CN113175331B - Rapid construction equipment and method for weak surrounding rock fiber net pre-supporting structure - Google Patents
Rapid construction equipment and method for weak surrounding rock fiber net pre-supporting structure Download PDFInfo
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- CN113175331B CN113175331B CN202110367265.5A CN202110367265A CN113175331B CN 113175331 B CN113175331 B CN 113175331B CN 202110367265 A CN202110367265 A CN 202110367265A CN 113175331 B CN113175331 B CN 113175331B
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- cutting
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- 239000011435 rock Substances 0.000 title claims abstract description 75
- 238000010276 construction Methods 0.000 title claims abstract description 40
- 239000000835 fiber Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title description 9
- 238000005520 cutting process Methods 0.000 claims abstract description 78
- 238000005553 drilling Methods 0.000 claims abstract description 53
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 239000011324 bead Substances 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 5
- 239000010432 diamond Substances 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 230000001174 ascending effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
Abstract
The application relates to the technical field of tunnel or mine excavation and provides a rapid construction device and a rapid construction method for a weak surrounding rock fiber net pre-supporting structure, wherein the rapid construction device for the weak surrounding rock fiber net pre-supporting structure comprises a mobile vehicle body, a driving assembly, a sliding seat, a rope saw cutting assembly, a rotating assembly, a drilling assembly and a supporting assembly; the driving component is arranged on the movable vehicle body, and the sliding seat is arranged on the movable vehicle body in a sliding manner and is in transmission connection with the driving component; the rotating assembly is arranged at one end of the movable vehicle body, and the drilling assembly and the supporting assembly are detachably arranged on the rotating assembly. The drilling assembly is used for forming the advanced guide holes on the weak surrounding rock, so that the rope saw cutting assembly is used for cutting the weak surrounding rock to form a gap for installing the supporting assembly, the supporting assembly can play a good role in preventing collapse, water leakage and solidification of the weak surrounding rock, the fact that the weak surrounding rock below is convenient to excavate is guaranteed, and the drilling assembly has the advantages of being simple in construction, high in excavation efficiency and high in quality.
Description
Technical Field
The application belongs to the technical field of tunnel or mine excavation, and particularly relates to rapid construction equipment and method for a weak surrounding rock fiber net pre-supporting structure.
Background
The weak surrounding rock stratum has the characteristics of low strength, high water content, poor self-stabilization capability and the like, so that the situation that surrounding rock is excessively deformed or the cavity collapses is very easy to occur when the cavity excavation construction is carried out in the weak surrounding rock stratum, and the life safety of constructors is greatly endangered. In addition, the conventional tunnel excavation method mainly adopts a mine method, and the method has the outstanding problems of poor construction quality, high cost, low efficiency and the like.
When the collapse accident occurs in deep well operation or tunnel construction operation, the collapse position can be reached quickly, so that the life and property safety of personnel is guaranteed most effectively. However, because the slump is soft and prone to disturbance, it is an extremely difficult task to open a passageway through the slump. Therefore, to quickly, safely and effectively excavate a cavity, the support and excavation method and equipment for excavating the cavity are required to be improved on the basis of the traditional construction method, so that the aim of quick excavation is fulfilled.
Disclosure of Invention
The embodiment of the application aims to provide rapid construction equipment for a weak surrounding rock fiber net pre-supporting structure, so as to solve the technical problems of low excavation efficiency and difficult construction existing in the excavation method of the weak surrounding rock in the prior art.
In order to achieve the above purpose, the technical scheme adopted in the application is as follows: the rapid construction equipment for the weak surrounding rock fiber net pre-supporting structure comprises a mobile car body, a driving assembly, a sliding seat, a rope saw cutting assembly, a rotating assembly, a drilling assembly and a supporting assembly;
the driving assembly is arranged on the movable car body, the sliding seat is arranged on the movable car body in a sliding manner and is in transmission connection with the driving assembly, the rope saw cutting assembly comprises a motor and a driving wheel which are arranged on the sliding seat, a wire-running wheel arranged on the movable car body, two pushing rods detachably arranged on the rotating assembly, a cutting pinch roller arranged on the pushing rods and a cutting rope arranged on the driving wheel, the wire-running wheel and the cutting pinch roller; the rotary assembly is arranged at one end of the movable vehicle body or one end of the sliding seat, and the drilling assembly and the supporting assembly are detachably arranged on the rotary assembly.
In one embodiment, the rotating assembly includes: locate pivot on the mobile vehicle body, locate pivot on the ascending and descending board and the baffle on the ascending and descending board with adjustable position, the length direction of baffle with the length direction of ascending and descending board is mutually perpendicular, the propelling rod the drilling subassembly reaches the support subassembly is all detachable locates on the baffle, the propelling rod is the hydraulic stem.
In one embodiment, the driving assembly is a screw rod assembly, a guide rail is arranged on the movable vehicle body, and the sliding seat is in sliding connection with the guide rail and is fixedly connected with a sliding block of the screw rod assembly.
In one embodiment, the support assembly comprises two uprights and a high-strength fiber web arranged between the two uprights, and the distance between the two uprights is the same as the distance between the two pushing rods.
In one embodiment, the upright rod is a hollow rod, a plurality of through holes are formed in the upright rod, and liquid nitrogen can be filled in the upright rod.
In one embodiment, the drilling assembly comprises two electric drills spaced on the baffle plate and a screw drill rod detachably connected with each electric drill, wherein the diameter of the screw drill rod is larger than or equal to that of the pushing rod and the vertical rod.
In one embodiment, a screw rod assembly is arranged on the lifting plate, and the baffle is fixedly connected with a sliding block of the screw rod assembly; or, be equipped with first tooth-shaped groove on the lifter plate, be equipped with the second tooth-shaped groove on the baffle, first tooth-shaped groove with the meshing of second tooth-shaped groove, the baffle with the junction of lifter plate is equipped with buckle or U type bolt.
In one embodiment, the cutting cord is a diamond string bead cord.
Another object of the present application is to provide a weak surrounding rock fiber net pre-supporting structure and a rapid construction method, based on the rapid construction equipment of the weak surrounding rock fiber net pre-supporting structure, including the following steps:
s1, determining the drilling position, the drilling diameter and the drilling depth of an advanced guide hole on weak surrounding rock;
s2, installing the drilling assembly on the rotating assembly, drilling a preset position on the weak surrounding rock by using an auger of the drilling assembly so as to form an advanced guide hole, and removing slag in the advanced guide hole;
s3, taking down the drilling assembly, mounting a pushing rod of the rope saw cutting assembly on the rotating assembly, encircling a cutting rope of the rope saw cutting assembly on the driving wheel, the wire-running wheel and the cutting pinch roller, driving the driving wheel to rotate by utilizing a motor so as to enable the cutting rope to cut weak surrounding rock, and enabling the pushing rod to move into the advanced guide hole so as to enable the cutting rope to cut into the weak surrounding rock;
s4, after the cutting reaches a preset position, the pushing rod is taken down, the supporting component is installed on the rotating component, the vertical rod of the supporting component is inserted into the advanced guide hole, the high-strength fiber web of the supporting component is inserted into a slit cut by the cutting rope, and after the preset position is reached, the supporting component is taken down from the rotating component;
s5, excavating the weak surrounding rock below the supporting component.
In one embodiment, in the step S1, the aperture of the leading guide hole is 200-250mm; in the step S4, the vertical rod is a hollow rod, a through hole is arranged on the pipe wall of the vertical rod, and liquid nitrogen can be introduced into the vertical rod; in step S5, large direct auger stem having a diameter larger than that of the auger stem and the auger stem that excavates the leading pilot hole is used for excavation.
The quick construction equipment and the quick construction method for the weak surrounding rock fiber net pre-supporting structure have the beneficial effects that: the drilling assembly is used for forming the advanced guide holes on the weak surrounding rock, so that the rope saw cutting assembly is used for cutting the soft surrounding rock to form a gap for installing the supporting assembly, the supporting assembly can play a good role in preventing collapse, leakage and reinforcement on the weak surrounding rock, the soft surrounding rock below is ensured to be conveniently excavated, and the drilling assembly has the advantages of simplicity in construction, high excavation efficiency and high quality.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a first view of a quick construction device for a pre-supporting structure of a weak surrounding rock fiber net according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a support component in a quick construction device of a weak surrounding rock fiber net pre-support structure according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a second view of a rapid construction device for a weak surrounding rock fiber mesh pre-supporting structure according to an embodiment of the present application.
Wherein, each reference sign in the figure:
1. moving the vehicle body; 11. a guide rail; 2. a drive assembly; 3. a sliding seat; 4. a rope saw cutting assembly; 41. a motor; 42. a driving wheel; 43. a wiring wheel; 44. a propulsion rod; 45. cutting the pinch roller; 46. cutting the rope; 5. a rotating assembly; 51. a rotating shaft; 52. a lifting plate; 53. a baffle; 54. a buckle; 6. a drilling assembly; 61. electric drill; 62. a auger stem; 7. a support assembly; 71. a vertical rod; 72. a high strength fibrous web.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
As shown in fig. 1 to 3, a detailed description will now be given of a rapid construction apparatus for a pre-supporting structure of a weak surrounding rock fiber net according to an embodiment of the present application. The rapid construction equipment of the weak surrounding rock fiber net pre-supporting structure comprises a mobile car body 1, a driving assembly 2, a sliding seat 3, a rope saw cutting assembly 4, a rotating assembly 5, a drilling assembly 6 and a supporting assembly 7.
Wherein, the mobile car body 1 is used for supporting and moving the fast construction equipment of the weak surrounding rock fiber net pre-supporting structure to the weak surrounding rock needing to be excavated, and has the advantages of convenient movement and no installation. The mobile vehicle body 1 is in the form of a conventional truck or trolley, the specific structure of which is not described in detail here.
The driving assembly 2 is arranged on the moving vehicle body 1, the sliding seat 3 is arranged on the moving vehicle body 1 in a sliding manner and is in transmission connection with the driving assembly 2, and the driving assembly 2 is used for driving the sliding seat 3 to move and position on the moving vehicle body 1.
The rope saw cutting assembly 4 comprises a motor 41 and a driving wheel 42 which are arranged on the sliding seat 3, a wire-running wheel 43 arranged on the moving vehicle body 1, two pushing rods 44 detachably arranged on the rotating assembly 5, a cutting pinch roller 45 arranged on the pushing rods 44, and a cutting rope 46 arranged on the driving wheel 42, the wire-running wheel 43 and the cutting pinch roller 45; the motor 41 is used for driving the driving wheel 42 to rotate, so that the cutting rope 46 is driven to rotate, and the cutting rope 46 is used for cutting weak surrounding rocks, the wire-running wheel 43 is used for ensuring that the cutting rope 46 is not contacted with other components, preventing the cutting rope 46 from damaging or cutting the other components, the cutting pinch roller 45 is used for positioning the cutting rope 46 on the pushing rod 44, the pushing rod 44 is used for pushing the cutting rope 46 into the weak surrounding rocks, so that the cutting rope 46 cuts the weak surrounding rocks into a gap, and in the embodiment, the driving assembly 2 drives the sliding seat 3 to move different positions of the vehicle body 1, and the tension degree of the cutting rope 46 can be adjusted.
The rotating assembly 5 is arranged at one end of the mobile vehicle body 1 or one end of the sliding seat 3, the drilling assembly 6 and the supporting assembly 7 are detachably arranged on the rotating assembly 5, the rotating assembly 5 is used for adjusting the drilling position of the drilling assembly 6 on weak surrounding rock, the drilling position comprises information such as drilling angle, drilling height and the like, the drilling assembly 6 is used for leading a guide hole at the drilling position of the weak surrounding rock, and the leading guide hole can be used for inserting the pushing rod 44 and has a guiding function; after the cutting rope 46 completes the gap cutting on the weak surrounding rock, the supporting component 7 can be inserted into the gap, so that the supporting component 7 protects the weak surrounding rock, and the weak surrounding rock below the supporting component 7 is quickly excavated.
The quick construction equipment of weak surrounding rock fiber net pre-supporting structure provided by the embodiment of the application forms the leading guiding hole on the weak surrounding rock through the drilling component 6 to the rope saw cuts the cutting component 4 and cuts the weak surrounding rock in order to form the gap that is used for installing the supporting component 7, and the supporting component 7 can play good collapse prevention, water leakage prevention and reinforcing effect to the weak surrounding rock, guarantees that the weak surrounding rock of below is convenient to excavate, has simple construction, excavates efficiency and high quality's advantage.
As shown in fig. 1 to 3, in the present embodiment, a rotating assembly 5 is provided on a moving vehicle body 1, the rotating assembly 5 including: the device comprises a rotating shaft 51 arranged on a movable vehicle body 1, a lifting plate 52 arranged on the rotating shaft 51 and a baffle plate 53 arranged on the lifting plate 52 in an adjustable position, wherein the length direction of the baffle plate 53 is perpendicular to the length direction of the lifting plate 52, a pushing rod 44, a drilling assembly 6 and a supporting assembly 7 are detachably arranged on the baffle plate 53, and the pushing rod 44 is a hydraulic rod. Wherein, lifter plate 52 and baffle 53 are "cross" style of calligraphy structure, and pivot 51 is used for adjusting the angle between baffle 53 and the horizontal plane, and lifter plate 52 is used for adjusting the height between baffle 53 and the horizontal plane to can adjust the cutting position to weak surrounding rock. In the actual working process, when the pushing rod 44 stretches, the driving assembly 2 synchronously drives the sliding seat 3 to slide so as to ensure that the cutting rope 46 maintains a certain tension degree, thereby completing the cutting work. In this embodiment, the baffle 53 is provided with a U-shaped seat, and one end of the pushing rod 44 is inserted into the U-shaped seat, and then detachably and fixedly connected by using a bolt. Alternatively, one end of the push rod 44 is welded to a fixing plate, which is fixed to the baffle 53 by a plurality of bolts.
In other embodiments, the rotating assembly 5 is disposed on the sliding seat 3, and the rope saw cutting assembly 4 is also disposed on the sliding seat 3, so that the pushing rod 44 can be a fixed rod, and the tension of the cutting rope 46 is adjusted by the wire wheel 43, so that the pushing work of the pushing rod 44 is realized by using the driving assembly 2.
As shown in fig. 1 to 3, in the present embodiment, the driving assembly 2 is a screw assembly, and the screw assembly is of a conventional structure, and generally includes a base, a screw motor 41, a sliding block, and the like, which are not described in detail herein. The movable car body 1 is provided with a guide rail 11, and the sliding seat 3 is in sliding connection with the guide rail 11 and is fixedly connected with a sliding block of the screw rod assembly. Thus, the precise movement and precise positioning of the sliding seat 3 can be realized by utilizing the screw rod assembly, and the cutting rope 46 can be ensured to stably cut the weak surrounding rock.
As shown in fig. 1 to 3, the support assembly 7 includes two uprights 71, and a high-strength fiber web 72 or a high-strength fiber cloth provided between the two uprights 71, and the interval between the two uprights 71 is the same as the interval between the two push rods 44. Thus, after the drilling assembly 6 drills the advanced guide hole and the cutting rope 46 cuts a gap connecting the two advanced guide holes, the upright rod 71 can be inserted into the advanced guide hole, and the high-strength fiber net 72 can be inserted into the gap, so that the high-strength fiber net 72 can play a good role in preventing collapse, water and the like on weak surrounding rocks, rapid excavation is ensured under the high-strength fiber net 72, and the excavation efficiency is improved. Preferably, the vertical rod 71 is a hollow rod, a plurality of through holes are formed in the vertical rod 71, liquid nitrogen can be filled in the vertical rod 71, and weak surrounding rock can be frozen when liquid ammonia is emitted, so that the phenomenon that the weak surrounding rock cannot collapse, drip water and the like affect the excavation progress below is further guaranteed.
As shown in fig. 1 to 3, in the present embodiment, the drilling assembly 6 includes two electric drills 61 spaced apart from the baffle 53, and a auger stem 62 detachably connected to each electric drill 61, the auger stem 62 having a diameter greater than or equal to the diameters of the push rod 44 and the upright 71. The auger stem 62 is slightly larger in diameter to ensure that the push rod 44 and the upright 71 are inserted into the lead pilot hole where the auger stem 62 is drilled. The detachable connection mode of the spiral drill rod 62 and the electric drill 61 is a conventional inner hexagonal plug type connection mode, so that the detachable connection mode has the advantage of convenience in disassembly and assembly.
In one implementation of this embodiment, the lifting plate 52 is provided with a screw assembly, and the baffle 53 is fixedly connected with a sliding block of the screw assembly, so that the baffle 53 can be lifted by using the screw assembly, thereby adjusting the height of the drilling hole. In another implementation manner of this embodiment, the lifting plate 52 is provided with a first tooth-shaped groove, the baffle 53 is provided with a second tooth-shaped groove, the first tooth-shaped groove is meshed with the second tooth-shaped groove, a buckle 54 or a U-shaped bolt is arranged at the joint of the baffle 53 and the lifting plate 52, after the first tooth-shaped groove is meshed with the second tooth-shaped groove, the position of the baffle 53 fixed on the lifting plate 52 can be ensured to be firmly fixed, and the buckle 54 or the U-shaped bolt only needs to ensure that the baffle 53 cannot overturn. For example, a U-bolt is sleeved on the lifting plate 52 and then passes through the baffle plate 53, and the baffle plate 53 and the lifting plate 52 can be firmly meshed together by screwing or unscrewing a nut.
In this embodiment, the cutting rope 46 is a diamond bead rope, and the diamond bead rope has the advantages of high material utilization rate, high cutting efficiency, environmental protection and the like in the cutting process, and can effectively cut weak surrounding rock.
The embodiment of the application also provides a construction method of the rapid construction equipment of the weak surrounding rock fiber net pre-supporting structure, which is realized based on the rapid construction equipment of the weak surrounding rock fiber net pre-supporting structure and comprises the following steps:
s1, determining the drilling position, the drilling diameter and the drilling depth of an advanced guide hole on weak surrounding rock;
s2, installing the drilling assembly 6 on the rotating assembly 5, drilling a preset position on the weak surrounding rock by using a spiral drill rod 62 of the drilling assembly 6 to form an advanced guide hole, and removing slag in the advanced guide hole;
s3, taking down the drilling assembly 6, mounting a pushing rod 44 of the rope saw cutting assembly 4 on the rotating assembly 5, encircling a cutting rope 46 of the rope saw cutting assembly 4 on the driving wheel 42, the wire-running wheel 43 and the cutting pinch roller 45, driving the driving wheel 42 to rotate by utilizing the motor 41 so as to enable the cutting rope 46 to cut weak surrounding rock, and enabling the pushing rod 44 to move into the advanced guide holes so as to enable the cutting rope 46 to cut into the weak surrounding rock, so that a gap communicated with the two advanced guide holes is obtained;
s4, after the cutting reaches a preset position, the pushing rod 44 is taken down, the supporting component 7 is installed on the rotating component 5, the upright rod 71 of the supporting component 7 is inserted into the advanced guide hole, the high-strength fiber net 72 of the supporting component 7 is inserted into a gap cut by the cutting rope 46, and after the preset position is reached, the supporting component 7 is taken down from the rotating component 5;
s5, excavating the weak surrounding rock below the supporting assembly 7.
In the embodiment, in step S1, the drilling position is determined according to the excavation size of the cavity and the stability of surrounding rock, and the aperture of the advanced guide hole is 200-250mm; in the step S2, when the spiral drilling holes the leading guide holes, slag soil can be carried out, and the specific situation of weak surrounding rock can be conveniently determined by workers; in step S3, the cutting pinch roller 45 is rotatably mounted on the push rod 44 so as to be rotatable in any direction to match with the mounting of the diamond string bead rope; during the cutting process, the tension of the cutting cord 46 can be adjusted by the driving assembly 2 so as to adjust the cutting state of the cutting cord 46; in step S4, the upright rod 71 is a hollow rod, and a through hole is formed in the wall of the upright rod 71, so that liquid nitrogen can be introduced into the upright rod 71, and the liquid nitrogen is used for increasing the soil strength of the weak surrounding rock; in step S5, excavation is performed using a large diameter auger stem 62 having a diameter larger than that of the push rod 44 and an auger hole for drilling the lead pilot hole, which increases excavation efficiency.
The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.
Claims (6)
1. The rapid construction equipment of the weak surrounding rock fiber net pre-supporting structure is characterized by comprising a mobile car body (1), a driving assembly (2), a sliding seat (3), a rope saw cutting assembly (4), a rotating assembly (5), a drilling assembly (6) and a supporting assembly (7);
the rope saw cutting assembly (4) comprises a motor (41) and a driving wheel (42) which are arranged on the sliding seat (3), a wire-running wheel (43) arranged on the moving car body (1), two pushing rods (44) detachably arranged on the rotating assembly (5), a cutting pinch roller (45) arranged on the pushing rods (44) and a cutting rope (46) arranged on the driving wheel (42), the wire-running wheel (43) and the cutting pinch roller (45); the rotary assembly (5) is arranged at one end of the movable vehicle body (1) or one end of the sliding seat (3), and the drilling assembly (6) and the supporting assembly (7) are detachably arranged on the rotary assembly (5);
the rotating assembly (5) comprises: a rotating shaft (51) arranged on the movable vehicle body (1), a lifting plate (52) arranged on the rotating shaft (51) and a baffle plate (53) arranged on the lifting plate (52) with adjustable position, wherein the length direction of the baffle plate (53) is perpendicular to the length direction of the lifting plate (52); the pushing rod (44), the drilling assembly (6) and the supporting assembly (7) are detachably arranged on the baffle plate (53), and the pushing rod (44) is a hydraulic rod;
the driving assembly (2) is a screw rod assembly; the movable vehicle body (1) is provided with a guide rail (11), and the sliding seat (3) is in sliding connection with the guide rail (11) and is fixedly connected with a sliding block of the screw rod assembly;
the support assembly (7) comprises two vertical rods (71) and a high-strength fiber net (72) arranged between the two vertical rods (71); the distance between the two vertical rods (71) is the same as the distance between the two pushing rods (44);
the drilling assembly (6) comprises two electric drills (61) which are arranged on the baffle plate (53) at intervals, and a spiral drill rod (62) which is detachably connected with each electric drill (61); the diameter of the auger stem (62) is greater than or equal to the diameters of the push rod (44) and the upright (71).
2. The rapid construction equipment for a weak surrounding rock fiber web pre-support structure according to claim 1, wherein: the vertical rod (71) is a hollow rod, a plurality of through holes are formed in the vertical rod (71), and liquid nitrogen can be filled in the vertical rod (71).
3. The rapid construction equipment for a weak surrounding rock fiber web pre-support structure according to claim 2, wherein: a screw rod assembly is arranged on the lifting plate (52), and the baffle plate (53) is fixedly connected with a sliding block of the screw rod assembly; or, be equipped with first tooth-shaped groove on lifter plate (52), be equipped with the second tooth-shaped groove on baffle (53), first tooth-shaped groove with the meshing of second tooth-shaped groove, baffle (53) with the junction of lifter plate (52) is equipped with buckle (54) or U type bolt.
4. A rapid construction equipment for a weak surrounding rock fiber web pre-support structure according to any one of claims 1-3, wherein: the cutting rope (46) is a diamond string bead rope.
5. A construction method of a rapid construction device of a weak surrounding rock fiber net pre-support structure, characterized in that the rapid construction device based on the weak surrounding rock fiber net pre-support structure according to any one of claims 1-4 comprises the following steps:
s1, determining the drilling position, the drilling diameter and the drilling depth of an advanced guide hole on weak surrounding rock;
s2, installing a drilling assembly (6) on the rotating assembly (5), drilling a preset position on the weak surrounding rock by using a spiral drill rod (62) of the drilling assembly (6) to form an advanced guide hole, and removing slag in the advanced guide hole;
s3, taking down the drilling assembly (6), installing a pushing rod (44) of the rope saw cutting assembly (4) on the rotating assembly (5), encircling a cutting rope (46) of the rope saw cutting assembly (4) on the driving wheel (42), the wire-running wheel (43) and the cutting pinch roller (45), driving the driving wheel (42) to rotate by utilizing the motor (41) so as to enable the cutting rope (46) to cut weak surrounding rock, and enabling the pushing rod (44) to move into the advanced guide hole so as to enable the cutting rope (46) to cut into the weak surrounding rock;
s4, after the cutting reaches a preset position, the pushing rod (44) is taken down, the supporting component (7) is installed on the rotating component (5), the upright rod (71) of the supporting component (7) is inserted into the advanced guide hole, the high-strength fiber net (72) of the supporting component (7) is inserted into a gap cut by the cutting rope (46), and after the preset position is reached, the supporting component (7) is taken down from the rotating component (5);
s5, excavating the weak surrounding rock below the supporting component (7).
6. The construction method of the rapid construction equipment for the weak surrounding rock fiber net pre-supporting structure according to claim 5, wherein the rapid construction equipment comprises the following steps: in the step S1, the aperture of the advanced guide hole is 200-250mm; in the step S4, the vertical rod (71) is a hollow rod, a through hole is arranged on the pipe wall of the vertical rod (71), and liquid nitrogen can be introduced into the vertical rod (71); in step S5, a large direct auger stem having a diameter larger than the auger stem (44) and auger stem (62) that digs the lead pilot hole is used for digging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110367265.5A CN113175331B (en) | 2021-04-06 | 2021-04-06 | Rapid construction equipment and method for weak surrounding rock fiber net pre-supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110367265.5A CN113175331B (en) | 2021-04-06 | 2021-04-06 | Rapid construction equipment and method for weak surrounding rock fiber net pre-supporting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113175331A CN113175331A (en) | 2021-07-27 |
| CN113175331B true CN113175331B (en) | 2023-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202110367265.5A Active CN113175331B (en) | 2021-04-06 | 2021-04-06 | Rapid construction equipment and method for weak surrounding rock fiber net pre-supporting structure |
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