公路小净距隧道技术之刍议  

Dispute of Technique for Tunnel with Small Cearance on Highway

作　　者：林立彬[1] 万明富[1] 张兆杰[1] 

机构地区：[1]辽宁省交通勘测设计院,沈阳110005

出　　处：《北方交通》2009年第1期136-139,共4页Northern Communications

摘　　要：阐述了公路小净距隧道的起源,在总结现代小净距隧道设计、施工技术的基础上,提出了小净距隧道技术研究应遵循近接工程的技术路线和研究方法,在确定不同地形、地质条件下隧道临界宽度(即近接准则)的前提下,确定相应的施工方案、减震措施和支护衬砌型式。强调施工方案研究是小净距隧道技术研究的根基,并专门对小净距隧道的施工方案的研究做了深入探讨。提出用"水袋原理"指导中间岩柱加固的思路,用"削峰原理"指导断面开挖顺序的拟定。The paper expounds origion of tunnel with small clearance on highway. On the basis of summing up the design of modern tunnel with small clearance and the construction techniques, the paper puts forward the study of techniques for tunnel with small clearance cought to follow the technical line and the studying method of near join engineering. Under determination of tunnel critical width（ namely acconding to near join criterion）with different topography and geology, the paper fixes the appropriate construction schemes, the quake absorption and the supporting - linning type. It lays stress on the stugy of construction schemes is the foundation of study of techniques for tunnel with small clearance, and it yet specially deeply approaches the construction plan for present tunnel. And it poses also the train of thought of reinforcing the central column rock by ＂Water Bag＂ method, and instructing the section excavation order by ＂Precipice Principle＂.

关 键 词：小净距隧道 发展 研究 施工方案 

分 类 号：U451.4[建筑科学—桥梁与隧道工程]