發(fā)布時(shí)間：2018-10-14 09:21

【摘要】：爆破荷載是導(dǎo)致邊坡失穩(wěn)的重要外部因素。與土質(zhì)邊坡相比,由于節(jié)理面的存在,爆破荷載下巖質(zhì)邊坡穩(wěn)定性研究更加復(fù)雜。綜述節(jié)理對(duì)爆破應(yīng)力波傳播特性的影響規(guī)律以及爆破荷載作用下巖質(zhì)邊坡數(shù)值計(jì)算要點(diǎn),并從巖質(zhì)邊坡自身特點(diǎn)、爆破應(yīng)力波振動(dòng)特性以及爆破荷載與其他外界因素耦合3方面詳述巖質(zhì)邊坡動(dòng)力穩(wěn)定性研究現(xiàn)狀,總結(jié)得出節(jié)理力學(xué)性質(zhì)及分布,爆破應(yīng)力波振動(dòng)速度、頻率及其衰減規(guī)律等因素是巖質(zhì)邊坡極其重要的穩(wěn)定因素。最后,對(duì)爆破荷載作用下巖質(zhì)邊坡穩(wěn)定性研究進(jìn)行展望,為進(jìn)一步深入研究奠定基礎(chǔ)。
[Abstract]:Blasting load is an important external factor leading to slope instability. Compared with soil slope, the stability of rock slope under blasting load is more complicated because of the existence of joint surface. The influence of joints on the propagation characteristics of blasting stress wave and the main points of numerical calculation of rock slope under blasting load are summarized, and the characteristics of rock slope itself are discussed. The vibration characteristics of blasting stress wave and coupling of blasting load with other external factors are described in detail in this paper. The mechanical properties and distribution of joint and vibration velocity of blasting stress wave are summarized. Frequency and attenuation law are the most important stability factors of rock slope. Finally, the stability of rock slope under blasting load is prospected, which lays a foundation for further study.
【作者單位】： 北京城市學(xué)院城市建設(shè)學(xué)部;中國(guó)航天系統(tǒng)科學(xué)與工程研究院;北京科技大學(xué)土木與資源工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(編號(hào):51174014) 科技北京百名領(lǐng)軍人才培養(yǎng)工程項(xiàng)目(編號(hào):Z151100000315014) 國(guó)家青年科學(xué)基金項(xiàng)目(編號(hào):51504016)
【分類號(hào)】：TD235

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本文編號(hào)：2270043