Freeway planting plays an important role during freeway construction since it will lead to the permanent change of land utilization and dramatic decline of vegetation coverage. Quadrate sampling method was used to predict the impact of freeway construction on vegetation and compensation effect of forestation as a case study of freeway construction in Mianyang- Suining freeway construction. According to the existing problem,vegetation recovery and compensation were proposed.

针对综掘工作面除尘器除尘效率不高的现状,利用控尘装置改变迎头处风流分布状况,以提高系统除尘效率.对涡流控尘装置的涡流强度、风流分布均匀系数等主要参数进行了详细分析,得到了较优的结果.通过对现场应用证明,涡流控尘装置的使用提高了系统的除尘效率,改善了作业面环境.

To improve the efficiency of collecting dust system,it quotes the swirl control technology.It analysises the relationship among the swirl,the distance from head-on,the pressure pumping,and the efficiency of dust control;Through a series of tests,it proves that the technology can effectively prevent the spread of dust,so the effect of collecting dust collector get better result.

介绍了采煤机高压外喷雾系统和粉尘在线监测系统的工作原理、系统组成及在开元公司15102工作面的安装布置情况,通过对降尘系统效果监测和分析,降尘效率达84.1%,效果明显,改善了作业场所的劳动卫生环境.

针对马兰矿18106综采工作面的产尘情况,在预先湿润煤体的前提下,采用采煤机高压喷雾、支架移架自动喷雾及粉尘浓度在线监控和智能喷雾等综合防尘技术,对工作面产尘的主要工序和关键区域进行控制。现场测尘结果表明降尘效果显著。