Toward negotiated mitigation of landslide risks in. Pdf landslide hazard assessment and mitigation measures. Washington state hazard mitigation plan november 2012 tab 5. 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. 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.
Toward negotiated mitigation of landslide risks in informal settlements. Hence, preliminary to the mitigation measures discussed in this use case a study as described in use case 3. National landslide hazards mitigation strategy mitigation strategy. Unfortunately, this book cant be printed from the openbook. The safeland compendium of landslide risk mitigation measures. Adequate drainage of water is the most significant element of landslide mitigation measure for. 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. Pdf landslide mitigation and its risk controlling researchgate. Impact of large landslides, mitigation measures jean f.
Impact of landslides and innovative landslidemitigation measures on the natural environment robert l. A broad spectrum of expert opinion was sought in developing this strategy report as requested by the congress in house report 106222. 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. Index terms bioengineering, hazard, landslide, mitigation, nilgiris. The work group developed the landslide mitigation action plan to evaluate causes of landslides within this 26.
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. Few methods of landslide prevention in the study region have been suggested. Pdf in this paper, different types of landslides controlling methods and. The following list is a simplified differentiation based on the type of movement. Landslide hazard mitigation requires interactive collaboration across societal boundaries of academia, government, and the private sector. Various basic structural mitigation measures based on the type of landslide hazard and its effects are described in table 3. Back analysis of failed slopes is an effective tool for reliable design of the remedial. The anchors can beassessing risk and then developing strategies to. Introduction landslide hazard is one of the most significant hazards that affect different parts of india every year during the rainy season. In addition, debris flow mitigation measures are discussed in some detail.
Landslide hazard mitigation in the nilgiris district. Its contents may not otherwise be disclosed without aiib authorization. Assessment, prevention and mitigation of landslide hazard. This updated guidance is an essential instrument for our internal and external stakeholders. However, in my opinion, the importance of landslide mitigation calls for a separate post. The himalayan kingdom is also facing threats of flooding following massive landslides. This report outlines the essential elements of a national landslide hazards mitigation strategy that when implemented would reduce the cost of landslide hazards. Directly or indirectly natural disasters affect our environment and. 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. Landslide hazards and mitigation measures at gangtok.
It takes a geoscientific approach to the topic while also discussing the impacts humaninduced causes such as deforestation, blasting. Bioengineering techniques of slope stabilization and. Executive summary partnerships for reducing landslide. The landslide handbook a guide to understanding landslides. 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. The severity of damage depends on the affected populations resilience. These can be used as the initial checklist or as the basis for eliminating measures that may not be relevant.
Impact of landslides and innovative landslidemitigation. Engineering measures for landslide disaster mitigation mihail e. Mitigation focuses on minimizing the longerterm occurrence of landslides in a whole watershed. November 2002, agreed to take an initiative on flood prediction, prevention and mitigation. If you need to print pages from this book, we recommend downloading it as a pdf. 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.
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. Mitigation of a landslide means reducing the effects or the intensity of the landslide. 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. The mission was to investigate contributing factors to landslides within the corridor and determine a path to solutions. 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. 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. This guide provides practical solutions to help water and wastewater utilities mitigate the effects of natural disasters. Regional scale studies can be better done using satellite data and soi maps.
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. Back analysis of failed slopes is an effective tool for reliable design of the remedial measures while advanced numerical methods are nowadays frequently used to design safe and cost effective landslide remedial measures. 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. Most methods of mitigation overlap with preventive measures so the subject matter in this post will overlap with the post on landslidesprevention. Landslide hazards and mitigation measures at gangtok, sikkim himalaya. Engineering measures for landslide disaster mitigation. 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 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. Heavy rains in the spring of 2014 were responsible for several. The landslides may be part and parcel of the himalayan landscape, but they can be mitigated by some suitable measures.
Following an event, the material can either be removed through access from behind the system or by opening the nets in. Overview of landslide hazard and possible mitigation measures in. Mueserrutledge examined various mitigation options. Landslides can be triggered by many, sometimes concomitant causes. Bioengineering has a very high success rate and is much more sustainable, eco. Any remedial measure used must involve one or both of the above. The landslide mitigation action plan was compiled by the.
Landslide hazards, risks, and disasters sciencedirect. Shallow landslide barriers can be installed on steep slopes where stabilization methods would require more invasive techniques and often be too costly or unpractical. Impact of landslides and innovative landslidemitigation measures. Finally, possible mitigation measures are investigated in section. Mitigation measures require financial investment by the utility. Unlimited viewing of the articlechapter pdf and any associated supplements and figures. Landslide mitigation refers to several manmade activities on slopes with the goal of lessening the effect of landslides. This case study discusses risk assessment and the subsequent. The district authority in nawalparasi opened the gates of the gandak canal after the landslide at ramche. The ratio of publications on landslide risk reduction versus publications on landslides for landslideprone tropical countries does not vary much between these countries average.
It carefully outlines strategies for the mitigation process by interpreting the. Types, causes and mitigation of landslides question. Any landslide mitigation measure used must have one or both of the above parameters. The following is the established format for referencing this article. Biotechnical approaches to landslide mitigation have much less impact on the.
But by adopting certain precautionary measures impact can be minimized. Landslides are an unfortunate reality for hennepin county, the metropolitan areaand other regions in the state of minnesota. Landslides mitigation geotechnical engineering 101 and. 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. Significance of drainage measures on landslide mitigation. 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. 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. Improper drainage is the most important single contributor to landslide initiation. 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.
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