Author(s)

Gao Jiyao ¹, Wei Sijiang ^2,3

Affiliation(s)

¹ School of Business Administration, Henan Polytechnic University, Jiaozuo, Henan, 454000, China
² School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China
³ Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Jiaozuo, Henan, 454000, China

Corresponding Author

Gao Jiyao

ABSTRACT

In order to improve the tunneling efficiency of hard rock roadway, its construction process is better controlled. The deep hole presplitting blasting excavation process of 1605 roadway in Guhanshan Mine is taken as the object. The Oracle Crystal Ball software is used to simulate the process of roadway excavation by Monte Carlo simulation. The possible construction period time and distribution law of single cycle of roadway excavation are predicted. The sensitivity of each process is analyzed, and the bottleneck process that has a great influence on the process is found. Then, the process that needs to be controlled is further analyzed and studied. The drilling depth of the drilling process is changed, and the tunneling speed and the change of sensitivity of each process under different drilling depths are analyzed. The results show that the Monte Carlo simulation method can calculate the duration of roadway excavation, find the bottleneck process of roadway excavation process, and find the optimal parameters of its process. 

KEYWORDS

deep hole presplitting; tunnel excavation; Monte Carlo simulation; bore hole; network planning

CITE THIS PAPER

Gao Jiyao, Wei Sijiang, Study on Excavation Period Estimation of Deep Hole Presplitting Blasting Based on Monte Carlo. Journal of Civil Engineering and Urban Planning (2022) Vol. 4: 80-89. DOI: http://dx.doi.org/10.23977/jceup.2022.040310.

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