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Effect of loading rate on shear strength parameters of mechanically and biologically treated waste

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Frontiers of Environmental Science & Engineering 2022年第12期16卷 121-132页

作者： Guoyang Fan zhenying zhang Jiahe zhang Jiayue zhang Qiaona Wang Min Wang Bang Wang Chengyu Nie School of Civil Engineering and Architecture Zhejiang Sci-tech UniversityHangzhou310018China

Mechanical biological treatment(MBT)technology has attracted increasing attention because it can reduce the volume of waste *** deal with the current trend of increasing waste,MBT practices are being adopted to address waste generated in developing urban *** this study,a total of 20 specimens of consolidated undrained triaxial tests were conducted on waste obtained from the Hangzhou Tianziling landfill,China,to evaluate the effect of loading rate on the shear strength parameters of MBT *** MBT waste samples exhibited an evident strain-hardening behavior,and no peak was observed even when the axial strain exceeded 25%.Further,the shear strength increased with an increase in the loading rate;the effect of loading rate on shear strength under a low confining pressure was greater than that under a high confining ***,the shear strength parameters of MBT waste were related to the loading *** relationship between the cohesion,internal friction angle,and logarithm of the loading rate could be fitted to a linear relationship,which was established in this ***,the ranges of shear strength parameters cohesion c and effective cohesion c′were determined as 1.0–8.2 kPa and 2.1–14.9 kPa,respectively;the ranges of the internal friction angleφand effective internal friction angleφ’were determined as 16.2°–29°and 19.8°–43.9°,*** results could be used as a valuable reference for conducting stability analyses of MBT landfills.

关键词： Mechanically and biologically treated waste Landfill Triaxial test Loading rate Axial strain Shear strength parameter

Comparison of settlement behaviors of high-food-waste-content(HFWC) and low-food-waste-content(LFWC) MSWs and assessment of their prediction models

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Science China(Technological Sciences) 2019年第12期62卷 2271-2292页

作者： XU Hui QIU HaoLei ZHU Guang ZHAN LiangTong zhang zhenying XU XiaoBing CHEN YunMin WANG YuZe School of Civil Engineering and Architecture Zhejiang Sci-Tech UniversityHangzhou 310018China MOE Key Laboratory of Sofi Soils and Geoenvironmental Engineering Zhejiang UniversityHangzhou 310058China Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering Hohai UniversityNanjing 210098China Institute of Geotechnical Engineering Zhejiang University of TechnologyHangzhou 310014China Department of Engineering Durham UniversiyLower MountjoySouth RoadDurham DHI 3LEUK

Settlement behaviors of high-food-waste-content(HFWC) and low-food-waste-content(LFWC) municipal solid wastes(MSWs) respectively from developing and developed countries were characterized and compared based on a great number of experimental datasets from references. Fresh HFWC-MSW generally has larger primary compression ratio compared to fresh LFWC-MSW, due to the release of a large amount of intra-particle water contained in food waste under additional stresses. The slopes of strain-logarithmic time curves with respect to the three secondary compression phases are characterized as "slightsteep-slight" for LFWC-MSWand "moderate-moderate-slight" for HFWC-MSW. It is difficult to distinguish the first two phases of the secondary compression in strain-logarithmic time curves for HFWC-MSW. The entropy method was built to evaluate the performance and applicability of nine published settlement models based on the settlement datasets of four large-scale experiments. The computational simplicity, the fitting performance, the prediction performance and the parametric stability were taken as the four criterions in the entropy method. Based on the evaluation results, the models proposed by Sowers et al.(1973)and Gourc et al.(2010) are recommended for predicting settlement at LFWC-MSW landfills, while the hyperbolic model and the Chen et al.(2010) model are recommended for HFWC-MSW landfills.

关键词： municipal solid waste(MSW) settlement behaviour high food waste content(HFWC) low food waste content(LFWC) entropy method settlement model assessment

A study on hydrocarbon generation potential of deep source rocks and gas sources in Changling Fault Depression,Songliao Basin

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Chinese Journal Of Geochemistry 2011年第2期30卷 255-263页

作者： Zan, Ling zhang, Zhihuan Fei, Jiajia Wu, Yuyuan zhang, zhenying Qin, Liming Mei, Ling Li, Wenhao State Key Laboratory of Petroleum Resource and Prospecting China University of Petroleum Beijing 102249 China East China Branch of SINOPEC Nanjing 210011 China Beijing Economic Management Institute Beijing 100102 China

Through natural gas exploration in the Changling Fault Depression,abundant natural gas flows were obtained and high-quality source rocks were also *** on bulk analyses,organic matter abundance,organic matter type and thermal maturity of the source rocks were studied *** the same time,gas gener-ating intensity and gas generating quantity were quantitatively analyzed by using basin modeling *** results indicated that gas source rocks of the Shahezi Formation are characterized by abundant organic matter and dark mudstone distributions and high-over thermal *** possess high gas generating intensity with the biggest value surpassing 500×108 m3/km2,and large gas generating quantity,accounting from 74.40% of the total *** Yingcheng Formation has good gas-source rocks with moderate dark mudstone and relatively high organic *** has type-Ⅲ organic matter and low-over thermal *** gas generating intensity is moderate,between 20×108 and 60×108 m3/*** gas generating quantity is 13.63% of the total *** Huoshiling Formation has relatively good source rocks with limited dark mudstone and low organic *** has type-Ⅲ kerogen and over-thermal *** gas generating quantity is 7.10% of the total *** Denglouku Formation has poor-gas source rocks,and is characterized by undeveloped dark mudstone and low organic matter *** has type-Ⅲ organic matter and low-high thermal *** gases in the Changling Fault Depression mainly originated from the Shahezi Formation,and secondarily from the Yingcheng *** contribution of the Huoshiling Formation gas source rocks is relatively small.

关键词： the Changling Fault Depression dark mudstone the Shahezi Formation hydrocarbon basin modeling

Source and commingling features of light oils from the Chepaizi uplift in the Junggar Basin, Northwest China

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Chinese Journal Of Geochemistry 2010年第2期29卷 121-129页

作者： zhang Zhihuan QIN Liming LI Wei WANG Chunjiang QIU Nansheng MENG Xianlong zhang zhenying YUAN Dongshan1 State Key Laboratory of Petroleum Source and Prospecting China University of Petroleum Beijing 102249 China SINOPEC International Petroleum Exploration and Production Corporation Beijing 100083 China West Branch of Exploration and Development Institute ofSINOPEC Xinjiang 830011 China Beijing Economic Management College Hebei 102602 China

Geochemical composition characteristics of light oils from the Tertiary in the west of the Chepaizi uplift in the Junggar basin, northwest China, are distinct from those of biodegraded oils derived from the Permian in the study area and crude oils from some adjacent oil fields such as the Chepaizi and Xiaoguai oilfields. Oil source corre-lation shows that light oils in the study area have similar n-alkane and isoprenoid distribution patterns and carbon isotope compositions with the coal-derived oils from the Jurassic, and display obvious discrepancy on biomarker composition characteristics with the Cretaceous source rock extracts, inferring that they are probably the mixed oils from the Jurassic coal measures and Cretaceous source rocks. In this study, combined with the geochemical data of coal-derived oils from the Jurassic and Cretaceous source rocks or crude oils from the Cretaceous, the source and commingling features of the Tertiary crude oils of Well Pai 2 and Well Pai 8 were investigated. The proportion of the two sources in the mixed crude oils was estimated, and the hydrocarbon accumulation pattern of reservoirs in the study area was established.

关键词：准噶尔盆地原油特征中国西北轻质原油隆起原油地球化学特征碳同位素组成煤系烃源岩

Combination and superimposition of source kitchens and their effects on hydrocarbon accumulation in the hinterland of the Junggar Basin,west China

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Petroleum Science 2010年第1期7卷 59-72页

作者： zhang Zhihuan Qin Liming Qiu Nansheng Zhong Ningning zhang zhenying Li Wei State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Beijing 102249 China Beijing Institute of Economic Management Hebei 102602 China SINOPEC International Petroleum Exploration and Production Corporation Beijing 100083 China

In the hinterland of the Junggar Basin, there are multiple depressions with multiple sets of source rocks. Therefore, the conditions of hydrocarbon sources are complex, and the geochemical characteristics and sources of hydrocarbon vary in different structural belts. The evolution of the Che- Mo palaeohigh affected the formation of hydrocarbon source kitchens and hydrocarbon migration. We studied the combination and superimposition of hydrocarbon source kitchens, using as an example the hinterland of the Junggar Basin （including the Yongjin, Zhengshacun, Moxizhuang and Luliang uplift areas）. The study was based on geochemical analyses of crude oil and fluid inclusions, and the histories of tectonic evolution and hydrocarbon generation. The results indicated that before the Paleogene there were two hydrocarbon-generating depressions： the Western Well Penl depression and the Changji depression on the south and north sides of the Che-Mo palaeohigh, respectively. The Permian source kitchen had been generating hydrocarbon continuously since Triassic and reached high maturity stage in the Cretaceous period. After Paleogene, the adjustment of the Che-Mo palaeohigh led to the subsidence of the Changji depression and the Jurassic source rocks reached mature stage and became the main source kitchens. However, the Jurassic source rocks in the Western Well Penl depression were still in a low maturity stage and did not generate oil because of the adjustment of tectonic movements. As a result, in the central and southern parts of the Junggar Basin, Jurassic source rocks generated oil, but in the Luliang uplift, the crude oil was from the Permian source rocks in the Western Well Penl depression and the Jurassic source rocks did not contribute. The crude oil in the central Zhengshacun-Moxizhuang belt was from the Permian source rocks in two depressions, and partially from the Jurassic source rocks. The crude oil in the Luliang uplift was from the source rocks of the lower Permian F

关键词： Hinterland of the Junggar Basin hydrocarbon source kitchen oil source combination and superimposition accumulation stage

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论姚合、贾岛诗歌清新奇峭之美学风格

广西社会科学 2022年第6期 148-154页

作者：张震英海南师范大学文学院海南海口571158

姚合、贾岛之所以为后人相提并论,与二人在创作过程中形成的清新奇峭的总体风格密不可分。二人诗歌中“清”的传统除了与盛中唐山水田园审美主题一脉相承外,更多表现为形式上的“清词丽句”及风格上的“清幽清苦”,在诗歌的语言、格调... 详细信息

姚合、贾岛之所以为后人相提并论,与二人在创作过程中形成的清新奇峭的总体风格密不可分。二人诗歌中“清”的传统除了与盛中唐山水田园审美主题一脉相承外,更多表现为形式上的“清词丽句”及风格上的“清幽清苦”,在诗歌的语言、格调与韵律方面也常常体现出清绝、清整、清硬、清峭、清奇的特色。姚合、贾岛二人“清”的特质同时也与弱、浅、浮等审美风格息息相关。姚合、贾岛在诗歌创作上的“刻意求新”,不仅是对大历元和以来主流诗风的变革,也表现为形成了一种在立意、谋篇、遣词、造句、形貌、境界等多方面全新风格的五言律体,被时人追捧和后人认可。姚合、贾岛诗歌中“奇”的表现同中有异,“奇”在姚诗中可用“拙中藏巧”概括,在贾诗中可用“大巧若拙”概括。姚合、贾岛诗风中的“峭”除表现在总体风貌、声律格调等方面外,也表现为一种在精神与人格上的追求。

关键词：姚合贾岛诗人并称中晚唐清新奇峭美学风格

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Hencky第二定律的探讨

岩土工程学报 1999年第2期21卷 242-243页

作者：张振营青岛建筑工程学院建工系

１前言所谓滑移线，即材料破裂面的迹线。掌握应力滑移线（相应的还有速度滑移线）的物理与几何性质，对于构造应力场，求解极限荷载是至关重要的。滑移线是这样规定的：以大主应力迹线为基线，瞬时针转μ角为α线，逆时针转μ角为β线... 详细信息

１前言所谓滑移线，即材料破裂面的迹线。掌握应力滑移线（相应的还有速度滑移线）的物理与几何性质，对于构造应力场，求解极限荷载是至关重要的。滑移线是这样规定的：以大主应力迹线为基线，瞬时针转μ角为α线，逆时针转μ角为β线［１］（见图１）。对Ｔｒｅｓｃａ材...

关键词：滑移线 Hencky 第二定律

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论姚合、贾岛对唐诗山水田园审美主题的新变

文艺研究 2006年第1期 66-72页

作者：张震英广西师范学院中文系中国社会科学院文学研究所

中晚唐之交,姚合、贾岛二人以五律为载体,在继承先贤的基础上对山水田园审美主题进行了富有时代特色的探索与开拓。姚、贾对山水田园审美主题的继承使后人将其与陶、谢、王、孟、钱、郎、韦、柳等诗人组合相提并论,成为山水田园诗歌发... 详细信息

中晚唐之交,姚合、贾岛二人以五律为载体,在继承先贤的基础上对山水田园审美主题进行了富有时代特色的探索与开拓。姚、贾对山水田园审美主题的继承使后人将其与陶、谢、王、孟、钱、郎、韦、柳等诗人组合相提并论,成为山水田园诗歌发展历程中承上启下的重要环节。姚、贾对山水田园审美主题的新变使得山水田园审美主题在晚唐五代呈现出全新的风貌,进而开启了宋代的山水田园诗歌的基本特色,同时也在某种程度上奠定了姚、贾在唐诗史中独树一帜的地位。

关键词：唐诗姚分贾岛山水田园审美主题

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《诗人主客图》与唐人诗歌流派观念的形成

学术论坛 2010年第11期33卷 70-74页

作者：张震英湖北大学文学院

《诗人主客图》以"法度一则"为标准,首次明确地从风格和传承的角度对众多中晚唐诗人进行了派别上的区分,具有区分风格流派、辨析渊源传承、品第诗人高下的意图,确立了唐诗流派理论之雏型。《诗人主客图》的产生标志着唐人风格流派意识... 详细信息

《诗人主客图》以"法度一则"为标准,首次明确地从风格和传承的角度对众多中晚唐诗人进行了派别上的区分,具有区分风格流派、辨析渊源传承、品第诗人高下的意图,确立了唐诗流派理论之雏型。《诗人主客图》的产生标志着唐人风格流派意识的形成,同时也成为后世诗歌流派学说之滥觞。后世学者对《诗人主客图》在诗歌流派理论方面的首创之功多予以肯定,但对其取舍划分的标准多有批评,究其批评的实质,乃为历史的真实与后世文学史的总结、唐人对唐诗的认识与后人对唐诗的认识、《诗人主客图》作者张为与后代评论家对唐诗理解之间的差别。《诗人主客图》不仅是今人确认元白、姚贾等诗歌流派之风格及阵容的首要依据,而且对研究中晚唐诗歌流派之特征、传承及分布均有重要的文献价值。

关键词：《诗人主客图》张为诗歌流派风格

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