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¾l“构工程中常用的加固措施有加大截面法、置换法、粘钢法、粘¼„³çº¤¾l´æ¿åQˆå¸ƒåQ‰ã€æ¤½{‹æ³•½{‰ï¼ŒåŠ å›ºæ–ÒŽ³•é€‰å–需依照¾l“构承蝲特征、结构åŞ式、可拆换性及允许½Iºé—´½{‰å¤š¿Uå› ç´ å†³å®šã€‚隧道衬砌结构作为特ŒDŠçš„¾l“构工程åQŒåº”¾l“合自èín承蝲特征和破坏机理,选取合适的加固æ–ÒŽ³•å’Œå·¥è‰ºã€‚首先,æ ÒŽ®å›½å†…外隧道加固技术的˜q›å±•å’ŒçŽ°çŠÓž¼Œ½Ž€è¦åˆ†æžå’Œé˜è¿°å¸¸ç”¨çš„隧道加固技术ã€?</p> <p style="text-align:left;"> <span style="line-height:1.5;">    </span><span style="line-height:1.5;">1.裂缝处理</span> </p> <p style="text-align:left;">     对不影响¾l“构安全性的¾l†å°è£‚缝åQŒè€ƒè™‘裂缝扩展和美观媄响,需对其˜q›è¡Œž®é—­å’Œå¡«å……。根据国内外¾léªŒåQŒè£‚¾~å®½åº¦åœ¨0.2~1mmæ—Óž¼Œéœ€ç”¨é«˜å¼ºåº¦å¯†å°ç ‚浆ž®†è£‚¾~è¡¨é¢å°é—­ï¼Œä»¥é˜²æ­¢è£‚¾~å†…钢筋氧化åQŒåŒæ—¶è“v¾~åˆä½œç”¨åQŒåƈ防止裂缝˜q›ä¸€æ­¥å‘展;裂缝宽度大于åQ‘mm时åQŒé™¤éœ€ž®é—­è£‚缝表面外,˜q˜è¦ç”¨æ³¨ž®„ç­‰æ–ÒŽ³•ž®†çŽ¯æ°§æ ‘脂和高强度胶填充裂缝内。高强度砂浆ž®é—­åQŒå…¶åˆšåº¦å’Œå¼ºåº¦å‡è¾ƒé«˜åQŒå…·æœ‰è¿žæŽ¥è£‚¾~è¡¨é¢ã€é˜²æ­¢è£‚¾~æ‰©å±•çš„功能åQŒæ•…对于各种¾cÕdž‹è£‚缝均可有效ž®é—­åQ›è£‚¾~å¡«å……物主要用于防止裂缝上下表面错动摩擦åQŒä»Žè€Œé˜²æ­¢è£‚¾~å‰ªåˆ‡ã€åŽ‹å‰ªç ´åã€‚裂¾~å†…填充物仅对压剪断裂和剪切断裂有效åQŒå¯¹äºŽå¼ æ‹‰è£‚¾~æˆ–拉剪无效。裂¾~å†…填充物填充饱满即可,压力不得˜q‡å¤§åQŒå› ä¸ø™¿‡å¤§å¡«½{‘压力不利于裂缝¾l“æž„½E›_®šã€?nbsp;<br /> <br />     2.嵌拱åQˆè½¨åQ‰åŠé’¢å¸¦åŠ å›º <br />     隧道衬砌裂缝较严重、但¾l“æž„ž®šæœ‰è¾ƒå¼ºæ‰¿è²èƒ½åŠ›æ—Óž¼Œå¯é€šè¿‡åµŒæ‹±åQˆè½¨åQ‰ã€é’¢å¸¦ä»¥åŠç½‘片加喷射åQˆé’¢¾U¤ç»´åQ‰æ؜凝土的方法对¾l“æž„˜q›è¡ŒåŠ å›ºã€‚嵌拱(轨)法和钢带加固法通过在衬砌结构内环向支撑åQˆæˆ–凿槽埋设åQ‰é’¢å¸¦ã€é’¢æ‹±æž¶æˆ–钢轨,从而ä‹É衬砌¾l“构得到有效的支撑。嵌拱(轨)加固可根据实际需要直接在衬砌外施作,也可以在原衬砌内凿槽安装åQŒå…·ä½“施作方式可æ ÒŽ®ç´§æ€¥ç¨‹åº¦ã€åŠ å›ºç›®çš„、徏½{‘限界因素综合选定ã€?nbsp;<br /> <br />     3.套拱加固技æœ?nbsp;<br />     隧道净½Iºå…è®æ€¸”衬砌¾l“构存在一定的承蝲能力æ—Óž¼Œåœ¨æ—¢æœ‰è¡¬ç Œå¤–重新施作套拱¾l“æž„åQŒæ–°æ–½ä½œ¾l“构与原¾l“构形成一体共同承担围岩压力,在充分利用原有结构承载力基础上,保证隧道安全。按照套æ‹Þq»“构施作范围不同,可分为整体式套拱和和局部套拱。需注意åQŒå¥—拱施作前需凉K™¤éƒ¨åˆ†æˆ–局部æ؜凝土¾l“æž„åQŒåº”保证原结构与新施作结构有效连接。套拱可通过模筑混凝土施工,也可用喷ž®„(钢纤¾l´ã€ç¢³¾U¤ç»´åQ‰æ؜凝土方式施作åQŒå–·ž®„æ؜凝土æ·ÕdŠ é’¢çº¤¾l´å’Œ¼„³çº¤¾l´å¯æœ‰æ•ˆå¢žå¼º¾l“构承蝲能力åQŒå‡ž®‘套æ‹Þq»“构厚度ã€?br /> <br />     4.衬砌换拱 <br />     隧道原有¾l“构已失åŽÀL‰¿è½½èƒ½åŠ›æˆ–¾l“构净½IÞZ¸å…è®¸æ—Óž¼Œä¸”采用钢带、嵌æ‹Þq­‰æ— æ³•ä¿è¯æ‰¿è²èƒ½åŠ›æ—Óž¼Œéœ€ž®†åŽŸæœ‰è¡¬ç Œç»“构拆除åƈ更换。与衬砌套拱¾cÖM¼¼åQŒè¡¬ç Œæ›´æ¢å¯åˆ†äؓ整体全换和局部结构更换。换æ‹Þq»“构加固除上述病害处治技术外åQŒæ–°ææ–™ã€æ–°æŠ€æœ¯å’Œæ–°å·¥è‰ºåœ¨æˆ‘国公èµ\隧道衬砌加固工程也得åˆîCº†ž®è¯•å’Œåº”用,喷射¼„»I¼ˆé’¢ï¼‰¾U¤ç»´æ··å‡åœŸåŠ ¾|‘片、粘¼„»I¼ˆèŠ³çº¶åQ‰çº¤¾l´æ¿åQˆå¸ƒåQ‰æ³•ã€ç²˜é’¢æ¿æ³•ç­‰æ–ÒŽ³•ä¹Ÿåœ¨ä¸åŒçš„公路隧道、地下铁道的病害处治工程得到了应用ã€?nbsp;<br /> <br />     éš§é“修复技术应用条件不ž®½ç›¸åŒï¼Œæ–ÒŽ¡ˆé€‰æ‹©æ—‰™œ€¾l¼åˆè€ƒè™‘衬砌¾l“构裂损½E‹åº¦ã€æŠ€æœ¯æ–¹æ¡ˆå·¥è‰ºå¤æ‚性、造ä­h、施工周期、营˜qåŽ‹åŠ›ã€æ˜¯å¦å¿…™åÖM¸­æ–­äº¤é€šã€ä¿®å¤æ–¹æ¡ˆæ˜¯å¦å¯æœ‰æ•ˆå¢žå¼º¾l“构承蝲力、是否能够防止其它åƈ发病宻I¼ˆä¾‹å¦‚渗漏æ°ß_¼‰½{‰ã€?br />     隧道˜qè¥å…ÀLŠ¤æœŸé—´åQŒåœ¨ä¸æ–­å‡ºçŽ°è¡¬ç Œè£‚损和巨大运营压力背景下åQŒå¿«é€Ÿã€ä¸ä¸­æ–­äº¤é€šçš„隧道衬砌裂损处治技术是公èµ\隧道˜qè¥å…ÀLŠ¤çš„迫切需要,是隧道工½E‹ä¸­æ–°çš„研究方向。因此,亟需在现有隧道衬砌裂损病宛_¤„æ²ÀLŠ€æœ¯åŸº¼‹€ä¸Šï¼Œè§£å†³å¿«é€Ÿä¿®å¤æŠ€æœ¯çš„施工工艺和工法、相兛_¤„治装备和讑֤‡çš„研制、施工组¾l‡å’Œäº¤é€šç»„¾l‡ã€æ–½å·¥å˜å½¢é‡‹¹‹ä¸Žç›‘控技术、运营安全防护保障措施等一¾pÕdˆ—问题åQŒå¾ç«‹å®Œå–„的隧道病害快速处æ²ÀLŠ€æœ¯ä½“¾p…R€?br /> </p> <p style="text-align:center;"> <br /> </p> <p style="text-align:center;"> <img src="//cmsimgshow.zhuchao.cc/28056/201801031750213142805664240.png" alt="" /> </p></h3> <div class="n_article_next"> 上一个äñ”品:<a href="/supply/22.html">郑州桥梁加固公司</a>    ä¸‹ä¸€ä¸ªäñ”品:<a href="/supply/20.html">沛_—桥梁加固公司</a> </div> <div class="tag">相关标签åQ?a href='/key.aspx?k=%ba%d3%c4%cf%bc%d3%b9%cc%b9%ab%cb%be'>沛_—加固公司</a>,<a href='/key.aspx?k=%d6%a3%d6%dd%b5%d8%bb%f9%bc%d3%b9%cc%b9%ab%cb%be'>郑州地基加固公司</a>,<a href='/key.aspx?k=%bd%a8%d6%fe%be%c0%c6%ab%b9%ab%cb%be'>建筑¾U åå…¬å¸</a>,</div> <div class="tag">发布旉™—´ : 2018-1-3 0:00:00</div> <div 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