| Since the successful declaration of the world natural heritage in 2010,the number of tourists has increased year by year.However,there are some landscape dangerous rocks threatening infrastructure,people's lives and property,and the development of tourism economy in the scenic spot.At present,they are not paid much attention to.Nevertheless,effective monitoring and prevention are urgently needed to ensure the safety of people's lives and property.Therefore,it is of great significance for the sustainable development of scenic spots to study the monitoring methods and control schemes of dangerous rock.Up to now,the research on monitoring and prevention of dangerous rocks at home and abroad has been comprehensive and systematic,but there are also shortcomings,mainly reflected in the limited monitoring and prevention technology of dangerous rocks,the contradiction between the prevention and control of landscape dangerous rocks and landscape protection,etc.On the basis of summarizing the research results of the geomorphology,dangerous rock monitoring and dangerous rock control at home and abroad,taking the landscape dangerous rock in the scenic area as the object,combining with the concept of the protection of the landscape dangerous rock and the sustainable development value of the scenic spot,the monitoring and Prevention Technology Research of the landscape dangerous rock has been carried out.It mainly includes the following aspects:(1)On the basis of investigation and analysis of the geographical location,transportation,social economy and other basic conditions,the sustainability of tourism development in the scenic area is assessed,including the current situation of tourism development,the characteristics and value of scenic resources,the orientation of tourism theme development and the status of future tourism.Rock monitoring method and prevention scheme design are of great significance.(2)Indoor collection and collation of a large number of data,as well as field investigations.By summarizing the results of previous studies,combining with the actual situation of Mount Danxia scenic area,the causes of Mount Danxia landscape dangerous rock are analyzed,mainly including three factors: regional geology,dynamic conditions and external carving.Regional geology includes topography,stratigraphic lithology,climate characteristics,hydrogeology,geotechnical engineering geology;dynamic conditions include geological tectonics,neotectonicactivities and earthquakes;external carving includes flowing water,collapse and weathering.(3)First of all,analyze different monitoring methods and technologies,compare the advantages and disadvantages of manual and automatic monitoring methods,as well as different applicability.Secondly,this paper studies the monitoring examples of "Crocodile Climbing" and "Brocade Rock" which threaten the safety of people's life and property in Danxia Mountain Scenic Area,including the selection of monitoring means.The traditional geodetic method and robot geodetic method are studied from the layout of control point and monitoring point,the implementation of monitoring scheme,the arrangement of work flow,monitoring data and deformation analysis Row comparison.Finally,the monitoring results can be used as the basis to judge the stability and danger of landscape dangerous rock,and whether engineering treatment measures are needed.(4)In order to avoid danger caused by landscape dangerous rock,a control plan for dangerous rock is designed.In terms of preventive measures,some suggestions are put forward,including common manual monitoring and inspection measures,the design and development of forecasting and early warning system,the construction of emergency disposal and rescue system;and in terms of control measures,specific treatment suggestions are given to different landscape dangerous rocks that have been implemented deformation monitoring,which can provide reference for the treatment of landscape dangerous rocks in other scenic spots.This paper has 32 figures,28 tables and 57 references. |
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