Case studies showing the growth and development of geotextile sand containers: an Australian perspective

Restall, Simon; Jackson, LA; Heerten, Georg; Hornsey, W

doi:10.1016/s0266-1144(02)00030-4

Cited by 51 publications

(19 citation statements)

References 2 publications

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“…In order to confirm the long-term stability of the geotextile, an abrasion test (BAW, 1994) was introduced in a modified form by adding an additional O 90 criterion. This test is an important element to assure stability in the given environment (Heibaum et al, 2008;Restall et al, 2002). (iii) CBR.…”

Section: Propertiesmentioning

confidence: 99%

Geotextile bag revetments for large rivers in Bangladesh

Oberhagemann¹,

Hossain

2011

Geotextiles and Geomembranes

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Section: Propertiesmentioning

confidence: 99%

Geotextile bag revetments for large rivers in Bangladesh

Oberhagemann¹,

Hossain

2011

Geotextiles and Geomembranes

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“…Penggunaan kantong pasir sebagai struktur bangunan pantai mempunyai kelebihan, antara lain mudah dilaksanakan di lapangan [1], adanya kesulitan pengadaan batuan yang akan berimplikasi pada biaya [1][2][3][4], dan tersedianya material pasir yang cukup banyak di lokasi [3,5]. Black and Mead [6] menyatakan penggunaan pemecah gelombang soft shore protection tidak mempunyai dampak buruk terhadap ekologi di daerah tersebut.…”

Section: Pendahuluanunclassified

Karakteristik Stabilitas Pemecah Gelombang Kantong Pasir Tipe Tenggelam

Fatnanta

Pratikto

Armono

et al. 2011

MST

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AbstrakStruktur pemecah gelombang merupakan salah satu cara untuk mengatasi masalah abrasi. Pantai merupakan daerah yang relatif sedikit memiliki material batuan sehingga jenis material pemecah gelombang harus menjadi pertimbangan utama. Kelebihan penggunaan kantong pasir sebagai pemecah gelombang adalah dapat dimanfaatkannya material setempat. Atas pemikiran tersebut, dilakukan penelitian mengenai perilaku stabilitas pemecah gelombang kantong pasir tipe tenggelam. Permukaan kantong pasir relatif halus sehingga gaya gesek antar kantong (interlocking) relatif kecil. Sesuai fenomena tersebut, dilakukan kajian parameter yang berpengaruh terhadap stabilitas susunan kantong pasir. Parameter tersebut adalah kemiringan susunan, bentuk dan susunan kantong pasir. Penelitian ini bersifat eksperimental model fisik 2-D, dilakukan di kolam Gelombang Laboratorium Lingkungan dan Energi Laut, Jurusan Teknik Kelautan, Fakultas Teknologi Kelautan, ITS Surabaya. Skala model yang digunakan adalah 1 : 10. Kantong dibuat menjadi dua bentuk, B1 dan B2. Kemiringan model dibuat menjadi dua tipe, 1 : 1,5 dan 1 : 2,0, lebar puncak ditentukan 60 cm. Gelombang teratur (reguler) digunakan pada penelitian ini, periode gelombang ditentukan 1,5 detik, sedangkan tinggi gelombang disesuaikan dengan tingkat stabilitas susunan kantong pasir. Hasil pengujian menunjukkan bahwa respon susunan kantong pasir dipengaruhi oleh gaya gesek antar kantong. Stabilitas susunan kantong pasir dipengaruhi perubahan gaya gelombang sebagai akibat perubahan kemiringan dan perubahan luas penampang, seperti jenis susunan dan bentuk kantong. AbstractThe Stability Characteristics of Sandbag Submerged Breakwater. Breakwater is one of coastal structures to overcome problems of abrasion. Due to difficulties in obtaining rock material at the coastal area. The using of sandbags as a breakwater provides advantages in utilizing local materials. A Sandbag has a smooth surface, so the internal shear forces are relatively small. According to these phenomena, the research for parameters that are expected to affect the stability of the sand bags. These parameters are a slope, shape and formation of sand bags. This experimental research conducted in two dimensional physical model and took place on the flume tank of Ocean Engineering Department, Faculty of Marine Technology, ITS. Scaled model 1 : 10. The bag was made in shapes, B1 and B2. Sand bags were prepared with the slope 1 : 1.5 and 1 : 2,0, width of top was 60 cm. The waves were regular waves, period of 1.5 seconds. The wave height was adjusted with the level of stability sand bags. It showed that the response of the sandbag was influenced by interlocking between sandbags. As a result, the stability depended on the change of wave forces, as a consequence of the change of slope and cross areas due to sandbags shape and formation type.

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“…Hence many number of applications of GSCs in Germany, Australia, (Saathoff et al [1], Restall et al [2]Heerten et al [3]), New Zealand (Jose et al [4]), United States (Fowler & Trainer, [5]), Dubai (Weerakoon et al [6]), Portugal (das Nevas et al [7]), Korea (Shin & Oh [8], Kim et al [9]), Sri Lanka (NAUE [10]) and also in many other parts of the world could be seen during the past few decades.Much research work (Venis [11], Oumeraci et al [12], Recio [13], Mori [14] and Dassanayake & Oumeraci [15]) has been carried out in order to understand the hydraulic processes related to stability of GSCs. However, several factors related to the hydraulic stability of GSC structures have to be studied for better understanding of the processes.…”

Section: Introductionmentioning

confidence: 99%

Hydraulic Stability of Submerged GSC structures

2012

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Abstract:Geotextile Sand Containers (GSCs) are used for the construction of coastal structures as a low cost and softer alternative to expensive and hard structures made of concrete or rubble. However, the hydraulic stability of GSC-structures still needs to be investigated for a better understanding of the processes and the parameters of GSCs, which cause the failure. This study focused on the effect of the geotextile material, the sand fill ratio, and the inclination in GSC placement towards the hydraulic stability of submerged GSC structures. Four sets of specifically designed laboratory model experiments were carried out to study the influence of aforementioned parameters on the GSC stability. A new failure mode of GSCs was identified through the model experiments and named as "uplift and drift". From the test results (wave and damage analysis), new stability curves were developed and compared with each test scenario. The influencing parameters were quantified and the relative importance of each parameter for the hydraulic stability of submerged GSC structures was assessed. Finally, it was concluded that the sand fill ratio is the key influencing parameter among all considered parameters. For the tested sand fill ratios, the hydraulic stability increases, when the sand fill ratio increases. Furthermore, it was concluded that the stability of inclined GSCs is higher than horizontally placed GSCs. However, stability decrement was concluded for GSC made from the woven geotextile material comparative to the nonwoven GSCs. Hence, the type of the geotextile material and the inclination of GSC placement were found to be two important aspects that need to be considered, when designing GSC-structures.

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Case studies showing the growth and development of geotextile sand containers: an Australian perspective

Cited by 51 publications

References 2 publications

Geotextile bag revetments for large rivers in Bangladesh

Geotextile bag revetments for large rivers in Bangladesh

Karakteristik Stabilitas Pemecah Gelombang Kantong Pasir Tipe Tenggelam

Hydraulic Stability of Submerged GSC structures

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