欢迎访问《硅酸盐通报》官方网站,今天是

硅酸盐通报 ›› 2026, Vol. 45 ›› Issue (9): 3083-3091.DOI: 10.16552/j.cnki.issn1001-1625.2026.0214

• 水泥混凝土 • 上一篇    下一篇

盐渍土环境山岭隧道衬砌混凝土抗侵蚀提升技术对比研究

万桂军1,2(), 郭政3(), 刘昶4, 穆松3, 代金鹏5, 刘荣欣1,2, 杨京1,2, 王旭东1,2   

  1. 1.中海建筑有限公司,深圳 518000
    2.贵州雷榕高速公路投资管理有限公司,贵州黔东南苗族侗族自治州 556000
    3.江苏苏博特新材料股份有限公司重大基础设施工程材料全国重点实验室,南京 211103
    4.河南高速铁路有限公司,郑州 450003
    5.兰州交通大学土木工程学院,兰州 730070
  • 收稿日期:2026-03-10 修订日期:2026-04-28 出版日期:2026-09-15 发布日期:2026-10-09
  • 通信作者: 郭政,工程师。E-mail:guozheng@cnjsjk.cn
  • 作者简介:万桂军(1984—),男,高级工程师。主要从事公路工程施工技术研究。E-mail:gjwan@cohl.com
  • 基金资助:
    中海建筑有限公司科研项目(GZ-KL-005/DSC/X069)

Comparative Study on Anti-Erosion Enhancement Technologies of Lining Concrete for Mountain Tunnels in Saline Soil Environment

WAN Guijun1,2(), GUO Zheng3(), LIU Chang4, MU Song3, DAI Jinpeng5, LIU Rongxin1,2, YANG Jing1,2, WANG Xudong1,2   

  1. 1.China Overseas Construction Limited,Shenzhen 518000,China
    2.Guizhou Leirong Expressway Investment Management Co. ,Ltd. ,Qiandongnan Miao and Dong Autonomous Prefecture 556000,China
    3.State Key Laboratory of Engineering Materials for Major Infrastructure,Jiangsu-Sobute New Materials Co. ,Ltd. ,Nanjing 211103,China
    4.Henan High Speed Railway Co. ,Ltd. ,Zhengzhou 450003,China
    5.School of Civil Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China
  • Received:2026-03-10 Revised:2026-04-28 Published:2026-09-15 Online:2026-10-09

摘要:

在西部盐渍土环境隧道工程建设中,衬砌混凝土服役环境与施工工况复杂,隧道工程施工安全性与耐久性面临严峻的挑战。为探明抗侵蚀提升技术的适用场景,本文综合评价了典型抗侵蚀防腐剂和抗侵蚀抑制剂对隧道衬砌混凝土空气渗透系数、碳化深度、水压渗透深度、吸水率及快速氯离子迁移系数与电通量的影响。研究结果表明:抗侵蚀防腐剂可细化混凝土毛细孔结构,显著降低混凝土水压渗透深度和空气渗透系数,同时提高混凝土抗硫酸盐侵蚀性能;抗侵蚀抑制剂可降低混凝土亲水性,显著降低混凝土的0.5 h吸水率(降幅约57%),同时显著提升干湿循环、半浸泡条件下混凝土抗硫酸盐侵蚀性能。对比上述两种抗侵蚀提升技术,抗侵蚀防腐剂在提升混凝土致密性方面优于抗侵蚀抑制剂,适合于有外部水压力、气体压力或电场作用下混凝土抗介质渗透性能提升;抗侵蚀抑制剂在降低混凝土亲水性方面优于抗侵蚀防腐剂,适合于干湿交替或半浸泡等毛细吸附作用下混凝土抗离子侵蚀性能提升;针对盐渍土环境山岭隧道衬砌的不同服役工况与性能要求,建议采用相对应的混凝土抗侵蚀提升技术。

关键词: 隧道工程, 衬砌混凝土, 耐久性, 抗侵蚀防腐剂, 抗侵蚀抑制剂, 提升技术

Abstract:

In the construction of tunnel engineering in saline soil environments of western China, the service conditions and construction practices for lining concrete are complex, posing significant challenges to both construction safety and durability. To identify the applicable scenarios of anti-erosion enhancement technologies, this study comprehensively evaluated the effects of environmental corrosion-resistance admixture and erosion inhibitor on the air permeability coefficient, carbonation depth, water penetration depth, water absorption, rapid chloride migration coefficient, and electric flux of tunnel lining concrete. The results show that the environmental corrosion-resistance admixture refines the capillary pore structure of concrete, significantly reduces the water penetration depth and air permeability coefficient, and improves sulfate corrosion resistance. The erosion inhibitor reduces the hydrophilicity of concrete, markedly decreasing the 0.5 h water absorption rate (by approximately 57%), while significantly enhancing sulfate erosion resistance under dry-wet cycling and semi-immersion conditions. Comparing the two anti-erosion enhancement technologies, the environmental corrosion-resistance admixture is superior in improving concrete compactness, making it suitable for enhancing resistance to medium permeation under external water pressure, gas pressure, or an electric field. The erosion inhibitor is superior in improving concrete hydrophobicity, making it suitable for enhancing resistance to ion erosion under capillary adsorption conditions such as dry-wet cycling or semi-immersion. Considering the different service conditions and performance requirements of mountain tunnel linings in saline soil environments, it is recommended to adopt corresponding concrete anti-erosion enhancement technologies.

Key words: tunnel engineering, lining concrete, durability, environmental corrosion-resistance admixture, erosion inhibitor, enhancement technology

中图分类号: