| 1. | This immense chasm has been formed by an underground stream which has tunneled a course through a flaw in the rocks .
这个巨大的陷穴是由一条地下小河穿过岩石裂缝形成的。 |
| 2. | Non - linear description of cracking mechanism and wrecking conditions of cement concrete pavement
水泥路面裂缝形成机制及破坏条件的非线性描述 |
| 3. | Traffic load and temperature load are two main factors accounting for its formation and propagation
交通荷载和温度荷载是导致反射裂缝形成和扩展的主要因素。 |
| 4. | Vitreous and porcelain enamels - determination of crack formation temperature in the thermal shock testing of enamels for the chemical industry
釉瓷和搪瓷.化学工业用瓷釉的热冲击试验中裂缝形成温度的测定 |
| 5. | In addition , the attitudes of conjunctive fractures deduced from the borehole images provide important information for the direction of paleo - structural stress field
利用从电成像测井图像上提取的共轭裂缝的产状信息，还可以恢复裂缝形成时古构造应力场的方向。 |
| 6. | Based on the detailed investigation , the distribution of cracks in capping beam of the abutment of huaihe river bridge on the national road 107 is presented , the causes leading to the cracks are thoroughly analyzed , and the construction scheme and methods for remedy of the cracks in the abutment are described as well
摘要在详细调查的基础上，介绍了107国道槐河大桥桥台盖梁裂缝的分布情况，深入分析了裂缝形成原因，并阐述了该桥的加固方案和施工方法。 |
| 7. | Meanwhile , the factors causing fissures in the pavement fall into three layers from down to up , namely , the bottom layer of the pavement slab - the formation and fissures & breakage of the transition layer between the pavement and base interface makes the chief reason for the formation of initial cracks and later fissures ; the middle layer - the pavement plate
同时，将路面开裂的影响因素由下而上分为三个不同的层面，即：路面板底层? ?路面与基层界面之间过渡层的形成及其开裂，是导致初始裂缝形成和影响后期开裂的根本原因；中间层? ?路面板体。 |
| 8. | According to thorough research on mechanical mechanism of 3 - d tensional micro - fracture producing , this point is put forward the first time that : there is more stress concentration in the circumference of micro - cracks . and the cracks are easier to expand and to link with each other when the fissures contained saturated pore fluid than dry state . therefore , it is necessary to modify the griffith criteria
4深入研究了三维张性微裂缝形成的力学机理，首次指出：在裂隙内饱含孔隙水的情况下，微裂缝周边的应力集中程度更高，裂缝更容易扩展乃至连通，因此，在张裂缝发育的研究中应该对格里菲斯准则进行修正。 |
| 9. | Cracking of asphalt concrete pavement with semi - rigid base course is influenced by many complex factors . this thesis applies neural net ' s theory and three - dimension dynamic technique of simulation to research . the author develops emulator system of crack ' s forming , and that draws up corresponding emulator program
半刚性基层沥青混凝土路面的开裂受许多复杂因素的影响，本论文将人工神经网络理论与三维动态仿真方法引入研究中，开发出裂缝形成的仿真模拟系统，编制出相应的仿真模拟程序。 |
| 10. | Therefore , the present paper , based on the existing achievements as well as an extensive study & investigation in combination with part of the achievements the author has derived by hosting or participating in the research programs of the cement concrete pavement , has led to three phases of fissures and breaking in the pavement slab on the condition that each performance of the subgrade is maintained , i . e . stages of formation in initial cracks , of accumulation & expansion in ruptures and of fissures & breakage in the pavement
为此，本文在已有研究成果的基础上通过广泛调研，结合作者近几年来主持或参加的有关水泥混凝土路面研究课题的部分成果，在路面基层的各种性能得到保障的前提下，通过理论研究和试验研究，得出路面板的开裂破坏过程分为三个阶段，即初始裂缝形成阶段、裂缝累积和扩展阶段以及路面断裂破坏阶段。 |
