Optimal placement of two soil soundings for rectangular footings  

作　　者：Marcin Chwaιa 

机构地区：[1]Department of Geotechnology,Hydro Technology,and Underground and Hydro Engineering,Faculty of Civil Engineering,Wrocław University of Science and Technology,Wybrze_ze Wyspianskiego 27,Wrocław,50-370,Poland

出　　处：《Journal of Rock Mechanics and Geotechnical Engineering》2021年第3期603-611,共9页岩石力学与岩土工程学报（英文版）

摘　　要：This study uses a recently proposed algorithm for consideration of soil sounding locations in the bearing capacity estimations of spatially variable soil for rectangular footings.The objective of the study is to assess the possibility of indicating general guidelines for optimal soil sounding locations in the case of two soundings and rectangular footings.The possibility of proposing such general guidelines would be extremely valuable from the engineering practice point of view.Moreover,it would be promising for future studies concerning more complex foundation arrangements.For this reason,numerous scenarios are analyzed for a variety of vertical and horizontal fluctuation scales and a variety of rectangular foundation lengths.For generality of the results,two correlation structures are considered,i.e.the Gaussian and the Markovian ones.The optimal sounding location results are discussed.The observations indicate that,for a specified vertical fluctuation scale,all optimal borehole locations in dimensionless coordinates form a curve.This phenomenon can be utilized in practical applications.The potential applications of the obtained results and the directions for future studies in this area are also discussed.

关 键 词：Optimal borehole location Spatial variability Soil sounding Bearing capacity Fluctuation scale Rectangular foundation 

分 类 号：TU47[建筑科学—结构工程] P642[建筑科学—土工工程]