Coal face water control beam
The utility model discloses a coal face water control beam comprising sticks, a bamboo sheath and steel wires. The sticks which are bent and which are uniform in length are gathered in the same direction; the sticks are wrapped with the bamboo sheath in a cylindrical shape; the outer wall of the bam...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The utility model discloses a coal face water control beam comprising sticks, a bamboo sheath and steel wires. The sticks which are bent and which are uniform in length are gathered in the same direction; the sticks are wrapped with the bamboo sheath in a cylindrical shape; the outer wall of the bamboo sheath is bundled at certain intervals with the steel wires, so that the bamboo sheath and the sticks are made into a cylindrical whole. The problem that arranging special attendants for each shift to dig a water trench behind a support as a drain channel is required is solved, and safety of rapid progress of a coal face is guaranteed; the coal face water control beam has the advantages such as ease of acquiring materials, convenience in use, safety and reliability. |
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