Application Analysis of Foundation Pit Monitoring Technology in Geotechnical Engineering

A project in Xiamen setting three basement, the surrounding environment is more complex.the depth of the foundation pit is 11.0-16.1m, considering the duration, cost, environment and other factors, different positions of the foundation pit is respectively realized by adoption of double-row piles, pile-anchor retaining, pile-strut bracing structure and other forms of support, excavation practice proved that this composite support effectively support the pit, facilitate the construction, and the cost is relatively low.

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Research of Controlling for Pile-Anchor Joint Supporting Structure on Deformation of Deep Foundation Pits

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.261-263.1809 ◽

2011 ◽

Vol 261-263 ◽

pp. 1809-1813

Author(s):

Jin Biao Chen ◽

Qiang Hu ◽

Yuan Wu Zhou

Keyword(s):

Soil Properties ◽

Deformation Mechanism ◽

Geotechnical Engineering ◽

Reliability Theory ◽

Deep Foundation ◽

Foundation Pit ◽

Deep Foundation Pit ◽

Supporting Structure ◽

Foundation Deformation ◽

The Stability

The excavation of deep foundation pit is very complex in the field of geotechnical engineering, how to control the deformation of deep foundation pit and protect the environment is of great significance. This paper analyzed the deformation mechanism of pile-anchor joint supporting structure in detail, established a model for deformation controlling based on the reliability theory, and then analyzed the sensitivities of prestressed, pile stiffness, spacing and soil properties to foundation deformation. Combined with an engineering example, this paper verifies the stability and effectiveness of the model for deformation controlling. This study will provide some reference to similar projects.

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The Simulation of Foundation Pit Construction on Basis of Strength Reduction Method and the Research on its Stability

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.926-930.699 ◽

2014 ◽

Vol 926-930 ◽

pp. 699-702

Author(s):

Tao Yang

Keyword(s):

Reduction Method ◽

Geotechnical Engineering ◽

Three Dimensional ◽

Strength Reduction ◽

Good Stability ◽

Stress And Strain ◽

Strength Reduction Method ◽

Research Model ◽

Foundation Pit ◽

High Security

In 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 foundation pit applies the scheme of combing continous wall and inner support. Further more, this paper makes estimation on the machenical stability in varied construction stages of foundation pit and use strength deduction method to analyze the stress and strain conditions of foundation pit in different working states, the results acquired from which researches have certain reference to the engineers.

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Numerical Simulation Analysis of Isolation Pile-Steel Shotcrete Combined Support of Deep Foundation Pit Excavation

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.638-640.507 ◽

2014 ◽

Vol 638-640 ◽

pp. 507-511

Author(s):

Chong Ma ◽

Xin Gang Wang ◽

Bin Hu ◽

Hong Bing Zhan

Keyword(s):

Numerical Simulation ◽

Geotechnical Engineering ◽

Rapid Development ◽

Engineering Problem ◽

Simulation Software ◽

Deep Foundation ◽

Foundation Pit ◽

Support Design ◽

Deep Foundation Pit ◽

Design And Construction

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.

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Applications of distributed opto-electronic sensing technologies in geotechnical engineering monitoring

E3S Web of Conferences ◽

10.1051/e3sconf/201913801006 ◽

2019 ◽

Vol 138 ◽

pp. 01006

Author(s):

Maocai Zhao ◽

Sergey Kudryavtsev ◽

Semen Bugunov ◽

Vyacheslav Shemyakin ◽

Yuliya Bugunova

Keyword(s):

Geotechnical Engineering ◽

Bridge Engineering ◽

Foundation Engineering ◽

Foundation Pit ◽

Sensing Technology ◽

Optical Fiber Sensing ◽

Distributed Optical Fiber ◽

Electronic Sensing ◽

Far Eastern ◽

Engineering Monitoring

This paper summarizes the application status of distributed optical fiber sensing technology in the main fields of geotechnical engineering monitoring in China and Far Eastern Russia, including pile foundation engineering, foundation pit engineering, slope engineering, tunnel and bridge engineering monitoring.

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