切槽

控制爆破局部切槽放顶技术的基本参数研究

Study of basic parameters on local grooving top-caving with controlled explosion

激光切槽加工的一种数值仿真方法

A Numerical Simulation Method for Laser Grooving

切槽爆破中V形切槽产生的力学效应研究

Studies on the mechanical effects produced by the V-shaped notch borehole blasting

U形切槽三点弯曲梁的应力集中系数

Stress Concentration Factors for Three-Point Bending Beam with Single-edge U-shaped Notch

用两种3点弯曲圆梁（分别具有人字形切槽和直切槽）测定了一种重庆灰岩的断裂韧度K。

Chevron-notched and straight-through-notched three-point bend round bars are used to test fracture toughness K of a Chongqing limestone .

用U形切槽梁同时测定准脆性材料的拉伸强度和断裂韧度：理论分析

Concurrent measurement of tensile strength and fracture toughness of quasi-brittle materials using u-notched beams : theoretical analysis

人字形切槽短圆棒断裂韧度试样及其BEM标定

The chevron notched short rod fracture toughness specimen and its BEM calibration

YAG固体激光切槽是当前最先进的连杆裂解槽加工工艺，但其激光加工参数的选择主要依靠经验。

YAG solid laser notching is an technology , but the choice of laser processing parameter depends on experience mainly .

处理方案主要包括骑缝切槽、水下灌浆、骑缝切V形槽、嵌压SR止水材料、粘贴SR防渗盖片等。

The treating schemes were included the followings : slotting across cracks , grouting under water , V-shaped slotting across cracks , caulking SR materials , pasting impervious SR cover sheet .

作者对45钢等三种延性金属材料进行了人字形切槽短小柱体平面应变断裂韧性K（IC）测试法的实验研究。

The experimental study of the measurement method of the plane strain fracture toughness K_ ( IC ) . using the Chevron-Notched short red and short bar specimens was carried out for 3 ductile metals , such as No. 45 steel etc.

介绍了一种将会得到广泛应用的断裂韧度试样&人字形切槽短圆棒，以及三维边界元法（BEM）的标定结果。

In this paper , the chevron notched short rod fracture toughness specimen , which is soon to be widely applied , is introduced , results of BEM calibration for this specimen are given .

通过对V型切槽爆破断裂成缝机理的分析研究和模拟对比计算，提出了切槽尖端动态应力集中和V型切槽尖端附近区域裂缝生成抑制联合作用的断裂成缝机理。

The Fracturing mechanism under combined action of the dynamic stress concentration on notch tip and the restraint of crack growth in areas near dose to V shape notch tip is presented , according to theoretical analysis and computerized simulation of V shape notching blasting .

若继续开采至780m水平，应在796.7m附近实施二次切槽。

Second roof cutting should be performed nearby 796.7m level if ore is mined continuously to 780m level .

用人字形切槽巴西圆盘（CCNBD）确定岩石断裂韧度及其尺度律

Determination of mode-I rock fracture toughness with cracked chevron notched Brazilian disc ( ccnbd ) and application of size effect law

采用压电陶瓷基板与1-3型压电复合材料串联连接，沿表面两相互垂直的方向切割PZT陶瓷，在切槽间浇注环氧树脂，制备出新型的1-3-2型压电复合材料。

A novel 1-3-2 piezoelectric composite was developed , which was composed of piezoelectric ceramic plate and 1-3 piezoelectric composite in structure . It was fabricated by dicing PZT ceramic along mutually perpendicular directions on the flat surface and then filling epoxy into grooves .

本文所涉及到的YD4140型切槽机则是兰州理工大学裂纹技术研究所基于裂纹技术理论的研究成果。

The model YD4140 notch-cutting machine in this paper is a technological achievement proposed by Institute of Crack of Lanzhou University of Technology .

有鉴于此，用两种大理岩制作成CCNBD和ISRM1988年建议方法推荐的人字形切槽三点弯曲圆棒（CB）试样，分别在MTS810型材料试验机进行试验。

In view of it , two types of marbles are used to make CCNBD and chevron bend ( CB ) specimen suggested by ISRM in1988.These specimens are tested on the test machine of MTS810 model .

用断裂力学理论和Westergaard方法，确定了复变应力函数，推导出螺旋切槽在准静态压力作用下的裂纹尖端平面应力、应变场。

Fracture mechanics and Westergaard Stress Function are adopted to build a complex stress function to derive the plane stress and strain fields at one tip of the crack under a Quasi-static pressure .

本文基于分离式霍普金森压杆（SHPB）试验技术，借助平台人字形切槽巴西圆盘型试件（CCNBD），详细研究了取自3个深度下同一岩性（玄武岩）的岩石动态断裂韧性的测试方法。

Based on Split Hopkinson Pressure Bar ( SHPB ) testing system , and using Flattened Cracked Chevron Notched Brazilian Disc ( CCNBD ) specimen , this paper researches the dynamic fracture toughness test method of the same basalt with three different depths .

利用线弹性断裂力学的柔度法标定技术，建立了用直切槽巴西圆盘（CSTBD）试样确定岩石拉伸弹性模量的方法。

Based on the compliance method of linear elastic fracture theory , a method is established to determine the tensile elastic modulus by measurement of the elastic compliance of cracked straight through Brazilian disc specimen ( CSTBD ) .

该计算公式适用于连续、规则的采空场，否则，将会出现较大的偏差。例如，二次切槽位置的计算结果（796.7m）偏差较大。

The calculating formulas can only be used for continuous and regular abandoned stope , otherwise large deviation of cutting position occurs , for instance , the deviation of analytic result for the second cutting position ( 796.7m ) is larger .

用于金属和非金属材料的人字形切槽断裂韧度试样

Chevron-notched specimens for testing fracture toughness of metallic and non-metallic materials

岩石炮孔预切槽爆破断裂成缝机理研究

Investigations into mechanism of crack formation for grooved hole well blasting

变速器螺纹板切槽模设计

Design of Cutting Slot Die for the Derailleur Screw Thread Plate

深孔大直径切槽预裂爆破切槽刀具的研制

Development of Notch Cutting Tool for Deephole Large-diameter Notch Presplitting Blasting

最后，提出了螺旋切槽松动爆破的方法及优点。

It represents an idea of spiral V-notched blasting at last .

切槽机建模及其工作过程模拟

Model establishment of notch cutting machine and its operation process simulation

切槽炮孔切槽参数的研究

An Investigation into the Notch Parameters of a Notched Borehole

数控车床切断与切槽时的振刀分析及解决方法

Analysis and Resolution of Flapping When CNC Lathe Was Cutting

切槽成墙技术在堤防工程中的应用

The Slotting wall Forming Technology Applied in the Dam Engineering