1) chamber & deep-hole pre-splitting
硐室加深孔预裂爆破
1.
The vibration testing analysis of blasting in Tai Chang Exprassway shows that chamber & deep-hole pre-splitting blasting can strikingly drop the seismic effect of chamber blasting,so it effectively solves some problems of slop stability,slop quality and safety of building structures caused by blasting vibration.
太长高速公路的爆破振动测试分析表明硐室加深孔预裂爆破能够显著地降低硐室爆破所带来的地震效应,有效地解决爆破振动所造成的边坡稳定性、边坡质量和爆区附近建(构)筑物的安全问题。
2) deep-hole presplitting explosion
深孔预裂爆破
1.
Numerical simulation of improving permeability by deep-hole presplitting explosion in loose-soft and low permeability coal seam;
高瓦斯低透气性煤层深孔预裂爆破增透数值模拟
2.
In this dissertation, several researching methods, such as theory analysis and numerical simulation and on-field experiment as well as practical engineering application, are used to systematically study the promoting permeability effect of deep-hole presplitting explosion as well as action mechanism of promoting gas drainage and preventing coal-gas outburst.
深孔预裂爆破为高瓦斯低透气性煤层增透,进而解决高瓦斯低透气性煤层瓦斯抽采难题提供了一条新的有效的途径。
3) deep-hole pre-splitting blasting
深孔预裂爆破
1.
The vibration testing analysis of blasting in Tai-Chang freeway show that it is chamber & deep-hole pre-splitting blasting that can strikingly drop the seismic effect of chamber blasting,so it effectively solves some problems of slope stability,slope quality and safety of building & structure that blasting vibration brings about.
硐室加深孔预裂爆破能够显著地降低硐室爆破所带来的地震效应,有效地解决爆破振动所造成的边坡稳定性、边坡质量和爆区附近建(构)筑物的安全问题,适用范围比较大。
2.
The vibration testing analysis of blasting in Tai Chang Exprassway shows that chamber & deep-hole pre-splitting blasting can strikingly drop the seismic effect of chamber blasting,so it effectively solves some problems of slop stability,slop quality and safety of building structures caused by blasting vibration.
太长高速公路的爆破振动测试分析表明硐室加深孔预裂爆破能够显著地降低硐室爆破所带来的地震效应,有效地解决爆破振动所造成的边坡稳定性、边坡质量和爆区附近建(构)筑物的安全问题。
4) chamber and presplit
硐室加预裂
5) coyote blasting
硐室爆破
1.
Considering the simple equipment and relatively lagged technique,a way of substituting coyote blasting for small diameter drifting blasting is introduced in this paper.
结合小型采石场设备简单、工艺相对落后的实际,介绍了一种采用硐室爆破替换其小直径钻眼爆破的方法,并对药室的布置及起爆网路作了阐述。
2.
The disign method and features of coyote blasting in quarrying rockfill material for the Doulingzi hydro power project are described.
介绍了陡岭子水电工程堆石料采用硐室爆破开采的设计方法和特点。
6) chamber blasting
硐室爆破
1.
Application of decoupling linear plane charge in chamber blasting;
条形不耦合平面布药技术在硐室爆破中的应用
2.
Dynamic photoelastic research and engineering application of chamber blasting at different cavity ratios;
硐室爆破空腔比的动光弹研究与工程应用
3.
Application of chamber blasting technology to goaf filling;
硐室爆破在空区处理中的应用
补充资料：预裂爆破
沿设计开挖轮廓面钻孔,先于其他炮孔起爆,以形成一道贯穿性的裂缝面，使非爆破区免遭破坏的控制爆破技术。预裂爆破技术具有超挖量少，围岩完整和爆破振动轻等优点，广泛用于露天和地下工程开挖。预裂爆破于20世纪50年代初期由瑞典首创，它是由周边爆破（即沿开挖边线采用密集钻孔和少量装药的爆破法）和光面爆破发展的结果。中国葛洲坝水利枢纽和东江水电站曾大规模应用，均获得显著的技术和经济效益。
应用预裂爆破技术，关键在于正确选定预裂孔间距(ɑ)、孔径(d)和线装药密度(Q)(即单位长度钻孔的装药量，g/m),及采用药卷直径(de)小于孔径(d)的不偶合装药方式。常用的孔距ɑ＝(6～10)d,岩石软弱或孔径较大时取小值，岩石坚硬或孔径较小时取大值。线装药密度与孔距、孔径、岩性和炸药品种密切相关。不偶合系数（即d/de）一般为2～4。上述诸参数主要应通过现场爆破试验确定。炮孔药卷可采用线状连续或柱状间隔的形式，但间隔以控制在10～30cm为宜，均采用导爆索连续同时起爆。预裂爆破的质量标准是：爆破形成的表面缝宽一般不小于1cm；预裂面的不平整度不大于15cm;孔壁表面没有明显的爆破裂隙。
应用预裂爆破技术，关键在于正确选定预裂孔间距(ɑ)、孔径(d)和线装药密度(Q)(即单位长度钻孔的装药量，g/m),及采用药卷直径(de)小于孔径(d)的不偶合装药方式。常用的孔距ɑ＝(6～10)d,岩石软弱或孔径较大时取小值，岩石坚硬或孔径较小时取大值。线装药密度与孔距、孔径、岩性和炸药品种密切相关。不偶合系数（即d/de）一般为2～4。上述诸参数主要应通过现场爆破试验确定。炮孔药卷可采用线状连续或柱状间隔的形式，但间隔以控制在10～30cm为宜，均采用导爆索连续同时起爆。预裂爆破的质量标准是：爆破形成的表面缝宽一般不小于1cm；预裂面的不平整度不大于15cm;孔壁表面没有明显的爆破裂隙。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条