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Ultimate Load Tests on Bearing Behavior of Large-Diameter Bored Piles in Weathered Rock Foundation
المؤلفون المشاركون
Wang, Yonghong
Bai, Xiaoyu
Zhang, Mingyi
Yan, Nan
Liu, Xueying
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-13، 13ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-09-08
دولة النشر
مصر
عدد الصفحات
13
التخصصات الرئيسية
الملخص EN
Based on the vertical compressive static load test and pile mechanics test of three large diameter bored piles (one of the test piles was treated with postgrouting) in granite gneisses foundation, the bearing capacity, deformation characteristics, and influencing factors of the single pile under the limit state are analyzed and compared with the recommended values of survey report and the recommended values of current codes.
By comparing the measured and theoretical values of pile axial force, the bearing capacity of cast-in-place pile under normal and limit conditions is analyzed.
The experimental results show that the Q-s curve of large-diameter rock-socketed mud wall retaining bored pile with a length-diameter ratio of 25–33 and rock-socketed depth of 5–8 d shows a rapid growth.
After grouting treatment, the ultimate compressive bearing capacity of single pile is improved, the maximum settlement is reduced by 6.6%, the rebound rate is reduced by 11.1%, and the settlement effect of controlling pile top is not significant.
The bearing capacity and deformation characteristics of the three test piles are less affected by length-diameter ratio and rock-socketed depth.
For postgrouting piles, the ratio of frictional resistance of rock-socketed segment and the ratio of pile lateral resistance are less affected by length-diameter ratio and rock-socketed depth, while, for postgrouting piles, the ratio of pile lateral resistance is more affected by rock-socketed depth.
The pile end resistance ratio of the three test piles is significantly affected by the rock-socketed depth, whether or not the pile side postgrouting treatment is carried out.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Bai, Xiaoyu& Liu, Xueying& Zhang, Mingyi& Wang, Yonghong& Yan, Nan. 2020. Ultimate Load Tests on Bearing Behavior of Large-Diameter Bored Piles in Weathered Rock Foundation. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1123283
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Bai, Xiaoyu…[et al.]. Ultimate Load Tests on Bearing Behavior of Large-Diameter Bored Piles in Weathered Rock Foundation. Advances in Civil Engineering No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1123283
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Bai, Xiaoyu& Liu, Xueying& Zhang, Mingyi& Wang, Yonghong& Yan, Nan. Ultimate Load Tests on Bearing Behavior of Large-Diameter Bored Piles in Weathered Rock Foundation. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1123283
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1123283
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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