Geomechanics and Geoengineering-An International Journal最新文献_第2页

Performance evaluation of post-grouting for bored piles installed in inhomogeneous gravel pebble stratum overlaid by deep and soft soil layers 深层软土层非均质卵砾石地层钻孔灌注桩后注浆性能评价

IF 1.3

Geomechanics and Geoengineering-An International Journal Pub Date : 2023-02-24 DOI: 10.1080/17486025.2023.2181406

J. Wang, T. Jin, W. Qin, F. Zhang

引用次数: 0

Effect of Lime, Kaolinite and Bentonite treatment on mechanical behaviour of micaceous sand 石灰、高岭石和膨润土处理对云母砂力学性能的影响

IF 1.3

Geomechanics and Geoengineering-An International Journal Pub Date : 2023-02-24 DOI: 10.1080/17486025.2023.2181405

Zarnain Fayaz, Saloni Pandya, A. Sachan

引用次数: 0

Numerical analysis of wave propagation and vibration attenuation effects of periodic scattering piles in unsaturated poroviscoelastic ground 非饱和孔粘弹性地基中周期散射桩波传播与减振效果的数值分析

IF 1.3

Geomechanics and Geoengineering-An International Journal Pub Date : 2022-12-28 DOI: 10.1080/17486025.2022.2159545

Shao-wu Li

引用次数: 0

Reply to the Discussion: Cherif Taiba et al. (2022), “Impact of the overall regularity and related granulometric characteristics on the critical state soil mechanics of natural sands: a state-of-the art review”, Geomechanics and Geoengineering, doi: 10.1080/17486025.2022.2044076 对讨论的回复：Cherif Taiba等人（2022），“天然砂的整体规律性和相关粒度特征对临界状态土壤力学的影响：最新进展”，地质力学和地质工程，doi:10.1080/1748605.2022.2044076

IF 1.3

Geomechanics and Geoengineering-An International Journal Pub Date : 2022-12-12 DOI: 10.1080/17486025.2022.2153176

Abdellah Cherif Taiba, Y. Mahmoudi, M. Belkhatir

引用次数: 1

Controlled Low-Strength Materials (CLSM) as backfill: experimental investigation on CLSM properties and numerical evaluation of stresses and strains using PLAXIS 2D 可控低强度材料(CLSM)作为充填体:CLSM性能试验研究及PLAXIS 2D应力应变数值计算

IF 1.3

Geomechanics and Geoengineering-An International Journal Pub Date : 2022-09-09 DOI: 10.1080/17486025.2022.2121431

L. K, Akhilesh Kumar, C. Singh

{"title":"Controlled Low-Strength Materials (CLSM) as backfill: experimental investigation on CLSM properties and numerical evaluation of stresses and strains using PLAXIS 2D","authors":"L. K, Akhilesh Kumar, C. Singh","doi":"10.1080/17486025.2022.2121431","DOIUrl":"https://doi.org/10.1080/17486025.2022.2121431","url":null,"abstract":"ABSTRACT Retaining walls are a part of the geotechnical construction industry for the support of structures from soil erosion. Granular materials are conventionally used as backfill behind retaining walls. Instead of the conventional compacted granular fill, other industrial by-products are also used nowadays. The utilisation of these industrial by-products for Civil engineering applications helps to build a sustainable environment by reducing the waste depositions. In this paper, an experimental study was conducted to evaluate the properties of coal ash-based Controlled Low Strength Materials (CLSM) for backfill applications. The properties of pond ash-based CLSM mixes were studied to identify the effectiveness in utilising CLSM for backfill applications. Further, numerical analysis using PLAXIS 2D was carried out to evaluate the stresses and displacements developed in retaining walls for different backfilling materials. It was observed that CLSM mixes exhibit the properties required for utilising it as a backfill material. The stresses and deformations developed in situations where CLSM was used were found to be negligible compared to the normal compacted backfill materials. Thus, the studies on CLSM mixes showed that pond ash can be used as a replacement to natural aggregates which can be used as a backfill for retaining wall applications.","PeriodicalId":46470,"journal":{"name":"Geomechanics and Geoengineering-An International Journal","volume":"18 1","pages":"577 - 592"},"PeriodicalIF":1.3,"publicationDate":"2022-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44187165","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

Transient settlement estimation of shallow foundation under eccentrically inclined static and cyclic load on granular soil using artificial intelligence techniques 用人工智能技术估算颗粒土上偏心倾斜静载和循环荷载作用下浅基础的瞬态沉降

IF 1.3

Geomechanics and Geoengineering-An International Journal Pub Date : 2022-07-26 DOI: 10.1080/17486025.2022.2103187

Suvendu Kumar Sasmal, R. Behera

{"title":"Transient settlement estimation of shallow foundation under eccentrically inclined static and cyclic load on granular soil using artificial intelligence techniques","authors":"Suvendu Kumar Sasmal, R. Behera","doi":"10.1080/17486025.2022.2103187","DOIUrl":"https://doi.org/10.1080/17486025.2022.2103187","url":null,"abstract":"ABSTRACT The present study focuses on estimating the transient response of shallow strip footing on granular soil using soft computing techniques. A shallow foundation is numerically modelled using Beam on Nonlinear Winkler Foundation model. Then the footing is subjected to a combination of allowable static and cyclic load depending on the ultimate bearing capacity of the footing. The eccentricity and angle of load inclination of static load are varied to simulate more practical conditions. The cyclic load is rectangular pulse load. One cycle of rectangular pulse load is applied to observe the immediate response of the foundation, referred as the transient response. Apart from the loading parameters, three granular soils of three different relative densities (D r = 35%, 51% and 69%) are considered. Based on numerical simulation of 1728 conditions, soft computing models are developed using five techniques, viz. Neural Networks, Support Vector Machines, Multivariate Adaptive Regression Splines, Adaptive Neuro Fuzzy Interface System and Multi Gene Genetic Programming. It is found that the static load on the foundation is the most important parameter controlling the transient response of the footing.","PeriodicalId":46470,"journal":{"name":"Geomechanics and Geoengineering-An International Journal","volume":"18 1","pages":"560 - 576"},"PeriodicalIF":1.3,"publicationDate":"2022-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49612838","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: 1

Evaluation of liquefaction potential by energy-based and stress-based methods and gene expressing programming (case study: Tabriz city) 基于能量、压力和基因表达编程的液化潜力评价(以大不里士市为例)

IF 1.3

Geomechanics and Geoengineering-An International Journal Pub Date : 2022-07-18 DOI: 10.1080/17486025.2022.2096264

Armin Sahebkaram Alamdari, R. Dabiri, R. Jani, Fariba Behrouz Sarand

{"title":"Evaluation of liquefaction potential by energy-based and stress-based methods and gene expressing programming (case study: Tabriz city)","authors":"Armin Sahebkaram Alamdari, R. Dabiri, R. Jani, Fariba Behrouz Sarand","doi":"10.1080/17486025.2022.2096264","DOIUrl":"https://doi.org/10.1080/17486025.2022.2096264","url":null,"abstract":"ABSTRACT Liquefaction in soil layers is a vital factor intensifying earthquake damages.This study compares the numerical evaluation process and the results of two methods based on stress and energy. It is inferred from the calculations that the stress-based method predicts a higher liquefaction potential with a lower safety factor as it promises liquefaction in deeper soil layers. In return, liquefaction tends to occur at a shallower depth with higher intensity in the energy-based method. Through applying the two approaches based on the data collected from different areas around Tabriz, a liquefaction-zoning map is presented. Despite being far from the fault, the central to the western and the southwestern parts of Tabriz has a high liquefaction potential. Eventually, based on the evaluated liquefaction potential using the stated methods and adopting the gene expression programming (GEP) approach, an equation is introduced to estimate the liquefaction potential for the case study. The predictions of the proposed models were consistent with the findings of experimental methods, demonstrating appropriate statistical measures and parametric analysis. It can also be concluded from the results of the parametric analysis, that the parameters of maximum acceleration, earthquake magnitude, and SPT number have more great impact on soil liquefaction.","PeriodicalId":46470,"journal":{"name":"Geomechanics and Geoengineering-An International Journal","volume":"18 1","pages":"517 - 538"},"PeriodicalIF":1.3,"publicationDate":"2022-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41992123","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

Praseodymium-oxide decorated montmorillonite nanocomposite as a novel admixture for dredged soil stabilisation 氧化镨修饰蒙脱土纳米复合材料用于疏浚土稳定的新型掺合料

IF 1.3

Geomechanics and Geoengineering-An International Journal Pub Date : 2022-07-16 DOI: 10.1080/17486025.2022.2099019

Falk Ayub, S. Khan, Sarmishta Rudra Paul

{"title":"Praseodymium-oxide decorated montmorillonite nanocomposite as a novel admixture for dredged soil stabilisation","authors":"Falk Ayub, S. Khan, Sarmishta Rudra Paul","doi":"10.1080/17486025.2022.2099019","DOIUrl":"https://doi.org/10.1080/17486025.2022.2099019","url":null,"abstract":"ABSTRACT Herein a novel nanocomposite, Praseodymium oxide-nano montmorillonite (Pr-nMMT)was fabricated and explored as stabilising admixture for enhancing the strength of dredged soils. The compaction, permeability, direct shear, california bearing ratio (CBR), and unconfined compressive strength (UCS) tests performed on the dredged soil samples collected from the Shalimar site along the Dal Lake Srinagar rendered it unsuitable as construction material and needed stabilisation before using it as a building material. Different percentages of Pr-nMMT (0.25–1%) were used for stabilisation purposes and it revealed that the addition of Pr-nMMT to soil increased maximum dry density (MDD), shear strength parameters (angle of internal friction and cohesion), CBR, and decreased optimum moisture content (OMC), plasticity index, and hydraulic conductivity. The UCS enhanced notably with Pr-nMMT content and increment in curing time. The optimum Pr-nMMT content determined was 0.5% as it demonstrated the maximum value of UCS at 0, 7 and 14 days of curing beyond which the strength showed a declining trend. It was anticipated that Pr-nMMT filled pores between soil particles, therefore resisting sliding among soil particles and thus increasing the strength of treated dredged soil. The results portray Pr-nMMT as an efficient nano admixture for the stabilisation of dredged soil.","PeriodicalId":46470,"journal":{"name":"Geomechanics and Geoengineering-An International Journal","volume":"18 1","pages":"548 - 559"},"PeriodicalIF":1.3,"publicationDate":"2022-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45295735","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: 1

Effect on bearing capacity and settlement behaviour of fly-ash reinforced with fine micropiles 细粒微桩增强粉煤灰承载力及沉降特性的影响

IF 1.3

Geomechanics and Geoengineering-An International Journal Pub Date : 2022-07-06 DOI: 10.1080/17486025.2022.2096265

M. A. Farooqi, K. Ali, I. Shah, K. Alotaibi

{"title":"Effect on bearing capacity and settlement behaviour of fly-ash reinforced with fine micropiles","authors":"M. A. Farooqi, K. Ali, I. Shah, K. Alotaibi","doi":"10.1080/17486025.2022.2096265","DOIUrl":"https://doi.org/10.1080/17486025.2022.2096265","url":null,"abstract":"ABSTRACT Micropiling is an extensively used method for improving the stability of building foundations and load-carrying capacity of the soil. Unlike regular piling, it can be employed without pile driving equipment and, hence, it is a versatile option of soil reinforcement under space-restricted situations. Since, it is an economical and easy to implement option for soil improvement, this paper intends to study the improvement in bearing capacity and settlement behaviour of a fly-ash bed using fine micropiles under isolated footings, for low-cast and lightweight structures. Fly-ash, a by-product of coal-fired power plants, is used in the experiment because it is extensively used as a filling material for housing projects in low-lying areas and pavements. Micropiles were installed underneath the footing as well as beyond the periphery of footing with varied spacing and extent ratio. The results are depicted through two dimensionless constants, namely bearing capacity ratio (BCR) and settlement reduction factor (SRF). Significant improvements have been observed in load-carrying capacity and settlement potential due to decrease in spacing and increase in lateral extent of micropiles. The optimum configuration of spacing and lateral extend achieved 135% bearing capacity improvement with 71% decrease in settlement.","PeriodicalId":46470,"journal":{"name":"Geomechanics and Geoengineering-An International Journal","volume":"18 1","pages":"539 - 547"},"PeriodicalIF":1.3,"publicationDate":"2022-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48941395","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: 1

Multiscale modelling of the seismic response of shallow foundations on saturated granular soils 饱和颗粒土浅层地基地震响应的多尺度模拟

IF 1.3

Geomechanics and Geoengineering-An International Journal Pub Date : 2022-07-04 DOI: 10.1080/17486025.2021.1912405

U. El Shamy

{"title":"Multiscale modelling of the seismic response of shallow foundations on saturated granular soils","authors":"U. El Shamy","doi":"10.1080/17486025.2021.1912405","DOIUrl":"https://doi.org/10.1080/17486025.2021.1912405","url":null,"abstract":"ABSTRACT This paper presents a multiscale approach to analyse the seismic response of a spread-footing system founded on saturated granular soil deposits that might be susceptible to liquefaction. The pore-fluid is idealised as a continuum by using a homogenised form of Navier-Stokes equations that accounts for the presence of the solid particles. These particles are modelled at a microscale using the discrete element method. The foundation is idealised as a square rigid block by generating a group of glued particles. Computational simulations were conducted to investigate the response of spread-footings on saturated deposits when subjected to a seismic excitation. For the considered closely-spaced foundation system, it is possible to have a foundation settlement smaller than the free-field. Stress overlap between neighbouring footings could lead to an increase in soil stiffness and less susceptibility to pore-pressure build-up and volume decrease compared with the free-field. The majority of the foundation settlement occurs during shaking, whereas settlement continues to accumulate post shaking in the free-field. Evaluation of the contribution of base and lateral walls of the foundation to the lateral response of the footing showed that the predominant contributors were the base shear force and walls normal to the direction of shaking.","PeriodicalId":46470,"journal":{"name":"Geomechanics and Geoengineering-An International Journal","volume":"17 1","pages":"1073 - 1094"},"PeriodicalIF":1.3,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17486025.2021.1912405","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60093215","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: 1