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学者姓名：王丽娟
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Abstract ：
Airport pavements are prone to early defects during the construction phase, and their early performance during the construction phase is significantly affected by the external temperature field. This article takes the concrete pavement of Xiamen Xiang'an New Airport as an example and uses a three-dimensional (3D) humidity simulation program for cement concrete pavement to study the evolution behavior of the early stage humidity field of the pavement in a humid and hot climate environment. The results indicate that the evolution law of the humidity field of the concrete pavement slab was consistent with the environmental field, presenting a 24 h periodic variation. The environmental field had a significant impact on the humidity of the surface layer of the pavement slab, and the humidity decreased rapidly with time. There was a humidity gradient on both the horizontal plane and the cutting plane of the slab, the horizontal humidity was concentrated from the boundary into the middle of the slab, and the sectional humidity was concentrated from the top to the bottom of the slab. Environmental parameters, construction parameters, and material and structural parameters all influenced humidity through humidity exchange or by changing the saturated vapor pressure inside the slab. The humidity field was most sensitive to environmental humidity and maintenance methods, but less sensitive to material parameters and structural parameters. Through analysis, it is advisable to avoid hot seasons, choose periods of increased environmental humidity, adopt appropriate maintenance methods during construction to reduce humidity stress on the slab, and therefore decrease early stage deterioration and improve service life.
Keyword ：
cement concrete pavement cement concrete pavement early stage early stage humid and hot climate humid and hot climate humidity field humidity field
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| GB/T 7714 | Chai, Min , Hu, Changbin , Wang, Lijuan et al. Study on the Evolution Behavior of Humidity Fields in Cement Concrete Pavements of a Coastal Airport During Early Stages in Humid and Hot Areas [J]. | MATERIALS , 2023 , 16 (16) . |
| MLA | Chai, Min et al. "Study on the Evolution Behavior of Humidity Fields in Cement Concrete Pavements of a Coastal Airport During Early Stages in Humid and Hot Areas" . | MATERIALS 16 . 16 (2023) . |
| APA | Chai, Min , Hu, Changbin , Wang, Lijuan , Chen, Tao . Study on the Evolution Behavior of Humidity Fields in Cement Concrete Pavements of a Coastal Airport During Early Stages in Humid and Hot Areas . | MATERIALS , 2023 , 16 (16) . |
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Abstract ：
Cement concrete pavement is prone to early deterioration during the construction phase, and the early performance during the construction phase is significantly affected by the external temperature and humidity field. This article selects meteorological parameters in the Fuzhou area as a typical representative of a humid and hot climate and develops a three-dimensional humidity simulation program based on Fick's law and the finite difference method to study the evolution behavior of the humidity field in early age of cement concrete pavement. It discusses the humidity distribution characteristics of road panels and analyzes the influence and sensitivity of cement type, construction conditions, and road panel structural parameters on road panel humidity. Research has shown that the evolution law of the humidity field of road panels shows a 24-h periodic change with the external environment. The environmental field has a significant impact on the surface humidity of road panels. The horizontal humidity of the panel is concentrated from the boundary to the middle of the panel, and the tangential humidity is concentrated from the top to the bottom of the panel. The humidity field of road panels is the most sensitive to environmental humidity and maintenance methods, but less sensitive to material and structural parameters. Therefore, during construction, it is possible to avoid the hot season and choose a time period when the environmental humidity increases to pour concrete. Appropriate maintenance methods are adopted to reduce the humidity stress of the panels, reduce early age deterioration, and improve their service life.
Keyword ：
cement concrete pavement cement concrete pavement early age early age hot and humid regions hot and humid regions humidity humidity
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| GB/T 7714 | Chai, Min , Wang, Lijuan , Hu, Changbin et al. Investigation into the Impact of Humidity on Early Age Cement Concrete Pavement Behavior in Hot and Humid Regions [J]. | APPLIED SCIENCES-BASEL , 2023 , 13 (18) . |
| MLA | Chai, Min et al. "Investigation into the Impact of Humidity on Early Age Cement Concrete Pavement Behavior in Hot and Humid Regions" . | APPLIED SCIENCES-BASEL 13 . 18 (2023) . |
| APA | Chai, Min , Wang, Lijuan , Hu, Changbin , Chen, Tao . Investigation into the Impact of Humidity on Early Age Cement Concrete Pavement Behavior in Hot and Humid Regions . | APPLIED SCIENCES-BASEL , 2023 , 13 (18) . |
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Based on a creep model for microprestress-solidification theory, considering the influence of material, structure and environmental parameters, a three-dimensional simulation program for early-age mechanical behavior of pavement was established, and the creep effects mechanism of three-dimensional pavement structure were analyzed. The results show that creep is a relaxation effect on early-age pavement, which significantly reduces the early-age curling and stress. The influence magnitude of creep on early-age behavior of pavement is similar to that of temperature gradient and that of edge constraint. Creep effect is also significantly affected by edge constraint, temperature gradient, humidity gradient and overall temperature conditions, and has spatial position non-uniform distribution characteristics. Under the effect of creep, the maximum relaxation position of stress is close to the middle of the restricted edge. The creep relaxation effect has significant time-dependent characteristics. It is most significant in the first 7 days and tends to be stable after 60 days. Creep relaxation effect increases significantly with temperature gradient and overall temperature increasing. Theoretical comparison shows that, ignoring the influence of temperature will underestimate the creep effect under high temperature and overestimate the creep effect under low temperature. It is recommended to use creep effect design to reduce early-age curling and stress in pavement engineering. Copyright ©2022 Engineering Mechanics. All rights reserved.
Keyword ：
Concrete pavements Concrete pavements Creep Creep Highway engineering Highway engineering Solidification Solidification Thermal gradients Thermal gradients
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| GB/T 7714 | Hu, Chang-Bin , Sun, Zeng-Hua , Wang, Li-Juan . Early-age creep effects of cement concrete pavement [J]. | Engineering Mechanics , 2022 , 39 (4) : 123-137 . |
| MLA | Hu, Chang-Bin et al. "Early-age creep effects of cement concrete pavement" . | Engineering Mechanics 39 . 4 (2022) : 123-137 . |
| APA | Hu, Chang-Bin , Sun, Zeng-Hua , Wang, Li-Juan . Early-age creep effects of cement concrete pavement . | Engineering Mechanics , 2022 , 39 (4) , 123-137 . |
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Abstract ：
为了解路面板早龄期应力性状与行为特征,基于福建夏季高温、冬季低温、隧道恒温进行了3种典型环境条件的路面板早龄期行为现场试验.采用无应力圆筒装置去除路面板温湿度无应力应变,基于应变历史结合步进法考虑徐变松弛获得路面板典型监测位置应力性状和时程.同步监测路面板早龄期温度场和整板翘曲,比较路面板早龄期应力与温度梯度、翘曲变形的相互关系.研究显示,路面板早龄期应力一般存在压应力、拉应力、应力波动循环3个阶段,应力波动循环初期存在一个松弛阶段.路面早龄期应力主动影响因素有水化放热、环境场温湿度变化、翘曲变形和重力的联合作用,初期水化热升降温效应显著,后期温度翘曲效应显著.被动影响因素有水泥混凝土早龄期行为、结构约束、边界条件等.夏季施工面板早龄期应力和翘曲量级显著高于冬季,隧道恒温条件下面板由于湿度收缩会形成板角始终向上的凹形固化翘曲.早龄期应力波动和松弛过程的存在,造成路面板初期运营的一段时间的应力与后期正常服役期并不相同,需要规避可能与设计状态不符的初期不利工况.
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| GB/T 7714 | 胡昌斌 , 孙增华 , 王丽娟 . 水泥混凝土路面早龄期应力行为试验研究 [J]. | 工程力学 , 2021 , 38 (6) : 163-174 . |
| MLA | 胡昌斌 et al. "水泥混凝土路面早龄期应力行为试验研究" . | 工程力学 38 . 6 (2021) : 163-174 . |
| APA | 胡昌斌 , 孙增华 , 王丽娟 . 水泥混凝土路面早龄期应力行为试验研究 . | 工程力学 , 2021 , 38 (6) , 163-174 . |
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Abstract ：
为了解路面板早龄期应力性状与行为特征,基于福建夏季高温、冬季低温、隧道恒温进行了3种典型环境条件的路面板早龄期行为现场试验。采用无应力圆筒装置去除路面板温湿度无应力应变,基于应变历史结合步进法考虑徐变松弛获得路面板典型监测位置应力性状和时程。同步监测路面板早龄期温度场和整板翘曲,比较路面板早龄期应力与温度梯度、翘曲变形的相互关系。研究显示,路面板早龄期应力一般存在压应力、拉应力、应力波动循环3个阶段,应力波动循环初期存在一个松弛阶段。路面早龄期应力主动影响因素有水化放热、环境场温湿度变化、翘曲变形和重力的联合作用,初期水化热升降温效应显著,后期温度翘曲效应显著。被动影响因素有水泥混凝土早龄期行...
Keyword ：
应变 应变 早龄期应力 早龄期应力 水泥混凝土路面 水泥混凝土路面 温度场 温度场 现场试验 现场试验 翘曲 翘曲
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| GB/T 7714 | 胡昌斌 , 孙增华 , 王丽娟 . 水泥混凝土路面早龄期应力行为试验研究 [J]. | 工程力学 , 2021 , 38 (06) : 163-174 . |
| MLA | 胡昌斌 et al. "水泥混凝土路面早龄期应力行为试验研究" . | 工程力学 38 . 06 (2021) : 163-174 . |
| APA | 胡昌斌 , 孙增华 , 王丽娟 . 水泥混凝土路面早龄期应力行为试验研究 . | 工程力学 , 2021 , 38 (06) , 163-174 . |
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为了解水泥混凝土路面板翘曲在早龄期阶段的行为和形成机制,设计了大量程振弦传感器监测竖向位移方法,对夏季工况14 d早龄期路面板全幅竖向变形进行了连续监测,并结合编制的专用早龄期程序进行了对应行为和形成机制理论分析.研究显示,早龄期阶段面板呈现"平整板-板角翘曲,板角翘曲-1/4板位隆起中间态翘曲,板角翘曲-1/4中间态翘曲-板中翘曲"3阶段翘曲演化行为,面板变形在早龄期阶段存在多种翘曲模式和不对称现象.早龄期翘曲与环境场、面板混凝土模量、徐变、结构约束显著相关,徐变对面板早龄期行为有显著消散作用.在板周约束和温度变形驱动不足等组合情况下,将产生1/4对角线板位隆起固化形状,形成路面板局部不平整和对应位置脱空.建议区分早龄期固化变形和早龄期固化基准参数的作用特性,通过面板支撑状态等效反映固化变形作用效应.
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| GB/T 7714 | 王丽娟 , 胡昌斌 , 孙增华 . 水泥混凝土路面板早龄期翘曲行为机制研究 [J]. | 工程力学 , 2021 , 38 (10) : 215-228 . |
| MLA | 王丽娟 et al. "水泥混凝土路面板早龄期翘曲行为机制研究" . | 工程力学 38 . 10 (2021) : 215-228 . |
| APA | 王丽娟 , 胡昌斌 , 孙增华 . 水泥混凝土路面板早龄期翘曲行为机制研究 . | 工程力学 , 2021 , 38 (10) , 215-228 . |
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Abstract ：
基于水泥混凝土路面板早龄期力学仿真,开展夏季不同施工时段、边界约束对面板固化性状的影响研究.结果显示,施工季节、昼夜温差、结构约束等显著影响固化翘曲和残余应力.面板早龄期存在典型的板角向上固化翘曲和不对称翘曲模式,面板28 d残余应力主要为板顶受拉形式.接缝约束显著减小约束边板角翘曲,增大面板板顶残余拉应力分布面积,应力峰值影响较小.研究提出零平均应力温度梯度参数表征固化翘曲和初始应力状态两方面影响,面板早龄期温度加载历史中正温度差量级、时长较大,面板早期更易形成零平均应力正温度梯度.计算早龄期性状影响效应时,28 d零平均应力温度梯度范围可考虑取值0.25～0.57℃·cm-1区间.
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| GB/T 7714 | 王丽娟 , 胡昌斌 , 孙增华 . 水泥混凝土路面板早龄期固化性状数值分析 [J]. | 福州大学学报（自然科学版） , 2021 , 49 (4) : 522-530 . |
| MLA | 王丽娟 et al. "水泥混凝土路面板早龄期固化性状数值分析" . | 福州大学学报（自然科学版） 49 . 4 (2021) : 522-530 . |
| APA | 王丽娟 , 胡昌斌 , 孙增华 . 水泥混凝土路面板早龄期固化性状数值分析 . | 福州大学学报（自然科学版） , 2021 , 49 (4) , 522-530 . |
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Abstract ：
为了解水泥混凝土路面板翘曲在早龄期阶段的行为和形成机制,设计了大量程振弦传感器监测竖向位移方法,对夏季工况14 d早龄期路面板全幅竖向变形进行了连续监测,并结合编制的专用早龄期程序进行了对应行为和形成机制理论分析。研究显示,早龄期阶段面板呈现"平整板-板角翘曲,板角翘曲-1/4板位隆起中间态翘曲,板角翘曲-1/4中间态翘曲-板中翘曲"3阶段翘曲演化行为,面板变形在早龄期阶段存在多种翘曲模式和不对称现象。早龄期翘曲与环境场、面板混凝土模量、徐变、结构约束显著相关,徐变对面板早龄期行为有显著消散作用。在板周约束和温度变形驱动不足等组合情况下,将产生1/4对角线板位隆起固化形状,形成路面板局部不平整...
Keyword ：
固化行为 固化行为 形成机制 形成机制 早龄期翘曲 早龄期翘曲 水泥混凝土路面 水泥混凝土路面 试验监测 试验监测
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| GB/T 7714 | 王丽娟 , 胡昌斌 , 孙增华 . 水泥混凝土路面板早龄期翘曲行为机制研究 [J]. | 工程力学 , 2021 , 38 (10) : 215-228 . |
| MLA | 王丽娟 et al. "水泥混凝土路面板早龄期翘曲行为机制研究" . | 工程力学 38 . 10 (2021) : 215-228 . |
| APA | 王丽娟 , 胡昌斌 , 孙增华 . 水泥混凝土路面板早龄期翘曲行为机制研究 . | 工程力学 , 2021 , 38 (10) , 215-228 . |
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Abstract ：
本实用新型提出一种用于混凝土面板全龄期湿度无线测量的装置，其特征在于，包括：采集装置、中继路由装置和接收终端装置；所述采集装置包括防水外壳，以及设置在防水外壳内的采集电路板和电池；所述采集电路板上集成有依次连接的湿度传感器、采集电路和无线模块，以及供电模块；所述供电模块连接电池；所述湿度传感器的探头伸出防水外壳，其伸出部分的外部覆盖有e‑PTFE膜并通过有机硅密封胶与防水外壳构成水密性连接；所述中继路由装置包括无线增益模块和路由模块；所述接收终端装置包括无线接收模块。其设计巧妙，高精度，稳定性好，可在高湿度环境下长时间监测混凝土面板内部湿度，且不易被外界条件扰动。
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| GB/T 7714 | 王丽娟 , 陈韬 , 胡昌斌 et al. 用于混凝土面板全龄期湿度无线测量的装置 : CN202020104756.1[P]. | 2020/1/17 . |
| MLA | 王丽娟 et al. "用于混凝土面板全龄期湿度无线测量的装置" : CN202020104756.1. | 2020/1/17 . |
| APA | 王丽娟 , 陈韬 , 胡昌斌 , 张文 , 段文康 . 用于混凝土面板全龄期湿度无线测量的装置 : CN202020104756.1. | 2020/1/17 . |
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本发明提供一种水泥路面早龄期三维全面板翘曲形状监测装置及实现方法，包括混凝土面板，所述混凝土面板下方设置有水稳基层，所述水稳基层内设置有若干个嵌入水稳基层上表面的圆柱形混凝土柱，每个圆柱形混凝土柱内部设置有由圆柱形混凝土柱内部延伸至混凝土面板的振弦式应变传感器，所述水稳基层与混凝土面板之间设有用于防止圆柱形混凝土柱及水稳基层随混凝土面板竖向变形的隔离薄膜，所述混凝土面板上设置有13个测点，每个测点上设置有振弦式应变传感器，本发明结构简单，设计巧妙，稳定性好，精度高。
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| GB/T 7714 | 王丽娟 , 胡昌斌 , 曾宇鑫 et al. 水泥路面早龄期三维全面板翘曲形状监测装置及实现方法 : CN201910464430.1[P]. | 2019/5/30 . |
| MLA | 王丽娟 et al. "水泥路面早龄期三维全面板翘曲形状监测装置及实现方法" : CN201910464430.1. | 2019/5/30 . |
| APA | 王丽娟 , 胡昌斌 , 曾宇鑫 , 孙增华 , 唐晶晶 . 水泥路面早龄期三维全面板翘曲形状监测装置及实现方法 : CN201910464430.1. | 2019/5/30 . |
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