Table 2 Sensor parameters and position.

From: Model experimental study on the mechanism of collapse induced by leakage of underground pipeline

Name of Sensor

Basic parameter

Kpa/μξ

X/cm

Y/cm

Z/cm

CH3

0.06944

18

120

79.3

CH5

0.0885

18

106

79.3

CH6

0.0901

18

134

79.3

CH7

0.05291

34

120

79.3

CH8

0.09259

18

120

88.6

CH9

0.08

18

100

88.6

CH10

0.09091

18

140

88.6

CH11

0.09009

38

120

88.6

CH12

0.07813

18

120

107.5

CH13

0.07813

18

95

107.5

CH21

0.07874

18

145

107.5

CH25

0.09524

43

120

107.5

CH26

0.06757

18

120

126.5

CH27

0.0625

18

95

126.5

CH28

0.06803

43

120

126.5

CH29

0.012107

18

80

126.5

CH30

0.01111

58

120

126.5

CH31

0.09615

18

145

126.5

CH34

0.07692

18

160

126.5

CH35

0.06667

68

120

144.7

CH36

0.01066

43

120

144.7

CH37

0.06897

18

70

144.7

CH38

0.06452

18

170

144.7

CH39

0.0641

18

120

144.7

CH40

0.0885

18

95

144.7