Advanced detection drilling construction structure for coal seam tunneling construction

• Main Authors: QI FENGJUN, WU QUNHU, LI JUN, CHANG DESHENG, ZHANG YULONG, YANG XIAOLONG, HAN JINTAO, WANG XINLIANG, LYU CHAO, WU XULIANG
• Format: Patent
• Language: English
• Published: 29.04.2015
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; SHAFTS; TUNNELS

The utility model discloses an advanced detection drilling construction structure for coal seam tunneling construction. The advanced detection drilling construction structure comprises four advanced detection holes which are all drilled forwards from a drilling cross section in a tunnel under construction to a coal seam which the tunnel needs to pass through. The four advanced detection holes include the first detection hole, the second detection hole, the third detection hole and the fourth detection hole, wherein an opening of the first detection hole is located in the upper middle portion of the tunnel excavation face, an opening of the third detection hole and an opening of the fourth detection hole are symmetrically distributed below the left side and the right side of the opening of the first detection hole, the opening of the first detection hole, the opening of the third detection hole and the opening of the fourth detection hole are located at three vertexes of a triangle A, and an opening of the second detection hole is located in the triangle A; the first detection hole is an upward hole, the second detection hole is a horizontal hole, and the fourth detection hole is a downward hole; the four advanced detection holes are all drilled into a top plate of the coal seam which the tunnel needs to pass through. The advanced detection drilling construction structure for coal seam tunneling construction is simple in structure, reasonable in design, convenient to construct and good in use effect, the number of the drilled holes is small, and all the detection holes are reasonable in position arrangement.