土工基础

›› 2015, Vol. 29 ›› Issue (1): 102-105.

• 工程实录 • 上一篇    下一篇

江西吉安县某特大桥桥址古岩溶发育特征及稳定性初步研究

徐燕华   

  1. （中铁第四勘察设计院集团有限公司，武汉 430063）
  • 收稿日期:2014-12-07 出版日期:2015-02-20 发布日期:2015-03-13
  • 作者简介:徐燕华（1984-），男，工学硕士，工程师。主要从事铁路工程勘测与设计。

A Preliminary Study of the Characteristics Paleokarst and the Stability of A Bridge Site In Ji′an County, Jiangxi Province

XU Yanhua
   

  1. (China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan, 430063)
  • Received:2014-12-07 Online:2015-02-20 Published:2015-03-13

摘要： 以江西省吉安地区某特大桥现场勘测为实例，通过对区域地质资料较为详实的研究，并结合现场综合勘探成果，综合分析了江西吉安县地区覆盖型古岩溶的地质成因、发育特征和发育形态，并初步分析了桥址区古岩溶的发展趋势和场地稳定性，为拟建工程的设计及施工提供了有效的依据。

关键词: 江西省吉安地区, 覆盖型岩溶, 古岩溶, 发育特征及形态, 发展趋势, 场地稳定

Abstract: This paper presents the geotechnical characterization results of the palokarst at an extralarge bridge site in Ji′an, Jiangxi Province. The regional geological information and field geotechnical investigation data are evaluated. The geological origin, development as well as consequence aspects of the palokarst that deposits within Ji′an region are summarized in the paper. The stability of the karst within the project site and the karst development are also evaluated for the bridge design and construction purposes.

Key words: Ji′an County of Jiangxi Province； Karst Deposits；Palaeokarst；Karst Developments； Trend of Developments, Site Stability