It is an inevitable trend to shift from pay-as-you-go to funded or multi-pillar system.
从现收现付制向部分积累制或多支柱模式转轨是大势所趋。
Based on field observations and theoretical analyses, the characteristic of periodic caving of immediate roof and main roof in a room and pillar system was analyzed.
通过理论分析和现场实测,对房柱式采煤的矿压显现规律及其特点进行了探讨。
ThiS Paper dedals with a new type of offshore Platform consisting of a beam pillar system. The centrifugal model tests were performed to clarify the operational mechanism.
本文对新型的梁柱式石油平台进行了研究,通过离心模型试验阐述了此类平台的工作机理。
From the point view of system theory, a new concept for improving the stability of the whole pillar system is put forward, and the indices of pillar stability assessment are introduced.
从系统论的角度提出改善煤柱稳定性的新思路,即从提高稳定性最差的煤柱来改善整个煤柱系统的稳定性,并从材料和结构两个方面给出评价煤柱稳定性的指标。
The roof of cavern is regarded as an elastic beam with support at the midpoint and the coal pillars are regarded as bearings so as to establishing a cavern roof-coal pillar system.
将顶板视为中点有支承的弹性固结梁,将煤柱视为支座,形成了顶板-煤柱系统。
The roof of cavern is regarded as an elastic beam with support at the midpoint and the coal pillars are regarded as bearings so as to establishing a cavern roof-coal pillar system.
将顶板视为中点有支承的弹性固结梁,将煤柱视为支座,形成了顶板-煤柱系统。
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