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关于有黏结强度增强体复合地基承载力深度修正的讨论
doi: 10.13204/j.gyjz2001411024
DISCUSSION ON DEPTH MODIFICATION OF COHESIVE PILE COMPOSITE FOUNDATION BEARING CAPACITY
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摘要: 复合地基承载力深度修正问题,事关工程的安全和投资。但目前对这一问题的研究不足,认识并不统一。基于JGJ 79—2012《建筑地基处理技术规范》的规定和《建筑地基处理技术规范理解与应用》(按JGJ 79—2012)的观点,辨析有黏结强度增强体复合地基承载力深度修正的实质,导出考虑深度修正的桩身和桩间土承载力的两种计算方法。结合算例对该两种方法的适用性予以验证,最后提出有黏结强度增强体复合地基承载力深度修正的原则和方法。Abstract: VDepth modification of the bearing capacity of a composite foundation involves project safety and investment． Due to lacking research and unified understanding in that issue，and based on the regulations of Technical Code for Ground Treatment of Buildings ( JGJ 79—2012) and related points of view in The Understanding and Use of the Technical Code ( JGJ 79—2012) ，the substance of depth modification of cohesive-pile composite foundation was analyzed and，two methods to predict the modified bearing capacity of pile and soil between piles were deduced． The suitability of the two methods was testified by an example，the principle and method to revise the bearing capacity were also presented．
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Key words:
- cohesive-pile /
- composite foundation /
- bearing capacity /
- depth modification
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