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国家自然科学基金(41121061): 作品数：64被引量：1164H指数：21; 导出分析报告; 相关作者：马巍牛富俊俞祁浩李国玉金会军更多>>; 相关机构：中国科学院中国科学院大学学研究院兰州大学更多>>; 相关期刊：《岩石力学与工程学报》《水科学进展》《Research in Cold and Arid Regions》《公路工程》更多>>; 相关主题：多年冻土冻土多年冻土区PERMAFROST冻融循环更多>>; 相关领域：天文地球建筑科学交通运输工程石油与天然气工程更多>>

Porosity of crushed rock layer and its impact on thermal regime of Qinghai-Tibet Railway embankment被引量：6: 《Journal of Central South University》2017年第4期977-987,共11页LIU Ming-hao LI Guo-yu NIU Fu-jun LIN Zhan-ju LIN Zhan-ju; Project(2012CB026101)supported by the National Key Basic Research Program of China(973 Program);Project(41121061)supported by the Program for Innovative Research Group of Natural Science Foundation of China;Project(143GKDA007)supported by the Science and Technology Major Project of the Gansu Province;Project(SKLFSE-ZY-16)supported by the State Key Laboratory of Frozen Soil Engineering,China;Project supported by the West Light Foundation of CAS for G.Y.Li; It has been proven that crushed rock layers used in roadbed construction in permafrost regions have a cooling effect. The main reason is the existence of large porosity of the rock layers. However, due to the strong w...; 关键词：Qinghai-Tibet Railway crushed rock embankment POROSITY wind-blown sand permafrost degradation

青藏粉质黏土单向冻结冷生构造发育及冻胀发展过程试验研究被引量：19: 《岩土力学》2016年第5期1333-1342,共10页王永涛王大雁马巍穆彦虎关辉顾同欣; 国家自然科学基金(No.41071048);国家自然科学基金创新群体(No.41121061);冻土工程国家重点实验室基金(No.SKLFSE-ZT-17)~~; 通过对青藏饱和粉质黏土进行开放条件下的单向冻结试验,并结合土样冻结过程的图像数据,分析土样在单向冻结过程中冷生构造的发育和冻胀变形的发展规律,得到以下结论:试样冻结稳定所需时间为26 h左右,基本不受顶板温度变化的影响,但土样...; 关键词：单向冻结数字图像采集技术冷生构造冻胀变形水分迁移

青海省共和-玉树高速公路沿线典型冻土路基保护多年冻土效果的初步分析被引量：17: 《岩石力学与工程学报》2016年第3期638-648,共11页冯子亮盛煜陈继吴吉春李静曹元兵胡晓莹张秀敏; 国家自然科学基金创新群体项目(41121061);共和至结古高等级公路多年冻土路基监测研究(Y352J51001)资助~~; 基于青海省共和—玉树（共玉）高速公路修筑初期的地温监测资料,对3种典型冻土路基措施,即保温路基、块石路基和通风管路基下部浅层（0～4 m）地温、深层（4 m以下）地温以及多年冻土人为上限变化情况进行对比分析,研究路基修筑初期下...; 关键词：土力学共玉高速公路修筑初期多年冻土路基措施

Analysis of permanent deformations of railway embankments under repeated vehicle loadings in permafrost regions被引量：2: 《Research in Cold and Arid Regions》2015年第6期645-653,共9页Wei Ma Tuo Chen; supported by the National Key Basic Research Program of China (973 Program) (No. 2012CB026106);the Program for the Innovative Research Group of the National Natural Science Foundation of China (No. 41121061);the Project for Excellence, State Key Laboratory of the National Natural Science Foundation of China (No. 41023003); By large-scale dynamic tests carried out on a traditional sand-gravel embankment at the Beilu River section along the Qinghai-Tibet Railroad, we collected the acceleration waveforms close to the railway tracks when tr...; 关键词：vehicle load permanent deformation creep effect permafrost regions

中俄原油管道漠大线运营后面临一些冻害问题及防治措施建议被引量：43: 《岩土力学》2015年第10期2963-2973,共11页李国玉马巍王学力金会军王永平赵迎波蔡永军张鹏; 国家自然科学基金(No.41171055);国家自然科学基金创新群体(No.41121061);国家重点基础研究发展计划资助(973项目)(No.2012CB026106);中国科学院西部之光重点项目;冻土工程国家重点实验室自主项目(No.SKLFSE-ZY-11;No.SKLFSE201302); 基于世界上几条多年冻土区修建输油气管道的经验,结合我国境内的中俄原油管道漠河-大庆段(漠大线)现场调查、油温监测和探地雷达等勘察结果,研究漠大线运营后可能面临的主要冻害问题、形成过程、影响因素、成灾机制、管道影响,提出预防...; 关键词：中俄原油管道多年冻土冻胀融沉冰椎冰刨蚀冻胀丘

我国季节性冻土区公路路基冻害及其防治研究进展被引量：67: 《冰川冻土》2015年第5期1283-1293,共11页武立波祁伟牛富俊牛永红; 国家科技支撑计划项目(2014BAG05B05);国家自然科学基金创新群体项目(41121061);甘肃省交通运输厅科研项目(2012-09)资助; 近年来,季节性冻土区公路路基冻害研究已取得了长足的进步,但是,因受气候、环境、冻融循环等不同因素的影响,季节性冻土区公路路基冻害问题依然突出.随着国家公路规划网的逐步实施,将有更多的公路工程向季节性冻土区推进,为了将已有的...; 关键词：季节性冻土区公路路基冻害破坏形式防治措施

Long-term thermal regimes of the Qinghai-Tibet Railway embankments in plateau permafrost regions被引量：18: 《Science China Earth Sciences》2015年第9期1669-1676,共8页NIU Fu un LIU MingHao CHENG GuoDong LIN ZhanJu LUO Jing YIN GuoAn; supported by the National Basic Research Program of China(Grant No.2012CB026101);the Western Project Program of the Chinese Academy of Sciences(Grant No.KZCX2-XB3-19);the Foundation for Innovative Research Groups of the National Natural Science Foundation of China(Grant No.41121061);the National Sci-Tech Support Plan(Grant No.2014BAG05B05); Ten years of ground temperature data(2003–2013) indicate that the long-term thermal regimes within embankments of the Qinghai-Tibet Railway(QTR) vary significantly with different embankment structures. Obvious asymme...; 关键词：Qinghai-Tibet Railway PERMAFROST embankment structure thermal regime long-term stability

多年冻土区青藏铁路路基的长期热状况被引量：21: 《中国科学：地球科学》2015年第8期1220-1228,共9页牛富俊刘明浩程国栋林战举罗京尹国安; 国家重点基础研究发展计划项目(编号:2012CB026101);国家自然科学基金创新群体项目(批准号:41121061);中国科学院西部行动计划项目(编号:KZCX2-XB3-19);国家科技支撑计划项目(编号:2014BAG05B05)资助; 基于青藏铁路楚玛尔河试验段10年（2003～2013）的地温监测资料，对青藏铁路4种典型路基结构的长期热状况进行了对比分析．结果表明，不同路基结构的长期热状况表现出较大的差异．普通路基与块石基底路基地温场存在明显的不对称分布，...; 关键词：青藏铁路多年冻土路基结构热状况长期稳定性

Processes and mechanisms of multi-collapse of loess roads in seasonally frozen ground regions: A review被引量：3: 《Research in Cold and Arid Regions》2015年第4期456-468,共13页GuoYu Li Wei Ma Fei Wang YanHu Mu YunCheng Mao Xin Hou Hui Bing; supported by the National Key Basic Research Program of China (973 Program) (No. 2012CB026106);the Science and Technology Major Project of Gansu Province (No. 143GKDA007);the West Light Foundation of CAS for Dr. G. Y. Li;the Program for Innovative Research Group of the Natural Science Foundation of China (No. 41121061);the Foundation of the State Key Laboratory of Frozen Soils Engineering of CAS (No. SKLFSE-ZT-11); Usually, the collapsible loess widely distributed across the world can serve as a type of foundation soil that meets its strength requirement after dense compaction and elimination of collapsibility. However, many pro...; 关键词：mechanics of loess loess roads secondary or multiple collapse FREEZING-THAWING wetting-drying saliniza-tion-desalinization

Numerical analysis of applying special pavements to solve the frost heave diseases of high-speed railway roadbeds in seasonally frozen ground regions被引量：6: 《Research in Cold and Arid Regions》2015年第4期340-347,共8页Chang Yuan FuJun Niu QiHao Yu XinBin Wang Lei Guo YanHui You; supported by the National Science and Technology Support Program (No. 2014BAG05B03);the National Key Basic Research Program of China (973 Program) (No. 2012CB026106);the Program for Innovative Research Group of the Natural Science Foundation of China (No. 41121061); The Haerbin-Dalian Passenger Dedicated Line is the first high-speed railway constructed in the seasonally frozen ground regions of northeastern China. Frost heave diseases occurred in the first winter of its operation...; 关键词：frost heave numerical simulation special pavement thermal regime

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