Mechanical Behavior of Buried Pipelines Subjected to Faults

Table 1

Details of specimens.

Test coupons	θ (°)	k (N/m)	D (mm)	H (m)	t (mm)
NC-1	75	4729	32	0.3	2.0
NC-2	75	4729	32	0.6	2.0
NC-3	75	4729	40	0.3	2.0
NC-4	90	4729	32	0.3	2.0
NC-5	90	4729	32	0.6	2.0
NC-6	90	4729	40	0.3	2.0
NS-7	90	4729	32	0.3	2.0
NS-8	90	2156	32	0.3	2.0
RC-1	105	4729	32	0.3	2.0
RC-2	105	4729	32	0.6	2.0
RC-3	105	4729	40	0.3	2.0
SC-1	90	4729	32	0.3	2.0
SC-2	90	4729	32	0.6	2.0
SC-3	90	4729	40	0.3	2.0
OC-1	90	4729	40	0.3	1.0
OC-2	90	4729	40	0.6	1.0
OC-3	90	4729	40	0.3	2.0
OC-4	90	4729	32	0.3	1.0
OC-5	90	4729	32	0.6	1.0
OC-6	90	4729	32	0.3	2.0
OC-7	90	4729	25	0.3	1.0
OC-8	90	4729	25	0.6	1.0
OS-9	90	4729	32	0.6	1.0
OS-10	90	4729	32	0.3	1.0
OS-11	90	4729	32	0.3	2.0
OS-12	90	4729	25	0.3	1.0
OS-13	90	12980	25	0.3	1.0

Note. The first letters in test coupons “N,” “R,” “S,” and “O” stand for various fault types referring to the normal fault, the reverse fault, the strike-slip fault, and the oblique-slip fault, respectively. The second letters in test coupons “C” and “S” stand for various soil materials referring to the clay, and the medium sand, respectively; “θ,” “k,” “D,” “H,” and “t” stand for angles crossing the faults, elasticity coefficients at both ends of the pipelines, diameters of the pipelines, buried depths of the pipelines, and wall thicknesses of the pipelines, respectively.