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Horizontal Bearing Test and Optimization of m Value for Precast Piles in Alluvium Stratum of the Yellow River
المؤلفون المشاركون
Lyu, Xianzhou
Wang, Weiming
Chen, Zhen
Zhao, Zeng-hui
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-13، 13ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-06-21
دولة النشر
مصر
عدد الصفحات
13
التخصصات الرئيسية
الملخص EN
For a pile foundation design, the value of proportional coefficient m to define the soil horizontal resist force is a significant parameter.
However, different geological conditions and experimental environment have led to different m values.
In this paper, an in situ test is firstly carried out on the horizontal bearing capacity of large-size precast square-piles.
The piles deformation is then derived by using the optimization method from the measured data.
Secondly a back analysis model is established to calculate the m value by using the simplex method, which reveals the evolution rule of the value of proportional coefficient m.
Results show that the horizontal bearing characteristics of precast piles depend on the interaction force of piles and soils.
The action mechanism of the soils around the piles is gradually developed with the increase in the concrete content.
The horizontal critical load and the Eigenvalue of horizontal bearing capacity increased by 16.7% and 20%, respectively.
It is also seen that the higher the content of the cement-soil around the piles and the longer the pile length, the bigger the m value obtained.
The variation of the proportional coefficient m with the horizontal displacement of pile top is defined by three stages: rapid decaying stage, slow decaying stage, and balanced stage, respectively.
The inverse analysis method on the proposed m value can accurately reflect the actual working state of piles and soils.
In the depth of 3~18m in the west of Ji'nan, the range of m value is recommended as 4~6.58 MN·m-4.
When Δ takes 12mm, the values of m are consistent with the result from the back analysis.
In summary, the obtained m value can be effectively used to guide the design of enclosure structure in the super deep foundation pit in the Yellow River alluvial stratum.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Lyu, Xianzhou& Chen, Zhen& Zhao, Zeng-hui& Wang, Weiming. 2018. Horizontal Bearing Test and Optimization of m Value for Precast Piles in Alluvium Stratum of the Yellow River. Mathematical Problems in Engineering،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1207217
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Lyu, Xianzhou…[et al.]. Horizontal Bearing Test and Optimization of m Value for Precast Piles in Alluvium Stratum of the Yellow River. Mathematical Problems in Engineering No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1207217
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Lyu, Xianzhou& Chen, Zhen& Zhao, Zeng-hui& Wang, Weiming. Horizontal Bearing Test and Optimization of m Value for Precast Piles in Alluvium Stratum of the Yellow River. Mathematical Problems in Engineering. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1207217
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1207217
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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