| 运营高速公路下煤矿采深、采厚对路基的破坏影响分析 |
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| 引用本文： | 张普纲,沈力广.运营高速公路下煤矿采深、采厚对路基的破坏影响分析[J].山东科技大学学报(自然科学版),2014(6):63-68. |
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| 作者姓名： | 张普纲 沈力广 |
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| 作者单位： | 山西省交通科学研究院黄土地区公路建设与养护技术交通行业重点实验室;山东华宁矿业集团有限公司; |
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| 基金项目： | 山西省交通厅科技计划项目(07-05) |
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| 摘 要： | 对于下伏煤炭资源的高速公路而言,必须及时掌握煤矿地下开采对其运营安全的影响。在分析一般公路下煤炭开采影响公路路基相关因素的基础上,综合研究采深、采厚因素对路基的影响,重点通过数值模拟手段分析采深采厚比对高速公路路基的影响,得出采深采厚比大于180∶1时,地下采煤所引起的地表变形对路基结构的破坏变形远小于一级保护建筑物容许的极限变形值,从而得出可以在高速公路下试采,最终全采的结论。
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| 关 键 词： | 采深 采厚 高速公路路基 数值模拟 破坏 |
Effect of Underground Mining Depth and Mining Height on the Damage of Expressway Roadbed |
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| Institution: | Zhang Pugang, Shen Liguang ( 1. Key Laboratory of Highway Construction ＆ Maintenance Technology in Loess Region, Shanxi Transportation Research Institute, Taiyuan, Shanxi 030006, China ; 2. Shandong Huaning Mining Group Co. Ltd,Taian,Shandong 271401 ,China) |
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| Abstract: | For coal mining under expressways, the effect of the underground coal mining on expressway construction and operation safety is of great importance. This paper analyzed the general influencing factors of underground coal mining on expressway roadbed. The effect of mining depth and mining height on the damage of expressway roadbed was discussed through the numerical simulation method. The effect of underground mining on roadbed was minimal when the ratio of mining depth and thickness was greater than 180 ： 1. The surface deformation value caused by un- derground mining was much less than a certain limit deformation value of first grade state protection buildings. The results show that pilot production and clean mining can be carried out under expressways. |
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| Keywords: | mining depth mining height roadbed of highway numerical simulation damage |
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