2) grouting technology
注浆工艺
1.
Advanced small pipe grouting technology for tunnel construction;
隧道超前小导管注浆工艺探讨
2.
The following paper introduces the strengthening mechanism and effect of liquefied foundation treatment by compaction grouting method,illustrates its strengthening spheres and grouting technology,and discusses its suitability and treatment effect in the treatment of medium liquefied sand foundation, in order to popularize the application of the treatment method.
介绍了压密注浆法处理液化地基的加固机理及加固效果,对其加固范围和注浆工艺进行了详细阐述,并结合施工工程实践,论述了压密注浆加固处理中等液化砂土地基的适宜性和处理效果,以推广该处理方式的应用。
3.
Therefore reinforcement principles of karst roadbed are defined and the best grouting technology is developed for design and construction of the railway bed.
为此,施工和设计中确定了相应的岩溶路基加固原则,探索出最佳的注浆工艺,运用多种手段对注浆质量进行了全面检测,结果完全满足工程和环境的要求。
3) grouting technique
注浆工艺
1.
Also briefly discussed roadway borehole grouting techniques, as well as borehole water block up grouting process flow and parameters.
对矿井巷道钻孔注浆工艺进行了简要讨论。
2.
This paper introduces construction method of working pit and receiving pit,illustrates precast and hoisting of union coupling,proposes attentions of pipe jacking,discusses pipe jacking method and grouting technique after its construction,and illustrates surveying and control measures in the jacking.
介绍了工作井和接收井的施工方法,简述了管节的预制和吊装,提出了管道预进的注意事项,探讨了顶管顶进及施工结束后的注浆工艺,阐明了顶进中的测量、纠编控制措施。
4) grouting process
注浆工艺
1.
This paper deals with simply the design and construction of the grouting treatment project of coal-mining hollowed zone under Wulumuqi-Kuitun highway,and make profound analysis for some problems such asgrouting pressure,grouting process,additional agent and so on in design and construction,and put as ward some suggestions as reference for other similar projects.
简要论述乌鲁木齐—奎屯公路下煤层采空 区注浆治理工程的设计和施工 ,并对其中的一些问题 ,如注浆压力、注浆工艺、外加剂等作深入分析 ,并提出一些建议 ,以供类似工程参考。
5) TSS grouting technology
TSS注浆工艺
6) technology optimization
工艺优化
1.
Forming technology optimization of a multi-step part;
阶梯形壳体零件挤压工艺优化
2.
The technology optimization of CT-191 based on artificial neural network and genetic algorithm;
基于神经网络-遗传算法的CT-191合成工艺优化
3.
The technology optimization of continuous hot narrow strip rolling;
全连续式热轧窄带钢生产工艺优化
补充资料:轧制工艺优化
轧制工艺优化
optimization of rolling technology
zhazhi gongyi youhua轧制工艺优化(optimization of:olling ree卜nofogy)轧制工艺由顺序喇咧的若干工序组合而成。因此车啸{工艺优化,包括工序局部优化和流程整体优化。 工序局部优化影响因素比较单一、且以只调整局部工艺流程为手段的轧制工艺优化。例如初轧方坯鱼尾最短问题。初轧方坯时,由于钢坯高宽比大,钢坯表面层和中心层金属的延伸存在差异,钢坯头尾产生鱼尾,使金属收得率降低。影响初轧方坯端部形状的因素很多,如锭型、初轧机型式、孔型设计和压下规程等。通过观测钢坯端部的变形规律,先提出影响鱼尾长度的数学表达式,并由此出发,进一步制订出鱼尾最短的优化压下制度。 已知鱼尾长度与道次压下量的关系式为 了K,H、 △U~KI从19【资于} --一一叭从/式中△U为鱼尾长度;K,,K:为形状系数;从为压下量;H为原料厚度。轧制方坯时,需要经常翻钢90“。当钢坯在两个方向轧制的的情况下,沿X轴压下时,鱼尾长度为 L; 队一U,一12;号丁+胡一‘一1,“,’一”式中U,为第i道次的鱼尾长度;及/二一l为第i道次的延伸系数。沿Y轴压下时 U,一U,一台+叨,,,一‘,2,一式中石/几一:为第j道次的延伸系数,二,一二3从;19{丛给卫} 一,一,一”一。、O六,)式中形状系数Kl、KZ、K3、K;随钢种、轧制条件(轧制温度、速度、孔型形状及润滑状况)的不同而变化。 在制订鱼尾最短优化压下规程时,既要使总轧制道次和成品尺寸保持不变,以保持相同的产量和质量水平,又应使钢坯的鱼尾最短,以提高金属收得率。显然,这是一个求无约束极小值问题。其优化算法是:首先根据钢坯的高宽比决定一个压下方向(沿X或Y轴方向),然后选用黄金分割法(0 .618法)计算出钢坯鱼尾最短时的压下量。 生产实践证明:按通常压下规程轧制,方坯鱼尾长度为106mm,而用最优压下规程生产方坯时,鱼尾只有nmm,金属收得率(按重量计)提高1.5%,同时,翻钢次数由5次减为4次,轧制效率也有所提高。 流程整体优化影响因素较多,且以调整整个工艺流程才能达到目的的轧制工艺优化。例如冷轧带钢纵向厚度偏差最小问题。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条