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Net buffer method for suppressing internal erosion and collapse behind seawalls and quaywalls through caisson joint wave reduction
https://orcid.org/0000-0002-0269-200X
Abstract This paper presents a new wave reduction method, called the Net Buffer Method, to reduce caisson joint waves for suppressing internal erosion and collapse behind seawalls and quaywalls. Caisson joints may fail or widen due to the repeated action of waves that pass though the joints. The new method, in which a net fiber material is installed within the joints, is capable of reducing such caisson joint waves by more than 80% in terms of the maximum and average wave pressures. Unlike previous countermeasures, it is applicable to joints of variable width and can autonomically adjust to changes in the configuration and surrounding environment due to continued wave impacts and other dynamic forcing such as earthquakes. Based on a three-year follow-up survey of its application, the proposed method has proven itself effective in suppressing the occurrence of re-collapse behind seawalls that repeatedly collapsed under severer wave loading.
Highlights A new method to suppress internal erosion and collapse behind seawalls and quaywalls is presented. Consistent reduction of waves that pass through caisson joints by more than 80% under severe wave impacts. The method is applicable to new, existing and aging caisson structures. The validity has been confirmed at Major and Strategic International Ports in Japan. The proposed method can contribute to a sustainable management of caisson-type seawalls and quaywalls worldwide.
Net buffer method for suppressing internal erosion and collapse behind seawalls and quaywalls through caisson joint wave reduction
https://orcid.org/0000-0002-0269-200X
Abstract This paper presents a new wave reduction method, called the Net Buffer Method, to reduce caisson joint waves for suppressing internal erosion and collapse behind seawalls and quaywalls. Caisson joints may fail or widen due to the repeated action of waves that pass though the joints. The new method, in which a net fiber material is installed within the joints, is capable of reducing such caisson joint waves by more than 80% in terms of the maximum and average wave pressures. Unlike previous countermeasures, it is applicable to joints of variable width and can autonomically adjust to changes in the configuration and surrounding environment due to continued wave impacts and other dynamic forcing such as earthquakes. Based on a three-year follow-up survey of its application, the proposed method has proven itself effective in suppressing the occurrence of re-collapse behind seawalls that repeatedly collapsed under severer wave loading.
Highlights A new method to suppress internal erosion and collapse behind seawalls and quaywalls is presented. Consistent reduction of waves that pass through caisson joints by more than 80% under severe wave impacts. The method is applicable to new, existing and aging caisson structures. The validity has been confirmed at Major and Strategic International Ports in Japan. The proposed method can contribute to a sustainable management of caisson-type seawalls and quaywalls worldwide.
Net buffer method for suppressing internal erosion and collapse behind seawalls and quaywalls through caisson joint wave reduction
https://orcid.org/0000-0002-0269-200X
Abstract This paper presents a new wave reduction method, called the Net Buffer Method, to reduce caisson joint waves for suppressing internal erosion and collapse behind seawalls and quaywalls. Caisson joints may fail or widen due to the repeated action of waves that pass though the joints. The new method, in which a net fiber material is installed within the joints, is capable of reducing such caisson joint waves by more than 80% in terms of the maximum and average wave pressures. Unlike previous countermeasures, it is applicable to joints of variable width and can autonomically adjust to changes in the configuration and surrounding environment due to continued wave impacts and other dynamic forcing such as earthquakes. Based on a three-year follow-up survey of its application, the proposed method has proven itself effective in suppressing the occurrence of re-collapse behind seawalls that repeatedly collapsed under severer wave loading.
Highlights A new method to suppress internal erosion and collapse behind seawalls and quaywalls is presented. Consistent reduction of waves that pass through caisson joints by more than 80% under severe wave impacts. The method is applicable to new, existing and aging caisson structures. The validity has been confirmed at Major and Strategic International Ports in Japan. The proposed method can contribute to a sustainable management of caisson-type seawalls and quaywalls worldwide.
Net buffer method for suppressing internal erosion and collapse behind seawalls and quaywalls through caisson joint wave reduction
Sassa, Shinji (author) / Ishizaka, Osamu (author)
Coastal Engineering ; 172
2021-11-26
Article (Journal)
Electronic Resource
English
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