Phân tích khả năng mất ổn định đường bờ sông Tiền qua huyện Cái Bè, tỉnh Tiền Giang

Abstract

: The bank of Tien River in Cai Be district, Tien Giang province has stratigraphic characteristics including soft soils with different compositions, along with the complex river's flow regime, causing bank instability. The article refers to the analysis of the possibility of instability of the Tien river bank line through Cai Be district, Tien Giang province. Using numerical methods of GEO -SLOPE software, simulating the shoreline and impact factors, proposing two steps of analysis in the natural state and analysis of the eroded shore with different areas (18 m 2 , 18+20 m 2 , 18+20+25 m 2 and 18+20+25+25 m 2 ), the research results shows that the stability coefficient is clearly reduced as the erosion area increases, destabilizing the bank of river and decreases from 1.070 to 0.896. Thus, it can be seen that in the natural state, the shoreline has a low stability coefficient and if the bank river eroded, the shoreline becomes unstable.