分析城市道路水泥稳定碎石基层产生裂缝的原因,提出综合防治措施,以保证沥青混凝土路面的正常使用。
To keep the normal use of asphalt pavement, analyse the reason on basic crack for cement stable breakstone of the urban road, prate the method on prevention and cure.
水泥稳定碎石基层沥青路面容易产生裂缝,特别在重载交通条件下,路面结构更容易过早破坏。
The asphalt pavement on cement-stabilized crushed stones base produces cracks easily so that the structure of pavement is destroyed too easily, specially under heavy vehicles.
在上述静载试验基础上,进行了疲劳荷载作用下混凝土裂缝稳定扩展过程研究。
Based on the static experiment mentioned above, the research of stable crack growth process of concrete under fatigue loads was carried out.
但对于实际中最广泛存在的硬脆性泥页岩,裂缝和微裂缝的存在是普遍性的,而且对泥页岩稳定的影响是不可忽视的。
But with brittle shale that widely exist in the world, fractures and micro-fractures are ubiquitous, its effect on shale stability cannot be neglected.
研究结果表明,当裂缝、裂隙、微裂隙、孔隙等不同尺度、不同层次缺陷并存时,高层次缺陷对岩体的变形、稳定、破坏起着主导控制作用。
The result indicates that the arrangement defect controls the deformation, stability and rock mass failure when the scales of crack, fissure, cavity, spacing, hole are coexisting in rock masses.
因此线弹性断裂力学可以很好地应用于大体积混凝土结构的裂缝稳定性分析和改进水工结构的设计方法。
Therefore, linear elastic fracture mechanics can be applied to stability analyses of cracks in mass concrete structures and to improving design methods of hydraulic structures.
裂缝渗漏是引起钢筋混凝土破坏的原因之一,而非稳定性裂缝更因其不稳定性而难于处理。
The leakage from the crack is one of causes for reinforced concrete rupture, and the unstable crack is difficult to be treated for its unstability.
在研究裂缝失稳机理及特征的基础上,应用突变理论,建立了裂缝的突变模型,并得出裂缝稳定性的判据。
Based on analyzing the mechanism of destabilization of crack in dam, the mutation model is established by use of catastrophe theory, and the criterion of the stability of crack is given.
穿过单条或者多条裂缝的压裂水平井不稳定渗流问题是一个复杂的渗流力学问题。
Unsteady porous flow in horizontal Wells with single or multiple fractures is a complicated study of mechanics through porous media.
最后探讨了非饱和土中表面裂缝的形成对边坡稳定和变形的影响。
The influence of cracks in clay surface on the stabilization and deformation of slope was discussed.
人为破坏改变了自然斜坡的稳定状态,产生了初始的拉裂缝。
Artificial damage change stability of natural slope, and lead to formation of tensile fissure.
坝踵裂缝扩展是重力坝破坏的开始。应该用断裂力学方法校核坝踵裂缝的稳定性,并以此作为重力坝稳定的补充条件。
Stability of the crack should be checked by the method of fracture mechanics, which should be a supplemental stability condition of the gravity DAMS.
采取这些加固措施后,现场检查和监测表明,大坝渗漏水明显减少,坝腔温度升高、温差变幅减小,劈头裂缝稳定。
After these measures, site inspection and monitoring showed that the dam seepage decreased, dam temperature rose, temperature difference minimized and the cracks turned stable.
实木地板物理形状不稳定的主要表现形式为涨变、裂缝和漆膜龟裂。
The instability of wood floors refers to swelling, cracking and paint chapping of their physical shapes.
数目众多的纵、横向裂缝已大大削弱了混凝土顶拱的强度、刚度及稳定性,危及地下厂房的安全运行。
With the influence of so many cracks, the strength, stiffness and stability of the umbrella arch is decreased greatly, which endangers the operation of underground power house.
商品混凝土的稳定、可靠、优良的质量深受建设单位的青睐,但是,目前使用商品混凝土施工的工程出现最常见的当数裂缝问题。
The stability, reliability, good quality of commercial concrete are popular among construction units. However, the most common problem in current commercial concrete work is crack problem.
其中,裂缝型以及孔洞型储层很难形成稳定的产能;
The fractured and vuggy reservoirs can′t form stable productivity;
沥青加铺层反射裂缝扩展过程要经历三个阶段:起裂阶段、稳定扩展阶段、破裂阶段。
The reflective crack go through three stages: the stage of crack arises, expand stage, break stage.
减少水泥稳定碎石基层材料的干缩裂缝,对延长半刚性基层沥青路面的使用寿命至关重要。
It is extremely important to reduce dry shrinkage cracking of cement-stabilized macadam base course materials for prolonging service life of asphalt pavement with semi-rigid base.
表面易被磨光而影响安全,温度稳定性差,夏天易软、冬天易脆并产生裂缝。
Temperature stability is poor with easy soft in summer and brittle in winter and tends to be cracks.
持荷封闭裂缝梁与普通钢筋混凝土梁一样,都存在着止裂高度,即裂缝高度基本都稳定在梁高的0.7倍0.8倍。
Both the RC beams with cracks filled under loading and general RC beams have some maximal crack heigh about 0.7 ~ 0.8 times the test beam height.
实验结果表明,该算法能稳定有效地提取出图像中的连续裂缝边缘,可用于路面裂缝的自动检测。
Experimental results show that the continuous cracks can be stable and effectively extracted. It is beneficial for the automatic detection of pavement cracks.
现对其劈头裂缝稳定性进行分析和评价。
This paper analysed and appraised the stability of abutment cracks.
考虑了钢筋与混凝土的粘结滑移作用,以裂缝前端应力强度因子为判据,分析了裂缝的稳定性和钢筋的限裂作用。
The studies based on the stress intensity factor of the front of crack, and the effect of bond and slip between steel and concrete were considered.
这种差异变形会随着时间加剧,最终导致路基纵向裂缝的发育进而严重影响路基的稳定性。
The deformation difference will be aggravated with time; and finally the embankment stability is affected by longitudinal cracks of embankment caused by asymmetric settlement of permafrost.
第二,通过对旧水泥稳定碎石破碎后结构层强度损失和抵抗反射裂缝能力的分析,以及结合国内外研究资料,提出破碎层颗粒粒径范围。
Secondly, by analyzing the loss of strength in the base and reflection crack occurs, combining research data in and abroad, the size of broken stones was proposed.
1556年华县大地震,在渭南市区产生了大量的地震裂缝,研究与工程实践表明,这些裂缝遗迹目前已处于稳定状态。
A great of seismic fractures were produced by the major earthquake in Hua county in 1556.
1556年华县大地震,在渭南市区产生了大量的地震裂缝,研究与工程实践表明,这些裂缝遗迹目前已处于稳定状态。
A great of seismic fractures were produced by the major earthquake in Hua county in 1556.
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