长江科学院院报Issue(8)：72-77,6.DOI:10.3969/j.issn.1001-5485.2015.08.013
普立特大桥隧道锚碇区岩体工程地质特性研究
Geological Characteristics of Rock Masses Engineering in the Tunnel Anchorage Area at Puli Bridge
摘要
Abstract
Puli bridge is a large suspension bridge with a main span of 628 m and tunnel-type anchorage on one side.Rock mass unloading and karst problem are the key issues of engineering geology in the tunnel anchorage area.An exploration hole of 1 20 m long was excavated through the center of the anchorage,and in-situ rock me-chanical test,sonic test and geological description were conducted in the exploration hole.The physical and me-chanical parameters of rock masses and the classification of basic quality of rock masses were obtained.On this ba-sis,the regularities of rock mass unloading and karst development varying with elevation and embedded depth were analyzed.Comprehensive investigation technologies and analysis methods involving ground surface geological sur-vey,geological mapping,drilling,tunnel excavation,pitting,trenching,elastic wave testing,and in-situ testing are explored in view of the possible engineering geological problems of tunnel anchorage in karst region.These tech-nologies provide fundamental data for the design of tunnel anchorage and the stability analysis,and are worth to be popularized in similar works.关键词
普立特大桥/隧道锚碇/岩体卸荷/岩溶/岩体力学试验Key words
Puli bridge/tunnel anchorage/rock mass unloading/karst/rock mass mechanics test分类
建筑与水利引用本文复制引用
喻正富,夏国邦,王世谷,张奇华,杜胜华..普立特大桥隧道锚碇区岩体工程地质特性研究[J].长江科学院院报,2015,(8):72-77,6.基金项目
云南省交通运输厅科技项目（云交科2011（LH）12－a 号） （）
