Study on the implementation and treatment of pile foundation construction under karst geological conditions

2020 ◽  
Vol 2 (1) ◽  
pp. 36-42
Author(s):  
Huang Bing ◽  
Chen Zhigang
Keyword(s):  
Pile Foundation ◽  
Foundation Construction ◽  
Geological Conditions

Construction Technology Research Expressway Soft Long Pile Lakes

2014 ◽  
Vol 1065-1069 ◽  
pp. 687-690
Author(s):  
Mei Yan He
Keyword(s):  
Pile Foundation ◽  
High Speed ◽  
Soft Clay ◽  
Construction Technology ◽  
Construction Process ◽  
Technology Research ◽  
Technical Problems ◽  
Foundation Construction ◽  
Bored Pile ◽  
Geological Conditions

Currently, bored pile been widely applied in the current road and bridge construction, But its construction technology in complex geological case is still not perfect. In view of this, this paper carried out a high-speed Lakes viaduct extraordinary pile foundation construction project. For the analysis of the technical difficulties in the construction process, explore get the corresponding key construction technology, and it relates to the accident and its approach are summarized, study drew long pile construction technology Lakes geological conditions under soft silt and clay, solve the long holes bored pile into the lake silt soft clay under geological conditions, verticality control and other technical problems, can provide reference for similar projects.

Auger Bored Piles Application Works in the Subway

2014 ◽  
Vol 580-583 ◽  
pp. 1301-1305
Author(s):  
Yang Wu
Keyword(s):  
Pile Foundation ◽  
Foundation Engineering ◽  
Quality Cost ◽  
Foundation Construction ◽  
Wet Process ◽  
Long Duration ◽  
Geological Conditions ◽  
Bored Piles ◽  
Subway Construction ◽  
The Impact

<span><span lang="EN-US">Pile Foundation Construction jobs are usually wet process has contaminated a large, long duration, the pile of inconsistent quality, cost out. And long bored piles to adapt to a variety of complex geological conditions, but not the impact of water table, is widely used in various projects of the foundation engineering, this according to subway construction in Kunming, the application of experience, a brief description length screw pile construction anti-interpolation technology.</span>

The Application of Cast-in-Place Pile in Fanhe Harbor Bridge

2011 ◽  
Vol 368-373 ◽  
pp. 2839-2842 ◽  
Author(s):  
Bin Tang ◽  
Ya Guang Liu ◽  
Xiao Xin Zhang
Keyword(s):  
Pile Foundation ◽  
Sea Water ◽  
Soft Soil ◽  
Soil Layer ◽  
Bridge Engineering ◽  
Engineering Practice ◽  
Key Technology ◽  
Foundation Construction ◽  
Geological Conditions ◽  
Bridge Foundation

Cast-in-place pile with its strong adaptability, cost moderate, construction simple and its high bearing capacity, can penetrate through the soft soil layer, facilitate underwater construction and the settlement is small and other characteristics are widely used in bridge engineering field. But the changeful gulf climate, tidal fluctuations bring a lot of inconvenience to bridge foundation construction, and sea water features affect the durability of the bridge foundation, so cast-in place pile foundation construction are difficult technical at gulf environment. This paper introduces a successful practice about cast-in-place pile engineering in the bay bridge. Combined with the Fanhe Harbor Bridge engineering practice, based on the special hydrological, geological conditions, this paper expounds the gulf cast-in-place pile construction and key technology.

scholarly journals Safety of building constructed on hillside slope

2021 ◽  
Vol 23 (1) ◽  
pp. 126-139
Author(s):  
S. V. Yushchube ◽  
I. I. Podshivalov ◽  
A. S. Larionov
Keyword(s):  
Pile Foundation ◽  
Strain State ◽  
Three Dimensional ◽  
Soil Formation ◽  
The Other ◽  
Structural Safety ◽  
Construction Site ◽  
Geological Surveys ◽  
Geological Conditions ◽  
Supporting Structures

The paper focuses on the pile foundation and footing of the building constructed on a hillside slope and consisting of four three-dimensional blocks. The building is arranged such that to protect the first block constructed on the footslope from the negative technogenic influence of the latter via the embedment of three supporting blocks into the hillside slope. The first three-dimensional block is a three-storey brick building, while the other three are the spatial supporting structures made of insitu reinforced concrete. All the blocks locate at different position levels. The resulting embedded part of the structure matches the class KS-3 construction site safety. It is thus necessary to assess the structural safety of the building constructed in difficult engineering and geological conditions. The MicroFe software is used for finite element dimensional calculations of the pile foundation and footing strength, stability and oscillation after studying the engineering-geological surveys, the analysis of the soil formation, composition and physicalmechanical properties, the piling field. Also, the theoretical model is proposed for the footingfoundation–building system. The obtained results allow assessing the stress-strain state of the pile foundation and footing with the lateral support to the hillside slope of soil.

scholarly journals Stability Evaluation Method of Hole Wall for Bored Pile under Blasting Impact

Symmetry ◽  
2022 ◽  
Vol 14 (1) ◽  
pp. 79
Author(s):  
Qiuwei Yang ◽  
Zhikun Ba ◽  
Zhuo Zhao ◽  
Xi Peng ◽  
Yun Sun
Keyword(s):  
Pile Foundation ◽  
Evaluation Method ◽  
Impact Load ◽  
Stability Evaluation ◽  
Foundation Construction ◽  
Concentration Problem ◽  
Hole Wall ◽  
Failure Theory ◽  
Collapse Failure ◽  
The Stability

Blasting impact load may be encountered during the construction of some pile foundation projects. Due to the effect of blasting impact, hole collapse can easily occur in the hole-forming stage of pile foundation construction. In order to prevent hole collapse, it is very necessary to evaluate the stability of a pile hole wall before pile foundation construction. The calculation of hole collapse can usually be attributed to an axisymmetric circular hole stress concentration problem. However, the existing collapse failure theory of pile hole hardly considers the effect of blasting impact load. In view of this, this paper proposes the stability evaluation method of a pile hole wall under blasting impact. Compared with the existing collapse failure theory, the proposed method fully considers the effect of blasting impact stress. Using Mohr–Coulomb strength theory and symmetry analysis, the strength condition of collapse failure is established in this work for accurate evaluation of the stability of a hole wall. The proposed stability evaluation method is demonstrated by a pile foundation construction project of a bridge. Moreover, a shaking table test on the pile hole model was performed to verify the proposed method by experimental data. The results indicate the effectiveness and usability of the proposed method. The proposed method provides a feasible way for the stability analysis of a pile hole wall under blasting impact.

Inquiry on the Management Method of Pile Foundation Construction in Construction Engineering

2020 ◽  
Vol 5 (1) ◽  
pp. 11-13
Author(s):  
Lizhen Tao ◽  
Keyword(s):  
Construction Management ◽  
Pile Foundation ◽  
Quality Level ◽  
Present Stage ◽  
The Sustainable Development ◽  
Construction Engineering ◽  
Foundation Construction ◽  
Management Method ◽  
Important Position

At the present stage, the expanding scale of construction infrastructure in China has brought a lot of guarantee role to promoting the sustainable development of China’s national economy. Pile foundation construction plays an important position in construction engineering, and has a very important impact on the overall quality level of construction engineering. However, in the actual pile foundation construction, there are still many problems, restricting the quality of pile foundation construction. Therefore, the construction department of construction engineering should do a good job in construction management, improve the overall quality of pile foundation construction.

Environmental Impact of Waste Slurry in Pile Foundation Construction of High-Speed Railway Bridges and its Countermeasures

2011 ◽  
Vol 383-390 ◽  
pp. 3690-3694
Author(s):  
Yu Long He ◽  
Chun Mei Xiong
Keyword(s):  
Wastewater Treatment ◽  
Environmental Impact ◽  
Pile Foundation ◽  
High Speed ◽  
Environment Friendly ◽  
High Speed Railway ◽  
Railway Bridges ◽  
Foundation Construction ◽  
The Third ◽  
Use Efficiency

Slurry is a necessary material in high-speed railway pile foundation construction. A lot of waste slurry which is harmful to the eco-environment will be generated after the construction is finished. If the slurry isn’t disposed properly, it will cause serious pollutions to the environment. This paper analyses environmental impact of waste slurry through four aspects: surface water, crops, soil and wastewater treatment system etc. Finally, it gets the conclusion that there are four methods to reduce the environmental pollutions of waste slurry: the first one is using the environment-friendly slurry in pile foundation construction; the second one is raising the slurry use efficiency; the third one is decreasing the amount of slurry usage and the output of waste slurry; the last one is developing the more eco-friendly waste slurry treatment methods.

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