Analysis Of The Morphological Characteristics And Dam Failure Movement Of Artificial And Natural Check Dams

Dam stability evaluation and dam failure disaster prediction and analysis are receiving increasing public attention.This is because floods and mudflows caused by dam breaks can cause devastating disasters,endangering people’s safety as well as causing huge economic losses.In the Loess Plateau region of China,many urban development is limited by the shortage of land,in order to improve this undesirable state,mountaintop removal filling valley is urgent.Mountaintop removal filling valley can create a large amount of urban construction land,but in the rise of such projects at the same time the construction of landfill dams is essential,the construction of various landfill dams also caused some of the urban hydrogeological hazards of the safety risks.Therefore,in this paper,the rapid stability model of landslide dam is used to analyze the applicability of the stability of man-made dams,and the motion characteristics and disaster impacts of tailings dams and landfill dam failures are evaluated by combining the models of motion characteristics of different fluid substances.This is of great significance to ensure the urban development and safety after the construction of landfill dams in high fill areas.This study is based on the data of global landslide dams,tailings dams and landfill dams in mountaintop removal filling valley through various means and methods such as data collection,remote sensing image technology and regretional analysis.The first is the collection of the country,location,geometric characteristics,material composition,whether the dam is breached and the characteristics of the breach,and the causes of the landslide dam.The second is the collection of detailed information on tailings dams,including geometric characteristics,type of ore production,material composition,and movement characteristics after dam failure.The third is the collection of geometric features of the Hirayama landfill dam and the compilation of data on potential dam failure movement characteristics.This paper describes the morphological characteristic patterns of different dams and the comparative analysis of the rapid stability models.For the rapid stability evaluation models,firstly,Is and BI models,which cannot determine the state stability or not of most landslide dam cases,can only evaluate the stability of landslide dams in the current data pool.DBI and Ie models have higher accuracy in evaluating the state of collected landslide dams,among which Ie model is relatively more accurate,but Ie model mainly analyzes the landslide dams formed by earthquakes.For tailings dams and landfill dams,the Is and Ia models were applied to evaluate their stability,respectively,and the model intervals were adjusted,where the adjustment of the Ia model had the same applicability for the three dam state judgments.The potential dam failure impact of landfill dam is discussed using the dam failure motion of the tailings dam with other fluid substances analysis technique,combining the analysis of the dam geometry with the potential dam failure motion to further evaluate the impact of dam failure based on the present results.Although other factors such as topography and geomorphology are not considered,it can be seen that the movement distance of different fluid substances shows a positive correlation with the volume of dam failure.For various disasters of different material sources without considering all other aspects,only the impact area and volume of the disaster are considered,and the comparison of the volume-area results are found to be closely related to the two-thirds slope regression line.The comparative analysis of the rapid stability model of dams provides a new idea for studying the stability of man-made and natural dams;the discovery of the characteristic laws of movement of different fluid substances is a guide for the study of disaster impacts,and the analysis of the application of the rapid stability model of man-made dams will be of great significance in securing the safety of urban construction,and the high-quality development of urban construction.