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采场底板
相关语句
  mining floor
     Forecast of Water Inrush from Mining Floor with Probability Indexes
     用突水概率指数法预测采场底板突水
短句来源
     On the basis of the “four?zone” theory,the occurance of the water inrush from mining floor can be judged.
     根据“四带”理论 ,给出了一个较为完整的采场底板突水与否的判断方法 .
短句来源
  stope sill
     STUDY ON DESIGN OF SAFETY PILLAR AGAINST WATER-INRUSH THROUGH STOPE SILL FAULTS
     采场底板断层防水煤柱留设研究
短句来源
  face floor
     Application of "Four Zone" Theory in Face Floor on Evaluation of Floor Water Inrush
     采场底板“四带”划分理论在底板突水评价中的应用
短句来源
     Under the premise of solid structure,themechanism of undgound pressure,such as the face floor damage and flash flood,the strata movement and separation layerm the acted force of the structure of voussoir and the stable of the key block, and the stability of S R of voussoir beam structure, were analyzed.
     在围岩整体结构思想前提下分析了采场底板破坏与突水,岩层移动与离层,砌体梁结构的受力与关键块体的稳定,砌体梁结构的S—R稳定性等矿压机理。
短句来源
  “采场底板”译为未确定词的双语例句
     FLOOR CLASSIFICATION AND ROOF WEIGHTING PREDICTION IN LONGWALL STOPE BASED ON NEURAL NETWORKS
     基于神经网络的采场底板分类与顶板来压预报
短句来源
     Test Study on Penetrabillty of Floor Rock in Stope
     采场底板岩石渗透性试验研究
短句来源
     The mechanism of water inrush from coal floor in longwall face is simulated by the similar material tests.
     利用相似材料模拟试验,模拟了采场底板突水机理。
短句来源
     RESEARCH ON THE TESTS OF WATER INRUSH FROM FLOOR SIMULATED BY SIMILAR MATERIALS
     采场底板突水相似材料模拟研究
短句来源
     Theoretical study of four?zone division of mining floor
     采场底板“四带”划分理论研究
短句来源
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    Observations have been made for a long time and in a wide range on deformation and failure of floor strata of deep tunnels. Floor strata movement, front abutment stress and floor rock osmosis were observed. Based on data of displacement observed and statistical data of in-situ rock stress, back analysis of displacements is made to obtain the elastic moduli of rock mass and the abutment stress. It was found that the elastic modulus of the rock mass is 0.445 times the data from laboratory test of its sample and...

    Observations have been made for a long time and in a wide range on deformation and failure of floor strata of deep tunnels. Floor strata movement, front abutment stress and floor rock osmosis were observed. Based on data of displacement observed and statistical data of in-situ rock stress, back analysis of displacements is made to obtain the elastic moduli of rock mass and the abutment stress. It was found that the elastic modulus of the rock mass is 0.445 times the data from laboratory test of its sample and the front abutment stress is 1.7 times the stress in-situ rock mass in the vertical direction. Stress distribution of the floor rock mass and the range of disturbance in floor rock affected by mining are discussed.

    为研究采煤造成的采场底板岩层变形与破坏状况,在采深近千米的深井采场进行了大范围、长时期的底板岩层移动、超前支承压力和底板岩层渗透性等多项观测。根据位移实测资料和原始地应力实测统计资料,采用位移反分析方法,反求出了岩体的弹性模量和支承压力,得出岩体的弹模是其对应岩石试件室内测试弹模的0.445倍,超前支承压力是垂向原始地应力的1.7倍。本文还探讨了底板岩层的应力分布和开采造成的底板岩层扰动范围。

    his paper is the summary of deeply researching the voussoir beam theory recentyears,proposing that the face surrounding rockmay be considered as an organic whole,and at surrounding rock moving the structure acting asframe may be regarded as the voussoir beam. Under the premise of solid structure,themechanism of undgound pressure,such as the face floor damage and flash flood,the strata movement and separation layerm the acted force of the structure of voussoir and the stable of the key block, and the stability...

    his paper is the summary of deeply researching the voussoir beam theory recentyears,proposing that the face surrounding rockmay be considered as an organic whole,and at surrounding rock moving the structure acting asframe may be regarded as the voussoir beam. Under the premise of solid structure,themechanism of undgound pressure,such as the face floor damage and flash flood,the strata movement and separation layerm the acted force of the structure of voussoir and the stable of the key block, and the stability of S R of voussoir beam structure, were analyzed.

    本文是近两年来深入开展砌体梁理论研究的总结,并提出了把采场围岩作为一个有机的整体,在围岩运动中起骨架作用的结构可视为砌体梁。在围岩整体结构思想前提下分析了采场底板破坏与突水,岩层移动与离层,砌体梁结构的受力与关键块体的稳定,砌体梁结构的S—R稳定性等矿压机理。

    A new calculating method for the mechanical behaviours of floors with underground water inrush inlongwall mining is proposed in this paper. The main floor under the influence of longwall mining can be considered asan elastic-plastic plate with various support conditions and the stability of the fractured plate can be analysed aVoussior Beam. Using the plastic limit theory of plates, the limit load of main floor and its largest deformation pointcan be obtained. By S-R stability theory,the stability conditions...

    A new calculating method for the mechanical behaviours of floors with underground water inrush inlongwall mining is proposed in this paper. The main floor under the influence of longwall mining can be considered asan elastic-plastic plate with various support conditions and the stability of the fractured plate can be analysed aVoussior Beam. Using the plastic limit theory of plates, the limit load of main floor and its largest deformation pointcan be obtained. By S-R stability theory,the stability conditions for the key blocks of the Voussior Beam of thefractured main floor also can be determined. These theoretical results are also important for the study on the water一inrush from floor in longwall mining.

    本文针对采场底板的层状结构特征,建立了分析采场底板突水问题的结构模型。即,将破断前的老底视作板结构,破断后的块状体视作“砌体梁”结构。用板的极限分析理论求出了各种边界条件下底板的破坏极限荷载和形态及最大变形点位置。用S-R稳定理论分析了破断后底板块状岩体结构的稳定条件及范围。通过这种对采场底板结构系统性的力学分析,提出了治理底板突水的新的理论依据

     
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