Mobile drilling rig with integrated drilling and standard penetration function and drilling and standard penetration method

Abstract

The present disclosure provides a mobile drilling rig with integrated drilling and standard penetration functions and a drilling and standard penetration method. The standard penetration mechanism of the mobile drilling rig with integrated drilling and standard penetration functions is provided with a slide bar, a penetrator, a locking nut, a connector and a standard penetration hammer. The penetrator is used to insert into the soil at the installation position, and the connector is used to drive the standard penetration hammer to slide freely along the slide bar. The connector is provided with a standard penetration hook; the traction hook, the coring hook, and the standard penetration hook can all be detachably hooked, so that the winch mechanism can selectively drive the coring mechanism and the standard penetration mechanism to lift and lower through the traction rope; the power head is located on the side of the installation position of the standard penetration mechanism close to the frame, and the main traction rope is located at the outlet position of the main pulley block on the other side of the installation position away from the frame. According to the present disclosure, drilling, coring and standard penetration testing can be completed simultaneously using only one mobile drilling rig, which greatly simplifies the work process and improves labor efficiency.

Description

Technical Field

[0001] The present disclosure relates to the field of engineering drilling, and in particular to a mobile drilling rig with integrated drilling and standard penetration functions and a drilling and standard penetration method. Background Art

[0002] In the design before the construction of high-speed rail lines, highways, large storage bases and other projects, it is necessary to drill the construction site to study underground mineral deposits by geological coring, and it is also necessary to conduct standard penetration tests to obtain soil hardness at different depths. The existing technology uses a mobile drill to drill into the soil for a certain depth and then take the core. After coring, the mobile drill is moved away, and then the standard penetration tester is opened to the site for standard penetration testing. The whole process requires two machines to work in turn, resulting in a cumbersome work process and extremely low labor efficiency. Summary of the invention

[0003] The present invention provides a mobile drilling rig with integrated drilling and standard penetration functions and a drilling and standard penetration method.

[0004] Specifically, the present disclosure is achieved through the following technical solutions:

[0005] In a first aspect, an embodiment of the present disclosure provides a mobile drilling rig with integrated drilling and standard penetration functions, comprising:

[0006] frame;

[0007] A moving mechanism, used to drive the drilling rig to move;

[0008] A feed beam is arranged on the frame, and a main pulley block is arranged on the top of the feed beam;

[0009] A hoisting mechanism is provided with a hoisting drum and a main traction rope, one end of the main traction rope is connected to the hoisting drum, and the other end passes around the main pulley block to form a traction hook;

[0010] A power head is provided with a power motor and a drill rod, and the power head can be slidably arranged on the feed beam;

[0011] A coring mechanism, used to scoop soil from the hollow inside of the drill rod, wherein the coring mechanism is provided with a coring hook;

[0012] The standard penetration mechanism is provided with a slide bar, a penetrator, a locking nut, a connector and a standard penetration hammer, wherein the penetrator is used to insert into the soil at the installation position, and the connector is used to drive the standard penetration hammer to slide freely along the slide bar, wherein the connector is provided with a standard penetration hook;

[0013] The traction hook, the core-drilling hook and the standard-penetration hook can be detachably hooked, so that the hoisting mechanism can selectively drive the core-drilling mechanism and the standard-penetration mechanism to lift and lower through the traction rope;

[0014] The power head is located at one side of the installation position of the standard penetration mechanism close to the frame, and the outlet position of the main traction rope at the main pulley block is located at the other side of the installation position away from the frame.

[0015] In some embodiments, the connector includes a first hanging sleeve and a second hanging sleeve, the first hanging sleeve is a stepped structure composed of a large sleeve and a small sleeve, the standard penetration hook is arranged on the top of the large sleeve, the second hanging sleeve can be sleeved outside the small sleeve, the standard penetration hammer is hollow and can be sleeved on the second hanging sleeve (66), so that the first hanging sleeve can drive the standard penetration hammer to be lifted along the sliding rod through the second hanging sleeve.

[0016] In some embodiments, a sleeve hole and a hammer hole are respectively arranged on the small sleeve and the wall of the standard penetration hammer, a through hole is arranged on the second hanging sleeve, and a ball is arranged in the through hole, so that when the position of the sleeve hole and the through hole do not coincide with each other, the ball is simultaneously located in the hammer hole and the through hole, thereby connecting the second hanging sleeve with the standard penetration hammer, and when the position of the sleeve hole and the through hole coincide with each other, the ball enters the sleeve hole and detaches from the hammer hole, thereby causing the standard penetration hammer to detach from the second hanging sleeve and fall.

[0017] In some embodiments, a guide strip is disposed outside the small sleeve, and a guide groove is disposed inside the second hanging sleeve. The guide strip matches the guide groove and is used for circumferential positioning between the hole of the small sleeve and the through hole of the second hanging sleeve.

[0018] In some embodiments, a retaining ring is provided at the bottom of the small sleeve to resist the bottom of the second hanging sleeve, thereby preventing the second hanging sleeve from being separated from the small sleeve.

[0019] In some embodiments, a secondary hook is provided on the top of the standard penetration hammer, and a secondary pulley block is also provided on the feed beam. The secondary traction rope is detachably connected to the secondary hook after being wound around the secondary pulley block.

[0020] In some embodiments, the power head is connected to the feed beam through a conversion mechanism, so that the power head can be converted between a working position and a rest position through the conversion mechanism, and the working position coincides with the installation position of the penetrator.

[0021] In some embodiments, a clamping mechanism is also included for clamping the drill rod during drilling work and clamping the penetrator during standard penetration work.

[0022] In some embodiments, the trace between the main traction rope and the mark-through hook portion forms an angle of 3-12 degrees with the vertical direction.

[0023] In a second aspect, an embodiment of the present disclosure provides a standard penetration drilling method, using the mobile drilling rig with integrated standard penetration drilling function of the first aspect, wherein during the process of pulling up the standard penetration hammer by the auxiliary traction rope to restore the connection between the standard penetration hammer and the second hanging sleeve, the main traction rope is used to pull up the first hanging sleeve in a pulsed manner.

[0024] According to the disclosed embodiment, a standard penetration hook portion matching with the traction hook portion of the drilling rig is provided on the standard penetration mechanism, so that the drilling rig drills into the soil to a certain depth, and the traction hook portion of the drilling rig is connected with the coring hook portion and drives the coring mechanism to operate coring, and after coring, the coring hook portion is disengaged from the traction hook portion, and then the standard penetration hook portion is directly connected to the traction hook portion, so that one mobile drilling rig can be used to complete the drilling, coring and standard penetration testing work at the same time, which greatly simplifies the work process and improves labor efficiency; in order to avoid safety hazards caused by impact during the standard penetration process, the outlet position of the main traction rope forming the traction hook portion from the main pulley block is set to a side away from the frame relative to the standard penetration mechanism, so that the main traction rope provides a pulling force to the standard penetration mechanism in a direction away from the frame, thereby avoiding the standard penetration mechanism from tipping over and hitting the drilling rig due to impact.

[0025] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0027] Figure 1 is a schematic diagram from a first perspective of a mobile drilling rig with integrated drilling and standard penetration functions in one embodiment of the present disclosure;

[0028] Figure 2 It is a second perspective of a mobile drilling rig with integrated drilling and standard penetration function in one embodiment of the present disclosure;

[0029] Figure 3 is a side view of a mobile drilling rig with integrated drilling and standard penetration functions in one embodiment of the present disclosure;

[0030] Figure 4 is a schematic diagram of a standard penetration mechanism in an embodiment of the present disclosure;

[0031] Figure 5 yes Figure 4 A partial enlarged view of point A in the middle.

[0032] Reference numerals:

[0033] 10: rack;

[0034] 20: mobile mechanism;

[0035] 30: feed beam; 31: main pulley block; 32: auxiliary pulley block;

[0036] 40: winch mechanism; 41: main traction rope; 42: auxiliary traction rope;

[0037] 50: power head;

[0038] 60: standard penetration mechanism; 61: slide bar; 62: penetrator; 63: locking nut; 64: standard penetration hammer; 641: auxiliary hook; 65: first hanging sleeve; 651: standard penetration hook; 652: sleeve hole; 653: guide strip; 654: retaining ring; 66: second hanging sleeve; 661: through hole; 662: guide groove;

[0039] 70: Clamping mechanism. DETAILED DESCRIPTION

[0040] The present disclosure will now be discussed with reference to several embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0041] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to"; the terms "embodiment" and "one embodiment" are to be interpreted as "at least one embodiment"; the term "another embodiment" is to be interpreted as "at least one other embodiment"; the terms "first", "second", etc. may refer to different or the same objects; the term "setting" is not limited to direct connection or indirect connection, nor is it limited to a specific connection method. Other explicit and implicit definitions may also be included below.

[0042] In the following description, some specific numerical values ​​or numerical ranges may be involved. It should be understood that these numerical values ​​and numerical ranges are merely exemplary, which may be helpful in putting the idea of ​​the present disclosure into practice. However, the description of these examples is not intended to limit the scope of the present disclosure in any way. According to specific application scenarios and requirements, these numerical values ​​or numerical ranges can be set separately.

[0043] As mentioned above, the drilling, coring and standard penetration processes in the prior art require at least two machines to work in turn, resulting in a cumbersome work process and low labor efficiency. The mobile drilling rig with integrated drilling and standard penetration functions and the drilling and standard penetration method proposed in the embodiments of the present disclosure at least partially solve the above problems. Figures 1 to 5 The structure and working principle of a mobile drilling rig with integrated drilling and standard penetration functions according to an exemplary embodiment of the present disclosure are described below. Figure 1-3As shown, the mobile drilling rig with integrated drilling and standard penetration functions of the embodiment of the present disclosure generally includes a frame 10, a moving mechanism 20, a feed beam 30, a winch mechanism 40, a power head 50, a coring mechanism and a standard penetration mechanism 60. Those skilled in the art can understand that the mobile drilling rig also has conventional functional components, exemplarily including an engine, a mud pool, a clean water pool, etc., but these components are not strongly related to the concept of the present disclosure and are not described in detail herein. Among them, the frame 10 is used to carry the various functional components of the drilling rig. The frame 10 is set on the mobile mechanism 20, and the drilling rig is driven to move as a whole through the mobile mechanism 20. Exemplarily, the mobile mechanism 20 can be a crawler, a driving wheel or other mechanism; the winch mechanism 40 is used to tighten or release the traction rope, the feed beam 30 can be retracted to change the position of the pulley group set thereon, and in addition, a power head 50 is also provided on the feed beam 30; the power head 50 can move along the feed beam 30 and drive the drill rod to rotate to drill into the soil; the coring mechanism is used to extract geological materials deep into the borehole, and the standard penetration mechanism 60 is used to drop from a preset height to hit the ground to test the hardness of the soil.

[0044] Specifically, at least one main pulley group 31 is provided on the feed beam 30 for winding the traction rope. The main pulley group 31 can be located at the top of the feed beam 30 to ensure that the traction rope can achieve the maximum lifting stroke. It can also be set a distance below the top of the feed beam 30 and located at the midpoint between the two supporting points of the feed beam 30 on the basis of meeting the stroke requirements. The specific function will be further described below.

[0045] Specifically, the hoisting mechanism 40 is provided with a hoisting drum, a main traction rope 41 and an auxiliary traction rope 42. The hoisting drum is installed on the frame 10. At least one end of the main traction rope 41 is connected to the hoisting drum, and the other end of the main traction rope is passed around the main pulley block 31 to form a traction hook for connecting with the coring mechanism and the standard penetration mechanism 60. The auxiliary traction rope 42 can be connected to the hoisting drum or can be pulled by the operator manually.

[0046] Specifically, the power head 50 includes a power motor and a drill rod, and the power motor drives the drill rod to rotate through a reduction mechanism. The power head 50 is slidably connected to the feed beam 30 through a base, and a conversion mechanism is also provided on the base to drive the power head 50 to switch between a working position and a resting position. The working position refers to a horizontal position where the drill rod is aligned with the soil for drilling, and the resting position refers to a horizontal position offset relative to the drilling position. A penetrometer 62 is provided at the working position to temporarily clamp the drill rod when loading and unloading the drill rod during the drilling process.

[0047] Specifically, the coring mechanism is used to put the core into the borehole and scoop out the soil from the hollow of the drill rod ( Figure 1-5The coring mechanism is not shown in the figure, and a coring hook is provided on the top of the coring mechanism for connecting with the traction hook of the main traction rope 41, and the coring mechanism is driven to be lowered and raised through the main traction rope 41.

[0048] The main innovative contribution of the present disclosure is that coring and standard penetration operations are integrated on a mobile drilling rig. The technical concept of integrating different functions together needs to face two problems, namely, how to maximize the function of the existing structure while keeping the existing structure as unchanged as possible during the integration process, and how to avoid conflicts between new functions and the existing structure.

[0049] In order to maximize the structural functions of the existing hoisting mechanism 40 and the feed beam 30, in one embodiment, the standard penetration mechanism 60 includes a slide bar 61, a penetrator 62, a locking nut 63, a connector and a standard penetration hammer 64. The penetrator 62 is used to insert into the soil at the installation position, and the connector is used to drive the standard penetration hammer 64 to slide freely along the slide bar 61. The connector is provided with a standard penetration hook portion 651. The standard penetration hook portion 651 should be configured to be the same or similar to the core sampling hook portion, at least to ensure that the traction hook portion can be easily disassembled and connected to both, so that only the same main traction rope 41 can be used, that is, after raising and lowering the coring mechanism, the standard penetration mechanism 60 can also be raised and lowered.

[0050] In order to avoid conflicts between the new function and the existing structure, during the design and trial process, the inventors found that the impact force generated by the falling hammer action of the standard penetration mechanism 60 could easily lead to the tipping over accident of the standard penetration mechanism 60 due to the unstable installation of the penetrometer 62. If the standard penetration mechanism 60 hits the operator or the functional components of the drilling rig, it will cause serious personal and property losses.

[0051] The inventor attempts to control the dumping direction of the standard penetration mechanism 60 through the existing drilling rig traction structure. In one embodiment, Figure 3 As shown, the winding and outlet point of the main traction rope 41 at the main sliding wheel is located outside the installation position of the standard penetration mechanism 60 in the horizontal direction (the left side in the figure), so that the line trace of the main traction rope 41 between the winding and outlet point of the main sliding wheel and the connection point of the standard penetration hook part 651 is inclined, so that if the standard penetration mechanism 60 falls, the main traction rope 41 constitutes an outward pulling force component on the standard penetration mechanism 60, which prompts the standard penetration mechanism 60 to only fall away from the main body of the drilling rig, avoiding the risk of accidents.

[0052] In one embodiment, the inventors have calculated and verified in tests based on the size and weight of the mechanism, and the angle a formed between the aforementioned trace and the vertical direction perpendicular to the horizontal direction should be controlled within the range of 3-12 degrees (the dotted line in the figure indicates the "vertical direction"). The inventors have found that if the angle a is too small, the precise control of the tipping direction of the standard penetration mechanism 60 cannot be guaranteed. If the angle a is too large, the main traction rope 41 will pull and tip the standard penetration mechanism 60 every time it lifts the standard penetration mechanism 60, and the requirements of the normal drop hammer test of the standard penetration mechanism 60 cannot be met.

[0053] In one embodiment, Figure 4 and 5 As shown, the connector can be replaced by a first hanging sleeve 65 and a second hanging sleeve 66. The first hanging sleeve 65 is composed of a large sleeve and a small sleeve to form a stepped structure. The second hanging sleeve 66 can be sleeved outside the small sleeve. The standard penetration hammer 64 is hollow and can be sleeved on the second hanging sleeve 66, thereby ensuring that the standard penetration hammer 64, the second hanging sleeve 66 and the small sleeve of the first hanging sleeve 65 can be nested in sequence.

[0054] The standard penetration hook 651 is arranged on the top of the large sleeve. In order to smoothly realize the drop hammer test function of the standard penetration mechanism 60 by utilizing the traction effect of the main traction rope 41, in one embodiment, a sleeve hole 652 is arranged on the small sleeve, and a hammer hole (not shown in the figure) is arranged on the wall of the standard penetration hammer 64, wherein the sleeve hole 652 and the hammer hole can be countersunk holes or through holes 661. A through hole 661 is arranged on the second hanging sleeve 66, and a ball is arranged in the through hole 661. When the sleeve hole 652, the through hole 661 and the hammer hole overlap each other, the ball can be used to transmit force between the small sleeve, the second hanging sleeve 66 and the standard penetration hammer 64.

[0055] To avoid circumferential misalignment between the small sleeve and the second hanging sleeve 66, in one embodiment, a guide strip 653 is provided outside the small sleeve, and a guide groove 662 is provided inside the second hanging sleeve 66. The guide strip 653 is embedded in the guide groove 662, and the small sleeve and the second hanging sleeve 66 are positioned circumferentially in advance.

[0056] In one embodiment, a retaining ring 654 is provided at the bottom of the small sleeve to resist the bottom of the second hanging sleeve 66, thereby preventing the second hanging sleeve 66 from being separated from the small sleeve. Specifically, the second hanging sleeve 66 is sleeved outside the small sleeve of the first hanging sleeve 65, and the axial distance between the retaining ring 654 and the large sleeve step is greater than the axial height of the second hanging sleeve 66, so that the second hanging sleeve 66 can remain sleeved outside the small sleeve and can move axially within a certain distance relative to the small sleeve. The position where the bottom of the second hanging sleeve 66 abuts against the retaining ring 654 is defined as a "low position", and the position where the top of the second hanging sleeve 66 abuts against the large sleeve step is defined as a "high position". At the beginning of the standard penetration, the standard penetration hammer 64, the second hanging sleeve 66 and the small sleeve are set together, the main traction rope 41 is connected to the standard penetration hook part 651 and starts to pull up, at this time, the hammer hole and the through hole 661 coincide, the second hanging sleeve 66 is in the "low position", and under the tight action of the small sleeve wall, the ball is pushed to be located between the hammer hole and the through hole 661. At this time, the small sleeve drives the standard penetration hammer 64 to rise with the help of the second hanging sleeve 66.

[0057] The main traction rope 41 continues to pull up until the top of the large sleeve collides with the locking nut 63. At this moment, the first hanging sleeve 65 stops, and the second hanging sleeve 66 continues to move upward to the "high position" under the action of inertia. At this time, the through hole 661 coincides with the sleeve hole 652, and the spring arranged in the hammer hole pushes the ball out of the hammer hole and partially enters the sleeve hole 652, causing the standard penetration hammer 64 to fall and complete the test.

[0058] In one embodiment, a secondary hook portion 641 is further provided on the top of the standard penetration hammer 64, and a secondary pulley group 32 is also provided on the feed beam 30. The secondary traction rope 42 is detachably connected to the secondary hook portion 641 after being wound around the secondary pulley group 32. After a hammer drop is completed, the first hanging sleeve 65 and the second hanging sleeve 66 can be lowered, or the secondary traction rope 42 can be used to pull up the standard penetration hammer 64, or both can be operated at the same time to restore the connection between the standard penetration hammer 64 and the second hanging sleeve 66.

[0059] In one embodiment, the mobile drilling rig is also provided with a clamping mechanism 70, which is used to temporarily clamp the drill rod during drilling work, and can also temporarily clamp the penetrator 62 of the standard penetration mechanism 60 after the standard penetration mechanism 60 is installed in the soil, thereby keeping the slide bar 61 stable during the process of pulling up the standard penetration hammer 64 to prevent the standard penetration mechanism 60 from tipping over.

[0060] During the process of using the mobile drilling rig of the embodiment of the present disclosure to perform the standard penetration method, after drilling to a certain depth, a conversion mechanism is used to convert the drill rod from the working position to the rest position, thereby making room for the traction rope or the auxiliary traction rope 42 to be lowered and the coring mechanism to be pulled up to extract soil components, and then the main traction rope 41 is used to hook the standard penetration hook part 651, pull up the standard penetration hammer 64 and complete the hammer drop action.

[0061] It should be noted that in the process of the main traction rope 41 pulling up the standard penetration hammer 64, the auxiliary traction rope 42 is also connected to the auxiliary hook 641 at the same time, and the auxiliary traction rope 42 synchronously pulls up the standard penetration hammer 64 at a speed that is consistent with the speed of the main traction rope 41. The auxiliary traction rope 42 is only used to prevent the standard penetration mechanism 60 from tipping outward due to the pulling of the main traction rope 41 in extreme cases. In the process of the auxiliary traction rope 42 pulling up the standard penetration hammer 64 to restore the connection between the standard penetration hammer 64 and the second hanging sleeve 66, due to the setting position of the auxiliary pulley block 32, the auxiliary traction rope 42 is connected to the auxiliary hook 641. The auxiliary pulley 32 that is extended too long is likely to interfere with the normal operation of the main traction rope 41, making it easy for the standard penetration mechanism 60 to be pulled by the auxiliary traction rope 42 and tip over toward the main body of the drilling rig. To balance and avoid this situation, the main traction rope 41 is used to pull the first hanging sleeve 65 in a pulsed manner, that is, quickly pull it up for a distance and then lower it, and then quickly pull it up for a distance and then lower it. It has been verified through pilot testing that a good balancing effect can be achieved.

[0062] The description of the embodiments herein and any reference to directions and orientations are only for the convenience of description and are not to be construed as any limitation on the scope of protection of the present invention. The description of the preferred embodiments may involve combinations of features, which may exist independently or in combination, and the present invention is not particularly limited to the preferred embodiments. The scope of the present invention is defined by the claims.

[0063] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mobile drilling rig with integrated drilling and penetration functions, characterized in that: include: Frame (10); A moving mechanism (20) is used to drive the drilling rig to move; A feed beam (30) is arranged on the frame (10), and a main pulley block (31) is arranged on the top of the feed beam (30); A hoisting mechanism (40) is provided with a hoisting drum and a main traction rope (41), one end of the main traction rope (41) is connected to the hoisting drum, and the other end of the main traction rope (41) is passed around the main pulley block (31) to form a traction hook; A power head (50) is provided with a power motor and a drill rod, and the power head (50) is slidably arranged on the feed beam (30); A coring mechanism, used to scoop soil from the hollow inside of the drill rod, wherein the coring mechanism is provided with a coring hook; The standard penetration mechanism (60) is provided with a slide bar (61), a penetrator (62), a locking nut (63), a connector and a standard penetration hammer (64), wherein the penetrator (62) is used to be inserted into the soil at the installation position, and the connector is used to drive the standard penetration hammer (64) to slide freely along the slide bar (61), wherein the connector is provided with a standard penetration hook portion; The traction hook, the core-drilling hook and the standard-penetration hook can all be detachably hooked, so that the hoisting mechanism (40) can selectively drive the core-drilling mechanism and the standard-penetration mechanism (60) to move up and down through the main traction rope (41); The power head (50) is located on one side of the installation position of the standard penetration mechanism (60) close to the frame (10), and the outlet position of the main traction rope (41) at the main pulley block (31) is located on the other side of the installation position away from the frame (10).

2. The mobile drilling rig with integrated drilling and standard penetration function according to claim 1, characterized in that: The connector comprises a first hanging sleeve (65) and a second hanging sleeve (66), the first hanging sleeve (65) is a stepped structure composed of a large sleeve and a small sleeve, the standard penetration hook (651) is arranged on the top of the large sleeve, the second hanging sleeve (66) can be sleeved outside the small sleeve, the standard penetration hammer (64) is hollow and can be sleeved on the second hanging sleeve (66), so that the first hanging sleeve (65) can drive the standard penetration hammer (64) to be lifted along the sliding rod (61) through the second hanging sleeve (66).

3. The mobile drilling rig with integrated drilling and standard penetration function according to claim 2, characterized in that: The small sleeve and the wall of the standard penetration hammer are respectively provided with a sleeve hole (652) and a hammer hole, and the second hanging sleeve (66) is provided with a through hole (661). A ball is arranged in the through hole (661), so that when the sleeve hole (652) and the through hole (661) are not coincident, the ball is simultaneously located in the hammer hole and the through hole (661), so that the second hanging sleeve (66) is connected to the standard penetration hammer, and when the sleeve hole (652) and the through hole (661) are coincident, the ball enters the sleeve hole (652) and is separated from the hammer hole, so that the standard penetration hammer is separated from the second hanging sleeve (66) and falls.

4. The mobile drilling rig with integrated drilling and standard penetration function according to claim 3 is characterized in that: A guide strip (653) is arranged outside the small sleeve, and a guide groove (662) is arranged inside the second hanging sleeve. The guide strip (653) matches the guide groove (662) and is used for circumferential positioning between the hole of the small sleeve and the through hole of the second hanging sleeve (66).

5. The mobile drilling rig with integrated drilling and standard penetration function according to claim 4 is characterized in that: A retaining ring (654) is arranged at the bottom of the small sleeve to resist the bottom of the second hanging sleeve (66), thereby preventing the second hanging sleeve (66) from being separated from the small sleeve.

6. The mobile drilling rig with integrated drilling and standard penetration function according to claim 1, characterized in that: The top of the standard penetration hammer (64) is provided with an auxiliary hook portion (641), and the feed beam (30) is also provided with an auxiliary pulley block (32). The auxiliary traction rope is detachably connected to the auxiliary hook portion (641) after being wound around the auxiliary pulley block (32).

7. The mobile drilling rig with integrated drilling and standard penetration function according to claim 6, characterized in that: The power head (50) is connected to the feed beam via a conversion mechanism, so that the power head (50) can be converted between a working position and a resting position via the conversion mechanism, and the working position coincides with the installation position of the penetrator.

8. The mobile drilling rig with integrated drilling and standard penetration function according to claim 1, characterized in that: It also includes a clamping mechanism (70) for clamping the drill rod during drilling work and stabilizing the penetrator (62) during standard penetration work.

9. The mobile drilling rig with integrated drilling and standard penetration function according to claim 1, characterized in that: The line trace between the main traction rope (41) and the standard hook portion forms an angle of 3-12 degrees with the vertical direction.

10. A standard penetration drilling method, characterized in that: A mobile drilling rig with integrated drilling and standard penetration function as described in any one of claims 1 to 9 is used, wherein, during the process of using the auxiliary traction rope (42) to pull up the standard penetration hammer (64) to restore the connection between the standard penetration hammer (64) and the second hanging sleeve (66), the main traction rope (41) is used to pull up the first hanging sleeve (65) in a pulsed manner.

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