Rotary drilling rig and method of construction thereof

Abstract

The application discloses a rotary drilling rig and a construction method thereof. The rotary drilling rig comprises a chassis, a drill mast, a vibration assembly and a pressurizing system. The drill mast is connected to the chassis. The vibration assembly comprises a vibration hammer and a tool connecting structure arranged on the vibration hammer. The vibration hammer is slidably connected to the drill mast in a lifting manner. The pressurizing system is connected between the drill mast and the vibration hammer to drive the vibration hammer to lift. When a casing is buried, the tool connecting structure is used to connect a casing to be buried. The pressurizing system is used to press down the casing. The vibration hammer is used to drive the casing to vibrate at a high frequency. The vertical vibration of the casing is transmitted to the casing, so that the soil structure around the casing changes and the strength is reduced. The soil around the casing is liquefied, the frictional resistance between the side of the casing and the soil is reduced, the casing is sunk into the soil by the gravity of the casing, the gravity of the vibration hammer and the pressurizing force of the drilling rig downward, the resistance in the process of burying the casing is reduced, the functions of quickly vibrating the casing into the soil and pulling out the casing are realized, and the burying efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drilling machines, in particular to a rotary drilling machine and a construction method thereof. BACKGROUND

[0002] The rotary drilling machine is a pile foundation hole forming construction equipment, which has the characteristics of fast hole forming speed, good mobility, high construction efficiency and less pollution. The rotary drilling machine needs to bury a casing at the hole opening during construction to prevent hole collapse and diameter reduction.

[0003] The commonly used casing burying method includes spinning method, which usually uses a pipe rolling machine, a full-rotation casing drill, or a casing driver driven by a power head to drive the casing to roll forward and backward, and uses the pressure system of the rotary drilling machine to cut into the soil. When the casing is lowered, the resistance to the casing increases, affecting the casing burying efficiency.

[0004] Therefore, how to improve the casing burying efficiency is a technical problem to be solved by those skilled in the art at present. SUMMARY

[0005] Therefore, the present application aims to provide a rotary drilling machine that can improve the casing burying efficiency. Another object of the present application is to provide a rotary drilling machine construction method using the above rotary drilling machine, which has high casing burying efficiency.

[0006] To achieve the above objects, the present application provides the following technical solutions:

[0007] A rotary drilling machine comprises a chassis, a drill mast, a vibration assembly and a pressure system. The drill mast is connected to the chassis. The vibration assembly comprises a vibration hammer and a tool connecting structure arranged on the vibration hammer. The vibration hammer is slidably connected to the drill mast in a lifting manner. The pressure system is connected between the drill mast and the vibration hammer to drive the vibration hammer to lift.

[0008] Preferably, the drill mast is connected to the chassis through a position adjusting mechanism. A plumb sensor is arranged on the drill mast. The plumb sensor and the position adjusting mechanism are both communicatively connected to a control device. The control device is used to control the position adjusting mechanism to operate according to the detection result of the plumb sensor, so as to adjust the angle and position of the drill mast.

[0009] Preferably, a drill mast leg capable of extending and retracting parallel to the drill mast is arranged at the bottom end of the drill mast.

[0010] Preferably, the vibration hammer is a hydraulic vibration hammer.

[0011] Preferably, a linear guide rail extending in the lifting direction is fixedly arranged on the drill mast. A sliding carriage is slidably connected to the linear guide rail. The vibration hammer is fixed to the sliding carriage. The pressure system is connected to the sliding carriage.

[0012] Preferably, the tool through hole is arranged through the vibration hammer along the lifting direction.

[0013] Preferably, the tool connecting structure comprises at least two pile clamps arranged in sequence around a preset center line, the preset center line extends along the lifting direction, and the pile clamps can be telescoped towards or away from the preset center line.

[0014] Preferably, the pressurizing system comprises a winch pressurizing system, the winch pressurizing system comprises a multiple ratio winding rope goose head arranged at the top of the drill mast and a steel wire rope arranged in a multiple ratio winding rope mode at the multiple ratio winding rope goose head, and the steel wire rope is connected to the vibration hammer.

[0015] Preferably, the method further comprises a power head assembly, the power head assembly comprises a power head and a drilling tool connected to the power head; and the power head assembly and the vibration assembly are alternately connected to the drill mast.

[0016] A rotary drilling rig construction method, the rotary drilling rig is applied, and the construction method comprises the following steps:

[0017] Adjusting the perpendicularity of the drill mast;

[0018] Hoisting the pile casing;

[0019] Controlling the tool connecting structure to be fixedly connected to the middle part of the pile casing;

[0020] Starting the pressurizing system and the vibration hammer installed in the rotary drilling rig, so that the pile casing is lowered into the soil by a preset vibration stroke;

[0021] Judging whether the pile casing is lowered into position, if yes, controlling the rotary drilling rig to stop running, otherwise, controlling the tool connecting structure to be loosened from the pile casing, controlling the vibration hammer to be lifted by a preset adjustment distance, controlling the tool connecting structure to be fixedly connected to the pile casing, and repeating the steps of starting the pressurizing system and the vibration hammer.

[0022] The rotary drilling rig provided by the application comprises a chassis, a drill mast, a vibration assembly and a pressurizing system; the drill mast is connected to the chassis, the vibration assembly comprises a vibration hammer and a tool connecting structure arranged on the vibration hammer, the vibration hammer is slidably connected to the drill mast in a lifting manner; and the pressurizing system is connected between the drill mast and the vibration hammer to drive the vibration hammer to lift.

[0023] The vibratory hammer is connected to the drill mast and can move smoothly under the drive of the chassis, facilitating travel and transportation, and making it easy to align with the hole during operation. Guided by the drill mast, the vibratory hammer improves the verticality of the casing. During casing installation, a tool connection structure is used to connect the casing to be installed. A pressurization system is used to press the casing down, and the vibratory hammer drives the casing to vibrate at high frequency. This high-frequency vibration is transmitted to the casing, causing changes in the soil structure around it, reducing its strength, and causing soil liquefaction. This reduces the frictional resistance between the casing side and the soil. Combined with the weight of the casing, the weight of the vibratory hammer, and the downward pressure of the drilling rig, the casing is sunk into the soil. This reduces resistance during casing installation, enabling rapid casing insertion and extraction, thus improving installation efficiency.

[0024] The rotary drilling rig construction method using the above-mentioned rotary drilling rig provided by the present invention has a high efficiency in casing installation. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a structural diagram of the rotary drilling rig provided by the present invention in the state of having the vibration assembly installed;

[0027] Figure 2 for Figure 1 A schematic diagram of a rotary drilling rig lifting the casing.

[0028] Figure 3 for Figure 1 A schematic diagram of a rotary drilling rig when the casing begins to press down;

[0029] Figure 4 for Figure 1 A schematic diagram of a rotary drilling rig after the casing has been pressed down for a period of time;

[0030] Figure 5 for Figure 1 A schematic diagram of a rotary drilling rig when the casing is pressed down;

[0031] Figure 6 for Figure 1 A schematic diagram of a rotary drilling rig after the casing has been pressed down and the rotary drilling rig has been removed.

[0032] Figure 7 This is a structural diagram of the rotary drilling rig provided by the present invention in the state of having the power head assembly installed.

[0033] Reference signs:

[0034] Chassis 1, drill mast leg 2, casing 3, pile clamp 4, vibration hammer 5, carriage 6, pressurization system 7, multi-magnification rope winding goose head 8, vertical adjustment sensor 9, drill mast 10, power head 11, drill bit 12, drill bucket 13, position adjustment mechanism 14. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0036] The core of the present application is to provide a rotary drilling rig, which can improve the casing embedding efficiency. Another core of the present application is to provide a rotary drilling rig construction method applying the rotary drilling rig, which has a higher casing embedding efficiency.

[0037] Specific embodiment one of the rotary drilling rig provided by the present application is described below with reference to Figures 1 to 6 , which comprises a chassis 1, a drill mast 10, a vibration assembly and a pressurization system 7.

[0038] The drill mast 10 is connected to the chassis 1, and the chassis 1 is specifically a tracked walking chassis.

[0039] The vibration assembly comprises a vibration hammer 5 and a tool connecting structure arranged on the vibration hammer 5. The tool connecting structure is used to fixedly connect a selected tool to the vibration hammer 5. In this embodiment, the tool is a casing 3, specifically a steel casing, which can be used not only for hole collapse prevention, but also as a prefabricated steel pile, a prestressed concrete pipe pile and other tools. The vibration hammer 5 is connected to the drill mast 10 in a sliding manner. The vibration hammer 5 is specifically an electric vibration hammer 5 or a hydraulic vibration pile hammer.

[0040] The pressurization system 7 is connected between the drill mast 10 and the vibration hammer 5 to drive the vibration hammer 5 to ascend and descend.

[0041] In this embodiment, the vibration hammer 5 is connected to the drill mast 10 and can move smoothly under the driving of the chassis 1, facilitating walking and transportation and facilitating hole alignment during work; the vibration hammer 5 is guided by the drill mast 10, which can improve the perpendicularity of the pile casing 3; when the pile casing 3 is buried, the tool connecting structure is used to connect the pile casing 3 to be buried, the pile casing 3 is pressed down by the pressing system 7, and the vertical vibration of the pile casing 3 is transmitted to the pile casing 3 by the high-frequency vibration of the vibration hammer 5, so that the soil structure around the pile casing 3 changes and the strength decreases, the soil around the pile casing 3 liquefies, the frictional resistance between the side of the pile casing 3 and the soil is reduced, and the pile casing 3 is sunk into the soil under the combined action of the gravity of the pile casing 3, the gravity of the vibration hammer 5 and the downward pressing force of the drilling machine, which can reduce the resistance during the burying of the pile casing 3, realize the functions of quickly vibrating the pile casing 3 and pulling out the pile casing 3, and improve the burying efficiency.

[0042] Further, the drill mast 10 is connected to the chassis 1 through a position adjusting mechanism 14, which is optionally a parallelogram mechanism composed of oil cylinders. The drill mast 10 is provided with a verticality adjusting sensor 9, and the verticality adjusting sensor 9 and the position adjusting mechanism 14 are both communicatively connected to a control device. The control device is configured to control the position adjusting mechanism 14 to operate according to the detection result of the verticality adjusting sensor 9, so as to adjust the angle and position of the drill mast 10, and specifically to drive the drill mast 10 to translate and swing.

[0043] By adjusting the verticality of the drill mast 10 detected by the verticality adjusting sensor 9 and automatically adjusting the verticality of the drill mast 10, the verticality of the vibration hammer 5 can be correspondingly adjusted, which can solve the problem of quickly and accurately aligning the pile and ensure the perpendicularity of the pile casing 3.

[0044] Further, the bottom end of the drill mast 10 is provided with a drill mast leg 2 that can stretch out parallel to the drill mast 10. During the movement of the chassis 1, the drill mast leg 2 is retracted upward to avoid contacting the ground, so that the rotary drilling rig can move smoothly; after the drill mast 10 is adjusted in place, the drill mast leg 2 is extended to support on the ground, which can improve the stability of the drill mast 10 during construction.

[0045] Further, a linear guide rail extending in the lifting direction is fixedly arranged on the drill mast 10, a carriage 6 is slidingly connected to the linear guide rail, the vibration hammer 5 is fixed to the carriage 6, and the pressing system 7 is connected to the carriage 6. The linear guide rail and the carriage 6 are used to connect the vibration hammer 5 to the drill mast 10, and the pressing system 7 drives the carriage 6 to drive the vibration hammer 5 and the pile clamp 4 to slide up and down along the linear guide rail, which can improve the stability of the vibration hammer 5 sliding.

[0046] Further, a tool through hole is provided in the vibration hammer 5 in the lifting direction. Through the provision of the tool through hole, when the pile casing 3 is installed, the pile casing 3 can pass through the tool through hole, such as a pile casing lifting tool, so that the vibration hammer 5 can be used to drive the pile casing 3 to vibrate vertically, which can improve the efficiency of installing the pile casing 3. Figure 1As shown, the middle part of the casing 3 is located in the tool through hole, and the upper and lower ends of the casing 3 respectively extend out of the tool through hole. Compared with the vibration hammer 5 connected to the top of the casing 3, since the casing 3 in this embodiment can be connected to the vibration hammer 5 in the middle, the eccentric load condition of the casing 3 in vibration can be reduced, and the perpendicularity of the casing 3 can be easily controlled. In addition, the casing 3 extends into the vibration hammer 5, which can avoid the damage caused by the loosening of the tool connection structure and the tilting of the casing 3, and can improve the safety in use.

[0047] Further, the tool connection structure comprises at least two pile clamps 4 arranged in sequence around a preset center line, and the preset center line extends along the lifting direction. The pile clamp 4 can be telescopic towards or away from the preset center line, and specifically perpendicular to the preset center line.

[0048] Preferably, the tool through hole is a circular hole, and the preset center line is collinear with the center line of the tool through hole. In other embodiments, the tool through hole can also be a square hole or a hole of other shapes.

[0049] Specifically, the pile clamp 4 is an oil cylinder. In other embodiments, the pile clamp 4 can also be a linear module or other driving mechanism.

[0050] Preferably, each pile clamp 4 is uniformly arranged on a preset circle with the preset center line as the center line, for example, four pile clamps 4 are uniformly arranged at intervals of 90° on the preset circle, which can effectively clamp the outer wall of the casing 3.

[0051] In this embodiment, each pile clamp 4 cooperates to form a pile holder, which laterally embraces and clamps the casing 3, so that the position of the casing 3 subjected to impact force can be adjusted along the outer wall of the casing 3, thereby reducing the deformation of the casing 3 during sinking and avoiding the breaking of the casing 3 at both ends under stress.

[0052] Further, the tool connection structure is arranged on the top surface or the bottom surface of the vibration hammer 5, which can avoid occupying the space of the tool through hole. Of course, in other embodiments, the pile clamp 4 can also be arranged on the hole wall of the tool through hole. In addition, in other embodiments, if the vibration hammer 5 is not provided with a tool through hole, the pile clamp 4 can be arranged on a fixed ring fixedly arranged on the side surface of the vibration hammer 5, and the fixed ring and the vibration hammer 5 are arranged side by side in the vertical direction perpendicular to the lifting direction, and the casing 3 is vibrated by applying force from the side surface of the casing 3.

[0053] Further, the pressurizing system 7 comprises a hoist pressurizing system, which comprises a multiple ratio winding rope goose head 8 arranged at the top of the drill mast 10 and a steel wire rope arranged in a multiple ratio winding rope mode at the multiple ratio winding rope goose head 8, for example, a 4 ratio winding rope or other ratio winding rope mode. The steel wire rope is connected to the vibration hammer 5. The steel wire rope is arranged in a multiple ratio winding rope mode, has a large lifting force, can solve the problem of the pile casing 3 not being pulled out, and improves the pile casing 3 lifting efficiency. Of course, in other embodiments, the steel wire rope can also be arranged in a single rope mode.

[0054] Further, the rotary drilling rig also comprises a power head assembly, which comprises a power head 11 and a drilling tool connected to the power head 11, and the drilling tool specifically comprises a drill bit 12 and a drill bucket 13. The power head assembly and the vibration assembly can be alternately connected to the drill mast 10.

[0055] The power head assembly and the hydraulic vibration assembly can be alternately connected to the drill mast 10, so that the rotary drilling rig has two working modes, so that the drilling rig has multifunctionality and improves the utilization rate of the drilling rig. As shown in Figure 7 , in the state that the power head assembly is connected to the drill mast 10, the rotary drilling rig adopts the pile driver method to bury the pile casing 3. As shown in Figure 1 , in the state that the vibration assembly is connected to the drill mast 10, the rotary drilling rig adopts the vibration hammer pile casing method to bury the pile casing 3.

[0056] Among them, the pressurizing system 7 can also be arranged in a replaceable structure, for example, in the state that the power head assembly is connected to the drill mast 10, the multiple ratio winding rope goose head 8 can be replaced by other steel wire rope supporting structures. Alternatively, the pressurizing system 7 can also be arranged as a hydraulic system.

[0057] The rotary drilling rig in the embodiment, in the state that the vibration assembly is installed on the drill mast 10, the working principle is as follows:

[0058] Step 1: As shown in Figure 2 , the rotary drilling rig is positioned, the verticality of the drill mast 10 is adjusted through the plumb sensor 9, the drill mast 10 is adjusted to accurately align the pile position through the chassis 1 walking and the position adjusting mechanism 14, the pile casing 3 is lifted by the auxiliary hoist hook in the pressurizing system 7 and is placed into the hollow vibration hammer 5;

[0059] Step 2: As shown in Figure 3 , each pile clamp 4 clamps the outer wall of the pile casing 3, the vibration hammer 5 is started, and the pressurizing system 7 applies a downward pressurizing force to the pile casing 3, so that the pile casing 3 vibrates into the soil;

[0060] Step 3: As shown in Figure 4 , when the pile casing 3 is pressed into a section, the pile clamp 4 is loosened, the pressurizing system 7 drives the carriage 6 to move upward by a distance, and the pile clamp 4 clamps the pile casing 3 again and vibrates downward;

[0061] Step 4: As shown inFigure 5 As shown, after several vibration strokes, the casing 3 is finally completely pressed into the hole.

[0062] Step 5: as shown in the figure Figure 6 As shown, the lower casing 3 is completed, and the casing 3 can be used for soil excavation, and finally form a cast-in-place pile, or directly used as a pile body, such as a prefabricated steel pipe pile, a concrete prefabricated pipe pile, etc.

[0063] Referring to the above steps 1 to 5, the pipe pulling process is opposite to the above steps, and the upward pulling force is mainly provided by the steel wire rope in the pressurization system 7.

[0064] Obviously, the connection mode of the vibration hammer 5 and the tool can also be other settings. In a specific embodiment two, the tool through hole in the vibration hammer 5 in the embodiment one is not set, and correspondingly, the tool connection structure is a downward opening clamp, which clamps and fixes the casing 3 below the vibration hammer 5, so as to drive the top of the casing 3 to vibrate through the vibration hammer 5. Alternatively, in a specific embodiment three, the vibration hammer 5 can be provided with a C-shaped mounting groove, so that the vibration hammer 5 is semi-wrapped to surround the casing 3.

[0065] In addition to the above rotary drilling rig, the application also provides a rotary drilling rig construction method, which applies the rotary drilling rig in the above embodiment, and the casing 3 burying efficiency is higher.

[0066] The construction method comprises the following steps:

[0067] Adjust the perpendicularity of the drill mast 10;

[0068] Lifting the casing 3;

[0069] Controlling the tool connection structure to fixedly connect the middle part of the casing 3;

[0070] Starting the pressurization system 7 and the vibration hammer 5 installed in the rotary drilling rig, so that the casing 3 moves downward in the soil by a preset vibration stroke;

[0071] Judging whether the casing 3 is moved to the position, if yes, controlling the rotary drilling rig to stop running, otherwise, controlling the tool connection structure to loosen the casing 3, controlling the vibration hammer 5 to move upward by a preset adjustment distance, controlling the tool connection structure to fixedly connect the casing 3, and repeating the steps of starting the pressurization system 7 and the vibration hammer 5.

[0072] It is to be understood that where an element such as a layer, region or substrate is described as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where an element such as a layer, region or substrate is described as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. Relative terms such as "lower", "upper", "horizontal", "vertical", "above", "below", "up", "down", "top", "bottom", "left", "right", "front", "back", "side", "under" and "over" as well as derivative thereof (e.g., "horizontally", "downwardly", "upwardly", etc.) are used herein for ease of description to describe the orientation of one element relative to another element(s) as illustrated in the figures. Terms such as "attached", "affixed", "connected", "coupled", "interconnected" and similar refer to a relationship wherein structures are secured or attached to one another either directly or indirectly through intervening structures, as will be further described in more detail below. When referring to areas, regions or substrates, the term "on" means that the area, region or substrate is present on the surface of the area, region or substrate, as the terms are used in the art of semiconductor manufacturing.

[0073] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0074] Various embodiments of the application are described herein with reference to the drawings. Each embodiment is presented in terms of a method for constructing a rotary drilling rig, and each embodiment focuses on the differences from other embodiments. The same or similar parts between embodiments are cross-referenced.

[0075] The rotary drilling rig and its construction method provided by the application are described in detail above. The principles and implementation modes of the application are described by using specific examples. The above description of the embodiments is only for the purpose of helping to understand the method of the application and its core idea. It should be pointed out that, for those skilled in the art, without departing from the principles of the application, some improvements and modifications can be made to the application, and these improvements and modifications also fall within the protection scope of the claims of the application.

Claims

1. A rotary drilling rig construction method, characterized by, The application relates to a rotary drilling rig, which comprises a chassis (1), a drill mast (10), a vibration assembly and a pressurizing system (7); the drill mast (10) is connected to the chassis (1); the vibration assembly comprises a vibration hammer (5) and a tool connecting structure arranged on the vibration hammer (5); the tool connecting structure is used for fixedly connecting a casing (3) to the vibration hammer (5); and the vibration hammer (5) is slidably connected to the drill mast (10) in a lifting manner; the pressurizing system (7) is connected between the drill mast (10) and the vibration hammer (5) and is used for driving the vibration hammer (5) to lift and descend. The drill mast (10) is connected to the chassis (1) through a position adjusting mechanism (14); a plumb sensor (9) is arranged on the drill mast (10); the plumb sensor (9) and the position adjusting mechanism (14) are both communicatively connected to a control device; and the control device is used for controlling the position adjusting mechanism (14) to operate according to the detection result of the plumb sensor (9) so as to adjust the angle and position of the drill mast (10). A linear guide rail extending in the lifting direction is fixedly arranged on the drill mast (10); a sliding frame (6) is slidably connected to the linear guide rail; the vibration hammer (5) is fixed to the sliding frame (6); and the pressurizing system (7) is connected to the sliding frame (6). A tool through hole extending in the lifting direction is arranged through the vibration hammer (5); the middle part of the casing (3) is located in the tool through hole; and the upper and lower ends of the casing (3) respectively extend out of the tool through hole. The tool connecting structure comprises at least two pile clamps (4) arranged in sequence around a preset center line; the preset center line extends in the lifting direction; the pile clamps (4) can be telescoped towards or away from the preset center line; and the pile clamps (4) are oil cylinders. The construction method comprises the following steps: Adjusting the perpendicularity of the drill mast (10); Hoisting the casing (3) comprises the following steps: adjusting the perpendicularity of the drill mast (10) through the plumb sensor (9); accurately aligning the drill mast (10) with a pile position through the chassis (1) and the position adjusting mechanism (14); lowering a vice winch hook in the pressurizing system (7) to hoist the casing (3) and placing the casing (3) into the hollow vibration hammer (5); Controlling the tool connecting structure to fixedly connect the middle part of the casing (3); Starting the pressurizing system (7) and the vibration hammer (5) installed in the rotary drilling rig, so that the casing (3) moves downwards in the soil by a preset vibration stroke; Judging whether the casing (3) is moved to the position or not; if yes, controlling the rotary drilling rig to stop operating; otherwise, controlling the tool connecting structure to loosen the casing (3), controlling the vibration hammer (5) to move upwards by a preset adjusting distance, controlling the tool connecting structure to fixedly connect the casing (3), and repeating the step of starting the pressurizing system (7) and the vibration hammer (5); After the casing (3) is lowered, earth excavation is performed in the casing (3), and finally a cast-in-place pile is formed.

2. The rotary drilling rig construction method according to claim 1, characterized by, The bottom end of the drill mast (10) is provided with a drill mast supporting leg (2) capable of telescopically extending parallel to the drill mast (10).

3. The rotary drilling rig construction method according to claim 1, characterized by, The vibration hammer (5) is a hydraulic vibration hammer.

4. The rotary drilling rig construction method according to any one of claims 1 to 3, characterized by, The pressurizing system (7) comprises a hoist pressurizing system, which comprises a multiple ratio winding rope goose head (8) arranged at the top of the drill mast (10) and a steel wire rope arranged in a multiple ratio winding rope mode at the multiple ratio winding rope goose head (8), the steel wire rope being connected with the vibration hammer (5).

5. The rotary drilling rig construction method according to any one of claims 1 to 3, characterized by, Further comprising a power head assembly, which comprises a power head (11) and drilling tools connected with the power head (11); the power head assembly and the vibration assembly are alternately connected with the drill mast (10).

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