簡單施(shi)(shi)(shi)工(gong)(gong)法又稱預應力(li)錨(mao)(mao)具(ju)施(shi)(shi)(shi)工(gong)(gong)安(an)裝(zhuang)法,屬于(yu)小錨(mao)(mao)具(ju)施(shi)(shi)(shi)工(gong)(gong)安(an)裝(zhuang),是在被錨(mao)(mao)具(ju)施(shi)(shi)(shi)工(gong)(gong)安(an)裝(zhuang)的巖(yan)石內(nei)鉆(zhan)鑿直徑28—75 mm、深度1~Sm筒(tong)形的簡單施(shi)(shi)(shi)工(gong)(gong)、簡單施(shi)(shi)(shi)工(gong)(gong)可(ke)用(yong)風鉆(zhan)或人工(gong)(gong)打設,然后在簡單施(shi)(shi)(shi)工(gong)(gong)內(nei)裝(zhuang)藥進(jin)行爆炸(zha),簡單施(shi)(shi)(shi)工(gong)(gong)法可(ke)用(yong)于(yu)開挖基(ji)坑、開采石料、松動凍土等,但其錨(mao)(mao)具(ju)施(shi)(shi)(shi)工(gong)(gong)安(an)裝(zhuang)量小、效率(lv)低、鉆(zhan)孔工(gong)(gong)作(zuo)量大(da)。
簡(jian)單施工(gong)的布置(zhi)應(ying)盡量(liang)利(li)用臨空(kong)面較多的地(di)形;簡(jian)單施工(gong)方(fang)向(xiang)(xiang)應(ying)盡量(liang)與臨空(kong)面平(ping)行(xing)。避免(mian)與臨空(kong)面垂直,以免(mian)炸(zha)(zha)藥爆(bao)炸(zha)(zha)時,破壞(huai)力向(xiang)(xiang)最小抵抗線方(fang)向(xiang)(xiang)發展。藥包量(liang)可按(an)松動藥包量(liang)計算(suan)。為防(fang)止出現沖(chong)天炮,裝藥量(liang)大致為炮孔深度。
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