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Register a new userFinite Element Modelingof the Ground Surface Deformations induced by shallow Tunnels in Soft Ground
نمذجة عددية بطريقة العناصر المنتهية لتشوهات سطح الأرض الناتجة عن تنفيذ الأنفاق السطحية في الترب الطرية
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Tishreen University ورقة بحثية
Publication date
2015
fields
Geotechnical Engineering
and research's language is
العربية
Created by
Shamra Editor
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تتناول هذه المقالة دراسة هبوط سطح الأرض الناتج عن تنفيذ الأنفاق السطحية باعتماد تحليل عددي ثنائي الأبعاد حسب طريقة FEM، بافتراض شرط الحقل الأخضر, و الذي يعني عدم وجود أية حمولات على سطح الأرض فوق النفق. و قد تم نمذجة المسألة باعتماد الحالة التشوهية المستوية باعتماد سلوك مرن –لدن لا خطي لنمذجة السلوك الاجهادي - التشوهي التربة وفق موديل (Hardening Soil Model: HS-Model). تتضمن هذه المقالة مقارنة بين نتائج التحليل العددي و قياسات الحقلية مرجعية لمشاريع منفذة كما تتضمن دراسة بارامترية لأغلب العوامل التي تؤثر على هبوط سطح الأرض.
In this paper, ground surface settlement induced by tunneling have been studied using 2D finite element analysis. By assuming greenfield conditions, which means that there is no loads on the soil surface above the tunnel. A FE study was conducted in which an elasto-plastic constitutive model was adopted to model the soil behavior (MC,HS). This paper include Comparison between actual field measurements with (FEM) results, and parametric study for the most factors that influence ground surface settlement.
References used
ERIC L. ; BARRY N." Settlements induced by tunneling in Soft Ground", Tunneling and Underground Space Technology 22, 2007, 119–149
FATTAH,Y,M, et al. "Prediction of settlement trough induced by tunneling in cohesive ground". Acta Geotechnica an international journal for geo engineering, 2012,15
FRANZIUS,N,J. "Behavior of buildings due to tunnel induced settlement".1PhD Dissertation,2 College of Science, Technology and Medicine, 2003,360
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In this paper, the modeling methods of tunneling and the surface subsidence induced by
that have been studied by using two-dimensional numerical analysis according to the FEM
method, assuming the green field condition، which means that there is no
load on the soil
surface above the tunnel. A FE study was conducted in which an elasto-plastic constitutive
model was adopted to model the soil behavior (HS, HSsmall).
This article includes a comparison between the results of numerical analysis and field
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