### Abstract

Bank erosion consists of two processes: basal erosion due to fluvial hydraulic force and bank failure under the influence of gravity. Because bank resistance force varies with the degree of saturation of bank material, the probability of bank failure is the probability of the driving force of bank failure being greater than the bank resistance force. The degree of saturation of bank material increases with river stage; therefore, the frequency of bank failure is correlated to the frequency of flooding. Consequently, the rate of bank erosion is due to both basal erosion and bank failure, and bank failure is a probabilistic phenomenon. In this paper, for cohesive bank material experiencing planar bank failure, a deterministic approach was adopted for basal erosion analysis, whereas the probability of bank failure was included in the analysis of bank failure. A method for calculating the rate of bank erosion was derived that integrates both basal erosion and bank failure processes, and accounts for the effects of hydraulic force, bank geometry, bank material properties, and probability of bank failure. Journal of Hydraulic Engineering

Original language | English (US) |
---|---|

Pages (from-to) | 980-990 |

Number of pages | 11 |

Journal | Journal of Hydraulic Engineering |

Volume | 131 |

Issue number | 11 |

DOIs | |

State | Published - Nov 2005 |

Externally published | Yes |

### Fingerprint

### Keywords

- Bank erosion
- Channel stabilization
- Computation
- Failures

### ASJC Scopus subject areas

- Water Science and Technology
- Civil and Structural Engineering
- Mechanical Engineering

### Cite this

**Analytical approach to calculate rate of bank erosion.** / Duan, Guohong.

Research output: Contribution to journal › Article

*Journal of Hydraulic Engineering*, vol. 131, no. 11, pp. 980-990. https://doi.org/10.1061/(ASCE)0733-9429(2005)131:11(980)

}

TY - JOUR

T1 - Analytical approach to calculate rate of bank erosion

AU - Duan, Guohong

PY - 2005/11

Y1 - 2005/11

N2 - Bank erosion consists of two processes: basal erosion due to fluvial hydraulic force and bank failure under the influence of gravity. Because bank resistance force varies with the degree of saturation of bank material, the probability of bank failure is the probability of the driving force of bank failure being greater than the bank resistance force. The degree of saturation of bank material increases with river stage; therefore, the frequency of bank failure is correlated to the frequency of flooding. Consequently, the rate of bank erosion is due to both basal erosion and bank failure, and bank failure is a probabilistic phenomenon. In this paper, for cohesive bank material experiencing planar bank failure, a deterministic approach was adopted for basal erosion analysis, whereas the probability of bank failure was included in the analysis of bank failure. A method for calculating the rate of bank erosion was derived that integrates both basal erosion and bank failure processes, and accounts for the effects of hydraulic force, bank geometry, bank material properties, and probability of bank failure. Journal of Hydraulic Engineering

AB - Bank erosion consists of two processes: basal erosion due to fluvial hydraulic force and bank failure under the influence of gravity. Because bank resistance force varies with the degree of saturation of bank material, the probability of bank failure is the probability of the driving force of bank failure being greater than the bank resistance force. The degree of saturation of bank material increases with river stage; therefore, the frequency of bank failure is correlated to the frequency of flooding. Consequently, the rate of bank erosion is due to both basal erosion and bank failure, and bank failure is a probabilistic phenomenon. In this paper, for cohesive bank material experiencing planar bank failure, a deterministic approach was adopted for basal erosion analysis, whereas the probability of bank failure was included in the analysis of bank failure. A method for calculating the rate of bank erosion was derived that integrates both basal erosion and bank failure processes, and accounts for the effects of hydraulic force, bank geometry, bank material properties, and probability of bank failure. Journal of Hydraulic Engineering

KW - Bank erosion

KW - Channel stabilization

KW - Computation

KW - Failures

UR - http://www.scopus.com/inward/record.url?scp=27644574090&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=27644574090&partnerID=8YFLogxK

U2 - 10.1061/(ASCE)0733-9429(2005)131:11(980)

DO - 10.1061/(ASCE)0733-9429(2005)131:11(980)

M3 - Article

AN - SCOPUS:27644574090

VL - 131

SP - 980

EP - 990

JO - Journal of Hydraulic Engineering

JF - Journal of Hydraulic Engineering

SN - 0733-9429

IS - 11

ER -