Geotechnical and Geological Engineering最新文献_第9页

Evaluation of Pile Driving Effects on Slope Stability in Clay 土中打桩对边坡稳定性影响的评价

Geotechnical and Geological Engineering Pub Date : 2023-09-21 DOI: 10.1007/s10706-023-02636-w

Yeganeh Attari, Hans Petter Jostad, Gustav Grimstad, Gudmund Reidar Eiksund

{"title":"Evaluation of Pile Driving Effects on Slope Stability in Clay","authors":"Yeganeh Attari, Hans Petter Jostad, Gustav Grimstad, Gudmund Reidar Eiksund","doi":"10.1007/s10706-023-02636-w","DOIUrl":"https://doi.org/10.1007/s10706-023-02636-w","url":null,"abstract":"Abstract Pile driving can trigger slope failure, specifically in sensitive soil deposits or marginally stable slopes. Cases of slope failure during pile installation have been reported in countries such as Norway, Sweden and Canada where soft sensitive clay deposits are prevalent. Although a few approaches have been suggested to assess the factor of safety of a slope during pile driving, there is currently no standard method recognized by the geotechnical society to account for the reduction of safety factor of a slope as an effect of pile installation. Some approaches suggest using the excess pore pressure generated during pile driving to account for the reduction in soil strength (by reducing effective stresses), neglecting the change in total stresses. This paper discusses the accuracy of stability analysis methods currently in use for this problem by looking at stress changes in the soil during pile driving as well as using numerical analysis results. Importantly, the paper identifies the shortcomings regarding these approaches, thus allowing geo-engineers to understand the limitations of their analysis and the uncertainties in the models.","PeriodicalId":48246,"journal":{"name":"Geotechnical and Geological Engineering","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136235323","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}

引用次数: 0

Large-Scale Laboratory Testing of Helical Piles: Effect of the Shape 螺旋桩的大型室内试验:形状的影响

Geotechnical and Geological Engineering Pub Date : 2023-09-21 DOI: 10.1007/s10706-023-02640-0

Abdullah M. A. Al-Rawabdeh, Jayan S. Vinod, Martin D. Liu, Timothy J. McCarthy, Scott Redwood

引用次数: 0

Numerical Optimisation of Excavation Pit Design Using Finite Element Analyses 基于有限元分析的基坑设计数值优化

Geotechnical and Geological Engineering Pub Date : 2023-09-21 DOI: 10.1007/s10706-023-02639-7

Hauke Jürgens, Sascha Henke

{"title":"Numerical Optimisation of Excavation Pit Design Using Finite Element Analyses","authors":"Hauke Jürgens, Sascha Henke","doi":"10.1007/s10706-023-02639-7","DOIUrl":"https://doi.org/10.1007/s10706-023-02639-7","url":null,"abstract":"Abstract The present study focusses on optimising a single supported excavation pit to achieve a more economical design using finite element analyses. Two methods for automating the derivation of the excavation pit’s necessary embedment depth are presented, which involve either embedment depth reduction using additional calculation phases or adapting the entire model with renewed discretisation. The bending moments as well as the earth pressure distribution along the wall show good agreement, indicating that both methods are suitable for application. Subsequently, the feasibility of using optimisation algorithms (Particle Swarm Optimisation and Differential Evolution) for dimensioning the single supported excavation pit regarding stress analysis of the wall is investigated. Therefore, the embedment depth and the position of the strut are varied for five different sheet pile walls and three different strut profiles. The results demonstrate that both algorithms perform well, particularly with a higher number of calculation steps. After varying iteration steps and population size, the Differential Evolution approach shows better performance compared to Particle Swarm Optimisation by means of finding the optimal solution after a lower number of computational steps.","PeriodicalId":48246,"journal":{"name":"Geotechnical and Geological Engineering","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136152936","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}

引用次数: 0

Predicting the Allowable Settlement of Reinforced Soil Foundations: A Laboratory Study 加筋土基础许用沉降预测:实验室研究

Geotechnical and Geological Engineering Pub Date : 2023-09-20 DOI: 10.1007/s10706-023-02637-9

Venkatesh Buragadda, Eswara Reddy Orekanti

引用次数: 0

Stability Analysis of Pillars in an Inclined Airleg Stope Under Static Loading Conditions 静载条件下倾斜气腿采场矿柱稳定性分析

Geotechnical and Geological Engineering Pub Date : 2023-09-20 DOI: 10.1007/s10706-023-02631-1

Eugie Kabwe

引用次数: 0

Probabilistic Analysis of Passive Trapdoor in c-ϕ Soil Considering Multivariate Cross-Correlated Random Fields 考虑多元交叉相关随机场的c- φ土壤被动活板门概率分析

Geotechnical and Geological Engineering Pub Date : 2023-09-19 DOI: 10.1007/s10706-023-02649-5

Thanh Son Nguyen, Weeradetch Tanapalungkorn, Suraparb Keawsawasvong, Van Qui Lai, Suched Likitlersuang

引用次数: 0

Research on Interference Signal Recognition in P Wave Pickup and Magnitude Estimation P波提取与幅度估计中干扰信号识别的研究

Geotechnical and Geological Engineering Pub Date : 2023-09-18 DOI: 10.1007/s10706-023-02648-6

Deyu Yin, Yadong Chen, Yushun Yang, Yongzhen Cheng, Chunlei Zhang

引用次数: 0

Estimation of Settlement of Pile Group in Clay Using Soft Computing Techniques 基于软计算技术的土体群桩沉降估计

Geotechnical and Geological Engineering Pub Date : 2023-09-18 DOI: 10.1007/s10706-023-02643-x

Jitendra Khatti, Hanan Samadi, Kamaldeep Singh Grover

引用次数: 2

Experimental Study on the Characteristics of Overlying Rock Movement in Mining Area 矿区上覆岩移动特征试验研究

Geotechnical and Geological Engineering Pub Date : 2023-09-17 DOI: 10.1007/s10706-023-02645-9

Bin Xu, Weizheng Xu, Yan Zhang

引用次数: 0

Planar Slope Failure in Heavily Jointed Rock: Tension Cracks and Nonlinear Strength 大节理岩体的平面边坡破坏:张拉裂缝和非线性强度

Geotechnical and Geological Engineering Pub Date : 2023-09-17 DOI: 10.1007/s10706-023-02629-9

Roberto Úcar, Norly Belandria, Alfredo Corredor, Luis Arlegui

{"title":"Planar Slope Failure in Heavily Jointed Rock: Tension Cracks and Nonlinear Strength","authors":"Roberto Úcar, Norly Belandria, Alfredo Corredor, Luis Arlegui","doi":"10.1007/s10706-023-02629-9","DOIUrl":"https://doi.org/10.1007/s10706-023-02629-9","url":null,"abstract":"Abstract This work proposes the calculation of the factor of safety for a strongly jointed rock mass in the case of plane failure with a tensile crack whose exact position or depth is not known but is expected to exist. This calculation is performed by applying the non-linear failure criteria of the Focus Procedure of Úcar and Hoek–Brown’s and implementing the necessary formulae in a spreadsheet. The aim is to provide a simple, cost-effective, and easy-to-use procedure that is useful in the early stages of a project or as a starting point for more detailed investigations. Besides slope geometry and strength parameters, the required parameters are the RMR of the rock mass or its m i , depending on the criterion used. The proposed procedure allows for the estimation of the factor of safety, the position and depth of the tensile crack, and the inclination of the failure plane in the most unfavorable case, with reasonable accuracy, using an iterative process with the conventional tools available in common spreadsheet programs. An example is provided in which an accuracy of 86–96% for the factor of safety is obtained.","PeriodicalId":48246,"journal":{"name":"Geotechnical and Geological Engineering","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135259538","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}

引用次数: 0