安徽理工大学学报（自然科学版）
安徽理工大學學報（自然科學版）
안휘리공대학학보（자연과학판）
JOURNAL OF ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY(NATURAL SCIENCE)
2014年
4期
61-64
,共4页
非固结面%深度%裂隙%爆破振动%减振效果
非固結麵%深度%裂隙%爆破振動%減振效果
비고결면%심도%렬극%폭파진동%감진효과
unconsolidated interface%depth%fractures%blast vibration%vibration damping effect
鉴于岩体中存在大量裂隙，为了探索非固结面裂隙对爆破振动效应的影响，通过建立波在裂隙岩体中传播的砂浆模型，对节理裂隙岩体进行模拟试验，研究分析了岩体裂隙深度对应力波传播规律的影响。研究表明：由于非固结面裂隙因素影响，裂隙深度对垂直方向质点峰值的影响较大，质点垂向振动峰值变小，裂隙深度和质点峰值大小不是反线性比例关系；裂隙深度对三个单独方向（垂向、径向和切向）主频率大小的影响并不明显，但其垂向频域分布主要集中在中高频，径向和切向主要集中在低频频域范围内。
鑒于巖體中存在大量裂隙，為瞭探索非固結麵裂隙對爆破振動效應的影響，通過建立波在裂隙巖體中傳播的砂漿模型，對節理裂隙巖體進行模擬試驗，研究分析瞭巖體裂隙深度對應力波傳播規律的影響。研究錶明：由于非固結麵裂隙因素影響，裂隙深度對垂直方嚮質點峰值的影響較大，質點垂嚮振動峰值變小，裂隙深度和質點峰值大小不是反線性比例關繫；裂隙深度對三箇單獨方嚮（垂嚮、徑嚮和切嚮）主頻率大小的影響併不明顯，但其垂嚮頻域分佈主要集中在中高頻，徑嚮和切嚮主要集中在低頻頻域範圍內。
감우암체중존재대량렬극，위료탐색비고결면렬극대폭파진동효응적영향，통과건립파재렬극암체중전파적사장모형，대절리렬극암체진행모의시험，연구분석료암체렬극심도대응력파전파규률적영향。연구표명：유우비고결면렬극인소영향，렬극심도대수직방향질점봉치적영향교대，질점수향진동봉치변소，렬극심도화질점봉치대소불시반선성비례관계；렬극심도대삼개단독방향（수향、경향화절향）주빈솔대소적영향병불명현，단기수향빈역분포주요집중재중고빈，경향화절향주요집중재저빈빈역범위내。
In view of the existence of a large number of cracks in rock mass , in order to explore influence on un-consolidated surface cracks on blasting vibration effect , the mortar model of wave propagation in the fractured rock mass was established , to do simulation test to joint fractured rock mass , and the influence of rock crack depth on stress wave propagation was studied .The results indicated that because of influence of unconsolidated surface fissures , the influence of crack depth on the vertical peak particle is big , and vertical vibration peak gets smaller, the relationship between crack depth and particle peak value is not antilinear proportional .The effect of crack depth on the three separate direction ( vertical, radial and tangential ) main frequency is not obvious , but its vertical frequency distribution is mainly in the high -frequency , radial and tangential frequency are mainly concentrated in the low -frequent range .
