|Table of Contents|

Analysis on double-row anti-slide piles of slope in Yanan(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2011年02期
Page:
63-67
Research Field:
Publishing date:
2011-04-30

Info

Title:
Analysis on double-row anti-slide piles of slope in Yanan
Author(s):
LIU Ming1;  HUANG Hua1; 2;  HAN Bing3;  LIU Bo-quan1
1. School of Civil Engineering, Chang'an University, Xi'an 710061, Shaanxi, China; 2. Key Laboratory for Old Bridge Detection and Reinforcement Technology of Ministry of Transportation, Chang'an University, Xi'an 710064, Shaanxi, China; 3. China Northwest Building Design & Research Institute, Xi'an 710003, Shaanxi, China
Keywords:
geotechnical engineering;  loess slope;  double-row piles;  retaining structure
PACS:
P642.131
DOI:
-
Abstract:
During the urbanization process of Yanan, there are high building slopes retained with double-row anti-slide piles in loess hilly regions. The mechanism of the double-row anti-slide piles were analyzed with the help of Marc program. The influencing factors were analyzed, which included the pile-soil interaction, the pile's rigidity, the crossbeam's rigidity, the length of the double-row piles and their distance. The results show that with the reduce of the soil's strength, the part of the front pile which has contact with the soil directly extends to the top of the pile, but the part of the back pile which has contact with the soil directly shrinks from the top of the pile. The tensile stresses of the upper half of the front pile are bigger. Especially on the root of the slope the tensile stresses reach the biggest. But the biggest tensile stresses of the back pile lie on the 14 m to 15 m from its top. The ratio of the biggest tensile stresses of the front pile and the back pile is about 3/2. When calculating the capability, the bending moment can be proportional distributed with 3/2. The height of the tie beam on the pile top is about 60% to 70% of the pile's diameter. The distance between the front pile with the back pile is about 1.5 to 2 times of the pile's diameter. 14 figs, 5 refs.

References:

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Memo

Memo:
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Last Update: 2011-04-30