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A platform for research: civil engineering, architecture and urbanism
Slope anchor cable reinforcement scheme determination method under coal pillar retaining effect
The invention relates to the technical field of open pit coal mining, and discloses a method for determining a slope anchor cable reinforcement scheme under the action of coal pillar retaining, which comprises the following steps of: acquiring morphological parameters and lithologic parameters of a slope under the action of coal pillar retaining, establishing a numerical simulation model, importing the numerical simulation model into Flac3D software, carrying out numerical simulation calculation, and comparing the numerical simulation calculation with a safety reserve coefficient, so as to determine the slope anchor cable reinforcement scheme under the action of coal pillar retaining. Determining anchor cable reinforcement measures and an anchor cable reinforcement range; simulation parameters and reinforcement parameters of anchor cable reinforcement measures are selected, anchor cables are arranged on a flat plate of a coal pillar top plate, stability calculation results Fs2 and K1 are compared within the effective anchoring range, and the anchor cable reinforcement measures are adjusted; and according to a numerical simulation calculation result after the anchor cables are arranged on the next step of the flat plate at the top of the coal pillar, repeatedly adjusting until an optimal anchor cable reinforcing scheme is obtained. According to the displacement change and stability coefficient result of the side slope three-dimensional model, a side slope anchor cable reinforcing scheme meeting the conditions is guided to be designed, and the stability of the side slope under the coal pillar retaining effect of the open pit coal mine is improved.
本发明涉及露天煤矿开采技术领域，公开一种煤柱支挡作用下的边坡锚索加固方案确定方法，获取煤柱支挡作用下边坡的形态参数和岩性参数，建立数值模拟模型，导入到Flac3D软件中，并进行数值模拟计算，并与安全储备系数比较，确定锚索加固措施以及锚索加固的范围；选取锚索加固措施的模拟参数及加固参数，在煤柱顶板平盘上布设锚索，在有效锚固范围内，比较稳定性计算结果Fs2与K1，调整锚索加固措施；根据在煤柱顶部平盘的下一台阶布设锚索后的数值模拟计算结果，重复调整，直至得到最优锚索加固方案。本发明根据边坡三维模型的位移变化及稳定性系数结果，指导设计满足条件的边坡锚索加固方案，提高露天煤矿煤柱支挡作用下边坡的稳定性。
Slope anchor cable reinforcement scheme determination method under coal pillar retaining effect
The invention relates to the technical field of open pit coal mining, and discloses a method for determining a slope anchor cable reinforcement scheme under the action of coal pillar retaining, which comprises the following steps of: acquiring morphological parameters and lithologic parameters of a slope under the action of coal pillar retaining, establishing a numerical simulation model, importing the numerical simulation model into Flac3D software, carrying out numerical simulation calculation, and comparing the numerical simulation calculation with a safety reserve coefficient, so as to determine the slope anchor cable reinforcement scheme under the action of coal pillar retaining. Determining anchor cable reinforcement measures and an anchor cable reinforcement range; simulation parameters and reinforcement parameters of anchor cable reinforcement measures are selected, anchor cables are arranged on a flat plate of a coal pillar top plate, stability calculation results Fs2 and K1 are compared within the effective anchoring range, and the anchor cable reinforcement measures are adjusted; and according to a numerical simulation calculation result after the anchor cables are arranged on the next step of the flat plate at the top of the coal pillar, repeatedly adjusting until an optimal anchor cable reinforcing scheme is obtained. According to the displacement change and stability coefficient result of the side slope three-dimensional model, a side slope anchor cable reinforcing scheme meeting the conditions is guided to be designed, and the stability of the side slope under the coal pillar retaining effect of the open pit coal mine is improved.
本发明涉及露天煤矿开采技术领域，公开一种煤柱支挡作用下的边坡锚索加固方案确定方法，获取煤柱支挡作用下边坡的形态参数和岩性参数，建立数值模拟模型，导入到Flac3D软件中，并进行数值模拟计算，并与安全储备系数比较，确定锚索加固措施以及锚索加固的范围；选取锚索加固措施的模拟参数及加固参数，在煤柱顶板平盘上布设锚索，在有效锚固范围内，比较稳定性计算结果Fs2与K1，调整锚索加固措施；根据在煤柱顶部平盘的下一台阶布设锚索后的数值模拟计算结果，重复调整，直至得到最优锚索加固方案。本发明根据边坡三维模型的位移变化及稳定性系数结果，指导设计满足条件的边坡锚索加固方案，提高露天煤矿煤柱支挡作用下边坡的稳定性。
Slope anchor cable reinforcement scheme determination method under coal pillar retaining effect
一种煤柱支挡作用下的边坡锚索加固方案确定方法
WANG SHOUGONG (author) / WANG PUYI (author) / LI GUANGHE (author) / WANG YANTING (author) / WANG DONG (author) / JIANG ZHONGYU (author) / LI YINGJUN (author) / TAO ZHIGANG (author) / KONG LINGWEI (author) / LIU YAN (author)
2024-11-01
Patent
Electronic Resource
Chinese
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