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Improved general slice method of limit equilibrium for slope stability analysis 边坡稳定分析中极限平衡的改进一般切片法
IF 0.6 4区 工程技术
Acta Geotechnica Slovenica Pub Date : 2021-01-01 DOI: 10.18690/actageotechslov.18.1.55-64.2021
Shiguo Xiao, Tingjun Chen
{"title":"Improved general slice method of limit equilibrium for slope stability analysis","authors":"Shiguo Xiao, Tingjun Chen","doi":"10.18690/actageotechslov.18.1.55-64.2021","DOIUrl":"https://doi.org/10.18690/actageotechslov.18.1.55-64.2021","url":null,"abstract":"For traditional slice methods of limit equilibrium used to analyze slope stability, some hypothetical conditions on interslice force are generally introduced to solve the problem. In order to reduce the defect theoretically due to the related hypothesis, more rigorous constraints of interslice force are completely considered in light of static equilibrium conditions and energy dissipation principle of the interface between two adjacent slices. Without hypothesis of interslice force, the slope stability analysis is transformed consistently into a non-linear programming problem to be solved. So, a generally improved solution of slice method of limit equilibrium to slope stability is put forward. In particular, influence of the dilation angle of soil on slope stability can be involved in the method. The proposed method can be utilized for any slopes with arbitrary slip surfaces.","PeriodicalId":50897,"journal":{"name":"Acta Geotechnica Slovenica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67766707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Experimental investigation of the mechanical properties of mudstone in southwestern China 西南地区泥岩力学特性试验研究
IF 0.6 4区 工程技术
Acta Geotechnica Slovenica Pub Date : 2021-01-01 DOI: 10.18690/actageotechslov.18.2.2-14.2022
Qijian Zhou, R. Deng, L. Zheng, Quanbing Zhu, Q. Xie, X. Xue
{"title":"Experimental investigation of the mechanical properties of mudstone in southwestern China","authors":"Qijian Zhou, R. Deng, L. Zheng, Quanbing Zhu, Q. Xie, X. Xue","doi":"10.18690/actageotechslov.18.2.2-14.2022","DOIUrl":"https://doi.org/10.18690/actageotechslov.18.2.2-14.2022","url":null,"abstract":"In this paper the mechanical properties of mudstone with different immersion durations (e.g., immersion in water for 0, 7 and 14 days), at different temperatures (20, 35 and 50 °C) and in different confining pressures (0.6 and 1.2 MPa) were investigated using uniaxial compression tests, conventional triaxial compression tests and scanning electron microscopy. The test results indicate that in the temperature range from 20 °C to 50 °C the water content can significantly reduce the mechanical parameters, including the strength and elastic modulus of the mudstone samples. In contrast, the Poisson ratio of the mudstone samples increases with the increase in the water content. In addition, there is little difference between the effects of an immersion time of 7 days and 14 days on the mudstone samples, indicating that the confining pressure plays a protective role on the mudstone samples.","PeriodicalId":50897,"journal":{"name":"Acta Geotechnica Slovenica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67767158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integration of measurement techniques in monitoring of the Laze landslide in Slovenia 测量技术在斯洛文尼亚拉泽滑坡监测中的整合
IF 0.6 4区 工程技术
Acta Geotechnica Slovenica Pub Date : 2020-06-01 DOI: 10.18690/actageotechslov.17.1.33-45.2020
A. Lazar, d.o.o. Litijska cesta Ljubljana Slovenia Geoservis, T. Beguš, M. Vulić, d.o.o. Dimičeva ulica Ljubljana Slovenia Geotrias
{"title":"Integration of measurement techniques in monitoring of the Laze landslide in Slovenia","authors":"A. Lazar, d.o.o. Litijska cesta Ljubljana Slovenia Geoservis, T. Beguš, M. Vulić, d.o.o. Dimičeva ulica Ljubljana Slovenia Geotrias","doi":"10.18690/actageotechslov.17.1.33-45.2020","DOIUrl":"https://doi.org/10.18690/actageotechslov.17.1.33-45.2020","url":null,"abstract":"","PeriodicalId":50897,"journal":{"name":"Acta Geotechnica Slovenica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44017558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Observation of extensive mass movements in the Lipica II quarry with an EL beam displacement sensor 用EL梁位移传感器观察Lipica II采石场大规模的质量运动
IF 0.6 4区 工程技术
Acta Geotechnica Slovenica Pub Date : 2020-06-01 DOI: 10.18690/actageotechslov.17.1.23-32.2020
D. Stupar, A. Kos, M. Vulić, Slovenia Marmor Sežana d.d Sežana
{"title":"Observation of extensive mass movements in the Lipica II quarry with an EL beam displacement sensor","authors":"D. Stupar, A. Kos, M. Vulić, Slovenia Marmor Sežana d.d Sežana","doi":"10.18690/actageotechslov.17.1.23-32.2020","DOIUrl":"https://doi.org/10.18690/actageotechslov.17.1.23-32.2020","url":null,"abstract":"It is not only that humans are playing with the environment, giving the quarry a bad external image, nature also returns a blow into the internal mass movements by decreasing the safety parameters of the room-and-pillar excavation. This paper presents the analytical methods used to observe the individual parameters in the context of monitoring the safety pillars and the deformation of the discontinuities in the underground excavation in the Lipica II natural stone mine. To monitor movements and deformations, the EL-beam gauges are installed on the surface of the safety pillars. The observations used in this case study are represented by two vertical EL-beam displacement measurements, acting as one year-long time series. Using ARMA modelling, we analysed the differences between the measured and predicted values of El-beam displacements. The obtained predictions of the displacements, their negligible effect on the measurements themselves, and the absence of any trends in the calculated differences, proves the feasibility of the applied prediction model. A longer observation period would allow predictions of possible seasonal characteristics of the time series, while the development of the automatic responding monitoring system, triggered by the warning events, will improve the reporting system for the sudden changes in the smoothness of the predicted values. Danijela Ignjatović Stupar International Space University 67400 Illkirch-Graffenstaden, France E-mail: danijela.stupar@isunet.edu Andrej Kos","PeriodicalId":50897,"journal":{"name":"Acta Geotechnica Slovenica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48031230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mud-pump pressure in geothermal wells 地热井中的泥浆泵压力
IF 0.6 4区 工程技术
Acta Geotechnica Slovenica Pub Date : 2020-06-01 DOI: 10.18690/actageotechslov.17.1.2-11.2020
B. Janc, Ž. Vukelič
{"title":"Mud-pump pressure in geothermal wells","authors":"B. Janc, Ž. Vukelič","doi":"10.18690/actageotechslov.17.1.2-11.2020","DOIUrl":"https://doi.org/10.18690/actageotechslov.17.1.2-11.2020","url":null,"abstract":"","PeriodicalId":50897,"journal":{"name":"Acta Geotechnica Slovenica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46670065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Load-settlement and load-sharing behaviour of a piled raft foundation resting on layered soils 层状地基上桩筏基础的荷载沉降和荷载分担特性
IF 0.6 4区 工程技术
Acta Geotechnica Slovenica Pub Date : 2020-06-01 DOI: 10.18690/actageotechslov.17.1.71-86.2020
Plaban Deb, S. Pal
{"title":"Load-settlement and load-sharing behaviour of a piled raft foundation resting on layered soils","authors":"Plaban Deb, S. Pal","doi":"10.18690/actageotechslov.17.1.71-86.2020","DOIUrl":"https://doi.org/10.18690/actageotechslov.17.1.71-86.2020","url":null,"abstract":"","PeriodicalId":50897,"journal":{"name":"Acta Geotechnica Slovenica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49491203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Modeling and analysis of digital surface models using high-resolution UAV images 基于高分辨率无人机图像的数字地面模型建模与分析
IF 0.6 4区 工程技术
Acta Geotechnica Slovenica Pub Date : 2020-06-01 DOI: 10.18690/actageotechslov.17.1.46-55.2020
Andrej Pal, Ljubljana Slovenia Environment Aškerčeva, Mirko Borisov, M. Vulić, Ljubljana Slovenia Environment Aškerčeva cesta
{"title":"Modeling and analysis of digital surface models using high-resolution UAV images","authors":"Andrej Pal, Ljubljana Slovenia Environment Aškerčeva, Mirko Borisov, M. Vulić, Ljubljana Slovenia Environment Aškerčeva cesta","doi":"10.18690/actageotechslov.17.1.46-55.2020","DOIUrl":"https://doi.org/10.18690/actageotechslov.17.1.46-55.2020","url":null,"abstract":"","PeriodicalId":50897,"journal":{"name":"Acta Geotechnica Slovenica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47497941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Experimental investigation of the influence of relative effective diameter on the ultimate shear strength of partially saturated granular soils 相对有效直径对部分饱和颗粒土极限抗剪强度影响的试验研究
IF 0.6 4区 工程技术
Acta Geotechnica Slovenica Pub Date : 2020-06-01 DOI: 10.18690/actageotechslov.17.1.56-70.2020
Khayreddine Doumi, M. Belkhatir, A. C. Taiba, Y. Mahmoudi, W. Baille
{"title":"Experimental investigation of the influence of relative effective diameter on the ultimate shear strength of partially saturated granular soils","authors":"Khayreddine Doumi, M. Belkhatir, A. C. Taiba, Y. Mahmoudi, W. Baille","doi":"10.18690/actageotechslov.17.1.56-70.2020","DOIUrl":"https://doi.org/10.18690/actageotechslov.17.1.56-70.2020","url":null,"abstract":"","PeriodicalId":50897,"journal":{"name":"Acta Geotechnica Slovenica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47059068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Numerical investigation of the influence of spatial effects and supporting structures during pit excavation 基坑开挖过程中空间效应及支护结构影响的数值研究
IF 0.6 4区 工程技术
Acta Geotechnica Slovenica Pub Date : 2020-06-01 DOI: 10.18690/actageotechslov.17.1.87-96.2020
Ping Li, Junjun Chen, Yaru Lv, Zhiyuan Wang, Xiaojin Chen, China Materials Nanjing, Nanjing Water Planning
{"title":"Numerical investigation of the influence of spatial effects and supporting structures during pit excavation","authors":"Ping Li, Junjun Chen, Yaru Lv, Zhiyuan Wang, Xiaojin Chen, China Materials Nanjing, Nanjing Water Planning","doi":"10.18690/actageotechslov.17.1.87-96.2020","DOIUrl":"https://doi.org/10.18690/actageotechslov.17.1.87-96.2020","url":null,"abstract":"This paper reports on a field test in Nanjing, China, performed to investigate the effects of excavation on shallow-buried pipelines by monitoring and analyzing the displacements of these pipelines. A parametric study is also carried out using the finite-element program ABAQUS to investigate the influence of the spatial effects of the pit excavation and the supporting-structure combination forms. The numerical simulations are verified by the field test. The results show that the first excavating area, which is farther from the existing buried pipeline, causes smaller displacements of the pipeline. When the slope angle of the existing bored piles increases from 0° to 15°, the maximum horizontal and vertical displacements decrease by 4.92 mm and 2.49 mm, respectively. Both the maximum horizontal and vertical displacements decrease by over 20% when the front row pile length is increased by 50%. An increase in the slope angle or the front row Ping Li","PeriodicalId":50897,"journal":{"name":"Acta Geotechnica Slovenica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45696175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Mechanical properties and constitutive model for artificially structured soils with an initial stress-induced anisotropy 具有初始应力诱导各向异性的人工结构土的力学特性和本构模型
IF 0.6 4区 工程技术
Acta Geotechnica Slovenica Pub Date : 2020-01-01 DOI: 10.18690/ACTAGEOTECHSLOV.17.2.46-55.2020
Chuan He, E. Liu, Qingke Nie
{"title":"Mechanical properties and constitutive model for artificially structured soils with an initial stress-induced anisotropy","authors":"Chuan He, E. Liu, Qingke Nie","doi":"10.18690/ACTAGEOTECHSLOV.17.2.46-55.2020","DOIUrl":"https://doi.org/10.18690/ACTAGEOTECHSLOV.17.2.46-55.2020","url":null,"abstract":"A series of triaxial compression tests was performed on artificially structured soil samples with an initial stress- -induced anisotropy at confining pressures of 25, 37.5, 50, 100, 200, and 400 kPa. Based on the results of these tests, a constitutive model for structured soils with initial stress-induced anisotropy was formulated. In the proposed model, the initially anisotropic structured soils are regarded as heterogeneous materials composed of bonded blocks and weaker bands. The bonded blocks (denoted as bonded elements) are described as transversely isotropic elastic– brittle materials, while the weaker bands (denoted as frictional elements) are described by the Lade–Duncan model of elastic–plastic materials. Based on the homogenization theorem for heterogeneous materials, and the introduction of structural parameters such as the breakage ratio and the local strain coefficient, the non-uniform distribution of stress and strain within a representative volume element was obtained. Finally, the parameters of the model were determined based on experimental results. The model was verified with test results, demonstrating that it can effectively capture many important features of artificially structured soils with an initial stress-induced anisotropy.","PeriodicalId":50897,"journal":{"name":"Acta Geotechnica Slovenica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67766469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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