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学者姓名：张向向
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以翠屏隧道一号斜井地下联络风道为依托,采用数值模拟方法对零跨距立体交叉隧道施工全过程进行系统分析,探究零跨距立体交叉隧道受力变形特征,揭示斜井与隧道主洞的开挖顺序及开挖方式等因素的影响机制.结果表明:(1)开挖顺序对隧道受力变形特征具有显著影响,各工况下隧道变形均处于容许值内,但在"先下后上"工序下交叉区域衬砌的最大拉应力及最大压应力均小于"先上后下"工序;(2)斜井开挖方式仅对斜井主应力分布及底部变形产生影响,且斜井应力及底部变形随台阶长度增大而减小;(3)主洞开挖方式对衬砌受力变形影响作用较为显著,对交叉区域中心附近的衬砌进行加强处理,能够显著降低该区域最终阶段的应力及变形,保证施工安全.研究成果可为深埋零跨距立体交叉隧道及类似工程的安全施工提供借鉴.
Keyword ：
数值模拟 数值模拟 施工方式 施工方式 稳定性 稳定性 立体交叉隧道 立体交叉隧道 零跨距 零跨距
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| GB/T 7714 | 廖大刚 , 张向向 , 徐文杰 . 深埋零跨距立体交叉隧道稳定性及影响机制研究 [J]. | 公路 , 2025 , 70 (2) : 458-466 . |
| MLA | 廖大刚 等. "深埋零跨距立体交叉隧道稳定性及影响机制研究" . | 公路 70 . 2 (2025) : 458-466 . |
| APA | 廖大刚 , 张向向 , 徐文杰 . 深埋零跨距立体交叉隧道稳定性及影响机制研究 . | 公路 , 2025 , 70 (2) , 458-466 . |
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为获得新建盾构隧道下穿对既有运营隧道的影响规律,以厦门地铁4号线下穿既有运营公路隧道为例,利用数值模拟软件Midas GTS NX模拟盾构隧道左右线分别下穿既有运营隧道全过程,并探究下穿隧道角度等因素对运营隧道力学行为的影响,研究结果表明:随着盾构隧道不断开挖,既有隧道沉降量不断增大,但既有隧道沉降仅在盾构隧道开挖至运营隧道正下方时才会发生显著改变;既有隧道的最终沉降会随着下穿隧道角度的减小而增大.研究结果可为相似工程提供科学的参考依据.
Keyword ：
下穿 下穿 变形规律 变形规律 数值模拟 数值模拟 盾构隧道 盾构隧道 运营隧道 运营隧道
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| GB/T 7714 | 顾凯 , 张向向 , 陈必港 . 新建盾构隧道下穿对既有运营隧道的影响分析 [J]. | 土工基础 , 2025 , 39 (1) : 1-4 . |
| MLA | 顾凯 等. "新建盾构隧道下穿对既有运营隧道的影响分析" . | 土工基础 39 . 1 (2025) : 1-4 . |
| APA | 顾凯 , 张向向 , 陈必港 . 新建盾构隧道下穿对既有运营隧道的影响分析 . | 土工基础 , 2025 , 39 (1) , 1-4 . |
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Tight sandstone gas reservoirs can potentially be developed more efficiently with the use of liquid nitrogen (LN2) fracturing. In order to evaluate the effects of LN2 freeze-thaw on the physical and mechanical properties, as well as the failure behavior of sandstone, the research involved conducting a range of experiments and numerical simulations on sandstone samples subjected to various LN2 treatment conditions. The results indicated that the freeze-thaw process had a detrimental effect on the physical and mechanical properties of the sandstone, leading to varied degrees of weakening. The reduction percentages of tensile strength and fracture toughness, which are two key indicators, were found to be 14 % and 21.4 % respectively. Furthermore, there were the bigger degree of volume fracture, multiple branching and tortuous macroscopic cracks and macro fracture surface with larger roughness (increased by15 %) in the freeze-thaw sandstone after destruction. The physical mechanical properties of the freezing sandstone were significantly enhanced, but the complexity of the tensile failure path increased. Numerical simulations indicate that a large temperature gradient leads to the formation of damage zones within the sandstone matrix, and microscopic observations show a significant increase in the length and width of microcracks within the matrix. This indicates that the low temperature of LN2 fully releases the damage potential of initial defects in sandstone, the damage area participates in the formation of crack propagation paths and increases the randomness of path direction selection, which increases the degree of sandstone volume fracture. The research results are anticipated to offer a scientific foundation and data references for the efficient development of tight sandstone gas resources.
Keyword ：
Damage Damage Fracture characteristics Fracture characteristics Liquid nitrogen cooling Liquid nitrogen cooling Mechanical degradation Mechanical degradation Temperature gradient Temperature gradient
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| GB/T 7714 | Su, Shanjie , Wang, Shengcheng , Hou, Peng et al. Investigate on mechanical properties and fracture characteristics of sandstone under different liquid nitrogen treatment states [J]. | GEOENERGY SCIENCE AND ENGINEERING , 2025 , 250 . |
| MLA | Su, Shanjie et al. "Investigate on mechanical properties and fracture characteristics of sandstone under different liquid nitrogen treatment states" . | GEOENERGY SCIENCE AND ENGINEERING 250 (2025) . |
| APA | Su, Shanjie , Wang, Shengcheng , Hou, Peng , Du, Menglin , Ren, Yongjie , Teng, Teng et al. Investigate on mechanical properties and fracture characteristics of sandstone under different liquid nitrogen treatment states . | GEOENERGY SCIENCE AND ENGINEERING , 2025 , 250 . |
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Liquid nitrogen (LN2) fracturing has been proposed to be used in unconventional gas engineering, including shale reservoirs. However, the effect of LN2 cooling on the fracture behaviors of bedding shale has not been well studied. In this study, three-point bending tests were conducted on shale samples at room temperature and under LN2 cooling condition, respectively. Different bedding angles were considered in these tests. The phenomenon of acoustic emission was monitored during the fracture initiation and propagation of bedding shale. The results showed that the tensile strength, fracture toughness, bending elastic modulus and fracture energy decreased with the increase of bedding angle under the same temperature condition, but the bedding angle has no significant effect on energy storage ratio and speed. There was a linear relationship between the tensile strength and fracture toughness of bedding shale. The crack initiation was inconsistent with the loading reference line except in 90 degrees bedding shale, and then turned to the direction parallel to the loading reference line, resulting in various fracture morphology of bedding shale. The acoustic emission signals were mainly concentrated in the failure stage because of the severe brittleness of bedding shale. Under LN2 cooling condition, the tensile strength, fracture toughness, bending elastic modulus, energy storage ratio, fracture energy and AE cumulative ringing counts of bedding shale with the same bedding angle significantly increased, but the energy storage speed decreased. The crack length along bedding direction was longer and the crack inflection point was clearer than those of bedding shale at room temperature.
Keyword ：
Anisotropy Anisotropy Bedding shale Bedding shale Fracture behaviors Fracture behaviors Fracture toughness Fracture toughness Liquid-nitrogen Liquid-nitrogen Tensile strength Tensile strength Three-point bending test Three-point bending test
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| GB/T 7714 | Zhang, Xiangxiang , Wu, Shaoyan , Liu, Chengyu et al. An experimental investigation into the effect of liquid nitrogen cooling on fracture behaviors of bedding shale [J]. | THEORETICAL AND APPLIED FRACTURE MECHANICS , 2025 , 136 . |
| MLA | Zhang, Xiangxiang et al. "An experimental investigation into the effect of liquid nitrogen cooling on fracture behaviors of bedding shale" . | THEORETICAL AND APPLIED FRACTURE MECHANICS 136 (2025) . |
| APA | Zhang, Xiangxiang , Wu, Shaoyan , Liu, Chengyu , Su, Shanjie . An experimental investigation into the effect of liquid nitrogen cooling on fracture behaviors of bedding shale . | THEORETICAL AND APPLIED FRACTURE MECHANICS , 2025 , 136 . |
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This study focuses on the calcareous cemented conglomerate on the side wall of the Zhoukoudian Ape Man Cave site in Beijing. We analyzed the change patterns of cracks in grotto rock under natural conditions using statistical analysis of continuous monitoring data from 12 rock fracture measurement points for 7 years and environmental monitoring data. The results indicated that: (1) Under natural conditions, rock fracture width exhibited seasonal and periodic variations, which can be predicted using autoregressive integrated moving average (ARIMA) model. The ARIMA (2, 1, 1) model has the highest fitting accuracy. (2) The width of rock fractures showed a negative correlation with ambient temperature and relative humidity, with a stronger correlation with temperature. Changes in fracture width lagged behind changes in temperature and relative humidity, with a higher lag correlation and shorter lag time for temperature compared to relative humidity. (3) The degree of correlation and lag correlation between rock fracture width and ambient temperature followed the trend of room-temperature > high-temperature > low-temperature > extremely-low-temperature. The lag time followed the trend of extremely-low-temperature > low-temperature>high-temperature. Additionally, more stable relative humidity of the surroundings indicated a higher correlation. (4) At a constant, the width of rock fractures increased gradually over time, following an approximate exponential growth or asymptotic distribution. (5) At the same temperature, more stable relative humidity corresponded to a slower increase in rock fracture width over time. Under natural conditions, lower ambient temperatures led to a rapid increase in rock fracture width over time. These findings enhance our understanding of the expansion patterns of cracks in grotto rock under natural conditions. Moreover, they provide a reference framework for predicting crack changes in the preventive conservation of ancient rock sites, caves, and stone carvings in temperate monsoon climate regions. © 2024 Biodiversity Research Center Academia Sinica. All rights reserved.
Keyword ：
Ape Man Cave Ape Man Cave correlation correlation relative humidity relative humidity rock cracks rock cracks temperature temperature
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| GB/T 7714 | Liu, C.-Y. , Xu, Z.-Y. , Wu, C.-Y. et al. Changes in width of cracks in grotto rock under natural conditions; [自然条件下石窟岩石裂缝宽度的变化规律] [J]. | Rock and Soil Mechanics , 2024 , 45 (10) : 3105-3116 . |
| MLA | Liu, C.-Y. et al. "Changes in width of cracks in grotto rock under natural conditions; [自然条件下石窟岩石裂缝宽度的变化规律]" . | Rock and Soil Mechanics 45 . 10 (2024) : 3105-3116 . |
| APA | Liu, C.-Y. , Xu, Z.-Y. , Wu, C.-Y. , Zhang, X.-X. , Zheng, J. . Changes in width of cracks in grotto rock under natural conditions; [自然条件下石窟岩石裂缝宽度的变化规律] . | Rock and Soil Mechanics , 2024 , 45 (10) , 3105-3116 . |
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本文指出农光互补光伏发电系统通过在农田中布置光伏发电板的方式,有效提高了土地的资源利用率,应用前景广阔;然而作为光伏组件的支撑系统,其支架基础的选型依据和标准尚不统一.基于此,本文对比分析了农光互补光伏支架的常用基础类型,构建了支架基础选型的关键评价指标体系,并采用层次分析法对各指标进行了权重分析,探究了农光互补光伏支架的最佳基础类型.研究成果可为类似光伏系统支架选型提供科学依据和支撑.
Keyword ：
关键评价指标 关键评价指标 农光互补 农光互补 基础选型 基础选型 层次分析法 层次分析法
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| GB/T 7714 | 孙琦 , 郑川 , 王学恒 et al. 基于层次分析法的农光互补光伏支架基础选型研究 [J]. | 科技创新与生产力 , 2024 , 45 (10) : 40-45 . |
| MLA | 孙琦 et al. "基于层次分析法的农光互补光伏支架基础选型研究" . | 科技创新与生产力 45 . 10 (2024) : 40-45 . |
| APA | 孙琦 , 郑川 , 王学恒 , 季晓龙 , 张向向 . 基于层次分析法的农光互补光伏支架基础选型研究 . | 科技创新与生产力 , 2024 , 45 (10) , 40-45 . |
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周口店猿人遗址属石灰岩洞穴，暴雨条件下产生的洪水会导致其内部发生一定程度的破坏。利用ArcGis对周口店猿人遗址进行水文分析，划定不同的集水区。在此基础上，根据下垫面不同选定合理参数，使用推理公式法对周口店猿人遗址进行设计洪水计算，并验证其合理性。计算结果可为周口店猿人遗址预防性保护、流量监测点布置提供参考。
Keyword ：
周口店猿人遗址 周口店猿人遗址 推理公式法 推理公式法 洪水计算 洪水计算
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| GB/T 7714 | 何锡阳 , 李河 , 张向向 . 推理公式法在周口店遗址洪水设计中的应用 [J]. | 海河水利 , 2024 , 4 (02) : 71-74 . |
| MLA | 何锡阳 et al. "推理公式法在周口店遗址洪水设计中的应用" . | 海河水利 4 . 02 (2024) : 71-74 . |
| APA | 何锡阳 , 李河 , 张向向 . 推理公式法在周口店遗址洪水设计中的应用 . | 海河水利 , 2024 , 4 (02) , 71-74 . |
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农光互补工程在一定程度上提高了光能利用效率，节约了土地资源与水资源，降低了能源消耗，促进了农业的可持续发展。为保证农光互补工程的设计及施工开展顺利，需要进行岩土工程勘察以关键的地质岩土信息获取。文章依托楚歌新能源当阳市庙前镇孟起99 MW农光互补光伏电站工程实例，根据农光互补工程的特点，分析了其工程建设条件，提出了相应的岩土工程勘察方法，完整呈现了现场勘察过程与结果，解决了此类农光互补项目前期岩土地质勘察问题。
Keyword ：
光伏电站 光伏电站 农光互补 农光互补 地质勘察 地质勘察 地质工程条件 地质工程条件 岩土工程勘察 岩土工程勘察
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| GB/T 7714 | 陈亮 , 王学恒 , 张泽渔 et al. 农光互补工程岩土工程勘察方法探讨与评价 [J]. | 工程技术研究 , 2024 , 9 (03) : 197-199 . |
| MLA | 陈亮 et al. "农光互补工程岩土工程勘察方法探讨与评价" . | 工程技术研究 9 . 03 (2024) : 197-199 . |
| APA | 陈亮 , 王学恒 , 张泽渔 , 张向向 . 农光互补工程岩土工程勘察方法探讨与评价 . | 工程技术研究 , 2024 , 9 (03) , 197-199 . |
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In South China, due to climatic factors, highly weathered granite is distributed across a large area and easily disintegrates after encountering water, causing many geological disasters and other problems. To determine the disintegration mechanism of highly weathered granite in South China, disintegration tests were carried out on highly weathered granite in the Fuzhou area under different immersion durations, cycle times, and flow rates, with the help of a self-designed disintegration test device. Moreover, the disintegration mechanism of the highly weathered granite was revealed using nuclear magnetic resonance (NMR) technology. The results demonstrated an increase in the cumulative relative disintegration with prolonged immersion time and the number of dry-wet cycles. Beyond a certain flow rate, the cumulative relative disintegration amount stabilized. There was a strong correlation between the steady disintegration rate and immersion time (or dry-wet cycles). The disintegration process of the highly weathered granite was divided into three stages: rapid, moderate, and stable disintegration. Notably, disintegration primarily occurred around the large pores. This study revealed that the variation in the immersion time (or wet-dry-scouring cycles) was fundamentally linked to changes in the relative volume of the large pores in the rock samples. These findings provide valuable insights for predicting and mitigating surface disasters on highly weathered granite slopes.
Keyword ：
disintegration disintegration disintegration steady flow rate disintegration steady flow rate dry-wet cycles dry-wet cycles highly weathered granite highly weathered granite immersion time immersion time
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| GB/T 7714 | He, Xiyang , Liu, Chengyu , Zhang, Xiangxiang et al. Disintegration Characteristics of Highly Weathered Granite under the Influence of Scouring [J]. | WATER , 2024 , 16 (3) . |
| MLA | He, Xiyang et al. "Disintegration Characteristics of Highly Weathered Granite under the Influence of Scouring" . | WATER 16 . 3 (2024) . |
| APA | He, Xiyang , Liu, Chengyu , Zhang, Xiangxiang , Wu, Changyu , Weng, Zhiyu . Disintegration Characteristics of Highly Weathered Granite under the Influence of Scouring . | WATER , 2024 , 16 (3) . |
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通过对太阳能电池进行分类比较，对转换效率、耐久性及成本效益等方面进行比较，总结出不同太阳能电池性能特点，并依托楚歌新能源当阳市庙前镇孟起99 MW农光互补光伏电站工程实例，根据农光互补项目特点，从经济适用性及转换效率性角度出发，提出了组件尺寸、组件单双面、组件抗PID、硅片规格及逆变器选型方法，为类似农光互补工程组件选型提供了一定参考价值。
Keyword ：
光伏组件 光伏组件 农光互补 农光互补 组件选型 组件选型 逆变器 逆变器
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| GB/T 7714 | 孙琦 , 王学恒 , 张泽渔 et al. 农光互补工程光伏组件选型分析与评价 [J]. | 当代化工研究 , 2024 , PageCount-页数: 3 (09) : 188-190 . |
| MLA | 孙琦 et al. "农光互补工程光伏组件选型分析与评价" . | 当代化工研究 PageCount-页数: 3 . 09 (2024) : 188-190 . |
| APA | 孙琦 , 王学恒 , 张泽渔 , 张向向 . 农光互补工程光伏组件选型分析与评价 . | 当代化工研究 , 2024 , PageCount-页数: 3 (09) , 188-190 . |
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