1) undercut experiment
掏槽试验
1.
Study of the undercut experiments by blastingin underwater rock plugs of water intakes in Xianghongdian Power Station;
响洪甸电站进水口水下岩塞爆破掏槽试验研究
2) cutting
[英]['kʌtɪŋ] [美]['kʌtɪŋ]
掏槽
1.
Combining the specific engineering practice,this paper discussed the theoretic and practical bases of reasonable lying of the cuttings hole toward characteristics of the big cross-section sap tunneling demolition,and calculated the reference quantity of explosive in single hole under condition of the mild-rigidity rocks.
文章结合具体工程实践 ,针对大断面坑道掘进爆破的特点 ,依据具体的工程要求 ,对深孔掏槽的布设参数作了探讨 ,提出了掏槽孔合理布设的理论和实践依据 ,并计算出了在中等硬度岩石中的参考单孔药量 ,对坑道掘进施工中的类似情况有一定的参考作用。
2.
By using the LS-DYNA 3D nonlinear dynamic finite element software,the elasticity calculation model was established to analyze the generation and transmission of stress under explosive charge in 4 typical cutting patterns,those used in shaft excavation by one-step blasting were optimized and compared by numerical simulation to select the optimizing cutting patterns.
对坚硬岩石条件下深孔一次爆破成井的九孔、双孔菱形、单螺旋和双螺旋4种掏槽方式,在炸药爆炸荷载作用下的应力产生和传播机理进行了计算机数值模拟。
3.
In this paper, the author combined the experience of tunnelling construction bystraight-in hole cutting blasting within 30 years in the country with the theory and practice in the blasting wor of Sweden, U.
该文系作者30年来在国内外隧道掘进施工中应用直眼掏槽爆破积累的经验,并在不断提高和改进过程中,大量汲取了瑞典、美国和加拿大等国家的理论与经验写成,对中等硬度及坚硬岩层隧道爆破掘进具有一定的理论和实用意义。
3) cut
[英][kʌt] [美][kʌt]
掏槽
1.
The movement law of the smashed rock mass in the cut blasting was studied using two phase flow method drawn on the experience of industry.
借鉴工业生产中的两相流动方法研究掏槽爆破中的颗粒运动规律。
2.
Physical models of fragment discharge process are established and the fragment discharge law is discussed by the rational simplification of parallel-cut blasting process in this paper.
通过对直眼掏槽爆破过程的合理简化,建立了排碴过程的物理模型,研究了排碴规律,并通过实例对其合理性进行了验证。
4) undermine
[英][,ʌndə'maɪn] [美]['ʌndɚ'maɪn]
掏槽
1.
The undermine method of well drilling technology once of blasting is put forward as well as the calculation of blasting parameters and the demand of implementation for hole.
介绍了爆破一次成井技术在漂塘钨矿的应用实践,提出了爆破一次成井的掏槽方式,爆破参数的设计计算方法和炮孔的施工要求。
5) tube experiment
试槽试验
6) flume test
水槽试验
1.
The velocity distribution characteristics, variation of the boundary shear stress and influences of the hydraulic parameters on the discharge capacity in a compound cross section channel are studied by using flume test.
采用水槽试验研究复式断面水流流速的横向分布特征、边界剪切应力变化规律以及水力参数对断面过流能力的影响,并得出了滩槽流量分配计算式。
2.
The results of flume tests show that a suitable sucking spouting discharge (1 5%-2% of the whole .
水槽试验表明 ,吸、喷水量为水槽中总流量的 1 5 %~ 2 %时 ,回流长度将减小 70 %~ 80 % 。
3.
A flume test is carried out on the threshold velocity for the coherent silt sampled in the sea area near the Cangnan power plant in Zhejiang Province.
结合浙江苍南电厂工程要求,在拟建航道处的试挖槽附近取样,对粘性淤泥的起动进行了室内水槽试验。
补充资料:哈林-布留姆槽试验
分子式:
CAS号:
性质:用于测定电镀液分散能力的试验。测定时所用的阳极为网状或多孔金属,阴极为两个尺寸相同的金属板。此二阴极离开同一阳极的距离分别为x1和x2(x1为远阴极,x2为近阴极)。在规定的电流密度下电镀一定时间,然后称出远、近阴极的增重w1和w2,则可按下式计算:分散能力(以百分数表示)=(K-B)/(K+B-2)×100%。其中K=x1/x2,B=w2/w1。根据上式,分散能力最佳的溶液其值为+100%,分散能力最差的溶液其值为-100%。溶液的分散能力好坏与电解质的导电能力、电沉积反应的塔菲尔斜率以及析氢状况有关。
CAS号:
性质:用于测定电镀液分散能力的试验。测定时所用的阳极为网状或多孔金属,阴极为两个尺寸相同的金属板。此二阴极离开同一阳极的距离分别为x1和x2(x1为远阴极,x2为近阴极)。在规定的电流密度下电镀一定时间,然后称出远、近阴极的增重w1和w2,则可按下式计算:分散能力(以百分数表示)=(K-B)/(K+B-2)×100%。其中K=x1/x2,B=w2/w1。根据上式,分散能力最佳的溶液其值为+100%,分散能力最差的溶液其值为-100%。溶液的分散能力好坏与电解质的导电能力、电沉积反应的塔菲尔斜率以及析氢状况有关。
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