45.1-161.163 - Separation of openings. - Virginia Statutes

§ 45.1-161.163. Separation of openings.

A. In drift or slope mines, openings shall be separated by not less than 50feet of natural strata, unless specifically approved in the roof controlplan. All connections between openings not used for the coursing of air,travel, or haulage shall be closed with stoppings of fireproof material.

B. In shaft mines, openings shall be separated by not less than 200 feet ofnatural strata.

(Code 1950, § 45-71; 1954, c. 191; 1966, c. 594, § 45.1-94; 1994, c. 28;2005, c. 3.)