| 堆载预压处理软土地基中固结系数的反分析计算方法 |
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| 引用本文： | 孙昊月,王清,叶永红,林坚民.堆载预压处理软土地基中固结系数的反分析计算方法[J].煤炭技术,2010,29(2). |
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| 作者姓名： | 孙昊月 王清 叶永红 林坚民 |
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| 作者单位： | 1. 吉林大学建设工程学院,长春,130026
2. 广州地质勘察基础工程公司,广州,510075 |
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| 基金项目： | 国家自然科学基金项目(40372122) |
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| 摘 要： | 通常室内试验方法确定的软土固结系数精确度较低。针对该问题,在堆载预压实际工程试验段施工中,根据现场实测的沉降数据,选用双曲线法推算最终沉降量,并用该值计算出地基软土的实际平均固结度。用该固结度与试验得出的固结系数所计算的固结度相比较,最终确定试验固结系数的修正系数。得出了用实测数据反分析固结系数是可行的结论。为该区域软土地基处理和设计,提供参考。
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| 关 键 词： | 固结系数 反分析 软土 堆载预压 |
Back Analysis Methood of Consolidation Coeffcicient in Preloading Dealing with Soft Ground |
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| SUN Hao-yue,WANG Qing,YE Yong-hong,LIN Jian-min.Back Analysis Methood of Consolidation Coeffcicient in Preloading Dealing with Soft Ground[J].Coal Technology,2010,29(2). |
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| Authors: | SUN Hao-yue WANG Qing YE Yong-hong LIN Jian-min |
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| Affiliation: | 1.College of Construction Engineering/a>;Jilin University/a>;Changchun 130026/a>;China/a>;2.Guangzhou Geological Investigation and Foundation Engineering Corporation/a>;Guangzhou 510075/a>;China |
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| Abstract: | Consolidation coefficient of soft soil is usually not accurate by laboratory tests.To deal with this matter,hyperbola method is chosen to estimate the final settlement in practical preloading test stage construction,based on field measurement data figure out the actual average consolidation of soft foundation.Comparingthe consolidation value with that through test,confirm a correction factor on the test method of coefficient of the consolidation,to offer a reference for the treatment and design phase.A conc... |
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| Keywords: | coefficient of the consolidation back analysis soft clay surcharge preloading |
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