Experimental study of the effect of vertical acceleration component on the slope stability

Rainfall is a key factor that triggers failure of slopes. Due to development of western China, there are more and more slopes with soils mixed rocks, with rainfall effect, some of them will fail, which will lead to loss of life and property. In this paper, a laboratory model was used to simulate to study slope failure of this type under rainfall. Along with rainfall, water infiltrated into the slope, and water content increased steadily and kept almost constant, settlement of inner zone increased with different magnitude and reached almost constant value, and cracks formed on the top, small scale failure occurred.

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Approbation of the Method for Examining the Performance of Seafloor Observatory Sensors Using Distant Earthquakes Records

Frontiers in Earth Science ◽

10.3389/feart.2021.661337 ◽

2021 ◽

Vol 9 ◽

Author(s):

Mikhail Nosov ◽

Viacheslav Karpov ◽

Kirill Sementsov ◽

Sergey Kolesov ◽

Hiroyuki Matsumoto ◽

...

Keyword(s):

Linear Relationship ◽

Direct Consequence ◽

Forced Oscillations ◽

Vertical Acceleration ◽

Frequency Range ◽

Calibration Accuracy ◽

Seafloor Pressure ◽

Seafloor Observatory ◽

Acceleration Component

An algorithm is presented for testing the calibration accuracy of both z-accelerometers and pressure gauges (PG) installed in seafloor observatories. The test is based on the linear relationship between the vertical acceleration component of the seafloor movement and variations of the seafloor pressure, which is a direct consequence of Newton's 2-nd law and holds valid in the frequency range of “forced oscillations.” The operability of the algorithm is demonstrated using signals registered by 28 observatories of the DONET-2 system during 4 earthquakes of magnitude Mw ~ 8 that took place in 2018-2019 at epicentral distances from 55° up to 140°.

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Experimental study on the effects of tree planting on slope stability

Landslides ◽

10.1007/s10346-020-01348-z ◽

2020 ◽

Vol 17 (4) ◽

pp. 1021-1035 ◽

Cited By ~ 2

Author(s):

Huijuan Lan ◽

Daojie Wang ◽

Songtang He ◽

Yingchao Fang ◽

Wenle Chen ◽

...

Keyword(s):

Experimental Study ◽

Slope Stability ◽

Tree Planting

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Effects of root architecture on pore-water pressure distributions and slope stability : analytical and experimental study

10.14711/thesis-991012551768803412 ◽

2017 ◽

Author(s):

Hongwei Liu

Keyword(s):

Experimental Study ◽

Slope Stability ◽

Pore Water ◽

Root Architecture ◽

Pore Water Pressure ◽

Water Pressure ◽

Pressure Distributions

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Experimental study of stress-dependent soil-water characteristics and their applications on numerical analysis of slope stability

10.14711/thesis-b836753 ◽

2004 ◽

Author(s):

Chun Hon Lai

Keyword(s):

Experimental Study ◽

Numerical Analysis ◽

Slope Stability ◽

Soil Water ◽

Water Characteristics ◽

Stress Dependent

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Experimental study on rock slope stability by the use of a centrifuge

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts ◽

10.1016/0148-9062(84)91089-1 ◽

1984 ◽

Vol 21 (4) ◽

pp. 152

Keyword(s):

Experimental Study ◽

Slope Stability ◽

Rock Slope ◽

Rock Slope Stability

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The Effect of the Vertical Acceleration on Stability Assessment of Seismically Loaded Earth Dams

Archives of Hydro-Engineering and Environmental Mechanics ◽

10.1515/heem-2016-0007 ◽

2016 ◽

Vol 63 (2-3) ◽

pp. 101-120 ◽

Cited By ~ 2

Author(s):

Aleksandra Korzec

Keyword(s):

Slope Stability ◽

Vertical Component ◽

Vertical Acceleration ◽

Permanent Displacement ◽

Ground Acceleration ◽

Safety Criterion ◽

Acceleration Time ◽

Acceleration Time Histories ◽

Time Histories ◽

Block Approach

AbstractIn the assessment of slope stability, the vertical component of acceleration is commonly neglected. However, signal analyses performed on a large number of acceleration time histories have revealed that the vertical peak ground acceleration can be as high as the horizontal one. In this paper, a method of slope stability analysis regarding the vertical component of acceleration is proposed. It considers a rigid body system affected by the acceleration time histories in both horizontal and vertical directions. In a general case, the strength of the contact between acceleration components is time dependent. Parametric analysis was performed on the basis of cyclic harmonic loading, assuming a safety criterion in the form of permanent displacement. The results, for both harmonic and real acceleration time histories, were compared with the results of the commonly used Newmark’s sliding block approach, which revealed significant differences in permanent displacements calculated by the two methods.

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