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豫西宣化建筑石料矿地质特征及开采技术条件分析

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豫西宣化建筑石料矿床主要赋矿层位为中寒武统张夏组和上寒武统崮山组,矿体主要由白云质灰岩、灰岩构成.通过分析矿床地质特征和开采技术条件,认为该区水文地质、工程地质及环境地质条件均属简单型;矿床开采技术条件良好,设计采用 自上而下分露天台阶式开采,可避免形成陡壁和悬崖,减少节理裂隙造成的岩石滑落.
Analysis of geological characteristics and mining technology conditions of building stone deposit in Xuanhua,Western Henan
The main ore-bearing strata of Xuanhua building stone deposit in western Henan are Middle Cam-brian Zhangxia Formation and Upper Cambrian Gushan Formation.The ore body is mainly composed of do-lomitic limestone and limestone.By analyzing the geological characteristics and mining technical conditions of the deposit,it is considered that the hydrogeological,engineering geological and environmental geological conditions of the area are simple.The mining technical conditions of the deposit are better.Adopting the de-sign with top-down open-pit stepped mining,which can avoid the formation of steep walls and cliffs,and re-duce the rock slip caused by joint cracks.

building stonegeological characteristicsmining technical conditionsXuanhuawestern Henan

魏鸿、胡伟、张东阳、许旷忠

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河南省第三地质大队有限公司,河南郑州 451464

建筑石料 地质特征 开采技术条件 宣化 豫西

河南省矿产资源国情调查项目

豫自然资办函[2020]22号

2024

矿产与地质
桂林矿产地质研究院

矿产与地质

CSTPCD
影响因子:0.42
ISSN:1001-5663
年,卷(期):2024.38(5)