The Status, Mechanism And Forecasting Of Paroxysmal Geological Hazards In Flood Season At Qingdao Area

With the intensification of economic development, human activity, the floodperiod caused by mountain collapse, landslides, mudslides, and other suddengeological disasters have a direct threat to the security of people’s lives and property,and to hinder the economic and social sustainable development important factor.There are both natural and human factors about the incentive of geologicalhazards in Qingdao area, the role of the heavy rainfall-induced geological hazards inflood season is especially significant.With the rapid economic development in Qingdao area, human engineeringactivities become important factors of geological disasters, such as highwayconstruction, excavation embankment, slope cutting housing, mining of variousminerals and construction aggregate, the development of dangerous new attractions,all of these have increased the probability of occurrence of the disaster.The geological hazard prediction and forewarning system about Qingdao area iscomposed by system software, hardware, database system, monitoring system andnetwork communication system. The system programming language is C++,development tool is Borland C++Builder and ADO database interface technology isused. It is to realize database management including information browsing, customquery, conditions query, SQL query, statistics, editing and output, and networkcommunications based on the Internet including real-time monitoring datatransmission and browsing, finally get the village of level2and above, generating disaster forecast chart and warning letter. The system database has informationdatabase and spatial database of2classes11types, containing a large number ofinquiries for information, such as fundamental geographic information, geologicaldisaster and hidden points distribution, rural information, widely preventive measuresinformation and the weather forecast results; the terrain slope, structure, looseoverburden, nature disaster and other types of geological environment factors data;dynamic elements of precipitation data of rainfall station, soil moisture data, thevariation level of groundwater and deformation monitoring, etc.We make the prediction and forewarning system run by the comprehensivegeological, hidden points, disaster points, monitored values, rainfall and othermeteorological information, and other disasters influencing factors, by using computerto statistic, analyze, and submit the results to tripartite consultation of meteorological,geological and land; Finally, after the prediction value correction, we publishedgeological disaster the prediction and forewarning information. In the running threeyears, according to geological disasters and the actual rainfall, we constantly changeand improve the parameters and factors, publish information on disaster predictionseveral times every year, completed prevention many scales of geological disasters inadvance, to effectively avoid people and property losses.