甘肃省康县—略阳高速公路花桥隧道地质特征及隧道稳定性研究
Study on geological characteristics and tunnel stability of Huaqiao Tunnel of Kang County-Lueyang County Expressway
赵梦1
作者信息
- 1. 甘肃省地质矿产勘查开发局第二地质矿产勘查院,甘肃 兰州 730020
- 折叠
摘要
甘肃省康县—略阳高速公路花桥隧道隧址区位于杨子板块北缘西段,为构造剥蚀低中山区,属构造复杂区.通过场地工程地质调查,隧道进出口端洞口边坡稳定性较差,洞体围岩复杂.洞体由Ⅳ、Ⅴ级围岩构成,其中Ⅳ级分布长度为1040 m,占洞体围岩总量的65.2%,Ⅴ级分布长度为556 m,占洞体围岩总量的34.8%,围岩稳定性较差—较好.在隧道施工时,对洞口边坡及隧道采取适当的防护后,基本适宜拟建工程建设.
Abstract
The Huaqiao Tunnel of the Kang County-Lueyang County Expressway is located in the western segment of the northern margin of the Yangzi Plate,which belongs to the structural denudation low Zhongshan District,Taipei area,characterized by complex geological features.A site engineering geological investigation revealed poor slope stability at the entrance and exit of the tunnel,with the surrounding rock of the tunnel being complex.The tunnel is comprised of Grade IV and V surrounding rock.Grade IV has a distribution length of is 1 040 m,accounting for 65.2%of the total surrounding rock,while Grade V spans 556 m,accounting for 34.8%of the total surrounding rock.The stability of the surrounding rock ranges from poor to good.During tunnel construction,appropriate protective measures are taken for the entrance slope and tunnel to make the site more suitable for construction.
关键词
花桥隧道/工程地质特征/断层/稳定性研究Key words
Huaqiao Tunnel/engineering geological characteristics/fault/stability study引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据