To ensure the safety of buildings surrounding foundation pits, a study was made on a settlement monitoring and trend prediction method. A statistical testing method for analyzing the stability of a settlement monitori...To ensure the safety of buildings surrounding foundation pits, a study was made on a settlement monitoring and trend prediction method. A statistical testing method for analyzing the stability of a settlement monitoring datum has been discussed. According to a comprehensive survey, data of 16 stages at operating control point, were verified by a standard t test to determine the stability of the operating control point. A stationary auto-regression model, AR(p), used for the observation point settlement prediction has been investigated. Given the 16 stages of the settlement data at an observation point, the applicability of this model was analyzed. Settlement of last four stages was predicted using the stationary auto-regression model AR (1); the maximum difference between predicted and measured values was 0.6 mm, indicating good prediction results of the model. Hence, this model can be applied to settlement predictions for buildings surrounding foundation pits.展开更多
This article first introduces the basic knowledge of the deformation measurement, discusses the causes and types of building deformation, tasks of deformation observation as well as its contents, methods, principles, ...This article first introduces the basic knowledge of the deformation measurement, discusses the causes and types of building deformation, tasks of deformation observation as well as its contents, methods, principles, process, and describes the main functions and contents of the deformation monitoring. In particular, this thesis describes the building settlement observation specifically and in great detail. It has carried out the analysis and research on the deformation measurement level of the building subsidence, as well as put forward requirements on the benchmark, layout and observation. Then referring to Shen Tie victory home 9 # building settlement measurement data and process, this paper explains the settlement observation level of Shen Tie victory home 9 # building level of choice and observation methods for embedding field bench mark and observation point thus to determine the subsidence and sedimentation rate.展开更多
基金Project 50279005 supported by the National Natural Science Foundation of China
文摘To ensure the safety of buildings surrounding foundation pits, a study was made on a settlement monitoring and trend prediction method. A statistical testing method for analyzing the stability of a settlement monitoring datum has been discussed. According to a comprehensive survey, data of 16 stages at operating control point, were verified by a standard t test to determine the stability of the operating control point. A stationary auto-regression model, AR(p), used for the observation point settlement prediction has been investigated. Given the 16 stages of the settlement data at an observation point, the applicability of this model was analyzed. Settlement of last four stages was predicted using the stationary auto-regression model AR (1); the maximum difference between predicted and measured values was 0.6 mm, indicating good prediction results of the model. Hence, this model can be applied to settlement predictions for buildings surrounding foundation pits.
文摘This article first introduces the basic knowledge of the deformation measurement, discusses the causes and types of building deformation, tasks of deformation observation as well as its contents, methods, principles, process, and describes the main functions and contents of the deformation monitoring. In particular, this thesis describes the building settlement observation specifically and in great detail. It has carried out the analysis and research on the deformation measurement level of the building subsidence, as well as put forward requirements on the benchmark, layout and observation. Then referring to Shen Tie victory home 9 # building settlement measurement data and process, this paper explains the settlement observation level of Shen Tie victory home 9 # building level of choice and observation methods for embedding field bench mark and observation point thus to determine the subsidence and sedimentation rate.
