寒區(qū)隧道洞外排水及防凍方案優(yōu)化設(shè)計(jì)
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【摘 要】： 考慮當(dāng)前寒區(qū)隧道以排為主的防水方式容易在隧道洞口范圍發(fā)生凍害，對(duì)一座寒區(qū)隧道洞外排水及防凍設(shè)計(jì)方案進(jìn)行了比選和優(yōu)化，提出一種通過(guò)滲井解決寒區(qū)隧道洞外排水及防凍問(wèn)題的新思路，能夠較好解決寒區(qū)隧道由圍巖裂隙水排放引起的凍害問(wèn)題，同時(shí)減少了地下水的流失。
【關(guān)鍵詞】： 寒區(qū)；隧道；滲井；排水；防凍
【中圖分類號(hào)】：U453.6 【文獻(xiàn)標(biāo)志碼】：C 【文章編號(hào)】：1008-3197（2023）06-34-04
【DOI編碼】：10.3969/j.issn.1008-3197.2023.06.010
Optimal Design of Drainage and Antifreezing Scheme Outside Tunnel
in High Cold Area
QIAO Jiangang， ZHENG Shaohua， HE Zhiwei， WANG Rongxin
（Tianjin Municipal Engineering Design & Research Institute Co.Ltd.， Tianjin 300392，China）
【Abstract】：Considering the waterproofing method mainly based on drainage is prone to freezing damage within the tunnel portal area in cold regions， this paper compared and optimized the drainage and antifreeze design scheme of a tunnel which is in cold region， and proposed a new approach to solve the problem of freezing damage caused by the drainage of surrounding rock fissure water in cold region tunnels through seepage wells. This approach can effectively solve the problem of freezing damage caused by the drainage of surrounding rock fissure water in cold region tunnels，at the same time， it also reduces the loss of groundwater.
【Key words】：cold area；tunnel；seepage well；drainage；antifreeze
近年來(lái)，隨著我國(guó)公路事業(yè)長(zhǎng)足發(fā)展，公路隧道里程呈加速增長(zhǎng)趨勢(shì)，越來(lái)越多的寒區(qū)隧道進(jìn)入工程建設(shè)序列[1]。（剩余3244字）