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岩石力学与岩土工程学报（英文版）
岩石力学与岩土工程学报（英文版）

钱七虎

季刊

1674-7755

rockgeotech@whrsm.ac.cn

027-87198182

430071

湖北省武汉市武昌区水果湖街小洪山2号

岩石力学与岩土工程学报（英文版）/Journal Journal of Rock Mechanics and Geotechnical EngineeringCSCDCSTPCD北大核心SCI
查看更多>>反映世界范围内，特别是中国岩石力学与工程的新成就、新理论、新方法、新经验、新动向，促进国内外学术交流，特别欢迎国家重大项目、国家自然科学基金项目及其他重要项目的研究成果，倡导和鼓励有实践经验的作者撰稿，并优先刊用这些稿件，本刊也发表少数侧重于工程应用的土力学方面的文章。为尽快交流最新的学术信息，本刊还发表短文和讨论文章、近期博士学位论文摘要、会议简讯、新书简介与相关的学术动态等；提倡撰写简短的讨论文章，活跃期刊学术氛围。
正式出版
收录年代

    Stabilisation of estuarine sediments with an alkali-activated cement for deep soil mixing applications

    Claver PinheiroSara RiosAntónio Viana da FonsecaNuno Cristelo...
    1398-1410页
    查看更多>>摘要：In this work,an alternative alkali-activated cement(AAC)made of ladle slag precursor mixed with so-dium hydroxide and sodium silicate has been developed to enhance the bearing capacity of estuarine soils in coastal conditions via deep soil mixing(DSM).The AAC was optimized to use a low reactivity precursor(ladle slag)and to deal with a contaminated high-water content natural sediment cured under water.The material performance was analysed by comparison to a mixture made with Portland cement and cured in the same conditions.Flexural and unconfined compressive strength tests as well as seismic waves measurements after 3-,7-,14-and 28-d curing were performed to obtain a relationship between elastic stiffness and strength with curing time for both mixtures.Remarkably,the AAC mix demonstrated superior strength results,exhibiting almost double flexural and compressive strengths after 28 d compared to the Portland cement mix.The AAC mix also showed a higher rate of stiffness increase than the Portland cement mix,which has a higher initial stiffness at young ages but lower stiffness evolution.Leachate analysis confirmed that the proposed AAC could effectively immobilise any contaminants from soil or precursors.The effect of curing under stress was analysed in triaxial compression tests and found to be insignificant,indicating that laboratory data obtained without stress curing can represent the material's behaviour in a DSM column,which will cure under the weight of the column.
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    An efficient physics-guided Bayesian framework for predicting ground settlement profile during excavations in clay

    Cong TangShuyu HeWanhuan Zhou
    1411-1424页
    查看更多>>摘要：Recently,the application of Bayesian updating to predict excavation-induced deformation has proven successful and improved prediction accuracy significantly.However,updating the ground settlement profile,which is crucial for determining potential damage to nearby infrastructures,has received limited attention.To address this,this paper proposes a physics-guided simplified model combined with a Bayesian updating framework to accurately predict the ground settlement profile.The advantage of this model is that it eliminates the need for complex finite element modeling and makes the updating framework user-friendly.Furthermore,the model is physically interpretable,which can provide valuable references for construction adjustments.The effectiveness of the proposed method is demonstrated through two field case studies,showing that it can yield satisfactory predictions for the settlement profile.
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    At-rest lateral earth pressure of compacted expansive soils:Experimental investigations and prediction approach

    Zhong HanPan ZhangWeilie ZouKewei Fan...
    1425-1435页
    查看更多>>摘要：This paper presents experimental studies on a compacted expansive soil,from Nanyang,China for investigating the at-rest lateral earth pressure σL of expansive soils.The key studies include(i)re-lationships between the σL and the vertical stress σV during soaking and consolidation,(ii)the influences of initial dry density ρd0 and moisture content w0 on the vertical and lateral swelling pressures at no swelling strain(i.e.σv0 and σL0),and(iii)evolution of the σL during five long-term wetting-drying cycles.Experimental results demonstrated that the post-soaking σL-σV relationships are piecewise linear and their slopes in the passive state(σL＞σV)and active state(σL＜σV)are similar to that of the consolidationσL-σv relationships in the normal-and over-consolidated states,respectively.The soaking σL-σV re-lationships converge to the consolidation σL-σV relationships at a threshold σV where the interparticle swelling is restrained.The σL0 and σV0 increase monotonically with ρd0;however,they show increasing-then-decreasing trends with the w0.The extent of compaction-induced swelling anisotropy,which is evaluated by σL0/σv0,reduces with an increase in the compaction energy and molding water content.TheσL reduces over moisture cycles and the stress relaxation in the σL during soaking is observed.An approach was developed to predict the at-rest soaking σL-σV relationships,which requires conventional consolidation and shear strength properties and one measurement of the σL-σV relationships during soaking.The proposed approach was validated using the results of three different expansive soils available in the literature.
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    Effect of the sloping seabed on 3D soil-spudcan interaction using a material point-finite element(MPM-FEM)model

    Zhengda LeiGuangtian ZengHuaihui RenBisheng Wu...
    1436-1454页
    查看更多>>摘要：The sloping seabed affects the bearing capacity and failure mechanism of soil,which may compromise the stability and safety of offshore structures such as jack-up platforms.This paper employs a coupled model combining the material point method and finite element method(MPM-FEM)to analyze the impact of sloping seabeds on the three-dimensional soil-spudcan interaction.The MPM-FEM model implements the(B)approach to solve the challenge of volumetric locking due to the incompressibility constraints imposed by yield criterion.It is validated against the centrifuge results.The effects of sloping seabeds on penetration resistance,soil flow pattern,lateral response,stress distribution,and failure mechanism are discussed.The soil mainly undergoes overall failure when the ratio of penetration depth to spudcan diameter(i.e.Dp/D)is between 0 and 0.25.As the slope angle increases,the soil on the side of lower slope is expelled further,resulting in an asymmetric stress distribution and a larger horizontal sliding force of soil.When Dp/D increases to 0.75,the soil transitions to localized plastic flow failure,and the range of soil flow affected by the spudcan penetration decreases.The results show that,when the slope angle increases,the lateral displacement and stress distribution on the lower slope of a sloping seabed is significantly larger than that of a horizontal seabed,impacting the spudcan and surrounding soil behavior.The study suggests that the seabed slope significantly affects the range of soil flow and failure at shallow penetration,indicating that the slope angle should be taken into account in the design and installation of offshore jack-up rigs,particularly in areas with sloping seabeds.
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    Method of fabricating artificial rock specimens based on extrusion free forming(EFF)3D printing

    Xiaomeng ShiTingbang DengSen LinChunjiang Zou...
    1455-1466页
    查看更多>>摘要：Three-dimensional(3D)printing technology has been widely used to create artificial rock samples in rock mechanics.While 3D printing can create complex fractures,the material still lacks sufficient sim-ilarity to natural rock.Extrusion free forming(EFF)is a 3D printing technique that uses clay as the printing material and cures the specimens through high-temperature sintering.In this study,we attempted to use the EFF technology to fabricate artificial rock specimens.The results show the physico-mechanical properties of the specimens are significantly affected by the sintering temperature,while the nozzle diameter and layer thickness also have a certain impact.The specimens are primarily composed of SiO2,with mineral compositions similar to that of natural rocks.The density,uniaxial compressive strength(UCS),elastic modulus,and tensile strength of the printed specimens fall in the range of 1.65-2.54 g/cm3,16.46-50.49 MPa,2.17-13.35 GPa,and 0.82-17.18 MPa,respectively.It is capable of simulating different types of rocks,especially mudstone,sandstone,limestone,and gneiss.However,the simulation of hard rocks with UCS exceeding 50 MPa still requires validation.
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    A review of in situ carbon mineralization in basalt

    Xiaomin CaoQi LiLiang XuYongsheng Tan...
    1467-1485页
    查看更多>>摘要：Global warming has greatly threatened the human living environment and carbon capture and storage(CCS)technology is recognized as a promising way to reduce carbon emissions.Mineral storage is considered a reliable option for long-term carbon storage.Basalt rich in alkaline earth elements facili-tates rapid and permanent CO2 fixation as carbonates.However,the complex CO2-fluid-basalt interaction poses challenges for assessing carbon storage potential.Under different reaction conditions,the carbonation products and carbonation rates vary.Carbon mineralization reactions also induce petro-physical and mechanical responses,which have potential risks for the long-term injectivity and the carbon storage safety in basalt reservoirs.In this paper,recent advances in carbon mineralization storage in basalt based on laboratory research are comprehensively reviewed.The assessment methods for carbon storage potential are introduced and the carbon trapping mechanisms are investigated with the identification of the controlling factors.Changes in pore structure,permeability and mechanical prop-erties in both static reactions and reactive percolation experiments are also discussed.This study could provide insight into challenges as well as perspectives for future research.
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