Characteristics of the In Situ Stress Field and Engineering Effect along the Lijiang to Shangri-La Railway on the Southeastern Tibetan Plateau, China
Table 1
Measured in situ stress results along the Lijiang to Shangri-La railway.
No.
Lith.
Burial depth H/m
Orientation
Q
No.
Lith.
Burial depth H/m
Orientation
Q
1
Limestone
370.1
10.77
5.98
9.6
—
7
Basalt
566.0
14.43
10.04
14.96
N45°W
A
377.3
11.38
6.71
9.79
N42ºE
A
635.9
18.61
12.72
16.81
—
420.7
12.72
7.52
10.92
—
690.7
20.65
14.26
18.26
—
479.1
13.54
8.22
12.43
N47ºE
A
719.3
20.93
14.54
19.01
—
483.7
13.66
7.22
12.55
—
761.9
22.35
15.96
20.14
N26°W
A
493.3
15.11
8.31
12.8
N53ºE
A
837.2
23.59
16.2
22.13
N34°W
A
510.7
15.19
8.33
13.25
—
873.0
24.44
17.55
23.08
—
2
Limestone
437.3
11.26
6.29
11.56
N21°W
A
888.1
25.09
18.2
23.48
—
477.5
12.69
7.2
12.63
—
8
Phyllite
239.8
5.82
4.16
6.22
—
517.4
15.09
8.59
13.68
—
268.3
6.59
4.69
6.96
N15ºW
A
544.7
15.22
8.82
14.41
N24°W
A
290.9
7.03
4.82
7.55
—
572.0
15.77
8.74
15.13
N20°W
A
9
Limestone
253.7
7.33
4.99
6.59
—
3
Basalt
294.3
8.54
6.02
7.77
N20ºW
A
283.2
11.22
6.98
7.35
N53°W
A
299.5
9.16
6.59
7.91
N15ºW
A
310.2
11.78
7.54
8.06
—
320.8
8.77
6.19
8.47
—
338.5
14.96
9.12
8.79
N49°W
A
365.8
9.38
7.82
9.67
—
357.8
14.35
9.61
9.29
—
409.9
12.24
8.86
10.83
—
362.5
16.9
10.55
9.41
N60°W
A
459.0
12.4
9.71
12.13
—
10
Limestone
170.2
4.49
2.77
4.59
N17°W
A
4
Basalt
208.8
9.44
6.98
5.51
N18°W
A
191.1
4.38
2.43
5.15
—
236.3
11.94
8.16
6.24
—
224.7
6.58
3.86
6.06
—
278.5
11.81
8.94
7.35
—
241.1
5.53
3.86
6.5
N18°W
A
319.5
10.92
8.56
8.44
—
254.6
5.42
3.91
6.87
N18°W
A
347.3
14.3
9.83
9.17
N27°W
A
11
Slate
197.8
3.94
2.93
5.22
—
389.8
14.95
11.03
10.3
—
216.6
6.13
4.12
5.72
N19°W
A
408.9
14.2
11.12
10.8
N32°W
A
244.8
6.23
4.4
6.47
—
5
Basalt
274.2
8.46
5.68
7.24
N14°W
A
263.6
8.59
5.58
6.96
—
280.8
9.02
5.74
7.41
—
282.4
8.77
5.76
7.46
—
288.1
8.61
6.82
7.6
N22°W
A
301.2
8.96
5.95
7.96
N36°W
A
313.2
11.34
7.56
8.27
—
330.0
10.24
6.73
8.72
—
338.7
12.59
8.31
8.94
—
350.4
10.94
6.93
9.26
N25°W
A
351.2
13.71
8.43
9.27
N29°W
A
358.8
11.52
7.51
9.48
—
372.8
15.44
9.65
9.85
—
12
Slate
222.8
7.5
5.18
5.88
N42°W
A
6
Basalt
327.8
11.36
7.71
8.51
—
245.7
9.22
5.9
6.49
—
420.7
12.77
9.62
10.93
N56°W
A
254.9
9.31
6.49
6.74
—
444.0
15
9.35
11.53
—
263.8
9.4
6.08
6.97
—
462.6
15.68
10.53
12.01
N62°W
A
272.6
10
6.17
7.2
N27°W
A
471.9
15.27
10.62
12.25
—
290.7
11.16
7.34
7.68
495.1
17
11.85
12.86
N54°W
A
305.8
12.81
7.99
8.08
N20°W
A
Lith: lithology. σH: maximum horizontal principal stress, σh: minimum horizontal principal stress, and σV: vertical stress. The quality ranking (Q) of the WSM project (Heidbach et al., [18]) was used to assess the reliability of the results in each well.
