under different operating conditions，the optimal opening mode of dam orifice was pro⁃
posed. The above research can provide a reference for the analysis of atomization effect of operation mode
in practical engineering.
Keywords： flood discharge atomization； orifice operation mode； meteorological conditions； rainfall intensi⁃
ty；stochastic splash model
（责任编辑：祁 伟）

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