›› 2008, Vol. 29 ›› Issue (11): 3139-3143.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental research on squeezed scallop piles mixed expanding admixture as retaining and protecting for foundation excavation

LI Qi-min1, TANG Ye-qing2, HE Man-chao3   

  1. 1. China University of Geosciences (Beijing), Beijing 100083, China; 2. Beijing Jiaotong University, Beijing 100044, China; 3. China University of Mining and Technology (Beijing), Beijing 100083, China
  • Received:2008-03-21 Online:2008-11-10 Published:2013-08-07

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Abstract: As a new type of advanced pile of retaining and protecting for foundation excavation, the squeezed scallop pile mixed expanding admixture is studied experimentally. The intention of this paper is to survey the compaction efficiency against soil around pile, the mechanism, the retaining height, the inner stress distribution and calculation of squeezed scallop pile mixed expanding admixture as retaining and protecting for foundation excavation. Compared with common reinforced concrete retaining piles, the major characteristics of squeezed scallop pile mixed expanding admixture contain: (1) The maximum bending moment is decreased 20 % ? 30 %; (2) The total displacement in top can be reduced 33.5 % on average; and (3) The ground limit load is increased 13 % under regular service conditions. Against the contraction distortion of common reinforced concrete piles, the squeezed scallop pile mixed expanding admixture as retaining and protecting can strengthen the soil around piles effectively.

Key words: squeezed scallop pile mixed expanding admixture, characteristics, experimental analysis, calculation method

CLC Number: 

  • TU 473
  • 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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