瓦厂坪铝土矿1102工作面综采试验相关影响参数的分析与探讨

瓦厂坪铝土矿开采技术条件与煤矿相近，其采矿方法可借鉴煤矿开采经验，引进综合机械化开采技术，以提高劳动生产率、降低安全风险。但氧化铝厂对铝土矿提供的产品质量要求较高，因此必须在严格控制矿产品的品位和铝硅比的基础上，对影响铝土矿综合机械化开采可行性的相关参数进行论证和分析。金属矿山采用综合机械化采矿技术在国内尚属首次，必须要对其适应性进行试验。瓦厂坪铝土矿1102工作面矿体的倾角大部分在15°～30°之间，平均21°，矿石硬度系数大部分在0.47～1.8之间，地质构造较为简单，顶底板条件与煤矿很接近，同时通过对掘进过程中的样品和地勘资料提供的化学成份进行对比综合分析，若1102工作面采高为2 m时，矿体中Al₂O₃含量＞60%，铝硅比（A/S）＞5.5，2项主要指标均能满足氧化铝厂要求。因此从煤矿开采的经验及相关影响参数的分析来看，瓦厂坪铝土矿1102工作面进行综采技术的适应性试验是可行的。

Analysis and Exploration on Related Influence Parameters of 1102 Fully-Mechanized Mining Work face Trial of Wachangping Bauxite

The mining conditions in Wachangping bauxite are similar with that of the coal mine，and its mining methods can draw lessens from coal mining experience，that is，introducing the fully-mechanized mining technology to improve labor productivity and reduce security risks.Due to higher quality of bauxite required by the alumina plant，the relevant parameters of feasibility for fully-mechanized mining of bauxite are demonstrated and analyzed based on the strict control of mineral products grade and aluminums-silicon ratio.It is the first time for metal mine to adopt the fully-mechanized mining technology in China，so its adaptability should be tested.The dip of ore body at 1102 working face of Wachangping bauxite mostly lies between 15° and 30°，with the average angle of 21°，and the ore hardness coefficient is mostly from 0.47 to 1.8.The geological structure of ore body is simple，and its roof and floor conditions are very close with that of coal mine.At the same time，the comprehensive analysis and comparison on the chemical composition of samples during the tunneling process and the geological data show that if the mining height of 1102 working face is 2m，the content of Al₂O₃ in ore-body will be more than 60% and the aluminum-silicon ratio (A/S) will be more than 5.These two main indexes can meet the requirements of alumina plant.Therefore，according to the mining experience of coal ore and the related influencing parameters，it is feasible to adopt fully-mechanized mining technology in 1102 working face of Wachangping bauxite.