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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5 cm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 (08) : 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 . 08 (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 (08) , 181-188 . |
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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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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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针对软基拼宽及地铁施工扰动引起邻近既有桥梁桩基病害的实际工程问题，在FLAC~(3D)软件中建立三维模型，充分考虑软土的蠕变特性和桩土间的相互作用，采用黏弹塑性Cvisc本构模型模拟各近接工程施工及桩基病害发展的全过程.在与现场实测数据对比验证后，进一步分析在不同施工工况下桩身位移与内力的响应，定量判断桥梁桩基桩身的病害情况，为后续加固设计提拱依据.计算结果表明，病害的主要原因是软基拼宽后引起淤泥层长时间的水平向蠕变，使邻近刚性桩上水平推力大增，最终导致破坏.结合工后变形尚未稳定且桥梁桩基紧邻地铁隧道的实际情况，提出桩基主动托换的病害整治方案，并进行数值模拟.
Keyword ：
Cvisc蠕变模型 Cvisc蠕变模型 数值模拟 数值模拟 桩基 桩基 路基拼宽 路基拼宽 软土地基 软土地基
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| GB/T 7714 | 缪圆冰 , 陈礼榕 , 郑路 et al. 软基拼宽引发邻近桩基病害分析及处治方案 [J]. | 福州大学学报(自然科学版) , 2022 , 50 (03) : 431-438 . |
| MLA | 缪圆冰 et al. "软基拼宽引发邻近桩基病害分析及处治方案" . | 福州大学学报(自然科学版) 50 . 03 (2022) : 431-438 . |
| APA | 缪圆冰 , 陈礼榕 , 郑路 , 林聪煜 . 软基拼宽引发邻近桩基病害分析及处治方案 . | 福州大学学报(自然科学版) , 2022 , 50 (03) , 431-438 . |
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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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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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本实用新型涉及一种装配式UHPC隧道衬砌结构，包括沿隧道纵向拼装在一起的衬砌环，所述衬砌环环向由下部的仰拱和上部的UHPC拱墙拼接而成，UHPC拱墙是由左侧UHPC节段、右侧UHPC节段和顶部UHPC节段拼接而成；所述衬砌环和外侧隧道围岩面之间的空隙中填充有外部混凝土。本实用新型装配式UHPC隧道衬砌结构设计合理，结构简单，施工方便，可缩短工期、节省施工支撑材料、改善劳动条件、提高结构尺寸精度和质量，从而提高使用寿命，可广泛应用于隧道结构中。
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| GB/T 7714 | 苏家战 , 陈宝春 , 邓涛 et al. 一种装配式UHPC隧道衬砌结构 : CN202121185458.0[P]. | 2021-05-31 . |
| MLA | 苏家战 et al. "一种装配式UHPC隧道衬砌结构" : CN202121185458.0. | 2021-05-31 . |
| APA | 苏家战 , 陈宝春 , 邓涛 , 缪圆冰 , 郑路 , 孙同庆 . 一种装配式UHPC隧道衬砌结构 : CN202121185458.0. | 2021-05-31 . |
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本实用新型涉及一种以装配式UHPC结构为底模的隧道二次衬砌，包括分别拼装在隧道坑道左侧墙节段、右侧墙节段和拱顶节段的UHPC肋板梁节段，整体形成装配式UHPC结构，作为隧道二次衬砌的底模，该底模与二次衬砌外侧钢筋网浇筑为一体。充分发挥UHPC的超高抗压强度、高抗裂性、抗渗性和抗冻融，以及高耐久性的性能，预制节段构件的尺寸精度和质量可以得到保证；洞内采用机械化拼装可缩短工期和改善劳动条件；拼装成环后可作为浇筑混凝土的免拆除模板，并承受灌浆和现浇混凝土的自重，减少内腔钢筋骨架绑扎工作量，节省大量的支撑材料和劳力。同时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 | 苏家战 , 陈宝春 , 邓涛 et al. 以装配式UHPC结构为底模的隧道二次衬砌 : CN202121173098.2[P]. | 2021-05-28 . |
| MLA | 苏家战 et al. "以装配式UHPC结构为底模的隧道二次衬砌" : CN202121173098.2. | 2021-05-28 . |
| APA | 苏家战 , 陈宝春 , 邓涛 , 缪圆冰 , 郑路 , 胡文旭 . 以装配式UHPC结构为底模的隧道二次衬砌 : CN202121173098.2. | 2021-05-28 . |
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