Experimental Research on Material and Mechanical Properties of Rock-Like Filling Materials in Disaster Prevention of Underground Engineering

Table 5

Monitoring data of maximum stress and deformation of gangue filling body.

Line number	Number of pressure gauge measuring points	Maximum pressure of measuring point (MPa)	Number of pressure gauge measuring points	Maximum pressure of measuring point (MPa)	Position of working face
Line 1	11Y bottom	1.3	11L	——	Top
	12Y bottom	1.7	12L	——	Middle
Line 2	21Y bottom	1.8	21L	35.3	Top
	22Y bottom	3.3	22L	54.6	Middle
Line 3	31Y bottom	2.7	31L	52.7	Top
	32Y top	5.2	32L	104.4	Middle
	33Y top	3.8	33L	49.5	Bottom
Line 4	41Y top	3.5	41L	51.3	Top
	42Y top	5.1	42L	99.1	Middle
	41Y bottom	2.2	43L	41.2	Top
	42Y bottom	3.7	——	——	Middle