This paper present the problem of manual release equipment of mechanical brake units which exist in double energy battery electric locomotive.It emphasis on the design project,structure and characteristic of the manual release rope equipment.And then the pull of manual release is calculated.

In order to meet the characteristics of a small installation space of foundation brake for dual -source electric locomotive ,a new compact tread brake unit is presented in this paper .The paper introduces the structure ,working principle and technical parameter of the tread brake unit ,which focuses on the principle of the slack adjuster .According to the calculation of the emergency braking dis-tance and park brake force ,it is verified that the tread brake unit can meet the braking requirements of the electric locomotive .

工程质量是建筑企业之重点,而在施工过程中如何保证工程质量问题呢,文章叙述了超深挖孔桩的准备工作,并对如何控制施工质量以及施工过程中安全控制等问题进行了分析与阐述。

根据具体工程项目对屋面防水保温一体化施工优势进行了阐述,并对防水保温材料,施工工艺,施工条件进行了分析,同时强调了目前防水保温一体化的重要性。