Quick estimation method on parameters of loosened zone around large underground cavern based on measured data from embedded multipoint extensometers

Zou, Jinting; Li, Z. K.

doi:10.1201/b17617-13

Cited by 1 publication

(2 citation statements)

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“…Each increase in the height of the filling material is small. At the final stage, the filling material will not shrink due to large natural subsidence and leaves an empty top (Chen, Ji, Zhang, & Wu, 2014).…”

Section: Improving the Filling Processmentioning

confidence: 99%

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A Study of Technical Measures for Increasing the Roof-Contacted Ratio in Stope and Cavity Filling

Kouame¹,

Feng²,

Jiang³

et al. 2015

JMSR

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<p class="1Body">Due to the increasing depth of mines, fill mining is increasingly widely used in metal mines. As a result, supporting pit roofs has become an important issue to which an increasing number of people are devoting attention. This paper analyses the factors affecting the rate of supporting pit roofs under stope filling conditions, including filling slurry properties and the filling process. Building on this, the paper examines a number of potential measures for improving the rate of supporting pit roofs, including creating good conditions for filling, optimizing filling slurry properties, eliminating the problems caused by water and improving filling technology. Mining companies must select from these measures according to the particular conditions in which their mines operate, but given the right conditions all of the measures examined have the potential to increase the rate at which pit roofs are supported.</p>

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Section: Improving the Filling Processmentioning

confidence: 99%

“…(3) Multi-point cutting filling (Chen, Ji, Zhang, & Wu, 2014): this method is used for filling slurry with poor liquidity, in order to avoid filling blind. In the case of conditions that increase the number of cutting points, where the gravity gradient of filling slurry is small, the top filling rate increases accordingly.…”

Section: Improving the Filling Processmentioning

confidence: 99%