| Summary: | 碩士 === 國立成功大學 === 資源工程學系 === 84 === A model of tunnel blasting design has been developed by
analyzing the collected data of the Gneiss formation in the new
Ho-pin tunnel at Hwan-Lien ,eastern Taiwan. In this study,
tunnel face drilling are grouped into cut, stoping, back, side,
and lifter holes. The model took stoping hole numbers and
explosion charge quantity as independent variables. Parameters
of RMR, face area and advance rate are related through linear
regression based on successful rounds. The model is back-
filling in nature. It is believed that this technique will
provide a better first round design for the in-situ blasting.
Results of this research can be summarized as following: (1)The
regression analysis shows the adjusted R-square is above 0.9
which infersthat the influence of rock properties on blasting
design in Gneiss tunnel can be primary assorted by CSIR-RMR.(2)
The simulation error is neglectable.It means the blasting model
can provide a proper design for test round.(3)The data used in
this study are successful records of previous blasting rounds
which infer the charge might be overdesigned, which can be
adjusted by field observation.(4)The model is a back-filling
process. The program provides a mean to accumulateexperiences
which can promote to other sites.
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