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Study on Double-row Sunken Anti-slide Piles and Their Mechanism

Author: LiJunFei
Tutor: YinKe
School: Chongqing University
Course: Geotechnical Engineering
Keywords: Anti-slide pile Submerged Double-row piles Pile row spacing Layout Arching effect Finite Element Method
CLC: TU473.1
Type: Master's thesis
Year: 2009
Downloads: 190
Quote: 1
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Abstract


In the prevention and treatment of large and medium-sized landslide in Chongqing skid retaining structures, reinforced concrete cantilever anti-slide pile and buried anti-slide pile is the most common and Chongqing Features two landslide control engineering, the latter is an emerging economy practical anti-slide technology is particularly applicable in the Chongqing certain large soil landslide reinforcement. Compared with cantilever anti-slide pile, buried anti-slide pile bending moment suffered less supplies pile, and greatly improve the performance of the force of the pile, reducing the project cost. Large decline thrust set landslide buried anti-slide pile for the existence of a clear sliding surface and geological conditions are met, if only to set a row you need a great cross-section of anti-slide pile and pile length, resulting in high costs or The retaining structures unreasonable stress, you may consider using double row or rows of buried anti-slide pile governance occasions. Double row or rows of buried anti-slide pile is still in the exploratory stage, not yet mature basic theory and practical design, its working mechanism is unclear. This paper ready to study the working mechanism of the double row of buried anti-slide pile and applicable design methods. ① clearly buried anti-slide pile design ideas from the design point of view, summed up the applicable conditions of the embedded anti-slide pile design, the basic definition of control conditions and assurance measures; embedded anti-slide pile design in a question: Cantilever, embedded segment, the pile spacing calculate the width, to explore the cross-sectional shape of the pile and the soil arching effect, the practical conclusions; ② landslide thrust row before and after the double-row embedded anti-slide pile pile allocation model theoretical derivation of useful conclusions; ③ The use of numerical simulation methods are different pile row from the case front row pile force and deformation characteristics of the shear strength of the soil, the embedded solid length cantilever length thrust loads carried out in-depth research on the impact of the internal force distribution, and thus provide the basis for specific engineering design; ④, respectively, for the double-row arrangement of the \pile front and rear anti-slide pile force distribution model and the corresponding effect of bagging pile spacing and pile row spacing \row spacing of the double-row embedded anti-slide pile, pile spacing and layout design proposals.

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CLC: > Industrial Technology > Building Science > Soil mechanics,foundation engineering > Foundation > Pile foundation and deep foundation > Pile
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