{"title":"Soil Resistance Predictions From Pile Dynamics","authors":"F. Rausche, F. Moses, G. Goble","doi":"10.1061/40743(142)24","DOIUrl":"https://doi.org/10.1061/40743(142)24","url":null,"abstract":"The present work extends the application of the force and acceleration records to the calculation of the distribution of soil resistance along the pile. It also shows how the records are used to predict the magnitude of dynamic resistance that the soil applies to the pile, an important factor in choosing efficient hammer characteristics. A method for obtaining a more accurate simplified prediction of total static bearing capacity is also presented. It should be emphasized that the aforementioned predictions are all made from measurements at the pile top only. The work is correlated by presentation of results for 24 pile tests which include construction static load tests as well as specially instrumented load test piles. The application of these results can have considerable impact on foundation costs. Static load tests are very costly and time consuming. In Ohio a single test on a service pile using tension reaction piles (also service piles) typically costs $3,000 to $5,000. This static test provides much useful information about the particular pile which was tested. However, due to variability of soil properties the information may be of less value for other piles in the structure. This is reflected in the large factors of safety commonly used for piles. The proposed dynamic measurements methods can be applied to a substantial number of service piles at less than the cost of a single static load test. The dynamic analysis herein differs from the general dynamics problem in which either the boundary force or acceleration record is given as input and the other record calculated as output. In the present dynamic analysis, both force and acceleration are shown and thus one of the two records can be viewed as redundant information. The second record is, therefore, used in the present analysis to give information on pile resistance effects; e.g., in the absence of soil resistance, the acceleration at the pile top completely determines the force at the top from Newton's and Hooke's laws. The presence of resistance along the pile and at the pile tip affects the force at the top in a precise and predictable manner and makes it possible to compute t e magnitude and location of resistance forces along the pile. A simple soil resistance model is used, which consists of an elastoplastic shear resistance and a linear viscous damper. The dynamic analysis will be reviewed herein to present the basic ideas behind the work. The detailed mathematical expressions are given in Refs. 3 and 9.","PeriodicalId":424708,"journal":{"name":"Journal of Soil Mechanics & Foundations Div","volume":"244 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133880117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"EXPERIMENTS IN EXPANDABLE TIP PILING","authors":"T. Adams, Fred C. Stepanich","doi":"10.1016/0148-9062(74)93041-1","DOIUrl":"https://doi.org/10.1016/0148-9062(74)93041-1","url":null,"abstract":"","PeriodicalId":424708,"journal":{"name":"Journal of Soil Mechanics & Foundations Div","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1973-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133633652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"COMPACTION AND STRENGTH OF SLIGHTLY ORGANIC SOILS","authors":"A. G. Franklin, L. Orozco, R. Semrau","doi":"10.1016/0148-9062(74)92858-7","DOIUrl":"https://doi.org/10.1016/0148-9062(74)92858-7","url":null,"abstract":"","PeriodicalId":424708,"journal":{"name":"Journal of Soil Mechanics & Foundations Div","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1973-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128382077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"SUBSURFACE INVESTIGATION FOR DESIGN AND CONSTRUCTION OF FOUNDATIONS OF BUILDINGS: PART I; PART II; PARTS III AND IV; AND APPENDICES A AND B","authors":"W. C. Hill","doi":"10.1016/0148-9062(80)90183-7","DOIUrl":"https://doi.org/10.1016/0148-9062(80)90183-7","url":null,"abstract":"","PeriodicalId":424708,"journal":{"name":"Journal of Soil Mechanics & Foundations Div","volume":"19a 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1973-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128190200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"EMBANKMENT CONSTRUCTION ON YIELDING SEA BOTTOM","authors":"A. Stamatopoulos, P. C. Kotzias","doi":"10.4043/1470-MS","DOIUrl":"https://doi.org/10.4043/1470-MS","url":null,"abstract":"Results are included from four construction sites, i.e., two loading piers, one runway extension into the sea, and one solar evaporation scheme. In these cases, soil rupture in the foundation was firstly predicted and then observed and recorded during construction. Subsurface conditions at each of the four sites are described. Settlement readings for periods of up to 7 years are included. The geometry of failed masses is presented in terms of contour lines and cross sections showing the shape of heaving on the two sides of the embankment. A field method of following the transition from foundation stability to foundation rupture and then from mild to intense base failure is explained. The application of this method to specific instances is described. An approximate stability equation is derived and its application to the four case histories is outlined.","PeriodicalId":424708,"journal":{"name":"Journal of Soil Mechanics & Foundations Div","volume":"267 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1972-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115851250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"DISCUSSION OF DYNAMIC MODULI AND DAMPING RATIOS FOR A SOFT CLAY","authors":"K. S. Sankaran, Madurachari S. Subrahmanyam","doi":"10.1061/JSFEAQ.0001671","DOIUrl":"https://doi.org/10.1061/JSFEAQ.0001671","url":null,"abstract":"WHILE THE AUTHORS ARE TO BE CONGRATULATED FOR THEIR EVALUATION OF THE SHEAR MODULUS OF CLAYS SUBJECTED TO DYNAMIC LOADING CONDITIONS, THE MODULUS OBTAINED FROM LABORATORY DYNAMIC TESTS SHOULD BE USED WITH CAUTION IN PREDICTING THE RESPONSE OF FOUNDATIONS UNDER DYNAMIC LOADING. TWO APPROACHES TO THE PROBLEM-- ONE BASED ON THE THEORY OF ELASTICITY AND THE OTHER ON TORSIONAL AND LONGITUDINAL VIBRATION TESTS---ARE CITED AS EVIDENCE THAT THE INDEPENDENT EVALUATION OF THE SHEAR MODULUS AND POISSON'S RATIO MAY NOT GIVE THE DESIRED SOIL PARAMETER WHICH IS GENERALLY NECESSARY TO PREDICT THE RESPONSE OF FOUNDATIONS SUBJECTED TO DYNAMIC LOADING.","PeriodicalId":424708,"journal":{"name":"Journal of Soil Mechanics & Foundations Div","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1971-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132811080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"STRENGTH OF ANISOTROPICALLY CONSOLIDATED COMPACTED CLAY","authors":"Kenneth L. Lee, Ross A. Morrison","doi":"10.1016/0022-4898(72)90025-0","DOIUrl":"https://doi.org/10.1016/0022-4898(72)90025-0","url":null,"abstract":"","PeriodicalId":424708,"journal":{"name":"Journal of Soil Mechanics & Foundations Div","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1970-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127763278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"CLOSURE OF COMPARISON OF PLANE STRAIN AND TRIAXIAL TESTS ON SAND","authors":"Kenneth L. Lee","doi":"10.1016/0022-4898(70)90021-2","DOIUrl":"https://doi.org/10.1016/0022-4898(70)90021-2","url":null,"abstract":"","PeriodicalId":424708,"journal":{"name":"Journal of Soil Mechanics & Foundations Div","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1970-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126243155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"DISCUSSION OF STRENGTH OF COMPACTED CLAY AT HIGH PRESSURE","authors":"T. S. Ayyar","doi":"10.1061/JSFEAQ.0001375","DOIUrl":"https://doi.org/10.1061/JSFEAQ.0001375","url":null,"abstract":"THE DISCUSSER REFERS TO THE DIFFERENCES BETWEEN CLAYS PREPARED BY STATIC COMPACTION AND THOSE PREPARED BY KNEADING COMPACTION. SOME OF THE OBSERVATIONS IN THE PAPER COULD BE EXPLAINED IN TERMS OF THE RESIDUAL EFFECTIVE STRESS EXISTING AT THE END OF COMPACTION IN TERMS OF THE POSTULATED PARTICLE ORIENTATION. IT IS FELT THAT A MORE SATISFACTORY CONCEPT WHICH CAN EXPLAIN THE DIFFERENCES IN THE SWELLING OF THE SAMPLES OBTAINED BY STATIC AND KNEADING COMPACTION IS THE POSTULATION OF DOMAINS OR PACKETS AS REPORTED BY INGLES. EXPLANATION IS GIVEN FOR THE HIGH STRENGTH OF STATICALLY COMPACTED SAMPLES OBSERVED IN UU TESTS UNDER HIGH PRESSURES IN SPITE OF THEIR RELATIVE FLEXIBILITY. THE DIFFERENCES ARE DISCUSSED BETWEEN THE RELATIVE STRENGTH OF SAMPLES BY UU AND CU TESTS. IT IS FELT THAT THE CURVATURE OF THE MOHR ENVELOPE WITH INCREASING EFFECTIVE STRESS NEEDS FURTHER STUDY. REFERENCES: STRENGTH OF COMPACTED CLAY AT HIGH PRESSURE, KENNETH L. LEE, STEVEN C. HALEY, ASCE PROCEEDINGS PAPER 6239, NOVEMBER, 1968.","PeriodicalId":424708,"journal":{"name":"Journal of Soil Mechanics & Foundations Div","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1969-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124248860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
