根河林业局森铁处,承担着全局20多万立方米的木材运输任务,占全局木材运输任务量的50％。全局的森铁干、支、岔线总长290公里。按线路技术规程要求,枕木的使用年限为5～7年。这个处每年需对41～58公里的枕木进行更换,要使用3000立方米优质木材。为了节省木材,减少森林资源的消耗,去年就着手做了用水泥枕木更换木枕木的准备工作。根据自己的财力人力的状况,采用逐年更换的办法.去 Sen River Forest Bureau Forest Iron Office, bear the overall situation of more than 20 million cubic meters of timber transportation tasks, accounting for 50% of the total timber transportation tasks. Sen Mori global dry, branch, fork length 290 km. According to the requirements of line technical regulations, the service life of sleepers is 5 to 7 years. The area needs 41 to 58 kilometers of sleepers to be replaced every year, and 3,000 cubic meters of high-quality timber is to be used. In order to save wood and reduce the consumption of forest resources, preparations were made last year to replace wooden sleepers with cement sleepers. According to their own financial and human resources, the use of a year-by-year replacement