发布求助
文献互助 智能选刊 最新文献

International Journal of Geotechnical Engineering最新文献

筛选
英文 中文
Twin tunnelling caused distortions and its effect on a hospital building on mixed ground conditions 混合地基条件下双隧道开挖对医院建筑的变形及影响
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2022-09-04 DOI: 10.1080/19386362.2022.2117342
Aswathy M S, V. M
{"title":"Twin tunnelling caused distortions and its effect on a hospital building on mixed ground conditions","authors":"Aswathy M S, V. M","doi":"10.1080/19386362.2022.2117342","DOIUrl":"https://doi.org/10.1080/19386362.2022.2117342","url":null,"abstract":"ABSTRACT An extensive geotechnical assessment of a hospital building under-crossed by twin tunnels is presented in this paper. The case study considered in the study is Phase III of Delhi Metro Gray line, which has been built recently using Tunnel Boring Machine. Finite element analysis was carried out to simulate the construction of two tunnels underneath the building, and the soil is simulated using an advanced constitutive model. The numerical model was validated against the field monitoring data, and the effect of tunnelling on the building deformation is also studied. Also, the comparison of building settlements with greenfield conditions is carried out. The study showed that the building influences the pattern of the settlement trough. Quantitative study of the settlement showed that there was no undue distress to the building due to the construction of twin tunnels, suggesting the safe crossing of twin tunnel below hospital building.","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"17 1","pages":"10 - 25"},"PeriodicalIF":1.9,"publicationDate":"2022-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44070115","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
Influence of soil-water characteristic curve on the safe height and stand-up time of unsupported vertical trenches in unsaturated soils 土水特征曲线对非饱和土中无支立沟安全高度和立沟时间的影响
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2022-08-26 DOI: 10.1080/19386362.2022.2114666
M. Bajestani, W. Oh
{"title":"Influence of soil-water characteristic curve on the safe height and stand-up time of unsupported vertical trenches in unsaturated soils","authors":"M. Bajestani, W. Oh","doi":"10.1080/19386362.2022.2114666","DOIUrl":"https://doi.org/10.1080/19386362.2022.2114666","url":null,"abstract":"ABSTRACT Geotechnical projects are typically initiated with an unsupported vertical trench (UVT) in unsaturated soils. In this case, it is fundamental to consider the contribution of soil suction toward the shear strength and hydraulic conductivity of soils when analyzing the stability of UVTs. The soil–water characteristic curve (SWCC) is a vital tool for estimating the variations of shear strength and hydraulic conductivity of soils with soil suction. In this study, numerical analyses were conducted to investigate the influence of SWCC on the safe height and stand-up time of UVTs in sandy and glacial till materials. SWCCs were established using three SWCC fitting models based on experimental data. The analysis results demonstrate that it is essential to understand the critical differences between the SWCCs obtained using different fitting models and their influence on the safe height and stand-up time of UVTs, rather than simply comparing the estimates.","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"16 1","pages":"1179 - 1190"},"PeriodicalIF":1.9,"publicationDate":"2022-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46046141","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
The effect of freeze and thaw cycles on the dynamic properties of fine-grained soil stabilized with nanocement 冻融循环对纳米胶结剂稳定细粒土动力特性的影响
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2022-08-21 DOI: 10.1080/19386362.2022.2106678
A. Yousefi, E. Aliaghaei, A. Kalhor, H. Jahanian, M. Azadi
{"title":"The effect of freeze and thaw cycles on the dynamic properties of fine-grained soil stabilized with nanocement","authors":"A. Yousefi, E. Aliaghaei, A. Kalhor, H. Jahanian, M. Azadi","doi":"10.1080/19386362.2022.2106678","DOIUrl":"https://doi.org/10.1080/19386362.2022.2106678","url":null,"abstract":"ABSTRACT The development of freeze and thaw cycles causes heaps of injury to geotechnical structures, particularly roads, every year. In the present study, the effect of adding nanocement to improve the dynamic behaviour of clay under freeze-thaw cycles has been investigated. For this purpose, nanocement was mixed with clay from 1% to 4% according to the dry weight of the soil. Cylindrical samples of natural soil and soil stabilized with nanocement were prepared and cured up to 28 days. Then, dynamic triaxial experiments were performed on unstabilized samples and stabilized ones with 1, 2, 3, and 4% nanocement. The result shows the addition of nanocement increased the shear modulus and decreased the damping ratio. The highest increase in shear modulus was observed in the sample containing 4% nanocement approximately three times compared pure samples. Also, the shear modulus is reduced due to F-T cycles.","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"16 1","pages":"1221 - 1233"},"PeriodicalIF":1.9,"publicationDate":"2022-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43700264","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
Laboratory investigation of modified subgrade clay soil mix with steel slag and lime using static and dynamic test approach 钢渣石灰改性路基粘土混合料的室内静、动试验研究
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2022-07-13 DOI: 10.1080/19386362.2022.2089443
Vinod Kumar Adigopula, Chandra Bogi Reddy, A. Garg, R. Kumar, G. Ramana
{"title":"Laboratory investigation of modified subgrade clay soil mix with steel slag and lime using static and dynamic test approach","authors":"Vinod Kumar Adigopula, Chandra Bogi Reddy, A. Garg, R. Kumar, G. Ramana","doi":"10.1080/19386362.2022.2089443","DOIUrl":"https://doi.org/10.1080/19386362.2022.2089443","url":null,"abstract":"ABSTRACT An experimental laboratory program was conducted to understand the feasibility of steel slag and lime in the subgrade layer. The test was conducted on natural clay soil, lime, lime + steel slag stabilized cohesive subgrade soil. The lime portions were 2%, 4% and 6%, respectively. Similarly, steel slag was added to 20%, 25% and 30%, respectively, by the mass of dry soil. The strength of lime soil and lime + steel slag + soil increases with increasing curing period. The 7-day unconfined compressive strength (UCS) 2% lime soil and soil+20% steel slag + 2% lime is 3.20 MPa and 3.87 MPa, respectively. Eventually, this study supports the use of steel slag and lime in the construction of subgrade stabilization. Therefore, it is found that a lightweight deflectometer can be used as a quick strength evaluating tool on modified subgrade soil in the laboratory.","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"16 1","pages":"1211 - 1220"},"PeriodicalIF":1.9,"publicationDate":"2022-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49013261","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
Performance of T-Shaped and conventional Cement-Soil deep mixing piles to stabilize soft base of High-Speed trains T型和常规水泥土深层搅拌桩稳定高速列车软基的性能
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2022-07-05 DOI: 10.1080/19386362.2022.2096324
Mehdi Sedighi Moghadam, A. Zad, M. Yazdi, Matin Jalali Moghadam
{"title":"Performance of T-Shaped and conventional Cement-Soil deep mixing piles to stabilize soft base of High-Speed trains","authors":"Mehdi Sedighi Moghadam, A. Zad, M. Yazdi, Matin Jalali Moghadam","doi":"10.1080/19386362.2022.2096324","DOIUrl":"https://doi.org/10.1080/19386362.2022.2096324","url":null,"abstract":"ABSTRACT The dramatic increase in train speeds has made settlement control in the train bed a critical issue. High differential settlements on railway tracks, especially high-speed trains, can derail trains and cause irreparable financial and human losses. Deep Cement Mixing (DCM) piles are among the efficient methods to control the train path’s settlement, especially paths on soft clay soils . Recently, T-shaped cement soil mixing (TDM) piles became more popular than a single DCM pile. In this study, total and differential settlements along the path of a high-speed train on a loose bed reinforced with DCM and TDM piles were studied using PLAXIS 3D software. . Three different configuration patterns of the pile were investigated to determine the performance of DCM and TDM piles. Unlike the DCM piles, no differential settlements were captured in the TDM piles with a distance of 60, 120, and 180 cm between the piles.","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"16 1","pages":"1253 - 1267"},"PeriodicalIF":1.9,"publicationDate":"2022-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41566125","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
Creep settlement analysis of pile foundations using viscoelastic model by incorporating nonlinear soil behaviour 结合非线性土体特性的粘弹性桩基础蠕变沉降分析
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2022-06-23 DOI: 10.1080/19386362.2022.2090695
Anumita Mishra, N. Patra
{"title":"Creep settlement analysis of pile foundations using viscoelastic model by incorporating nonlinear soil behaviour","authors":"Anumita Mishra, N. Patra","doi":"10.1080/19386362.2022.2090695","DOIUrl":"https://doi.org/10.1080/19386362.2022.2090695","url":null,"abstract":"ABSTRACT This study utilizes a nonlinear three-parameter viscoelastic model (a nonlinear spring in series with a Kelvin-Voigt element) to study the time-dependent creep behaviour in a single pile and group of piles. The method is based on modified Mindlin’s approach; and Laplace transforms have been utilized to simplify the viscoelastic problem into an equivalent elastic problem. The soil nonlinearity has been modelled by using a hyperbolic stress-strain relationship. The effects of parameters such as pile spacing, slenderness ratio and pile load factor on shear stress distribution, displacement of pile elements relative to the pile head, effects of enlargement of the pile base and interaction factors have been evaluated. The ratio of interaction factor for immediate and creep settlement is in the range of 0.4−0.9 for various pile groups. Since this study incorporates soil nonlinearity, the interaction factors increase by about 6%−10% when the pile load factor increases from 0.5 to 1.","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"16 1","pages":"1234 - 1252"},"PeriodicalIF":1.9,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44473761","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
Probabilistic slope stability assessment of laterite borrow pit using artificial neural network 红土取土场边坡稳定性的人工神经网络概率评估
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2022-06-20 DOI: 10.1080/19386362.2022.2090697
M. A. Idris
{"title":"Probabilistic slope stability assessment of laterite borrow pit using artificial neural network","authors":"M. A. Idris","doi":"10.1080/19386362.2022.2090697","DOIUrl":"https://doi.org/10.1080/19386362.2022.2090697","url":null,"abstract":"ABSTRACT Assessment of slope stability of abandoned laterite borrow pits in residential areas is highly desirable as the consequence of its failure could be fatal. This study applied artificial neural network (ANN) to conduct probabilistic slope stability assessments of the borrow pits. To determine the corresponding factor of safety (FOS), random shear strength parameters, slope geometry, structure load on the slope and structure distance from the slope crest were used as inputs in finite-difference numerical simulations. The FOS was combined with ANN techniques to derive a mathematical model for predicting the failure probability. The effects of variability of soil shear strength parameters and cross-correlation between the parameters on the probability of slope failure were examined. Results showed that the performance level of the pit slopes was hazardous. Variability in shear strength parameters significantly influenced the slope stability, while negative correlation coefficients between the parameters reduced the probability of the slope failure.","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"16 1","pages":"1152 - 1164"},"PeriodicalIF":1.9,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49630278","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
Vibration isolation of machine foundations by topology optimization of wave barriers 基于波障拓扑优化的机械基础隔振
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2022-05-26 DOI: 10.1080/19386362.2022.2080946
Mohammad Eskandarighadi, F. Yarmohammadi, R. Rafiee-Dehkharghani
{"title":"Vibration isolation of machine foundations by topology optimization of wave barriers","authors":"Mohammad Eskandarighadi, F. Yarmohammadi, R. Rafiee-Dehkharghani","doi":"10.1080/19386362.2022.2080946","DOIUrl":"https://doi.org/10.1080/19386362.2022.2080946","url":null,"abstract":"ABSTRACT Vibrations generated from rotary machines can cause problems to the nearby buildings and their residents. Screening the generated waves using barriers is a common solution for mitigating these vibrations. This paper presents a coupled finite element-genetic algorithm methodology to study the efficiency of scattered barriers to alleviate the surface vibrations of machine foundations by focusing on their installation pattern. Additionally, the effect of other parameters including loading frequency of the machine, barrier material, soil layering, and so on is also investigated. The efficacy of these barriers is also compared to the vertical concrete walls, which are easier to be placed in the soil. The results of the analyses showed that using a soft material for the barrier instead of concrete can double the mitigation capacity of the system. Additionally, passive isolation was shown to be the best approach with up to about 27% and 28% vibration reduction in homogeneous and layered soil profiles, respectively. Furthermore, by proper placement, scattered barriers can reduce the vibrations by more than twice as much as the vertical columns. Finally, the optimal pattern at higher frequencies (i.e. 51–60 Hz) was shown to be 10 times as effective as the one at lower frequencies (i.e. 1–10 Hz).","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"159 s1","pages":"1000 - 1012"},"PeriodicalIF":1.9,"publicationDate":"2022-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41259157","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
Finite element evaluation of bearing capacity factors for cutting face of open caissons 开式沉箱切割面承载力因素的有限元评价
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2022-05-26 DOI: 10.1080/19386362.2022.2080962
J. Chavda, G. Dodagoudar
{"title":"Finite element evaluation of bearing capacity factors for cutting face of open caissons","authors":"J. Chavda, G. Dodagoudar","doi":"10.1080/19386362.2022.2080962","DOIUrl":"https://doi.org/10.1080/19386362.2022.2080962","url":null,"abstract":"ABSTRACT Open caissons are massive foundations sunk to the required depth by excavating the soil in contact with the cutting edge of the caisson through the annular space of the shaft. The sinking of caisson initiates when the soil in contact with the cutting edge fails in bearing. The evaluation of bearing capacity of the cutting edge helps in proper planning of the excavation strategy, analysis and design of caissons. In the present study, the bearing capacity factors for the cutting face of open caisson are evaluated using finite element method for different configurations of the cutting edge, properties of the soil and depth of sinking. The cutting edge with varying radii ratio (ri /ro = 0.35 to 0.95) and different cutting angles (β = 30° and 45°) is considered. The Mohr–Coulomb model with non-associated flow rule is used in the two-dimensional finite element (FE) analysis. The bearing capacity factors for the cutting face of the open caisson are evaluated for different friction angles of the soil (ϕ = 5° to 35°). The depth of sinking is accounted for in the FE analysis by considering the soil present above the base of the cutting edge as surcharge. The present FE results are compared with the results available in the literature and presented in the form of ready-to-use charts and tables for design purposes.","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"16 1","pages":"951 - 961"},"PeriodicalIF":1.9,"publicationDate":"2022-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42251220","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: 4
Performance of MSE walls with sustainable backfills subjected to differential settlements 具有可持续回填体的MSE墙在不同沉降下的性能
IF 1.9
International Journal of Geotechnical Engineering Pub Date : 2022-05-02 DOI: 10.1080/19386362.2022.2065954
Divya P.V, V. S.
{"title":"Performance of MSE walls with sustainable backfills subjected to differential settlements","authors":"Divya P.V, V. S.","doi":"10.1080/19386362.2022.2065954","DOIUrl":"https://doi.org/10.1080/19386362.2022.2065954","url":null,"abstract":"ABSTRACT The scarcity and fast depletion of granular materials necessitated to find alternative backfill materials in MSE walls. In the present study, application of construction and demolition waste (CDW) as a backfill for MSE walls was investigated. The physical, chemical, hydraulic and mechanical properties of CDW were found to meet the requirements of ideal backfills mandated by various design standards of MSE walls. At the end of construction, maximum facing deformation was at lower one-third height of the wall for MSE wall resting on a firm foundation. Influence of yielding foundation on the performance of MSE wall was also studied by varying the distortion levels to 0.2, 0.4 and 0.6. At the onset of differential settlements, the location of maximum facing deformation changed to the bottom of the wall. The maximum facing deformation and axial strain increased by 15 times and 2.5% respectively, when the wall underwent a distortion of 0.6.","PeriodicalId":47238,"journal":{"name":"International Journal of Geotechnical Engineering","volume":"16 1","pages":"1116 - 1131"},"PeriodicalIF":1.9,"publicationDate":"2022-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42873768","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信
小红书