露天矿潜孔钻机泡沫除尘发泡剂配方的实验研究

为了解决露天矿潜孔钻机粉尘浓度严重超标的问题,改善干式捕尘器、湿式凿岩除尘效率低、应用效果差的现状,采用改进ROSS-Miles 法进行发泡剂性能评价实验,研制出一种发泡性能好且适用于露天矿潜孔钻机泡沫除尘的发泡剂配方。通过单一发泡剂实验,分别以液流停止后0和5 min时的泡沫体积表示发泡剂的发泡能力和泡沫稳定性,优选出发泡性能优良的3种发泡剂进行两两复配,同时加入稳泡剂及无机盐,以增强发泡剂的稳泡效果及发泡能力,最终确定了发泡剂的最佳配方为：C(A)=0.5%,C(B)=1.0%,C(G)=0.3%,C(NaCl)=0.5×104 mg/L。通过工业性试验发现,使用泡沫除尘后采场空间粉尘浓度大幅度降低,平均降尘率高达90%以上。     

风动潜孔锤钻进技术在北京地铁降水中的应用研究

介绍了风动潜孔锤钻进技术在北京地铁工程降水中的施工实验,通过与其它成井工艺进行比较,讨论了引入该技术到北京地铁工程降水施工中的可行性与必要性。     

潜孔钻机回退时卡钻机理及控制方案研究

通过对潜孔钻机回退过程中卡钻机理的分析，提出了利用回转压力突变信号控制推进器推进的自动防卡钻控制，并对其临界回转压力的确定进行了理论研究。     

赞比亚沙漠地区钻井工艺的探讨

介绍了在赞比亚沙漠地区使用的风动潜孔锤钻进、泥浆回转钻进、人工挖井等多种钻进成井工艺,通过比较,提出了最佳的钻井施工方法.     

WQ-75A型气动潜孔冲击器的电算模型的建立及其应用

根据WQ－75A型冲击器结构原理,将其视为一热力系统,以气体热力学和动力学理论为基础,建立了冲击器动力过程数学模型,并为计算机模拟气动冲击暴动力过程和分析动力参数提供了理论依据和方法。     

长春市轻轨工程大漂石地层灌注桩成孔钻进技术

结合长春市轻轨工程斜拉桥钻孔灌注桩施工实例，介绍了大漂石地层的筒钻法钻进原理、潜孔锤钻进工艺、岩心聚能爆破工艺及筒钻回转切石工艺等，为该类地层的顺利成孔成桩总结出了一套切实可行的施工方法。     

Numerical solution for dynamics of pneumatic DTH hammer system

The pneumatic down-the-hole(DTH)hammer is one of the efficient equipments used in medium hard to very hard rock drilling frield,and any change in its structure design affects all performance parameters of a pneuamtic DTH hammer directly.Yet,owing to the complexity of the dynamic interaction among the components in DTH hammer systems,until now it has been difficult to obtain reliable estimates of the design parameter affects.Thus providing an design parameter optimization and the layout of dynamics behavior of DTH hammer is of great importance.This paper documents the development and solution of a computational model for the dynamic response of a pneumatic DTH hammer.The model consists of rigid piston dynamics equation and chamber thermodynamics equations.The resulting model represented by a set of coupled nonlinear differential equations were computed in Visual C++ program.The developed solutions are used to perform a parametric study to illustrate the inffluence of the piston mass and supply pressure on the impact performance of DTH hammer system.     

Effect of borehole charge structure on the parameters of a failure zone in rocks under blasting

The calculation scheme of rock failure under explosion of a borehole charge is presented with account for density of borehole filling with an explosive, availability of air and inert intervals. According to the calculated data, the introduction of air intervals diminishes the specific explosive consumption by 9–27% depending on the explosive power intensity. The similar effect is gained by introducing an inert rod into a borehole charge. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 4, pp. 77–85, July–August, 2007.     

Relaxation and Temperature of Explosive Detonation Products

The causes of changing temperature of gaseous energy-carrier under explosive loosening of a rock mass are considered. An equation is proposed to calculate the temperature of detonation products in a state of relaxation. __________ Translated form Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 5, pp. 40–49, September–October, 2005.     

露天矿潜孔钻泡沫抑尘剂配方及试验研究

为有效降低露天矿潜孔打钻作业产生的大量粉尘,并解决湿式抑尘用水量大的问题,基于泡沫抑尘原理,从发泡性能及湿润性能两个方面来设计复配实验。以泡沫综合指数、表面张力、接触角及反向渗透吸重为指标,优选出最佳泡沫抑尘剂配方为α-烯烃磺酸钠、脂肪醇聚氧乙烯醚硫酸钠、十二烷基二甲基甜菜碱和椰子油单乙醇酰胺,各成分质量分数分别为0.15%,0.20%,0.05%和0.50%。经现场试验,验证该配方的泡沫抑尘效果良好,在下风向5 m工作区域内全尘除尘率平均值为87.8%,呼吸性粉尘除尘率平均值为80.7%,明显优于喷雾降尘及干式除尘效果。     

Explosion booster for blast hole fans

The author describes the construction of an explosion booster composed of a waveguide and a membrane. The booster is placed at the bottom of a blast hole and is initiated by detonation wave. Experimental underground tests of explosion boosters showed the qualitative ore blasting results, in particular, with fan-patterned blast hole drilling. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 6, pp. 30–35, November–December, 2008.     

Effect of stemming on rock breaking with explosion of a cylindrical charge

A calculation scheme is developed for the destroying action of explosion of a borehole charge in a brittle medium taking account of the ejection of stemming material and outflow of detonation product gases. The influence of different rock and explosive parameters on the efficiency of stemming application is studied. Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 5, pp. 42–52, September–October, 1999.     

Principles of the turbo-explosion of explosive charges part 2: Calculation of the thermal effect of detonation

Conclusions Coefficients that characterize the relative compression of the substance in the CJ plane and on the shock front of the detonation wave are found by means of Eqs. (8). For a specific explosive, the state of the substance on the shock front of the detonation wave depends on the initial density (specific volume) of the charge of explosive and obeys adiabatic law (27) with adiabatic exponent (26). Accordingly, the differences between individual explosives of the C_aH_bO_cN_d type with respect to detonation velocity (36), mass velocity (38) and (39), and pressure (40) and (41) in the CJ plane and on the shock front of the detonation wave are determined mainly by the density of the single crystal of the corresponding explosive and its detonative heat of explosion. For individual explosives of the given type, detonative heat of explosion reaches its maximum at the maximum density of the charge (the maximum density of the single crystal). The corresponding values for ten explosives are shown in Table 1. A decrease in charge density is accompanied by a decrease in heat of explosion in accordance with law (37) and an increase in the importance of the thermal effect of the deflagration reactions, which are highly sensitive to the blasting conditions. Mining Institute, Siberian Branch of the Russian Academy of Sciences. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 3, pp. 52–65, May–June, 1998.     

圆柱形钢筋混凝土基础的控制爆破拆除

介绍了运用排间微差 ,孔内不连续装药的控制爆破技术 ,拆除 5个圆柱形钢筋混凝土基础的工程实例 ,重点论述了其爆破参数设计、施工工艺和安全防护措施     

Turboblasting explosive charges. III: Profile of the detonation reaction path

The detonation of individual solid explosives of C_aH_bO_cN_d type is described by introducing the concept of a nonthermal potential as the sum of several types of energy—chemical energy, elastic compression, the electron state of the molecules, and the kinetic energy of the flux. Graphs of the variation in the nonthermal potential and the internal energy of the substance, the kinetic energy of the flux, and the pressure in the head region of the detonation wave right up to the Chapman-Jouguet plane are plotted. The relations between the various types of works performed at the shock front are calculated. Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk. Translated from Fiziko-Tekhnichskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 2, pp. 60–71, March–April, 1999.     

On law of pulse conservation at the Chapman-Jouguet plane and the pressure of detonation products on the walls of a borehole

An expanded representation is given for the law of pulse conservation with transition through a shock front taking account of the thermal component of pressure. Equations of state for detonation products in the vicinity of the Chapman-Jouguet plane differ in the longitudinal and transverse directions. Equilateral pressure is established during their expansion by a factor of 2.5, but flow movement ceases in the case of three-fold expansion. Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 5, pp. 62–78, September–October, 1999.     

装药结构对孔壁压力影响的理论探讨

对炮孔耦合装药、空气不耦合装药、水不耦合装药等几种装药结构形式爆破时孔壁的透射压力进行了理论分析,结果表明：同等炸药和岩石条件下,耦合装药,爆轰波直接冲击孔壁,孔壁透射压力最大;水不耦合装药,爆轰波冲击压缩水介质激起水中冲击波,由水将爆炸压力传递给岩石,孔壁冲击压力降低;而空气不耦合装药,爆轰产物则膨胀充满炮孔后再作用于孔壁,孔壁压力最小。且随着装药不耦合系数值增大,孔壁压力降低,空气不耦合装药时孔壁压力下降速率更快。     

Numerical calculation of pressure in a perforated well under a propellant charge burning

The present studies cover the variations of the oil well pressure in time, movement of the combustion products — well fluid interface, temperature of gas and casing in the combustion area under the actuation of solid fuel pressure generators employed to enhance the oil or gas inflow into wells. The length of a vertical fracture induced in a stratum, is evaluated based on the calculated volume of fluid squeezed into an oil stratum through perforations. __________ Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 6, pp. 28–36, November–December, 2007.     

瑞典高风压潜孔凿岩钻具

潜孔凿岩钻具是一种以压缩空气为动力源,将凿岩冲。杆动力部分潜入凿岩孔中,通过冲击器中的配气装置控制活塞作往返运动,冲击配置在冲击器前端的潜孔凿岩钻头,将冲击能量传递到钻头,由钻头破碎岩石的凿岩设备。     

龙羊峡水电站左岸坝肩尾工超深定向排水孔施工控制技术

龙羊峡水电站左岸坝肩尾工4个孔径130 mm、孔深80 m超深倾斜定向排水孔工程,从坝肩EL2610全部钻通至EL2530排水廊道(2 m×2.5 m)理论设计终孔点。采用瑞典Atlas-A32型潜孔钻机施工。针对该钻机钻具偏垂度3%的困难(同时也验证了其偏垂度3%的科学性),从技术参数控制和施工工艺控制上克服了潜孔钻施工超深定向孔偏垂度过大的技术"瓶颈",总结出了瑞典进口Atlas系列潜孔钻机冲击回转钻具施工超深定向孔的技术成果,为国内不同行业同系列Atlas系列钻机施工超深定向孔提供了参考依据。