Application of Mechanized Pipe Pushing Technologies in Sand Soil 机械化顶管工艺在砂土中的应用
The main mechanized dryland farming technologies which are put into effect in Hebei Province include such technologies as mechanized mulching planting, tillage preserving the moisture of the soil, mechanized returning application of straw and mechanized water saving irrigation. 分析了河北省旱作农业现状。根据全省旱地生态环境的不同,所实施的机械化旱作农业技术包括机械化覆盖种植技术、耕作蓄水保墒技术、机械化秸秆还田技术和机械化节水灌溉技术。
Finally, Virtual Reality system of Fully Mechanized Coalface is constructed and the critical technologies are applies in the real scenes to demonstrate its validity. 最后构建综采工作面虚拟现实系统,在主要场景实现中对所提出的关键技术做了实际的应用,从而验证了关键技术的有效性。
The paper introduced the widely applied high production high efficient completed technologies and equipments for the single seam conventional full mechanized coal mining and fully mechanized slice coal mining, thick seam fully mechanized high mining and fully mechanized caving, as well as the related auxiliary technologies. 主要介绍我国煤矿中已经广泛采用的单一煤层普通综采和分层综采、厚煤层大采高综采和放顶煤综采高产高效成套技术装备以及相关的辅助配套技术。
This paper summarizes a set of mechanized maintenance schemes of expressway, including proper selection of maintenance equipments, construction technologies, and etc. 针对近年来高速公路的路面养护工程日益增大,总结了一套高速公路机械化养护施工的方案,包括养护设备合理选型以及路面养护施工工艺,对高速公路的养护工作具有一定的参考价值。