Tri-cone-head pressing grooving plate and grouting slot construction method
A technology of trough formation and pressure, applied in sea area engineering, water conservancy engineering, infrastructure engineering, etc., can solve problems such as difficult to ensure anti-seepage system, and achieve the effect of fast construction, small disturbance of dams, and small disturbance
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[0023] Such as figure 1 and figure 2 As shown, the three-cone pressure trough plate includes the middle drill pipe 3, the left drill pipe 5 and the right drill pipe 1. The lower end of the rod is a conical head, and the upper end has a connecting head, which can be connected to the static pressing equipment. The shape and size of the left drill rod 5 and the right drill rod 1 are the same, and they are both cylindrical. The left drill rod and the right drill rod Both ends are tapered, the diameter d of the left and right drill pipes is 30~40mm, and the height h is 400~600mm. The left drill rod 5 is connected with the middle drill rod 3 through the left wing plate 4, and the right drill rod 1 is connected with the middle drill rod 3 through the right wing plate 2. The equilateral trapezoidal steel plate with a cutting edge at the end has a thickness of T=10~30mm, and the angle between the trapezoidal hypotenuse and the bottom edge, which is the middle drill pipe, is α=60~70°...
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