本文用解析方法对粘弹介质围岩中的锚杆作用进行了分析研究。
The effects of bolting in viscoelastic rock media are studied by analytical methods in this paper.
锚杆作用可增强结构体的力学性能,降低裂纹尖端的应力集中现象,提高裂纹尖端裂纹的起裂荷载;
The role of bolts is to improve the performance of the structural mass, weaken the stress intensity at the crack tips and increase the crack propagating loads.
由于系统锚杆作用的被动性和边坡岩体变形的非均匀性,使得不同位置的锚件的应力出现较大的差别。
Because of the passivity action of systematic bolts and the heterogeneity of rock mass deforming, systematic bolts have different stress in different position.
过度膨胀的楼市,商业和办公室房地产价格由于极度的槓杆作用和低息贷款,尽管在2008年下跌,仍可能面对大幅滑落。
Over inflated house, commercial and office real estate prices due to excessive leveraging and easy money, will likely faces sharp fall ahead, despite their drop in Y2008.
但是,哈利·维尔注意到,秀丽隐杆线虫不能用于自由基对干细胞作用的研究,有证据表明这一点或许非常值得注意。
Halliwell noted, though, that C. elegans can not be used to study the effect of free radicals on stem cells, which evidence suggests may be important.
当臂杆运行到上下两个极限位置时,分别压下限位开关,切断主控电路,变幅电机停车,达到限位的作用。
When the arm runs to the upper and lower two limit position, respectively press the lower limit switch, cut off the main control circuit, variable amplitude motor parking, to limit the role.
非旋转式,双作用,双杆。
算例表明一些描述杆几何形状的变量在撞击分析中具有重要作用。
It is also found that some variables describing the geometrical shape of rods play an important role in impact dynamic system.
此电算程序也适用于受压杆件有横向均布荷载作用的情况。
This program is also suitable to the situation of imposing on crosswise distribution load.
单作用,单杆,弹簧复位。
作用于该杆上的固端力矩暂且都不考虑。
The fixed end moments acting on the member are ignored for the moment .
垂直杆件则借悬臂作用产生和拱挠度相等的悬臂挠度,来承担足够的荷载。
Vertical elements carry sufficient load through cantilever action to produce cantilever deflections equal to arch deflections.
我们发现人蛋白相互作用网络比黑腹果蝇的蛋白质相互作用组规模大一个数量级,比秀丽隐杆线虫的蛋白质相互作用组规模大3倍。
We find that the human interaction network is one order of magnitude bigger than the Drosophila melanogaster interactome and 3 times bigger than in Caenorhabditis elegans.
采用数值模拟与实验相结合的方法研究杆式射流装药水下作用行为。
Combined studies on the behavior and effects of jetting penetrator charge when operated underwater were performed in simulation and experiment.
由于导向杆的引导和扶正作用,阻止了磨鞋、铣锥偏磨,解决了磨损套管现象,现场应用效果显著。
As the guide rod and righting the role of shoes to prevent the grinding, milling, and grinding cone side solves the wear phenomena, field application results are obvious.
研究了随机杆系结构在随机荷载作用下的随机优化设计问题。
The stochastic optimization method for skeletal structures with random parameters under random loads action is studied.
应用锚杆兜吊和锚索悬吊两种作用设计了锚杆支护参数。
The parameters of suspension roof support were determined based on hanging action with a bolt-wire or cable truss.
作用于该杆上的固端力矩暂且都不考虑。
The fixed end moments acting on the member are ignored for the moment.
本文是对自锁锚杆在拉伸和剪切荷载共同作用下的锚固机理进行研究。
The anchorage mechanism of the locking anchor under tension together shear loads is studied in the paper.
本文利用自制的光粘弹性材料,用光弹性法研究了在轴向拉伸荷载作用下带有圆孔的杆件中的粘弹性应力集中系数。
A photoelastic study for the viscoelastic stress-concentration factors in bars with a round hole under axial tension load, using self-made viscoelastic materials is presented in this paper.
本文介绍了一种求圆弧形曲杆在均布荷载作用下任意截面内力的简化计算方法—等效直杆法。
This paper introduces a simlpe calculating method, of evaluating any section internal force of circular bent rod effected by even load.
应用材料力学理论,阐明了锚杆支护时锚尾一定受到偏心载荷作用和顶板锚杆破断的机理。
With material mechanics theory, expounded bolt tail subjected to no center load action and roof bolt broken mechanism while roadway was supported with bolts.
本文根据作者提出的线性化方法,对于斜向波浪和水流作用下水平杆件上的拖曳力做了线性化。
Based on the linearization method presented by authors, the force spectrum on horizontal cylinder by diagonal wave and current is established.
超前支护锚杆锚固后与顶板岩石构成一体,这样使超前锚杆形成组合梁作用,放炮后,能够阻止顶板岩石冒落。
Forward support bolt combined with roop rock by bolting can play a roll of combined beam, which can prevent roof rock caving immediately after explosion.
构建了区间参数杆系结构在区间荷载作用下的分析模型,导出了结构的区间位移和区间应力响应区间变量表达式。
The finite element analysis of truss system with interval parameters under interval load is studied and the structural interval displacement and stress response are deduced.
柔性注压锚杆是一种新型结构锚杆,其锚固作用机理不同于传统的刚性锚杆。
The flexible pressurized anchor is a new type of anchor, the anchoring principleof which is different from the conventional anchor.
荷载在传力杆中的传递由竖向弹簧模拟,其弹簧刚度取决于传力杆的特性以及杆与板间的相互作用。
The load transfer on dowels is modeled as vertical springs, whose stiffness depends on the dowel properties and the dowel-plate interaction.
通过试验研究受压作用下临空结构面的扩展特点以及锚杆的作用。
The growing modes of surface structural planes under compressive load and the function of the bolts are studied by experimental methods.
通过试验研究受压作用下临空结构面的扩展特点以及锚杆的作用。
The growing modes of surface structural planes under compressive load and the function of the bolts are studied by experimental methods.
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