Supports

• Pages: 18-19

CHAPTER VI

SUPPORTS

REGULATION 16. GENERAL PROVISIONS

1.

All mine workings shall at the time of their construction

be protected against falls of rock and coal and be maintained

in a safe condition for the whole time that they are in use.

2.

(1) The supports shall be of adequate strength and shall

be installed in accordance with specific rules (mine support rules)

to be laid down by the manager and supplemented or modified by

him as and when required.

(2) In the mine support rules, for every workplace, district

or seam, the method of supporting and the maximum intervals

between the various parts shall be specified, in particular the

intervals between—

(a) supports on roadways;

(b) each row of props at the face;

(c) adjacent props in the same row;

(d) the front row of props and the face;

(e) holing props or sprags;

(f) chocks; and

(g) packs.

3.

Overhanging coal and sides that threaten to fall shall be

taken down or safeguarded against premature collapse by adequate

spragging.

4.

On roads, cavities in the roof shall be filled up as far as

practicable above the roof supports.

5.

When repairing, changing or withdrawing supports special

precautions shall be taken against falls of rock and coal.

6. In repairing fallen-in places the neighbouring supports shall

be specially protected against thrust.

7.

(1) Supports shall be withdrawn only under the general

charge of a supervisory official and only by experienced workers.

(2) The work shall be done from a safe place and a safe distance,

by.means of appropriate tools and safety contrivances, the pro-