郑州龙湖工程建设中的环境地质问题分析  

The analysis of environmental geological problems in the construction of Longhu Lake in Zhengzhou

作　　者：邓晓颖[1] 陈鸿汉[2] 龚晓凌[1] 高茂生[3] 宋会香[1] 

机构地区：[1]河南省地质矿产勘查开发局第二水文地质工程地质队,河南郑州450053 [2]中国地质大学水资源环境学院,北京100083 [3]青岛海洋地质研究所,山东青岛266071

出　　处：《水利水电科技进展》2009年第1期66-68,89,共4页Advances in Science and Technology of Water Resources

摘　　要：采用野外调查、试验及模拟计算的方法,在分析龙湖区地质背景及现状条件的基础上,对规划龙湖建设前后可能产生的环境地质问题进行综合分析。研究结果表明:龙湖在建设过程中存在潜蚀及边坡失稳的可能;蓄水运行后会引起地下水位抬升,造成湖岸区部分土体密度增大、压缩系数增大、压缩模量减小、c和φ值减小、强度降低、地震液化指数增大、局部地区存在浸没及土壤次生盐渍化等问题。为郑州龙湖工程科学规划及建设提供了一定的地质依据。Based on analysis of the geological background and present situation of I.onghu Lake, environmental geological problems that may occur before and after the construction of Longhu Lake are synthetically analyzed through survey, test and simulation calculations.The research results indicate the possibility of suffosion and dope instability during the construction of I_onghu lake. After impounding and operation, the groundwater level will rise, resulting in some problems, including an increase of density, an increase of compressibility, a decrease of the compression modulus, a decrease in the value of c and φ, a decrease of strength, an increase in the earthquake liquefaction index, lecal submersion, and soil secondary salinization. This study provides a geological basis for the scientific planning and construction of the Longhu Lake project.

关 键 词：地下水 渗透稳定性 地震液化 次生盐渍化 人工湖 龙湖工程 

分 类 号：X524[环境科学与工程—环境工程]