CN114215525A - Stopping device, upward jacking type vertical shaft tunneling equipment and vertical shaft construction method - Google Patents
Stopping device, upward jacking type vertical shaft tunneling equipment and vertical shaft construction method Download PDFInfo
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- CN114215525A CN114215525A CN202111524673.3A CN202111524673A CN114215525A CN 114215525 A CN114215525 A CN 114215525A CN 202111524673 A CN202111524673 A CN 202111524673A CN 114215525 A CN114215525 A CN 114215525A
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- 238000010276 construction Methods 0.000 title claims abstract description 31
- 230000005641 tunneling Effects 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 69
- 230000000670 limiting effect Effects 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D5/00—Lining shafts; Linings therefor
- E21D5/12—Accessories for making shaft linings, e.g. suspended cradles, shutterings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D3/00—Raising shafts, i.e. working upwards from the bottom
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a retaining device, upward jacking type vertical shaft tunneling equipment and a vertical shaft construction method, wherein the retaining device comprises: a rotation mechanism rotatably disposed with respect to the pipe joint; the stopping mechanism is arranged on the rotating mechanism and comprises at least two movable stopping structures which are distributed at intervals along the circumferential direction of the pipe joint and can be expanded outwards or contracted inwards, at least two fixed stopping structures are distributed on the inner side surface of the pipe joint at intervals along the circumferential direction of the pipe joint, and the fixed stopping structures are abutted against the movable stopping structures in the state that the pipe joint is retracted. The retaining device can realize the retaining and limiting of the pipe joint when the pipe joint retracts; when the pipe joint is pushed upwards, the movable retaining structure can be prevented from blocking the pipe joint from being pushed upwards, and the pipe joint can be prevented from shifting in the process of being pushed upwards; the installation of the initial structure and the assembly of the pipe joint, the jacking device and the jacking device can be provided with larger installation space before construction.
Description
Technical Field
The invention relates to the technical field of vertical shaft construction, in particular to a retaining device, upward jacking type vertical shaft tunneling equipment and a vertical shaft construction method.
Background
With the continuous promotion of urban modern construction, the construction of underground tunnel inspection wells, ventilation vertical wells, feeding wells and other vertical wells which are urgently needed by urban development, the urban pollution discharge waterlogging prevention upgrading, and the construction of sponge cities and comprehensive pipe galleries face urgent needs. However, most of the traditional shaft development and construction of urban underground space adopt the temporary ground enclosure to excavate downwards, which not only blocks traffic and influences the trip of citizens, but also destroys urban landscape and influences green ecology. In order to solve the problems, the conventional shaft construction method of upwards jacking is adopted to solve some inconveniences caused by downwards digging and chiseling a shaft from the ground.
However, in the construction of building a shaft in an existing tunnel by using the upward jacking method, the lining pipe joints need to be jacked upwards by using the jack in the construction process, but when new pipe joints are assembled, the jacked pipe joints have a tendency of sliding downwards under the action of the pressure and the dead weight of an overlying soil body due to retraction of the jack, so that water stop bars between the lining pipe joints and the main tunnel are damaged, and even water and sand gushes and leaks in severe cases.
Disclosure of Invention
The invention aims to provide a retaining device, upward jacking type shaft tunneling equipment and a shaft construction method, and aims to solve the technical problems that a water stop strip between a lining pipe joint and a main tunnel is damaged and even water and sand are gushed and leaked in serious cases due to the fact that a pipe joint jacked in a shaft construction project in an existing tunnel by an upward jacking method at present is backed off.
The above object of the present invention can be achieved by the following technical solutions:
the invention provides a retaining device, comprising: a rotation mechanism rotatably disposed with respect to the pipe joint; stopping mechanism, install in rotary mechanism is last, stopping mechanism includes two at least activity stopping structures, two at least the activity stopping structure is followed the circumference interval distribution of tube coupling, and two at least the activity stopping structure can outwards expand or inwards contract, lay two at least fixed stopping structures along its circumference interval on the medial surface of tube coupling, fixed stopping structure is in under the state that the tube coupling rolled back butt in the activity stopping is structural.
In an embodiment of the present invention, the movable retaining structure is rotatably disposed on the rotating mechanism around a horizontal axis.
In an embodiment of the present invention, the movable retaining structure is mounted on the rotating mechanism through an upright post, the movable retaining structure includes a retaining beam and a telescopic driving member, two ends of the retaining beam are respectively a connecting end and a butting end, the connecting end is hinged to the upright post, the fixed retaining structure is butted against the butting end in a state that the pipe joint is retracted, and two ends of the telescopic driving member are respectively hinged to the upright post and the retaining beam.
In an embodiment of the present invention, the fixed retaining structure is protruded on an inner side surface of the pipe joint, and the abutting end abuts against the fixed retaining structure in a horizontal state.
In an embodiment of the present invention, the fixed retaining structure includes a bolt, the inner side surface of the pipe joint is provided with a jack along a radial direction thereof, one end of the bolt is inserted into the jack, and the other end of the bolt is convexly provided on the inner side surface of the pipe joint.
In an embodiment of the present invention, the fixed retaining structure includes a bracket post, and the bracket post and the pipe joint are an integrally formed structure.
In an embodiment of the present invention, a clamping groove matched with the fixed retaining structure is disposed on the abutting end.
In an embodiment of the present invention, an outer guiding inclined surface is disposed on an end surface of the abutting end, the outer guiding inclined surface gradually inclines inwards along a vertical downward direction, the fixed retaining structure includes a groove disposed on an inner side surface of the pipe joint, an inner guiding inclined surface is disposed in the groove, and the inner guiding inclined surface is matched with the outer guiding inclined surface.
The invention also provides upward jacking type shaft tunneling equipment which comprises the retaining device, and the upward jacking type shaft tunneling equipment further comprises: the supporting device is arranged on the tunnel, and the rotating mechanism is arranged on the supporting device; the two ends of the jacking device are respectively connected with the supporting device and the pipe joint; and the tunneling device is supported at the top end of the pipe joint.
The invention also provides a construction method of the upward jacking type vertical shaft, which adopts the upward jacking type vertical shaft tunneling equipment and comprises the following steps: the rotating mechanism drives the retaining mechanism to rotate, so that the movable retaining structure and the fixed retaining structure are staggered; the jacking device drives the pipe joint to jack upwards, so that the tunneling device tunnels upwards for a preset stroke; the rotating mechanism drives the retaining mechanism to rotate, so that the movable retaining structure is opposite to the fixed retaining structure; the jacking device retracts, and the pipe joint is subjected to backstop limiting through the backstop mechanism; assembling a new pipe joint below the pipe joint at the bottommost end; and repeating the steps until the assembly of the last pipe joint is completed.
In the embodiment of the invention, the method also comprises the following steps before construction: mounting the supporting device on the tunnel, mounting the retaining device on the supporting device, and retracting at least two movable retaining structures inwards; installing a starting structure at a starting port of the shaft above the retaining device; and assembling the jacking device, the pipe joint and the tunneling device on the supporting device.
The invention has the characteristics and advantages that:
according to the retaining device, when the pipe joint retracts, the rotating mechanism drives the retaining mechanism to rotate, and the movable retaining structure is expanded outwards, so that the movable retaining structure corresponds to the fixed retaining structure on the inner side surface of the pipe joint, the fixed retaining structure is abutted against the movable retaining structure, and the retaining limit of the pipe joint is realized; when the pipe joint is pushed upwards, the rotating mechanism drives the retaining mechanism to rotate, so that the movable retaining structure is staggered with the fixed retaining structure on the inner side surface of the pipe joint, the movable retaining structure is prevented from blocking the pipe joint from being pushed upwards, and the movable retaining structure has a radial limiting effect on the pipe joint, so that the pipe joint can be prevented from being deviated in the upward pushing process; before construction, the movable stopping structure is descended to contract inwards, so that a larger installation space is provided for installation of the starting structure and assembly of the pipe joint, the jacking device and the tunneling device.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a perspective view of the retaining device according to the present embodiment of the present invention.
Fig. 2 is a perspective view of the retaining device of the present embodiment of the present invention in a state that the pipe joint is retracted.
Fig. 3 is a perspective view of the retaining device of the present embodiment of the present invention in a state that the pipe joint is pushed in.
FIG. 4 is a view showing a usage state of the retaining device according to the present embodiment of the present invention when it is retracted.
FIG. 5 is a view showing a state of use when the retaining device of the present embodiment of the present invention is expanded.
Fig. 6 is a usage state diagram of the retaining device in the embodiment of the invention in the subsequent working process.
Fig. 7 is a schematic structural diagram of the fixed retaining structure according to the embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a fixed retaining structure according to another embodiment of the present invention.
Fig. 9 is a schematic structural diagram of a retaining device according to yet another embodiment of the present invention.
In the figure:
1. a backstop mechanism; 11. a movable backstop structure; 111. a backstop beam; 1111. a connecting end; 1112. a butting end; 1113. an upper surface; 1114. an outer guide ramp; 112. a telescopic driving member; 113. a card slot; 2. a rotation mechanism; 21. rotating the base; 22. a column; 3. a support device; 4. a jacking device; 5. a tunneling device; 6. pipe joints; 61. a duct piece; 62. a jack; 63. fixing the retaining structure; 631. a bolt; 632. bracket columns; 633. a groove; 6331. an inner guide slope; 7. a tunnel; 8. the earth formation.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Implementation mode one
As shown in fig. 1, 2 and 3, the present invention provides a backstop device including: a rotation mechanism 2 rotatably provided with respect to the pipe joint 6; the stopping mechanism 1 is installed on the rotating mechanism 2, the stopping mechanism 1 comprises at least two movable stopping structures 11, the at least two movable stopping structures 11 are distributed at intervals along the circumferential direction of the pipe joint 6, the at least two movable stopping structures 11 can be expanded outwards or contracted inwards, at least two fixed stopping structures 63 are distributed on the inner side surface of the pipe joint 6 at intervals along the circumferential direction of the pipe joint, and the fixed stopping structures 63 abut against the movable stopping structures 11 in the state that the pipe joint 6 is retracted.
According to the retaining device, when the pipe joint 6 retracts, the rotating mechanism 2 drives the retaining mechanism 1 to rotate, and the movable retaining structure 11 is expanded outwards, so that the movable retaining structure 11 corresponds to the fixed retaining structure 63 on the inner side surface of the pipe joint 6, the fixed retaining structure 63 abuts against the movable retaining structure 11, and the retaining limit of the pipe joint 6 is realized; when the pipe joint 6 is pushed upwards, the rotating mechanism 2 drives the retaining mechanism 1 to rotate, so that the movable retaining structure 11 is staggered with the fixed retaining structure 63 on the inner side surface of the pipe joint 6, the movable retaining structure 11 is prevented from blocking the pipe joint 6 from being pushed upwards, the movable retaining structure 11 has a radial limiting effect on the pipe joint 6, and the pipe joint 6 can be prevented from being deviated in the upward pushing process; before construction, the movable stopping structure 11 is descended and contracted inwards, so that a larger installation space is provided for the installation of the initial structure and the assembly of the pipe joint 6, the jacking device 4 and the tunneling device 5.
In particular, as shown in fig. 4 to 6, the backstop device is located below the departure gate of the shaft. As shown in fig. 2 and 3, the tube segment 6 is formed by splicing a plurality of tube sheets 61 end to end in the circumferential direction thereof. The at least two movable retaining structures 11 can be expanded outwards until the radial dimension of the retaining mechanism 1 is equal to or slightly smaller than the radial dimension of the fixed retaining structure 63. The number of the movable retaining structures 11 can be designed according to the bearing capacity requirement of vertical load, and the load above the movable retaining structures can be borne. In this embodiment, the retaining mechanism 1 includes six movable retaining structures 11. The tube segment 6 is formed by splicing three tube sheets 61 end to end along the circumferential direction. Two fixed retaining structures 63 are provided on the inner side of each segment 61.
As shown in fig. 4, 5 and 6, before construction, the supporting device 3 is installed in the tunnel 7, the stopping device is installed on the supporting device 3 and is positioned below the starting opening of the shaft, the movable stopping structure 11 is retracted inwards to make the upper part of the supporting device 3 have larger space, the starting structure is installed at the starting opening of the shaft in the tunnel, one or more pipe joints 6 spliced and butted along the axial direction of the pipe joints are erected around the stopping mechanism 1 through the jacking device 4, the tunneling device 5 is supported on the topmost pipe joint 6, and then the jacking device 4 jacks upwards to perform construction for shaft starting. After starting, the movable retaining structure 11 is expanded outwards, the radial size of the retaining mechanism 1 is slightly smaller than the inner diameter of the pipe piece 61, the rotating mechanism 2 drives the retaining mechanism 1 to rotate, the movable retaining structure 11 corresponds to the fixed retaining structure 63, then the jacking device 4 retracts, the fixed retaining structure 63 abuts against the movable retaining structure 11, and therefore retaining and limiting of the pipe joint 6 are achieved. And then assembling the next pipe joint 6 below the pipe joint 6 at the bottommost end, then upwards jacking the pipe joint 6 through the jacking device 4, driving the retaining mechanism 1 to rotate through the rotating mechanism 2, enabling the movable retaining structure 11 and the fixed retaining structure 63 to be staggered, and repeating the steps, so that a plurality of pipe joints 6 are assembled and butted along the axial direction to form a supporting shaft, and the construction of a vertical shaft is completed. Therefore, in the construction process, at least one pipe joint 6 is positioned in the tunnel 7, namely the pipe joint 6 which is assembled but not jacked into the stratum 8 above, and the fixed stopping structure 63 positioned on at least one pipe joint 6 in the tunnel 7 is abutted with the movable stopping structure 11, so that stopping and limiting of all the pipe joints 6 above the jacking device 4 can be realized. The load above the jacking device 4 is transferred to the support device 3 below through the retaining device and further to the tunnel 7 below. In this embodiment, when the pushing device 4 retracts, the movable retaining structure 11 abuts against the fixed retaining structure 63 in the penultimate pipe joint 6. Optionally, when the jacking device 4 retracts, the movable retaining structure 11 abuts against the fixed retaining structure 63 in the bottommost pipe joint 6.
As shown in fig. 1, in the embodiment of the present invention, the movable retaining structure 11 is rotatably disposed on the rotating mechanism 2 about a horizontal axis X. The movable retaining structure 11 is positioned below the horizontal axis X, the movable retaining structure 11 rotates upwards around the horizontal axis X and expands outwards, and the radial size of the retaining mechanism 1 is increased; the movable retaining structure 11 rotates downwards around a horizontal axis X and contracts inwards, and the radial dimension of the retaining mechanism 1 is reduced. Optionally, the movable retaining structure 11 is located above the horizontal axis, the movable retaining structure 11 rotates downward around a horizontal axis to expand outward, and the radial size of the retaining mechanism 1 increases; the movable retaining structure 11 rotates upward around a horizontal axis to contract inward, and the radial dimension of the retaining mechanism 1 is reduced. Alternatively, the movable retaining structure 11 is retracted by moving radially inward of the segment 61, and the movable retaining structure 11 is expanded by moving radially outward of the segment 61.
As shown in fig. 1, 2 and 3, the movable retaining structure 11 is mounted on the rotating mechanism 2 through the upright post 22, the movable retaining structure 11 includes a retaining beam 111 and a telescopic driving member 112, two ends of the retaining beam 111 are respectively a connecting end 1111 and a abutting end 1112, the connecting end 1111 is hinged to the upright post 22, the fixed retaining structure 63 abuts against the abutting end 1112 in a state that the pipe joint 6 is retracted, and two ends of the telescopic driving member 112 are respectively hinged to the upright post 22 and the retaining beam 111. The telescopic drive 112, the upright 22 and the backstop beam 111 form a three-link structure. The telescopic driving member 112 is extended and contracted, thereby driving the retaining beam 111 to rotate around a horizontal axis. The telescopic driving member 112 provides a supporting force for the retaining beam 111 to ensure that the retaining beam 111 supports the pipe joint 6 above stably. Specifically, the rotating mechanism 2 further includes a rotatable rotating base 21, and the upright 22 is fixed on the rotating base 21.
As shown in fig. 2, 3, 7 and 8, in the embodiment of the present invention, the fixed retaining structure 63 is protruded on the inner surface of the pipe joint 6, and the contact end 1112 is in contact with the fixed retaining structure 63 in a horizontal state. Since the fixed retaining structure 63 is protruded on the inner side surface of the pipe joint 6, the fixed retaining structure 63 directly abuts downward on the movable retaining structure 11 in a retracted state. When the pipe joint 6 needs to be pushed upwards, the rotating mechanism 2 drives the retaining mechanism 1 to rotate for a certain angle, so that the fixed retaining structure 63 and the movable retaining structure 11 can be staggered without shrinkage and expansion, and the phenomenon that the construction efficiency is affected due to frequent shrinkage and expansion of the retaining mechanism 1 in the construction process is avoided. Specifically, when the retaining beam 111 rotates upward to be horizontal, the radial dimension of the retaining mechanism 1 is equal to or slightly smaller than the inner diameter of the pipe joint 6. The end surface of the abutting end 1112 gradually inclines inwards along the vertical downward direction to reduce the friction force between the end surface of the abutting end 1112 and the inner side surface of the pipe joint 6, so as to be beneficial to the upward jacking of the pipe joint 6.
As shown in fig. 7, in this embodiment, the fixed stopping structure 63 includes a bolt 631, the inner side surface of the pipe section 6 is provided with an insertion hole 62 along the radial direction, one end of the bolt 631 is inserted into the insertion hole 62, the other end of the bolt 631 is protruded on the inner side surface of the pipe section 6, so as to be convenient for disassembly and assembly, and can be reused, and the bolt 631 pushed to the pipe section 6 above the stopping device can be disassembled and then installed on the pipe section 6 to be pushed. Specifically, the bolt 631 is fixed in the insertion hole 62 in a threaded connection mode, a clamping groove clamping mode or a locking and matching mode of a bolt mechanism, so that the bolt 631 and the insertion hole 62 are reliably connected and can be detached.
In another embodiment, as shown in fig. 8, the fixed retaining structure 63 comprises a bracket post 632, and the bracket post 632 is integrally formed with the pipe joint 6. The bracket post 632 is consistent with the pipe joint 6 in structure, so that the durability of the pipe joint 6 can be improved, and the service life of the supporting shaft is prolonged. Specifically, the duct piece 61 and the bracket post 632 are formed by pouring concrete. By arranging the reinforcing steel bars inside the corbel column 632, the load bearing capacity of the corbel column 632 is ensured to meet the requirements.
As shown in fig. 2 and 3, in the embodiment of the present invention, a locking groove 113 matching with the fixed retaining structure 63 is disposed on the abutting end 1112. The fixed retaining structure 63 can be locked in the locking groove 113, so as to prevent the pipe joint 6 from rotating and falling off from the abutting end 1112 in the retraction process. Specifically, after the next pipe joint 6 is assembled, the pipe joint 6 is pushed upwards by the pushing device 4 until the fixed stopping structure 63 is separated from the clamping groove 113, and then the rotating mechanism 2 drives the stopping mechanism 1 to rotate, so that the abutting end 1112 and the fixed stopping structure 63 are staggered.
In another embodiment, as shown in fig. 9, the end surface of the abutting end 1112 is provided with an outer guiding inclined surface 1114, the outer guiding inclined surface 1114 gradually inclines inwards along a vertical downward direction, the fixed retaining structure 63 includes a groove 633 arranged on the inner side surface of the tube segment 6, an inner guiding inclined surface 6331 is arranged in the groove 633, and the inner guiding inclined surface 6331 is matched with the outer guiding inclined surface 1114. The retaining beam 111 expands outward while the segment 61 retracts, so that the abutting end 1112 is inserted into the groove 633 under the guiding of the matching of the inner guiding inclined surface 6331 and the outer guiding inclined surface 1114, thereby realizing the retaining limit of the pipe joint 6.
Specifically, the groove 633 has an upper groove wall and a lower groove wall, the upper groove wall is horizontally disposed, and the lower groove wall gradually inclines downwards from the inside of the groove 633 to the outside of the groove 633 to form an inner guiding inclined surface 6331. The abutting ends 1112 of the retaining beams 111 are bent like a hook, and the plurality of retaining beams 111 are substantially engaged to form a hook claw structure. In the process that the retaining beam 111 rotates upwards to expand, the upper surface 1113 of the abutting end 1112 keeps horizontal all the time, when the retaining mechanism 1 expands to the radial size equal to the inner diameter of the pipe joint 6, the abutting end 1112 is inserted into the groove 633 under the guiding of the matching of the outer guiding inclined surface 1114 and the inner guiding inclined surface 6331, and the upper groove wall surface of the groove 633 abuts against the upper surface 1113 of the abutting end 1112.
In another embodiment, the fixed retaining structure includes a groove formed on an inner side surface of the pipe section, the movable retaining structure is similar to the embodiment, but the abutting end is provided with a telescopic rod capable of extending and retracting along a radial direction of the pipe piece, and the telescopic rod extends along the radial direction in a retracting state of the pipe piece so as to be inserted into the groove.
Second embodiment
As shown in fig. 4, 5 and 6, the present invention further provides an upward-pushing type shaft boring device, which includes the above-mentioned retaining device, and the upward-pushing type shaft boring device further includes: the supporting device 3 is arranged on the tunnel 7, and the rotating mechanism 2 is arranged on the supporting device 3; the two ends of the jacking device 4 are respectively connected with the supporting device 3 and the pipe joint 6; the boring device 5 is supported at the tip of the pipe joint 6. The working principle and the beneficial effects are the same as those of the first embodiment, and are not described again here. Specifically, the support device 3 includes a steel support frame laid in the tunnel. The jacking device 4 comprises a plurality of jacking oil cylinders arranged on the supporting device 3, and the jacking oil cylinders are arranged at intervals along the circumferential direction of the pipe joint 6. Optionally, the upward jacking type shaft boring equipment further comprises a segment assembling device, the segment assembling device is located on one side of the supporting device 3, and the segment assembling device is used for grabbing a plurality of segments 61 one by one onto the jacking device 4 to assemble a new segment of pipe joint 6.
Third embodiment
As shown in fig. 4, 5 and 6, the invention further provides an upward jacking type shaft construction method, which comprises the following steps of: the rotating mechanism 2 drives the retaining mechanism 1 to rotate, so that the movable retaining structure 11 and the fixed retaining structure 63 are staggered; the jacking device 4 drives the pipe joint 6 to jack upwards, so that the tunneling device 5 tunnels upwards for a preset stroke; the rotating mechanism 2 drives the retaining mechanism 1 to rotate, so that the movable retaining structure 11 is opposite to the fixed retaining structure 63; the jacking device 4 retracts, and the pipe joint 6 is subjected to backstop limiting through the backstop mechanism 1; assembling a new pipe joint 6 below the pipe joint 6 at the bottommost end; and repeating the steps until the assembly of the last pipe joint 6 is completed. The working principle and the beneficial effects are the same as those of the first embodiment, and are not described again here.
In the embodiment of the invention, the method also comprises the following steps before construction: mounting the supporting device 3 on the tunnel 7, mounting the retaining device on the supporting device 3, and retracting the at least two movable retaining structures 11 inwards; installing a starting structure at a starting port of the vertical shaft above the backstop device; the supporting device 3 is provided with the jacking device 4, the pipe joint 6, and the boring device 5. The working principle and the beneficial effects are the same as those of the first embodiment, and are not described again here. Specifically, the originating structure includes an originating steel sleeve or the like.
The above description is only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.
Claims (10)
1. A backstop device, comprising:
a rotation mechanism rotatably disposed with respect to the pipe joint;
stopping mechanism, install in rotary mechanism is last, stopping mechanism includes two at least activity stopping structures, two at least the activity stopping structure is followed the circumference interval distribution of tube coupling, and two at least the activity stopping structure can outwards expand or inwards contract, lay two at least fixed stopping structures along its circumference interval on the medial surface of tube coupling, fixed stopping structure is in under the state that the tube coupling rolled back butt in the activity stopping is structural.
2. The backstop device according to claim 1,
the movable stopping structure is installed on the rotating mechanism through the stand column and can be rotationally arranged around a horizontal axis, the movable stopping structure comprises a stopping beam and a telescopic driving piece, the two ends of the stopping beam are respectively a connecting end and a butt end, the connecting end is hinged to the stand column, the fixed stopping structure is in butt connection with the butt end in the state that the pipe section returns, and the two ends of the telescopic driving piece are respectively hinged to the stand column and the stopping beam.
3. The backstop device according to claim 2,
the fixed retaining structure is convexly arranged on the inner side surface of the pipe joint, and the abutting end is abutted with the fixed retaining structure in a horizontal state.
4. The backstop device according to claim 3,
the fixed stopping structure comprises a bolt, an insertion hole is formed in the inner side face of the pipe joint along the radial direction of the pipe joint, one end of the bolt is inserted into the insertion hole, and the other end of the bolt is convexly arranged on the inner side face of the pipe joint.
5. The backstop device according to claim 3,
the fixed stopping structure comprises a bracket column, and the bracket column and the pipe section are of an integrally formed structure.
6. The backstop device according to claim 3,
and the butt joint end is provided with a clamping groove matched with the fixed retaining structure.
7. The backstop device according to claim 2,
the end face of the butt joint end is provided with an outer guide inclined plane, the outer guide inclined plane gradually inclines inwards along a vertical downward direction, the fixed retaining structure comprises a groove arranged on the inner side face of the pipe joint, an inner guide inclined plane is arranged in the groove, and the inner guide inclined plane is matched with the outer guide inclined plane.
8. An upward-jacking type shaft boring apparatus, comprising the retaining device according to any one of claims 1 to 7, further comprising:
the supporting device is arranged on the tunnel, and the rotating mechanism is arranged on the supporting device;
the two ends of the jacking device are respectively connected with the supporting device and the pipe joint;
and the tunneling device is supported at the top end of the pipe joint.
9. A construction method of an upward-jacking type shaft, characterized in that the upward-jacking type shaft driving apparatus of claim 8 is used, the construction method of the upward-jacking type shaft comprising the steps of:
the rotating mechanism drives the retaining mechanism to rotate, so that the movable retaining structure and the fixed retaining structure are staggered;
the jacking device drives the pipe joint to jack upwards, so that the tunneling device tunnels upwards for a preset stroke;
the rotating mechanism drives the retaining mechanism to rotate, so that the movable retaining structure is opposite to the fixed retaining structure;
the jacking device retracts, and the pipe joint is subjected to backstop limiting through the backstop mechanism;
assembling a new pipe joint below the pipe joint at the bottommost end;
and repeating the steps until the assembly of the last pipe joint is completed.
10. The upward jacking type shaft construction method according to claim 9, further comprising the steps of, before the construction:
mounting the supporting device on the tunnel, and mounting the retaining device on the supporting device,
retracting at least two of the movable backstop structures inwardly;
installing a starting structure at a starting port of the shaft above the retaining device;
and assembling the jacking device, the pipe joint and the tunneling device on the supporting device.
Priority Applications (1)
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CN202111524673.3A CN114215525A (en) | 2021-12-14 | 2021-12-14 | Stopping device, upward jacking type vertical shaft tunneling equipment and vertical shaft construction method |
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CN202111524673.3A CN114215525A (en) | 2021-12-14 | 2021-12-14 | Stopping device, upward jacking type vertical shaft tunneling equipment and vertical shaft construction method |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN206129148U (en) * | 2016-08-12 | 2017-04-26 | 叶晓明 | Translation formula rock drilling pore -forming machine |
CN111502686A (en) * | 2020-05-26 | 2020-08-07 | 上海公路桥梁(集团)有限公司 | Pipe jacking retaining device |
CN112412470A (en) * | 2020-10-21 | 2021-02-26 | 中建五局土木工程有限公司 | Pipe jacking machine and pipe joint returning construction device and construction method |
CN112901184A (en) * | 2021-04-19 | 2021-06-04 | 广州金土岩土工程技术有限公司 | Automatic stopping device of rectangle push pipe with pawl |
CN113216973A (en) * | 2021-04-23 | 2021-08-06 | 中铁工程装备集团有限公司 | From top pushing-type shaft heading equipment down |
-
2021
- 2021-12-14 CN CN202111524673.3A patent/CN114215525A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN206129148U (en) * | 2016-08-12 | 2017-04-26 | 叶晓明 | Translation formula rock drilling pore -forming machine |
CN111502686A (en) * | 2020-05-26 | 2020-08-07 | 上海公路桥梁(集团)有限公司 | Pipe jacking retaining device |
CN112412470A (en) * | 2020-10-21 | 2021-02-26 | 中建五局土木工程有限公司 | Pipe jacking machine and pipe joint returning construction device and construction method |
CN112901184A (en) * | 2021-04-19 | 2021-06-04 | 广州金土岩土工程技术有限公司 | Automatic stopping device of rectangle push pipe with pawl |
CN113216973A (en) * | 2021-04-23 | 2021-08-06 | 中铁工程装备集团有限公司 | From top pushing-type shaft heading equipment down |
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