Numerical Simulation on Soil Pressure Distribution Characteristics of Gravity Retaining Wall

2013 ◽  
Vol 477-478 ◽  
pp. 562-566
Author(s):  
Fang Ding He ◽  
Guang Jun Guo ◽  
Zhi Dong Zhou ◽  
Jian Qing Wu
Keyword(s):  
Numerical Simulation ◽  
Pressure Distribution ◽  
Retaining Wall ◽  
Critical Length ◽  
Distribution Theory ◽  
Simulation Software ◽  
Distribution Characteristics ◽  
Soil Pressure ◽  
Linear Distribution ◽  
Gravity Retaining Wall

The anchor plays a very important role in gravity retaining wall. The displacement of retaining and soil pressure distribution with anchor is different from that without anchor. The numerical simulation software FLAC3D is used to analysis the soil pressure distribution characteristics of gravity retaining wall. The results show that the anchor plays a supporting role in gravity retaining wall. There is a critical length in the anchor in gravity retaining wall. The soil pressure distribution of gravity retaining wall with anchor does not conform to the classical Coulomb linear distribution theory and more research is needed for the soil pressure distribution theory. The research has important guiding significance on the design and construction development of gravity retaining wall.

Study on Lateral Earth Pressure of Anchored Retaining Wall

2013 ◽  
Vol 353-356 ◽  
pp. 312-317
Author(s):  
Ying Yong Li ◽  
Li Zhi Zheng ◽  
Hong Bo Zhang ◽  
Xiu Guang Song ◽  
Zhi Chao Xue
Keyword(s):  
Numerical Simulation ◽  
Pressure Distribution ◽  
Model Test ◽  
Retaining Wall ◽  
Field Tests ◽  
Earth Pressure ◽  
Soil Pressure ◽  
Gravity Retaining Wall ◽  
Lateral Earth Pressure ◽  
The Stability

In order to ensure the security of gravity retaining wall in the high fill subgrade, the design of gravity retaining wall with anchors is proposed,the characteristic of the new wall is that comment anchors are added to the traditional gravity retaining wall,by friction anchors provide lateral pull to the wall so the stability of the new wall is improved. Because of the constraints of anchors, the lateral free deformation is influenced and the soil pressure distribution is very complicated, field tests showed that soil pressure distribution is nonlinear and pressure concentrate in anchoring position. In order to reveal the supporting mechanism of retaining wall and propose the soil pressure formula, the model test of anchor retaining wall is made and numerical simulation is done. The results show that soil pressure appears incresent above the anchor and decreasing below the anchor, the soil pressre also grew larger away from the anchor proximal in the horizontal direction.

Research on the Level Soil Pressure of Multi-Stage Retaining Wall in Mountain Road

2012 ◽  
Vol 204-208 ◽  
pp. 1929-1932
Author(s):  
Peng Li ◽  
Hai Tao Wan
Keyword(s):  
Pressure Distribution ◽  
Retaining Wall ◽  
Calculation Formula ◽  
Soil Pressure ◽  
Gravity Retaining Wall ◽  
Construction Design ◽  
Distribution Form ◽  
Multi Stage ◽  
Pressure Calculation ◽  
Formal Construction

This study presents the research of soil pressure distribution form of multi-stage mountain gravity retaining wall through specific engineering tests. There has a further discussion on the soil pressure calculation formula of the multi-stage gravity retaining wall in different conditions, which aims at providing the useful reference for the formal construction design.

Relaxation Laws of Anchor on Pressure Dispersive Retaining Wall

2014 ◽  
Vol 672-674 ◽  
pp. 1863-1867
Author(s):  
Jian Qing Wu ◽  
Ying Yong Li ◽  
Hong Bo Zhang ◽  
Xiu Guang Song ◽  
Qing Yu Meng ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Simulation Model ◽  
Retaining Wall ◽  
Anchor Plate ◽  
Soil Pressure ◽  
Overall Stability

In order to study anchor relaxation of pressure dispersive retaining wall, the numerical simulation model was designed to simulate the retaining wall with single anchor plate. The results showed that the pressure dispersive retaining wall had good overall stability. Anchor Relaxtion had two sudden changes. As a result, the lateral soil pressure near the anchor had been released and the displacement Significantly increased.

Numerical Simulation for Dynamic Response of EPS Geofoam Seismic Buffers

2011 ◽  
Vol 378-379 ◽  
pp. 256-261
Author(s):  
Yi Min Wang ◽  
Huan Li ◽  
Hui Zhang
Keyword(s):  
Numerical Simulation ◽  
Dynamic Response ◽  
Retaining Wall ◽  
Numerical Data ◽  
Good Effect ◽  
Lagrangian Analysis ◽  
Soil Pressure ◽  
Eps Geofoam ◽  
Pressure Time ◽  
Dynamic Time

Numerical simulation for dynamic response of EPS geofoam seismic buffers placed behind the rigid retaining walls was carried out with the Fast Lagrangian Analysis for Continuum method (FLAC) .The considerations of setting boundary condition of the numerical model, inputting and correcting the dynamic time series of seismic acceleration, and selecting the proper damping were discussed. The coincidence relations of compression-time for EPS geofoam buffers and the horizontal soil pressure -time for retaining wall were numerically calculated by using the proposed model. The calculating results were compared with the physical testing results. The comparisons showed that there were good agreements between the numerical data and the measured data. The numerical results indicate that EPS panels placed between the rigid retaining wall and the backfill soil have a good effect on reducing horizontal earth force during shaking acceleration and can act as seismic buffers against earthquake. The FLAC model provides a feasible way to analyze the dynamic response of EPS geofoam seismic buffers for further researches.

Comparative Analysis on Different Types of Anchor Reinforcing Gravity Retaining Wall

2013 ◽  
Vol 477-478 ◽  
pp. 567-571
Author(s):  
De Fu Ma ◽  
Lei Guo ◽  
Jian Qing Wu ◽  
Zhi Dong Zhou
Keyword(s):  
Numerical Simulation ◽  
Comparative Analysis ◽  
Bearing Capacity ◽  
Retaining Wall ◽  
Lateral Deformation ◽  
Gravity Retaining Wall ◽  
Pressure Distributions ◽  
Different Types ◽  
Applicable Range ◽  
New Type

A new type of gravity retaining wall combining with anchor is developed to support higher embankment. The retaining wall has the advantage of high safety, lateral deformation small, wide applicable range and low requirements for the foundation bearing capacity. The pressure distributions of gravity retaining wall with anchor have changed a lot. The change will have a significant impact on structures. In order to reveal the gravity retaining wall combining anchor pressure distributions, numerical simulation was done. The result shows that it has no obvious differences to its force state when retaining wall is reinforced with horizontal and oblique anchors, The former is applicable to the new embankment retaining wall support and the latter is applicable to the original retaining wall reinforcement.

Mountain Road Multi-Level Retaining Wall Horizontal Earth Pressure Law

2013 ◽  
Vol 671-674 ◽  
pp. 1217-1220
Author(s):  
Yong Wei Wang ◽  
Hong Xia Li ◽  
Yan Qin Guo
Keyword(s):  
Pressure Distribution ◽  
Retaining Wall ◽  
Earth Pressure ◽  
Measured Data ◽  
Pressure Data ◽  
Soil Pressure ◽  
Distribution Law ◽  
Height Variation ◽  
Filling Height ◽  
Multi Level

Combining with a mountain highway retaining wall earth pressure measured data, carried out a detailed study of the of multiple retaining wall back soil pressure distribution law, based on multi-level retaining wall measured horizontal earth pressure data mountainous retaining wallshorizontal earth pressure formula is derived, summed up the horizontal earth pressure with filling height variation.

scholarly journals Factor Affecting the Magnitude and the Direction of the Pressure Exerted on the Gravity Retaining Wall

2020 ◽  
Vol 9 (5) ◽  
pp. 1340-1343
Keyword(s):  
Water Table ◽  
Retaining Wall ◽  
Earth Pressure ◽  
Soil Pressure ◽  
Gravity Retaining Wall ◽  
The Earth ◽  
Backfill Soil ◽  
Dry Soil ◽  
The Stability ◽  
External Loads

Gravity retaining wall are structures used to retain the soil by its weight .the stability of such type of walls depend on the magnitude and direction of the horizontal forces exerted by soil . it found that there is many factors affect the value and the acting point of acting. Based on this, a study was conducted to investigate the effect of water table, external vertical loads, sloping of the backfill and the type of the backfill soil. It show that, the value of the horizontal soil pressure increase from147KN/m' on dry soil to about 307 KN/m' as the soil become saturated.also,effect of external loads are studied , and show its increase the total horizontal forces of the soil pressure. Sloping the backfill soil behind the retaining wall also great effect on the earth pressure. The type of the backfill soil behind the retaining wall also investigated and found its effect of the earth forces.

Analysis and Calculation of Earth Pressure Based on Nonlinear Theory

2014 ◽  
Vol 1055 ◽  
pp. 109-113
Author(s):  
Wen Zhang ◽  
Bin Zhang ◽  
Wei Hong Zhang ◽  
Sheng Wei Li ◽  
Yan Zhen Luo ◽  
...  
Keyword(s):  
Pressure Distribution ◽  
Retaining Wall ◽  
Test Material ◽  
Soil Pressure ◽  
Soil Arching ◽  
Arching Effect ◽  
Soil Arching Effect ◽  
Unit Model ◽  
Pressure Calculation ◽  
Non Linear

The results of the model test and field test which are proposed in soil pressure calculation indicate that soil pressure distribution is mostly non-linear. Using two models, the soil arching effect and horizontal unit by two theories of rigid retaining wall and non-linear soil pressure, combine with test material to calculate and analysis. The soil arching effect model calculated value on the upper part of retaining wall is higher than horizontal unit model, closer to the static soil pressure, which mainly relates to the upper part of the soil arching effect expresses in sufficiently. As the soil arching effect expresses in the lower part, its value is lower than horizontal unit model; both total soil pressure are the same; the resultant force point of the soil arching effect is higher than the horizontal unit model, the results of calculation and analyses are more well coincide to the virtual discipline. Basing on it, putting forward a kind of soil pressure calculation model which considers the space-time effect and reflects the soil pressure distribution is non-linear.

Research on Water Temperature Change of Hot Dry Rock Fracture Storage Layer in Shenyang

2014 ◽  
Vol 580-583 ◽  
pp. 349-354
Author(s):  
Jian Bin Zhao ◽  
Hai Dong Song ◽  
Di Li ◽  
Zheng Zhang
Keyword(s):  
Numerical Simulation ◽  
Water Temperature ◽  
Temperature Change ◽  
Research Method ◽  
Rock Fracture ◽  
Water Flow Rate ◽  
Simulation Software ◽  
Heat Energy ◽  
Linear Distribution ◽  
Hot Dry Rock

Hot dry rock(HDR) provides heat through fracture storage layer. The purpose of research on water temperature change of hot dry rock fracture is to study that whether heat energy can satisfy five months winter heating or not. Research method is establishing model of hot dry rock fractured storage layer by means of numerical simulation software FLUENT according to the rock physical properties in Shenyang region. The depth of drilling is 4000m and the water flow rate is 1cm/s. Research principle is high temperature underground rock transfer heat to medium water in the fracture by coupling. Conclude water temperature change equation every two weeks. The results of the study is that fracture water temperature distribution can be approximated taken as linear distribution. According to the slope K, we can conclude water temperature change formula(3.10), and we can use it to infer fracture water temperature.

Research on the Supporting Mechanism of Gravity Retaining Wall with Grouting Anchor in High Filling Embankment

2011 ◽  
Vol 90-93 ◽  
pp. 514-517
Author(s):  
Hong Bo Zhang ◽  
Li Zhi Zheng ◽  
Xiu Guang Song ◽  
Jun Ping Xu
Keyword(s):  
Axial Force ◽  
Lateral Pressure ◽  
Retaining Wall ◽  
Soil Pressure ◽  
Vertical Pressure ◽  
Gravity Retaining Wall ◽  
New Type ◽  
Ground Stress

In order to make up for defects, including big gravity stress, large mansory and higher ground stress, in traditional gravity retaining wall, a new type of gravity retainwall combining grouting anchor is developed to support higher embankment. By installing soil pressure cells and anchor dynamometric cells, the vertical pressure on the bottom, lateral pressure on the retaining wall and the axial force of grouting anchor are analyzed during filling of embankment.

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