Foundation Pit Support Design and Construction of a Complex Building in Changchun

2012 ◽  
Vol 204-208 ◽  
pp. 968-971
Author(s):  
Hui Xiong ◽  
Long Xiang He ◽  
Yu Fei Ma

With the urban construction process speeding up, the problem of slope in foundition pit engineering has become a problem urgent need to be solved. Combined with the practical engineering,this paper used the combination of soil nailing with prestressed anchors in foundation pit support design,and found this method safe, reliable, economical and well effective.

2014 ◽  
Vol 580-583 ◽  
pp. 539-543
Author(s):  
Xian Kai Bao ◽  
Meng Hui Que

We adopt the supporting scheme of soil nailing wall by comparison and selection combining engineering geological conditions and surrounding buildings load situations. And introduce focally its supporting principles and major parameters and main construction points. The scheme meets the engineering requirements proved by the construction acceptance inspection with its safe and rational design and construction convenience.


2014 ◽  
Vol 638-640 ◽  
pp. 507-511
Author(s):  
Chong Ma ◽  
Xin Gang Wang ◽  
Bin Hu ◽  
Hong Bing Zhan

The rapid development of deep foundation pit engineering, has become an important part of the urbanization construction, which brings deep excavation support of geotechnical engineering problem research also became a major issue. This paper uses the international well-known geotechnical engineering numerical simulation software FLAC3D, through 3D finite difference numerical calculation and analysis, to better simulation calculation and analysis of deep foundation pit construction site condition, forecast after excavation of the deep foundation pit deformation displacement and dangerous position, analysis of deep foundation pit excavation process isolation pile - steel shotcrete combined support effect. Three dimensional numerical model analysis and calculation in deep foundation pit engineering design and construction scheme optimization with economy is convenient wait for a obvious advantages, can for deep foundation pit excavation of deep foundation pit support design and construction to provide effective basis.


2014 ◽  
Vol 1065-1069 ◽  
pp. 48-52
Author(s):  
Shu Long Zhang ◽  
Fen Ting Lu

Abstract. The horizontal displacement of soil in slope and the change law of ground surface settlement are dynamically analyzed by building three dimensional-model of foundation pit with the finite element software, ABAQUS, to simulate the construction process of excavation and support, to figure out the influence of micro pile and waterproof curtain on composite soil nailing wall. The study indicates that mechanical model of soil nailing, waterproof curtain, micro pile, pre-stressed anchor interacting with soil can better simulate the construction process of composite soil nailing wall support and have higher calculation accuracy. The calculation can provide a reference for the design and construction of composite soil nailing wall.


2012 ◽  
Vol 594-597 ◽  
pp. 2906-2914
Author(s):  
Chang Wen Chen

On the basis of a typical engineering, a foundation of soil nailing walls supporting simulation model of soil nailing on the structure of the excavation is established with FLAC, the construction process of the supporting structure is analyzed in the dynamic simulation. The deformation characteristics of the supporting structure are analyzed during the construction process, the law of the supporting body deformation with the difference of excavation steps is summarized. The situ test data of the deep foundation horizontal displacement and vertical displacement are obtained by testing in situ. Some useful conclusions are summarized by comparative analyzing the numerical simulation value and situ test data, providing guidance for the design and construction of the pit soil nailing wall.


2013 ◽  
Vol 353-356 ◽  
pp. 692-695
Author(s):  
Chang Zhi Zhu ◽  
Quan Chen Gao

Based on an Engineering Example which was supported by the stepped soil-nail wall, a numerical analysis model was established by FLAC3D,and the process of the excavation and supporting was simulated, and the numerical results of the soil nails internal force and foundation pit deformation were obtained. The simulated result was consistent with the measured results. It shows that the method of FLAC3D numerical analysis can be used to the numerical analysis of foundation pit excavation and supporting, and it will provide the basis for the design and construction of practice project.


2000 ◽  
Vol 7 (2) ◽  
pp. 141-153 ◽  
Author(s):  
MICHAIL KAGIOGLOU ◽  
RACHEL COOPER ◽  
GHASSAN AOUAD ◽  
MARTIN SEXTON

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