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学者姓名：缪圆冰
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Abstract ：
为构建缓冲层复合支护体系理论模型,分析缓冲层复合支护体系让压机理,弥补当前缓冲层让压机理的局限性.利用弹性力学知识,以单层厚壁圆筒模型为基础构建3层厚壁圆筒模型,推导出缓冲层复合支护体系中支护结构受力与外荷载之间函数关系,并用数值模拟的方法验证缓冲层复合支护结构受力解析解的正确性.基于此理论模型,分析了有无缓冲层复合支护体系中二衬和初支的受力特点,总结出缓冲层让压机理:在含有缓冲层的复合支护体系中,缓冲层材料被压缩,初支能够发生更大的向内变形量,进而吸收外部荷载作用,减小二衬的受力,从而整个结构能够实现让压效果,即缓冲层复合支护通过缓冲层压缩实现让压.通过改变缓冲层厚度对让压机理进行分析.结果表明:当缓冲层厚度为5cm时,初支的形变量增加了 1.34 cm,传递到二衬上的作用力也相应减小了 71.6％;当缓冲层厚度增加至10 cm时,二衬的受力也进一步减小,对二衬结构更为有利.在让压支护体系中,随着缓冲层被压缩,初支也会发生更大的变形,初支内部应力也会增大,尤其是环向应力,即缓冲层的让压对初支受力是不利的,对二衬受力是有利的.因此,在复合让压支护体系中,当外部作用力一定时,对支护体系中缓冲层的设计要同时考虑初支和二衬的应力,即缓冲层的厚度存在一个最优值.
Keyword ：
厚壁圆筒模型 厚壁圆筒模型 缓冲层 缓冲层 膨胀岩 膨胀岩 让压机理 让压机理 隧道工程 隧道工程
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| GB/T 7714 | 刘刚 , 王皓 , 许崇帮 et al. 膨胀岩隧道缓冲层复合支护体系让压机理 [J]. | 公路交通科技 , 2024 , 41 (8) : 181-188 . |
| MLA | 刘刚 et al. "膨胀岩隧道缓冲层复合支护体系让压机理" . | 公路交通科技 41 . 8 (2024) : 181-188 . |
| APA | 刘刚 , 王皓 , 许崇帮 , 缪圆冰 , 龚建伍 . 膨胀岩隧道缓冲层复合支护体系让压机理 . | 公路交通科技 , 2024 , 41 (8) , 181-188 . |
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为探究充填物厚度和锚固结构联合作用对节理岩体剪切特性的影响,开展室内剪切试验和离散元数值模拟研究.首先制备类岩石材料节理试件进行室内剪切试验,结果表明,锚固结构在破坏前可显著提高节理岩体试件的峰值剪应力;随着充填物厚度增大,节理岩体试件的峰值剪应力减小,而锚杆的极限剪切位移会增大.建立不同充填物厚度的锚固充填节理数值模型,通过数值模拟进一步分析法向应力与锚固结构对剪切位移、峰值剪应力、法向位移、细观裂纹的影响.宏观结果表明法向应力越小,法向位移越大即剪胀越明显,且加锚试件的法向位移会高于无锚试样.细观结果则显示出试样的总裂纹数量随法向应力的增大而增大,且加锚试样的总裂纹数量明显高于无锚杆试样.
Keyword ：
充填厚度 充填厚度 剪切试验 剪切试验 微观裂纹 微观裂纹 离散元 离散元 锚杆 锚杆
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| GB/T 7714 | 吴学震 , 郑含芳 , 蒋宇静 et al. 锚固充填节理剪切试验与数值模拟研究 [J]. | 工程地质学报 , 2024 , 32 (5) : 1814-1824 . |
| MLA | 吴学震 et al. "锚固充填节理剪切试验与数值模拟研究" . | 工程地质学报 32 . 5 (2024) : 1814-1824 . |
| APA | 吴学震 , 郑含芳 , 蒋宇静 , 关振长 , 缪圆冰 . 锚固充填节理剪切试验与数值模拟研究 . | 工程地质学报 , 2024 , 32 (5) , 1814-1824 . |
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The horizontal well technology was successfully applied in the Chinese second natural gas hydrate (NGH) field test in the Shenhu area of the South China Sea in 2020. However, the results show that the threshold for commercial exploitation has not been broken, judging from daily gas production and cumulative gas production. Consequently, the paper presents the effects of dual horizontal well systems for exploitation in this area. The NGH reservoir model in the Shenhu area was established with CMG software. The influence of various layout options and various spacing of dual horizontal well systems on the production capacity was investigated. Further, we simulated the production effect of dual horizontal well systems joint auxiliary measures, such as well wall heating, heat injection, etc. The results show that the production capacity of dual horizontal well systems increased by about 1.27 similar to 2.67 times compared with that of a single horizontal well. The daily gas production will drop significantly, no matter which method was used, when exploitation lasts for about 200 d. Meanwhile, well wall heating and heat injection have limited effects on promoting production capacity. In conclusion, attention was drawn to the fact that the synergistic effect could be fully exerted to accelerate NGH dissociation when dual horizontal well systems are applied. The NGH reservoirs in the Shenhu area may be more suitable for short-term exploitation. The research results of this paper can provide a reference for the exploitation of the Shenhu area.
Keyword ：
auxiliary measures auxiliary measures dual horizontal well systems dual horizontal well systems heat injection heat injection layout options layout options natural gas hydrate natural gas hydrate spacing spacing well wall heating well wall heating
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| GB/T 7714 | Wu, Xuezhen , Guo, Gaoqiang , Ye, Hongyu et al. Application of Dual Horizontal Well Systems in the Shenhu Area of the South China Sea: Analysis of Productivity Improvement [J]. | JOURNAL OF MARINE SCIENCE AND ENGINEERING , 2023 , 11 (7) . |
| MLA | Wu, Xuezhen et al. "Application of Dual Horizontal Well Systems in the Shenhu Area of the South China Sea: Analysis of Productivity Improvement" . | JOURNAL OF MARINE SCIENCE AND ENGINEERING 11 . 7 (2023) . |
| APA | Wu, Xuezhen , Guo, Gaoqiang , Ye, Hongyu , Miao, Yuanbing , Li, Dayong . Application of Dual Horizontal Well Systems in the Shenhu Area of the South China Sea: Analysis of Productivity Improvement . | JOURNAL OF MARINE SCIENCE AND ENGINEERING , 2023 , 11 (7) . |
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Abstract ：
为清晰完整地认知隧道围岩大变形,方便后续的深入、具体研究。基于既有研究内容,将具有明显时间效应和塑性变形,产生的变形超过了规范允许的变形量且严重影响隧道工程的正常使用,最终导致隧道丧失整体结构稳定性的围岩变形现象定义为隧道围岩大变形;从变形成因角度重新划分隧道围岩大变形的类型为:膨胀型、高地应力软岩型、黄土型、高地温型和复合型;归纳总结不同类型隧道围岩大变形的变形机制、本构模型、支护理论等,并总结针对不同类型围岩大变形现象采取的控制措施和施工方法。在此过程中,针对存在的不足提出未来可能的发展趋势:1)完善隧道围岩大变形机制,并通过现场检测、模型试验与有限元分析模拟总结出隧道围岩大变形规律以及受力特点,为工程实践提供科学依据,实现大变形的精确支护。2)统一不同类型的隧道围岩大变形分级控制措施。由于工程的多变复杂和特殊性,难以总结出普适性的大变形分级控制措施,但基于大量的隧道围岩大变形案例,制定出不同类型隧道的围岩大变形分级控制措施依然具有很高的工程参考价值。
Keyword ：
变形控制措施 变形控制措施 围岩大变形 围岩大变形 大变形分类 大变形分类 理论研究 理论研究 隧道 隧道
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| GB/T 7714 | 许崇帮 , 郑子腾 , 辛红升 et al. 隧道围岩大变形分类及展望 [J]. | 隧道建设(中英文) , 2023 , 43 (S2) : 27-40 . |
| MLA | 许崇帮 et al. "隧道围岩大变形分类及展望" . | 隧道建设(中英文) 43 . S2 (2023) : 27-40 . |
| APA | 许崇帮 , 郑子腾 , 辛红升 , 缪圆冰 , 杜驹 . 隧道围岩大变形分类及展望 . | 隧道建设(中英文) , 2023 , 43 (S2) , 27-40 . |
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本发明涉及一种可调整激振输入方向的桥梁模型振动台试验装置及方法，包括底板和固定连接在底板上侧的固定盘，所述固定盘上方设有模型筒，所述模型筒底部固定连接有能相对固定盘转动的活动盘；所述模型筒内设有连接在活动盘上的桥梁模型装置。本发明可调整激振输入方向的桥梁模型振动台试验装置设计合理，使用方便，易于操作，可在振动台试验过程中调整振动方向，分析不同振动方向对结构动力特性的影响，实现包括横桥向和纵桥向在内的多角度振动输入。
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| GB/T 7714 | 邓涛 , 郑嘉勇 , 温鹏铭 et al. 可调整激振输入方向的桥梁模型振动台试验装置及方法 : CN202111254470.7[P]. | 2021-10-27 00:00:00 . |
| MLA | 邓涛 et al. "可调整激振输入方向的桥梁模型振动台试验装置及方法" : CN202111254470.7. | 2021-10-27 00:00:00 . |
| APA | 邓涛 , 郑嘉勇 , 温鹏铭 , 林聪煜 , 刘齐建 , 缪圆冰 . 可调整激振输入方向的桥梁模型振动台试验装置及方法 : CN202111254470.7. | 2021-10-27 00:00:00 . |
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本发明提出一种恒定刚度边界水压致裂试验装置，包括围压加载系统、轴压加载系统、水压加载系统、围压监测系统、轴压监测系统、水压监测系统、侧向变形测量系统、轴向变形测量系统、岩石试件和计算机控制系统。本发明实现恒定刚度边界水压致裂试验的原理是：在施加水压的过程中，计算机控制系统根据监测得到的岩石试件侧向变形计算为了保持恒定刚度所需要的围压，进而通过自动控制不断修正围压的大小，从而实现恒定刚度边界，直至试件被压裂。本发明实现了恒定刚度边界条件下的水压致裂室内模拟试验，更真实的再现岩石在工程现场的物理力学性质，为现场工程的设计和施工提供更准确的数据。
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| GB/T 7714 | 吴学震 , 邓涛 , 王刚 et al. 恒定刚度边界水压致裂试验装置 : CN202210098682.9[P]. | 2022-01-27 00:00:00 . |
| MLA | 吴学震 et al. "恒定刚度边界水压致裂试验装置" : CN202210098682.9. | 2022-01-27 00:00:00 . |
| APA | 吴学震 , 邓涛 , 王刚 , 蒋宇静 , 缪圆冰 . 恒定刚度边界水压致裂试验装置 : CN202210098682.9. | 2022-01-27 00:00:00 . |
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The limit states of a primary supporting structure were used to represent the limit states of the tunnel, and the analytical methods of Catastrophe Theory and bearing capacity were respectively used to determine the ultimate displacement values of the tunnel. The calculated results indicate that the ultimate displacement values obtained from the two methods are close to one another, and it is suggested to use the analytical method of bearing capacity, which is with explicit mechanical basis and small values. On surrounding rock, the effects of such parameters as resistance coefficient and side pressure coefficient were analyzed, and the results show that the effects of two parameters on the ultimate bearing capacity of the structure are great, but small on its ultimate displacement values. This paper proposed the determination method of the ultimate displacement values of a tunnel. The method directly correlates with the parameters of the primary supporting structure of the tunnel and is with explicit and reliable calculated results. Therefore, the application of the method can be spread to the determination of the ultimate displacement values of a tunnel in its displacement monitoring. © 2022 IEEE.
Keyword ：
Bearing capacity Bearing capacity Bearings (machine parts) Bearings (machine parts) Tunnels Tunnels
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| GB/T 7714 | Miao, Yuanbing , Yu, Yue , Zeng, Qingyou . Determination Methods of Ultimate Displacement Values of Tunnel Based on Bearing Capacity of Primary Supporting Structure [C] . 2022 : 849-855 . |
| MLA | Miao, Yuanbing et al. "Determination Methods of Ultimate Displacement Values of Tunnel Based on Bearing Capacity of Primary Supporting Structure" . (2022) : 849-855 . |
| APA | Miao, Yuanbing , Yu, Yue , Zeng, Qingyou . Determination Methods of Ultimate Displacement Values of Tunnel Based on Bearing Capacity of Primary Supporting Structure . (2022) : 849-855 . |
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Flexural toppling is one of the failure modes of anti-dip rocks, is often triggered by seismic load, occurs haphazardly under an earthquake scenario, and is characterized by high speed and extreme energy, leading to catastrophic disaster consequences and huge losses. However, there is limited literature that reveals its failure mechanisms and describes the failure surface due to earthquakes. Therefore, based on the limit equilibrium analysis method, the horizontal pseudo-static load was applied to improve the geological mechanical model under gravity only, and the stability analysis process was derived. The failure surface and failure mode of the slope under different seismic loads were analyzed. The results indicated that, with the increasing seismic load, an increase in the number of rock layers with sliding failure increased the number of rock layers with cantilever toppling failure; in contrast, the number of rock layers with overlapping toppling failure decreased. The slope toe was more prone to sliding and the slope top was more prone to cantilever toppling under an earthquake, which decreased the stability of the anti-dip rock slope.
Keyword ：
anti-dip rock slope anti-dip rock slope flexural toppling flexural toppling limit equilibrium limit equilibrium seismic load seismic load stability analysis stability analysis
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| GB/T 7714 | Zhang, Hong , Wu, Yihan , Huang, Shiting et al. Analysis of Flexural Toppling Failure of Anti-Dip Rock Slopes Due to Earthquakes [J]. | FRONTIERS IN EARTH SCIENCE , 2022 , 9 . |
| MLA | Zhang, Hong et al. "Analysis of Flexural Toppling Failure of Anti-Dip Rock Slopes Due to Earthquakes" . | FRONTIERS IN EARTH SCIENCE 9 (2022) . |
| APA | Zhang, Hong , Wu, Yihan , Huang, Shiting , Zheng, Lu , Miao, Yuanbing . Analysis of Flexural Toppling Failure of Anti-Dip Rock Slopes Due to Earthquakes . | FRONTIERS IN EARTH SCIENCE , 2022 , 9 . |
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本实用新型涉及一种可调整激振输入方向的桥梁模型振动台试验装置，包括底板和固定连接在底板上侧的固定盘，所述固定盘上方设有模型筒，所述模型筒底部固定连接有能相对固定盘转动的活动盘；所述模型筒内设有连接在活动盘上的桥梁模型装置。本实用新型可调整激振输入方向的桥梁模型振动台试验装置设计合理，使用方便，易于操作，可在振动台试验过程中调整振动方向，分析不同振动方向对结构动力特性的影响，实现包括横桥向和纵桥向在内的多角度振动输入。
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| GB/T 7714 | 邓涛 , 郑嘉勇 , 温鹏铭 et al. 可调整激振输入方向的桥梁模型振动台试验装置 : CN202122593567.2[P]. | 2021-10-27 . |
| MLA | 邓涛 et al. "可调整激振输入方向的桥梁模型振动台试验装置" : CN202122593567.2. | 2021-10-27 . |
| APA | 邓涛 , 郑嘉勇 , 温鹏铭 , 林聪煜 , 刘齐建 , 缪圆冰 . 可调整激振输入方向的桥梁模型振动台试验装置 : CN202122593567.2. | 2021-10-27 . |
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一种波形钢板与UHPC组合的装配式隧道衬砌结构，包括多节衬砌单元，所述衬砌单元包括位于隧道底部的仰拱，所述仰拱的左右两端均设置有侧墙节段，两侧墙节段顶部之间架设有拱顶节段，所述侧墙节段与拱顶节段均包括波形钢顶板以及UHPC肋板梁，所述波形钢顶板与隧道开挖面之间填充有水泥砂浆，形成隧道的初期支护，所述波形钢顶板与UHPC肋板梁之间填充有现浇混凝土，形成隧道的永久支护。本实用新型结构简单，设计合理，施工方便，可广泛应用于隧道结构中，提高施工效率和使用寿命。
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| GB/T 7714 | 缪圆冰 , 苏家战 , 邓涛 et al. 一种波形钢板与UHPC组合的装配式隧道衬砌结构 : CN202121153046.9[P]. | 2021-05-27 . |
| MLA | 缪圆冰 et al. "一种波形钢板与UHPC组合的装配式隧道衬砌结构" : CN202121153046.9. | 2021-05-27 . |
| APA | 缪圆冰 , 苏家战 , 邓涛 , 郑路 . 一种波形钢板与UHPC组合的装配式隧道衬砌结构 : CN202121153046.9. | 2021-05-27 . |
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