同时通过实测与模型计算相结合，验算了区段煤柱留设尺寸的合理性，并在此基础上探讨了沿空掘巷无煤柱开采的可行性。
Combined with field tests and numerical simulation, the size of section pillar is proved to be reasonable and the feasibility of driving without section pillar is also studied.
研究表明，综放沿空留巷受采场矿压影响时间和程度随留巷煤柱宽度的增加表现出明显滞后现象以及位移和压力增长的不同步现象。
The study indicates that with the increase of the coal pillar width the peak mining stress delays its appearance and the increase of the displacement and stress are not synchronous.
根据七台河矿区具体情况，对各种条件下的防水煤岩柱的留设原则及计算方法进行论述。
Based on the state of Qitaihe mine area, approaches the set rules and calculation methods of water_proof pillar at different conditions.
对沿空掘巷时煤柱的留设问题进行了分析和计算。
This paper analyzed and calculated width of coal pillar for driving roadway along gob.
文章通过对条带充填开采煤柱载荷和煤柱强度的理论分析，提出了条带充填开采所需留设的合理煤柱尺寸及开采宽度。
Through theoretical analyses of the pillar stress and pillar strength in the pillar-and-stripe mining with backfilling, the rational pillar size and mining stripe opening are deter - mined.
第四纪底砾层直接覆盖在谢桥煤矿煤系地层之上，其隔水性能影响到防水煤柱的合理留设。
The main target coal seam of Xieqiao Mine is directly covered with the Quaternary bottom gravels, whose impermeability affects the reasonable retainment of waterproof pillar.
研究成果为类似条件综放开采留煤柱护巷煤柱合理宽度的确定提供了科学依据。
The research result will provide some scientific references for preserving reasonable coal pillar for the similar mine coals.
留设保护煤柱是防止建筑物受采动损坏的最常用方法。
It is the most common way to remain coal safety pillar for protecting surface buildings from mining damage.
输出了多因素指数分析图和留设安全煤柱的区划指标等级稳定性图。
The dissertation draws the analytic map about the multifactor indices and the stability diagram about zoning indices rank of setting up the security coal pillar .
该研究表明，在富水性较强的古河道发育位置，要合理留设防水煤岩柱，才能保证煤矿安全生产。
Through above research, in the old river channel where water-abundance is good, the pillar must be suitably left for the safe of mining.
本文采用代数射线法留设保护煤柱。
This paper offer the algebra ray method to preserve protective coal pillar.
留设保护煤柱时，底板岩巷应位于集中应力区的外侧或跨采时工作面应推过足够距离，使巷道靠近采空区应力恢复区的下方。
The floor roadway should be located out of the abutment stress zone when protection coal pillar is retained, or the working face should be pushed away for enough distance under overhead mining.
长壁留煤柱支撑法开采的关键技术是区分两类不同性质的煤柱，即区内煤柱和区域间的隔离煤柱。
The key technology of longwall remaining coal pillars support mining is to distinguish two kinds of coal pillars of different character between regional coal pillar and isolated coal pillar.
在此基础上推导出采场断层防水煤柱留设计算公式，并用实例验证该公式的合理性。
The formulas to design safe pillar against water-inrush from faults are achieved according to above results and a case study shows that the formula is reasonable.
在此基础上推导出采场断层防水煤柱留设计算公式，并用实例验证该公式的合理性。
The formulas to design safe pillar against water-inrush from faults are achieved according to above results and a case study shows that the formula is reasonable.
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