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学者姓名：刘毓氚
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Abstract ：
Single shell segmental lining can withstand a maximum water head of about 50 m. If the water pressure exceeds this value, it is necessary to partially reduce groundwater pressure acting behind the tunnel lining.This paper presents a novel TBM tunnel drainage technology that employs adjustable pressure valves to regulate the volume of incoming water. This method not only reduces the impact of tunnel drainage on the surrounding groundwater environment but also effectively decreases the water pressure behind the lining, lowering the risk of structural damage and enhancing the load-bearing capacity of the lining. This represents an integration of prevention and drainage in the engineering concept of groundwater control.The study commenced with field experiments in the Daxiang Mountain Tunnel of the Fuzhou Intercity Railway, focusing on the effects of different drainage hole spacings and pressure valve settings on tunnel water inflow, pressure behind segmental linings, and strain on the linings' inner surfaces. A numerical model was subsequently constructed to compare and validate these field monitoring results, which demonstrated a high level of agreement. Finally, a parametric analysis was conducted, and the results indicate: (1) Although increasing the spacing between drainage holes effectively controls groundwater discharge, the resulting higher water gradient near these holes significantly increases bending moments at the foot of the side wall and invert of the lining, thus elevating the risk of structural disorders in the lining. (2) At segmental linings with drainage holes spaced at 3.6 m, the installation of pressure valves set to 400 kPa reduced the drainage volume from 2.18 m3/(D center dot m) to 1.56 m3/(D center dot m) compared to the full drainage scenario. This reduction satisfies the groundwater conservation requirements of the Daxiang Mountain area and significantly lowers the risk of structural damage to the lining caused by high water gradients near the drainage holes. Consequently, the load-bearing capacity of the segmental tunnel structure is effectively utilized. The research outcomes of this paper can offer guidance for the drainage countermeasure design in similar TBM tunnel projects.
Keyword ：
Field Experiments Field Experiments Groundwater Inflow Groundwater Inflow Groundwater Pressure Relief Groundwater Pressure Relief Pressure Valve Pressure Valve Single shield TBM Single shield TBM
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| GB/T 7714 | Zeng, Yuan-Chi , Ji, Lu-Ling , Liu, Yu-Chuan et al. Numerical analysis and field experiments of a new drainage system with pressure valves for single shield TBM [J]. | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY , 2025 , 155 . |
| MLA | Zeng, Yuan-Chi et al. "Numerical analysis and field experiments of a new drainage system with pressure valves for single shield TBM" . | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY 155 (2025) . |
| APA | Zeng, Yuan-Chi , Ji, Lu-Ling , Liu, Yu-Chuan , Feng, S. . Numerical analysis and field experiments of a new drainage system with pressure valves for single shield TBM . | TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY , 2025 , 155 . |
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Abstract ：
针对隧道主动控制式防排水系统难以实现对排水量和水压的动态控制、易造成隧道开裂渗漏的问题,提出在环向排水盲管处增设压力阀,控制排水量和外水压力,并推导隧道排水量的计算公式.基于稳定渗流场基本微分方程,运用保角变换方法推导围岩渗流场公式,建立包含环向排水盲管间距和泄水压力的隧道渗流计算模型,推导隧道排水量及二衬结构外水压力的计算公式.通过退化解和数值模拟方法,验证解析解的合理性.在此基础上,建立增设压力阀的隧道防排水设计方法.结果表明:土工织物渗透系数和排水管间距对水压和流量有很大影响,建议土工织物渗透系数不小于 500 μm/s,排水盲管的间距可综合泄水压力进行设置.与现有主动控制式防排水系统相比,增设压力阀可以减少灌浆圈的厚度和施工成本.
Keyword ：
地下水压力 地下水压力 涌水量 涌水量 解析解 解析解 隧道工程 隧道工程 隧道防排水系统 隧道防排水系统
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| GB/T 7714 | 纪禄凌 , 游玮 , 李晓逸 et al. 增设压力阀对隧道防排水影响 [J]. | 隧道与地下工程灾害防治 , 2024 , 6 (3) : 92-102 . |
| MLA | 纪禄凌 et al. "增设压力阀对隧道防排水影响" . | 隧道与地下工程灾害防治 6 . 3 (2024) : 92-102 . |
| APA | 纪禄凌 , 游玮 , 李晓逸 , 曾原驰 , 刘毓氚 , 张铠 . 增设压力阀对隧道防排水影响 . | 隧道与地下工程灾害防治 , 2024 , 6 (3) , 92-102 . |
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Balance of the groundwater and ecology is crucial for controlled discharge. However, regarding the segments of tunnel boring machines (TBMs) under high water pressure, the stability of the lining structure is often reduced by excessive drain holes required to achieve this balance. The large discharge of pinholes can easily have severe consequences, such as the lowering of the groundwater table, drying of springs, and vegetation wilting. Thus, in this study, according to the fluid-structure coupling theory, a new drainage design for TBM segments was developed by considering a mountain tunnel subject to a high water pressure as a case study. The evolution characteristics, including the external water pressure of the lining, discharge volume of the segment, and groundwater-table drawdown, were investigated via numerical modeling with drain holes and pinholes. The results indicated that the optimal design parameters of drainage segments for the project case were as follows: a circumferential spacing angle and longitudinal number on one side of a single ring of 51 degrees and 2, respectively, for the drain holes and an inclination angle and length of 46.41 degrees and 0.25 times the grouting thickness, respectively, for the pin holes.
Keyword ：
drain hole drain hole groundwater table drawdown groundwater table drawdown high water pressure high water pressure pinhole pinhole TBM segment TBM segment
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| GB/T 7714 | Lu, Yao , Huang, Ming , Chen, Zhijie et al. Drainage design combining drain holes and pinholes for tunnel boring machine segments subject to high water pressure [J]. | FRONTIERS OF STRUCTURAL AND CIVIL ENGINEERING , 2024 , 17 (11) : 1723-1738 . |
| MLA | Lu, Yao et al. "Drainage design combining drain holes and pinholes for tunnel boring machine segments subject to high water pressure" . | FRONTIERS OF STRUCTURAL AND CIVIL ENGINEERING 17 . 11 (2024) : 1723-1738 . |
| APA | Lu, Yao , Huang, Ming , Chen, Zhijie , Zeng, Zisheng , Liu, Yuchuan , Du, Guangzhao . Drainage design combining drain holes and pinholes for tunnel boring machine segments subject to high water pressure . | FRONTIERS OF STRUCTURAL AND CIVIL ENGINEERING , 2024 , 17 (11) , 1723-1738 . |
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经断层区的富水山岭隧道,施工过程中常遇突水和涌水,造成施工停滞和地下水流失.为探究断层区注浆对涌水量的影响,基于复合衬砌式的山岭隧道,建立断层区隧道涌水量简化模型,在空间上采用等效断层方法,利用镜像法将断层作为补给边界,推导考虑注浆圈作用下深度埋设隧道涌水量公式,得到了隧道涌水量与注浆圈厚度、注浆圈相对渗透系等参数之间的关系.通过退化解、数值模型共同验证了该方法的及半解析解的适用性和正确性,误差在可接受范围内.对隧道涌水量进行地下水位高度、衬砌厚度和注浆圈等进行参数分析工作.研究结果表明:断层区的富水山岭隧道涌水量主要控制因素为:注浆圈厚度、注浆圈相对渗透系数及衬砌厚度.地下水位不变的条件下,涌水量受断层与隧道的距离影响较大;衬砌厚度越大堵水的作用越强,断层区内隧道的涌水量越小.注浆圈相对渗透系数对涌水量影响为敏感;围岩渗透系数与注浆圈渗透系数的比值小于 50 时涌水量与注浆圈厚度之间呈现线性关系,而注浆圈渗透系数较低时,注浆圈的厚度对涌水量的影响比较显著.对于山岭隧道的防排水设计而言,在保证注浆圈厚度的情况下,应优先考虑优化注浆材料的渗透性能,以实现更为高效的地下水控制.该研究成果旨在为设计和施工实践提供参考,以便于隧道穿越断层堵水注浆的研究.
Keyword ：
注浆圈 注浆圈 涌水量 涌水量 渗流场 渗流场 镜像法 镜像法 隧道工程 隧道工程
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| GB/T 7714 | 田志莹 , 纪禄凌 , 李晓逸 et al. 考虑注浆圈作用下断层区隧道涌水量计算 [J]. | 公路交通科技 , 2024 , 41 (12) : 198-205 . |
| MLA | 田志莹 et al. "考虑注浆圈作用下断层区隧道涌水量计算" . | 公路交通科技 41 . 12 (2024) : 198-205 . |
| APA | 田志莹 , 纪禄凌 , 李晓逸 , 刘毓氚 , 张旭光 . 考虑注浆圈作用下断层区隧道涌水量计算 . | 公路交通科技 , 2024 , 41 (12) , 198-205 . |
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Abstract ：
Balance of the groundwater and ecology is crucial for controlled discharge.However,regarding the segments of tunnel boring machines(TBMs)under high water pressure,the stability of the lining structure is often reduced by excessive drain holes required to achieve this balance.The large discharge of pinholes can easily have severe consequences,such as the lowering of the groundwater table,drying of springs,and vegetation wilting.Thus,in this study,according to the fluid-structure coupling theory,a new drainage design for TBM segments was developed by considering a mountain tunnel subject to a high water pressure as a case study.The evolution characteristics,including the external water pressure of the lining,discharge volume of the segment,and groundwater-table drawdown,were investigated via numerical modeling with drain holes and pinholes.The results indicated that the optimal design parameters of drainage segments for the project case were as follows:a circumferential spacing angle and longitudinal number on one side of a single ring of 51°and 2,respectively,for the drain holes and an inclination angle and length of 46.41°and 0.25 times the grouting thickness,respectively,for the pin holes.
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| GB/T 7714 | Yao LU , Ming HUANG , Zhijie CHEN et al. Drainage design combining drain holes and pinholes for tunnel boring machine segments subject to high water pressure [J]. | 结构与土木工程前沿：英文版 , 2023 , (11) : 1723-1738 . |
| MLA | Yao LU et al. "Drainage design combining drain holes and pinholes for tunnel boring machine segments subject to high water pressure" . | 结构与土木工程前沿：英文版 11 (2023) : 1723-1738 . |
| APA | Yao LU , Ming HUANG , Zhijie CHEN , Zisheng ZENG , Yuchuan LIU , Guangzhao DU . Drainage design combining drain holes and pinholes for tunnel boring machine segments subject to high water pressure . | 结构与土木工程前沿：英文版 , 2023 , (11) , 1723-1738 . |
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Abstract ：
提出路面结构水平向增强排水系统，实现在非饱和条件下排水，抑制水分进入路基土壤，并设置试验段和对照段进行现场试验.结果表明：在试验段，路基含水量波动幅度为10％～20％； 在对照段，波动幅度为50％～60％，降雨影响更显著.通过数值分析发现，使用该系统的路面结构能减少地表变形量，并缓解毛细阻滞效应，防止水分进入路基土壤.通过对碎石垫层材料进行参数分析，确立最佳厚度为10 cm.随着碎石材料的α值、n 值和e0 值的增大，路面结构中水分积聚程度会先增大而后减少.
Keyword ：
水力耦合数值分析 水力耦合数值分析 水平向增强排水 水平向增强排水 现场试验 现场试验 路面结构 路面结构 非饱和渗流 非饱和渗流
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| GB/T 7714 | 刘毓氚 , 李樽 , 张川 et al. 路面结构水平向增强排水系统现场试验及水力耦合数值分析 [C] //第十届全国再生混凝土学术交流会暨第六届全国建筑固废学术交流会论文集 . 2023 : 163-170 . |
| MLA | 刘毓氚 et al. "路面结构水平向增强排水系统现场试验及水力耦合数值分析" 第十届全国再生混凝土学术交流会暨第六届全国建筑固废学术交流会论文集 . (2023) : 163-170 . |
| APA | 刘毓氚 , 李樽 , 张川 , 黄成锋 . 路面结构水平向增强排水系统现场试验及水力耦合数值分析 第十届全国再生混凝土学术交流会暨第六届全国建筑固废学术交流会论文集 . (2023) : 163-170 . |
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本发明提供了一种应用于生活垃圾填埋场的促进截流排水与填埋气均匀分布的毛细阻滞型覆盖层结构，覆盖层结构包括碎石层(1)、导排盲沟(3)、碎石垄(4)、细粒土层(6)、土工膜(2)以及土工织物(5)，碎石垄根据计算的导排长度分段铺设。该覆盖层在降雨条件下利用细粒土层与碎石层界面形成的毛细阻滞作用阻滞雨水入渗，使水分沿着界面运移至碎石垄处；毛细界面使得碎石垄侧壁起到截流作用，水分累积在碎石垄侧壁的底部，最终击穿毛细界面下渗至导排盲沟排出覆盖层，以此减少渗滤液产生；同时甲烷可通过碎石垄进入细粒土层，促进甲烷在覆盖层中均匀分布，避免甲烷在坡顶集中排放，从而提升覆盖层中微生物甲烷氧化能力，减少甲烷排放量。
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| GB/T 7714 | 冯嵩 , 王冲 , 刘毓氚 et al. 促进截流排水与填埋气均匀分布的毛细阻滞型覆盖层 : CN202210767892.2[P]. | 2022-06-30 00:00:00 . |
| MLA | 冯嵩 et al. "促进截流排水与填埋气均匀分布的毛细阻滞型覆盖层" : CN202210767892.2. | 2022-06-30 00:00:00 . |
| APA | 冯嵩 , 王冲 , 刘毓氚 , 刘红位 . 促进截流排水与填埋气均匀分布的毛细阻滞型覆盖层 : CN202210767892.2. | 2022-06-30 00:00:00 . |
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本实用新型涉及一种考虑上覆压力和渗流路径的土工织物排水性能实验装置，涉及考虑上覆荷载和入渗率的土工合成材料综合排水性能、土工合成材料‑土体界面渗透特性的室内试验技术，包括用于装填试验土体的模型箱，所述模型箱的上方设置有用于向试验土体施加压力的上覆压力加载系统，所述上覆压力加载系统连接有向其提供气压力的数据采集及控制系统，所述模型箱上还连接有用于均匀且可控的向试验土体表面施加渗流区边界条件的入渗率控制系统。该实验装置可以模拟实际工程渗流路径和考虑周围土体的影响，实验研究反映实际渗流路径、考虑上覆压力和水力梯度的土工织物综合排水性能。
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| GB/T 7714 | 刘毓氚 , 黄耀辉 , 李樽 et al. 考虑上覆压力和渗流路径的土工织物排水性能实验装置 : CN202221755312.X[P]. | 2022-07-09 . |
| MLA | 刘毓氚 et al. "考虑上覆压力和渗流路径的土工织物排水性能实验装置" : CN202221755312.X. | 2022-07-09 . |
| APA | 刘毓氚 , 黄耀辉 , 李樽 , 黄成锋 , 李道松 . 考虑上覆压力和渗流路径的土工织物排水性能实验装置 : CN202221755312.X. | 2022-07-09 . |
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针对传统的排水措施仅限于排除土体饱和条件下水分而无法排除非饱和状态下积水的问题,提出由水力传导层、防渗层和隔离层组成的S型复合排水材料新型路面结构排水系统.首先,开展室内模型试验,在人工降雨条件下监测基层和路基的基质吸力及体积含水量的变化;其次,采用数值软件模拟室内试验情况来验证模型的准确性;最后,探究水力传导层土工织物参数变化对其排水能力的影响.结果表明:新型路面排水系统能够快速有效地排除入渗水,试验过程中基层始终处于非饱和状态,路基土的吸力和体积含水量始终保持在初始值.随着Van Genuchten参数a值和饱和渗透率的增大,土工织物与土壤接触面形成的毛细屏障越弱,排水越快,建议a值取10 kPa左右,饱和渗透系数取0.01～0.10 m·s-1,而土工织物厚度对毛细屏障的影响并不显著,建议厚度取10～15 mm为宜.
Keyword ：
参数分析 参数分析 复合土工合成排水材料 复合土工合成排水材料 模型试验 模型试验 路面结构 路面结构 非饱和渗流 非饱和渗流
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| GB/T 7714 | 刘毓氚 , 张川 . 路面结构S型复合土工材料排水系统性能分析 [J]. | 福州大学学报（自然科学版） , 2021 , 49 (2) : 245-253 . |
| MLA | 刘毓氚 et al. "路面结构S型复合土工材料排水系统性能分析" . | 福州大学学报（自然科学版） 49 . 2 (2021) : 245-253 . |
| APA | 刘毓氚 , 张川 . 路面结构S型复合土工材料排水系统性能分析 . | 福州大学学报（自然科学版） , 2021 , 49 (2) , 245-253 . |
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Biochar has been found to be a potentially suitable amendment for landfill cover material and agricultural soil. The addition of biochar can improve the physical (e.g., adsorption capacity) and hydrological properties (e.g., water/gas permeability) of soil. However, no experimental study is available about the effect of biochar content (BC) on the gas diffusion coefficient (D-P) of soil. The present study investigated the effect of BC on D-P under different degree of compaction (DOC; 85%, 90%, and 95%) and soil air contents (SAC; 5%, 10%, and 15%). It was found that DOC and BC had negligible effects on D-P when SAC was low (similar to 5%). In contrast, when the SAC was relatively high (similar to 15%), soil with DOC of 85% had the largest D-P for BC ranging from 0 to 15% (w/w). Only when the SAC was large (similar to 15%), the addition of biochar generally increased D-P.
Keyword ：
Biochar-amended soil Biochar-amended soil Degree of compaction Degree of compaction Gas diffusion coefficient Gas diffusion coefficient Pore characteristics Pore characteristics Soil air content Soil air content
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| GB/T 7714 | Chen, Fu Quan , Zhao, Neng Kai , Feng, Song et al. Effects of biochar content on gas diffusion coefficient of soil with different compactness and air contents [J]. | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH , 2020 . |
| MLA | Chen, Fu Quan et al. "Effects of biochar content on gas diffusion coefficient of soil with different compactness and air contents" . | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2020) . |
| APA | Chen, Fu Quan , Zhao, Neng Kai , Feng, Song , Liu, Hong Wei , Liu, Yu Chuan . Effects of biochar content on gas diffusion coefficient of soil with different compactness and air contents . | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH , 2020 . |
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