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Research on Application of Root Pile Technique in Reinforce Foundation

Author: ShiJianGuo
Tutor: DaiTaGen
School: Central South University
Course: Geological Engineering
Keywords: root piles underpinning technique reinforce treatmemt
CLC: TU473.1
Type: Master's thesis
Year: 2004
Downloads: 195
Quote: 4
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Executive Summary

This paper inquires into the characteristics, application and theory of root piles underpinning. After combining the features of engineering geology and actural situation in Chunyuan Building no.l and using the way of comprehensive techniques and contrasting, the author believes that choosing root piler have less influnce to the building and its foundation , and more sensitivity to bearing capacity to reinforce the foundation of the Chunyun Building no.1. After continuous subsidence watching of the reinforce work, it is proved through practice that this technique is both economical and convenient, and working efficiency is improved greatly, and the equipments used are usual and the time cost is short and the technique is uncomplicated, especially, it can improve the earth under the foundation effectively. It not only opens up the scope of the root piles application, but also has the unique effect on the similar questions in our country.

Full-text Catalog

1 Introduction     7-12
1.1 prop for Technology Overview     7
1.2 Underpinning the technical classification     7-9
1.3 Underpinning the status and development     9-10 the importance of research
1.4 root piles     10-11
1.5 research significance     11-12
2 tree pile, the basic characteristics of     12-20
2.1 Root Piles concept     12
2.2 root piles in the domestic and international development status     12-19
2.2.1 ancient architecture underpinning     13-15
2.2.2 stable rock and soil slope     15-16
2.2.3 Underground Railroad crossing     16-17
2.2.4 building additional layer     17-19
2.3 root piles advantages     19-20
root piles of design theory and calculation     20-28
310 single root piles design     20-22
3.2 reticular roots pile design     22-28
3.2.1 of the design and calculation to pull the network structure of root piles     23-25 ??
3.2.2 compressive mesh structure design and calculation of roots pile is     25-28 < br /> 4 Spring Garden 01 foundation reinforcement to deal with engineering analysis     28-38 28
4.2 cell engineering geological conditions
4.1 Project Overview         28-32 < br /> 4.2.1 strata lithology     28-29
4.2.2 geological structure is     29-31
4.2.3 to stress environment     31
4.2.5 foundation uniformity     32
4.3 foundation strengthening treatment works analysis     32-38
4.3 .1 factor analysis     32
4.3.2 slope (foundation) instability mechanism and characteristics of     32
4.3.3 Stress analysis     32-34 < br /> 4.3.4 geotechnical engineering properties     34-38
5 Spring Garden 01 foundation reinforcement processing research     38-53
5.1 Spring Garden 01 foundation reinforcement treatment the principle of     38
5.2 reinforcing the choice of treatment options     38-39
5.3 Spring Garden 01 roots pile design     39-41
5.4 root piles to reinforce the foundation of the mechanism     41-43
5.4.1 pile skin resistance to improve the role of     41-42
5.4.2 pile of soil between the improving effect of     42
5.4.3 pile role     42-43
5.5 root piles of construction     43-47
5.5.1 use reasonable construction machinery and equipment     43
5.5.2 into a hole     43
5.5.3 dipping the reinforcement cage and the grouting pipe     43-44
5.5. fill filling gravel     44
5.5.5 Grouting     44-46
5.5.6 pouring pile cap beam     46-47
5.6 tree pile construction quality assurance measures     47-48
5.7 retaining roots pile support, reinforcement in stress analysis     48-51
5.7.1 block soil root piles supporting the force and deformation characteristics     49-50
5.7.2 block soil roots pile and soil nail (spray anchors) support structure of the force and deformation characteristics     50-51
5.8 root piles bearing capacity determination     51-53
conclusion     53-54
References     54-55

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