热镀锌波纹涵管山东波纹涵管生产加工制造商整装衡水管

en热镀锌波纹涵管山东波纹涵管生产加工制造商整装衡水管gineering in permafrost areas. A热镀锌波纹涵管山东波纹涵管生产加工制造商整装衡水管fter economic analysis, the cost of each corrugated Guanhan project is about 60 % of the same aperture of the reinforced concrete cover culvert. The application practice of the Qinghai-Tibet Highway and the foreign permafrost region metal corrugated Guanhan shows that during the use of the roadbed, the metal corrugated Guanhan basically did not appear freeze-thaw fatigue and excessive deformation damage phenomenon.
Metal corrugated Guanhan has the advantages of light weight, convenient transportation, simple construction, short construction period and good deformation resistance. It is more suitable than reinforced concrete cover culverts for cold area projects such as the China-Nepal Highway. At present, the application of Guanhan in