Abstract：The Lizigou long bridge is a dominant engineering of the Neijiang-Kunming railway， and the stability of high and steep slope of No. 11 pier in the bridge is a misgiving problem. With the observation and analysis to the morphostructure，the river valley shape and the correlative sediments of Lizigou area， it is considered that the step-spur on the back of No. 11 pier slope is a high terrace of Lizigou river，which is not a unfavorable geological accumulation form and is stable as a whole-During digging slope of the No-11 pier， the influence of engineeing activity is only on surface， and the whole stability of the slope is not shaken. Therefore， the design plan of reinforcing the slope is feasible.
蒋忠信，张钧. 内昆铁路李子沟河谷地貌与谷坡稳定性[J]. 铁道工程学报, 2000, 17(4): 86-89.
JIANG Zhong-xin，ZHANG Jun. VALLEY MORPHOLOGY AND VALLEY SIDE STABILITY OF LIZIGOU RIVER IN NEIJIANG-KUNMING RAILWAY. Journal of Railway Engineering Society, 2000, 17(4): 86-89.
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2000, Vol. 17 
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