Rock drilling and grouting equipment based on rock permeability

Abstract

The application discloses a rock drilling and grouting equipment based on rock permeability, which comprises drill rods, a first rod body, a second rod body and a third rod body which are sequentially and detachably connected, wherein the third rod body is provided with a drill bit which rotates on the third rod body, the second rod body is provided with symmetrically distributed second and third sealing ring members, a grouting space is formed between the second and third sealing ring members and the hole wall of the drill hole, the second rod body is further provided with a grouting head which corresponds to the grouting space, and the grouting head is supplied with slurry by a slurry supply assembly; the first rod body is provided with a first sealing ring member, a permeability detection space is formed between the first sealing ring member, the second sealing ring member and the hole wall of the drill hole, and the first rod body is further provided with a water injection assembly which corresponds to the permeability detection space; the water injection assembly can be used for detecting the permeability of the rock and obtaining rock permeability parameters, thereby guiding the drilling of the drill bit and the slurry supply of the slurry supply assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grouting reinforcement, in particular to a rock drilling and grouting equipment based on rock permeability. BACKGROUND

[0002] Different types of rocks have different physical and mechanical properties, such as permeability, porosity, fracture distribution, etc. However, the traditional grouting method is often simply drilling and grouting, which cannot be adjusted according to the characteristics of the rock. This leads to poor grouting effect, which cannot fully fill the cracks and pores in the rock, and thus cannot achieve the expected reinforcement effect. In rocks with high permeability, the grouting fluid is easily lost, and in rocks with low permeability, the grouting fluid is difficult to penetrate into the rock, and thus cannot achieve the expected reinforcement effect.

[0003] Therefore, it is necessary to provide a rock drilling and grouting equipment based on rock permeability to solve the problems raised in the background. SUMMARY

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a rock drilling and grouting equipment based on rock permeability, comprising drill rods, a first rod body, a second rod body, and a third rod body connected in sequence and detachably, wherein the third rod body is provided with a drill bit rotatably arranged thereon, the second rod body is provided with second and third sealing ring members arranged symmetrically thereon, the second and third sealing ring members and the hole wall of the drill hole form a grouting space, and the second rod body is further provided with a grouting head corresponding to the grouting space, and the grouting head is supplied with grouting fluid by a grouting assembly.

[0005] The first rod body is provided with a first sealing ring member, and the first sealing ring member, the second sealing ring member, and the hole wall of the drill hole form a permeability detection space, and the first rod body is further provided with a water injection assembly corresponding to the permeability detection space.

[0006] The water injection assembly can detect the permeability of the rock and obtain the rock permeability parameters, thereby guiding the drilling of the drill bit and the grouting of the grouting assembly.

[0007] Further, as a preferred, the drill rods, the first rod body, the second rod body, and the third rod body are connected in sequence and detachably, and the third rod body is further provided with a pusher.

[0008] Further, as a preferred, the water injection assembly comprises a ring bin and a water injection head, wherein the ring bin is sleeved on the first rod body, and the ring bin is communicated with a plurality of water injection heads.

[0009] Further, preferably, two guide plates are symmetrically arranged on the ring chamber, the water injection head is arranged between the two guide plates, and a sealing bag is arranged on the ring chamber, located between the two guide plates and away from the water injection head.

[0010] Further, preferably, the slurry supply assembly can adjust the slurry according to the permeability of the rock, when the permeability of the rock is high, the slurry components with high viscosity and low permeability are adjusted to increase the residence time and filling effect of the slurry in the rock.

[0011] When the permeability of the rock is low, the slurry components with low viscosity and high permeability are adjusted so that the slurry can penetrate into the rock more easily.

[0012] Further, preferably, the slurry supply assembly comprises a mixing cylinder, a feed tank and a first stirring element, wherein the mixing cylinder is horizontally placed, the top of the mixing cylinder is communicated with a plurality of feed tanks, the first stirring element is rotatably arranged in the mixing cylinder, and the first stirring element is in the form of a cylinder.

[0013] Further, preferably, the inner surface of the first stirring element is provided with first stirring blades, which can move the slurry along the length direction of the mixing cylinder when the first stirring element rotates, and the length of the first stirring element is slightly smaller than the length of the mixing cylinder.

[0014] Further, preferably, an arm body is slidably arranged in the mixing cylinder, one side of the arm body is rotatably provided with a second stirring element, and the arm body is driven and adjusted by an adjusting mechanism.

[0015] Further, preferably, the second stirring element comprises an inner ring, an outer ring and a partition plate, the outer ring is sleeved outside the inner ring, a plurality of partition plates are fixed between the inner ring and the outer ring, a shaft body is connected to the inner side of the inner ring by a rod body, the shaft body is rotatably arranged in the arm body, and the inner surface of the inner ring is also provided with second stirring blades, which can move the slurry along the length direction of the mixing cylinder when the second stirring element rotates.

[0016] Further, preferably, a sliding plate is slidably arranged between the inner ring, the outer ring and the adjacent two partition plates.

[0017] Compared with the prior art, the rock drilling and grouting equipment based on rock permeability has the following advantages:

[0018] In the embodiment of the present application, the water injection assembly is integrated on the drill rod, through which the rock permeability can be detected and rock permeability parameters can be obtained, thereby guiding the drilling of the drill bit and the slurry supply of the slurry supply assembly. By adjusting the composition and concentration of the grouting fluid, the grouting effect can be improved, the cracks and pores in the rock can be fully filled, the overall flexibility is high, the targeting is strong, the operation tool does not need to be frequently replaced, and the efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a structural schematic diagram of a rock drilling and grouting equipment based on rock permeability;

[0020] Fig. 2 It is a structural schematic diagram of a water injection assembly in a rock drilling and grouting equipment based on rock permeability;

[0021] Fig. 3 It is a structural schematic diagram of a slurry supply assembly in a rock drilling and grouting equipment based on rock permeability;

[0022] Fig. 4 It is a structural schematic diagram of a second material stirring piece in a rock drilling and grouting equipment based on rock permeability;

[0023] In the figure: 1, drill rod; 2, first rod body; 3, second rod body; 4, third rod body; 5, first sealing ring piece; 6, second sealing ring piece; 7, third sealing ring piece; 8, water injection assembly; 9, slurry supply assembly; 10, grouting head; 81, ring bin; 82, water injection head; 83, guide plate; 84, sealing bag; 91, mixing cylinder; 92, feed tank; 93, first material stirring piece; 94, adjusting mechanism; 95, second material stirring piece; 951, inner ring; 952, outer ring; 953, partition plate; 954, sliding plate. DETAILED DESCRIPTION

[0024] Embodiment: please refer to Figs. 1-4 In the embodiment of the present application, a rock drilling and grouting equipment based on rock permeability comprises drill rod 1, first rod body 2, second rod body 3 and third rod body 4 which are connected in sequence and can be disassembled, wherein the third rod body 4 is provided with a drill bit rotatingly arranged thereon, the second rod body 3 is provided with second sealing ring piece 6 and third sealing ring piece 7 which are symmetrically distributed, the second sealing ring piece 6, the third sealing ring piece 7 and the hole wall of the drill hole form a grouting space, the second rod body 3 is further provided with grouting head 10 corresponding to the grouting space, and the grouting head 10 is supplied with grouting fluid by slurry supply assembly 9;

[0025] The first rod body 2 is provided with first sealing ring piece 5, the first sealing ring piece 5, the second sealing ring piece 6 and the hole wall of the drill hole form a permeability detection space, and the first rod body 2 is further provided with water injection assembly 8 corresponding to the permeability detection space.

[0026] The water injection assembly 8 can detect the permeability of the rock and obtain the rock permeability parameters, thereby guiding the drilling of the drill bit and the slurry supply of the slurry supply assembly 9.

[0027] In the embodiment of the present application, the water injection assembly is integrated on the drill rod. The water injection assembly can detect the permeability of the rock and obtain the rock permeability parameters, thereby guiding the drilling of the drill bit and the slurry supply of the slurry supply assembly. Through this integrated design, the overall flexibility and pertinence become stronger, and frequent replacement of tools is no longer needed, thereby improving the work efficiency.

[0028] In the traditional rock exploration and drilling process, different tools are usually needed for permeability detection and drilling operation. However, this method has certain limitations, such as low work efficiency and the need for frequent tool replacement. By integrating the water injection assembly on the drill rod, the permeability detection and drilling operation can be combined together, thereby greatly improving the work efficiency.

[0029] The water injection assembly can detect the permeability of the rock and measure the rock permeability parameters. These parameters can be used as a guide for drilling and grouting work, and help to determine the optimal drilling path and slurry supply amount. By adjusting the drilling and slurry supply according to the rock permeability parameters, different geological conditions and rock types can be better dealt with, and better grouting effect can be achieved.

[0030] In the embodiment, the slurry supply assembly 9 can adjust the slurry according to the permeability of the rock. When the permeability of the rock is high, the slurry composition with high viscosity and low permeability is adjusted to increase the residence time and filling effect of the slurry in the rock;

[0031] When the permeability of the rock is low, the slurry composition with low viscosity and high permeability is adjusted so that the slurry can more easily penetrate into the rock;

[0032] That is, the slurry can be adjusted by the slurry supply assembly 9 according to the permeability of the rock, so that the permeability of the slurry can be maintained within a certain range, and the economy and stability of grouting are reasonably considered.

[0033] In the embodiment, the drill rod 1, the first rod body 2, the second rod body 3, and the third rod body 4 are sequentially connected by universal joints. The third rod body 4 is also provided with a pusher. Specifically, a hydraulic cylinder can be used as the pusher. The drilling direction of the drill bit can be changed by the pusher.

[0034] In the embodiment, the water injection assembly 8 includes a ring chamber 81 and a water injection head 82. The ring chamber 81 is sleeved on the first rod body 2, and a plurality of water injection heads 82 are connected to the ring chamber 81.

[0035] And when the permeability detection space is detected, the water pressure reaches the specified value, and is kept for 5-10 min, the water consumption Q is measured, and the unit water absorption ω is obtained; the formula is:

[0036] ω=Q / HL;

[0037] In the formula, Q is the water pressure, L / min; H is the pressure water head of the test section, m; L is the length of the test section, m;

[0038] The permeability coefficient is calculated by using the Babushkin formula or the formula derived by regarding the rock mass as an average isotropic medium.

[0039] In addition, the ring bin 81 is fixed with two symmetrical flow guides 83, the water injection head 82 is distributed between the two flow guides 83, and the ring bin 81 is also provided with a sealing bag 84, which is located between the two flow guides 83 and away from the water injection head 82.

[0040] By such setting, only part of the permeability detection space can be detected, wherein the sealing bag 84 is controlled to expand and shrink by an external hydraulic controller, and when drilling by using a drill bit, the sealing bag is controlled to shrink by the external hydraulic controller, so that the sealing bag does not affect the drilling of the drill bit, and when water injection by using the water injection head 82, the sealing bag can be selectively controlled to expand by the external hydraulic controller, so as to partially block the borehole, and the water injection head 82 can inject water in a certain direction.

[0041] In the embodiment, the slurry supply assembly 9 includes a mixing cylinder 91, a supply tank 92, and a first stirring piece 93, wherein the mixing cylinder 91 is horizontally placed, the top of the mixing cylinder 91 is communicated with a plurality of supply tanks 92, and the first stirring piece 93 is rotatably arranged in the mixing cylinder 91, and the first stirring piece 93 is a cylinder structure.

[0042] Different materials can be placed in each supply tank 92, and of course, the supply tank 92 is provided with a valve, a meter, etc., which will not be described here.

[0043] In the implementation, the mixing of the slurry in the mixing cylinder 91 can be realized by driving the first stirring piece 93 to rotate.

[0044] In order to improve the mixing effect, the inner surface of the first stirring piece 93 is distributed with first stirring blades, which can move the slurry along the length direction of the mixing cylinder 91 when the first stirring piece 93 rotates, and the length of the first stirring piece 93 is slightly smaller than the length of the mixing cylinder 91.

[0045] It needs to be explained that the first raking is a spiral blade, and the spiral blade has the functions of raking and guiding the slurry, so as to guide the slurry to move along the length direction of the mixing cylinder 91, and the specific length direction of the mixing cylinder 91 is related to the spiral direction and the rotation direction of the first raking;

[0046] The advantage of configuring the first raking as a spiral blade is to improve the mixing efficiency and effect;

[0047] Of course, the first raking does not guide all the material to move in this way, but only guides part of the slurry close to the first raking to move in this way, so as to further improve the mixing efficiency and effect, in the embodiment, an arm body is slidably arranged in the mixing cylinder 91, one side of the arm body is rotatably provided with a second raking piece 95, and the arm body is also driven and adjusted by an adjusting mechanism 94.

[0048] The second raking piece 95 includes an inner ring 951, an outer ring 952, and a partition plate 953, wherein the outer ring 952 is sleeved outside the inner ring 951, a plurality of partition plates 953 are fixed between the inner ring 951 and the outer ring 952, a shaft body is connected to the inner side of the inner ring 951 by a rod body, the shaft body is rotatably arranged in the arm body, and the inner surface of the inner ring 951 is also distributed with second raking blades, which can move the slurry along the length direction of the mixing cylinder 91 when the second raking piece 95 rotates.

[0049] Similarly, the second raking is a spiral blade, and the spiral blade has the functions of raking and guiding the slurry, so as to guide the slurry to move along the length direction of the mixing cylinder 91, and the specific length direction of the mixing cylinder 91 is related to the spiral direction and the rotation direction of the second raking;

[0050] The advantage of configuring the second raking as a spiral blade is to improve the mixing efficiency and effect;

[0051] That is, in the embodiment, the processing efficiency of the slurry can be greatly improved by configuring the first raking piece and the second raking piece, so that the slurry can be quickly provided for the grouting head 10.

[0052] As a preferred embodiment, a sliding plate 954 is slidably arranged between the inner ring 951, the outer ring 952, and the adjacent two partition plates 953.

[0053] In fact, the inner ring 951, the outer ring 952, the two adjacent partitions 953 and the sliding plate 954 can form a groove structure, which can help the pulp in the groove structure to move during the movement of the second stirring piece 95, and when the second stirring piece 95 changes direction, the opening direction of the groove structure also changes correspondingly, thereby continuing to help the pulp in the groove structure to move, improving the mixing effect of the pulp.

[0054] The above merely provides the preferred but non-restrictive embodiment of the present application, and the protection scope of the present application is not limited to this. Any person skilled in the art, according to the technical solution and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A rock drilling and grouting apparatus based on rock permeability, characterized in that: The utility model provides a drilling device, including the drill rod (1) that can be disconnected in turn, first rod body (2), second rod body (3), third rod body (4), wherein, the third rod body (4) is rotationally arranged with drill head, the second rod body (3) is provided with the second sealing ring piece (6) and third sealing ring piece (7) of symmetrical distribution, the second sealing ring piece (6), third sealing ring piece (7) and the hole wall of drilling constitute grouting space, the second rod body (3) is also provided with the grouting head (10) corresponding to grouting space, the grouting head (10) is supplied with slurry by slurry supply assembly (9); The first rod body (2) is provided with a first sealing ring piece (5), and the first sealing ring piece (5), the second sealing ring piece (6), and the hole wall of the drilling hole form a permeability detection space, and the first rod body (2) is further provided with a water injection assembly (8) corresponding to the permeability detection space. Through the water injection assembly (8), the permeability of the rock can be detected, and the permeability parameters of the rock can be obtained, thereby guiding the drilling of the drill bit and the slurry supply of the slurry supply assembly (9).

2. The rock drilling and grouting equipment based on rock permeability according to claim 1, characterized in that: The drill rod (1), the first rod body (2), the second rod body (3), and the third rod body (4) are connected in turn by universal joints, and the third rod body (4) is further provided with a pusher.

3. The rock drilling and grouting equipment based on rock permeability according to claim 1, characterized in that: The water injection assembly (8) includes a ring bin (81) and a water injection head (82), wherein the ring bin (81) is sleeved on the first rod body (2), and a plurality of water injection heads (82) are communicated on the ring bin (81).

4. The rock drilling and grouting equipment based on rock permeability according to claim 3, characterized in that: Two symmetrical guide plates (83) are fixed on the ring bin (81), the water injection heads (82) are distributed between the two guide plates (83), and a sealing capsule (84) is further arranged on the ring bin (81), the sealing capsule (84) is located between the two guide plates (83) and away from the water injection heads (82).

5. The rock drilling and grouting equipment based on rock permeability according to claim 1, characterized in that: The slurry supply assembly (9) can adjust the slurry according to the permeability of the rock, when the permeability of the rock is high, the slurry composition with high viscosity and low permeability is adjusted to increase the residence time and filling effect of the slurry in the rock; When the permeability of the rock is low, the slurry composition with low viscosity and high permeability is adjusted so that the slurry can penetrate into the rock more easily.

6. The rock drilling and grouting equipment based on rock permeability according to claim 1, characterized in that: The slurry supply assembly (9) includes a mixing cylinder (91), a feed tank (92), and a first stirring element (93), wherein the mixing cylinder (91) is horizontally placed, a plurality of feed tanks (92) are communicated at the top of the mixing cylinder (91), and a first stirring element (93) is rotationally arranged in the mixing cylinder (91), and the first stirring element (93) is a cylinder structure.

7. The rock drilling and grouting equipment based on rock permeability according to claim 6, characterized in that: The inner surface of the first stirring element (93) is distributed with first stirring blades, which can move the slurry along the length direction of the mixing cylinder (91) when the first stirring element (93) rotates, and the length of the first stirring element (93) is slightly smaller than the length of the mixing cylinder (91).

8. The rock drilling and grouting equipment based on rock permeability according to claim 6, characterized in that: An arm body is slidably arranged in the mixing cylinder (91), a second stirring element (95) is rotationally arranged on one side of the arm body, and the arm body is further driven and adjusted by an adjusting mechanism (94).

9. The rock drilling and grouting equipment based on rock permeability according to claim 8, characterized in that: The second stirring member (95) comprises an inner ring (951), an outer ring (952) and a partition plate (953), wherein the outer ring (952) is sleeved outside the inner ring (951), a plurality of partition plates (953) are fixed between the inner ring (951) and the outer ring (952), the inner side of the inner ring (951) is connected with a shaft body in the form of a rod body, the shaft body is rotationally arranged in the arm body, and the inner surface of the inner ring (951) is also distributed with second stirring blades, which can move the slurry along the length direction of the mixing cylinder (91) when the second stirring member (95) rotates.

10. The rock drilling and grouting equipment based on rock permeability according to claim 9, characterized in that: A sliding plate (954) is slidingly arranged between the inner ring (951), the outer ring (952) and the adjacent two partition plates (953).

Images