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Design Method for Road Reconstruction and Expansion

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Journal of Architectural Research and Development 2024年第2期8卷 31-36页

作者： Wei gan haonan Ding Zhipang Yang China Merchants Chongqing Communications Technology Research&Design Institute Co. Ltd.Chongqing 400067China

This article analyzes the method for designing routes in road reconstruction and expansion projects,using an actual engineering project as an example.This includes an overview of a specific road reconstruction and expansion project,an analysis of the preexisting road,the basic principles of the design road project,and an analysis of the design methods and steps.This study aims to offer some guidance for road reconstruction and expansion design.

关键词： Road engineering Reconstruction and expansion Line design Design principles

Settlement Control Standards of Construction and Expansion for Mountainous Highway Roadbeds

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Journal of Architectural Research and Development 2024年第2期8卷 43-49页

作者： Zhipan Yang Wei gan haonan Ding China Merchants Chongqing Communications Technology Research&Design Institute Co. Ltd.Chongqing 400067China

This article analyzes the differential settlement of new and old roadbeds after widening and its characteristics based on a highway reconstruction and expansion project case study.The research proposes a subgrade settlement control standard that states that the maximum differential settlement value should be less than 5 cm when the embankment fill height exceeds 20 m.Similarly,the maximum differential settlement value should be less than 10 cm when the embankment fill height does not exceed 20 m.The findings of the study can provide a useful reference for the design of roadbed widening in highway reconstruction and expansion projects.

关键词： Mountainous highway Reconstruction and expansion Roadbed widening Settlement control

Analysis of Roadbed Pavement Designs for Highway Reconstruction and Upgrading

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Journal of Architectural Research and Development 2024年第3期8卷 93-97页

作者： haonan Ding Zhipan Yang Wei gan China Merchants Chongqing Communications Technology Research&Design Institute Co. LTD.Chongqing 400067China

This paper focuses on the route and roadbed pavement design in highway reconstruction and upgrading projects.It discusses the importance of project design for highway reconstruction and upgrading,highlighting key aspects of route design and roadbed pavement design.The analysis reveals that the main design considerations in these projects include controlling factors of route reconstruction,expansion,and upgrading,as well as route plan design and longitudinal section design combined with roadbed pavement.In roadbed pavement design,it is crucial for designers to thoroughly collect existing data and make reasonable use of the current roadbed and pavement to develop a comprehensive design scheme.This analysis aims to provide a reference for the reasonable design of such projects.

关键词： Highway engineering Reconstruction and upgrading design Route design Roadbed and pavement design

华南陆缘火成岩区差异性地壳热结构及地热意义

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地质学报 2024年第2期98卷 544-557页

作者：蔺文静王贵玲甘浩男中国地质科学院水文地质环境地质研究所河北石家庄050061 自然资源部地热与干热岩勘查开发技术创新中心河北石家庄050061

高产热花岗岩是重要的壳内热源之一,我国华南陆缘花岗岩体分布广泛,为该区浅表热量的生成及聚集提供了可能。本文在简述区内花岗岩资源分布的基础上,系统分析了区内主要花岗岩体的放射性生热特征,并结合区内近些年施工的地热勘探深钻,... 详细信息

高产热花岗岩是重要的壳内热源之一,我国华南陆缘花岗岩体分布广泛,为该区浅表热量的生成及聚集提供了可能。本文在简述区内花岗岩资源分布的基础上,系统分析了区内主要花岗岩体的放射性生热特征,并结合区内近些年施工的地热勘探深钻,对重点地热勘查区的深部地温场分布、地热通量、地壳热结构等进行了对比分析,提出了华南陆缘浅表地热资源的聚热模式。分析认为,华南陆缘地区具有“幔源供热-壳内生热-断裂传热-盖层保热”的四元聚热模式,其中,花岗岩体的放射性生热率是影响区内浅部地温场的主要因素之一,粤北—赣南岩体的生热率明显高于漳州地区的花岗岩体,其近似“热壳冷幔”型或“温壳温幔”型岩石圈热结构与漳州“热幔冷壳”型岩石圈热结构有一定的差异;断裂构造及盖层条件对于地下热量聚集及散失具有明显的控制作用。研究成果对于深入理解华南陆缘地热资源的成因、控热因素,以及今后该地区地热资源勘探开发实践具有一定的理论与指导意义。

关键词：高产热花岗岩大地热流地壳热结构热源机制华南陆缘

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MACDCgan的发电机轴承故障诊断方法

振动与冲击 2024年第11期43卷 227-235页

作者：曹洁尹浩楠王进花兰州理工大学电气工程与信息工程学院兰州730050 甘肃省制造信息工程研究中心兰州730050

在实际工况中,发电机中传感器采集到的故障样本数据有限,使用基于深度学习的方法进行故障诊断存在过拟合问题导致模型泛化能力较差以及诊断精度不高。为了解决这个问题,采用样本扩充的思路,提出了一种改进的辅助分类器条件深度卷积生成... 详细信息

在实际工况中,发电机中传感器采集到的故障样本数据有限,使用基于深度学习的方法进行故障诊断存在过拟合问题导致模型泛化能力较差以及诊断精度不高。为了解决这个问题,采用样本扩充的思路,提出了一种改进的辅助分类器条件深度卷积生成对抗网络(MACDCgan)的故障诊断方法。通过对采集的一维时序信号进行小波变换增强特征,构建简化结构参数的条件深度卷积生成对抗网络模型生成样本,并在模型中采用Wasserstein距离优化损失函数解决训练过程中存在模式崩塌和梯度消失的缺点;通过添加一个独立的分类器来改进分类模型的兼容性,并在分类器中引入学习率衰减算法增加模型稳定性。试验结果表明,该方法可以有效地提高故障诊断的精度,并且验证了所提模型具有良好的泛化性能。

关键词：发电机特征提取生成对抗网络(gan) 卷积神经网络(CNN) 故障诊断

Hydrothermal Systems Characterized by Crustal Thermally-dominated Structures of Southeastern China

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Acta Geologica Sinica(English Edition) 2023年第4期97卷 1003-1013页

作者： WANG Guiling gan haonan LIN Wenjing YUE Gaofan YAN Xiaoxue LI Tingxin ZHANG Wei MA Feng Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesShijiazhuangHebei 050061China Technology Innovation Center for Geothermal&Hot Dry Rock Exploration and Development Ministry of Natural ResourcesShijiazhuangHebei 050061China

Southeastern China(SE China)is located in the Pacific tectonic domain and has experienced a series of tectono-magmatic events induced by the subduction of the Paleo-Pacific Plate since the late Mesozoic.The subduction formed a series of NE-NNE oriented faults under a NW-SE regional stress field,along which a number of thermal springs occur.Previous studies have focused on the genesis mechanism of specific geothermal fields in SE China,but the general characteristics of hydrothermal systems in SE China remains unclear.In this study,we investigate the correlation between geothermal activity,hydrochemical type and regional faults by studying the distribution of hydrothermal activity and geochemical properties of typical hydrothermal systems in SE China.The hydrothermal systems in SE China have a crustal thermally-dominated structural origin unique to the specific geological and tectonic conditions of the Eurasian Plate margin.The upwelling of the asthenosphere and the widespread granitoids with high radiogenic heat production in SE China provide major heat sources for regional geothermal anomalies.The NE-oriented crustal thermally-dominated faults are critical for the formation of geothermal anomalies and NW-oriented extensional faults have created favorable conditions for meteoric water infiltration,transportation and the formation of thermal springs.

关键词： hydrothermal system geothermal reservoir geothermal activity thermal lithosphere Southeastern China

基于金属织物和自然摩擦带电的电子皮肤对人体运动的智能识别

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Science China Materials 2024年第3期67卷 887-897页

作者：徐锦杰陈婉翟刘樑杰江姗姗王浩楠张家翔甘昕艳周雄图郭太良吴朝兴张永爱 College of Physics and Information Engineering Fuzhou UniversityFuzhou 350108China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China

目前已开发出各种基于电子或光学信号的技术来感知身体运动,这在医疗保健、康复和人机交互等领域至关重要.然而,这些信号都是从身体外部获取的.本研究中,我们制备了一种电子皮肤(e-skin)人体运动传感器,它利用有机聚合物和金属织物的组... 详细信息

目前已开发出各种基于电子或光学信号的技术来感知身体运动,这在医疗保健、康复和人机交互等领域至关重要.然而,这些信号都是从身体外部获取的.本研究中,我们制备了一种电子皮肤(e-skin)人体运动传感器,它利用有机聚合物和金属织物的组合,通过人体的自然电荷感应(EI)来检测运动.该电子皮肤可获得高达450 V的人体电势信号.此外,该信号可通过最先进的深度学习技术自动提取和训练.该传感器能准确识别睡眠活动,准确率约为96.55%.这种可穿戴运动传感器可以与物联网技术无缝集成,实现多功能应用,展示了其在人类活动识别和人工智能方面的潜在用途.

关键词： human activity recognition e-skin sleep motion recognition contact-separation electrification 1D-CNN

Research on Formation Mechanisms of Hot Dry Rock Resources in China

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Acta Geologica Sinica(English Edition) 2016年第4期90卷 1418-1433页

作者： WANG Guiling LIN Wenjing ZHANG Wei LU Chuan MA Feng gan haonan Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological Sciences

As an important geothermal resource, hot dry rock （HDR） reserves have been studied in many countries. HDR resources in China have huge capacity and have become one of the most important resources for the potential replacement of fossil fuels. However, HDR resources are difficult to develop and utilise. Technologies for use with HDR, such as high-temperature drilling, reservoir characterisation, reservoir fracturing, microseismic monitoring and high-temperature power stations, originate from the field of oil and drilling. Addressing how to take advantage of these developed technologies is a key factor in the development of HDR reserves. Based on the thermal crustal structure in China, HDR resources can be divided into four types： high radioactive heat production, sedimentary basin, modern volcano and the inner-plate active tectonic belt. The prospective regions of HDR resources are located in South Tibet, West Yunnan, the southeast coast of China, Bohai Rim, Songliao Basin and Guanzhong Basin. The related essential technologies are relatively mature, and the prospect of HDR power generation is promising. Therefore, analysing the formation mechanisms of HDR resources and promoting the transformation of technological achievements, large-scale development and the utilisation of HDR resources can be achieved in China.

关键词： HDR resources drilling technique genetic type resources distribution develop prospect

Heat Aggregation Mechanisms of Hot Dry Rocks Resources in the Gonghe Basin, Northeastern Tibetan Plateau

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Acta Geologica Sinica(English Edition) 2021年第6期95卷 1793-1804页

作者： LIN Wenjing WANG Guiling ZHANG Shengsheng ZHAO Zhen XING Linxiao gan haonan TAN Xianfeng Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesShijiazhuang 050061China Technical Innovation Center for Geothermal and HDR Exploration and Development Ministry of Natural ResourcesShijiazhuang 050061China Institute of the Hydrogeology and Engineering Geology of Qinghai Shijiazhuang 050061China Qinghai Bureau of Environmental Geology Exploration Xining 810007China Shandong Provincical Lunan Geo-engineering Exploration Institute(The Second Geological Brigade of Shandong Geological Exploration Bureau) JiningShangdong 272100China

Hot dry rock(HDR) is an important geothermal resource and clean energy source that may play an increasingly important role in future energy management. High-temperature HDR resources were recently detected in deep regions of the Gonghe Basin on the northeastern edge of the Tibetan Plateau, which led to a significant breakthrough in HDR resource exploration in China. This research analyzes the deep temperature distribution, radiogenic heat production, heat flow, and crustal thermal structure in the Qiaboqia Valley, Guide Plain, and Zhacanggou area of the Gonghe Basin based on geothermal exploration borehole logging data, rock thermophysical properties, and regional geophysical exploration data. The results are applied to discuss the heat accumulation mechanism of the HDR resources in the Gonghe Basin. The findings suggest that a low-velocity layer in the thickened crust of the Tibetan Plateau provides the most important source of constant intracrustal heat for the formation of HDR resources in the Gonghe Basin, whereas crustal thickening redistributes the concentrated layer of radioactive elements, which compensates for the relatively low heat production of the basal granite and serves as an important supplement to the heat of the HDR resources. The negative effect is that the downward curvature of the lithospheric upper mantle caused by crustal thickening leads to a small mantle heat flow component. As a result, the heat flows in the Qiaboqia Valley and Guide Plain of the Gonghe Basin are 106.2 and 77.6 m W/m2, respectively, in which the crust-mantle heat flow ratio of the former is 3.12:1, indicating a notably anomalous intracrustal thermal structure. In contrast, the crust-mantle heat flow ratio in the Guide Plain is 1.84:1, which reflects a typical hot crust-cold mantle thermal structure. The Guide Plain and Zhacanggou area show the same increasing temperature trend with depth, which reflects that their geothermal backgrounds and deep high-temperature environments are similar. These results provide important i

关键词： radiogenic heat production heat flow crustal thermal structure hot dry rock heat source mechanism