摘要
考虑建筑物掏土纠倾地基土体侧压力和掏土的动态扰动影响,提出了基于鲁宾涅特解的掏土孔孔周土体塑性区计算方法,并推导了建筑物掏土纠倾孔间土体最大宽度确定方法。在某高层住宅楼掏土纠倾实例中,将其计算结果与圆孔扩张理论对比,并由现场监测结果进行了验证。结果表明：基于鲁宾涅特解的掏土孔孔间距与住宅楼施工间距基本一致,而基于小孔扩张理论的掏土孔孔间距理论解与现场施工相差较大,鲁宾涅特解对建筑物掏土纠倾孔周土体塑性区的求解具有更高的精度,由此证明,提出的孔周土体塑性区求解方法以及孔间土体最大宽度确定方法是可行的,与建筑物掏土纠倾工程实例吻合度较高。
Considering the influence of soil ＇s lateral pressure and soil-digging ＇s dynamic disturbance,a plastic zone＇s analytical solution method of digging hole based on Rubin＇s answer was established,and method to determine soil＇s maximum width between adjacent two digging holes was deduced. The new methods were applied in an inclinerectifying engineering of high residential building. The result was compared with that of the pore expansion theory,and verified by field monitoring data. The results show that,solution based on Rubin＇s answer can be in good agreement with the residential building＇s construction,while the solution based on pore expansion theory has big difference with the field construction. Solution on soil＇s plastic zone based on Rubin＇s answer has higher precision. Therefore,new methods for solving soil＇s plastic zone around digging holes and soil＇s maximum width between adjacent two digging holes are feasible,which agree with field construction well.
作者
陈云娟
张鑫
郭道通
邓祥文
CHEN Yunjuan;ZHANG Xin;GUO Daotong;DENG Xiangwen(School of Civil Engineering, Shandong Jianzhu University, Jinan 250101, China;Shandong Jiangu Special Engineering Appraisal Limited Company, Jinan 250013, China)
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
2018年第2期168-173,共6页
Journal of Building Structures
基金
国家自然科学基金项目(51609130,51678350)
山东省自然科学基金项目(ZR2016EEQ10)
中国博士后科学基金项目(2016M592213)
关键词
建筑物
掏土纠倾
动态扰动
鲁宾涅特解
塑性区
building
soil-digging incline-rectifying
dynamic disturbance
Rubin＇ s answer
plastic zone
