کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6784377 | 1432324 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanism of tunneling-induced cave-in of a busy road in Fukuoka city, Japan
ترجمه فارسی عنوان
مکانیسم غار تونل زنی ناشی از یک جاده مشغول در شهر فوکوکا ژاپن
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کلمات کلیدی
تونلینگ، غار جاده ای، تجزیه و تحلیل قوس، شکست کششی،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
A road cave-in accident caused by tunneling is described, and the possible mechanism of failure is analyzed. The cave-in measured about 30â¯mâ¯Ãâ¯27â¯m in plane, and about 15â¯m in depth. At about 19â¯m below the ground surface at the site, a tunnel construction was underway. Immediately above the tunnel, there was a weathered shale layer approximately t 2.66â¯m thick; above this layer, there were sand and gravel layers. The groundwater level was estimated to be about 5â¯m below the ground surface. By arch analysis, it is shown that the most likely cause of the accident was the low strength of the weathered shale layer and the high water pressure above the tunnel, which resulted in tensile failure of the weathered shale layer. The All Ground Fasten (AGF) pre-support measure was adopted, but it might make very limited contribution to the increase in the tensile strength of the shale layer in the cross-sectional direction of the tunnel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Underground Space - Volume 3, Issue 2, June 2018, Pages 140-149
Journal: Underground Space - Volume 3, Issue 2, June 2018, Pages 140-149
نویسندگان
Jinchun Chai, Jack Shuilong Shen, Da-Jun Yuan,