水压峒室爆破在城镇土石方开挖爆破中的应用

以福建晋江深沪镇红山水压峒室爆破为例，介绍了以水压爆破原理为基础，与峒空爆破技术相结合的水压峒室爆破技术及其在城镇土石方开挖爆破中的应用．     

水压硐室爆破在城镇土石方开挖爆破中的应用

以福建晋江深沪镇红山水压峒室爆破为例，介绍了以水压爆破原理为基础，与峒室爆破技术相结合的水压峒室爆破技术及其在城镇土石方开挖爆破中的应用。     

水压爆破装药量的新探索

通过对不同材质的容器，用不同数量炸药进行水压爆破实验，观测容器材质对装药量的影响，探索水压爆破所需药量与材料的物理力学性质－－密度ｐ和抗拉强度Ｒ拉之间的关系，从而确定在一定水压爆破条件下新药量公式中的爆破强度系数Ｋ２。     

水压爆破拆除钢筋混凝土室内水塔

结合工程实例，介绍了用水压爆破方法拆除钢筋混凝土室内水塔的方案及设计参数的确定方法．通过该爆破。发现利用水压爆破方法拆除薄壁结构具有省时、省工、省料、地震效应小等特点．同时，对于其他类似的工程拆除具有借鉴意义．     

水压爆破拆除密闭容器的相似模拟

本文介绍了水压爆破拆除密闭容器的一般方法,分析了影响爆破效果的主要因素,以相似定律为基础,导出了爆破相似准则,给出了水压爆破拆除密闭容器的相似模拟实验方案。     

焦作电厂老厂煤仓漏斗水压爆破拆除

介绍了用水压爆破拆除钢筋混凝土结构物的设计与施工方法.作者对水压爆破的药量计算方法进行了详细的阐述,对药包布置及爆破网路的设计进行了精心的设计和施工,最后达到了良好的预期效果.     

焦作电厂老厂煤仓漏斗水压爆破拆除

介绍了用水压爆破拆除钢筋混凝土结构物的设计与施工方法.作者对水压爆破的药量计算方法进行了详细的阐述,对药包布置及爆破网路的设计进行了精心的设计和施工,最后达到了良好的预期效果.     

徐州电厂1号除尘站的拆除爆破

1987年9月24日应用控制爆破法,成功地完成了徐州电厂1号除尘站三层钢筋混凝土框架结构厂房的拆除工作,为徐州市首创了在极为复杂的环境条件下,安全地实施爆破拆除大型厂房的先例。本文不但介绍了工程概况及其周围环境,而且对采用的拆爆方案及主要安全保护措施,集尘灰斗水压爆破和框架爆破的爆破参数,爆破网路的敷设,以及最终取得的爆破效果也进行了详细的论述。     

拆除钢筋混凝土箱形拱桥的控制爆破

青海省尖扎县黄河大桥为钢筋混凝土箱肋单波双曲拱桥,根据桥梁结构特点,采用水压爆破与微差松动爆破相结合的拆除方法,介绍了爆破方案、爆破参数、装药结构和起爆网路等,为以后类似工程提供参考.     

提高机采工作块煤率及松动控制爆破技术

提高机采工作块煤率及松动控制爆破技术由高鹏、周英、张英才研制的机采工作面块煤率、松动控制爆破技术解决了通常松动爆破时效不稳定，参数不易控制，能量利用率低及时常产生爆破损害等问题，达到了有效松动煤体，提高落煤块率的目的．它将微差控制爆破技术和缓冲爆破技...     

爆破振动对水工建筑物的影响和评价

由于人工爆破等原因产生的振动会对建筑物产生一定的影响,振动监测评价很有必要。文中介绍了一个爆破振动监测的实例,通过对坝体、闸房、电站厂房位置进行爆破振动监测,采用质点振动速度参数,客观评价了爆破振动对上述水工建筑物的影响,结合地震峰值加速度这一设计参数,得出爆破振动对上述建筑物无不良振动影响的结论。     

遂昌应村发电引水隧洞开挖施工技术探讨

目前，水工隧洞光面爆破施工技术应用日趋普遍，今着重从施工角度阐述了对光面爆破施工质量影响较大的几个因素及控制方法。     

Understanding the connection between blasting and highwall stability

Surface mines continue to implement highwalls for several reasons, such as increasing recovery, improving margins, and justifying higher stripping ratios. Highwall stability is a complex issue that is dependent upon a variety of mining and geologic factors, and a safe design is necessary for a successful surface operation. To improve highwall stability, it is important to understand the connection between local geology and blasting. Explosives are employed throughout the mining industry for primary rock breakage. There are a number of controlled blasting techniques that can be implemented to improve highwall stability.These include line drilling, smooth wall blasting, trim blasting, buffer blasting, air decking, and presplitting. Each of these techniques have associated advantages and disadvantages. Understanding local geology is necessary for selecting the appropriate controlled blasting technique. Furthermore, understanding the limitations and conditions for successful implementation of each technique is necessary. A discussion of the impact of geologic conditions on highwall stability is provided. Additionally, discussion is provided for the successful incorporation of the controlled blasting techniques listed above, and the associated mining and geologic factors that influence the selection and design of controlled blasting plans.Finally, a new methodology is proposed.     

福州电厂扩建工程施工爆破振动效应及控制

华能福州电厂扩建工程的土石方爆破部位临近正在运行的既有电厂,需要严格控制爆破振动影响.在爆破施工中进行全面的爆破振动监测,为优化钻爆方案及参数和科学评价爆破振动的安全影响提供依据.提出爆破振动控制分区及现场监测警告等方法,有效地控制了爆破振动强度并提高了爆破施工效率.通过对典型实测信号进行频谱分析,得到了该工程爆破振动信号的能量分布特性.     

Guiding-controlling technology of coal seam hydraulic fracturing fractures extension

Aiming at the uncontrollable problem of extension direction of coal seam hydraulic fracturing, this study analyzed the course of fractures variation around the boreholes in process of hydraulic fracturing, and carried out the numerical simulations to investigate the effect of artificial predetermined fractures on stress distribution around fractured holes. The simulation results show that partial coal mass occurs relatively strong shear failure and forms weak surfaces, and then fractures extended along the desired direction while predetermined fractures changed stress distribution. Directional fracturing makes the fractures link up and the pressure on coal mass is relieved within fractured regions. Combining deep hole controlling blasting with hydraulic fracturing was proposed to realize the extension guiding-controlling technology of coal seam fractures. Industrial experiments prove that this technology can avoid local stress concentration and dramatically widen the pressure relief scope of deep hole controlling blasting. The permeability of fractured coal seam increased significantly, and gas extraction was greatly improved. Besides, regional pressure relief and permeability increase was achieved in this study.     

沟槽开挖工程中预裂（深孔）爆破技术的研究

对洋浦电厂海水冷却箱涵沟槽预裂（深孔）爆破技术的研究，给出了复杂地质条件下合理的控制爆破参数及微差起爆方式；针对砂层地段难以钻、爆的特点，笔者亦进行了有益的探讨。     

Structural safety criteria for blasting vibration based on wavelet packet energy spectra

Given multi-resolution decomposition of wavelet packet transforms, wavelet packet frequency band energy has been deduced from different bands of blasting vibration signals. Our deduction reflects the total effect of all three key elements (intensity, frequency and duration of vibration) of blasting vibration.We considered and discuss the dynamic response of structures and the effect of inherent characteristics of controlled structures to blasting vibration. Frequency band response coefficients for controlled structures by blasting vibration have been obtained. We established multi-factor blasting vibration safety criteria, referred to as response energy criteria. These criteria reflect the total effect of intensity,frequency and duration of vibration and the inherent characteristics (natural frequency and damping ratio) of dynamic responses from controlled structures themselves. Feasibility and reliability of the criteria are validated by an example.