›› 2006, Vol. 27 ›› Issue (6): 1011-1016.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Determination of coefficient Ms during calculation of surrounding ground settlement due to foundation pit dewatering

WANG Cui-ying1, HUANG Li-xing2, DUAN Wei-chang3, YU Yi-feng3   

  1. 1. Hubei University of Technology, Wuhan 430068, China; 2. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 3. Hubei Chang An Building Stock Co., Ltd. Yingshan 438700, China
  • Received:2005-01-17 Online:2006-06-10 Published:2013-11-14

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Abstract: From overburden layers, semipervious layers above depression-cone level drainage consolidation, porous media (geo-formation) compression and water compression, the ground settlement mechanism is analysed during foundation pit dewatering. Compression layers thickness due to dewatering is chiefly overburden layers, semipervious layers thickness above depression-cone level. Collecting the related data of 10 foundation pits dewatering engineerings, the practical values and theoretical values are compared and a set of modified-coefficient of surrounding ground settlement due to foundation pit dewatering (aggregately 880 groups of data ) are got. Using BP neural network method to process those data, we can find a sort of net mapped connection between given inputs and outputs ( ).We can use net connection to input a sort of , and get isoline of modified-coefficient which is corresponding with different , S. Accordingly we can find modified-coefficient of arbitrary ，S, which has practical value to foundation pit dewatering engineering of similar layers to forecast practical settlement at different times and distances from foundation pit.

Key words: modified-coefficient, foundation pit, dewatering, overburden layer

CLC Number: 

  • TU 46+.3
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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