The deformation of mining roadway which caused by the mining is produced mainly by the abutment pressure.
在回采引起的巷道变形中,回采引起的支承压力是主要因素。
The result shows that there are two stress peaks in the abutment pressure and its magnitude and location are affected by the mining.
得出了超前支承压力存在两个峰值,其峰值大小、位置受煤层采动影响的变化规律。
On the basis of model's results, effects in top-coal smash, and changes of peak value of abutment pressure within mining range are analyzed.
根据模拟结果,分析了开采范围内支承压力峰值的变化及对顶煤破碎的影响。
Ranges of fractured strata and high stress distribution of abutment pressure are all depend on the degree of mining disturbance on stope strata.
采动围岩破裂范围和支承压力高应力分布范围取决于开采对岩层的扰动程度。
Accordingly, the distribution of abutment pressure on the block coal pillar is measured at working face with a steeply inclined seam of the12010 face, NO.
据此原理,实测得到了平煤集团十三矿12010大倾角综放开采工作面走向支承压力和区段煤柱侧向支承压力分布。
The result indicated That the abutment pressure distribution form was similar to that of slicing mining method but its magnitude and affecting range changed.
结果表明,放顶煤采煤法其支承压力分布形式与分层开采法类似,但在量值及影响范围上有增减。
Based on in situ measurement with sub-level caving mining, the characteristics of top-coal deformation and top-coal deformation vs abutment pressure are mainly discussed.
以放顶煤开采现场实测为基础,着重探讨了顶煤的变形特征、顶煤变形与支承压力的关系;
Based on field measurement, the authors describe zone of influence of abutment pressure, rules of its change, loosening of the surrounding rock and the stability of roadways.
本文以现场量测为依据,论述了岩石巷道的锚喷支护受采动影响时,移动支承压力的影响范围、变化规律、围岩松动以及巷道稳定性等。
The high abutment pressure on the integrated coal beside the roadway is one of the reasons to lead to floor heave and affect the stability of the roadway driving along next goaf.
实体煤帮的高支承压力是影响沿空掘巷稳定性的主要原因之一。
The lag distance of abutment pressure behind working face increases, but the convergence coefficient of vertical stress doesn't change obviously with the increase of mining height.
分层开采与综放开采工作面滞后支承压力变化规律是,随着采高的增大,工作面滞后支承力的距离加大,垂直应力集中系数差别不大。
The results show that the abutment pressure distribution on coal pillar is the direct reflection of abutment stress induced by mining on the interfaces of coal seam and immediate roof.
研究结果表明,煤柱上支承压力分布是开采影响岩层相互作用的结果,是开采引起集中应力在煤层与直接顶界面上的直接反映。
The differences between the coal drawing face and non-coal drawing face are low stowing factor in the goaf, vigorous movement of roof, and high stress peak abutment pressure along the strike.
放顶煤工作面与非放顶煤工作面的区别是,采空区充填系数小,顶板岩层运动剧烈,走向方向超前支承应力峰值较大。
Field practice shows that the method of making loose blasting deeply in the area of the mining abutment pressure can control the entry floor heave effectively and meet the need of the production.
现场实践表明,采用底板支承压力区进行深部松动爆破能有效控制回采巷道底鼓,满足生产需要。
Bridge support is a force transfer device installed at support of bridge structure with pier (or abutment). It is a kind of the structural parts that can bear high pressure.
桥梁支座是在桥梁结构与桥墩(或桥台)的支承处所设的传力装置,是一种承受高压力的结构部件。
The results of field test indicate that the earth pressure of abutment, different from linear distribution of Coulomb's, acts as parabolic type.
现场测试结果表明,台背土压力大致呈“抛物线型”分布,与库仑土压力理论的线性分布不同。
This paper analyzes the mechanism of the deep layer 'pressure water 'in the hill of the major dam abutment of Shenzhen reservoir and discusses the phenomenon of' pressure water '.
本文对深圳水库主坝坝头小山包所出现的深层“承压水”现象的机理进行了分析。并对“承压水”现象作一些探讨。
By analyses, a simplified calculation method of active earth pressure on back of abutment UN der earthquake condition has been put forward. Calculating results prove the reasonable of this method.
通过分析,本文提出了地震条件下桥台台背主动土压力简化计算方法,计算结果表明了这一公式的合理性。
The non-abutment slant-legged rigid frame bridge is similar to mansard arch bridge, the soil pressure of the diagonal rod at both ends of bridge forms a couple of arch thrust.
无桥台斜腿刚架桥是一种新的桥型,因其适用、经济、美观等方面的独特优势,近几年在工程领域中已有较为广泛的应用,但理论研究相对滞后。
The non-abutment slant-legged rigid frame bridge is similar to mansard arch bridge, the soil pressure of the diagonal rod at both ends of bridge forms a couple of arch thrust.
无桥台斜腿刚架桥是一种新的桥型,因其适用、经济、美观等方面的独特优势,近几年在工程领域中已有较为广泛的应用,但理论研究相对滞后。
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