Pub Date : 2020-12-18DOI: 10.5772/INTECHOPEN.94136
Gaurav Singh, Raj Kumar, D. Jinger, Dinesh Dhakshanamoorthy
The 120 countries have committed to set the UNCCD sustainable development goal on achieving the land degradation neutrality by 2030 including India. The target has to be accomplished in a synergistic and cost-effective manner in accordance with countries’ specific national contexts and development priorities. Globally, the ravine landscapes are considered among the world’s most degraded ecosystems. Therefore, restoring ravines is considered a high priority item in the natural resource management programs. The vegetation cover augmented with appropriate conservation measures is the most sought restoration strategy. The engineering measures are prerequisite for slope stabilization and sustainable productive utilization in ravine ecosystem. The several methods for slope stabilization are available but only few are applied in ravine land. Therefore, in this chapter, we have covered only those slope stabilization techniques which were successfully applied for the restoration of ravine land.
{"title":"Ecological Engineering Measures for Ravine Slope Stabilization and Its Sustainable Productive Utilization","authors":"Gaurav Singh, Raj Kumar, D. Jinger, Dinesh Dhakshanamoorthy","doi":"10.5772/INTECHOPEN.94136","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.94136","url":null,"abstract":"The 120 countries have committed to set the UNCCD sustainable development goal on achieving the land degradation neutrality by 2030 including India. The target has to be accomplished in a synergistic and cost-effective manner in accordance with countries’ specific national contexts and development priorities. Globally, the ravine landscapes are considered among the world’s most degraded ecosystems. Therefore, restoring ravines is considered a high priority item in the natural resource management programs. The vegetation cover augmented with appropriate conservation measures is the most sought restoration strategy. The engineering measures are prerequisite for slope stabilization and sustainable productive utilization in ravine ecosystem. The several methods for slope stabilization are available but only few are applied in ravine land. Therefore, in this chapter, we have covered only those slope stabilization techniques which were successfully applied for the restoration of ravine land.","PeriodicalId":249418,"journal":{"name":"Slope Engineering","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115956963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-15DOI: 10.5772/intechopen.95106
A. Jha, Madhav R. Madhira
Slope failures lead to loss of life and damage to property. Slope instability of natural slope depends on natural and manmade factors such as excessive rainfall, earthquakes, deforestation, unplanned construction activity, etc. Manmade slopes are formed for embankments and cuttings. Steepening of slopes for construction of rail/road embankments or for widening of existing roads is a necessity for development. Use of geosynthetics for steep slope construction considering design and environmental aspects could be a viable alternative to these issues. Methods developed for unreinforced slopes have been extended to analyze geosynthetic reinforced slopes accounting for the presence of reinforcement. Designing geosynthetic reinforced slope with minimum length of geosynthetics leads to economy. This chapter presents review of literature and design methodologies available for reinforced slopes with granular and marginal backfills. Optimization of reinforcement length from face end of the slope and slope - reinforcement interactions are also presented.
{"title":"Geoysynthetic Reinforced Embankment Slopes","authors":"A. Jha, Madhav R. Madhira","doi":"10.5772/intechopen.95106","DOIUrl":"https://doi.org/10.5772/intechopen.95106","url":null,"abstract":"Slope failures lead to loss of life and damage to property. Slope instability of natural slope depends on natural and manmade factors such as excessive rainfall, earthquakes, deforestation, unplanned construction activity, etc. Manmade slopes are formed for embankments and cuttings. Steepening of slopes for construction of rail/road embankments or for widening of existing roads is a necessity for development. Use of geosynthetics for steep slope construction considering design and environmental aspects could be a viable alternative to these issues. Methods developed for unreinforced slopes have been extended to analyze geosynthetic reinforced slopes accounting for the presence of reinforcement. Designing geosynthetic reinforced slope with minimum length of geosynthetics leads to economy. This chapter presents review of literature and design methodologies available for reinforced slopes with granular and marginal backfills. Optimization of reinforcement length from face end of the slope and slope - reinforcement interactions are also presented.","PeriodicalId":249418,"journal":{"name":"Slope Engineering","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132202867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-10-20DOI: 10.5772/intechopen.94088
M. A. Azizi, I. Marwanza, Muhammad Kemal Ghifari, A. Anugrahadi
The 3-dimensional slope stability analysis has been developing rapidly since the last decade, and currently a number of geomechanical researchers in the world have put forward ideas for optimization of slope design related to the economics and safety of mining operations. The 3-dimensional slope stability analysis methods has answered the assumption of spatial parameters in determining safety factors and the failure probability, thus the volume of failed material and the location of the most critical slopes can be determined. This chapter discusses two methods of 3-dimensional slope stability analysis, namely the limit equilibrium method (LEM) and finite element method (FEM). LEM 3D requires an assumption of failure type with the variable of analysis are the maximum number of columns, the amount of grid points, increment radius, and type of slip surface. On the other hand, FEM 3D requires an assumption of convergence type, absolute force and energy, with the variable of analysis are mesh type and maximum number of iterations. LEM 3D shows that the cuckoo algorithm is reliable in obtaining position and shape of slip surface. Meanwhile FEM 3D, the optimum iteration number needs to be considered to improve analysis efficiency and preserving accuracy.
{"title":"Three Dimensional Slope Stability Analysis of Open Pit Mine","authors":"M. A. Azizi, I. Marwanza, Muhammad Kemal Ghifari, A. Anugrahadi","doi":"10.5772/intechopen.94088","DOIUrl":"https://doi.org/10.5772/intechopen.94088","url":null,"abstract":"The 3-dimensional slope stability analysis has been developing rapidly since the last decade, and currently a number of geomechanical researchers in the world have put forward ideas for optimization of slope design related to the economics and safety of mining operations. The 3-dimensional slope stability analysis methods has answered the assumption of spatial parameters in determining safety factors and the failure probability, thus the volume of failed material and the location of the most critical slopes can be determined. This chapter discusses two methods of 3-dimensional slope stability analysis, namely the limit equilibrium method (LEM) and finite element method (FEM). LEM 3D requires an assumption of failure type with the variable of analysis are the maximum number of columns, the amount of grid points, increment radius, and type of slip surface. On the other hand, FEM 3D requires an assumption of convergence type, absolute force and energy, with the variable of analysis are mesh type and maximum number of iterations. LEM 3D shows that the cuckoo algorithm is reliable in obtaining position and shape of slip surface. Meanwhile FEM 3D, the optimum iteration number needs to be considered to improve analysis efficiency and preserving accuracy.","PeriodicalId":249418,"journal":{"name":"Slope Engineering","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121440433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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