地理科学 ›› 1993, Vol. 13 ›› Issue (1): 34-40,95.doi: 10.13249/j.cnki.sgs.1993.01.34

• 论文 • 上一篇    下一篇

宽谷区岩溶发育及其水动力特征研究

宋汉周, 彭汉兴, 王建平   

  1. 河海大学 南京 210024
  • 收稿日期:1991-10-01 出版日期:1993-01-20 发布日期:1993-01-20

CHARACTERISTICS OF KARST DEVELOPMENT AND DYNAMICS OF GROUNDWATER IN WIDE VALLEY

Song Hanzhou, Peng Hanxing, Wang Jianping   

  1. Hehai University, Nanjing 210024
  • Received:1991-10-01 Online:1993-01-20 Published:1993-01-20

摘要: 以长江主要支流之一——清江下游的高坝洲水利枢纽工程为例,探讨了宽谷区岩溶发育及其水动力特征.指出由于地形缓、高差小,因而地表岩溶相对发育;在近岸区存在着"潜流型管道系统",具有纵向导水性强,比降小,排泄点出露高程低等特点,因而是库、坝区防渗的重要部位之一.

Abstract: Some characteristics of kast development amd the corresponding dynamic properties of groundwater in a wide valley are studied.It is pointed out that the karst on the surface was quite developed and the relative unobstruted depth of karst developing was small because of the special topographic condition.It is also pointed oot that the karstic piping systems which usually contain the unconfined flow exist in the area close to the river,and along the system have big transmission capacity,small gradient,etc.Therefore,they would be the important domains in which the anti-leakage steps need to be taken.Finally,the formation of the double or more than double goundwater levels,which may occur in the process of drilling,is analyzed and its significance is discussed briefly.