| 地应力测量在矿床突水防治中的应用——以河南夹沟铝土矿床突水防治工程为例 |
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| 关键词:bauxite in situ stress measurement mine water burst Jiagou Henan |
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| The Application of In Situ Stress Measurement to the Prevention of Mine Water Burst: a Case Study of the Water Burst Prevention Project in the Jiagou Bauxite Deposit, Henan Province |
| For the purpose of tackling the mine water burst, the performance of in situ stress measurement is an important method to determine the cause of water burst and find reasonable countermeasures for mine management. Some conclusions can be reached from the measurement: ① There exists high horizontal tectonic stress, whose magnitude is obviously larger than that of the vertical stress. The high level tectonic stress exerts negative influence on the stability of the mine bed and its slope, and the excavation should be arranged in the direction of N70°E for convenience. ② Owing to the continuous excavation, the stress around the mine has been disturbed, and the overlap of the high level of tectonic stress and the induced local stress can accelerate the water conductivity of fissures and structural surfaces, thus serving as an important factor responsible for the water burst of the mine bed. ③ For the prevention of water burst of the mine bed, the management of the mine bed should be strengthened, and the waterproof layer should be pre_arranged reasonably. Recommendation is given in this paper that the concrete injection should be carried out for the mine bed and the deeper carbonate so as to strengthen the fissures and fill in the cave. In this way, the action of stress can be resisted and its effect on the mine water burst can be reduced or eliminated. |
| LI Man-zhou,YU Qiang,GUO Qi-liang,CHEN Qun-ce,AN Qi-mei.2006.The Application of In Situ Stress Measurement to the Prevention of Mine Water Burst: a Case Study of the Water Burst Prevention Project in the Jiagou Bauxite Deposit, Henan Province[J].Acta Geoscientica Sinica,27(4):373-378. |
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