Analysis and evaluation of hydrological components in a water curtain cultivation site

2015 ◽  
Vol 744-746 ◽  
pp. 956-961
Author(s):  
Jing Hua Liu ◽  
Sheng Nan Huang ◽  
Gang Chen

Water curtain efficiency test is the key method to evaluate the tightness and reliability of water curtain system. This thesis taking the cavern in Yantai as an example, based on the data of three different hydrodynamic condition stages during efficiency test, in combination with the important judgment parameter of water curtain efficiency-critical pressure value, the low efficiency of rock area was revealed by analyzing and evaluating the conduction effect of fissure water pressure. In order to improve the efficiency, drilled additional boreholes in low efficiency area. At last, through the test to evaluate efficiency improvement of new drilled boreholes. The test result shows that: the water curtain efficiency test can able to accurately determine the low efficiency area in rock mass, additional boreholes can significantly improve the pressure of low efficiency boreholes and can achieve the tightness requirements of cavern.


Endoscopy ◽  
2011 ◽  
Vol 43 (S 03) ◽  
Author(s):  
Zheng-xiang Wu ◽  
Ming-li Zhang ◽  
Zuo Wang ◽  
Kai-guang Zhang ◽  
Xi-ping Ding ◽  
...  

2007 ◽  
pp. 86-94
Author(s):  
A. Manakov

The article provides theoretical analysis and evaluation of the timber auctions reforms in Russia. The author shows that the mechanism of the "combined auctions", which functioned until recently, is more appropriate from the theoretical point of view (and from the point of view of the Russian practice) as compared to the officially approved format of the English auction.


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