特殊地质条件下公路边坡防护技术

Highway slope protection technology under special geological conditions

为改善煤矸石边坡的植被生长环境,提高边坡抗冲刷能力,对强风化煤矸石采用微生物和固化处理方式进行改良。结果显示:采用复合微生物菌液+纯丙乳液固化剂的改善效果明显优于复合微生物菌液+苯丙乳液固化剂,相比原状边坡,植被长势情况得到明显改善,边坡抗冲刷能力提升50%以上;高分子固化剂配制过程中需掺入一定量的消泡剂和成膜助剂;在挂网施工结束后需要对坡面多次补喷高分子固化剂,才能使边坡施工防护效果达到最佳。

In order to improve the vegetation growth environment of coal gangue slope and improve the anti scouring ability of slope, the strongly weathered coal gangue is improved by microbial and solidification treatment. The results showed that the improvement effect was obvious when the compound microbial solution + pure acrylic lotion curing agent was used. Compared with the undisturbed slope, the vegetation growth was significantly improved and the anti scouring ability of the slope was increased by more than 50%.A certain amount of defoamer and film-forming additives should be added in the preparation of polymer curing agent.After the net hanging construction, it is necessary to spray polymer curing agent on the slope for many times, so as to achieve the best protection effect of slope construction.