Experimental study on the effects of tree planting on slope stability

Landslides ◽  
2020 ◽  
Vol 17 (4) ◽  
pp. 1021-1035 ◽  
Author(s):  
Huijuan Lan ◽  
Daojie Wang ◽  
Songtang He ◽  
Yingchao Fang ◽  
Wenle Chen ◽  
...  
Keyword(s):  
Experimental Study ◽  
Slope Stability ◽  
Tree Planting

Experimental Study on Slope Stability with Soil Mixed Rocks under Rainfall

2012 ◽  
Vol 170-173 ◽  
pp. 506-510
Author(s):  
Fang Cai Zhu ◽  
Yue Yang ◽  
Chun Ming Chen
Keyword(s):  
Experimental Study ◽  
Slope Stability ◽  
Water Content ◽  
Slope Failure ◽  
Western China ◽  
Laboratory Model ◽  
Small Scale ◽  
Loss Of Life ◽  
Key Factor ◽  
Scale Failure

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.

scholarly journals Experimental Study on Rock Slope Stability by the Use of a Centrifuge

1979 ◽  
Vol 95 (1091) ◽  
pp. 7-14
Author(s):  
Hiroshi OKAMURA ◽  
Katsuhiko SUGAWARA ◽  
Masatsugu AKIMOTO ◽  
Satoshi KUBOTA ◽  
Osamu KANESHIGE
Keyword(s):  
Experimental Study ◽  
Slope Stability ◽  
Rock Slope ◽  
Rock Slope Stability

scholarly journals EXPERIMENTAL STUDY OF ROCK TEXTURES ON SLOPE STABILITY

2010 ◽  
Vol 33 (3) ◽  
pp. 233-237
Author(s):  
Mostafa Ahmed Ismail ◽  
Tageldin Eltayeb ◽  
Alaeldin Mohamed Elhassan
Keyword(s):  
Experimental Study ◽  
Slope Stability

Evaluation of the effect of hysteretic flow and root system on shallow landslide

Soil Research ◽  
2012 ◽  
Vol 50 (7) ◽  
pp. 616 ◽  
Author(s):  
Kuo-Chen Ma ◽  
Yong-Jun Lin ◽  
Shyh-Yuan Maa ◽  
Yih-Chi Tan
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Root System ◽  
Soil Water ◽  
Economic Benefits ◽  
Shallow Landslide ◽  
Slope Stability Analysis ◽  
Tree Planting ◽  
Vegetation Types ◽  
Root Strength

This paper analyses the mechanics of slope stability with regard to the hysteretic flow of unsaturated soil and the root system of the covering vegetation. The hysteresis of the soil water retention curves and root strength are important factors in the evaluation of unsaturated shear strength. Engineers should consider how the transportation of the soil water content and the plant root strength influence evaluation of surficial slope stability analysis. The integrated slope stability analysis considering the hysteretic flow and root strength were calculated on variations of the safety factor (SF) and in accordance with different infiltration profiles and several species of vegetation. The results show that it is possible to predict shallow landslide on unsaturated slopes covered by different vegetation types. Tree planting, in combination with mechanical reinforcement, on the slope’s toe was found to improve stability, in addition to having economic benefits. This process allows for the selection and comparison of combinations and densities of vegetation types, in order to find the optimum location for increased SF. This will quickly improve shallow slope stability before it is destroyed. A better understanding of the process mechanics, as provided by the model, is critical for a reliable and appropriate design for slope stabilisation.

Experimental study on the restoration from a tilt-azimuth series for improvement in resolution

1995 ◽  
Vol 53 ◽  
pp. 636-637
Author(s):  
Norio Baba ◽  
Norihiko Ichise ◽  
Syunya Watanabe
Keyword(s):  
Experimental Study ◽  
Spherical Aberration ◽  
Incident Beam ◽  
Optical Parameters ◽  
Beam Tilting ◽  
Illumination Method ◽  
Restoration Method ◽  
Illumination Mode

The tilted beam illumination method is used to improve the resolution comparing with the axial illumination mode. Using this advantage, a restoration method of several tilted beam images covering the full azimuthal range was proposed by Saxton, and experimentally examined. To make this technique more reliable it seems that some practical problems still remain. In this report the restoration was attempted and the problems were considered. In our study, four problems were pointed out for the experiment of the restoration. (1) Accurate beam tilt adjustment to fit the incident beam to the coma-free axis for the symmetrical beam tilting over the full azimuthal range. (2) Accurate measurements of the optical parameters which are necessary to design the restoration filter. Even if the spherical aberration coefficient Cs is known with accuracy and the axial astigmatism is sufficiently compensated, at least the defocus value must be measured. (3) Accurate alignment of the tilt-azimuth series images.

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