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抗滑短桩支护土坡的试验研究 被引量:3
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作者 曾红艳 刘伟 +2 位作者 周成 韩利彪 谭昌明 《重庆交通大学学报(自然科学版)》 CAS CSCD 北大核心 2020年第9期119-126,共8页
为探究不同长度的抗滑短桩对坡土的支护效果,采用单排抗滑短桩加固无黏性土边坡,抗滑短桩桩长L=0(无抗滑短桩)、18、28、43 cm,开展了天然工况下牵引式滑坡模型试验;分析了模型侧壁观测土条和坡土内小块体的位移变化特征与坡土滑移面的... 为探究不同长度的抗滑短桩对坡土的支护效果,采用单排抗滑短桩加固无黏性土边坡,抗滑短桩桩长L=0(无抗滑短桩)、18、28、43 cm,开展了天然工况下牵引式滑坡模型试验;分析了模型侧壁观测土条和坡土内小块体的位移变化特征与坡土滑移面的分布规律,研究了不同长度的抗滑短桩对土坡的支护作用机理。结果表明:抗滑短桩能有效加固深层土体;随着抗滑短桩长度的增加,加固的土体范围逐渐增加,滑移面向上抬升;当抗滑短桩长度达到一定值后,滑移面的上移速率开始降低。建议:在实际工程中,应联合使用抗滑短桩与坡脚挡墙以同时加固深层土体及浅层坡土,确保整个边坡达到稳定安全状态。 展开更多
关键词 水利工程 公路工程 滑坡 浅层破坏 牵引式破坏 模型试验 抗滑短桩
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Multi-functional stretchable and flexible sensor array to determine the location, shape, and pressure: Application in a smart robot 被引量:10
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作者 han libiao DING JianNing +4 位作者 WANG Shuai XU Jiang YUAN NingYi CHENG GuangGui LIU ZunFeng 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2018年第8期1137-1143,共7页
The rapid increase in the aging population prompts the development of wearable devices and sophisticated robots. With their ability to collect complex information about their surroundings via e-skins, robots could per... The rapid increase in the aging population prompts the development of wearable devices and sophisticated robots. With their ability to collect complex information about their surroundings via e-skins, robots could perform more dynamic and variable tasks such as rescue missions or caring for the elderly. In this paper, we present a new concept of utilizing a very simple, highly flexible and stretchable capacitor sensor array, that can be attached on the surface of a retractable robot hand to realize three functions: determining the location, shape, and pressure of an object. This adaptive sensing system is accomplished using capacitors connected by aligned carbon nanotube(CNT) films constructed on an elastomer dielectric material, which can reduce the requirement on the accuracy of the machine vision system. This study has a very broad application in the manufacture of intelligent software robots. 展开更多
关键词 sensor array STRETCHABLE location shape pressure
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