Numerical investigation of novel prefabricated hollow concrete blocks for stepped-type seawall structures

Dang, Bao-Loi; Nguyen-Ngoc, Hau; Hoang, Thao Duc; Nguyen‐Xuan, H.; Wahab, Magd Abdel

doi:10.1016/j.engstruct.2019.109558

Cited by 10 publications

(6 citation statements)

References 14 publications

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“…The massive weight of seawalls can be a disadvantage due to high construction costs and large deformation of soil layers underneath resulting in high ground pressure and settlement failures [172]. To reduce the weight and the associated cost, an innovative seawall system consisting of thin-walled concrete blocks (Figure 5Error!…”

Section: Prefabricated Thin-walled Hollow Seawallmentioning

confidence: 99%

“…Reference source not found.) has been developed by BUSADCO [172,173]. The structure is composed of two thin-walled hollow concrete blocks (HCB) at the lower levels, a solid concrete curved wall (SCCW) at the top level for reflecting incident waves, concrete tie beams (CTB) for connecting the HCBs, and concrete berm blocks (CBB) for preventing erosion at the toe of the seawall (Figure 6) [172].…”

Section: Prefabricated Thin-walled Hollow Seawallmentioning

confidence: 99%

“…has been developed by BUSADCO [172,173]. The structure is composed of two thin-walled hollow concrete blocks (HCB) at the lower levels, a solid concrete curved wall (SCCW) at the top level for reflecting incident waves, concrete tie beams (CTB) for connecting the HCBs, and concrete berm blocks (CBB) for preventing erosion at the toe of the seawall (Figure 6) [172]. This novel design reduces the amount of concrete used compared to regular seawalls and is consequently suggested to lead to more cost-effective design.…”

Section: Prefabricated Thin-walled Hollow Seawallmentioning

confidence: 99%

“…This novel design reduces the amount of concrete used compared to regular seawalls and is consequently suggested to lead to more cost-effective design. The results from a numerical study showed that this lightweight concrete seawall can successfully withstand destructive wave-induced forces without soil failures beneath the structure and the entire displacement of the structure can be significantly reduced (up to 54% in lateral displacement and 64% in vertical displacement) [172][173][174].…”

Section: Prefabricated Thin-walled Hollow Seawallmentioning

confidence: 99%

“…Figure 5: Illustration of a thin-walled hollow seawall (redrawn from [172]). CBB, and e) CTB (redrawn from [172]).…”

Section: Prefabricated Thin-walled Hollow Seawallmentioning

confidence: 99%

See 4 more Smart Citations

Concrete Seawalls: Load Considerations, Ecological Performance, Durability, and Recent Innovations

Hosseinzadeh¹,

Ghiasian²,

Andiroglu³

et al. 2021

Preprint

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Increasing frequency of extreme weather events, driven by climate change, has resulted in an increasing demand for coastal structures to protect and stabilize shorelines. Concrete seawalls are a common category of coastal protection structures, designed with the primary objectives of absorbing wave action, preventing coastline erosion, and alleviating flooding. Much research has been carried out on improving the seawall performance. This work is a review of the current state-of-the-art in concrete seawalls focusing on design aspects including wave loading and innovative seawall designs, ecological considerations, and durability aspects. Wave loads on seawalls have received significant attention; however, their quantification remains a challenging task especially for novel designs. Drawing inspiration from natural shorelines, modification of surface complexity at a multitude of scales can improve the otherwise poor ecological performance of seawalls. The corrosion of the steel is a major durability concern, and the use of non-corrosive reinforcement can increase seawall durability towards corrosion. Examples of innovative seawall designs and systems which have the capability to outperform conventional seawalls are discussed. Advances in structural design, ecological engineering, and infrastructure materials science will drive the development of multi-functional seawalls which are sustainable, durable, and resilient.

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Section: Prefabricated Thin-walled Hollow Seawallmentioning

confidence: 99%

Section: Prefabricated Thin-walled Hollow Seawallmentioning

confidence: 99%