Technical Analysis of Supporting and Geotechnical Investigation of Deep Foundation Pit in Engineering Construction

2021 ◽  
Keyword(s):  
Technical Analysis ◽  
Geotechnical Investigation ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Engineering Construction ◽  
Deep Foundation Pit

The Applied Research of Safety Monitoring and Forecasting Technology in the Foundation Pit Supporting Construction

2013 ◽  
Vol 443 ◽  
pp. 214-217
Author(s):  
Zhen Xi Yu
Keyword(s):  
Applied Research ◽  
Technical Process ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Monitoring Method ◽  
Engineering Construction ◽  
Deep Foundation Pit ◽  
High Rise ◽  
Monitoring And Forecasting ◽  
Control Accuracy

With the scale development of our high-rise buildings, together with the development and enhancing of monitoring technology of deep foundation pit supporting construction. Control accuracy is the main part for monitoring technical process in deep foundation pit supporting construction, the requirement of monitoring is higher and higher than before, relevant monitoring method, frock and tools, earthwork type of shipping and downriver way in engineering construction will develop in revolutionary way. In view of above mentioned, this paper try to do researching on monitoring technical process in deep foundation pit supporting construction in our country, hope to supply reference for counterparts.

Simulation Analysis on Deep Foundation Pit Construction Near the History Style Construction

2013 ◽  
Vol 671-674 ◽  
pp. 113-116
Author(s):  
Chun Yuan Liu ◽  
Wei Wei Cao ◽  
Yu Liu
Keyword(s):  
Simulation Analysis ◽  
Horizontal Displacement ◽  
Construction Safety ◽  
Calculation Model ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Engineering Construction ◽  
Deep Foundation Pit ◽  
The Third ◽  
The Impact

Based on the impact of deep foundation pit excavation to the adjacent history style construction, FLAC3D was adopted to establish the excavation and supporting calculation model of a pit in Tianjin. The excavation deformation was analyzed, and the contact slip effect of the supporting structure and soil was considered. The results of study are as follows. (1) The pit has been dig to the third layer, and the values calculated are consistent with the monitored ones by comparing simulation values and measured results on B1 section. (2) Digging to the bottom of the pit, we can predict the biggest horizontal displacement of soil is 34.6 mm, and the value is 11.2mm in the history style construction. Therefore, the results of the study can play a guiding role in the engineering construction safety.

Research on the Deformation Monitoring of Deep Foundation Pit Engineering

2014 ◽  
Vol 889-890 ◽  
pp. 1383-1387
Author(s):  
Ya Jun Yin ◽  
Xiao Long Liu ◽  
Yong Mei Qian
Keyword(s):  
Deformation Monitoring ◽  
Reliable Data ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Engineering Construction ◽  
Deep Foundation Pit ◽  
Important Impact ◽  
Safety Risks ◽  
Depth Analysis ◽  
Deformation Law

Because of the excavation of deep foundation pit will have an important impact on the surrounding buildings, causing serious safety risks, In this paper, though the deformation monitoring of deep foundation pit engineering in No.1 Hospital of Jilin University, It has an in-depth analysis and research on the deformation law of foundation pit and surrounding buildings at the stage of foundation pit construction. The results show that the deformation monitoring analysis of deep foundation pit engineering can not only realize the construction information of deep foundation pit , correctly guide the engineering construction, prevent engineering accidents, but also help to further improve the theory of foundation pit deformation, provide reliable data for the design.

Application of Oppression Construction Method in Soft Soil of Deep Foundation Pit Engineering Management

2012 ◽  
Vol 594-597 ◽  
pp. 3019-3023
Author(s):  
Ying Chun Zhuang ◽  
Jie Chao Shen ◽  
Xiao Dong Pan ◽  
Jian Bo Tong
Keyword(s):  
Construction Management ◽  
Soft Soil ◽  
Engineering Management ◽  
Construction Method ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Engineering Construction ◽  
Deep Foundation Pit ◽  
Excavation Process ◽  
Management Method

Taking a project of Hangzhou as the example, a new management method named oppression construction method was proposed in soft soil of deep foundation pit engineering management. This method was based on the foundation pit excavation by layer and section. Through timely supporting of foundation pit and construction information management, the foundation pit supporting exposure time and exposed to the breadth and height was decreased. Thus the excavation process to the periphery environment influence was effectively reduced. It provided beneficial reference for the future of deep foundation pit engineering construction management.

scholarly journals Analysis of Seepage Characteristics of a Foundation Pit with Horizontal Waterproof Curtain in Highly Permeable Strata

Water ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1303
Author(s):  
Chenghua Shi ◽  
Xiaohe Sun ◽  
Shengli Liu ◽  
Chengyong Cao ◽  
Linghui Liu ◽  
...  
Keyword(s):  
Hydraulic Conductivity ◽  
Theoretical Calculation ◽  
Calculation Method ◽  
Design Method ◽  
Water Pressure ◽  
Water Inflow ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Deep Foundation Pit ◽  
Seepage Characteristics

At present, jet-grouted horizontal waterproof curtain reinforcement has become an essential method for deep foundation pit groundwater control. However, there is still a lack of an effective theoretical calculation method for horizontal waterproof curtain reinforcement, and there is little research on the seepage laws of foundation pits under different horizontal waterproof curtain conditions. Based on Darcy’s seepage theory, theoretical analysis models of deep foundation pit seepage were established considering the effect of a horizontal curtain in a highly permeable formation. Through the established models, the calculation method of the water inflow and the water pressure under the condition of a horizontal curtain was derived. Then through indoor tests, the reliability of the theoretical calculation method was verified. Furthermore, the established theoretical calculation method is used to analyze the influence of various factors on the water inflow and the water pressure, such as the ratio of hydraulic conductivity of the horizontal curtain to surrounding soil, thickness, and reinforcement position of the horizontal curtain. It is found that the hydraulic conductivity ratio has the most significant influence on the seepage characteristics of the foundation pit. Finally, the design method was applied to an example of the horizontal waterproof curtain of the foundation pit, which is located at Juyuanzhou Station in Fuzhou (China). The water inflow per unit area is 0.36 m3/d in the foundation pit, and this implies that the design method of the horizontal waterproof curtain applied for the excavation case is good and meets the requirements of design and safety.

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