摘要
贵州金仁桐高速公路桐梓河特大桥项目主塔处于半山腰地带,附近有12处民居,地质为裸露岩层,无缓冲地形。主塔基础上方有一条既有道路,施工过程中还需对其进行改移和防护。整个仁怀岸桥位处于地质灾害区及房屋、交通密集区的复杂环境下。通过永临结合、主动和被动防护相结合的防护方式对地质灾害区高边坡进行多级防护,快速施工索塔的高边坡爆破开挖。
The main tower of Tongzi River Bridge project of Guizhou jinrentong expressway is located in the hillside,and there are 12 residential houses nearby.The geology is exposed rock stratum,and there is no buffer terrain.There is an existing road above the foundation of the main tower,which needs to be relocated and protected during the construction process.The entire Renhuai bank bridge is located in a complex environment of geological disaster areas and housing and traffic intensive areas.Through the combination of permanent and temporary protection and the combination of active and passive protection,multi-level protection is carried out for the high slope in the geological disaster area,and the blasting excavation of the high slope of the cable tower is carried out quickly.
作者
李兴江
Li Xingjiang(CHINA RAILWAY DEVELOPMENT INVESTMENT GROUP CO.,LTD.,Kunming 650000,China)
出处
《科学技术创新》
2022年第29期60-64,共5页
Scientific and Technological Innovation
关键词
复杂环境
高边坡
多级消能防护
complex environment
high slope
multistage energy dissipation protection
