Performance Research of Materials and Engineering Application of Overburden Strata Separation-Zone Grouting Technology

Table 7

The injection-production ratio table of each side of the second mining district.

	T2191	T2192	T2193上	T2193下	T2194	T2195	Second mining district
Mining space (m^3)	1,601,228.5	1,185,036.6	1,093,955.3	1,044,856.0	1,118,089.0	1,066,103.9	7,109,269.4
Grout amount (m^3)	1,300,139	1,152,108	1,009,252	1,223,743	1,314,813	1,132,784	7,132,839
Cement take (m^3)	288,075	257,113.6	311,363.7	323,597	290,882.2	250,430	1,721,462
Injection ash ratio (%)	18	21.7	28.5	31	26	23.5	24.2
Grouting ratio (%)	81.2	97.2	92.3	117.1	117.6	106.3	100.3