floor heave

the mechanical model for the floor heave of shear dilation type and its analytic calculation diagram are established in accordance with the constitutive relationship of laneway wall rock.

根据巷道围岩本构关系，建立了剪胀底臌力学模型及分析计算简图，根据岩土体主动和被动压力作用原理，导出了巷道底板塑性区发展范围、深度及底板压力解析计算式。

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causation and classification of tunnel floor heave and its control

隧道底板隆起的成因、分类与控制

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With grouting-bolting as the kernel, pre-stressed anchor rope and anchor as the auxiliary structure, the three-bolting combined supporting system combining pressure-relief technology of roof control and laneway floor heave control technology solved the supporting stability problem in deep-seated soft rock roadway.

通过以锚注为核心，预应力锚索和锚杆为辅助支护结构的三锚联合支护技术，结合控顶放压技术和底臌控制技术解决了深部软岩巷道的稳定性控制问题。

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Roof falling, floor heave of roadway and pillar failure are important rock mechanical problems in mining.

顶板冒落 、 巷道底鼓和矿柱破坏是采矿过程中的重要岩石力学问题.

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study on numerical simulations for mechanism of the floor heave in inclined stratum roadway

倾斜岩层巷道底鼓机理的数值模拟

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simulation results indicate that the destruction form of rib spalling, floor heave and roof falling occur when the drifts are excavated.

结果表明：随着进路开挖，进路会出现片帮、底鼓和顶板下沉等现象；

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analysis of the relationship between abutment pressure distribution and floor heave of gateway

支承压力与回采巷道底鼓关系分析

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Study of the Slotted Bolt Floor Heave in Soft Rock Roadway

管缝式锚杆防治软岩巷道底臌的试验研究

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This is one of the main factors causing deformation and consequently floor heave and sides closure.

这是一个主要因素造成变形,因此底鼓和双方结束.

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in-situ measurement shows that good result of controlling the floor heave is obtained with the scheme.

现场观测表明，该方案取得了良好的底鼓控制效果。

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numeric analysis using computer and simulation test with equivalent materials show that reinforcement of different positions of the gateway will help to control the floor heave.

计算机数值模拟及相似材料模拟试验研究表明，加固不同部位对控制底臌均有一定效果。

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It considered that the floor heave gob was the principal character of surrounding rock distortion.

得出底鼓是该类型巷道围岩变形的主要特征.

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the mechanism and control of floor heave of road driving along next goaf of high seam

厚煤层沿空掘巷底臌机理及控制

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