Hence, preliminary to the mitigation measures discussed in this use case a study as described in use case 3. If the inline pdf is not rendering correctly, you can download the pdf file here. The present technology of satellite based remote sensing can be used for qualitative prediction of landslide. November 2002, agreed to take an initiative on flood prediction, prevention and mitigation. Biotechnical approaches to landslide mitigation have much less impact on the. Bioengineering techniques when used in combination with civil and social engineering measures reduce the overall cost of landslide mitigation considerably which is the key factor for developing nations. Various basic structural mitigation measures based on the type of landslide hazard and its effects are described in table 3. Finally, possible mitigation measures are investigated in section. Few methods of landslide prevention in the study region have been suggested. It provides an assessment of the status, needs, and associated costs of this national landslide hazards mitigation strategy and is submitted in compliance with a directive of public law 1061 see preface. Landslide hazards, risks, and disasters makes a close and detailed examination of major mass movements and provides measures for more thorough and accurate monitoring, prediction, preparedness, and prevention. The ratio of publications on landslide risk reduction versus publications on landslides for landslideprone tropical countries does not vary much between these countries average. The landslide mitigation action plan was compiled by the.
Impact of landslides and innovative landslidemitigation measures on the natural environment robert l. Landslides are major natural disaster which frequently occur in central himalayan region chr and affect life of human as well as animals, damage agriculture and impedes progress. Definition a landslide, also known as a landslip, is a geological phenomenon that includes a wide range of ground movements, such as rock falls, deep failure of slopes and shallow debris flows. Regional scale studies can be better done using satellite data and soi maps. The district authority in nawalparasi opened the gates of the gandak canal after the landslide at ramche.
Toward negotiated mitigation of landslide risks in. In addition to shallow erosion or reduction of shear strength caused by seasonal rainfall, landslides may be triggered by anthropic activities, such as adding excessive weight above the slope, digging at mid. However, in my opinion, the importance of landslide mitigation calls for a separate post. The landslide handbook a guide to understanding landslides. Landslides can be triggered by many, sometimes concomitant causes. The following is the established format for referencing this article. Adequate drainage of water is the most significant element of landslide mitigation measure for. Landslides are an unfortunate reality for hennepin county, the metropolitan areaand other regions in the state of minnesota. Pdf landslide hazard assessment and mitigation measures. Watawala landslide in 1992, hela uda landslide in 1993, naketiya landslide in 1997, mulhalkele in 1986 and elapatha, abepura landslide in 2003 can be named as most devastating landslides that occurred in the recent history claiming many lives, damaging the property and having a. Impact of large landslides, mitigation measures jean f. The landslides may be part and parcel of the himalayan landscape, but they can be mitigated by some suitable measures.
Overview of landslide hazard and possible mitigation measures in. Overview of landslide hazard and possible mitigation. Index terms bioengineering, hazard, landslide, mitigation, nilgiris. But by adopting certain precautionary measures impact can be minimized. Engineering measures for landslide disaster mitigation. Landslide mitigation refers to several manmade activities on slopes with the goal of lessening the effect of landslides. Executive summary partnerships for reducing landslide. Improper drainage is the most important single contributor to landslide initiation. Toward negotiated mitigation of landslide risks in informal settlements.
The following list is a simplified differentiation based on the type of movement. Landslides mitigation geotechnical engineering 101 and. Landslide hazards, risks, and disasters sciencedirect. Impact of landslides and innovative landslidemitigation measures. A core group led by the netherlands and france has prepared a best practice document on flood prevention, protection and mitigation to be presented to the water directors meeting in athens in june 2003. Mitigation measures require financial investment by the utility. Pdf in this paper, different types of landslides controlling methods and.
The mission was to investigate contributing factors to landslides within the corridor and determine a path to solutions. Any landslide mitigation measure used must have one or both of the above parameters. These can be used as the initial checklist or as the basis for eliminating measures that may not be relevant. The district authority in nawalparasi opened the gates of the gandak canal after the landslide at ramche in myagdi district blocked the kali gandaki river in nepal.
This updated guidance is an essential instrument for our internal and external stakeholders. Mueserrutledge examined various mitigation options. This report outlines the essential elements of a national landslide hazards mitigation strategy that when implemented would reduce the cost of landslide hazards. Mitigation focuses on minimizing the longerterm occurrence of landslides in a whole watershed. The severity of damage depends on the affected populations resilience. Significance of drainage measures on landslide mitigation. Washington state hazard mitigation plan november 2012 tab 5.
This case study discusses risk assessment and the subsequent. This guide provides practical solutions to help water and wastewater utilities mitigate the effects of natural disasters. If you need to print pages from this book, we recommend downloading it as a pdf. The anchors can beassessing risk and then developing strategies to. Unlimited viewing of the articlechapter pdf and any associated supplements and figures. Guideline on landslide treatment and mitigation image. Mitigation of a landslide means reducing the effects or the intensity of the landslide. Most methods of mitigation overlap with preventive measures so the subject matter in this post will overlap with the post on landslidesprevention. Its contents may not otherwise be disclosed without aiib authorization. It carefully outlines strategies for the mitigation process by interpreting the. A broad spectrum of expert opinion was sought in developing this strategy report as requested by the congress in house report 106222. Landslide hazard mitigation requires interactive collaboration across societal boundaries of academia, government, and the private sector. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext.
The guidelines in sp 117 provide, among other things, definitions, caveats, and general considerations for earthquake hazard mitigation, including a summary overview of analysis and mitigation of earthquake induced landslide hazards. Directly or indirectly natural disasters affect our environment and. Unfortunately, this book cant be printed from the openbook. Pdf landslide mitigation and its risk controlling researchgate. Reduction of landslide vulnerability by mitigation measures rlvmm project this document has a restricted distribution and may be used by recipients only in performance of their official duties. Landslide hazards and mitigation measures at gangtok. Ngaib ainstitute of geographical sciences and natural resources, chinese academy of sciences, beijing 100101, china bdepartment of civil and structural engineering, the university of hong kong, pokfulam road, hong kong, china received 21 december 2000. In addition, debris flow mitigation measures are discussed in some detail. Bioengineering techniques of slope stabilization and. Heavy rains in the spring of 2014 were responsible for several. It takes a geoscientific approach to the topic while also discussing the impacts humaninduced causes such as deforestation, blasting. Following an event, the material can either be removed through access from behind the system or by opening the nets in. Aggressive implementation of a comprehensive and effective national landslide hazards mitigation strategy would require increased investment in landslide hazard research, mapping and monitoring, and mitigation. Any remedial measure used must involve one or both of the above.
Landslide hazards and mitigation measures at gangtok, sikkim himalaya. Assessment, prevention and mitigation of landslide hazard. Back analysis of failed slopes is an effective tool for reliable design of the remedial. National landslide hazards mitigation strategy mitigation strategy. The himalayan kingdom is also facing threats of flooding following massive landslides. Because of upcoming highresolution sensors, a better quality lhz can be prepared. Impact of landslides and innovative landslidemitigation.
Shallow landslide barriers can be installed on steep slopes where stabilization methods would require more invasive techniques and often be too costly or unpractical. Guideline on landslide treatment and mitigation v preface the working group on landslide treatment and mitigation was established following the recommendations of the consultative workshop on landslide inventory, risk assessment, and mitigation organized by the department of soil. A compendium of structural and nonstructural mitigation measures for different landslide types has been developed as part of the ec sponsored safeland project, to be used both as a basis for a. Landslide hazard mitigation in the nilgiris district. Popescu illinois institute of technology, usa, katsuo sasahara kochi university, japan abstract correction of an existing landslide or the prevention of a pending landslide is a function of a reduction in the driving. Types, causes and mitigation of landslides question. Engineering measures for landslide disaster mitigation mihail e. Program for hydrometeorological disaster mitigation in secondary cities in asia. Introduction landslide hazard is one of the most significant hazards that affect different parts of india every year during the rainy season. Correction of an existing landslide or the prevention of a pending landslide is a function of a reduction in the driving forces or an increase in the available resisting forces. The work group developed the landslide mitigation action plan to evaluate causes of landslides within this 26. Finally, possible mitigation measures are investigated in section 7 and further investigations needed to shed light on the hazard situation and on the different mitigation options are suggested in section 8.