Journal of Rock Mechanics and Geotechnical Engineering最新文献

{"title":"Lateral earth pressure of granular backfills on retaining walls with expanded polystyrene geofoam inclusions under limited surcharge loading","authors":"Kewei Fan, Guangqing Yang, Weilie Zou, Zhong Han, Yang Shen","doi":"10.1016/j.jrmge.2023.11.005","DOIUrl":"https://doi.org/10.1016/j.jrmge.2023.11.005","url":null,"abstract":"","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":"119 40","pages":""},"PeriodicalIF":7.3,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138608098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soil disturbance evaluation of soft clay based on stress-normalized small-strain stiffness","authors":"Yanguo Zhou, Yu Tian, Junneng Ye, X. Bian, Yunmin Chen","doi":"10.1016/j.jrmge.2023.08.019","DOIUrl":"https://doi.org/10.1016/j.jrmge.2023.08.019","url":null,"abstract":"","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":" 12","pages":""},"PeriodicalIF":7.3,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138612968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamic thermo-mechanical responses of road-soft ground system under vehicle load and daily temperature variation","authors":"Chuxuan Tang, Jie Liu, Zheng Lu, Yang Zhao, Jing Zhang, Yinuo Feng","doi":"10.1016/j.jrmge.2023.07.023","DOIUrl":"https://doi.org/10.1016/j.jrmge.2023.07.023","url":null,"abstract":"","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":" 5","pages":""},"PeriodicalIF":7.3,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138615822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Field test of high-power microwave-assisted mechanical excavation for deep hard iron ore","authors":"F. Lin, Xia-Ting Feng, Shi-ping Li, Xiao Hai, Jiu-yu Zhang, Xiang-xin Su, T. Tong, Jianchun Song","doi":"10.1016/j.jrmge.2023.09.012","DOIUrl":"https://doi.org/10.1016/j.jrmge.2023.09.012","url":null,"abstract":"","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":" 33","pages":""},"PeriodicalIF":7.3,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138616179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The formation of orthogonal joint systems and cuboidal blocks: New insights gained from flat-lying limestone beds in the region of Havre-Saint-Pierre (Quebec, Canada)","authors":"Shaocheng Ji ,&nbsp;Yvéric Rousseau ,&nbsp;Denis Marcotte ,&nbsp;Noah John Phillips","doi":"10.1016/j.jrmge.2023.03.012","DOIUrl":"10.1016/j.jrmge.2023.03.012","url":null,"abstract":"<div><p>Vertical orthogonal joints are a common feature in shallow crustal rocks. There are several competing theories for their formation despite the ubiquity. We examined the exceptional exposures of orthogonal joints in flat-lying Ordovician limestone beds from the Havre-Saint-Pierre Region in Quebec, Canada (north shore of Saint-Lawrence River) to test conceptual models of joint formation in a natural setting. In the region, the spacing of cross-joints is consistently larger than the spacing of systematic joints by a factor of 1.5 approximately. The joint-spacing-to-bed-thickness ratios (<em>s</em>/<em>t</em>) are much larger in these beds (<em>s</em>/<em>t</em> = 4.3 for systematic joints, and 6.4 for cross-joints) than those in higher strained strata along the south shore of the Saint-Lawrence River (<em>s</em>/<em>t</em> = 1), highlighting the effect of tectonic strain in decreasing fracture spacing and block size. The high values of <em>s</em>/<em>t</em> indicate that cross-joint formation was unlikely caused by a switch from compression to tension once a critical <em>s</em>/<em>t</em> ratio for systematic joints was reached (as hypothesized in previous studies). We proposed a new model for the formation of orthogonal joint systems where the principal stress axes locally switch during the formation of systematic fractures. The presence of ladder-shaped orthogonal joints suggests a state of effective stress with <em>σ</em>₁∗≫0 &gt; <em>σ</em>₂∗&gt;<em>σ</em>₃∗ and where <em>σ</em>₂∗-<em>σ</em>₃∗ is within the range of fracture strength variability at the time of fracture. This research provides a new mechanical model for the formation of orthogonal joint systems and cuboidal blocks.</p></div>","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":"15 12","pages":"Pages 3079-3093"},"PeriodicalIF":7.3,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1674775523001154/pdfft?md5=328601e28b1c8b3e4662ab23dce6aec0&pid=1-s2.0-S1674775523001154-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45618021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"3D limit analysis of rock slopes based on equivalent linear failure criterion with tension cut-off","authors":"Zhibin Sun ,&nbsp;Bowen Wang ,&nbsp;Yongxin Li ,&nbsp;Jingshu Xu ,&nbsp;Jian Ji","doi":"10.1016/j.jrmge.2023.02.009","DOIUrl":"10.1016/j.jrmge.2023.02.009","url":null,"abstract":"<div><p>Hoek-Brown (HB) failure criterion is widely used to predict the strength of intact or heavily jointed rock mass. For stability analysis of rock slopes governed by the HB failure criterion, the equivalent linearity to Mohr-Coulomb (MC) criterion is often adopted, leading to the well-known equivalent Mohr-Coulomb method (EMCM). Existing studies on EMCM analysis mainly consider the shear strength of rock material, while consideration of the tensile strength is rare. This contradicts the fact that the underlying tensile strength of rock mass has considerable impact on the rock slope stability in real world. In this regard, this paper proposes a limit analysis-based approach that can account for tension in the three-dimensional (3D) stability analysis of HB rock slope. This approach is established on the equivalent linearity of the HB criterion with consideration of tensile strength, known as the equivalent tension cut-off MC method (ETMCM), and using a horn-like 3D mechanism of limit analysis. The safety factor solutions given by the proposed approach are validated by previous studies and numerical results. Parametric studies are conducted to investigate the effect of rock tensile strength on slope stability. Results show that the consideration of tension leads to a more conservative safety factor and a sharper curvature of the failure surface, and these impacts tend to be more obvious with the increases in slope inclination and slope width. Finally, the stability of the HB rock slope under seepage conditions is studied using the proposed approach. The results indicate that the effect of tensile strength is highly remarkable in seepage circumstances.</p></div>","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":"15 12","pages":"Pages 3118-3130"},"PeriodicalIF":7.3,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1674775523000677/pdfft?md5=ca6ca488c823f3bccb262425b66e0c2e&pid=1-s2.0-S1674775523000677-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48227020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Slope stability of reclaimed coal mines through a new water filling index","authors":"A. Mikroutsikos, A. Theocharis, N. Koukouzas, I. Zevgolis","doi":"10.1016/j.jrmge.2023.08.022","DOIUrl":"https://doi.org/10.1016/j.jrmge.2023.08.022","url":null,"abstract":"","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":"106 ","pages":""},"PeriodicalIF":7.3,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139017568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Predicting dynamic compressive strength of frozen-thawed rocks by characteristic impedance and data-driven methods","authors":"Shengtao Zhou, Zong-Xian Zhang, Xuedong Luo, Yifan Huang, Zhi Yu, Xiaowei Yang","doi":"10.1016/j.jrmge.2023.09.017","DOIUrl":"https://doi.org/10.1016/j.jrmge.2023.09.017","url":null,"abstract":"","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":"158 ","pages":""},"PeriodicalIF":7.3,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139023717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An approach for determination of lateral limit angle in kinematic planar sliding analysis for rock slopes","authors":"Xiaojuan Yang, Jie Hu, Honglei Sun, Jun Zheng","doi":"10.1016/j.jrmge.2023.09.013","DOIUrl":"https://doi.org/10.1016/j.jrmge.2023.09.013","url":null,"abstract":"","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":"109 ","pages":""},"PeriodicalIF":7.3,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139026382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An open-end high-power microwave-induced fracturing system for hard rock","authors":"Xia-Ting Feng,&nbsp;Jiuyu Zhang,&nbsp;Feng Lin,&nbsp;Chengxiang Yang,&nbsp;Shiping Li,&nbsp;Tianyang Tong,&nbsp;Xiangxin Su","doi":"10.1016/j.jrmge.2023.09.002","DOIUrl":"10.1016/j.jrmge.2023.09.002","url":null,"abstract":"<div><p>Microwave pre-treatment is considered as a promising technique for alleviating cutter wear. This paper introduces a high-power microwave-induced fracturing system for hard rock. The test system consists of a high-power microwave subsystem (100 kW), a true triaxial testing machine, a dynamic monitoring subsystem, and an electromagnetic shielding subsystem. It can realize rapid microwave-induced fracturing, intelligent tuning of impedance, dynamic feedback under strong microwave fields, and active control of microwave parameters by addressing the following issues: the instability and insecurity of the system, the discharge breakdown between coaxial lines during high-power microwave output, and a lack of feedback of rock-microwave response. In this study, microwave-induced surface and borehole fracturing tests under true triaxial stress were carried out. Experimental comparisons imply that high-power microwave irradiation can reduce the fracturing time of hard rock and that the fracture range (160 mm) of a 915-MHz microwave source is about three times that of 2.45 GHz. After microwave-induced borehole fracturing, many tensile cracks occur on the rock surface and in the borehole: the maximum reduction of the P-wave velocity is 12.8%. The test results show that a high-power microwave source of 915 MHz is more conducive to assisting mechanical rock breaking and destressing. The system can promote the development of microwave-assisted rock breaking equipment.</p></div>","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":"15 12","pages":"Pages 3163-3172"},"PeriodicalIF":7.3,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1674775523002494/pdfft?md5=87df3827ec3c93f0a41b0a8f98ccca51&pid=1-s2.0-S1674775523002494-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136115845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}