您要查找的是不是:
- concrete under mine 井下混凝土
- Main problems existing in location communication systems under mine (LCSM) are analyzed. 摘要分析了矿井下定位通信系统存在的主要问题,提出一种新的跳频序列;
- The experimental result of imperviousness of asphalt concrete under various load levels is presented in this paper. 本试验侧重于沥青混凝土的防渗性能研究。
- Wedging his tense arm imperatively under mine, Tom Buchanan compelled me from the room as though he were moving a checker to another square. 汤姆 - 布坎农不由分说就把一只紧张的胳臂插在我的胳臂下面,把我从屋子里推出去,仿佛他是在把一个棋子推到棋盘上另一格去似的。
- This paper studied the fatigue properties of the plain concrete under constant amplitude flexural cyclic loading. 在室内混凝土试件弯曲疲劳试验的基础上,研究了素混凝土受弯试件在等幅重复荷载作用下的弯曲疲劳性能。
- The different influences of the capillary radius to the permeating speed and depth of concrete under different water pressure were investigated. 重点探讨在不同水压力作用下,毛细孔半径对混凝土渗透速率和渗透深度的不同影响。
- A new failure criterion and elastic\|plastic constitutive relation for concrete under biaxial stresses is discussed in this paper. 讨论了混凝土在双向应力作用下的破坏准则和弹塑性本构关系。
- I during my master’ degree study, have done some research on properties of metakaolin concrete under wetting and drying cycle conditions. 在硕士学习期间,我做了些干湿循环环境对偏高领土混凝土性能影响的研究。
- The test result of change laws of weight indicates that, to the ordinary concrete under sulfate attack, the rate of change is quickly. 各种混凝土的质量变化规律表明,对于普通混凝土,其受到侵蚀后质量变化幅度较大,前期增长快,后期衰减也快,但在试验周期内较初始质量没有损失;
- In view of the anisotropic damage characteristics of concrete under multiaxial stress state, an anisotropic elastoplastic damage model is presented. 针对混凝土多轴应力状态下各向异性损伤的特点,建立了各向异性弹塑性损伤模型。
- The stochastic damage constitutional law models of concrete under uniaxial tension, uniaxial compression and biaxial tension compression combination are established. 建立了混凝土单轴受拉、轴受压与双轴拉压组合条件下的随机损伤本构关系模型.
- Meyer Ottens C.Zur Frage der Abplatzungen an Bauteilenbei Brandbeaspruchung(Spalling of Structural Concrete Under Fire),Deutscher uss ue Stahlbeton,1975(248). 袁杰.;火灾后高强混凝土结构的剩余抗力研究[D]
- Summarization of structure design and construction of prestressed concrete under ground continuous wall rectangular pumping house are introduced in this paper. 结合工程实例,对预应力地下连续墙矩形泵房的结构设计、施工实践进行了总结。
- In this paper, the effect of mineral powder and W/B ratio on the charge passed with mortar and concrete under 56 day and 90 day s standard curing age is investigated. 研究了不同水胶比、不同矿物质粉体掺量的砂浆和混凝土,经标准养护至56天、90天时的导电量。
- In the local or global movement of rock mass under mining,overlying strata play a key role. 上覆岩层对采动岩体活动全部或局部起决定性作用,上覆岩层运动是一个复杂的时空过程,具有时效性。
- Based on the continuum damage mechanics, an anisotropic elasto-damage model for predicting the residual strength of concrete under tension fatigue loading is presented. 基于连续体损伤力学理论,建立了各向异性混凝土抗拉疲劳剩余强度衰减模型。
- Based on the 21 specimen of AFRP concrete under different temperature,an test was designed and conducted to investigate the effect of temperature on the shear bond strength. 用21个试件,测定了芳纶复合材料(AFRP)与混凝土之间的抗剪粘结强度,通过改变温度,研究了温度对AFRP与混凝土间抗剪切粘结强度的影响。
- Transform of main fan diffuser under mine 矿井主扇扩散器的改造
- On the Specify Columns'Content and Data Type page, under Mining model structure, you can adjust the content type and data type for each column. 在“指定列的内容和数据类型”页中的“挖掘模型结构”下,可以针对每个列调整内容类型和数据类型。
- With changing the amount of rice hull powder to test the compressive strength?rupture strength and impermeability of C30 concrete under standard condition. 为分析稻壳粉对C30混凝土性能的影响,通过改变掺入稻壳粉的掺量测定了标准养护条件下C30混凝土的抗压强度、抗折强度、抗冻性能及抗渗性能。