Application of double-pipe protecting borehole wall blasting in development laneway of Qingping Phosphate Mine;
光面护壁爆破在清平磷矿开拓巷道中的应用
To study single hole-unilateral protecting borehole wall blasting,cement mortar model tests were carried out.
对单孔单侧护壁爆破进行了砂浆模型试验,并对护壁面和临空面进行了动态应变测试,测试结果显示护壁面的应变峰值较临空面降低了44%;运用LS-DYNA3D有限元软件对该试验进行三维数值模拟,分析了炮孔周围介质的有效应力场、压力场、速度场及质点位移的发展和分布。
This paper introduced the principle and method of protecting borehole wall blasting and its application in the Dongxia and Weifang coal mine.
本文介绍了护壁爆破原理和方法以及其在东峡煤矿、潍坊煤矿的应用情况。
The demolition plan,the blasting parameters of the main explosive hole and pre-splitting hole,blasting network,blasting equipment and a series of safeguarding measures are detailed.
详细介绍了爆破方案、主爆孔及预裂孔的爆破参数、爆破网路和爆破器材以及解决此次爆破所面临的安全问题的一系列措施。
The blasting scheme,blasting parametes,hole assignment,blasting network,and blasting safety are introduced in demolishing a brick-concrete structure building.
介绍了某点式砖混结构楼房的拆除爆破方案、爆破参数、爆破网路以及爆破安全防护措施。
By way of increasing the initiating network s reliability,the blasting network was adopted.
根据郑石高速公路No19段路堑爆破开挖的工程实际,通过对比确定在路堑开挖中采用一次成形中深孔排间顺序延期爆破方案,并进行爆破振动和飞石方面的安全校核,最后讨论修改了爆破网路,提高了该网路的可靠度。
There are many different materials which can be used as blasting mats.
许多不同的材料均可用做爆破防护垫之用。
Mechanics Studies on the Impact of Blasting upon Cast-in-place Concrete Wall in Excavating Pile Pier & the Measure of Protecting the Wall
掘桩爆破炸坏随砌护壁力学分析及防止措施
The Casting Discipline Study and Controlling Protection of Blasting Individual Flying Rock
爆破个别飞散物的抛飞规律研究及控制防护
Experimental Research on Safety Protection of Chamber Blasting Charging in High-temperature Chamber
硐室爆破时高温硐室装药的安全防护试验研究
Analysis of Misfire Using Detonating Fuse and Connecting Detonating Cap during Millisecond Blasting & Its Prevention Methods
微差爆破中导爆索与继爆管拒爆分析及其预防
The design methods and measures of safety protection of weakly loose blasting are introduced with field cases.
通过工程实例，介绍了微弱松动爆破的设计方法及安全防护措施。
Destroy Research the Defendence Structure Near Shipboard of Warship Subjected to Underwater Contact Explosion;
舰船舷侧防护结构在水下爆炸载荷作用下的破坏研究
Within the scope of protection of flood control works, exploding, drilling wells, quarrying stones, collecting earth or other operations endangering the safety of flood control works are prohibited.
在防洪工程设施保护范围内，禁止进行爆破、井、石、土等危害防洪工程设施安全的活动。
Protecting mechanism of anti-explosion structure under exploding load
爆炸荷载作用下抗爆结构的防护机理
Reasons and Overcoming Measures of Anti-explosion of Emulsification Detonator in Blasting at Freezing Gravel Stratum Shaft;
冻结立井爆破乳化炸药拒爆原因及防止措施
This paper introduces the controlled blasting techinque for stonework and preventive technique for existing lines in construction of depressed road's extension of double line railway.
本文介绍了铁路复线扩堑施工中的石方控制爆破技术及对既有线的安全防护技术。
Application of FTA in Anti-injuring Accident of People by Blasting Flying Rocks
FTA在防止爆破飞石伤人事故中的应用
Shock blasting: its outburst preventive mechanism and safety precautions
震动爆破的防突机理及安全注意事项
Weatherproof or explosion proof electric actuator.
电动执行机构的气候保护或防爆保护。
These tactics were: (1) successive demolition -- using explosives to demolish the enemy's different defence installations in succession;
这些战术是：（1）连续爆破——以炸药对敌人各种防御设施进行连续爆破；
Application of Smooth Blasting with Borehole Wall Protection in Tunneling in Fractured Rock
光面护壁爆破在破碎岩体巷道掘进中的应用
Study on the Pliability Cushion Explosion Method and Effectively of the Protected Level of Dam Foundation Rock s Excavating;
大坝基岩保护层开挖中柔性垫层爆破方法及爆破效果研究
Review of Investigation on Explosive Damage Effect and Gap Defense in Tunnel
坑道内爆毁伤效应与隔爆防护研究综述