کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
809337 1468686 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Updating performance of high rock slopes by combining incremental time-series monitoring data and three-dimensional numerical analysis
ترجمه فارسی عنوان
به روز رسانی عملکرد شیب های سنگی با ترکیب داده های مانیتورینگ سری زمانی و تحلیل عددی سه بعدی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی


• Incremental time-series monitoring data is used to update theoretical predictions.
• Both the model uncertainty and the model parameter uncertainty can be updated.
• Excavation of the 530 m high Jinping high rock slope is analyzed as an example.
• The prediction becomes closer to the actual performance after multi-step updating.
• The slope parameters become closer to the reality after updating.

Predicted performance of a complex geotechnical system is subject to errors due to the uncertainties associated with both the prediction model and the system parameters. This paper aims to develop a multi-step updating method to reduce the uncertainties of the prediction model and system parameters using incremental time-series monitoring data, and to enhance the prediction of the future performance of the complex geotechnical system. The multi-step updating method considers inherent uncertainty of the system, model uncertainty and measurement uncertainty. The prediction is updated and improved step by step with new monitoring information using Bayes’ theorem. Two realistic geotechnical cases including a basement excavation and a multi-stage excavation of a high rock slope are presented for illustration. The multi-step updating method integrates the theoretical computational model with observational evidence. With more monitoring information being incorporated, the prediction becomes closer to the actual performance of the system, and the distributions of the system parameters become closer to the reality.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Rock Mechanics and Mining Sciences - Volume 83, March 2016, Pages 252–261
نویسندگان
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