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贵州泓阳交通建设工程有限责任公司

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№ CN122919424AInvention
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一种依托新建隧道明洞拆除既有隧道明洞的施工方法

本发明涉及一种依托新建隧道明洞拆除既有隧道明洞的施工方法，属于既有隧道改扩建施工技术领域。该方法包括：新建隧道明洞并预留吊装孔洞后并养护成型；依托新建隧道明洞隔离，对既有隧道明洞预钻孔划分拆除单元，然后在既有隧道明洞对应位置钻设吊装孔，采用绳锯静态切割分块；利用新建隧道明洞的预留吊装孔洞与既有隧道明洞钻设的吊装孔竖向对位，配套钢绞线贯穿孔洞绑定切块，将切块竖直下放至新建隧道明洞内部封闭空间清运出场。本发明以新建隧道明洞为刚性隔离屏障、受力承载主体和封闭式清运通道，全程无飞石、无震动、无外溢，无需大型外部吊装设备，施工安全高效，适用于单幅保通、临近运营隧道且禁止爆破破碎的改扩建工程。

❖贵州路桥集团有限公司; 贵州泓阳交通建设工程有限责任公司冉毅; 杨波; 刘勇; 张朝强; 欧军; 王国丰; 朱志大; 白建雄; 赵荣华; 靳俊奇; 旷泽; 吴栋; 黄安全; 沈贵琳; 谢雷; 张友智; 韩端; 王堰Oct 16, 2026§ 1/10 ClaimsE21D 9/14 (2006.01), E21D 9/10 (2006.01), E21D 11/38 (2006.01) +228