Coastal engineering

Herbich, John B.; Haney, John P.

doi:10.1007/0-387-30843-1_111

Cited by 5 publications

(7 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Proper design for sloping revetments requires an understanding of the three modes of instability: uplift, sliding, and toe roll-up, which are summarized by McDonnell (1998), Pilarczyk (1998), and Herbich (1999). A field prototype-scale investigation was conducted in coastal Louisiana to assess the performance of ACRs in resisting a range of wave loading conditions (Russo, 2003).…”

Section: Introductionmentioning

confidence: 99%

“…Tests of prior works summarized by Herbich (1999), which were conducted through traditional methods that involve structure displacement and/or damage under wave loadings, were generally able to measure structure performance between 3.7 and 8 of the ratio of destabilizing-to-restoring forces. For observations that were near a value of 3.7, the ACR experienced onset of damage (e.g., armor unit permanent dislocation or breakage).…”

Section: Introductionmentioning

confidence: 99%

“…For values near 8, structures experienced catastrophic unraveling. Despite being the best available physical data measurable to-date, Herbich (1999) characterized structure performance for design as being highly uncertain in this range of response under specified wave forcings. Additionally, there is no explicit, quantitative correspondence in ACR performance under wave loadings between the USACE (2006) "no damage" criteria and the summary of tests by Herbich (1999) on the ratio of destabilizing-torestoring forces.…”

Section: Introductionmentioning

confidence: 99%

“…Using an ACR stability limit that maintains structural integrity would greatly reduce the potential of repeat damage resulting in armor failure. A design challenge exists due to a knowledge gap in detecting and analyzing ACR performance between the thresholds of incipient motion and initial damage (Herbich, 1999). In this research, the threshold of incipient motion for ACRs is explored through small-scale experimentation.…”

mentioning

confidence: 99%

“…Conventional erosion-abating armor may impose loadings that induce subsidence of earthen levees and underlying foundation soils, presenting a challenge in maintaining required design crown elevations of flood risk management systems. A new approach using continuously-connected, articulated coastal revetment (ACR) systems may have potential to resist wave attack while being significantly lighter than traditional designs.Proper design for sloping revetments requires an understanding of the three modes of instability: uplift, sliding, and toe roll-up, which are summarized by McDonnell (1998), Pilarczyk (1998), andHerbich (1999). A field prototype-scale investigation was conducted in coastal Louisiana to assess the performance of ACRs in resisting a range of wave loading conditions (Russo, 2003).…”

mentioning

confidence: 99%

See 4 more Smart Citations

Incipient Motion Response Detection of Articulated Coastal Revetment Under Wave Loading

Russo

Willson

Smith

2011

Int. Conf. Coastal. Eng.

View full text Add to dashboard Cite

Articulated coastal revetments (ACRs) are armoring options for abating earthen levee wave erosion. Stability criteria for ACR design typically allow initial, minor damage during design wave loading conditions (USACE, 2006). Minor wave damages may worsen progressively if not repaired before another design wave loading event. If minor ACR damages evolve under wave action to the point of unraveling, the underlying levee will become exposed to wave forces that could result in breaching (Pilarczyk, 1998). Vulnerability exists in this scenario for catastrophic flood risk management system failure. Current ACR stability limits for maintaining structural integrity under wave attack exist between the thresholds of structure incipient motion and that of initial damage criteria. Using an ACR stability limit that maintains structural integrity would greatly reduce the potential of repeat damage resulting in armor failure. A design challenge exists due to a knowledge gap in detecting and analyzing ACR performance between the thresholds of incipient motion and initial damage (Herbich, 1999). In this research, the threshold of incipient motion for ACRs is explored through small-scale experimentation. Data analysis, including correlations between hydrodynamic forcings and structure responses, extended our understanding of ACR system behavior in specific structural configurations and wave loading conditions. Keywords: incipient motion; articulated coastal revetment; wave loading INTRODUCTIONPilarczyk (1998) explains that wave action impacts have the potential to result in soil erosion on the seaward faces and crown of exposed earthen dike (i.e., levee) structures. Figure 1 illustrates the effect of near shore seaward slope wave breaking and run up on a vegetated earthen levee in the vicinity of Eastern New Orleans, Louisiana, USA, which caused stripping of the vegetation layer and embankment soil loss during Hurricane Gustav in 2008 (USACE, 2008). Conventional erosion-abating armor may impose loadings that induce subsidence of earthen levees and underlying foundation soils, presenting a challenge in maintaining required design crown elevations of flood risk management systems. A new approach using continuously-connected, articulated coastal revetment (ACR) systems may have potential to resist wave attack while being significantly lighter than traditional designs.Proper design for sloping revetments requires an understanding of the three modes of instability: uplift, sliding, and toe roll-up, which are summarized by McDonnell (1998), Pilarczyk (1998), andHerbich (1999). A field prototype-scale investigation was conducted in coastal Louisiana to assess the performance of ACRs in resisting a range of wave loading conditions (Russo, 2003). Previous work and this experiment demonstrated an increased need for understanding the processes leading to the incipient motion of ACR systems and translating this to the development of suitable design procedures. Design procedures should include:• optimizing armor dimensions to resiliently resis...

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Incipient Motion Response Detection of Articulated Coastal Revetment Under Wave Loading

Russo

Willson

Smith

2011

Int. Conf. Coastal. Eng.

View full text Add to dashboard Cite

show abstract

Bores

Mosetti¹

1982

Beaches and Coastal Geology

View full text Add to dashboard Cite

Quantitative delimitation of radiant belt toward lake of lake-terrestrial ecotone

Cai

et al. 2022

Environ Sci Eur

View full text Add to dashboard Cite

Background Lake-terrestrial ecotone is a transition zone between terrestrial and aquatic ecosystems. Linking land and lake, it is thus highly sensitive and vulnerable to disturbances. It includes three parts, namely, radiant belt toward land, shoreline zone and radiant belt toward lake. Extending from multi-year average low water level line to open water, radiant belt toward lake is a key part of lake-terrestrial ecotone. However, the delimitation method for radiant belt toward is unsolved, which is a big obstacle to protecting lake-terrestrial ecotone effectively. Wave is a major hydrodynamic factor in lakes, especially large shallow lakes. For linking landward and waterward directions, the boundary of radiant belt toward lake may be affected by waves. Hence, exampled as Lake Taihu, this research was carried out from wave perspective. Results In July 2021, a total of 12 species aquatic macrophyte were collected, including 3 species of floating-leaved and 9 submerged macrophyte within radiant belt toward lake of Lake Taihu. Aquatic macrophyte were incorporated into calibrated wave models driven by constant winds via MIKE21 SW. Wave height attenuation was successfully simulated, ranging − 0.19% ~ 8.89% under eastern-wind condition and − 0.08% ~ 23.37% under western-wind condition. In general, wave height gradually attenuates from shore to water. The abrupt change point in relative wave height was used as the boundary of the radiant belt toward lake. A total of 26 sampling lines from bank to water around the whole lake of Lake Taihu were set, ranging 701 ~ 2155 m. Based on the setups of sampling lines, the delimitation range of Lake Taihu is about 1 ~ 2 km. Conclusions A novel approach was developed for quantitative delimitation of radiant belt toward lake. Both wind forcing and aquatic vegetation has slight impact on results of delimitation, indicating the feasibility of this approach. It determines a theoretical boundary of lake-terrestrial ecotone, which is helpful to a more precise protection and restoration of large shallow lakes. Moreover, it could provide a potential method for quantitative delimitation for large shallow lakes with similar conditions.

show abstract

Coastal engineering

Cited by 5 publications

References 1 publication

Incipient Motion Response Detection of Articulated Coastal Revetment Under Wave Loading

Incipient Motion Response Detection of Articulated Coastal Revetment Under Wave Loading

Bores

Quantitative delimitation of radiant belt toward lake of lake-terrestrial ecotone

Contact Info

Product

Resources

About