土工基础

›› 2016, Vol. 30 ›› Issue (2): 171-173.

• 工程实录 • 上一篇    下一篇

山西潞能专用铁路项目综合地质勘察分析

马士举   

  1. (中铁西安勘察设计研究院有限责任公司,西安 710054)
  • 收稿日期:2016-01-27 出版日期:2016-04-20 发布日期:2016-04-27
  • 作者简介:马士举（1982-），男，工程师，研究方向为铁路勘察和路基设计。

Comprehensive Geotechnical Investigations for the Luneng Special Railway in Shanxi

MA Shiju   

  1. （Xi'an Railway Survey and Design Institute Co. Ltd., Xi'an 710054）
  • Received:2016-01-27 Online:2016-04-20 Published:2016-04-27

摘要： 山西潞能专用铁路工程线路由南至北跨越冲洪积阶地、丘陵和中低山区等多种地貌单元，其中特大桥和隧道的勘察是该项目的关键。勘察采用了地质测绘、现场调查、钻探、坑探、工程物探（超高密度电法）等多种原位测试方法、抽水试验及室内岩、土、水的物理力学性质试验等综合勘察方法，合理给出了复杂地层的合理地质参数建议值，确定了隧道围岩的等级划分，为该项目提供了可靠的设计依据。

关键词: 铁路勘察, 特大桥, 马江沟隧道, 特殊土, 综合勘察

Abstract: The Luneng special railway project in Shanxi crosses many geomorphological units, such as, alluvial terraces from the south to the north, rolling hills and middlelow mountainous area. Among these areas, the focus is the investigations of an excessive largespan bridge and a tunnel. Comprehensive geotechnical investigations were performed using geological survey, field investigation, test borings, test pits geophysics (high density electrical resistance method), insitu testing, field pumping tests as well as laboratory testing on soil, rock and water samples. The design parameters were therefore determined and the surrounding rock mass for the tunnel was able to be categorized.

Key words: Railway Geotechnical Investigations, Excessive Large Span Bridge, Majianggou Tunnel, Special Soils, Comprehensive Investigations