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Centrifuge modelling of soil load transfer to flexible sewer lines
This paper presents results of a research project conceived to full this gap in knowledge about the extent to which transferred soil and traffic loads need to be considered in the design of cured-in-place pipes or other flexible liners used for rehabilitation of gravity sewers. The Cambridge geotechnical centrifuge was used to simulate realistic loading sequences and possible deterioration mechanisms of a sewer and its soil syrround, both before and after lining. The technique has for the first time enabled direct physical simulation of (a) the collapse of voids in the surrounding soil and (b) the loss in the separate stages of the flexural and compressive ring stiffnesses of the host pipe as it deteiorates further. The effects of moving traffic loading have als been investigated. Test results show that in adjusting to the deterioration events the existing pipe soil-structure imposes relatively small, quantifiable distortions on the liner pipe. The deformation response of the liner to external loads other that groundwater pressure is prefominantly one of bending and is governed by interactions between the liner, host pipe and the surrounding ground.
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Informasi Detail
- Judul Seri
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Geotechnical Aspects of Underground Construction in Soft Ground (R)
- No. Panggil
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- Penerbit
- London : ., 2006
- Deskripsi Fisik
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- Bahasa
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English
- ISBN/ISSN
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0-415-39124-5
- Klasifikasi
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NONE
- Tipe Isi
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- Tipe Media
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- Tipe Pembawa
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- Edisi
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- Subjek
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- Info Detail Spesifik
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- Pernyataan Tanggungjawab
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