Rectangular deep hole drilling machine with stepped horizontal cantilever with haunch

Abstract

The application discloses a step-by-step rectangular deep hole drilling machine with a horizontal cantilever and a haunch, which is suitable for rock stratum, and comprises a drilling rig with a cable and a drilling machine hoisted at the lower end of the cable; the drilling machine comprises, from top to bottom, a rock slag treatment mechanism, a multifunctional drilling assembly and a vertical drilling device; the rock slag treatment mechanism comprises a stirring device, a slag suction system, a crushing device, a grouting system and a slag discharge system; the grouting system is connected to the multifunctional drilling assembly and the vertical drilling device; the multifunctional drilling assembly comprises a multifunctional drilling device, a rotating hydraulic cylinder, a crank hydraulic cylinder, a horizontal hydraulic cylinder and a multifunctional drilling reaction frame; and the vertical drilling device comprises a plurality of cylindrical drilling assemblies arranged horizontally and forming a rectangular excavation surface. The application has the advantages that the haunch, the horizontal cantilever and the vertical pile body can be formed at one time, other mechanical aids are not needed, the construction efficiency is improved, and the construction and equipment costs are saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of anti-slide pile drilling machine equipment, in particular to a step-by-step rectangular deep hole drilling machine with a haunched horizontal cantilever suitable for rock strata. BACKGROUND

[0002] In slope support, roadbed construction, foundation pit excavation and tunnel entrance and exit construction, anti-slide pile is the most effective measure to resist lateral thrust and govern engineering and geological disasters by transferring lateral thrust of rock and soil mass to stable strata below the sliding surface. Anti-slide pile is divided into rectangular cross-section anti-slide pile and circular cross-section anti-slide pile. Rectangular anti-slide pile has the advantages of large lateral stiffness and high single-pile bearing capacity, which can effectively enhance the anti-slide force and improve the anti-slide coefficient. Therefore, rectangular cross-section anti-slide pile is widely used in various engineering fields.

[0003] Traditional rectangular cross-section anti-slide pile has a large cross-section and cannot fully utilize the strength of rock and soil mass in front of the pile. For anti-slide pile with horizontal cantilever structure, the horizontal cantilever can fully utilize the strength of rock and soil mass in front of the pile to improve the anti-slide capacity of the anti-slide pile. However, the horizontal cantilever pile hole of the rectangular anti-slide pile with horizontal cantilever is extremely difficult to form. Traditional rectangular cross-section anti-slide pile usually adopts manual excavation and mechanical excavation methods. The collapse caused by manual hole digging pile construction accounts for 65% of the total number of collapse accidents, and the efficiency is low and the cost is high. Mechanical excavation is safer and more efficient. Therefore, it is of great significance to ensure the safety of construction personnel and improve efficiency by using mechanical drilling to excavate the pile hole of the rectangular anti-slide pile with horizontal cantilever in rock and soil layer.

[0004] At present, there are various rectangular drilling machine equipment and excavation methods, for example:

[0005] Patent No. CN 106836354 A "Rectangular Anti-slide Pile Mechanical Hole Forming Device" forms a rectangular cutting head by a plurality of cutting pieces, and a counterweight or a hydraulic propulsion device is arranged at the rear end of the cutting head to realize the drilling and excavation of the rectangular pile hole.

[0006] Patent No. CN 103244053 A "Rectangular Drilling Machine" mainly drives two T-shaped cutter heads uniformly distributed at the lower part of two steel frames to move reciprocally by two cam bodies, so as to cut the soil to form a rectangular hole.

[0007] Patent No. CN 104533300 A "Rectangular Drilling Machine" is provided with a conical drill bit at the bottom of a rectangular transmission box and a cross-shaped long knife on four side surfaces. The conical drill bit drills into a circular pile hole, and then the cross-shaped long knife is rotated to cut and trim the circular pile hole into a rectangular pile hole.

[0008] Patent No. CN 207715083 U "Rectangular Anti-slide Pile Hole Forming Drilling Machine" mainly provides a circular drill cylinder and a rectangular drill cylinder at the bottom of a drill rod. The circular drill cylinder is rotated to form a circular pile hole, and then the rectangular drill cylinder cuts the soil around the circular pile hole to form a rectangular pile hole.

[0009] Patent No. CN 105951798 A "A rectangular drilling machine" is mainly through the motor drive four with reamer concave waist cylinder cutting soil, drilling into a rectangular pile hole.

[0010] The existing drilling machine mainly forms a vertical rectangular pile hole in the rock-soil body, but has the following problems: (1) it cannot realize drilling and digging of a rectangular anti-slide pile hole with a horizontal cantilever structure in the soil, and cannot realize drilling and digging in the rock body (gravel, pebble, soft rock, hard rock and other strata); (2) other machines (grab) or auxiliary measures (mud slurry positive circulation deslagging method) are used to clean the deslag in the pile hole, the integration of drilling and deslagging equipment is low, the drilling construction efficiency is low and the cost is high. SUMMARY

[0011] The purpose of the present application is to overcome the shortcomings of the prior art, provide a step-by-step rectangular deep hole drilling machine with a haunched horizontal cantilever suitable for rock strata, which is hoisted by a cable on a drill carriage to adapt to the length requirement of the deep hole, and uses the self-weight of the drill to generate pressure to drill down, and the drill realizes step-by-step construction of a rectangular deep hole with a haunched horizontal cantilever by controlling the multifunctional drill assembly and the vertical drilling device, that is, the vertical drilling device excavates a vertical rectangular pile hole by using cylindrical drill assemblies arranged in a matrix form, then stops the work of the vertical drilling device when the vertical rectangular pile hole is excavated to the designed depth with a haunched horizontal cantilever, and the multifunctional drill assembly is rotated outward to form the haunched part, then the multifunctional drill device is driven by the horizontal hydraulic cylinder on the multifunctional drill assembly to move horizontally outward to realize drilling and digging of a horizontal cantilever structure in the deep rock body, thereby forming a horizontal cantilever pile hole with a haunched part; then the multifunctional drill device is retracted and rotated to the vertical state, and finally the vertical drilling device continues to excavate the rectangular pile hole to the designed depth; in addition, when the multifunctional drill assembly and the vertical drilling device roll in the rock strata, mud slurry is injected into the pile hole through the grouting system to facilitate the suction of rock blocks mixed with mud slurry.

[0012] The purpose of the present application is achieved by the following technical solutions:

[0013] A step-by-step rectangular deep hole drilling machine with a haunched horizontal cantilever suitable for rock strata, characterized in that the rectangular deep hole drilling machine comprises a drill carriage with a cable and a drill hoisted at the lower end of the cable, the drill comprises, from top to bottom, a rock deslagging mechanism, a multifunctional drill assembly and a vertical drilling device; wherein:

[0014] The slag treatment mechanism comprises a stirring device, a slag suction system, a crushing device, a grouting system and a slag discharge system, the stirring device comprises a stirring box and a stirring mechanism arranged on the stirring box; the slag suction port arranged on the stirring box is connected with the slag suction system through the crushing device, and the slag discharge port arranged on the stirring box is connected with the slag discharge system; the grouting system is connected to the multifunctional drilling assembly and the vertical drilling device;

[0015] The multifunctional drilling assembly comprises a multifunctional drilling device, a rotating hydraulic cylinder, a crank hydraulic cylinder, a horizontal hydraulic cylinder and a multifunctional drilling counterforce frame, the multifunctional drilling counterforce frame is in the form of a laterally open box, the upper swing plate at the lower end of the multifunctional drilling device is rotationally connected with the lower swing plate on the bottom surface of the multifunctional drilling counterforce frame through a connecting shaft, the rotating hydraulic cylinder is hinged to the middle or upper part of the multifunctional drilling device, the crank hydraulic cylinder is hinged to the upper swing plate through a crank shaft, and the crank shaft is located directly below the connecting shaft; the lower swing plate is slidingly connected with the bottom surface of the multifunctional drilling counterforce frame, the horizontal hydraulic cylinder is connected with the lower swing plate and drives the lower swing plate to move horizontally; the multifunctional drilling counterforce frame comprises a multifunctional hydraulic counterforce plate, a multifunctional hydraulic upper side plate arranged at the upper end of the multifunctional hydraulic counterforce plate, a multifunctional hydraulic lower side plate arranged at the lower end of the multifunctional hydraulic counterforce plate and multifunctional hydraulic side plates arranged on both sides of the multifunctional hydraulic counterforce plate, and the multifunctional hydraulic lower side plate is fixed to the vertical drilling device; the rear end of the cylinder barrel of the rotating hydraulic cylinder is hinged to the multifunctional hydraulic counterforce plate through a hinge base, the rear end of the cylinder barrel of the crank hydraulic cylinder is hinged to the multifunctional hydraulic counterforce plate through a hinge base, and the rear end of the cylinder barrel of the horizontal hydraulic cylinder is fixed to the multifunctional hydraulic counterforce plate; the upper swing plate is in the form of a semicircle;

[0016] The vertical drilling device comprises a plurality of cylindrical drilling assemblies arranged horizontally and forming a rectangular excavation surface.

[0017] The multifunctional drilling device comprises a mounting frame and a plurality of multifunctional cylindrical drilling assemblies arranged on the mounting frame, the mounting frame is composed of a multifunctional drilling web plate and multifunctional drilling wing plates arranged on both sides of the multifunctional drilling web plate, and each multifunctional cylindrical drilling assembly is arranged at intervals along the vertical surface and the top surface of the mounting frame.

[0018] The sliding connection between the lower swing plate and the bottom surface of the multifunctional drilling counterforce frame refers to that a T-shaped sliding groove is formed on the multifunctional hydraulic lower side plate, a T-shaped sliding block is arranged on the lower swing plate, and the T-shaped sliding block on the lower swing plate is assembled in the T-shaped sliding groove of the multifunctional hydraulic lower side plate to form a sliding connection.

[0019] The drilling rig comprises a vehicle-mounted platform, a steel stand, a pull rod, a hinge shaft, a guide rail, a sliding block, a steel suspension beam, a hoist motor and a cable support, the steel stand is vertically arranged on the vehicle-mounted platform, the upper end of the pull rod is hingedly connected with the upper end of the steel stand and the lower end is hingedly connected with the hinge shaft fixed on the vehicle-mounted platform, the guide rail is vertically arranged and fixed along the steel stand, the sliding block is slidably arranged on the guide rail, the steel suspension beam is fixed on the sliding block, the hoist motor is fixed on the steel suspension beam, and the cable support is fixed below the steel suspension beam, and the hoist motor drives the cable to move up and down in the vertical direction.

[0020] The stirring mechanism comprises a main gear and a plurality of auxiliary gears in transmission with the main gear, the main gear is driven to rotate by a stirring motor, a stirring main rotating shaft extending into the stirring box is coaxially arranged on the main gear, and stirring blades are arranged on the stirring main rotating shaft; a stirring auxiliary rotating shaft extending into the stirring box is coaxially arranged on the auxiliary gear, and stirring blades are arranged on the stirring auxiliary rotating shaft.

[0021] The vertical drilling device comprises a U-shaped fork plate and a plurality of cylindrical drilling assemblies arranged in a matrix on the U-shaped fork plate, the U-shaped fork plate is composed of a web plate, wing plates arranged on both sides of the web plate and a steel support vertically welded on the web plate, the cylindrical drilling assembly comprises two cylinders, a motor driving the cylinders to rotate, a plurality of rolling cutter assemblies arranged on the surface of the cylinders at intervals and a plurality of reamer assemblies arranged between adjacent rolling cutter assemblies, the rolling cutter assembly comprises a rolling cutter base and a ring of rolling cutters fixed on the rolling cutter base, and the reamer assembly comprises a reamer base and a reamer fixed on the reamer base at an angle, and the motor is fixed on the steel support and drives the cylinders to rotate.

[0022] The slag suction system comprises a main pipe, a vertical pipe and a multifunctional pipe, the main pipe is provided with a suction port, the vertical pipe is branched from the suction port of the main pipe, the suction head of the vertical pipe is connected into the vertical drilling device, and the suction head of the multifunctional pipe is connected into the multifunctional drilling device; a valve is arranged at each of the suction heads, and the pipe body of the multifunctional pipe is a telescopic pipe.

[0023] The grouting system comprises a main pipe and a grouting pump arranged on the main pipe, the lower end of the main pipe is branched into a vertical pipe and a multifunctional pipe, the nozzle of the vertical pipe extends into the vertical drilling device and is close to the position of the cylindrical drilling assembly, and the nozzle of the multifunctional pipe extends into the multifunctional drilling assembly and is close to the position of the multifunctional drilling device; a valve is arranged at each of the nozzles, and the pipe body of the multifunctional pipe is a telescopic pipe.

[0024] The slag discharge system includes a slag discharge pipe and a slag discharge pump. One end of the slag discharge pump is connected to the slag discharge pipe, and the other end is connected to the slag discharge port on the mixing tank.

[0025] A pipe fixing frame is provided above the stirring mechanism, and the slag suction main pipe, the grouting pipe and the slag discharge pipe are all arranged and fixed along the pipe fixing frame.

[0026] The advantages of this invention are:

[0027] (1) A multi-functional cylindrical drill with rotatable and horizontally sliding cutters and cutters arranged by cable and belt intervals can be used to drill rectangular pile holes with horizontal cantilever and haunch structure in deep rock mass;

[0028] (2) The pile can be drilled in one go with the haunches, horizontal cantilever and vertical pile body without the need for other mechanical assistance, so as to improve construction efficiency and save construction and equipment costs;

[0029] (3) The rock is crushed twice by the crushing box, which can better discharge it from the pile hole and prevent the slag discharge pipe from being blocked;

[0030] (4) It has both drilling and slag removal functions, and the drilling rig has a high degree of integration, which realizes the uninterrupted synchronous operation of drilling and slag removal, reduces construction procedures, saves construction costs, and improves drilling efficiency. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the present invention;

[0032] Figure 2 This is a schematic diagram showing the positions of various cross-sections of the present invention;

[0033] Figure 3 This is a partial schematic diagram of the present invention;

[0034] Figure 4 For the present invention Figure 2 AA section view in the middle;

[0035] Figure 5 This is a front view of the vertical drilling device in this invention;

[0036] Figure 6 For the present invention Figure 5 BB section view in the middle;

[0037] Figure 7 For the present invention Figure 2 CC section view in the middle;

[0038] Figure 8 For the present invention Figure 2 DD section view in the middle;

[0039] Figure 9 For the present inventionFigure 2 E-E cross-sectional view in

[0040] Figure 10 for the present invention Figure 2 F-F cross-sectional view in

[0041] Figure 11 for the present invention Figure 2 G-G cross-sectional view in

[0042] Figure 12 for the present invention Figure 2 H-H cross-sectional view in

[0043] Figure 13 side view of the multifunctional drilling assembly in the present invention

[0044] Figure 14 for the present invention Figure 13 I-I cross-sectional view in

[0045] Figure 15 for the present invention Figure 2 J-J cross-sectional view in

[0046] Figure 16 for the present invention Figure 2 K-K cross-sectional view in

[0047] Figure 17 for the present invention Figure 2 L-L cross-sectional view in

[0048] Figure 18 M-M cross-sectional view in the present invention Figure 2

[0049] Figure 19 construction steps of the step-by-step rectangular deep hole drilling machine with horizontal cantilever with haunches adapted to rock strata in the present invention

[0050] As shown in Figures 1-19 , the respective marks in the figure are as follows:

[0051] 1. vertical drilling device, 2. multifunctional drilling assembly, 3. stirring device, 4. crushing device, 5. slag suction system, 6. pipeline fixing frame, 7. slag discharge system, 8. grouting system, 9. drilling car

[0052] ​11. cylindrical drill assembly, 12. vertical drill U-shaped fork plate, 111. cylindrical, 112. reamer assembly, 113. roller cutter assembly, 114. motor, 115. motor shaft, 121. vertical drill wing plate, 122. vertical drill mid-web, 123. vertical drill upper web, 124. vertical drill steel support, 125. shaft hole, 126. vertical slurry suction branch pipe through hole, 127. vertical slurry injection branch pipe through hole, 128. vertical slurry suction main pipe through hole, 1121. reamer base, 1122. reamer, 1131. roller cutter base, 1132. roller cutter;

[0053] 21. multifunctional drill device, 22. rotating hydraulic cylinder, 23. crank hydraulic cylinder, 24. horizontal hydraulic cylinder, 25. multifunctional drill counterforce frame, 211. multifunctional drill U-shaped fork plate, 2111. multifunctional drill wing plate, 2112. multifunctional drill web, 2113. groove, 2114. multifunctional slurry suction branch pipe through hole, 2115. multifunctional slurry injection branch pipe through hole, 212. U-shaped thick plate, 2121. shaft hydraulic cylinder wing plate, 2122. shaft hydraulic cylinder web, 2123. rotating shaft, 213. U-shaped connector, 2131. bottom plate, 2132. upper swing plate, 2133. connecting shaft hole, 2134. connecting shaft, 2135. crank shaft, 251. multifunctional hydraulic side guard plate, 252. multifunctional hydraulic upper side plate, 253. multifunctional hydraulic lower side plate, 254. multifunctional hydraulic counterforce plate, 255. T-shaped sliding groove, 256. lower swing plate, 257. T-shaped sliding block, 258. hinge base;

[0054] 31. mixing box, 32. double-layer large blade, 33. main mixing shaft, 34. double-layer small blade, 35. auxiliary mixing shaft, 36. single-layer small blade, 37. main gear, 38. main gear isolation pad, 39. auxiliary gear, 310. auxiliary gear isolation pad, 311. steel cover plate, 312. mixing motor;

[0055] 41. crushing box, 42. middle partition plate, 43. connecting pipe, 44. rack, 45. fan motor, 46. fan blade, 47. crushing knife, 48. screen;

[0056] 51. slurry suction main pipe, 52. vertical slurry suction branch pipe, 53. multifunctional slurry suction branch pipe, 54. telescopic pipe, 55. suction head, 56. vertical slurry suction valve, 57. multifunctional slurry suction valve;

[0057] 61. top steel plate, 62. middle steel plate, 63. bottom steel plate, 64. side stand, 65. square through hole, 66. slurry discharge pipe fixing hole, 67. slurry injection pipe fixing hole;

[0058] 71. slurry discharge pipe, 72. slurry discharge pump;

[0059] 81. Grouting main pipe, 82. Grouting pump, 83. Vertical grouting branch pipe, 84. Multifunctional grouting branch pipe, 85. Nozzle, 86. Vertical grouting valve, 87. Multifunctional grouting valve;

[0060] 91. Hoist motor; 92. Fixed shaft; 93. Cable; 94. Cable support; 95. Steel cantilever beam; 96. Slider; 97. Steel column; 98. Guide rail; 99. Hinge shaft; 910. Tie rod; 911. Vehicle platform;

[0061] a. Rock strata, b. Drilling rig, c. Free section pile hole, d. Haunched hole, e. Horizontal cantilever pile hole, f. Embedded section pile hole. Implementation

[0062] The features and other related features of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate understanding by those skilled in the art:

[0063] Example: Figures 1-18 As shown, this embodiment specifically relates to a step-by-step rectangular deep hole drilling rig with a horizontal cantilever and axle, which is adapted to rock formations. The rectangular deep hole includes a drilling rig 9 and a drilling machine hoisted by a cable 93 on the drilling rig 9. The drilling machine includes a rock cuttings treatment mechanism, a multi-functional drilling assembly 2 and a vertical drilling device 1 connected in sequence from top to bottom. The rock cuttings treatment mechanism includes a stirring device 3, a crushing device 4, a slag suction system 5, a slag discharge system 7 and a grouting system 8.

[0064] like Figure 1 As shown, the drilling rig 9 includes a vehicle-mounted platform 911, a steel column 97, a tie rod 910, a hinge shaft 99, a guide rail 98, a slider 96, a steel cantilever beam 95, a cable support 94, a winch motor 91, a fixed shaft 92, and a cable 93. The vehicle-mounted platform 911 has tracked wheels and is located on the ground. The steel column 97 is vertically mounted at the front end of the vehicle-mounted platform 911. The tie rod 910 provides diagonal bracing reinforcement to the steel column 97. Specifically, the upper end of the tie rod 910 is hinged to the upper end of the steel column 97, and the lower end... The system is hinged to the hinge shaft 99 of the vehicle platform 911; the guide rail 98 is fixedly attached to the steel column 97 to form a vertical track; the slider 96 is slidably mounted on the guide rail 98 and can slide vertically under the drive of the power mechanism; the steel cantilever beam 95 is fixed to the slider 96; the cable bracket 94 is fixed to the bottom surface of the steel cantilever beam 95; the winch motor 91 is fixed to the steel cantilever beam 95 via the fixed shaft 92; the winch motor 91 is used to drive the cable 93 and the drilling rig suspended at its lower end to perform lifting and lowering movements. It should be noted that, due to the large weight of the drilling rig, it can move downwards under its own weight, eliminating the need for the drill rod to press down as before; and the cable 93 has sufficient length to meet the drilling requirements for rectangular deep holes.

[0065] likeFigures 1-8 As shown, the vertical drilling device 1 is used for deep hole drilling of rectangular anti-slide piles, mainly including a plurality of cylindrical drill assemblies 11 and a vertical drilling U-shaped fork plate 12 used as a mounting frame, the vertical drilling U-shaped fork plate 12 mainly includes a vertical drilling middle web plate 122, a vertical drilling upper web plate 123 and vertical drilling wing plates 121 located on both sides of the vertical drilling middle web plate 122, and based on the number of cylindrical drill assemblies 11, a vertical drilling steel support 124 is vertically welded at the middle position of the vertical drilling middle web plate 122. Each set of cylindrical drill assembly 11 is composed of two cylindrical drills, one motor 114 and one motor shaft 115, the number of cylindrical drills in the embodiment is 4, and they are distributed in a matrix to form a rectangular cutting surface, which forms a rectangular pile hole during downward cutting. The matrix distribution here refers to that the cylindrical drills are arranged on both sides of the vertical drilling steel support 124. The cylindrical drill includes a cylinder 111, a plurality of hob assemblies 113 distributed at intervals on the surface of the cylinder 111, and a plurality of reamer assemblies 112 distributed at intervals between adjacent hob assemblies 113 on the surface of the cylinder 111, the centrally arranged vertical drilling steel support 124 is welded or bolted with the motor 114 shell, the motor shaft 115 of the motor 114 drives the rotation of the two side cylinders 111, and the end of the motor shaft 115 is supported in the shaft hole 125 of the two side vertical drilling wing plates 121. As shown in the figure, Figures 5-8 As shown, the height of the hob assembly 113 protruding on the cylinder 111 is higher than that of the reamer assembly 112, so when cutting the rock mass, the hob 1132 on the hob assembly 113 first contacts the rock mass, that is, the hob assembly 113 first cracks the entire rock surface into a plurality of large rocks, and then the reamer assembly 112 further reams the large rocks on the excavation surface into small diameter rock blocks (or rock slag); the hob assembly 113 includes a hob base 1131 and a ring of hobs 1132 fixed on the hob base 1131; the reamer assembly 112 includes a reamer base 1121 and a reamer 1122, which is tilted and installed to facilitate reaming of the rock stratum. For rock mass, if the hob 1132 is used to directly crush the rock mass on the excavation surface or the reamer 1122 is used to directly ream, the strength, hardness and wear resistance of the hob and the reamer material need to meet high requirements, which not only increases the difficulty of developing the hob and reamer materials, but also increases the construction cost. By combining the hob 1132 and the reamer 1122, the hob 1132 only cracks the rock mass on the excavation surface to reduce the strength of the rock mass, which facilitates the reamer 1122 to cut the rock mass more easily, thereby not only reducing the requirements for the strength, hardness and wear resistance of the hob and reamer materials, but also reducing the wear of the reamer and the hob. Therefore, the method of first cracking the rock mass on the excavation surface by the hob 1132 and then cutting the low-strength rock mass after cracking by the reamer 1122 can not only improve the work efficiency, but also reduce the tool wear and reduce the construction cost.

[0066] In addition, a vertical suction main pipe through hole 128 is provided on the upper web plate 123 of the vertical drill to fix the suction main pipe 51; a plurality of vertical suction branch pipe through holes 126 and vertical grouting branch pipe through holes 127 are provided on the middle web plate 122 of the vertical drill to fix the vertical suction branch pipe 53 and the vertical grouting branch pipe 83, respectively.

[0067] like Figures 1-3 As shown in Figures 9-14, the multi-functional drilling assembly 2 includes a multi-functional drilling device 21, a rotary hydraulic cylinder 22, a crank hydraulic cylinder 23, a horizontal hydraulic cylinder 24, and a multi-functional drilling reaction frame 25; wherein, the multi-functional drilling reaction frame 25 includes a multi-functional hydraulic reaction plate 254, multi-functional hydraulic side guard plates 251 arranged on both sides of the multi-functional hydraulic reaction plate 254, a multi-functional hydraulic upper side plate 252 arranged on the top of the multi-functional hydraulic reaction plate 254, and a multi-functional hydraulic lower side plate 253 arranged at the bottom of the multi-functional hydraulic reaction plate 254, so that the multi-functional drilling reaction frame 25 forms a box-shaped structure with a side opening. The multi-functional drilling device 21 is arranged within the box-shaped structure of the multi-functional drilling reaction frame 25 and located at its open portion. It includes several multi-functional cylindrical drilling assemblies and a mounting frame for mounting these assemblies. Specifically, the mounting frame consists of a multi-functional drilling web 2112 and multi-functional drilling wing plates 2111 on both sides. Each multi-functional cylindrical drilling assembly is spaced apart on the vertical and top surfaces of the mounting frame, enabling it to drill into the rock mass during rotation and lateral movement in a horizontal state. In this embodiment, the multi-functional cylindrical drilling assembly includes a cylinder, several roller cutter assemblies spaced apart on the cylinder surface, and several reamer assemblies arranged between adjacent roller cutter assemblies. The cylinder is fixed to the mounting frame by a multi-functional drilling U-shaped fork plate 211. The roller cutter assemblies protrude from the cylinder at a higher height than the reamer assemblies. Each roller cutter assembly includes a roller cutter base and a ring of roller cutters fixed to the roller cutter base. The reamer assembly includes a reamer base and reamer cutters. The reamer cutters are installed at an inclined position under the fixation of the reamer base, facilitating the excavation of rock formations. The bottom of the mounting frame is provided with a U-shaped connector 213 for hinged connection with the lower swing plate 256 on the multi-functional hydraulic lower side plate 253. The U-shaped connector 213 includes a base plate 2131 and an upper swing plate 2132 welded to both sides of the base plate 2131. The base plate 2131 is fixedly connected to the bottom of the multi-functional drill web plate 2112 and the bottom of the multi-functional drill wing plate 2111. The upper swing plate 2132 is semi-circular and is hinged to the lower swing plate 256 via a connecting shaft 2134. The connecting shaft 2134 passes through the lower swing plate 256 and the connecting shaft hole 2133 on the upper swing plate 2132.

[0068] like Figures 1-3As shown in 9-14, one end of the rotating hydraulic cylinder 22 is hinged to the multifunctional hydraulic counterforce plate 254, and the other end is hinged to the U-shaped thick plate 212 on the back of the multifunctional drill web plate 2112, which is specifically composed of the rotating hydraulic cylinder wing plate 2121 and the rotating hydraulic cylinder web plate 2122. The front end of the rotating hydraulic cylinder 22 is hinged to the U-shaped thick plate 212 through the rotating shaft 2123. The U-shaped thick plate 212 is located in the middle or upper part of the multifunctional drill web plate 2112, and a groove 2113 is formed in the back of the multifunctional drill web plate 2112 to facilitate the arrangement of the U-shaped thick plate 212. In addition, one end of the crank hydraulic cylinder 23 is hinged to the multifunctional hydraulic counterforce plate 254 through the hinge seat 258, and the other end is hinged to the upper swing plate 256 through the crank shaft 2135. It should be noted that the hinge seat 258 and the connecting shaft 2134 are located at the same horizontal position on the multifunctional hydraulic counterforce plate 254, and the crank shaft 2135 is located directly below the connecting shaft 2134. One end of the horizontal hydraulic cylinder 24 is connected to the multifunctional hydraulic counterforce plate 254, and the other end is connected to the lower swing plate 256. In this embodiment, a T-shaped sliding groove 255 is formed in the multifunctional hydraulic lower plate 253, and the bottom of the lower swing plate 256 is connected to a T-shaped sliding block 257. After the T-shaped sliding block 257 and the T-shaped sliding groove 255 are assembled, they form a sliding fit. When the horizontal hydraulic cylinder 24 pushes the lower swing plate 256, the T-shaped sliding block 257 on it can move horizontally along the T-shaped sliding groove 255. As shown in Figure 19 As the center of rotation of the connecting shaft 2134, the rotating hydraulic cylinder 22 pushes the multifunctional drill device 21 outward to rotate around the connecting shaft 2134, and the crank hydraulic cylinder 23 assists the multifunctional drill device 21 to rotate around the connecting shaft 2134, achieving the purpose of the rotating hydraulic cylinder 22 and the crank hydraulic cylinder 23 jointly driving the multifunctional drill device 21 to rotate outward to cut the rock mass and form a pile hole. After that, when the multifunctional drill device 21 rotates from a vertical state to a horizontal state, the horizontal hydraulic cylinder 24 pushes the lower swing plate 256 to move outward, and in the process of moving outward, the rotating hydraulic cylinder 22 and the crank hydraulic cylinder 23 also elongate synchronously. The advantages of this method are: first, the cutting force of the multifunctional drill device 21 is increased during the rotary cutting of the rock-soil mass; second, the stability of the multifunctional drill device 21 is increased during the rotary cutting of the rock-soil mass.

[0069] Further, a through hole is formed in the multifunctional hydraulic counterforce plate 254, and a multifunctional sludge suction branch pipe through hole 2114 and a multifunctional grouting branch pipe through hole 2115 are formed in the multifunctional drill web plate 2112. The multifunctional sludge suction branch pipe 53 branched from the sludge suction main pipe 51 of the sludge suction system 5 extends into the multifunctional drilling device 21 through the through hole of the multifunctional hydraulic counterforce plate 254 and the multifunctional sludge suction branch pipe through hole 2114 of the multifunctional drill web plate 2112, and the suction head 55 of the multifunctional sludge suction branch pipe 53 sucks the sludge excavated at the multifunctional drilling device 21. In order to adapt to the rotation and horizontal extension of the multifunctional drilling device 21, the multifunctional sludge suction branch pipe 53 is in the form of a telescopic pipe. The multifunctional grouting branch pipe 84 branched from the grouting main pipe 81 of the grouting system 8 extends into the multifunctional drilling device 21 through the through hole of the multifunctional hydraulic counterforce plate 254 and the multifunctional grouting branch pipe through hole 2115 of the multifunctional drill web plate 2112, and the nozzle 85 of the multifunctional grouting branch pipe 84 performs grouting at the multifunctional drilling device 21. In order to adapt to the rotation and horizontal extension of the multifunctional drilling device 21, the multifunctional grouting branch pipe 84 is in the form of a telescopic pipe.

[0070] As shown in Figures 1-18 , the rock slag treatment mechanism includes a stirring device 3, a crushing device 4, a sludge suction system 5, a sludge discharge system 7, and a grouting system 8.

[0071] The stirring device 3 includes a stirring box 31 and a stirring mechanism. The stirring box 31 is fixedly installed on the upper surface of the multifunctional drill counterforce frame 25. The stirring mechanism includes a main gear 37 and a plurality of auxiliary gears 39 in transmission with the main gear 37. The main gear 37 is driven to rotate by a stirring motor 312, and in turn drives each auxiliary gear 39 to rotate. The main gear 37 is coaxially provided with a stirring main rotating shaft 33 extending into the stirring box 31. The stirring main rotating shaft 33 is provided with stirring blades. The stirring blades are double-layer large blades 32. Each auxiliary gear 39 is coaxially provided with a stirring auxiliary rotating shaft 35 extending into the stirring box 31. The stirring auxiliary rotating shaft 35 is also provided with stirring blades. The stirring blades on part of the stirring auxiliary rotating shafts 35 are double-layer small blades 34, and the stirring blades on another part of the stirring auxiliary rotating shafts 35 are single-layer small blades 36. The mud and slurry in the stirring box 31 are stirred to obtain uniformly mixed slurry, which is beneficial to discharge. In order to avoid the mud and slurry in the stirring box 31 from penetrating into the gear box where the main gear 37 and the auxiliary gears 39 are located during stirring, a main gear isolation pad 38 is arranged at the joint of the stirring main rotating shaft 33 and the stirring box 31, and an auxiliary gear isolation pad 310 is arranged at the joint of the stirring auxiliary rotating shaft 35 and the stirring box 31. Figure 3 As shown in

[0072] The suction port of the stirring box 31 is connected with a suction system 5, which mainly comprises a suction main pipe 51, a vertical suction branch pipe 52, a multifunctional suction branch pipe 53 and the crushing device 4. One end of the suction main pipe 51 is connected with the suction port of the stirring box 31 through the crushing device 4, and the other end (i.e. the suction end) of the suction main pipe 51 is bifurcated into the vertical suction branch pipe 52 and the multifunctional suction branch pipe 53, as shown in Figure 3 the vertical suction branch pipe 52 extends into the vertical drilling device 1, and the suction head 55 of the vertical suction branch pipe 52 is close to the cylindrical drilling assembly 11, so that it can suck the rock sludge cut and stirred, and a vertical suction valve 56 is arranged at the suction head 55 for controlling the opening and closing of the pipeline. The multifunctional suction branch pipe 53 extends into the multifunctional drilling assembly 2, and the suction head 55 of the multifunctional suction branch pipe 53 is close to the multifunctional drilling device 21, so that it can suck the rock sludge cut and stirred, and a multifunctional suction valve 57 is arranged at the suction head 55 for controlling the opening and closing of the pipeline. In order to adapt to the rotation and forward and backward movement of the multifunctional drilling device 21, the pipeline of the multifunctional suction branch pipe 53 is in the form of a telescopic pipe 54.

[0073] The sucked sludge is crushed into small particles by the crushing device 4 and then enters the stirring box 31. The crushing device 4 mainly comprises a crushing box 41, a partition plate 42, a connecting pipe 43, a rack 44, a fan motor 45, fan blades 46, crushing knives 47 and a screen 48. The partition plate 42 is arranged obliquely in the crushing box 41 to form a slope for facilitating the flow of sludge. The fan motor 45 is installed on the top plate in the crushing box 41 through the rack 44. The fan blades 46 are arranged on the rotating shaft of the fan motor 45. The high-speed rotating fan motor 45 and fan blades 46 can form a negative pressure suction in the suction main pipe 5. The crushing knives 47 are installed at the installation position of the fan motor 45, so that the sucked sludge must be crushed by the crushing knives 47 before entering the stirring box 31 through the connecting pipe 43. The screen 48 is arranged at the end surface of the fan motor 45 to filter large particle sludge, so as to avoid the sludge flowing into the stirring box 31 from the fan motor 45.

[0074] The grouting system 8 mainly comprises a grouting main pipe 81, a grouting pump 82, a vertical grouting branch pipe 83 and a multifunctional grouting branch pipe 84. Since the rectangular deep hole drilling machine in the embodiment is applied to a rock stratum, the cuttings are rock debris, which are difficult to be pumped and transported due to the granular pure solid. Therefore, the main function of the grouting system 8 is to pump the supplemented slurry to the cutting position, so that the rock debris and the slurry are mixed to facilitate pumping. The grouting pump 82 is responsible for the pumping operation. The grouting main pipe 81 extends into the multifunctional drilling assembly 2 and the vertical drilling device 1 from the ground. The lower end of the grouting main pipe 81 branches into the multifunctional grouting branch pipe 84 and the vertical grouting branch pipe 83, which extend into the multifunctional drilling assembly 2 and the vertical drilling device 1, respectively, to pump the slurry. The injection end of the multifunctional grouting branch pipe 84 is a nozzle 85, and a multifunctional grouting valve 87 is arranged at the nozzle 85. The injection end of the vertical grouting branch pipe 83 is a nozzle 85, and a vertical grouting valve 86 is arranged at the nozzle 85. During the drilling and excavation process, the multifunctional grouting valve 87 and the vertical grouting valve 86 are determined to be opened or closed according to whether the rectangular deep hole drilling machine is excavating a rectangular hole downward or excavating a horizontal cantilever pile hole laterally or excavating a haunch hole.

[0075] The discharge port of the mixing box 31 is connected to the discharge system 7 on the ground. The discharge system 7 comprises a discharge pipe 71 and a discharge pump 72. The lower end of the discharge pipe 71 is connected to the discharge port of the mixing box 31 and extends downward to a certain depth to facilitate the pumping of more slurry. The discharge pipe 71 pumps the uniformly mixed slurry from the mixing box 31 to the ground through the discharge pump 72 for collection and treatment.

[0076] As shown in Figs. Figures 1-3 The pipe fixing frame 6 is in a box type structure, comprising a top steel plate 61, a middle steel plate 62, a bottom steel plate 63 and a plurality of side plates 64 connecting the three. In addition, a square through hole 65 is formed in the bottom steel plate 63 for the arrangement of the mixing motor 312. In addition, discharge pipe fixing holes 66 for the discharge main pipe 71 and grouting pipe fixing holes 67 for the grouting main pipe 81 are formed in the top steel plate 61, the middle steel plate 62 and the bottom steel plate 63. In order to avoid pipe shaking during drilling, the pipe fixing frame 6 can provide fixing for the passing pipes. It should be noted that four lifting points are provided on the top steel plate 61 for the connection of the cables 93 to ensure stable hoisting of the pipe fixing frame 6.

[0077] As shown in Figs. Figure 19 The construction method of the rectangular deep hole drilling machine in the embodiment for step-by-step drilling and excavation of a rectangular anti-slide pile hole with a haunch horizontal cantilever in a rock stratum comprises the following steps:

[0078] (S1) In the rock stratum a, the vertical drilling device 1 on the drilling rig b is used to drill a vertical rectangular pile hole to form a free section pile hole c until the design depth of the horizontal cantilever pile hole e; in this process, the suction head 55 of the vertical slurry suction branch pipe 52 continuously sucks slurry, the nozzle 85 of the vertical grouting branch pipe 83 continuously grouts, and the suction head 55 of the multifunctional slurry suction branch pipe 53 is closed, and the nozzle 85 of the multifunctional grouting branch pipe 84 is closed.

[0079] (S2) After reaching the design elevation of the horizontal cantilever pile hole e, stop the drilling work of the vertical drilling device 1; open the multifunctional drilling assembly 2, under the drive of the rotating hydraulic cylinder 22 and the crank hydraulic cylinder 23, the multifunctional drilling device 21 gradually rotates outward with the connecting shaft 2134 as the rotation shaft and simultaneously cuts and excavates the rock mass, until the multifunctional drilling device 21 rotates from the vertical state to the horizontal state, and accumulates 90 degrees of rotation, to form the haunch hole d; in this process, the suction head 55 of the multifunctional slurry suction branch pipe 53 continuously sucks slurry, the nozzle 85 of the multifunctional grouting branch pipe 84 continuously grouts, the suction head 55 of the vertical slurry suction branch pipe 52 is closed, and the nozzle 85 of the vertical grouting branch pipe 83 is closed.

[0080] (S3) Then, open the horizontal hydraulic cylinder 24 and drive the swing plate 256 to move outward, and the multifunctional drilling device 21 is drilled outward horizontally to form the horizontal cantilever pile hole e; in this process, the rotating hydraulic cylinder 22 and the crank hydraulic cylinder 23 are also synchronously elongated; and the suction head 55 of the multifunctional slurry suction branch pipe 53 continuously sucks slurry, the nozzle 85 of the multifunctional grouting branch pipe 84 continuously grouts, the suction head 55 of the vertical slurry suction branch pipe 52 is closed, and the nozzle 85 of the vertical grouting branch pipe 83 is closed.

[0081] (S4) After completing the construction of the haunch hole d and the horizontal cantilever pile hole e, the horizontal hydraulic cylinder 24 drives the multifunctional drilling device 21 to shrink inward to the minimum stroke, and the rotating hydraulic cylinder 22 and the crank hydraulic cylinder 23 drive the multifunctional drilling device 21 to rotate and reset to the vertical state; then the vertical drilling device 1 is used to continue drilling to the design depth to form the embedded section pile hole f, in this process, the suction head 55 of the vertical slurry suction branch pipe 52 continuously sucks slurry, the nozzle 85 of the vertical grouting branch pipe 83 continuously grouts, the suction head 55 of the multifunctional slurry suction branch pipe 53 is closed, and the nozzle 85 of the multifunctional grouting branch pipe 84 is closed.

[0082] The beneficial effects of the embodiment are:

[0083] (1) The rotatable and horizontally sliding multifunctional cylindrical drill with interval arranged reamers and hobs through cables realizes the drilling of a rectangular pile hole with horizontal cantilever and haunch structure in deep rock mass;

[0084] (2) The add-on, horizontal cantilever and vertical pile body can be once formed into a hole, without other mechanical assistance, to achieve the purposes of improving construction efficiency and saving construction and equipment costs;

[0085] (3) The rock is secondarily crushed by the crushing box, which can better discharge the pile hole and prevent the blockage of the slag discharge pipe;

[0086] (4) The drilling and slag discharge functions are simultaneously provided, the drilling machine has high integration, uninterrupted and synchronous drilling and slag discharge are realized, the construction process is reduced, the construction cost is saved, and the drilling construction efficiency is improved.

[0087] Although the above embodiments have been described in detail with reference to the accompanying drawings, those skilled in the art can recognize that various improvements and changes can be made to the present application without departing from the scope defined by the claims, and therefore, detailed description is not given here.

Claims

1. A rectangular deep-hole drilling rig with a haunch-type horizontal cantilever adapted to rock formations, characterized in that... The rectangular deep-hole drilling rig includes a drilling rig with a cable and a drilling machine suspended from the lower end of the cable. The drilling rig includes a rock debris handling mechanism, a multi-functional drilling assembly, and a vertical drilling device connected sequentially from top to bottom; wherein: The rock slag treatment mechanism includes a mixing device, a slag suction system, a crushing device, a grouting system, and a slag discharge system. The mixing device includes a mixing tank and a mixing mechanism mounted on the mixing tank. The slag suction port on the mixing tank is connected to the slag suction system via the crushing device, and the slag discharge port on the mixing tank is connected to the slag discharge system. The grouting system is connected to the multi-functional drilling assembly and the vertical drilling device. The multi-functional drilling assembly includes a multi-functional drilling device, a rotary hydraulic cylinder, a crank hydraulic cylinder, a horizontal hydraulic cylinder, and a multi-functional drilling reaction frame. The multi-functional drilling reaction frame has a side-opening box-shaped structure. The upper swing plate at the lower end of the multi-functional drilling device is rotatably connected to the lower swing plate on the bottom surface of the multi-functional drilling reaction frame via a connecting shaft. The rotary hydraulic cylinder is hinged to the middle or upper part of the multi-functional drilling device. The crank hydraulic cylinder is hinged to the upper swing plate via a crankshaft, and the crankshaft is located directly below the connecting shaft. The lower swing plate is slidably connected to the bottom surface of the multi-functional drilling reaction frame. The horizontal hydraulic cylinder is connected to the lower swing plate and drives the lower swing plate to move in water. The multi-functional drilling reaction frame includes a multi-functional hydraulic reaction plate, a multi-functional hydraulic upper side plate disposed at the upper end of the multi-functional hydraulic reaction plate, a multi-functional hydraulic lower side plate disposed at the lower end of the multi-functional hydraulic reaction plate, and multi-functional hydraulic side guard plates disposed on both sides of the multi-functional hydraulic reaction plate. The multi-functional hydraulic lower side plate is fixed to the vertical drilling device. The rear end of the cylinder of the rotating hydraulic cylinder is hinged to the multi-functional hydraulic reaction plate via a hinge seat. The rear end of the cylinder of the crank hydraulic cylinder is hinged to the multi-functional hydraulic reaction plate via a hinge seat. The rear end of the cylinder of the horizontal hydraulic cylinder is fixed to the multi-functional hydraulic reaction plate. The upper swing plate is semi-circular. The vertical drilling device includes several horizontally arranged cylindrical drill assemblies that form a rectangular excavation face.

2. The rectangular deep-hole drilling rig with a horizontal cantilever and haunches adapted to rock formations as described in claim 1, characterized in that... The multi-functional drilling device includes a mounting frame and a plurality of multi-functional cylindrical drilling assemblies located on the mounting frame. The mounting frame is composed of a multi-functional drilling web and multi-functional drilling wing plates located on both sides of the multi-functional drilling web. Each of the multi-functional cylindrical drilling assemblies is arranged at intervals along the vertical surface and top surface of the mounting frame.

3. A rectangular deep-hole drilling rig with a horizontal cantilever and haunches adapted to rock formations, as described in claim 2, is characterized in that... The sliding connection between the lower swing plate and the bottom surface of the multi-functional drilling reaction frame refers to the following: a T-shaped groove is provided on the lower side plate of the multi-functional hydraulic system, a T-shaped slider is provided on the lower swing plate, and the T-shaped slider on the lower swing plate is assembled in the T-shaped groove of the lower side plate of the multi-functional hydraulic system to form a sliding connection.

4. A rectangular deep-hole drilling rig with a haunch-type horizontal cantilever adapted to rock formations, as described in claim 1, is characterized in that... The drilling rig includes a vehicle-mounted platform, a steel column, a tie rod, a hinge shaft, a guide rail, a slider, a steel cantilever beam, a winch motor, and a cable support. The steel column is vertically mounted on the vehicle-mounted platform. The upper end of the tie rod is hinged to the upper end of the steel column, and the lower end is hinged to the hinge shaft fixed on the vehicle-mounted platform. The guide rail is vertically mounted and fixed along the steel column. The slider is slidably mounted on the guide rail. The steel cantilever beam is fixed to the slider. The winch motor is fixed to the steel cantilever beam, and the cable support is fixed below the steel cantilever beam. The winch motor drives the cable to move up and down in the vertical direction.

5. A rectangular deep-hole drilling rig with a haunched horizontal cantilever adapted to rock formations as described in claim 1, characterized in that... The stirring mechanism includes a main gear and several auxiliary gears that mesh with and drive the main gear. The main gear is driven to rotate by a stirring motor. A stirring main shaft extending into the stirring tank is coaxially mounted on the main gear, and stirring blades are mounted on the stirring main shaft. An auxiliary stirring shaft extending into the stirring tank is coaxially mounted on the auxiliary gear, and stirring blades are mounted on the auxiliary stirring shaft.

6. A rectangular deep-hole drilling rig with a haunched horizontal cantilever adapted to rock formations as described in claim 1, characterized in that... The vertical drilling device includes a U-shaped fork plate and a plurality of cylindrical drilling assemblies mounted on the U-shaped fork plate in a matrix arrangement. The U-shaped fork plate consists of a web plate, wing plates disposed on both sides of the web plate, and steel supports vertically welded to the web plate. Each cylindrical drilling assembly includes two cylinders, a motor driving the cylinders to rotate, a plurality of hobbing cutter assemblies spaced apart on the surface of the cylinders, and a plurality of reamer assemblies arranged between adjacent hobbing cutter assemblies. Each hobbing cutter assembly includes a hobbing cutter base and a ring of hobbing cutters fixed on the hobbing cutter base. Each reamer assembly includes a reamer base and reamers inclinedly fixed on the reamer base. The motor is fixed to the steel supports and drives the cylinders to rotate.

7. A rectangular deep-hole drilling rig with a horizontal cantilever and haunches adapted to rock formations as described in claim 1, characterized in that... The slag suction system includes a main slag suction pipe and vertical slag suction branch pipes and multi-functional slag suction branch pipes branching from the suction port of the main slag suction pipe. The suction head of the vertical slag suction branch pipe is connected to the vertical drilling device, and the suction head of the multi-functional slag suction branch pipe is connected to the multi-functional drilling device. Each suction head is equipped with a slag suction valve, and the pipe body of the multi-functional slag suction branch pipe is a telescopic pipe.

8. A rectangular deep-hole drilling rig with a horizontal cantilever and haunches adapted to rock formations, as described in claim 7, is characterized in that... The grouting system includes a main grouting pipe and a grouting pump mounted on the main grouting pipe. The lower end of the main grouting pipe branches into a vertical grouting branch pipe and a multi-functional grouting branch pipe. The nozzle of the vertical grouting branch pipe extends into the vertical drilling device near the cylindrical drill assembly, and the nozzle of the multi-functional grouting branch pipe extends into the multi-functional drill assembly near the multi-functional drilling device. Each nozzle is equipped with a grouting valve, and the pipe body of the multi-functional grouting branch pipe is a telescopic pipe.

9. A rectangular deep-hole drilling rig with a haunch-type horizontal cantilever adapted to rock formations, as described in claim 8, is characterized in that... The slag discharge system includes a slag discharge pipe and a slag discharge pump. One end of the slag discharge pump is connected to the slag discharge pipe, and the other end is connected to the slag discharge port on the mixing tank.

10. A rectangular deep-hole drilling rig with a horizontal cantilever and haunches adapted to rock formations, as described in claim 9, is characterized in that... A pipe fixing frame is provided above the mixing mechanism, and the slag suction main pipe, the grouting main pipe and the slag discharge pipe are all arranged and fixed along the pipe fixing frame.

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