BZK-G高强灌浆料抗冲磨补强加固技术

Reinforcement Technique by Using BZK-G High Strength Grouting Material to Resist Abrasion

针对头屯河水库涵洞底板磨损问题,根据涵洞水沙运行特点和已往采用的抗冲磨措施及材料使用经验,采用了GHJ高强植筋胶对直径16 mm二级钢筋进行植筋锚固,以纵横间距20 cm×20 cm、直径12 mm二级钢筋单层筋钢筋网作为骨架,通过植筋把钢筋网与基底层连接成一个整体,然后采取BZK-G高强灌浆料灌注的施工工艺和主要施工方法及技术措施,对涵洞底板冲失面积7.5 m2的部位进行了平均厚10 cm的补强加固。通过2 a运行实践检验,该技术的应用对涵洞底板的抗冲磨处理起到了一定的效果,补强加固部位整体完好无损。

To solve the problem of culvert＇ s bottom plate abrasion in Toutun river reservoir, reinforcement with an average thickness of 10cm was applied at places where the washout area reached 7.5m2 on the bottom plate. Ac- cording to the features of water and sediment in the culvert and the previous measures and experiences, GHJ plant- ing-bar anchorage glue of high strength was used for the anchorage of rebars of 16mm diameter. Through the bonded anchorage, single-layer reinforcement mesh with vertical and horizontal spacing （20cm × 20cm） between rebars of 12mm diameter was integrated with the basal layer as a whole, and then BZK-G grouting material was used for the grouting reinforcement. Two years of practice proved that this technique has good effect on the anti-abrasion of cul- vert bottom.