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China’s southwest border, southwest of Qinghai-Tibet Plateau in Tibet, located at latitude 26°50 ’~ 30°53’ and longitude 78°25 ’~ 99°06’ between the East and West about 2000km, north-south width 1000km. Size area of about 1.20×106km2, the country’s land area accounts for about 1 / 8, it is high-pitched the vast plateau of the atmospheric environment have a profound impact, forming a special plateau monsoon climate. The Tibetan Plateau is very uneven seasonal distribution of precipitation, the rainy and dry seasons were very obvious, the annual rainfall concentrated in the summer six months, the rainy and dry seasons are distinct. It is precisely because of the geological features of these special conditions and climate impacts, roads destroyed by floods and disasters, is very serious.The fundamental reason is that caused by damaged roads in Tibet along the river show a large number of cloth, while the river is the water damage caused by the special geological type of road under the water damaged the cause of harmful levels of differences, can be damaged roadbed washed damaged points, seepage water damage, backwater damaged, blocking ulcer 4 types of water damage.To further study the Tibetan mountains along the river highway roadbed, as well as along roads destroyed by floods and erosion mechanism of a reasonable protective form of the damaged point of this paper to investigate the typical observation, through the information could be summarized, theoretical analysis, laboratory testing method of combining, in conjunction with Tibet mountainous areas along the river road and rebuild the basic profile and main characteristics of mountain areas and rebuild the types, causes, climate, topography, hydrology, basic characteristics of the river and river morphology, river hydrology, analyzed data and calculations. Summed up the Tibetan mountains along the river embankment protection, the form and along the main road and rebuild Countermeasures.
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