Control of surface subsidence based on the data of building deformation monitoring
Buildings can be damaged due to deformation processes in the rock massif located under urban areas.These processes can be provoked by mineral extraction and are aggravated in emergency.This results in subsidence of the ground surface and the appearance of sinkholes.To control the deformation processes of the rock massif,the method of complex monitoring is used.One of its important components is monitoring of ground subsidence.Modern satellite methods,such as SAR,GPS can control the ground surface with sufficient resolution in space or time,but not simultaneously.Moreover,these methods require that the space between the satellites and the ground surface should be free of any objects,which is a significant disadvantage of this approach.In this paper,the authors estimate the distortion of the ground surface based on the data from the online deformation monitoring systems mounted at the foundations of the buildings located in this area.Such systems monitor the settlements of the building foundations based on the data of hydrostatic level measurements.Each hydrostatic level system(HLS)can perform measurements with the desired sampling in space(depending on the number of sensors)and also in time.On the basis of these measurements one can estimate both the average rate of inhomogeneous settling of one building and its average tilt as a whole,and the spatial-temporal inhomogeneity of the processes of building deformation.For the sake of forecasting it is important to evaluate the deformation state of building and the deformation processes in the whole rock massif underlying the examined group of buildings.The work presents long-term results of observations of a group of buildings located on the ground surface.The evolution of tilt angles of the ground surface and the group of overlying buildings is shown.The possibility of the short-term forecast of the deformation processes in the ground surface is assessed.
ground subsidence tilt deformation monitoring sinkhole
V.Yepin A.Barayakh I.Shardakov A.Shestakov R.Tsvetkov
Institute of Continuous Media Mechanics of the Ural Branch of the RAS,Perm,Russia Perm Federal Research Center of the Ural Branch of the RAS,Perm,Russia
国际会议
The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)
青岛
英文
2149-2156
2018-07-22（万方平台首次上网日期，不代表论文的发表时间）