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《《南水北調(diào)與水利科技》:南水北調(diào)中線總干渠(河北段)混凝土襯砌防凍脹設(shè)計(jì)技術(shù)(嚴(yán)增才 李振卿)(摘要)》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在工程資料-天天文庫(kù)。
1、《南水北調(diào)與水利科技》:南水北調(diào)中線總干渠(河北段)混凝土襯砌防凍脹設(shè)計(jì)技術(shù)(嚴(yán)增才李振卿)(摘要)《南水北調(diào)與水利科技》:南水北調(diào)中線總干渠(河北段)混凝土襯砌防凍脹設(shè)計(jì)技術(shù)(嚴(yán)增才李振卿)(摘要) #TRS_AUTOADD_1218772099750{MARGIN-TOP:0px;FONT-SIZE:12pt;MARGIN-BOTTOM:0px;LINE-HEIGHT:1.5;FONT-FAMILY:宋體}#TRS_AUTOADD_1218772099750P{MARGIN-TOP:0px;FONT-SIZE:12pt;MARGI
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3、DD_1218772099750LI{MARGIN-TOP:0px;FONT-SIZE:12pt;MARGIN-BOTTOM:0px;LINE-HEIGHT:1.5;FONT-FAMILY:宋體}/**---JSON--{"":{"line-height":"1.5","font-family":"宋體","font-size":"12pt","margin-top":"0","margin-bottom":"0"},"p":{"line-height":"1.5","font-family":"宋體","font-size":"12p
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5、,"font-family":"宋體","font-size":"12pt","margin-top":"0","margin-bottom":"0"}}--**/摘要:南水北調(diào)中線總干渠混凝土襯砌防凍脹技術(shù)研究,發(fā)現(xiàn)了適合于淺層季節(jié)凍土區(qū)的凍結(jié)凍脹規(guī)律,建立了以工程地點(diǎn)水文地質(zhì)條件和鄰近氣象臺(tái)站氣溫資料為計(jì)算依據(jù)的凍深、凍脹量計(jì)算經(jīng)驗(yàn)公式及三種保溫層厚度計(jì)算方法,依據(jù)不同渠道混凝土襯砌結(jié)構(gòu)的防凍脹效果,提出以允許不均勻變位系數(shù)和允許法向位移量作為渠道襯砌抗凍脹穩(wěn)定性的要求條件以及典型襯砌結(jié)構(gòu)的允許不均勻變位系數(shù)。在匯總試驗(yàn)研究成果的基
6、礎(chǔ)上,通過(guò)對(duì)中線工程總干渠沿線氣候、水文地質(zhì)、走向、環(huán)境等因素的綜合分析,并結(jié)合已有的兩個(gè)抗凍規(guī)范,提出適合于總干渠混凝土襯砌防凍脹設(shè)計(jì)技術(shù)。
關(guān)鍵詞:南水北調(diào);中線工程;總干渠;混凝土襯砌;防凍脹設(shè)計(jì)技術(shù)
中圖分類號(hào):TV68;TV31文獻(xiàn)標(biāo)識(shí)碼:B文章編號(hào):1672-168301-0176-06
DesignTechniquesforAnti-FreezingExpansionoftheConcreteLiningintheMainCanal(HeibeiSection)oftheSouth-to-NorthWaterD
7、iversionProject
YANZeng-cai,LIZhen-qing
(TheAdministrativeDivisionoftheWaterAffairsoftheDaqingRiverofHebeiProvince,Baoding071051,China)
Abstract:Byresearchonthefreezingexpansionproofoftheconcretelininginthemaincanal(Heibeisection)oftheSouth-to-NorthWaterDiversionPr
8、oject,someregulationsgoverningthefreezingexpansionratioforthesoilintheseasonalfreezingareashavebeenfoun