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| 粗粒料级配缩尺后压实密度试验研究 | |
| 引用本文： | 朱俊高,翁厚洋,吴晓铭,刘汉龙.粗粒料级配缩尺后压实密度试验研究[J].岩土力学,2010,31(8):2394-2398. |
| 作者姓名： | 朱俊高 翁厚洋 吴晓铭 刘汉龙 |
| 作者单位： | 1. 河海大学,岩土力学与堤坝工程教育部重点实验室,南京,210098 2. 河海大学,岩土力学与堤坝工程教育部重点实验室,南京,210098;宏润建设集团股份有限公司,浙江,宁波,315700 3. 国电大渡河流域水电开发有限公司,成都,610016 |
| 基金项目： | 国家自然科学基金委员会、二滩水电开发有限责任公司雅砻江水电开发联合基金，国家杰出青年科学基金，水利部公益性行业科研专项 |
| 摘 要： | 对某级配粗粒料采用混合法、剔除法、等量替代法和相似级配法等4种不同缩尺方法进行缩尺。缩尺后替代级配料的最大粒径分别为10、20、40和60 mm。对各替代级配料进行了相对密度试验。同时,为完善试验成果,又人工随意配置了3种级配料用于试验。最大、最小干密度试验分别采用振动台法和松填法。研究同一原型级配料不同方法缩尺后各级配土石料在同一压实功能情况下的最大、最小干密度与土料级配参数、最大粒径之间的关系。提出了一种将干密度与级配之间关系归一化的方法,并拟合了干密度与Cu、Cc及最大粒径之间的关系,据此可推求原型级配料的最大干密度。 |
| 关 键 词： | 粗粒料 缩尺方法 最大干密度 级配 |
| 收稿时间： | 2008-12-18 |
Experimental study of compact density of scaled coarse-grained soil |
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| ZHU Jun-gao,WENG Hou-yang,WU Xiao-ming,LIU Han-long.Experimental study of compact density of scaled coarse-grained soil[J].Rock and Soil Mechanics,2010,31(8):2394-2398. | |
| Authors: | ZHU Jun-gao WENG Hou-yang WU Xiao-ming LIU Han-long |
| Institution: | 1. Key Laboratory of Education Ministry for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098 China; 2. Hongrun Construction Group Co., Ltd , Ningbo, Zhejiang 315700, China; 3. Daduhe Hydropower Development Co., Ltd, Chengdu 610016, China |
| Abstract: | Four different scaling methods are used to scale a coarse-grained soil into a grading with smaller particles. The methods are mixing method, scalping method, equal-weight replacement method and similar grading method. The biggest grain size of each soil after grading is 10mm, 20mm, 40mm and 60mm, respectively. A number of relative density tests are conducted. To further analyse the test results, more relative density for other three soils with arbitrary grading are performed. The maximum and minimum dry density tests are carried out using vibrating method and loose filling method. The relationship between maximum or minimum dry density and the soil grading parameters, maximum particle size is investigated under the same compactive effort. A normalizing method is presented to express the relationship between dry density and grading. The relationship of dry density versus Cu, Cc and maximum particle size is found. According to the relation, the maximum dry density of the real gradation can be determined. |
| Keywords: | coarse-grained soil scaling method maximum dry density gradation |
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