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A numerical framework for underground structures in layered ground under inclined P-SV waves using stiffness

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 10-24 doi: 10.1007/s11709-022-0904-3

Abstract: A numerical framework was proposed for the seismic analysis of underground structures in layered groundNumerical results show that SV-waves are more destructive to underground structures than P-waves, andthe responses of underground structures are significantly affected by the incident angles.

Keywords： underground structures     seismic response     stiffness matrix method     domain reduction method     P-SV waves    

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An end-to-end 3d seismic simulation of underground structures due to point dislocation source by using

Zhenning BA; Jisai FU; Zhihui ZHU; Hao ZHONG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 12,   Pages 1515-1529 doi: 10.1007/s11709-022-0887-0

Abstract: of this approach is that it realizes the entire process simulation from point dislocation source to undergroundThis approach can provide an effective solution for seismic analysis of underground structures underTaking Daikai subway station as an example, the seismic response of the underground structure is simulatedIn this example, the influence of velocity structure on the maximum interlayer displacement angle of underground

Keywords： source-to-structure simulation     FK-FEM hybrid approach     underground structures     point dislocation source    

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Effect of strata restraint on seismic performance of prefabricated sidewall joints in fabricated subway stations

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 763-779 doi: 10.1007/s11709-023-0917-6

Abstract: A new method to test the seismic performance of prefabricated specimens for underground assembled structuresis proposed, which can realistically reflect the strata restraint effect on the underground structureAn FE model that can be used to conduct a seismic performance study of prefabricated specimens for undergroundassembled structures is proposed, and its feasibility is verified via comparison with test data.

Keywords： underground structures     precast sidewall specimen     seismic test method     bearing capacity     energy dissipation    

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Dynamic study on anti-collapse design for underground structures subjected to explosion

Yang Liming,Zhou Fenghua,Dong Xinlong,Wang Lili

Strategic Study of CAE 2011, Volume 13, Issue 3,   Pages 29-37

Abstract: explosive loading, a tensile stress wave is a main cause to induce spalling collapse of concrete protective structuresThus, they are not valuable to analysis precisely the protective structures against explosion, so thatstructures subjected to explosive loading are studied.Furthermore, the dynamic mechanism of anti-collapse design of underground structures subjected to explosiveprotective structures subjected to explosive loading.

Keywords： underground protective structure     concrete tensile properties     anti-collapse     stress waves    

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Waterproofing Technology for Underground Fabricated Structure Joints Based on the Open Cut Method

Huang Mingli,Yang Ze,Tan Zhongsheng and Wang Wenzheng

Strategic Study of CAE 2017, Volume 19, Issue 6,   Pages 131-139 doi: 10.15302/J-SSCAE-2017.06.019

Abstract:

Compared with traditional cast-in-place structures, fabricated structuresFabricated structures have been developed rapidly in above-ground buildings.However, the use of underground fabricated structures in China has only recently begun.Owing to the complexity of the underground environment, waterproofing underground fabricated structureengineering structures.

Keywords： prefabricated structures     underground structure joint     epoxy grouting material     prefabricated solidified    

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Early Identification of Abnormal Regions in Rock-Mass Using Traveltime Tomography Article

Longjun Dong,Zhongwei Pei,Xin Xie,Yihan Zhang,Xianhang Yan

Engineering 2023, Volume 22, Issue 3,   Pages 191-200 doi: 10.1016/j.eng.2022.05.016

Abstract:

Early identification of abnormal regions is crucial in preventing the occurrence of underground geotechnicalTo meet the high-accuracy detection requirements of underground engineering, this paper proposes a tomographymethod for abnormal region identification in complex rock-mass structures that utilizes traveltime tomographyexperiments were conducted in the Shaanxi Zhènào mine and achieve the reconstruction of the undergroundidentification using traveltime tomography but also provides new insight into potential hazards detection in underground

Keywords： Underground engineering     Traveltime tomography     Complex structures     Abnormal region identification     Ray    

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Application and development of modern long-span space structures in China

Shilin DONG, Yang ZHAO, Dong XING

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 224-239 doi: 10.1007/s11709-012-0166-6

Abstract: Modern long-span space structures, developed during the 1970s and 1980s, are light and effective structuresThese structures include air-supported membrane structures, cable-membrane structures, cable truss structures, beam string structures, suspen-domes, cable domes, composite structures of cable dome and single-layersteel structures and so forth., modern flexible space structures and modern rigid-flexible combined space structures.

Keywords： modern long-span space structures     rigid space structures     flexible space structures     rigid-flexible combinedspace structures     application and development    

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Practical optimization of deployable and scissor-like structures using a fast GA method

M. SALAR, M. R. GHASEMI, B. DIZANGIAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 557-568 doi: 10.1007/s11709-018-0497-z

Abstract: This paper addresses practical sizing optimization of deployable and scissor-like structures from a newThese structures have been recently highly regarded for beauty, lightweight, determine behavior, properAt this time, there is a few studies done considering practical optimization of these structures.In foldable scissor-like structures, connections have a complex behavior.are not affordable because they need more material than steel structures and cause more environmental

Keywords： optimization     scissor-like structures     deployable structures     genetic algorithm     ABAQUS    

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Effect of / molecular structures on pyrolysis performance and heat sink of decalin isomers

Frontiers of Chemical Science and Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11705-023-2375-z

Abstract: mixtures (denoted as mix-decalin), in order to clarify the effects of the cis-/trans-structuresThis work demonstrates the relationship between the cis/trans structures and the pyrolysis

Keywords： endothermic fuel     decalin     pyrolysis     heat sink     molecular structure    

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A collaborative approach for urban underground space development toward sustainable development goals

Fang-Le PENG, Yong-Kang QIAO, Soheil SABRI, Behnam ATAZADEH, Abbas RAJABIFARD

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1,   Pages 20-45 doi: 10.1007/s11709-021-0716-x

Abstract: The utilization of urban underground space (UUS) offers an effective solution to urban problems but maybetter concerted guidelines to coordinate various urban systems and the multiple components of the undergroundwhich should be viewed as important yardsticks for UUS development, do not explicitly mention urban underground

Keywords： urban underground space     Sustainable Development Goals     spatial data infrastructure     underground land administration    

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Prediction of characteristic blast-induced vibration frequency during underground excavation by using

Tae Un PAK; Guk Rae JO; Un Chol HAN

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 8,   Pages 1029-1039 doi: 10.1007/s11709-022-0861-x

Abstract: In this study, blasting vibration signals were measured during underground excavation in carbonaceous

Keywords： wavelet analysis     blast-induced vibration     frequency characteristics     underground excavation    

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Lateral shear performance of sheathed post-and-beam wooden structures with small panels

Frontiers of Structural and Civil Engineering   Pages 1117-1131 doi: 10.1007/s11709-023-0939-0

Abstract: Sheathed post-and-beam wooden structures are distinct from light-wood structures.coefficients were all greater than 2.5, which satisfied the deformation requirements of residential structuresBased on the test and FE analysis results, the shear strength of the post-and-beam wooden structures

Keywords： post-and-beam wooden structures with sheathed walls     low reversed cyclic loading     bearing capacity     stiffness    

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Reliability-based design optimization of offshore wind turbine support structures using RBF surrogate

Frontiers of Structural and Civil Engineering   Pages 1086-1099 doi: 10.1007/s11709-023-0976-8

Abstract: Reliability-based design optimization of offshore wind turbine support structures using RBF surrogate

Keywords： RBF     surrogate model     turbine support structures    

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Cutting performance of surgical electrodes by constructing bionic microstriped structures

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0728-9

Abstract: Surgical electrodes rely on thermal effect of high-frequency current and are a widely used medical tool for cutting and coagulating biological tissue. However, tissue adhesion on the electrode surface and thermal injury to adjacent tissue are serious problems in surgery that can affect cutting performance. A bionic microstriped structure mimicking a banana leaf was constructed on the electrode via nanosecond laser surface texturing, followed by silanization treatment, to enhance lyophobicity. The effect of initial, simple grid-textured, and bionic electrodes with different wettabilities on tissue adhesion and thermal injury were investigated using horizontal and vertical cutting modes. Results showed that the bionic electrode with high lyophobicity can effectively reduce tissue adhesion mass and thermal injury depth/area compared with the initial electrode. The formation mechanism of adhered tissue was discussed in terms of morphological features, and the potential mechanism for antiadhesion and heat dissipation of the bionic electrode was revealed. Furthermore, we evaluated the influence of groove depth on tissue adhesion and thermal injury and then verified the antiadhesion stability of the bionic electrode. This study demonstrates a promising approach for improving the cutting performance of surgical electrodes.

Keywords： surgical electrodes     tissue adhesion     thermal injury     bionic structures     cutting performance     medical    

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Mortarless structures based on topological interlocking

Arcady V. DYSKIN, Elena PASTERNAK, Yuri ESTRIN

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 188-197 doi: 10.1007/s11709-012-0156-8

Abstract: We review the principle of topological interlocking and analyze the properties of the mortarless structuresWe concentrate on structures built of osteomorphic blocks – the blocks possessing specially engineeredcontact surfaces allowing assembling various 2D and 3D structures.These structures are easy to build and can be made demountable.The overall structural integrity of these structures depends on the force imposed by peripheral constraint

Keywords： topological interlocking     fragmented structures     segmented structures     constraint     delamination     bending stiffness    

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Title Author Date Type Operation

A numerical framework for underground structures in layered ground under inclined P-SV waves using stiffness

Journal Article

An end-to-end 3d seismic simulation of underground structures due to point dislocation source by using

Zhenning BA; Jisai FU; Zhihui ZHU; Hao ZHONG

Journal Article

Effect of strata restraint on seismic performance of prefabricated sidewall joints in fabricated subway stations

Journal Article

Dynamic study on anti-collapse design for underground structures subjected to explosion

Yang Liming,Zhou Fenghua,Dong Xinlong,Wang Lili

Journal Article

Waterproofing Technology for Underground Fabricated Structure Joints Based on the Open Cut Method

Huang Mingli,Yang Ze,Tan Zhongsheng and Wang Wenzheng

Journal Article

Early Identification of Abnormal Regions in Rock-Mass Using Traveltime Tomography

Longjun Dong,Zhongwei Pei,Xin Xie,Yihan Zhang,Xianhang Yan

Journal Article

Application and development of modern long-span space structures in China

Shilin DONG, Yang ZHAO, Dong XING

Journal Article

Practical optimization of deployable and scissor-like structures using a fast GA method

M. SALAR, M. R. GHASEMI, B. DIZANGIAN

Journal Article

Effect of / molecular structures on pyrolysis performance and heat sink of decalin isomers

Journal Article

A collaborative approach for urban underground space development toward sustainable development goals

Fang-Le PENG, Yong-Kang QIAO, Soheil SABRI, Behnam ATAZADEH, Abbas RAJABIFARD

Journal Article

Prediction of characteristic blast-induced vibration frequency during underground excavation by using

Tae Un PAK; Guk Rae JO; Un Chol HAN

Journal Article

Lateral shear performance of sheathed post-and-beam wooden structures with small panels

Journal Article

Reliability-based design optimization of offshore wind turbine support structures using RBF surrogate

Journal Article

Cutting performance of surgical electrodes by constructing bionic microstriped structures

Journal Article

Mortarless structures based on topological interlocking

Arcady V. DYSKIN, Elena PASTERNAK, Yuri ESTRIN

Journal Article