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学者姓名：陶连金
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Abstract ：
In order to study the seismic response of deep non-circular tunnels under far-field seismic SV waves, a pseudo static analytical solution for the seismic response of the tunnel was first derived by using complex variable function theory and conformal mapping method. The proposed analytical solution can take into account variations in the lining thickness and the different interactions between the surrounding rock and lining. Then, the validity and correctness of the analytical solution were verified by numerical methods based on engineering examples of circular, elliptical and horseshoe tunnels. Finally, the significant effects of key parameters, such as the surrounding rock-lining interface conditions, the lining cross-sectional geometry, and the relative stiffness of the surrounding rock and the lining, on the seismic response of the tunnel were discussed. The results showed that with the increase in the interface flexibility coefficient, the normalized thrust of elliptical and horseshoe linings decreased, the deformation increased, and the moment first increased and then decreased. The influence of cross-sectional shape on the internal force of the lining is complex. The large-span and flat lining of the tunnel had large deformation and surrounding rock stress. The increase in the elastic modulus of the surrounding rock or the decrease in the lining thickness resulted in a decrease in the lining thrust and moment and an increase in the deformation. The reasonable combination of rock stiffness and lining thickness can be used to achieve the optimal balance between the internal forces and deformation of the flexible lining in the seismic design of the tunnel. The proposed solution can be easily and quickly applied to the preliminary analysis and prediction of the seismic internal force and deformation of deep tunnels, providing a theoretical basis and scientific reference for engineering seismic design and evaluation.
Keyword ：
Tunnel Tunnel Pseudo-static analysis Pseudo-static analysis Analytical solution Analytical solution Complex function theory Complex function theory Seismic design Seismic design
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| GB/T 7714 | Shi, Cheng , Tao, Lianjin , Ding, Peng et al. Analytical solution for deep non-circular tunnels considering slippage effects under far-field seismic SV waves [J]. | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY , 2023 , 144 . |
| MLA | Shi, Cheng et al. "Analytical solution for deep non-circular tunnels considering slippage effects under far-field seismic SV waves" . | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY 144 (2023) . |
| APA | Shi, Cheng , Tao, Lianjin , Ding, Peng , Wang, Zhigang , Jia, Zhibo , Shi, Ming . Analytical solution for deep non-circular tunnels considering slippage effects under far-field seismic SV waves . | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY , 2023 , 144 . |
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Abstract ：
In order to study the seismic response characteristics of the giant-span flat cavern (GSFC), a nonlinear finite element model of the GSFC was firstly established by ABAQUS software to investigate the seismic deformation characteristics and stress variation law of the GSFC in detail. Secondly, the bearing mechanism of the GSFC was systematically analyzed. Finally, the damage evolution law and failure mechanism of the GSFC were revealed. The results showed that the deformation, stress and damage of the GSFC under design and rare earthquakes were within safe and controllable limits. The interaction between the linings had a certain damping and peak -elimination effect. When the PGA was 0.2 g, the peak acceleration of the inside lining was reduced by 10% compared to the outside lining, the deformation response was reduced by 39%, and its seismic stress distribution was more uniform. In the bearing system of the GSFC, the surrounding rock was supported the lining so that its self-bearing capacity was fully utilized, while the lining was embedded by the surrounding rock, improving its integrity and stiffness. Under extreme earthquakes, the damage evolution processes of the surrounding rock and the lining were coupled with each other. The continuous plastic strain occurred mainly at the bottom and top of the surrounding rock. The outside lining was mostly destroyed, and the inside lining gradually degraded into a double-hinged arch structure supported by the side walls, so that the seismic performance of the surrounding rock-lining bearing system was lost. The degraded structure can maintain a relatively stable vertical self -equilibrium state and is not prone to extreme damage such as overall collapse. The research conclusions could provide a theoretical basis and scientific reference for accurate seismic prediction and safety evaluation of the GSFC.
Keyword ：
Failure mechanism Failure mechanism Seismic response Seismic response Giant -span flat cavern Giant -span flat cavern Finite element analysis Finite element analysis Bearing characteristic Bearing characteristic
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| GB/T 7714 | Shi, Cheng , Tao, Lianjin , Ding, Peng et al. Study on seismic response characteristics and failure mechanism of giant-span flat cavern [J]. | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY , 2023 , 140 . |
| MLA | Shi, Cheng et al. "Study on seismic response characteristics and failure mechanism of giant-span flat cavern" . | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY 140 (2023) . |
| APA | Shi, Cheng , Tao, Lianjin , Ding, Peng , Wang, Zhigang , Jia, Zhibo . Study on seismic response characteristics and failure mechanism of giant-span flat cavern . | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY , 2023 , 140 . |
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Abstract ：
In order to study the dynamic characteristics of the prefabricated subway station structure (PSSS), a finite element model was developed to simulate interaction among the soil, the envelope structure, and the underground PSSS during earthquakes. Numerical simulation and analysis of the nonlinear seismic responses of the PSSS were implemented. The dynamic relative horizontal deformation of structure and the stress responses on the components were analyzed in detail. The seismic damage characteristics of the PSSS were discovered preliminarily. The results indicated that within the seismic fortification levels, the PSSS had excellent seismic performance and met the seismic performance requirements of the current standard. The additional influence of vertical ground motion on the seismic response of PSSS could not be ignored. Due to the significant increase in damage under the giant earthquakes, the side walls, the crown arch, and the envelope structure were the weak positions for earthquake resistance, which should be given sufficient attention. The research conclusions could provide reasonable reference and guidance for the seismic design of the PSSS.
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| GB/T 7714 | Tao, Lianjin , Shi, Cheng , Ding, Peng et al. Nonlinear Seismic Response and Damage Analysis of a Prefabricated Subway Station Structure [J]. | LIFELINES 2022: 1971 SAN FERNANDO EARTHQUAKE AND LIFELINE INFRASTRUCTURE , 2022 : 267-280 . |
| MLA | Tao, Lianjin et al. "Nonlinear Seismic Response and Damage Analysis of a Prefabricated Subway Station Structure" . | LIFELINES 2022: 1971 SAN FERNANDO EARTHQUAKE AND LIFELINE INFRASTRUCTURE (2022) : 267-280 . |
| APA | Tao, Lianjin , Shi, Cheng , Ding, Peng , Wu, Shang , Li, Sicheng , Huang, Linkun . Nonlinear Seismic Response and Damage Analysis of a Prefabricated Subway Station Structure . | LIFELINES 2022: 1971 SAN FERNANDO EARTHQUAKE AND LIFELINE INFRASTRUCTURE , 2022 , 267-280 . |
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Abstract ：
邻近地面建筑一体化地铁车站结构地震响应分析
Keyword ：
土-结构相互作用 土-结构相互作用 地震响应 地震响应 数值分析 数值分析 空间效应 空间效应 地铁车站结构 地铁车站结构 一体化结构 一体化结构
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| GB/T 7714 | 韩学川 , 陶连金 , 安韶 et al. 邻近地面建筑一体化地铁车站结构地震响应分析 [J]. | 韩学川 , 2021 , 47 (4) : 338-345 . |
| MLA | 韩学川 et al. "邻近地面建筑一体化地铁车站结构地震响应分析" . | 韩学川 47 . 4 (2021) : 338-345 . |
| APA | 韩学川 , 陶连金 , 安韶 , 张宇 , 史明 , 北京工业大学学报 . 邻近地面建筑一体化地铁车站结构地震响应分析 . | 韩学川 , 2021 , 47 (4) , 338-345 . |
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Abstract ：
不同类型地震波作用下一体化车站结构地震响应分析
Keyword ：
空间效应 空间效应 地震响应 地震响应 一体化结构 一体化结构 数值分析 数值分析
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| GB/T 7714 | 韩学川 , 陶连金 , 张宇 et al. 不同类型地震波作用下一体化车站结构地震响应分析 [J]. | 韩学川 , 2021 , 21 (4) : 1506-1514 . |
| MLA | 韩学川 et al. "不同类型地震波作用下一体化车站结构地震响应分析" . | 韩学川 21 . 4 (2021) : 1506-1514 . |
| APA | 韩学川 , 陶连金 , 张宇 , 贾志波 , 科学技术与工程 . 不同类型地震波作用下一体化车站结构地震响应分析 . | 韩学川 , 2021 , 21 (4) , 1506-1514 . |
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Abstract ：
Jacking force is one of the most important parameters in pipe jacking engineering, and also the key in pipe jacking design. A lot of research has been done on the prediction of jacking force of a single pipe. However, the research on jacking force of a row of steel pipes is relatively rare. A case of pipe jacking project is studied in this paper. In construction the test pipes were successfully jacked into the designed position, but the subsequent pipes were stuck because the jacking machine could not provide enough jacking force. Based on this phenomenon, the influence on the jacking force from the pipe spacing and the number of pipes have been jacked around the pipe being jacked is studied by field measurement and numerical simulation. The mechanism of the steel pipes stuck after the test pipes is analysed in detail. The results show that the jacking force decreases nonlinearly with the increase of the pipe spacing, and the influence range of pipe jacking is three times the pipe diameter; the jacking force increases with the increment of the number of pipes that have been jacked, but the increasing trend gradually slows down. Based on the above results, the pipe group effect of jacking force is proposed which is verified by the measured data. The results indicate that the amplification and superposition effect of the jacking force should be considered in the design stage to avoid pipes stuck in the jacking process.
Keyword ：
Jacking force Jacking force Group effect of pipe jacking Group effect of pipe jacking Field monitor Field monitor Numerical simulation Numerical simulation Comparative analysis Comparative analysis
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| GB/T 7714 | Tao, Lian-Jin , Zhang, Yu , Zhao, Xu et al. Group Effect of Pipe Jacking in Silty Sand [J]. | JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING , 2021 , 147 (11) . |
| MLA | Tao, Lian-Jin et al. "Group Effect of Pipe Jacking in Silty Sand" . | JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING 147 . 11 (2021) . |
| APA | Tao, Lian-Jin , Zhang, Yu , Zhao, Xu , Bian, Jin , Chen, Xiang-Hong , An, Shao et al. Group Effect of Pipe Jacking in Silty Sand . | JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING , 2021 , 147 (11) . |
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Abstract ：
AM工法抗拔桩承载性状及影响因素分析
Keyword ：
AM工法 AM工法 影响因素 影响因素 承载性状 承载性状 扩孔抗拔桩 扩孔抗拔桩
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| GB/T 7714 | 范磊 , 马骏翔 , 丁青松 et al. AM工法抗拔桩承载性状及影响因素分析 [J]. | 范磊 , 2021 , 39 (5) : 85-90 . |
| MLA | 范磊 et al. "AM工法抗拔桩承载性状及影响因素分析" . | 范磊 39 . 5 (2021) : 85-90 . |
| APA | 范磊 , 马骏翔 , 丁青松 , 陶连金 , 工程质量 . AM工法抗拔桩承载性状及影响因素分析 . | 范磊 , 2021 , 39 (5) , 85-90 . |
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Abstract ：
城市轨道交通枢纽一体化车站结构震害机理
Keyword ：
一体化结构 一体化结构 数值分析 数值分析 空间效应 空间效应 地震响应 地震响应
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| GB/T 7714 | 韩学川 , 陶连金 , 张宇 et al. 城市轨道交通枢纽一体化车站结构震害机理 [J]. | 韩学川 , 2021 , 52 (3) : 925-935 . |
| MLA | 韩学川 et al. "城市轨道交通枢纽一体化车站结构震害机理" . | 韩学川 52 . 3 (2021) : 925-935 . |
| APA | 韩学川 , 陶连金 , 张宇 , 中南大学学报:自然科学版 . 城市轨道交通枢纽一体化车站结构震害机理 . | 韩学川 , 2021 , 52 (3) , 925-935 . |
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Abstract ：
为了研究城市轨道交通一体化地铁车站结构的地震响应特性及震害机理,基于混凝土塑性损伤理论,采用ABAQUS有限元软件建立静-动力耦合大型三维有限元数值模型,计算分析地震损伤演化过程和破坏机理,探讨一体化地铁车站结构的空间效应。研究结果表明:城市轨道交通枢纽一体化结构兼备地铁地下车站结构和地上结构2种特性,原有单体车站结构的动力特性和反应发生改变;一体化地铁车站结构的水平位移随车站结构埋深增加逐渐减小,层间相对水平位移随车站结构埋深增加逐渐增大,车站结构的横截面方向和竖向均发生塑形变形,表现出塑形积累现象;一体化地铁车站各层楼板和墙柱的交接处是抗震最不利位置,底层中柱和侧墙底部的损伤最严重,是整个...
Keyword ：
一体化结构 一体化结构 地震响应 地震响应 数值分析 数值分析 空间效应 空间效应
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| GB/T 7714 | 韩学川 , 陶连金 , 张宇 . 城市轨道交通枢纽一体化车站结构震害机理 [J]. | 中南大学学报(自然科学版) , 2021 , 52 (03) : 925-935 . |
| MLA | 韩学川 et al. "城市轨道交通枢纽一体化车站结构震害机理" . | 中南大学学报(自然科学版) 52 . 03 (2021) : 925-935 . |
| APA | 韩学川 , 陶连金 , 张宇 . 城市轨道交通枢纽一体化车站结构震害机理 . | 中南大学学报(自然科学版) , 2021 , 52 (03) , 925-935 . |
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Abstract ：
In instances where earthquakes with large magnitude occur, liquefaction-induced lateral deformation of ground has caused thorough destruction to the underground structure of urban rail transit. A sequence of shaking table experiments was conducted on shield-enlarge-dig type's subway station structure in liquefiable ground exposed to the near field earthquake and the far field earthquake. Outcomes of these experiments are discussed in items of foundation deformation, pore water pressure, acceleration response, dynamic soil pressure, and macroscopic failure of model structure. The measured data infers that, when subjected to a high intensity earthquake, the model structure generates an upward movement relative to the foundation. The difference between the soil pressure above and below the structure is the internal cause of the liquefaction-induced uplift of the structure. The shear deformation to the soil layer of the foundation happened, and the displacement peak values of the left and right pendula were asymmetric. The acceleration response and its amplification coefficient in the model foundation gradually increases towards the surface from the bottom as a result of a low intensity earthquake, but for medium and high intensity earthquakes, the acceleration response decreases first and then increases. A notable phenomenon of high frequency filtering and low frequency amplification ensued during the seismic wave propagation from the bottom to the surface of soil. For the same depth of measuring points in foundation soil, the time when the pore-pressure ratio reaches the peak lags behind the time when the acceleration reaches the peak, and the hysteresis is more intense with a rise in magnitude of ground movement. The response spectrum of a low intensity earthquake is characterized by low period accumulation and amplification, while the response spectrum of medium and high intensity is characterized by moves from short period to long period and multi-peaks. The pore pressure accumulation of the model foundation experienced a change process of "rapid growth and slow dissipation," and the time period of its sharp increase was consistent with that of the sharp increase of the acceleration arias strength. The existence of the underground structure notably inhibits an increase in pore water pressure. The earthquake damage mechanism of the underground subway station of shield-enlarge-dig type in liquefiable ground occurred in three phases: shear failure occurred on the column and damaged the opening position and spandrel of the tunnel; connection parts of the side wall and roof exhibited tensile damage; and the underground structure collapsed.
Keyword ：
Liquefiable sites Liquefiable sites Numerical simulation Numerical simulation Seismic failure mechanism Seismic failure mechanism type's subway station type's subway station Shaking table test Shaking table test
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| GB/T 7714 | An, Junhai , Tao, Lianjin , Jiang, Luzhen et al. A shaking table-based experimental study of seismic response of shield-enlarge-dig type's underground subway station in liquefiable ground [J]. | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING , 2021 , 147 . |
| MLA | An, Junhai et al. "A shaking table-based experimental study of seismic response of shield-enlarge-dig type's underground subway station in liquefiable ground" . | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 147 (2021) . |
| APA | An, Junhai , Tao, Lianjin , Jiang, Luzhen , Yan, Hongjin . A shaking table-based experimental study of seismic response of shield-enlarge-dig type's underground subway station in liquefiable ground . | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING , 2021 , 147 . |
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