Abstract
The sea reclamation is one of the efficient ways to alleviate the shortage of land resources due to population growth, and the corresponding axial ultimate bearing capacity of piles has become one of the critical factors for evaluating the performance of the soil layer reclamation work. Many models are used to analyze the testing data. However, these models cannot describe the mean population bearing capacity and unit-to-unit variation simultaneously, and they cannot give the reliability of predicting the axial ultimate bearing capacity of piles. Thus, they are rarely used in practice. In this article, we propose a mixed-effects model, which could overcome the drawback of the models in the literature. A hierarchical Bayesian framework is developed to estimate the model parameters using Gibbs sampling. The proposed model is applied to a real pile dataset collected in silt-rock layer area, and we predict the mean axial bearing capacities under different reliability levels.
Highlights
With the rapid development of economy in coastal area and the increasing pressure of population growth, the contradiction between land resources and space resources is becoming more and more serious
In order to solve the problem of land deficit in the coastal area, Japan, Holland, Singapore, and China mainly use the way of sea reclamation, which can be found in Zhuang et al.,[1] Swinbanks,[2] Fang et al.,[3] and Lee.[4]
Due to the drilled shaft technology, it has been widely used in many kinds of soil layers to meet the requirements of different bearing capacity, such as complicated formation of coastal areas[5] and silt-rock fill layer.[6]
Summary
With the rapid development of economy in coastal area and the increasing pressure of population growth, the contradiction between land resources and space resources is becoming more and more serious. Luo et al.[27] viewed the settlement of the pile cap as the general time, and constructed G(1, 1) prediction model based on the first-order dynamic differential equations via the gray system theory proposed by Deng.[28] Similar works can be found in Peng et al.[29] When the method is used to solve the problem, the accuracy and reliability of the results mainly depend on the experts’ empirical knowledge. The middle layer of the site mainly consists of clay with medium compressibility, the lower part is heavily weathered, and medium weathering quartz syenite porphyry, which has good mechanical properties It is located between 60 and 80 m below the surface. The full section of pile which enters the bearing layer is not less than 2400 mm, the sediment thickness is less than 50 mm, and the bearing layer of the pile is the medium weathering quartz syenite porphyry
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
