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Geotechnical special publication最新文献

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Application of Dynamic Image Analysis to Sand Particle Classification Using Deep Learning 基于深度学习的动态图像分析在沙粒分类中的应用
Pub Date : 2020-02-21 DOI: 10.1061/9780784482803.065
N. Machairas, Linzhu Li, Magued Iskander
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引用次数: 3
Implementing and Assessing a Game-Based Module in Geotechnical Engineering Education 基于游戏的岩土工程教学模式的实施与评估
Pub Date : 2020-02-21 DOI: 10.1061/9780784482810.070
V. Bennett, C. Harteveld, T. Abdoun, U. Shamy, F. McMartin, B. Tiwari, A. De
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引用次数: 7
Hydromechanical Coupled Cohesive Zone Modeling of Induced Earthquakes under Fluid Injections 流体注入诱发地震的水-力耦合内聚区模拟
Pub Date : 2020-02-21 DOI: 10.1061/9780784482803.003
Danilo Zeppilli, Cheng Zhu, A. Pouya
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引用次数: 0
Hotspot Life Cycle Assessment for Environmental Impacts of EICP for Ground Improvement EICP地基改善工程环境影响热点生命周期评价
Pub Date : 2020-02-21 DOI: 10.1061/9780784482834.035
K. Martin, T. Khodadadi, M. Chester, E. Kavazanjian
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引用次数: 8
A Series of Centrifuge Experiments Investigating the Effect of High Confining Pressure on Sand Liquefaction 高围压对砂土液化影响的一系列离心实验研究
Pub Date : 2020-02-21 DOI: 10.1061/9780784482810.032
M. Ni, T. Abdoun, R. Dobry, W. El-Sekelly
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引用次数: 0
Static and Dynamic Analysis of Torpedo Anchor Penetration and Pullout in Cohesive Soils 粘性土中鱼雷锚穿拔的静动力分析
Pub Date : 2020-02-21 DOI: 10.1061/9780784482803.031
A. Ads, M. Omidvar, S. Bless, Magued Iskander
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引用次数: 0
Development of a New Geopolymer Based Cementitious Material for Pumpable Roof Supports in Underground Mining 地下开采可泵送顶板支架新型地聚合物胶凝材料的研制
Pub Date : 2020-02-21 DOI: 10.1061/9780784482797.032
Arash Nikvar-Hassani, Lianyang Zhang
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引用次数: 4
Impact of Shell Opening of a Model Razor Clam on the Evolution of Force Chains in Granular Media 模型蛏子壳开度对颗粒介质中力链演化的影响
Pub Date : 2020-02-21 DOI: 10.1061/9780784482834.030
Sichuan Huang, Nariman Mahabadi, J. Tao
The razor clams alternately inflate the shelled body and the muscular foot when burrowing down to the ground. It is found from previous numerical simulations that inflation of the shelled body not only forms a firm anchor for the foot penetration, but also reduces penetration resistance; on the other hand, further foot penetration relaxes the shell anchorage, which may compromise the burrowing effectiveness and efficiency. This study utilizes a photoelasticity-based technology, augmented with image processing, to validate the numerical findings. A simplified penetrator model composed of an expandable rectangular shell and a protrusible triangular foot is designed and incorporated into a transparent cell containing more than four thousand photoelastic disks. Sequential images are then taken during the model penetration, which include an initial foot penetration, followed by shell expansion and then another foot penetration. An image processing algorithm is developed to detect the evolution of grain contact forces (orientation and magnitude of contact forces) during the shell expansion and foot penetration of the model. Results from this study confirm the existence of the mutual influence between shell expansion pressure and foot penetration resistance: that is, increasing one causes reduction of the other and vice versa.
剃刀蛤在向地下挖洞时交替地使有壳的身体和肌肉发达的脚膨胀。从前人的数值模拟中发现,壳体的膨胀不仅为足部侵穿形成了牢固的锚,而且降低了侵穿阻力;另一方面,足部进一步侵彻会使壳锚松弛,从而影响掘进的有效性和效率。本研究利用基于光弹性的技术,结合图像处理,来验证数值结果。设计了一个由可膨胀的矩形外壳和可伸出的三角形脚组成的简化穿甲弹模型,并将其集成到一个包含4000多个光弹性盘的透明单元中。然后在模型穿透过程中拍摄顺序图像,其中包括初始脚穿透,随后是壳膨胀,然后是另一个脚穿透。提出了一种图像处理算法,用于检测模型在壳体膨胀和足部侵穿过程中颗粒接触力(接触力的方向和大小)的演变。本研究结果证实了壳体膨胀压力与足部侵彻阻力之间存在相互影响,即一方增大另一方减小,反之亦然。
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引用次数: 4
Parametric Assessment of Stiff Column Behavior under Lateral Load 横向荷载作用下刚性柱性能的参数化评价
Pub Date : 2020-02-21 DOI: 10.1061/9780784482780.067
Alfonso J. Rivera, C. Olgun, T. Brandon, F. Massé
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引用次数: 0
Bio-Grout Materials: A Review 生物灌浆材料:综述
Pub Date : 2017-07-06 DOI: 10.1061/9780784480793.001
T. Khodadadi, E. Kavazanjian, L. Paassen, J. DeJong
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引用次数: 53
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Geotechnical special publication
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