Laboratory scale of rainfall’s pattern and threshold in volcanic soil slope failure

2016 ◽  
Author(s):  
R. D. Kartiko ◽  
I. A. Sadisun ◽  
A. Tohari ◽  
P. Sumintadiredja
Keyword(s):  
Slope Failure ◽  
Laboratory Scale ◽  
Soil Slope ◽  
Volcanic Soil

scholarly journals Numerical simulation of volcanic soil slope failure under coupled freeze-thaw and rainfall infiltration effects

2015 ◽  
Vol 1 (7) ◽  
pp. 5-10 ◽  
Author(s):  
Srikrishnan Siva Subramanian ◽  
Tatsuya Ishikawa ◽  
Shoji Yokohama ◽  
Tetsuya Tokoro
Keyword(s):  
Numerical Simulation ◽  
Slope Failure ◽  
Rainfall Infiltration ◽  
Soil Slope ◽  
Volcanic Soil ◽  
Freeze Thaw

Research on the Ecological Protection Mechanism and Applied of Expansive Soil Slope

2014 ◽  
Vol 501-504 ◽  
pp. 359-367
Author(s):  
Feng Zhou ◽  
Kai Zhang ◽  
Ying Chun Tang
Keyword(s):  
Slope Failure ◽  
Expansive Soil ◽  
Treatment Method ◽  
Engineering Properties ◽  
Soil Slope ◽  
Protection Mechanism ◽  
Temperature Changes ◽  
Ecological Protection ◽  
Slope Treatment ◽  
Vegetation Formation

This paper summarizes and analyzes the basic concepts and ecological protection mechanism for expansion geotechnical slope failure mechanism and the resulting impact on the shallow, traction engineering properties such as analysis, proposed ecological slope of expansive soil slope mechanism of action: vegetation system by improving internal slope soil moisture and temperature changes affect the atmosphere and thus effectively reduce the depth. Vegetation root through reinforced anchoring, delay time and improving soil hydration ductility such as the role played good strength enhancement. Vegetation formation can effectively improve the damaged outer slope interface morphology, to restore the ecological environment and landscape effect. Integrating the past experience on expansive soil slope treatment, this paper provide a slope treatment method used in Nanning metro Tunli section, these will provide reference for the expansive soil slope ecological management.

scholarly journals Numerical Analysis of Soil Slope Stabilization by Soil Nailing Technique

2019 ◽  
Vol 9 (4) ◽  
pp. 4469-4473
Author(s):  
D. A. Mangnejo ◽  
S. J. Oad ◽  
S. A. Kalhoro ◽  
S. Ahmed ◽  
F. H. Laghari ◽  
...  
Keyword(s):  
Factor Of Safety ◽  
Slope Failure ◽  
Limit Equilibrium ◽  
Slope Instability ◽  
Soil Nailing ◽  
Soil Slope ◽  
Prevention Measures ◽  
Soil Nail ◽  
Soil Shear Strength ◽  
Nail Diameter

Slope instability may be a result of change in stress conditions, rise in groundwater table and rainfall. Similarly, many slopes that have been stable for several years can abruptly fail due to changes in geometry, weak soil shear strength or as the effect of an external force. Debris flows (i.e. slope failures) take place without any warning and can have devastating results. So, it is vital to understand the slope failure mechanism and adopt safety prevention measures. Soil nailing is one of the widely used stabilization techniques for soil slopes. In this study, soil nail technique is proposed to upgrade the existing slope in clay. A parametric study was conducted to understand the effects of different nail diameter (i.e. 25mm and 40mm) and nail inclination (i.e. 200, 250, 300, 350 and 400) on slope stability. Morgenstern-Price (i.e. limit equilibrium) method was used to determine the factor of safety of the slope. It was found that the factor of safety of the existing slope improved significantly with three rows of 40mm diameter nail at an inclination of 400.

scholarly journals Geohazard at volcanic soil slope in cold regions and its influencing factors

2015 ◽  
Vol 1 (1) ◽  
pp. 1-20 ◽  
Author(s):  
Tatsuya Ishikawa ◽  
Tetsuya Tokoro ◽  
Miura Seiichi
Keyword(s):  
Influencing Factors ◽  
Soil Slope ◽  
Volcanic Soil ◽  
Cold Regions

scholarly journals Erosion Failure of a Soil Slope by Heavy Rain: Laboratory Investigation and Modified GA Model of Soil Slope Failure

2019 ◽  
Vol 16 (6) ◽  
pp. 1075 ◽  
Author(s):  
Xiaofei Jing ◽  
Yulong Chen ◽  
Changshu Pan ◽  
Tianwei Yin ◽  
Wensong Wang ◽  
...  
Keyword(s):  
Laboratory Investigation ◽  
Slope Failure ◽  
Slope Angle ◽  
Heavy Rain ◽  
Annual Rainfall ◽  
Soil Slope ◽  
Saturated Zone ◽  
Wetting Front ◽  
Rainfall Condition ◽  
The Impact

Rainfall has been identified as one of the main causes for slope failures in areas where high annual rainfall is experienced. The slope angle is important for its stability during rainfall. This paper aimed to determine the impact of the angle of soil slope on the migration of wetting front in rainfall. The results proved that under the same rainfall condition, more runoff was generated with the increase of slope angle, which resulted in more serious erosion of the soil and the ascent of wetting front. A modified Green-Ampt (GA) model of wetting front was also proposed considering the seepage in the saturated zone and the slope angle. These findings will provide insights into the rainfall-induced failure of soil slopes in terms of angle.

Research on the Soil Slope Stability Based on Soil Strength Deterioration in Seasonal Frozen Areas

2011 ◽  
Vol 243-249 ◽  
pp. 4270-4273 ◽  
Author(s):  
Qi Ge ◽  
He Wu ◽  
Ya Feng Gong
Keyword(s):  
Slope Stability ◽  
Slope Failure ◽  
Experimental Tests ◽  
Melting Process ◽  
Road Transport ◽  
Shallow Landslide ◽  
Soil Slope ◽  
Strength Deterioration ◽  
Freezing Soil ◽  
The Road

Soil slope is one of the main parts of the road engineering. The stability of the slope is an essential prerequisite to ensure the safe operation of road transport. In seasonal frozen regions, shallow landslide hazards in soil slopes usually happen, which pose a serious threat to road safety operations. During the melting process, there forms stagnant water lubrication between the melting soil and freezing soil interface, which constitutes the weak interface of landslide hazard. Special methods to form the freezing – thawing (F-T) surface is designed, and takes consider the interface strength as the foundation of experimental tests, then opening to research the soil slope stability. Safety factor modification of the soil slope is presented. The conclusions of this paper present well theoretical and applied value to the regional slope failure analysis.

Sign in / Sign up

Export Citation Format

Share Document