同时，对比分析了水平荷载对裂缝扩展的影响。
大体积混凝土在浇筑中的一个重要技术课题是控制裂缝扩展。
A big technical problem for mass concrete structures during pouring is how to control crack expansion.
大体积混凝土基础施工的一个重要的技术课题是控制裂缝扩展。
One of the most important technology of the construction of the mass concrete base is to control the expand of cracking.
对坝体裂缝扩展的分析计算，用断裂力学的理论和方法较为适宜。
And it is suitable to analyze dam crack propagating with fracture mechanics methods.
在重复压裂过程中，裂缝扩展动态监测是保障作业能否成功的关键。
During the refracturing process, monitoring fracture propagation is important to ensure the success of the job.
多裂纹体的裂缝扩展研究为重力式碾压混凝土坝仿真破坏过程研究提供了条件。
Study on the propagation of cracks in multi-cracked body leads to a good method for studying the actual simulated gradual destroy process of roller compacted concrete dam.
试验表明，本文结果中水压裂缝扩展控制参数对改善顶煤预裂设计效果具有实际意义。
The experiments indicate that the control parameters of crack development induced by hydraulic fracturing have practical meaning for improving the effect of prefracturing design for hard top coal.
而动能增量可由量纲分析法推导的能反映裂缝扩展速度和加载率影响的计算公式表示。
Here, an approximate formula educed by dimensional analysis is presented, which involves fracture velocity and loading rate, to calculate kinetic energy increment.
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.
进行了切割裂隙进一步扩展的爆破模拟数值计算，验证了主药包对裂缝扩展所起的作用。
What has cut the crack and expanded further has blown up simulation number value to calculate, expand the function played on the crack after verifying the main powder bag.
本文讨论了一般边界条件下裂缝扩展的能量释放，指出了此时运用力势概念所能导致的错误。
This paper discusses the energy release of crack and cut in propagation under general boundary conditions and points out that the use of force potential can result in an error under these conditions.
首先，基于裂缝扩展规律，采用扩展有限元方法，利用模拟退火技术，建立裂缝扩展反演模拟模型；
This method established the fracture propagation inversion model firstly, based on law of fracture propagation and extended finite element method, by using annealing simulation method.
分别研究了钢筋混凝土桥梁在整体腐蚀和局部腐蚀同裂缝扩展的组合效应下截面刚度与服役时间关系。
The paper studies the relation between the section rigidity and the service time of the RC bridge under the composite effect of the expansion of cracks and the whole or local corrosion.
基于选定的路面力学模型，采用断裂力学中的疲劳裂缝扩展理论对路面反射裂缝的扩展规律进行分析。
Based on the pavement mechanics models, fatigue cracking theory of fracture mechanics was used to investigate the rule of reflection cracking.
从结构的非荷载效应着眼，通过对目前高层建筑砼结构中常见的裂逢成因分析，提出控制裂缝扩展的相应对策。
Based on the structural non load effect, the causes of common concrete structural crack in tall buildings are analysed. The control method of crack development is discussed.
井底压力与考虑三维裂缝扩展模型时的就地岩石力学参数模型的建立，使得就地岩石力学参数的评估结果更符合实际。
Bottom hole pressure and the models of considered 3d crack propagation model in situ rock mechanics parameters, have made the assessment of situ rock mechanics parameters more realistic.
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.
本文运用系统仿真的原理结合可靠度理论分别研究了钢筋混凝土桥梁在整体腐蚀和局部腐蚀及裂缝扩展组合效应下使用寿命及其可靠性。
Service-lifetime and reliability is estimated considering two models of uniform corrosion with effect of cracks and local corrosion on the theoretic of system simulation and reliability.
以神经网络为基本工具，利用其强大的非线性映射能力，并结合有限元法动力分析成果，为预测在复合射孔条件下岩层裂缝扩展深度提供了一条新的途径。
By using ANN and its powerful nonlinear mapping ability and combining production of FEM dynamic analysis, a new way to predicting terrane crack depth of complex fire hole is offered.
在新老混凝土粘结面断裂性能试验的基础上，建立了新老混凝土粘结面断裂破坏模式，分析讨论了界面层特性及界面微裂缝扩展对新老混凝土粘结面断裂性能的影响。
Based on the adhesive fracture test results of new and old concrete of the authors, a toughness model of adhesive interface of new and old concrete is put forward.
我们可以通过他头骨骨折方向精确判定受伤顺序：当骨头断裂时时，裂缝总是向薄弱之处扩展。
The precise order can be worked out from the direction of fractures on his skull: when bone breaks, the cracks veer towards existing areas of weakness.
多级脉冲气体松弛岩层地应力压裂地层的过程中裂缝内爆燃气体压力分布影响裂缝起裂扩展。
Multistage pulse gas is flabby in the process of layer of terrane crustal stress fracture deflagrate inside break aeriform pressure is cracked since distributinging influence break patulous.
将导电涂膜应用于混凝土试块的抗压试验，结果发现导电涂膜在快速加、卸载条件下对混凝土微裂缝的出现及扩展相当敏感。
The conductive coat has been applied on concrete test blocks during the compression test, the data shows that the conductive coat is rather sensitive to formation and extension of tiny cracks.
为了对钢筋混凝土结构的耐久性全寿命进行评估，研究了保护层混凝土锈胀裂缝的扩展及过程。
To evaluate the full-span durability life of reinforced concrete structure, the expanding process of corrosive crack in protective layer concrete is studied in this paper.
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.
结果表明，坝基的破坏主要表现为坝踵裂缝的延伸和坝趾附近基岩剪切屈服区的扩展。
The results show that the failure of dam foundation is caused mainly by the extension of dam heel crack and the expansion of shear-yield zone of the foundation rock near the dam toe.
笔者在介绍反射裂缝概念基础上，简要叙述了反射裂缝形成机理及扩展规律的几种理论。
The author introduces the conception of reflection crack, on this basis briefly narrates the mechanism of reflection crack forming and its extension law.
混凝土断裂能G _ F是材料的一个基本性能，表示扩展单位裂缝面所需要的能量。
The fracture energy GF of concrete is one basic material characteristic, representing the energy necessary to create a unit area of fracture surface.
混凝土断裂能G _ F是材料的一个基本性能，表示扩展单位裂缝面所需要的能量。
The fracture energy GF of concrete is one basic material characteristic, representing the energy necessary to create a unit area of fracture surface.
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