The Compression Behavior of Large Diameter Glass Reinforced Plastic Mortar Pipe for Pipe-Jacking

doi:10.16183/j.cnki.jsjtu.2009.02.005

Abstract

Abstract:

The mechanical behavior of large diameter glass reinforced plastic mortar pipe for pipe-jacking was studied by tests. The compressive strength and elastic module of large diameter glass reinforced plastic mortar pipe material were presented from experiments. The failure mode of the glass reinforced plastic mortar pipe material was analyzed from the stress-strain wreck curves under pressure, and the difference of the failure characteristics between the two types of pipes were discussed. The test results show that the glass reinforced plastic mortar pipe is brittle material, and the failure mode of enlaced pipe and centrifugal pipe is different. The strength and uniformity of the centrifugal pipe is better than that of tbe enlaced pipe.

Key words: glass reinforced plastic mortar pipe, materials test, compressive strength, elastic module, failure mode

CLC Number:

TU502

GU Yang, HUANG Jin-ming, CHEN Jin-jian, WANG Jian-hua. The Compression Behavior of Large Diameter Glass Reinforced Plastic Mortar Pipe for Pipe-Jacking[J]. Journal of Shanghai Jiao Tong University, 2009, 43(02): 178-181.

Figures/Tables 5

Fig. 1

Fig. 2

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Tab. 1

Fig. 4

References 6

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加工工艺	试样部位		抗压强度		破坏应变		弹性模量
加工工艺	试样部位		平均值/MPa	变异系数	平均值/%	变异系数	平均值/GPa	变异系数
缠绕式	管身	纵向	89.01	0.114	2.23	0.224	6.72	0.060
?	?	环向	88.20	0.082	1.50	0.275	8.12	0.092
?	管端	纵向	105.68	0.141	1.37	0.188	8.44	0.065
?	?	环向	251.97	0.235	1.42	0.172	19.49	0.073
离心浇铸式	管身	纵向	96.91	0.012	1.90	0.021	8.64	0.028
?	?	环向	99.62	0.055	1.60	0.093	8.92	0.076

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