本文選題：城鎮(zhèn)控制爆破技術(shù) + 爆破施工��； 參考：《爆破》2017年02期

【摘要】：城鎮(zhèn)道路工程中的爆破振動一直是施工各方關(guān)心的問題,爆破振動控制技術(shù)的研究對爆破安全具有重要的意義。結(jié)合貴陽市斗篷山道路開挖具體工程實例,根據(jù)損傷理論和聲波測試技術(shù)取得保護對象的爆破損傷累積系數(shù),用以修正安全允許振速作為爆破振動控制標(biāo)準(zhǔn);進(jìn)一步分析爆區(qū)周邊振動控制要點,對附近民房采用三級保護,軍用信號塔采用二級保護。控制爆破后保護對象附近的振動監(jiān)測結(jié)果顯示:采用電子雷管網(wǎng)路爆破的最大振速明顯小于導(dǎo)爆管網(wǎng)路爆破,并且爆后巖渣塊度均小于50 cm;運用模糊評判方法分析導(dǎo)爆管網(wǎng)路爆破效果和安全控制標(biāo)準(zhǔn)的貼近度為0.350,而電子雷管網(wǎng)路爆破貼近度0.425更接近于安全控制標(biāo)準(zhǔn);采用合理的爆破振動控制措施結(jié)合電子雷管爆破技術(shù)使斗篷山開挖爆破振動得到了有效的控制。
[Abstract]:Blasting vibration in urban road engineering is always concerned by all construction parties. The study of blasting vibration control technology is of great significance to blasting safety. According to the damage theory and acoustic wave testing technology, the cumulative blasting damage coefficient of the protected object is obtained according to the concrete engineering example of the road excavation in Doufeng Mountain, Guiyang City, which is used to modify the safe allowable vibration velocity as the blasting vibration control standard. The main points of vibration control around the explosion zone are further analyzed. The third level protection is adopted for the nearby houses and the second protection is used for the military signal tower. The results of vibration monitoring near the protected object after controlled blasting show that the maximum vibration velocity of blasting using electronic detonator network is obviously smaller than that of detonator network blasting. In addition, the degree of fragmentation of rock and slag after explosion is less than 50 cm, the closeness of blasting effect and safety control standard is 0.350 by using fuzzy evaluation method, and the blasting closeness degree of electronic detonator network is more close to the safety control standard than that of electronic detonator network. Using reasonable blasting vibration control measures and electronic detonator blasting technology, the blasting vibration of cloak hill excavation can be effectively controlled.
【作者單位】： 武漢理工大學(xué)資源與環(huán)境工程學(xué)院;貴州新聯(lián)爆破工程集團有限公司;
【基金】：國家自然科學(xué)基金項目(No.51609184) 金屬礦山安全與健康國家重點實驗室開放基金(2016-JSKSSYS-01)
【分類號】：U416.113
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本文編號：2002300