| 矾山磷矿岩体工程地质岩组研究 |
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| 引用本文： | 边振辉.矾山磷矿岩体工程地质岩组研究[J].化工矿产地质,1993(3). |
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| 作者姓名： | 边振辉 |
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| 作者单位： | 河北省矾山磷矿 |
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| 摘 要： | 研究了井下开采的矾山内生层状磷矿岩体工程地质岩组的稳定性,根据该矿工程地质现象、矿层及其固岩的自然特征和组合形式,确定该矿岩体工程地质岩组的划分准则,将其岩体工程地质岩组划分为5个大组10个亚组,对每个亚组的岩体稳定性和巷道支护方式进行探讨。研究表明,该矿的软岩夹层是造成岩体不稳定的主要因素,水文地质条件和地质构造发育情况对岩体稳定性也产生一定的影响。由于每个岩组的岩体稳定性受一定的地质规律控制,岩组的岩体稳定性的划分具有可类比性和空间分布可预见性,因而本文的研究对巷道支护的设计和施工其有指导意义。
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| 关 键 词： | 矾山磷矿 巷道围岩 工程地质岩组 岩体稳定性 软岩 |
ON THE ROCK ASSOCIATION OF THE ROCKBODY'S ENGINEERING GEOLOGY IN FANSHAN PHOSPHORUS DEPOSIT |
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| Abstract: | The stability of the rockbody's engineering geological rock association in theendogenic stratified phosphorus deposit mined underground in Fanshan was studied.By analyzing the engineering geological condition,the natural characteristics andassociation pattern of the orebed and its enclosing rocks,the dividing standards ofrockbody engineering geological rock association was determined,by which the rockassociation was subdivided into 5 group and 10 subgroup.Among each subgroup,therockbody's stability and tunnel-supporting type was studied.It has been found thatthe unstability of rockbody is mainly caused by the soft rock intercalations in thedeposit,with the hydrogeological and tectonic condition also having some effects onthe rockbody stability.The rockbody stability for each rock association type iscontrolled in some way by geological rules,and is correlatable and predictable inspace distribution.Therefore,the present study is helpful to the design andconstruction of tunnel support. |
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