李继业,蒲朝钦,何兴贵

• 1:中交一公局第四工程有限公司
• 2:贵州新联爆破工程集团有限公司

摘要(Abstract)：

遵义市南部新区新龙快线项目中,岩体节理裂隙较为发育,岩层产状为缓倾斜,倾角约20°,边坡的走向和结构面走向夹角较小。爆破施工时,在上覆岩体重力荷载和爆破振动荷载的共同作用下,边坡稳定性难以得到保证。为研究节理岩体边坡爆破振动速度传播规律,进而采取合理的控制措施,通过对边坡爆破振动进行监测,分析边坡爆破振动衰减特征,得到不同装药量和爆心距时爆破振动在边坡上的传播规律。研究结果表明:装药量越大,距离越小,振速衰减速度越大;振速高程放大效应效果与装药量密切相关。对监测结果进行回归分析与预测,结合研究结果最后提出合理措施。

关键词(KeyWords)： 节理裂隙;爆破振动;衰减特征

Abstract:

Keywords:

基金项目(Foundation): 黔科合人才(2016)4030号—贵州省高层次创新型人才培养(百层次);; 黔科合高G字(2015)4004—贵州省爆破工程技术研究中心能力提升平台建设;; 黔科合成果[2017]4774—2017年创新型领军企业再支持

作者(Author): 李继业,蒲朝钦,何兴贵

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