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对于一个加固公司来说,隧道的施工是很不方面的,需要面对众多不适,不像在地面上作业那么的方便,所以在进行隧道施工的时候,有很大的必要看环境选取一个有效的施工方法,省时省力何乐而不为呢,下面就?strong><a href="http://zhayiyang.net/" target="_blank">河南加固公司</a></strong>的隧道施工员为大家讲讲,应该如何选择施工方法?br /> <div style="text-align:center;"> <img src="/uploads/image/20190423/20190423171231_8814.jpg" alt="" /> </div>     1、全断面开挖法:开挖断面与作业空间大、干扰小;有条件充分使用机械,减少人力;工序少,便于施工组织与管理,改善劳动条件;开挖一次成形,对围岩扰动少,有利于围岩稳定?br />     2、台阶法施工:可以有足够的工作空间和相当的施工速度。但上、下部作业有干扰;台阶开挖虽增加对围岩的扰动次数,但台阶有利于开挖面的稳定。尤其是上部开挖支护后,下部作业就较为安全,但应注意下部作业时对上部稳定性的影响?br />     3、环形开挖留核心土法:环形开挖进尺宜?.5-1.0m,核心土面积应不小于整个断面面积?0%;开挖后应及时施工喷锚支护、安装钢架支撑,相邻钢架必须用钢筋连接,并应按施工要求设计施工锁角锚杆;围岩地质条件差,自稳时间短时,开挖前应按设计要求进行超前支护;核心土与下台阶开挖应再上台阶支护完成后、喷射混凝土达到设计强度?0%?br />     4、双侧壁导坑法:侧壁导坑开挖后方可进行下一步开挖。地质条件差时,每个台阶底部均应按设计要求设临时钢架或临时仰拱;各部开挖时,周边轮廓应尽量圆顺;应在先开挖侧喷射混凝土强度达到设计要求后在进行另一侧开挖;左右两侧导坑开挖工作面的纵向间距不宜小?5米;当开挖形成全断面时应及时完成全断面初期支护闭合;中隔壁及临时支撑应在浇筑二次衬砌时逐段拆除?br /> <div style="text-align:center;"> <img src="/uploads/image/20190423/20190423171243_7568.jpg" alt="" /> </div>     以上就是<strong><b>河南加固公司</b></strong>面对隧道施工时一般所采用的一些方法,当然还有其他的一些方法,只是这几种方法运用的比较多,每一种施工方法都有自己的优点和缺点,同时成本方面也有很大差别,所以在选择施工方法的时候也需要考虑到成本问题,今天就先介绍到这,如果大家有什么不明白的,可以随时来电咨询了解?br />     河南加固公司:http://zhayiyang.net/<br /> <div> <br /> </div> </div> <div class="n_article_next"><div>上一?<a href="349.html">建筑纠偏公司教你如何防复倾的加固技?/a></div> <div>下一?<a href="347.html">郑州地基加固公司叙述地基加固采用强夯法需要注意哪些问?/a></div> </div> <div class="tag">559相关标签?a href='/key.aspx?k=%ba%d3%c4%cf%bc%d3%b9%cc%b9%ab%cb%be'>河南加固公司</a>,<a href='/key.aspx?k=%bd%a8%d6%fe%be%c0%c6%ab%b9%ab%cb%be'>建筑纠偏公司</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>,</div> <div class="clear"></div> </div> <div class="related"> <div class="related_t">相关产品</div> <div class="c_product_b" > <dl> <dt><a href="http://zhayiyang.net/supply/22.html" rel="nofollow"><img src="http://cmsimgshow.zhuchao.cc/28056/201801031752011422805693557.png?path=zhayiyang.net/uploads/cp/201801031752011422805693557.png" alt="郑州桥梁加固公司" /></a></dt> 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