Determination of lateral soil pressure against retaining walls with allowance for nonplanar slip surfaces and kinematic factors

1997 ◽  
Vol 34 (1) ◽  
pp. 15-21
Author(s):  
M. P. Dubrovskii
Keyword(s):  
Retaining Walls ◽  
Soil Pressure ◽  
Slip Surfaces

scholarly journals Landslide geometry and activity in Villa de la Independencia (Bolivia) revealed by InSAR and seismic noise measurements

Landslides ◽  
2021 ◽  
Author(s):  
Chuang Song ◽  
Chen Yu ◽  
Zhenhong Li ◽  
Veronica Pazzi ◽  
Matteo Del Soldato ◽  
...  
Keyword(s):  
Time Series ◽  
Seismic Noise ◽  
Slip Surface ◽  
Inversion Method ◽  
Subsurface Structures ◽  
Slip Surfaces ◽  
Landslide Volume ◽  
Noise Measurements ◽  
Landslide Body

AbstractInterferometric Synthetic Aperture Radar (InSAR) enables detailed investigation of surface landslide movements, but it cannot provide information about subsurface structures. In this work, InSAR measurements were integrated with seismic noise in situ measurements to analyse both the surface and subsurface characteristics of a complex slow-moving landslide exhibiting multiple failure surfaces. The landslide body involves a town of around 6000 inhabitants, Villa de la Independencia (Bolivia), where extensive damages to buildings have been observed. To investigate the spatial-temporal characteristics of the landslide motion, Sentinel-1 displacement time series from October 2014 to December 2019 were produced. A new geometric inversion method is proposed to determine the best-fit sliding direction and inclination of the landslide. Our results indicate that the landslide is featured by a compound movement where three different blocks slide. This is further evidenced by seismic noise measurements which identified that the different dynamic characteristics of the three sub-blocks were possibly due to the different properties of shallow and deep slip surfaces. Determination of the slip surface depths allows for estimating the overall landslide volume (9.18 · 107 m3). Furthermore, Sentinel-1 time series show that the landslide movements manifest substantial accelerations in early 2018 and 2019, coinciding with increased precipitations in the late rainy season which are identified as the most likely triggers of the observed accelerations. This study showcases  the potential of integrating InSAR and seismic noise techniques to understand the landslide mechanism from ground to subsurface.

Soil Pressure on Retaining Walls

1998 ◽  
pp. 184-203
Author(s):  
George E. Lazebnik ◽  
Gregory P. Tsinker
Keyword(s):  
Retaining Walls ◽  
Soil Pressure

Determination of Trapezoidal Profiles for Retaining Walls

1935 ◽  
Vol 100 (1) ◽  
pp. 1116-1127
Author(s):  
A. J. Sutton Pippard
Keyword(s):  
Retaining Walls

DEVELOPMENT OF A HYBRID SOIL PRESSURE SENSOR AND ITS APPLICATION TO SOIL COMPACTION

2020 ◽  
Author(s):  
Mark Talesnick ◽  
Moti Ringel ◽  
Kyle Rollins
Keyword(s):  
Pressure Sensor ◽  
Soil Compaction ◽  
Compaction Pressure ◽  
Confining Pressure ◽  
Soil Pressure ◽  
Compaction Process ◽  
Vibratory Compaction ◽  
Soil Strain ◽  
The Relationship

A new soil pressure sensor based on a combination of the deflecting membrane and fluid filled approaches has been developed. The advantages of this combined approach are that issues of sensor compliance are eliminated without reducing the effectiveness of the sensor to be used for dynamic measurements. Calibration and verification testing performed under controlled laboratory conditions illustrate these benefits. The new system was implemented in a full-scale field trial which involved the construction of a compacted engineered fill 1.8 m in height. As each layer of fill was placed and compacted vertical in-soil pressure and vertical in-soil strain were continuously measured. During the vibratory compaction process both vertical soil pressure and vertical soil strain histories were captured in each layer. The data collected allowed for the determination of fill stiffness for both static and dynamic conditions. The results illustrate the effect of both confining pressure and strain level on fill stiffness. The relationship between compaction pressure and depth is clearly defined.

scholarly journals Non-limit passive soil pressure on rigid retaining walls

2017 ◽  
Vol 27 (3) ◽  
pp. 581-587
Author(s):  
Guotao Dou ◽  
Junwu Xia ◽  
Wenjie Yu ◽  
Fang Yuan ◽  
Weigang Bai
Keyword(s):  
Retaining Walls ◽  
Soil Pressure

scholarly journals Experimental Assessments of Treating Effect on Retaining Walls for Loess Slopes under Long-Term Rainfall

2021 ◽  
Vol 2021 ◽  
pp. 1-23
Author(s):  
Guodong Liu ◽  
Zhijun Zhou ◽  
Shiqiang Xu ◽  
Wenjing Mi
Keyword(s):  
Retaining Wall ◽  
Retaining Walls ◽  
Shaanxi Province ◽  
Test Results ◽  
Soil Pressure ◽  
Huge Number ◽  
Infiltration Process ◽  
Rainwater Infiltration ◽  
Large Soil

Failures of treated slope occurring in China are at a continually increasing rate, and the huge number of treated loess slopes is calling for a postevaluation; however, no mature technique is in place. Based on an actual loess slope in Shaanxi Province treated by retaining wall, indoor geotechnical and model tests were conducted, revealing the rainwater infiltration process and pressure variations behind the wall, and the processes were then adopted to perform the postevaluation of the treated slope. The results proposed that effectual measures hence needed to be taken so as to avert rainwater infiltrating along the wall face and back or flowing through the wall body, which can soften the soil of the slope bottom. Although the wet front was developed by the rainfall process, it cannot be used as the boundary between saturated and unsaturated areas. Despite the peculiarly large soil pressure upon the wall back at the top layer, the soil pressure increases to a large value and then decreases with the depth. The model test results and investigation results were used to conduct the postevaluation of the prototype slope, which formed a postevaluation frame relevant to other slope postevaluations.

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