Double-horizontal-cantilever retaining wall multi-track drill

Abstract

The utility model discloses a double horizontal cantilever retaining wall multi-track drill which comprises an orthogonal track drill assembly and a transverse cutting track drill, the orthogonal track drill assembly and the transverse cutting track drill are both installed on a U-shaped steel frame, the orthogonal track drill assembly comprises two orthogonal track drills and two translation assemblies, and the translation assemblies drive the corresponding orthogonal track drills to move horizontally. Each translation assembly comprises a U-shaped driving frame, a translation motor and a sliding block, the translation motors of the two translation assemblies are installed on the two sides of the U-shaped steel frame correspondingly, a supporting seat is arranged in the middle of the position between the translation motors of the two translation assemblies, and the supporting seat is fixed to the U-shaped steel frame through a supporting plate; translation lead screws of translation motors of the two translation assemblies are rotationally connected to the supporting base, sliding blocks are matched with the translation lead screws and installed on the translation lead screws, the sliding blocks are fixed to a U-shaped driving frame, and the U-shaped driving frame is connected with an orthogonal crawler drill. The utility model has the advantage that the horizontal cantilever slab hole is drilled in the rock-soil body through the orthogonal crawler drill assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of retaining wall slotting machine equipment, in particular to a double-horizontal cantilever retaining wall multi-crawler drill. Background Art

[0002] In slope support, roadbed construction and other projects, retaining walls are the most effective measures to transfer the lateral thrust of rock and soil to the stable stratum below the sliding surface, resist the lateral thrust, and control engineering and geological disasters. They are widely used in various engineering fields. The cross-section of traditional retaining walls is large, and the strength of the rock and soil in front of the retaining wall cannot be fully utilized. For retaining walls with horizontal cantilever plate structures, the horizontal cantilever plate can fully utilize the strength of the rock and soil in front of the retaining wall and improve the anti-sliding ability of the retaining wall. However, it is extremely difficult to make holes in the horizontal cantilever plate of the retaining wall with horizontal cantilever plate. Traditional retaining wall holes are usually excavated manually and mechanically. The collapse caused by manual bored pile construction accounts for 65% of the total collapse accidents, and the efficiency is low and the cost is high. Mechanical excavation is safer and more efficient. Therefore, the use of mechanical drilling and excavation of retaining wall holes with horizontal cantilever plates in the rock and soil layer is of great significance to ensure the safety of construction personnel and improve efficiency.

[0003] Existing slotting technologies mainly include bucket type and milling wheel type. Patent No. CN 114687393A "A continuous wall construction equipment and construction method" uses a rotary drill and grab bucket to circulate and drill underground continuous wall grooves. Patent No. CN 110258693A "A hydraulic grab bucket and underground continuous wall construction equipment" uses active buckles and connectors to switch between hydraulic grab buckets and double-wheel milling, achieving multiple uses of one machine to drill underground continuous wall grooves. In order to realize the construction of ground-connected walls in low clearance, patent number CN 114086618A "A modular milling slot device for underground ground-connected wall construction" modularizes the functional components of the ground-connected wall slotting equipment into milling modules, slurry extraction modules, winding modules and accessory reel modules, and connects them from front to back and lays them on the track; patent number CN115070953A "A slotting equipment for underground continuous wall construction in construction projects" installs the synchronous milling and hydraulic cutting equipment between two carrying vehicles through a frame to prevent the slot hole caused by the carrying vehicle from collapsing due to lateral pressure, thereby improving the slotting quality and slot hole stability. Patent No. CN 216108696 U "A Truss Chain Milling and Mixing Ground Wall Machine" and Patent No. CN 115897551 A "A Continuous Wall Construction Equipment and Construction Method Based on TRD Drilling Rig" both set a chain with multiple milling heads evenly distributed on the trusses with active and passive drive mechanisms at both ends, and drive the chain with milling heads to drill the ground wall slots through the active drive mechanism. Although the existing ground wall slotting machine has solved some ground wall slotting problems, the following problems still exist: (1) The soil pressure on the inner side of the retaining wall will cause the contact position between the retaining wall and the embedded section to bulge; (2) The strength of the rock and soil of the embedded section of the retaining wall cannot be fully utilized to resist the deformation of the retaining wall caused by the soil pressure; (3) The anchoring depth of the retaining wall is too large, resulting in excessively high construction costs; (4) It is impossible to realize the construction of horizontal cantilever plate structure holes in the rock and soil. Summary of the invention

[0004] The purpose of the utility model is to provide a double-horizontal cantilever retaining wall multi-track drill based on the above-mentioned deficiencies of the prior art, which is composed of an orthogonal crawler drill assembly and a cross-cutting crawler drill. Vertical wall holes are drilled in the rock and soil by the orthogonal crawler drill assembly and the cross-cutting crawler drill, and horizontal cantilever plate holes are drilled on both sides of the vertical wall holes by the orthogonal crawler drill assembly. The horizontal cantilever plate can make full use of the strength of the rock and soil in front of the retaining wall to improve the anti-slip ability of the retaining wall; reduce the anchoring length of the retaining wall and save construction costs; the drilling of the horizontal cantilever plate holes does not require the assistance of other mechanical equipment, which saves construction period and construction costs, improves work efficiency, and ensures project quality and the safety of construction personnel.

[0005] The purpose of this utility model is achieved by the following technical solutions:

[0006] The cam is an angular movement of the cam which is located adjacent to the top of the U-shaped frame, and the cam is actuated by a pair of cams, each of which is adapted to move along the longitudinal axis of the frame.

[0007] The orthogonal crawler drill comprises a rotary motor assembly, a crawler assembly and a connecting plate. The rotary motor assembly consists of a rotary motor rotor and a gear ring. Two gear rings are relatively arranged on the left and right sides and the rotary motor rotor is fixed on the inner ring of the gear ring. Two connecting plates are relatively arranged on the front and back sides and the two ends of the connecting plates are respectively fixedly connected to the same end of the rotary motor fixed shaft of the two rotary motor rotors. The two ends of the U-shaped driving frame are respectively fixedly connected to the two ends of the rotary motor fixed shaft.

[0008] The track assembly includes a track and a reamer assembly. The track is annular and is provided with a plurality of teeth along the circumference of its inner ring. The teeth on the track are meshed with the teeth on the outer ring of the gear ring. The reamer assembly is evenly arranged along the circumference of the outer ring of the track. The reamer assembly includes a reamer base and a reamer obliquely mounted on the reamer base.

[0009] The U-shaped steel frame is hoisted by a lifting assembly, which includes a cable fixing frame, a lifting beam, a cable motor and a cable. The cable fixing frame is fixed to the bottom surface of the lifting beam, and the cable motor is fixed to the lifting beam via the cable motor shaft thereon. The cable motor is used to drive the cable and the U-shaped steel frame hoisted by its lower end to perform lifting movements.

[0010] The U-shaped steel frame is composed of a left guard plate, a right guard plate and a front guard plate. The left guard plate and the right guard plate are each provided with a drill hole for allowing the orthogonal crawler drill to pass through.

[0011] The advantages of the utility model are:

[0012] (1) Drilling horizontal cantilever plate holes in rock and soil by using an orthogonal crawler drill assembly;

[0013] (2) The horizontal cantilever plate can fully utilize the strength of the rock and soil in the embedded section of the retaining wall to resist the deformation of the retaining wall caused by soil pressure;

[0014] (3) The horizontal cantilever plate can eliminate the uplift at the contact point between the retaining wall and the embedded section caused by the soil pressure inside the retaining wall;

[0015] (4) Reduce the anchorage length of the retaining wall and save construction costs;

[0016] (5) Vertical walls and horizontal cantilever plates in rock and soil bodies can be drilled in one go, which improves construction efficiency and saves construction and equipment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the multi-track drill of the utility model;

[0018] Figure 2 for Figure 1 Cross-section of the middle AA;

[0019] Figure 3 for Figure 1 Cross-section of the middle BB;

[0020] Figure 4 for Figure 1 Cross-section of the middle CC;

[0021] Figure 5 for Figure 1 Cross-section of the middle DD;

[0022] Figure 6 This is a construction flow chart of the retaining wall hole of the utility model;

[0023] Figure 7 for Figure 6 Cross-section of EE;

[0024] Figure 8 This is a force relationship diagram of the retaining wall of the utility model;

[0025] like Figures 1 to 8 As shown, the marks in the figure represent respectively:

[0026] 1. Orthogonal crawler drill assembly, 2. Cross-cut crawler drill, 3. U-shaped steel frame, 4. Lifting assembly;

[0027] 11. Orthogonal crawler drill, 12. Translation assembly;

[0028] 111. Rotating motor assembly, 112. Track assembly, 113. Connecting plate;

[0029] 1111. Rotating motor rotor, 1112. Rotating motor fixed shaft, 1113. Gear ring, 1114. Teeth;

[0030] 1121. crawler, 1122. reamer assembly, 11221. reamer base, 11222. reamer;

[0031] 121. U-shaped driving frame, 122. shaft hole, 123. translation screw, 124. translation motor, 125. sliding block, 126. support seat, 127. support plate;

[0032] 31. Left guard plate, 32. Right guard plate, 33. Front guard plate, 34. Drill hole;

[0033] 41. Cable fixing frame, 42. Lifting beam, 43. Cable motor, 44. Cable motor shaft, 45. Cable;

[0034] a. Multi-track drill, b. Rock formation, c1. Vertical drilling, c2. Horizontal drilling, c3. Vertical wall hole, c4. Horizontal cantilever plate hole, e. Vertical wall, h. Horizontal cantilever plate;

[0035] T. Sliding force, M T .Moment of sliding force, F.Vertical reaction force, M F .Moment of vertical reaction force, G.Gravity, M G .The torque of gravity. DETAILED DESCRIPTION

[0036] The following is a further detailed description of the features of the present invention and other related features through embodiments in conjunction with the accompanying drawings to facilitate understanding by technicians in the same industry:

[0037] Example: Figures 1 to 8 As shown, the present embodiment relates to a double-horizontal cantilever retaining wall multi-track drill, which mainly comprises a U-shaped steel frame 3, a lifting assembly 4, an orthogonal track drill assembly 1 and a cross-cutting track drill 2. The lifting assembly 4 is used to lift the U-shaped steel frame 3. The orthogonal track drill assembly 1 and the cross-cutting track drill 2 are both installed on the U-shaped steel frame 3, and the orthogonal track drill assembly 1 is horizontally arranged, and the cross-cutting track drill 2 is vertically arranged. The bottom of the orthogonal track drill assembly 1 and the bottom and side of the cross-cutting track drill 2 are exposed outside the bottom of the U-shaped steel frame 3. The bottom surfaces of the orthogonal track drill assembly 1 and the cross-cutting track drill 2 are flush with each other, and are used to drill vertical wall holes in the rock and soil to form a vertical wall. The orthogonal track drill assembly 1 can be moved horizontally, that is, the horizontal direction of the orthogonal track drill assembly 1 can be moved outside the U-shaped steel frame 3, and is used to drill horizontal cantilever plate holes in the rock and soil to form a horizontal cantilever plate.

[0038] like Figures 1 to 5As shown, the U-shaped steel frame 3 is composed of a left guard plate 31, a right guard plate 32 and a front guard plate 33, and a drill hole 34 is provided on each of the left guard plate 31 and the right guard plate 32 to allow the orthogonal crawler drill assembly 1 (orthogonal crawler drill 11) to pass through. The lifting assembly 4 includes a cable fixing frame 41, a hanging beam 42, a cable motor 43 and a cable 45. The cable fixing frame 41 is fixed to the bottom surface of the hanging beam 42, and the cable motor 43 is fixed to the hanging beam 42 via the cable motor shaft 44 thereon. The cable motor 43 is used to drive the cable 45 and the U-shaped steel frame 3 hoisted at its lower end to perform lifting and lowering movements to ensure the normal operation of the orthogonal crawler drill assembly 1 and the cross-cutting crawler drill 2. Among them, the cable 45 is connected to the left guard plate 31 and the right guard plate 32 of the U-shaped steel frame 3 respectively.

[0039] like Figures 1 to 5 As shown, the orthogonal crawler drill assembly 1 includes two orthogonal crawler drills 11 and two translation assemblies 12. The translation assembly 12 drives the corresponding orthogonal crawler drill 11 to move horizontally, that is, the translation assembly 12 drives the corresponding orthogonal crawler drill 11 to pass through the corresponding drill opening 34 and move to the outside of the U-shaped steel frame 3 to drill horizontal cantilever plate holes in the rock and soil. The orthogonal crawler drill 11 includes a rotating motor assembly 111, a crawler assembly 112 and a connecting plate 113. The rotating motor assembly 111 is composed of a rotating motor rotor 1111 and a gear ring 1113. Two gear rings 1113 are relatively arranged on the left and right, and the rotating motor rotor 1111 is fixed on the inner ring of the gear ring 1113. Two connecting plates 113 are relatively arranged on the front and back, and the two ends of the connecting plates 113 are respectively fixedly connected to the same end of the rotating motor fixed shaft 1112 of the two rotating motor rotors 1111. The connecting plate 113 is provided with an axial hole 122 corresponding to the rotating motor fixed shaft 1112, and the gear ring 1113 is provided with a plurality of teeth 1114 along the circumference of its outer ring. The crawler assembly 112 includes a crawler 1121 and a reamer assembly 1122. The crawler 1121 is annular and is provided with a plurality of teeth 114 along the circumference of its inner ring. The teeth 114 on the crawler 1121 mesh with the teeth 114 on the outer ring of the gear ring 1113. The reamer assembly 1122 is evenly arranged along the circumference of the outer ring of the crawler 1121. The reamer assembly 1122 includes a reamer base 11221 and a reamer 11222 obliquely mounted on the reamer base 11221. The rotating motor rotor 1111 drives the gear ring 1113 to rotate, so as to drive the crawler 1121 to rotate, thereby driving the reamer 11222 of the reamer assembly 1122 to reamer the rock and soil. The inclined arrangement of the reamer 11222 is more conducive to reamer excavation of the rock and soil.

[0040] The translation assembly 12 includes a U-shaped driving frame 121, a translation motor 124 and a sliding block 125. The translation motors 124 of the two translation assemblies 12 are respectively installed on both sides of the U-shaped steel frame 3 (left guard plate 31 and right guard plate 32). A support seat 126 is provided in the middle between the translation motors 124 of the two translation assemblies 12. The support seat 126 is fixed to the U-shaped steel frame 3 (front guard plate 33) through a support plate 127. The translation screw rods 123 of the translation motors 124 of the two translation assemblies 12 are respectively rotatably connected to the support seat 126. The sliding block 125 cooperates with the translation screw rod 123 and is installed on the translation screw rod 123. The sliding block 125 is fixed to the middle part of the U-shaped driving frame 121. The two ends of the U-shaped driving frame 121 are respectively fixedly connected to the two ends of a rotating motor fixed shaft 1112. Both ends of the U-shaped driving frame 121 are provided with shaft holes 122 corresponding to the rotating motor fixed shaft 1112. The translation motor 124 drives the translation screw 123 to rotate, so as to drive the sliding block 125 to move along the length direction of the translation screw 123 , thereby realizing the horizontal movement of the orthogonal crawler drill 11 .

[0041] In this embodiment, except that the cross-cutting track drill 2 is vertically arranged, and the two ends of the fixed shaft 1112 of the rotating motor of the cross-cutting track drill 2 are respectively fixedly connected to the left guard plate 31 and the right guard plate 32 of the U-shaped steel frame 3 (the connecting plate 113 is not provided), the remaining structures of the cross-cutting track drill 2 are the same as those of the orthogonal track drill 11, so they are not repeated here.

[0042] like Figures 1 to 7 As shown, in this embodiment, a multi-track drill a is used to drill a retaining wall hole in a rock formation b. The steps of the retaining wall hole construction method are as follows:

[0043] The horizontal directions of the two orthogonal crawler drills 11 are both located inside the U-shaped steel frame 3, and the orthogonal crawler drill 11 and the cross-cutting crawler drill 2 are controlled to drill the vertical borehole c1 downward until the designed depth of the vertical borehole c1 is reached, and the cross-cutting crawler drill 2 is used to drill the vertical borehole c1 horizontally to form a vertical wall hole c3. The multi-crawler drill a is lifted upward to move the orthogonal crawler drill assembly 1 to the designed depth of the horizontal cantilever plate hole c4, and the translation motor 124 of the translation assembly 12 is used to control the two orthogonal crawler drills 11 to drill the horizontal borehole c2 outward. After the drilling of the group of horizontal boreholes c2 is completed, the translation motor 124 of the translation assembly 12 drives the two orthogonal crawler drills 11 to retreat into the U-shaped steel frame 3, and then the multi-crawler drill a is moved along the length of the vertical wall hole c3 to drill the next group of horizontal boreholes c2, and this cycle is repeated until the excavation of the horizontal cantilever plate hole c4 is completed.

[0044] like Figure 8 As shown, the retaining wall includes a vertical wall e and a horizontal cantilever plate h. The horizontal cantilever plates h are respectively arranged on both sides of the vertical wall e, namely the first horizontal cantilever plate and the second horizontal cantilever plate. The sliding force T of the rock formation b acts on the retaining wall, and the moment of the sliding force T is MT , using the strength of the rock mass under the first horizontal cantilever plate, the first horizontal cantilever plate and the embedded rock mass generate an upward vertical reaction force F, and the moment of the vertical reaction force F is M F Moment M with sliding force T T On the contrary, the deformation capacity of the retaining wall is improved; the rock and soil on the second horizontal cantilever plate exerts gravity G on the second horizontal cantilever plate, and the moment M of gravity G G Moment M with sliding force T T The same is used to improve the pull-out resistance of the retaining wall.

[0045] The beneficial technical effects of this embodiment are:

[0046] (1) Drilling horizontal cantilever plate holes in rock and soil by using an orthogonal crawler drill assembly;

[0047] (2) The horizontal cantilever plate can fully utilize the strength of the rock and soil in the embedded section of the retaining wall to resist the deformation of the retaining wall caused by soil pressure;

[0048] (3) The horizontal cantilever plate can eliminate the uplift at the contact point between the retaining wall and the embedded section caused by the soil pressure inside the retaining wall;

[0049] (4) Reduce the anchorage length of the retaining wall and save construction costs;

[0050] (5) Vertical walls and horizontal cantilever plates in rock and soil bodies can be drilled in one go, which improves construction efficiency and saves construction and equipment costs.

[0051] Although the above embodiments have described the concepts and embodiments of the purpose of the utility model in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the utility model without departing from the scope of the claims, so they are not described one by one here.

Claims

1. A double-horizontal cantilever retaining wall multi-track drill, characterized in that: The cam is provided with a U-shaped drive frame, and the U-shaped drive frame is fixedly connected to the drive frame by a plurality of movable members, and the movable members are connected to the U-shaped drive frame by a plurality of movable members.

2. A double-horizontal cantilever retaining wall multi-track drill according to claim 1, characterized in that: The orthogonal crawler drill comprises a rotary motor assembly, a crawler assembly and a connecting plate. The rotary motor assembly consists of a rotary motor rotor and a gear ring. Two gear rings are relatively arranged on the left and right sides and the rotary motor rotor is fixed on the inner ring of the gear ring. Two connecting plates are relatively arranged on the front and back sides and the two ends of the connecting plates are respectively fixedly connected to the same end of the rotary motor fixed shaft of the two rotary motor rotors. The two ends of the U-shaped driving frame are respectively fixedly connected to the two ends of the rotary motor fixed shaft.

3. A double-horizontal cantilever retaining wall multi-track drill as claimed in claim 2, characterized in that: The track assembly includes a track and a reamer assembly. The track is annular and is provided with a plurality of teeth along the circumference of its inner ring. The teeth on the track are meshed with the teeth on the outer ring of the gear ring. The reamer assembly is evenly arranged along the circumference of the outer ring of the track. The reamer assembly includes a reamer base and a reamer obliquely mounted on the reamer base.

4. A dual-horizontal cantilever retaining wall multi-track drill according to claim 1, characterized in that: The U-shaped steel frame is hoisted by a lifting assembly, which includes a cable fixing frame, a lifting beam, a cable motor and a cable. The cable fixing frame is fixed to the bottom surface of the lifting beam, and the cable motor is fixed to the lifting beam via the cable motor shaft thereon. The cable motor is used to drive the cable and the U-shaped steel frame hoisted by its lower end to perform lifting movements.

5. The double-horizontal cantilever retaining wall multi-track drill according to claim 1, characterized in that: The U-shaped steel frame is composed of a left guard plate, a right guard plate and a front guard plate. The left guard plate and the right guard plate are each provided with a drill hole for allowing the orthogonal crawler drill to pass through.

Images