平顶山矿区地应力分布规律与空间区划研究

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摘要深埋地下工程往往面临着高地应力环境，在研究平顶山矿区区域地质构造演化规律的基础上，通过搜集平顶山矿区多组深部岩体地应力实测资料，得出矿区范围内地应力场的分布规律。按平顶山矿区地应力场类型和分布特点对其进行空间区划，将整个矿区划分为三部分，分别为西南部I区(自重应力场为主)、中部II区(构造应力场为主，水平构造应力影响微弱)和东部III区(构造应力场为主，且水平构造应力影响显著)，并对每个分区的地应力分布特征及与地质构造的关系进行深入研究。为验证空间区划结果的科学性和合理性，采用空心包体应力解除法对9个测点进行现场地应力测试，结果表明：现场实测结果与空间区划结果具有较好的一致性。研究结果可为平顶山矿区井田开拓、巷道布置与支护设计等工程实践提供可靠的基础参数，提高工程设计的科学性、合理性与可靠性。

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关键词 ：采矿工程, 深部地下工程, 岩石力学, 地应力, 空心包体应变计, 空间区划

Abstract：Deep underground projects are usually connected with high in-situ stress environment. Based on the research on the evolution law of geologic construction for Pingdingshan mining area，local measurement information on in-situ stress of deep stratum were collected for the mining area，and the distribution of in-situ stress was analyzed. According to the type of in-situ stress field and the distribution characteristics for the mining area，spatial division was performed with three parts：Southwest area，I，where the self-weight stress field plays an important role in this area；Middle area，II，where the construction stress field is important，and the horizontal tectonics stress is faint；East area，III，where the construction stress field is important，and the horizontal construction stress field is important. Furthermore，the distribution characteristics and the relationships between the characteristics and geologic structures of each area were investigated. To validate the results of spatial division，hollow stress relaxation method was adopted，and in-situ stresses of nine points were tested locally at different positions and depths. It was found that the local measurement results are in good agreement with those of spatial division on in-situ stresses for the mining area. The result could provide dependable information for mine field exploration，laneway layout and support design of Pingdingshan mining area，and improve the scientific significance，rationality and reliability of engineering design.

Key words： mining engineering deep underground projects rock mechanics eostress ollow inclusion strain cells patial division

收稿日期: 2013-05-24

引用本文:

王迎超1，2，靖洪文1，2，陈坤福2，蔚立元2. 平顶山矿区地应力分布规律与空间区划研究[J]. 岩石力学与工程学报, 2014, 33(sl): 2620-2627.
WANG Yingchao1，2，JING Hongwen1，2，CHEN Kunfu2，WEI Liyuan2. STUDY OF DISTRIBUTION REGULARITIES AND REGIONAL DIVISION OF IN-SITU STRESSES FOR PINGDINGSHAN MINING AREA. , 2014, 33(sl): 2620-2627.

链接本文:

http://www.rockmech.org/CN/Y2014/V33/Isl/2620

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