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精確延時(shí)破巖機(jī)理綜述

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摘  要:爆破巖體精確延時(shí)破巖機(jī)理的研究進(jìn)展緩慢,全面地清晰解釋巖體爆破機(jī)理全過程是爆破領(lǐng)域一項(xiàng)難題。文章綜合闡述已有的爆破巖體破碎機(jī)理,結(jié)合多角度、多方面研究成果,試著闡述較為成熟的巖石破碎機(jī)理、精確延時(shí)時(shí)間的基本確定方法、數(shù)值模擬和其他方法在爆破工程中的應(yīng)用。

關(guān)鍵詞:爆破;精確延時(shí);數(shù)值模擬

中圖分類號(hào):TU45      文獻(xiàn)標(biāo)志碼:A          文章編號(hào):2095-2945(2022)10-0097-05

Abstract: The research of precise delay rock breaking mechanism of blasting rock mass progresses slowly and it is a difficult problem in blasting field to fully and clearly explain the whole process of blasting mechanism of rock mass. This paper comprehensively expounds the existing blasting rock fragmentation mechanism, combined with multi-angle and multi-aspect research results to try to explain the more mature rock fragmentation mechanism, the basic determination method of accurate delay time, numerical simulation and other methods in blasting engineering application.

Keyword: Blasting; Precise time delay; The numerical simulation

爆破被廣泛應(yīng)用于現(xiàn)代工程實(shí)踐中,特別是近現(xiàn)代人類工程活動(dòng)促使爆破理論不斷發(fā)展完善,僅對(duì)常見爆破技術(shù)進(jìn)行統(tǒng)計(jì)分類大概為14種[1],如下:(1)巖土爆破;(2)露天爆破;(3)地下爆破;(4)淺孔爆破;(5)深孔爆破;(6)復(fù)雜環(huán)境爆破;(7)掘進(jìn)爆破;(8)硐室爆破;(9)水下爆破;(10)預(yù)裂爆破;(11)光面爆破;(12)延時(shí)爆破;(13)拆除爆破;(14)特種爆破。(剩余8844字)

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