{"title":"应变速率对压实土强度的影响","authors":"D. Hampton, E. J. Yoder","doi":"10.5703/1288284314383","DOIUrl":null,"url":null,"abstract":"THE RESULTS OF A LABORATORY INVESTIGATION ARE REPORTED OF THE EFFECTS OF RATE OF STRAIN ON THE STRENGTH OF REMOLDED SOIL. TWO SOILS WERE SELECTED FOR PURPOSES OF THIS STUDY: (1) A CLAY DERIVED FROM LIMESTONE AND PEDOLOGICALLY CLASSIFIED AS FREDERICK, AND (2) A GLACIAL SILTY CLAY, PEDOLOGICALLY CLASSIFIED AS CROSBY, B HORIZON. THESE SOILS WERE SELECTED PRIMARILY ON THE BASIS OF THEIR DIFFERENCE IN PLASTICITY. RATE OF STRAIN WAS CONSIDERED THE MOST IMPORTANT VARIABLE AND IT WAS STUDIED FROM 0.55 IN./MIN. TO 1,780 IN./MIN. THE FACTORS OF MOISTURE CONTENT AND DRY DENSITY WERE ALSO OF PRIME IMPORTANCE. CONSEQUENTLY, THREE COMPACTIVE EFFORTS WERE USED AND SPECIMENS WERE MOLDED AND TESTED ON BOTH SIDES OF THE OPTIMUM MOISTURE CONTENT OF EACH COMPACTIVE EFFORT. THE UNCONFINED COMPRESSIVE STRENGTH TEST WAS USED AS A STRENGTH CRITERION AND THE EFFECT OF THE AFOREMENTIONED VARIABLES UPON THE ULTIMATE STRENGTH AND MODULUS OF DEFORMATION OF THE SAMPLES, AS DETERMINED BY THIS TEST, ARE REPORTED. /AUTHOR/","PeriodicalId":12918,"journal":{"name":"Highway Research Board bulletin","volume":"50 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"1958-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Effect of Rate of Strain on the Strength of Compacted Soil\",\"authors\":\"D. Hampton, E. J. Yoder\",\"doi\":\"10.5703/1288284314383\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"THE RESULTS OF A LABORATORY INVESTIGATION ARE REPORTED OF THE EFFECTS OF RATE OF STRAIN ON THE STRENGTH OF REMOLDED SOIL. TWO SOILS WERE SELECTED FOR PURPOSES OF THIS STUDY: (1) A CLAY DERIVED FROM LIMESTONE AND PEDOLOGICALLY CLASSIFIED AS FREDERICK, AND (2) A GLACIAL SILTY CLAY, PEDOLOGICALLY CLASSIFIED AS CROSBY, B HORIZON. THESE SOILS WERE SELECTED PRIMARILY ON THE BASIS OF THEIR DIFFERENCE IN PLASTICITY. RATE OF STRAIN WAS CONSIDERED THE MOST IMPORTANT VARIABLE AND IT WAS STUDIED FROM 0.55 IN./MIN. TO 1,780 IN./MIN. THE FACTORS OF MOISTURE CONTENT AND DRY DENSITY WERE ALSO OF PRIME IMPORTANCE. CONSEQUENTLY, THREE COMPACTIVE EFFORTS WERE USED AND SPECIMENS WERE MOLDED AND TESTED ON BOTH SIDES OF THE OPTIMUM MOISTURE CONTENT OF EACH COMPACTIVE EFFORT. THE UNCONFINED COMPRESSIVE STRENGTH TEST WAS USED AS A STRENGTH CRITERION AND THE EFFECT OF THE AFOREMENTIONED VARIABLES UPON THE ULTIMATE STRENGTH AND MODULUS OF DEFORMATION OF THE SAMPLES, AS DETERMINED BY THIS TEST, ARE REPORTED. /AUTHOR/\",\"PeriodicalId\":12918,\"journal\":{\"name\":\"Highway Research Board bulletin\",\"volume\":\"50 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1958-12-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Highway Research Board bulletin\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5703/1288284314383\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Highway Research Board bulletin","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5703/1288284314383","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
摘要
报告了应变速率对重塑土强度影响的实验室调查结果。本研究选择了两种土壤:(1)一种来自石灰岩的粘土，在土壤学上被分类为frederick;(2)一种冰川粉质粘土，在土壤学上被分类为crosby, b horizon。这些土壤的选择主要是基于它们的可塑性差异。应变速率被认为是最重要的变量，从0.55英寸/分钟开始研究。至1780英寸/分钟。水分含量和干密度也是主要影响因素。因此，使用了三个压实努力，并在每个压实努力的最佳含水率两侧进行了模塑和测试。采用无侧限抗压强度试验作为强度标准，并报道了上述变量对试验确定的试样极限强度和变形模量的影响。/作者/
Effect of Rate of Strain on the Strength of Compacted Soil
THE RESULTS OF A LABORATORY INVESTIGATION ARE REPORTED OF THE EFFECTS OF RATE OF STRAIN ON THE STRENGTH OF REMOLDED SOIL. TWO SOILS WERE SELECTED FOR PURPOSES OF THIS STUDY: (1) A CLAY DERIVED FROM LIMESTONE AND PEDOLOGICALLY CLASSIFIED AS FREDERICK, AND (2) A GLACIAL SILTY CLAY, PEDOLOGICALLY CLASSIFIED AS CROSBY, B HORIZON. THESE SOILS WERE SELECTED PRIMARILY ON THE BASIS OF THEIR DIFFERENCE IN PLASTICITY. RATE OF STRAIN WAS CONSIDERED THE MOST IMPORTANT VARIABLE AND IT WAS STUDIED FROM 0.55 IN./MIN. TO 1,780 IN./MIN. THE FACTORS OF MOISTURE CONTENT AND DRY DENSITY WERE ALSO OF PRIME IMPORTANCE. CONSEQUENTLY, THREE COMPACTIVE EFFORTS WERE USED AND SPECIMENS WERE MOLDED AND TESTED ON BOTH SIDES OF THE OPTIMUM MOISTURE CONTENT OF EACH COMPACTIVE EFFORT. THE UNCONFINED COMPRESSIVE STRENGTH TEST WAS USED AS A STRENGTH CRITERION AND THE EFFECT OF THE AFOREMENTIONED VARIABLES UPON THE ULTIMATE STRENGTH AND MODULUS OF DEFORMATION OF THE SAMPLES, AS DETERMINED BY THIS TEST, ARE REPORTED. /AUTHOR/
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