《软土路基沉降计算方法研究》-毕业论文设计（学术).doc

PAGE 5 软土路基沉降计算方法研究 摘 要 地基沉降计算是土力学中的重要研究课题。至今，地基沉降的理论研究已经有了长足的发展，软土路基的沉降量计算精度也大幅度提高。但从工程建设发展的要求来看，实测沉降量和计算值之间还有较大的差距。如何准确的估计地基沉降量仍是当今岩土工程计算中的一大难题。 本文首先对国内外常规的地基沉降计算方法进行了介绍，简述了地基计算方法的研究现状。对软土路基沉降变形机理进行了分析，分析了e-p曲线法和e-lgp曲线法，并通过工程实例比较了两种方法。 关键词: 沉降计算 软土路基 沉降变形机理 Abstract Soil mechanics foundation settlement calculation is the important research subject. So far, the theoretical research foundation settlement has tremendous development, and the settlement of soft clay subgrade computational precision greatly improved. But from the requirements of the development of construction engineering standpoint, the measured values calculated the settlement is and great gap between also. How to estimate of subgrade settlement amount is still current geotechnical engineering calculation of a difficult problem. This paper firstly to domestic and international foundation settlement calculation methods of conventional were introduced, and expounds the research situation of foundation calculation method. The soft soil subgrade settlement and deformation mechanism are analyzed, and analyzed the e - p curve method and e - LGP curve method, and through engineering examples, two methods were compared. Key words：Settlement calculation oft soil subgrade settlement deformation mechanism 目录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc291855543 1绪论 PAGEREF _Toc291855543 \h 1 HYPERLINK \l _Toc291855544 1.1软土的基本工程特性 PAGEREF _Toc291855544 \h 1 HYPERLINK \l _Toc291855545 1.2软土路基沉降计算研究现状 PAGEREF _Toc291855545 \h 2 HYPERLINK \l _Toc291855546 1.3本文的研究内容 PAGEREF _Toc291855546 \h 4 HYPERLINK \l _Toc291855547 2 软土路基沉降变形机理 PAGEREF _Toc291855547 \h 5 HYPERLINK \l _Toc291855548 2．1瞬时沉降 PAGEREF _Toc291855548 \h 5 HYPERLINK \l _Toc291855549 2．2 固结沉降 PAGEREF _Toc291855549 \h 5 HYPERLINK \l _Toc291855550 2．3 次固结沉降 PAGEREF _Toc291855550 \h 5 HYPERLINK \l _Toc291855551 3 沉降计算方法分析 PAGEREF _Toc291855551 \h 6 HYPERLINK \l _Toc291855552 3．1固结沉降计算方法 PAGEREF _Toc291855552 \h 6 HYPERLINK \l _Toc