A construction method for cutting large-volume concrete

Abstract

A construction method for cutting large-volume concrete, in which the construction devices are a water drill (2), a wire saw machine (3) of a diamond wire saw and diamond beads (4), and a pneumatic pick (12). First, four vertical deep grooves distributed in a square shape are drilled on the large-volume concrete pier by using the water drill (2) and the wire saw. Then, the wire saw is used to cut obliquely from two directions to remove most of the concrete (11) in the middle of the four deep grooves. Finally, the remaining concrete (11) is broken and removed by using the pneumatic pick (12). Compared with the pneumatic pick excavation plan, the deep hole excavation plan described in the present invention has less construction quantity, saves costs, and saves the construction period.

Description

Technical Field

[0001] The present invention relates to a construction method for cutting mass concrete, and more specifically to a construction method for cutting mass concrete using a wire saw, belonging to the technical field of mass concrete renovation. Background Art

[0002] In some reinforcement and renovation projects, deep holes need to be dug on the surface of mass concrete such as dams. Traditionally, a pneumatic pick is used for construction. First, the concrete on the surface of the concrete pier is broken up, and after the broken pieces are removed, the pneumatic pick is continued to break up the concrete downward, layer by layer, and the broken pieces are removed. Summary of the Invention

[0003] The purpose of the present invention is to address the problems of large construction volume, high cost, and long construction period when using a pneumatic pick to drill deep holes in mass concrete.

[0004] To achieve the above object, the technical solution adopted by the present invention is: a construction method for cutting mass concrete. First, four vertical deep grooves distributed in a square shape are drilled on the mass concrete pier using a water drill and a wire saw. Then, the wire saw is used to cut obliquely from two directions and remove most of the concrete between the four deep grooves. Finally, the remaining concrete is broken up and removed using a pneumatic pick.

[0005] Compared with the prior art, the beneficial effects of the present invention are:

[0006] The deep hole excavation solution of the present invention has a smaller construction volume, saves costs, and saves construction period compared with the pneumatic pick excavation solution. Brief Description of the Drawings

[0007] Figure 1 It is a schematic diagram of step one.

[0008] Figure 2 It is a schematic diagram of step two.

[0009] Figure 3 It is a schematic diagram of step three.

[0010] Figure 4 It is a schematic diagram of step four.

[0011] Figure 5 It is a schematic diagram of step five.

[0012] Figure 6 It is a schematic diagram of step six.

[0013] Figure 7 It is a schematic diagram of step seven.

[0014] Figure 8 It is a schematic diagram of step eight.

[0015] Figure 9 It is a schematic diagram of step nine.

[0016] Figure 10 It is a schematic diagram of Step Ten.

[0017] In the figure, there is a mass concrete pier (1), a wire saw machine (3) of a diamond wire saw, and diamond beads (4) of a diamond wire saw. Specific Embodiment

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] See Figures 1 to 10 , a construction method for cutting mass concrete, including the following steps:

[0020] Step One, use a water drill (2) to drill vertical holes (5) on the surface of the mass concrete (1) to be dug to the design depth;

[0021] Step Two, use a water drill (2) to drill inclined holes (6) on the surface of the mass concrete (1), intersecting with the vertical holes (5) at the bottom of the holes;

[0022] Step Three, install the wire saw machine (3) and diamond beads (4) of the diamond wire saw, use the diamond beads (4) to cut two vertical seams on both sides of the concrete (7) between the vertical holes (5) and the inclined holes (6), and use a crane to lift the middle concrete (7) away;

[0023] Step Four, use a water drill (2) to drill vertical holes (8) to the design depth at the orifice position of the inclined holes (6) on the surface of the mass concrete (1);

[0024] Step Five, use a water drill (2) to drill horizontal holes (9) at the intersection of the vertical holes (5) and the inclined holes (6), intersecting with the vertical holes (8) at the bottom of the holes;

[0025] Step Six, install the wire saw machine (3) and diamond beads (4) of the diamond wire saw, use the diamond beads (4) to cut two vertical seams on both sides of the concrete (10) between the vertical holes (8) and the horizontal holes (9), use a crane to lift the middle concrete (10) away, and cut a vertical deep groove on the surface of the mass concrete (1);

[0026] Step Seven, repeat Step One to Step Six to cut another three vertical deep grooves on the surface of the mass concrete (1), and the four deep grooves are distributed in a square shape;

[0027] Step Eight, install the wire saw machine (3) and diamond beads (4) of the diamond wire saw, use the diamond beads (4) to obliquely cut the concrete (11) between the four deep grooves, and use a crane to lift the cut concrete (11) away;

[0028] Step 9: Install the wire saw machine (3) and diamond beads (4) of the diamond wire saw, and use the diamond beads (4) to obliquely cut the concrete (11) between the four deep grooves at an angle, and use a crane to lift away the cut concrete (11);

[0029] Step 10: Use a pneumatic pick (12) to break up the remaining concrete (11) and transport it away to complete the excavation of the large-volume concrete pier (1);

[0030] Preferably, the drilling diameter of the water drill (2) should be greater than 30 cm to facilitate the installation of diamond beads.

[0031] The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can be made, and the above structures should all be regarded as belonging to the protection scope of the present invention.

Claims

1. A construction method for cutting large-volume concrete, comprising the following steps: Step 1: Use a water drill (2) to drill vertical holes (5) on the surface of the large-volume concrete (1) to be dug to the designed depth; Step 2: Use a water drill (2) to drill inclined holes (6) on the surface of the large-volume concrete (1), intersecting with the vertical holes (5) at the bottom of the holes; Step 3: Install a wire saw machine (3) and diamond beads (4) of a diamond wire saw, use the diamond beads (4) to cut two vertical seams on both sides of the concrete (7) between the vertical holes (5) and the inclined holes (6), and use a crane to lift the middle concrete (7) away; Step 4: Use a water drill (2) to drill a vertical hole (8) to the designed depth at the orifice position of the inclined hole (6) on the surface of the large-volume concrete (1); Step 5: Use a water drill (2) to drill a horizontal hole (9) at the intersection of the vertical hole (5) and the inclined hole (6) to intersect with the vertical hole (8) at the bottom of the holes; Step 6: Install a wire saw machine (3) and diamond beads (4) of a diamond wire saw, use the diamond beads (4) to cut two vertical seams on both sides of the concrete (10) between the vertical hole (8) and the horizontal hole (9), and use a crane to lift the middle concrete (10) away, cutting out a vertical deep groove on the surface of the large-volume concrete (1); Step 7: Repeat Steps 1 to 6 to cut out another three vertical deep grooves on the surface of the large-volume concrete (1), and the four deep grooves are distributed in a square shape; Step 8: Install a wire saw machine (3) and diamond beads (4) of a diamond wire saw, use the diamond beads (4) to obliquely cut the concrete (11) between the four deep grooves, and use a crane to lift the cut concrete (11) away; Step 9: Install a wire saw machine (3) and diamond beads (4) of a diamond wire saw, use the diamond beads (4) to obliquely cut the concrete (11) between the four deep grooves at another angle, and use a crane to lift the cut concrete (11) away; Step 10: Use a pneumatic pick to break up the remaining concrete (11) and transport it away, completing the excavation of a hole in the large-volume concrete (1).

2. The construction method according to claim 1, characterized in that The diameter of the holes drilled by the water drill (2) is greater than 30 cm to facilitate the installation of diamond beads.

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