露天边坡体爆破振动特性研究

露天边坡体爆破振动特性研究

李启月,肖宇航,魏快快,徐恒阳

Characterization of Blasting Vibration in Open Slopes

Qiyue LI,Yuhang XIAO,Kuaikuai WEI,Hengyang XU

表4 3个方向和合速度的二元爆破振速衰减模型

Table 4 Binary blasting velocity attenuation models of three directions and combined velocity

自由面数	方向	场地系数K	衰减系数α	影响系数β	爆破振速衰减公式	R_a²
单自由面	径向	212.938	1.538	0.028	$V_{径向} = 212.938 (Q^{1 / 3} {/ R)}^{1.538} {(H / R)}^{0.028}$	0.920
	垂向	382.221	1.586	-0.036	$V_{垂向} = 382.221 (Q^{1 / 3} {/ R)}^{1.586} {(H / R)}^{- 0.036}$	0.897
	切向	366.134	1.792	-0.144	$V_{切向} = 366.134 (Q^{1 / 3} {/ R)}^{1.792} {(H / R)}^{- 0.144}$	0.899
	矢量和	218.765	1.363	0.031	$V_{矢量} = 218.765 (Q^{1 / 3} {/ R)}^{1.363} {(H / R)}^{0.031}$	0.947
双自由面	径向	139.352	1.642	0.001	$V_{径向} = 139.352 (Q^{1 / 3} {/ R)}^{1.642} {(H / R)}^{0.001}$	0.814
	垂向	40.854	1.300	-0.069	$V_{垂向} = 40.854 (Q^{1 / 3} {/ R)}^{1.300} {(H / R)}^{- 0.069}$	0.827
	切向	40.977	1.301	-0.072	$V_{切向} = 40.977 (Q^{1 / 3} {/ R)}^{1.301} {(H / R)}^{- 0.072}$	0.864
	矢量和	28.789	1.220	-0.216	$V_{矢量} = 28.789 (Q^{1 / 3} {/ R)}^{1.220} {(H / R)}^{- 0.216}$	0.830
三自由面	径向	13.197	1.127	-0.197	$V_{径向} = 13.197 (Q^{1 / 3} {/ R)}^{1.127} {(H / R)}^{- 0.197}$	0.622
	垂向	1.975	0.460	-0.085	$V_{垂向} = 1.975 (Q^{1 / 3} {/ R)}^{0.460} {(H / R)}^{- 0.085}$	0.666
	切向	2.145	0.667	-0.195	$V_{切向} = 2.145 (Q^{1 / 3} {/ R)}^{0.667} {(H / R)}^{- 0.195}$	0.660
	矢量和	19.708	1.145	-0.272	$V_{矢量} = 19.708 (Q^{1 / 3} {/ R)}^{1.145} {(H / R)}^{- 0.272}$	0.687