Lots of research and practice have proved that the cracking of segments would be inevitable , leading to accelerating the erosion and degeneration of the segments 摘要大量研究和实践证明，盾构隧道混凝土管片结构裂缝的出现是不可避免的，而裂缝的出现将迅速的加快其腐蚀、劣化过程。
And the effect of water pressure on concrete crack width is mainly studied ; concrete crack width of penstocks in three gorges hydropower station is predicted in the end 并重点研究了水头的变化对压力管道混凝土最大裂缝宽度的影响，最后对三峡电站压力管道混凝土结构裂缝进行了预测。
Ansys software is applied to simulate the crack of concrete beam in this paper , some helpful approach on applying ansys software in simulating the crack of concrete structures are given 本文还应用ansys软件对混凝土梁的裂缝进行了仿真模拟，对ansys软件应用到混凝土结构裂缝分析做出了有益的探讨。
During the technology development of modem concrete , concrete structure crack ( especially early - age crack ) becomes more and more serious and has been one of main research directions of civil engineering 随着现代混凝土技术的发展，混凝土结构裂缝呈现越来越严重的趋势，尤其是早期裂缝，已成为土木工程界一个重要研究方向。
Analyzing causes and prevention measures for crack in the concrete structure on the basis of carefully observing construction sites and studying papers and works on concrete is the key to improve construction quality 摘要通过多年的现场观察以及查阅有关砼方面的专著，分析砼结构裂缝产生的原因及防治措施是提高工程质量的关键。
Abstract : cracks in typical semi - rigid bituminous pavement structures are practically investigated and tested and the causes are analyzed . therefore , measures to reduce cracks on pavement structure are proposed 文摘:实地跟踪、检测广西有代表性的半刚性基层沥青路面的裂缝状况，分析了这类路面结构裂缝的成因，提出了减少路面结构裂缝的措施。
How to choose the suitable method to resolve the leakage of water in underground concrete structure is a very difficult problem to every civil engineer , for the cracks and leakage of water in underground concrete structure is hard to be avoided 摘要地下工程混凝土结构裂缝及渗漏水是难以避免的质量通病，如何选择合适的处理渗漏水方法是每个土木工程师都需面临的难题。
As a sub - topic of national natural science foundation named " cracking mechanism and a whole set of control technique of modern concrete structure " ( no : 50278031 ) , this paper roundly study crack controlling technique of cast - in - place slab with large - area 本文作为国家自然科学基金“现代混凝土结构裂缝机理及成套控制技术” (编号： 50278031 )的子题，全面系统地研究了大面积现浇楼盖结构裂缝控制技术。
Analyzed with pkpm the effect of connection columns on the hoist room structural cracks and the effect of temperature differences on hoist room structure in the structural design of huangtangjia power station , as well as the valuation of wind load in the design 摘要应用pkpm程序分析了黄塘甲水电站启闭机房结构设计中贯通柱对启闭机房结构裂缝的影响，温差效应对启闭机房结构的影响，并对风荷载取值进行分析。
The cast - in - place slab with large - area without special requirement can work with cracks , but the largest crack width must be less than that stipulated in the code of gb50010 - 2002 . hence , the control principle of cast - in - place slab with large - area is to limit the crack , that is , to control the width of crack in the allowable range as stipulated by the code 在规范gb50010 ? 2002中规定无特殊使用和工艺要求的大面积现浇楼盖结构允许带裂缝工作，因此，大面积现浇楼盖结构裂缝控制的原则是限裂，即限制裂缝开展宽度在规范规定的允许最大裂缝宽度范围内。
