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Model of Deep Foundation Pit Supporting Technology - Hanging Pit
Applied Mechanics and Materials, 2013From the point of view of engineering application, this paper systematically discusses the characteristics of soil retaining, watertight aspects of retaining wall which combined mixing piles of waterproof curtain and bored concrete pile . Aiming at the shortcomings of construction process of the open caisson , this paper puts forward a new type of ...
Qing Min Gao, Kai Chao Jin
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Construction of a Foundation Pit without Dewatering
Tunneling and Underground Construction, 2014In Beijing, dewatering has been strictly prohibited in foundation-pit excavation since March 1, 2008. Therefore, the deep foundation pit has to be constructed underground water level, which makes the construction of the water-resistant curtain and anchor quite difficult in granular soil.
Zhi-bin Fu +3 more
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Several cases on support of foundation pits
ce/papers, 2018AbstractProbably one of the most challenging geotechnical tasks in urban areas is supporting of deep foundation pits. In some regions this task is pretty hard to accomplish due to the limited experience of the contractors in the field of geotechnical structures, the lack of proper construction equipment, specific urban planning etc.
Ljupco DIMITRIEVSKI +6 more
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Numerical Simulation Program of the Foundation Pit
Advanced Materials Research, 2012In this paper, a deep foundation pit of one subway station is analyzed under two different precipitation conditions, and the deformation laws of the pit under one-time precipitation and step-by-step precipitation conditions are investigated. The results indicate that the deformations caused by one-time precipitation are significantly larger than the ...
Qing Nian Yang +2 more
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Dewatering Types in Foundation Pit
2015In general, the deep foundation pit is defined as follows: excavation pit is over 5 m (including 5 m), or even though the depth is no greater than 5 m, the geological and surrounding environment conditions are very complex, or the excavation affect the safety of adjacent buildings.
Yiqun Tang +4 more
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Research on Stability of Foundation Pit Construction
Applied Mechanics and Materials, 2014In geotechnical engineering, the support pattern regularly applied is continuous wall, whose high security, strong adaptability, good stability and other characteristics have been widely appraised in engineering circles. This paper use Midas to build the three-dimensional research model on varied construction stages of foundation pit, in which the ...
Heng San Dai, Tao Yang
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Realization of foundation pit dewatering visualization
2011 International Conference on Consumer Electronics, Communications and Networks (CECNet), 2011Make use of the principle of steady flow and unsteady flow of groundwater dynamics, introducing the method of groundwater level real time prediction around the foundation pit in the process of disturbed wells dewatering. The best arithmetic was selected after the Cross Validation.
Jiyun Li, Hongxing Pei
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Influence Analysis of Pit Foundation Precipitation to Adjoining Raft Foundation
Advanced Materials Research, 2011Pit foundation excavation leads both settlement and uneven settlement in the building foundation. It has settlement cracks in masonry and concrete structure; these damages lie on the basis of the instability in neighboring buildings. In this paper, by the use of FLAC3D, it establish three-dimensional numerical analysis mode of interaction between ...
Zong Jun Sun +3 more
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Design of Foundation Pit Retaining Structures
2019The foundation pit is constructed for foundations, basements, or other underground engineering, and the foundation pit engineering includes excavation, dewatering, retaining project, soil reinforcement, detecting engineering, etc. Therefore, the foundation pit engineering shows the following characteristics.
Zhen-Dong Cui +4 more
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Surface subsidence of pit-in-pit foundation in sand–cobble stratum in Beijing area
Proceedings of the Institution of Civil Engineers - Ground Improvement, 2019A ‘pit in pit’ is a common problem in the excavation of foundation pits and yet this issue has not been researched systematically. The variability of its form not only complicates the condition of the surrounding stress and displacement fields, but also brings difficulty to design and construction.
Yi Sun, Yong Zhao, Dingli Zhang
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