Improved settlement calculation method for engineering practice
YANG Guanghua1，2，3，LI Jun2，JIA Kai1，3，LI Zeyuan2
(1. Guangdong Research Institute of Water Resources and Hydropower，Guangzhou，Guangdong 510610，China；2. School of Civil Engineering and Transportation，South China University of Technology，Guangzhou，Guangdong 510641，China；3. Geotechnical Engineering Technology Center of Guangdong Province，Guangzhou，Guangdong 510640，China)
At present，the calculation method of foundation settlement in engineering mainly depends on the method in the standard. The compression modulus is used to calculate the compression settlement by the stratified sum method，and then multiplied by the empirical coefficient. The empirical coefficient is 0.2–1.4，The coefficient rangeistoolarge. In order to solvethe problem，new method is proposed. The deformation modulus is proposed for the hard soil foundation instead of the compression modulus，so the empirical coefficient can be canceled. And the empirical method to determine the deformation modulus is proposed. For the saturated soft soil，it is recommended to calculate the correction coefficient based on the load level or the stability safety factor rather than by human experiments. So as to provide a simple and practical engineering settlement calculation method for engineering. Case study shows that it can effectively improve the accuracy of calculation settlement.
中华人民共和国国家标准编写组. GB 50007—2011 建筑地基基础设计规范[S]. 北京：中国建筑工业出版社，2011.(The National Standards Compilation Group of People¢sRepublic of China. GB 50007—2011 Code for design of building foundation[S]. Beijing：China Architecture and Building Press，2011.(in Chinese))
[2]
中华人民共和国国家标准编写组. GB 50286—98 堤防工程设计规范[S]. 北京：中国建筑工业出版社，1998.(The National Standards Compilation Group of People¢s Republic of China. GB 50286—98 Code for design of levee project[S]. Beijing：China Architecture and Building Press，1998.(in Chinese))
[3]
中华人民共和国行业标准编写组. JTJ 017—96公路软土地基路堤设计与施工技术规范[S]. 北京：人民交通出版社，1997.(The Professional Standards Compilation Group of People¢sRepublic of China. JTJ 017—96 Technical specifications for design and construction of highway embankment on soft ground[S]. Beijing：China Communication Press，1997.(in Chinese))
[4]
高大钊.土力学与基础工程[M]. 北京：中国建筑工业出版社，1999：78-79.(GAO Dazhao. Soil mechanics and foundation engineering[M]. Beijing：China Architecture and Building Press，1999：78-79.(in Chinese))
[5]
中华人民共和国行业标准编写组. JGJ 118—2011冻土地区建筑地基基础设计规范[S]. 北京：中国建筑工业出版社，2011.(The Professional Standards Compilation Group of People¢s Republic of China. JGJ 118—2011 Code for design of soil and foundation of building in frozen soil region[S]. Beijing：China Architecture and Building Press，2011.(in Chinese))
[6]
中华人民共和国行业标准编写组. SJG 01—2010深圳市地基基础勘察设计规范[S]. 北京：中国建筑工业出版社，2010.(The Professional Standards Compilation Group of People¢s Republic of China. SJG 01—2010 Code for investigation and design of foundation[S]. Beijing：China Architecture and Building Press，2010.(in Chinese))
[7]
中华人民共和国行业标准编写组. JGJ 6—99高层建筑箱形与筏形基础技术规范[S]. 北京：中国建筑工业出版社，1999.(The Professional Standards Compilation Group of People¢s Republic of China. JGJ 6—99 Technical code for tall building raft foundation and box foundation[S]. Beijing：China Architecture and Building Press，1999.(in Chinese))
[8]
杨光华. 根据经验地基承载力反算土的强度和变形参数[J]. 广东水利水电，2002，(1)：3-6.(YANG Guanghua. According to the experience of foundation bearing capacity to inverse the strength and deformation parameters of soil[J].Guangdong Water Resources and Hydropower，2002，(1)：3-6.(in Chinese))
[9]
杨光华. 深基坑支护结构的实用计算方法及其应用[M]. 北京：地质出版社，2004：52.(YANG Guanghua. Practical calculation method of retaining structures for deep excavations and its application[M]. Beijing：Geological Publishing House，2004：52.(in Chinese))
[10]
杨光华. 地基非线性沉降计算的原位土切线模量法[J]. 岩土工程学报，2006，28(11)：1928-1931.(YANG Guanghua. Nonlinear settlement computation of the soil foundation with the undisturbed soil tangent modulus method[J]. Chinese Journal of Geotechnical Engineering，2006，28(11)：1928-1931.(in Chinese))
[11]
陆培炎，倪光乐，赖琼华，等.陆培炎科技著作及论文选集[M]. 北京：科学出版社，2006：446-457.(LU Peiyan，LI Guangle，LAI Qionghua，et al. LU Peiyan¢s selected books and papers[M]. Beijing：Science Press，2006：446-457.(in Chinese))
[12]
杨光华. 地基沉降计算的新方法及其应用[M]. 北京：科学出版社，2013：234-235.(YANG Guanghua. The new method to calculate the settlement of the foundation and its applications[M]. Beijing：The Science Publishing Company，2013：234-235.(in Chinese))
[13]
杨光华，姚丽娜. 基于e-p曲线的软土地基非线性沉降的实用计算方法[J]. 岩土工程学报，2015，37(2)：243-247.(YANG Guanghua，YAO Lina. Practical method for calculating nonlinear settlement of soft ground based on e-pcurve[J]. Chinese Journal of Geotechnical Engineering，2015，37(2)：243-247.(in Chinese))
2017, Vol. 36 
