Theoretical Study on Vertical Earth Pressure Calculation for Positive-Busied Culverts under High Embank

Abstract:

High embank culverts have been widely used in railway, highway, municipal works, and other underground engineering. The vertical earth pressure on the culvert top is a key to design culvert structure correctly and guarantee it safety. Comparing three typical earth pressure theories, combined previous studies of experiment and numerical calculation, acted effect on high embank is analysis. Unstable soil arch effect and additional stress causing by differential settlement are presented. The two acted effect play a main role separately in different fill height. So, two-stage earth pressure calculation formula is given with a h₀ limit fill height. The studies can give some reference to high embank culvert structure design.

• Periodical: Applied Mechanics and Materials (Volumes 368-370)
• Pages: 1826-1829
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.368-370.1826
• Online since: August 2013
• Authors: He Fan, Ying Wang, Bao Kuan Ning
• Keywords: Additional Stress Theory, Culvert under High Embank, Earth Arch Effect, Earth Pressure Calculation Theory

References

[1] X.W. Yang. Earth pressure calculated method and structural design of culverts with thick backfills on roadways in mountainous regions [M]. Beijing, (2006).

[2] X. S. She, A. Q. Gu. Study of the earth pressure on conduit under the deeper earth[J]. Journal of xi'an university of highway. Vol 12 (1992) 27-33.

[3] B. Jiang. Studies on soil arching effect and earth pressure for retaining structure [D]. Zhejiang University. (2005).

[4] H. Fan, B. Liu, et al. Model test with similar material and numerical simulation of culvert with high fill. Journal of Jilin University. Vol 38(2008) 399-403.