Query：
学者姓名：邓涛
Refining：
Year
Type
Indexed by
Source
Complex
Former Name
Co-
Language
Clean All
Abstract ：
The lateral displacement of deep soft soil caused by large-area heap loading is a common issue in engineering practice, which affects the stability of neighboring pile foundations. This study investigates the calculation of thrust force exerted by the flow of soft soil around piles and its impact on pile foundations. The surrounding soft soil is considered a Bingham fluid. An analytical formula for single pile flow drag during the internal slip of deep soft soil is derived based on fluid mechanics theory and the fluid characteristics of the Bingham fluid. The traditional cantilever pile approach is modified by assuming a rectangular distribution of flow drag along the pile body and using the matrix transfer method. The response of a single pile body under field heap loading conditions is then analyzed, and the results are compared with the calculation results of the traditional soil pressure method and field-measured data to validate the proposed calculation method for flow drag around a pile in soft soil. Finally, a parametric study is conducted to analyze the effects of the relative flow velocity and dynamic viscous coefficient of soft soil on flow drag.
Keyword ：
Bingham fluid Bingham fluid Flow drag Flow drag Large-area heap loading Large-area heap loading Pile Pile Soft soil Soft soil
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wu, Min , Zheng, Jiayong , Liu, Qijian et al. Calculation method of flow drag around a pile in soft soil considering Bingham fluid properties and analysis of single pile response [J]. | OCEAN ENGINEERING , 2025 , 317 . |
| MLA | Wu, Min et al. "Calculation method of flow drag around a pile in soft soil considering Bingham fluid properties and analysis of single pile response" . | OCEAN ENGINEERING 317 (2025) . |
| APA | Wu, Min , Zheng, Jiayong , Liu, Qijian , Zheng, Lu , Deng, Tao . Calculation method of flow drag around a pile in soft soil considering Bingham fluid properties and analysis of single pile response . | OCEAN ENGINEERING , 2025 , 317 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
煤炭开挖和选煤过程中产生大量煤矸石,堆积于地表的煤矸石易受到环境的影响引发灾害.目前,干湿循环条件下煤矸石土石混合体的强度特性研究较少.通过大型直剪试验,探究干湿循环和含石量对煤矸石土石混合体强度特性的作用机制;揭示含石量(RP)和干湿循环次数对土石混合体积变化及相对破碎率(rB)的影响规律;建立干湿循环下土石混合体抗剪强度劣化方程.试验结果表明,随着含石量的提高,煤矸石土石混合体的内摩擦角呈现线性增加,而黏聚力则呈现出下降趋势;煤矸石土石混合体在剪切过程中呈现明显的剪切收缩现象;煤矸石土石混合体的剪切强度和法向应变最大值随着含石量的增加而增加,并随着干湿循环次数的增加而减小.首次干湿循环对土石混合体的抗剪强度劣化作用显著,3 次干湿循环后土石混合体抗剪强度变化不明显;干湿循环加剧了土石混合体中岩块的破碎趋势,提高岩块的 rB,导致土壤颗粒含量(粒径＜5 mm)增加.高法向应力下(nσ=800 kPa),rB 随干湿循环次数增加而提高,而低法向应力下(nσ=200 kPa)干湿循环对岩块破碎影响有限.
Keyword ：
剪切强度 剪切强度 土石混合体 土石混合体 岩石力学 岩石力学 干湿循环 干湿循环 煤矸石 煤矸石 相对破碎率 相对破碎率
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 刘红位 , 游诗琪 , 简文彬 et al. 干湿循环下煤矸石土石混合体大型直剪试验研究 [J]. | 岩石力学与工程学报 , 2025 , 44 (2) : 331-341 . |
| MLA | 刘红位 et al. "干湿循环下煤矸石土石混合体大型直剪试验研究" . | 岩石力学与工程学报 44 . 2 (2025) : 331-341 . |
| APA | 刘红位 , 游诗琪 , 简文彬 , 黄云 , 冯嵩 , 邓涛 . 干湿循环下煤矸石土石混合体大型直剪试验研究 . | 岩石力学与工程学报 , 2025 , 44 (2) , 331-341 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
An analytical model has been developed to investigate the vertical dynamic response of single end-bearing SDCM piles with partially treated DCM socket. The interaction between the cored pile, the surrounding socket and untreated soil is described using elastodynamics. To evaluate the response of the cored pile, the model is divided into two regions within the DCM and outside the DCM region. The eigenfunctions and eigenvalues for the pile displacement in these two regions are derived. The displacement of the cored pile is obtained in matrix form by finite truncation of the Fourier series. Parametric studies show that the axial strain of the cored pile increases along the shaft depth due to the occurrence of negative skin friction. Pile stiffness increases significantly with the increase of the radius of the DCM socket. The feasible radius r 1 / d for effectively increasing pile stiffness is 5 similar to 10. The depth of the DCM socket also has a significant impact on the response of the cored pile.
Keyword ：
Composite piles Composite piles Partially treated soils Partially treated soils Pile head stiffness Pile head stiffness Vertical vibration Vertical vibration
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Deng, Tao , Liu, Qijian , Lin, Congyu . Analytical solution for vertical vibrations of single end-bearing SDCM piles in partially treated soil [J]. | COMPUTERS AND GEOTECHNICS , 2025 , 179 . |
| MLA | Deng, Tao et al. "Analytical solution for vertical vibrations of single end-bearing SDCM piles in partially treated soil" . | COMPUTERS AND GEOTECHNICS 179 (2025) . |
| APA | Deng, Tao , Liu, Qijian , Lin, Congyu . Analytical solution for vertical vibrations of single end-bearing SDCM piles in partially treated soil . | COMPUTERS AND GEOTECHNICS , 2025 , 179 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
以浅埋偏压矩形隧道为研究对象，基于非关联流动法则和极限分析法，通过构建浅埋偏压矩形隧道的破坏模式，推导静力工况下矩形隧道围岩压力的表达式；采用非线性规划方法，对获得的隧道围岩压力目标函数进行优化计算.研究结果表明，与其他方法相比，本方法的计算结果更接近规范法所计算出的计算值.同一条件下若采用相关联流动法则将显著高估隧道围岩的剪胀性，围岩破坏范围将缩小，竖向围岩压力减小.埋深、地形偏压角和围岩抗剪强度参数均对浅埋偏压矩形隧道围岩压力和破坏特征存在显著影响.
Keyword ：
上限定理 上限定理 围岩压力 围岩压力 浅埋偏压隧道 浅埋偏压隧道 非关联法则 非关联法则
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 魏雯 , 温鹏铭 , 张森华 et al. 非关联流动法则下浅埋偏压矩形隧道围岩压力上限分析方法 [J]. | 福州大学学报(自然科学版) , 2025 , 53 (04) : 470-477 . |
| MLA | 魏雯 et al. "非关联流动法则下浅埋偏压矩形隧道围岩压力上限分析方法" . | 福州大学学报(自然科学版) 53 . 04 (2025) : 470-477 . |
| APA | 魏雯 , 温鹏铭 , 张森华 , 邓涛 . 非关联流动法则下浅埋偏压矩形隧道围岩压力上限分析方法 . | 福州大学学报(自然科学版) , 2025 , 53 (04) , 470-477 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
A rigorous solution for the kinematic response of the disconnected piles under vertically incident P-waves is presented. A new soil-pile column model is proposed with two fictitious soil columns as the extensions of the shaft along the pile top and tip. The discontinuity of the pile at the two ends is modeled using the Heaviside function to simulate the continuity of the soil-pile column. The total displacement of the soil is divided into the free-field and scattered components. The displacement of the soil-pile system is calculated in terms of the method of separation of variables and the soil-pile interaction. A parametric study indicates that for the disconnected pile, the displacement at the pile top increases significantly with the increase of the cushion thickness, and its effect on the scattered field is weak. The axial force of the disconnected pile decreases gradually with the increase of the cushion thickness. The displacement and axial force of the disconnected pile are significantly influenced by the slenderness ratio of the pile.
Keyword ：
Disconnected pile Disconnected pile fictitious soil-pile column fictitious soil-pile column kinematic response kinematic response the soil-pile interaction the soil-pile interaction vertically incident P-waves vertically incident P-waves
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Hu, Chenglong , Liu, Qijian , Deng, Tao et al. Rigorous Solution for the Kinematic Response of Single Disconnected Piles Subjected to Vertically Incident P-Waves [J]. | JOURNAL OF EARTHQUAKE AND TSUNAMI , 2024 , 18 (04) . |
| MLA | Hu, Chenglong et al. "Rigorous Solution for the Kinematic Response of Single Disconnected Piles Subjected to Vertically Incident P-Waves" . | JOURNAL OF EARTHQUAKE AND TSUNAMI 18 . 04 (2024) . |
| APA | Hu, Chenglong , Liu, Qijian , Deng, Tao , Zeng, Lei . Rigorous Solution for the Kinematic Response of Single Disconnected Piles Subjected to Vertically Incident P-Waves . | JOURNAL OF EARTHQUAKE AND TSUNAMI , 2024 , 18 (04) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Shield misalignment is a common problem in shield tunnels, which seriously affects the safety and durability of tunnels. However, at present, there is a lack of research on the influence of shield misalignment on the shear capacity of the circumferential joint structure, and the failure mechanism of the circumferential joint structure before and after reinforcement is not clear. Therefore, this paper simulates the influence of misalignment on the performance mechanism of segmented circumferential connection and the effect of channel reinforcement on the ABAQUS platform. The simulation results are compared with the full-scale test results, and the results show that the shear failure process of the circumferential joint can be divided into three stages under the condition of no reinforcement. In the first stage, the vertical load increases, but the misalignment between the shield tunneling sections is very small. In the second stage, the load almost does not increase, but the degree of misalignment increases. In the third stage, the load-displacement relationship is nonlinear, indicating that the bending bolt has been sheared. Under the condition of unreinforced, the bolt will form two plastic hinges when it fails. After reinforcing the channel, the removal of the bolt forms only one plastic hinge. After channel steel reinforcement, the boundary area between the channel steel web and the steel plate first reaches the ultimate tensile strength of the steel plate, and the failure mode becomes channel steel reinforcement failure. Under the same shear load, the misalignment of the circumferential joint reinforced with channel steel is reduced. In this paper, the misalignment relationship of shear load and the yield of the bending bolt obtained through numerical calculation is consistent with the conclusion of the full-scale test. However, the circumferential connection misalignment obtained via numerical calculation is relatively small. The yield position of the bending bolt is also in good agreement with the test results, and the bolt strain obtained through the test is relatively small.
Keyword ：
channel reinforcement channel reinforcement circumferential joints circumferential joints full-scale test full-scale test misalignment misalignment shield tunneling segments shield tunneling segments
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Su, Hang , Deng, Tao , Yang, Zengquan et al. Characterization of Shear Damage and Channel Reinforcement of Circumferential Joints between Shield Tunneling Segments Based on Numerical Simulation [J]. | BUILDINGS , 2024 , 14 (2) . |
| MLA | Su, Hang et al. "Characterization of Shear Damage and Channel Reinforcement of Circumferential Joints between Shield Tunneling Segments Based on Numerical Simulation" . | BUILDINGS 14 . 2 (2024) . |
| APA | Su, Hang , Deng, Tao , Yang, Zengquan , Qin, Jianpeng , Zheng, Lu . Characterization of Shear Damage and Channel Reinforcement of Circumferential Joints between Shield Tunneling Segments Based on Numerical Simulation . | BUILDINGS , 2024 , 14 (2) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
A vertical displacement model based on pile-soil interaction and continuum mechanics was proposed to simulate the displacement of the pile-soil system in response to the negative friction force of a single pile caused by ground overload. The model included the displacement function of the pile-soil axis and the attenuation function along the radial direction. The total potential energy of the pile-soil system was obtained by using the variational calculus, and the coupled control equations for the pile-soil displacement and attenuation function in the displacement model were obtained. The iterative method was used to solve these two coupling functions, and mathematical expressions for key parameters such as pile axial force, neutral plane, negative frictional resistance, down-drag force, and equivalent stiffness of soil spring were obtained. The correctness of the proposed method were verified through comparison with in-situ experiments and existing theoretical results. The results show that the ratio of pile-soil modulus has a significant impact on the negative friction resistance and down-drag force of piles, and the position of the neutral plane is closely related to the slenderness ratio, while it is not closely related to the ratio of pile-soil modulus. As the pile-soil modulus ratio increases and the pile slenderness ratio decreases, the axial force at the same position of the pile increases significantly, but the growth rate slows down. The maximum settlement of soil displacement around piles under ground overload occurs at the surface, and the range of 0. 3 times the pile length below the surface is a strongly affected area of displacement. The increase in pile slenderness ratio and pilesoil modulus ratio will both increase the range of influence on the displacement field of the soil around the pile. © 2024, Editorial Department of Journal of Architecture and Civil Engineering. All rights reserved.
Keyword ：
down-drag force down-drag force floating pile floating pile ground overload ground overload neutral plane neutral plane variational calculus variational calculus
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Q. , Su, Y. , Huang, Y. et al. Continuum mechanical solution for negative frictional resistance of single floating pile under ground overload [J]. | Journal of Architecture and Civil Engineering , 2024 , 41 (2) : 173-180 . |
| MLA | Liu, Q. et al. "Continuum mechanical solution for negative frictional resistance of single floating pile under ground overload" . | Journal of Architecture and Civil Engineering 41 . 2 (2024) : 173-180 . |
| APA | Liu, Q. , Su, Y. , Huang, Y. , Deng, T. . Continuum mechanical solution for negative frictional resistance of single floating pile under ground overload . | Journal of Architecture and Civil Engineering , 2024 , 41 (2) , 173-180 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
When applying the three-dimensional discontinuous deformation analysis (3D-DDA) method to simulate the dynamic response of rock mass in an earthquake, appropriate artificial boundaries and input methods should be considered. In this study, the 3D-DDA method was modified by introducing the viscoelastic artificial boundary and the seismic motion input method based on the wave field decomposition method and with the consideration of the lateral free-field wave. Subsequently, the correctness of the boundary and the input method was verified through numerical examples. The results of the numerical examples were almost consistent with the theoretical solution. The introduced viscoelastic artificial boundary and seismic motion input method improved the applicability of the 3D-DDA method and can be further applied to simulate actual engineering cases. Viscoelastic artificial boundary is applied and validated in 3D-DDA.The differences between viscoelastic boundary and existing boundaries are compared.Modified 3D-DDA can consider wave field decomposition and lateral free-field wave for seismic motion input.Feasibility of modified 3D-DDA to study the dynamic response of rock mass in an earthquake is studied.
Keyword ：
Artificial boundary Artificial boundary Seismic motion input methods Seismic motion input methods Three-dimensional discontinuous deformation analysis method Three-dimensional discontinuous deformation analysis method Viscoelastic boundary Viscoelastic boundary
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Lin, Si-huang , Deng, Tao , Zheng, Lu et al. Implementation of Viscoelastic Artificial Boundary and Seismic Motion Input Method in Three-Dimensional Discontinuous Deformation Analysis Method [J]. | ROCK MECHANICS AND ROCK ENGINEERING , 2024 , 57 (7) : 4995-5015 . |
| MLA | Lin, Si-huang et al. "Implementation of Viscoelastic Artificial Boundary and Seismic Motion Input Method in Three-Dimensional Discontinuous Deformation Analysis Method" . | ROCK MECHANICS AND ROCK ENGINEERING 57 . 7 (2024) : 4995-5015 . |
| APA | Lin, Si-huang , Deng, Tao , Zheng, Lu , Zhang, Hong , Wu, Wei , Fu, Xiao-dong et al. Implementation of Viscoelastic Artificial Boundary and Seismic Motion Input Method in Three-Dimensional Discontinuous Deformation Analysis Method . | ROCK MECHANICS AND ROCK ENGINEERING , 2024 , 57 (7) , 4995-5015 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Calculating disc cutter wear and predicting wear life are long-standing issues affecting the efficiency and cost of tunnel boring machines (TBMs). During the TBM excavation process, the wear of the disc cutter is a comprehensive outcome of the interaction between the tool and rock. Studying the mechanisms of tool rock breaking and wear can assist in developing a more precise model for predicting cutter wear. Therefore, based on the rock-breaking and wear mechanisms of a cutter, this study developed a model for predicting the cutter wear rate and life. The model is based on the theory of dense core–cavity expansion combined with the motion state of a cutter. First, the TBM excavation process and rock-breaking mechanism of a cutter were analyzed in detail. A cutting force model under the compression shear failure mode based on the dense core–cavity expansion theory was established. Based on the force model, a prediction model for the wear rate and life of the disc cutter was established, considering the working characteristics and wear mechanism. Furthermore, the impact of penetration on the prediction model was investigated. In addition, to demonstrate the practicality of the method, this study conducted a comprehensive examination using engineering examples. The results showed that the average difference in the cutter average wear rate using the developed model was less than 3% compared with the actual engineering result. In addition, the average difference in the wear life rate was less than 5%. Finally, the developed prediction method was compared with other models. The wear rate fitting accuracy was improved by 4.91–10.85% and the wear life fitting accuracy was improved by 5.11–12.19% by the developed method. This improvement confirms the reasonableness and reliability of the method. This method can estimate the wear rate and lifespan of a cutter more accurately and reliably than other methods, providing a practical tool to TBM engineers to make informed decisions and optimize tool replacement programs.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | H Su , Z C Guan , T Deng et al. Force and wear prediction model of disc cutter under compression shear failure mode based on dense core–cavity expansion theory (U-713) [J]. | IOP Conference Series:Earth and Environmental Science , 2024 , 1333 (1) . |
| MLA | H Su et al. "Force and wear prediction model of disc cutter under compression shear failure mode based on dense core–cavity expansion theory (U-713)" . | IOP Conference Series:Earth and Environmental Science 1333 . 1 (2024) . |
| APA | H Su , Z C Guan , T Deng , Z Q Yang , J P Qin , L Zheng . Force and wear prediction model of disc cutter under compression shear failure mode based on dense core–cavity expansion theory (U-713) . | IOP Conference Series:Earth and Environmental Science , 2024 , 1333 (1) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
High stress in surrounding rock will lead to serious problems,e.g.,rock burst in hard rock and large defor-mation in soft rock.The applied support system under high in-situ stress conditions should be able to carry high load and also accommodate large deformation without experiencing severe damage.In this paper,a specially designed energy-absorbing component for rock bolt and cable that can solve the above problems was proposed.The energy-absorbing component can provide support resistance by plastic deformation of the metal including constraint annulus and compression pipe.For practical engineering,two forms were proposed.One was installed in the surrounding rock by reaming,and the other was installed directly outside the surrounding rock.During the dilation of the surrounding rock,the relative displacement of constraint annulus and compression pipe occurs,resulting in deformation resistance.Deformation resistance is transmitted to the rock bolt or cable,providing support resistance.The lab test and numerical simulation showed that the energy-absorbing component can perfectly achieve the large deformation effect,the deformation amount is as high as 694 mm,and the bearing capacity is stable at 367 kN.The field application tests were carried out in the mining roadway of Xinjulong coal mine,and the results showed that the new type of cable can ensure itself not to break under the condition of large deformation of the surrounding rock.The energy-absorbing component has the superiorities of perform-ing large constant resistance and controllable deformation to effectively control the unpredictable disas-ters such as large deformation in soft rock and rock burst in hard rock encountered in deep strata.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Xuezhen Wu , Mingzhu Zhao , Qing Ye et al. A new deformable cable for rock support in high stress tunnel:Steel pipe shrinkable energy-absorbing cable [J]. | 矿业科学技术学报（英文版） , 2024 , 34 (8) : 1083-1093 . |
| MLA | Xuezhen Wu et al. "A new deformable cable for rock support in high stress tunnel:Steel pipe shrinkable energy-absorbing cable" . | 矿业科学技术学报（英文版） 34 . 8 (2024) : 1083-1093 . |
| APA | Xuezhen Wu , Mingzhu Zhao , Qing Ye , Yujing Jiang , Tao Deng , Hanfang Zheng et al. A new deformable cable for rock support in high stress tunnel:Steel pipe shrinkable energy-absorbing cable . | 矿业科学技术学报（英文版） , 2024 , 34 (8) , 1083-1093 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
