CN117246896A - Auxiliary hoisting method for tunnel steel arch - Google Patents
Auxiliary hoisting method for tunnel steel arch Download PDFInfo
- Publication number
- CN117246896A CN117246896A CN202311185015.5A CN202311185015A CN117246896A CN 117246896 A CN117246896 A CN 117246896A CN 202311185015 A CN202311185015 A CN 202311185015A CN 117246896 A CN117246896 A CN 117246896A
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- steel
- steel arch
- lifting rope
- fixing frame
- hoisting
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 116
- 239000010959 steel Substances 0.000 title claims abstract description 116
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000004804 winding Methods 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular Effects 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
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses an auxiliary hoisting method for a tunnel steel arch, which comprises the following steps: a plurality of steel arches are placed in the notch of the inverted U-shaped fixing frame side by side; winding a lifting rope on a pulley block, connecting one end of the lifting rope with a tensioning device, and installing a connecting ring on the other end of the lifting rope, so that one end of the lifting rope, provided with the connecting ring, penetrates through a gap between the steel arches and extends to the bottom of the steel arches; respectively penetrating two steel pipes through corresponding connection rings at two ends of a fixing frame, and installing annular baffles at two ends of the steel pipes; connecting the hoisting device with the tensioning device, hoisting the tensioning device, and tensioning the hoisting rope to clamp the steel arch frame between the steel pipe and the fixing frame; removing the annular baffles at the two ends of the steel pipe, drawing the steel pipe out of the connecting ring, and taking out the connecting ring and the lifting rope from the gap between the steel arches; until all the steel arches are hoisted to the designated positions. The invention has the advantages that: the hoisting is not needed to be welded, the operation is simple, and the hoisting device can be used repeatedly.
Description
Technical Field
The invention belongs to the technical field of tunnel steel arch hoisting, and particularly relates to an auxiliary hoisting method for a tunnel steel arch.
Background
The I-steel arch is a supporting material which needs a large amount of use in the surrounding rock supporting of a tunnel, because the steel arch has a large dead weight and a certain radian, the lifting and the transportation are inconvenient, when the steel arch is transported from a processing factory to a construction operation surface at present, the steel arch is mostly lifted in bundles after being bound by thin steel bars, because the steel arch is irregular in shape, in order to be firmly bound, on-site workers often weld the thin steel bars for binding on the surface of the steel arch, so that the firmness during the lifting is improved, the operation is difficult, the welding has a certain influence on the arch structure, and the loading and the unloading are also inconvenient.
Disclosure of Invention
According to the defects of the prior art, the auxiliary hoisting method for the tunnel steel arch frame is provided, the hoisting ropes are tensioned through the tensioning device, so that the steel pipe and the fixing frame clamp the steel arch frame in the middle of the steel pipe and the fixing frame, the steel arch frame is fixed, adverse effects on the steel arch frame caused by welding are avoided, and reliable hoisting of the steel arch frame is realized.
The invention is realized by the following technical scheme:
the auxiliary hoisting method for the tunnel steel arch is characterized by comprising the following steps of:
(S1) arranging a plurality of steel arches in a notch of an inverted U-shaped fixing frame side by side, wherein a plurality of pulley blocks are arranged at two ends of the top of the fixing frame;
(S2) winding a lifting rope on the pulley block, connecting one end of the lifting rope with a tensioning device, and installing a connecting circular ring on the other end of the lifting rope, so that one end of the lifting rope, on which the connecting circular ring is installed, passes through a gap between the steel arches and extends to the bottom of the steel arches;
(S3) respectively passing two steel pipes through the corresponding connecting circular rings at two ends of the fixing frame, and installing circular baffle plates at two ends of the steel pipes;
(S4) connecting a lifting device with the tensioning device, lifting the tensioning device, and tensioning the lifting rope so that the steel pipe and the fixing frame clamp the steel arch in the middle of the steel pipe and the fixing frame to fix the steel arch;
(S5) after the steel arch is hoisted to a designated position, the annular baffles at the two ends of the steel pipe are disassembled, the steel pipe is pulled out of the connecting ring, and the connecting ring and the lifting rope are taken out of a gap between the steel arch;
(S6) repeating steps S1 to S5 until all the steel arches are hoisted to a specified position.
The fixing frame comprises a top plate and two side plates, the top plate and the side plates are arc-shaped, the arc surface of the top plate is matched with the arc surface of the top of the steel arch, and the arc surface of the side plates is matched with the arc surface of the side part of the steel arch.
The tensioning device comprises a rectangular frame and an inverted V-shaped lifting rope, wherein the upper part of the rectangular frame is connected with the inverted V-shaped lifting rope, and the lower part of the rectangular frame is connected with the other end of the lifting rope.
And three pulley blocks are respectively arranged at two ends of the top of the fixing frame, and each pulley block consists of two pulleys.
The two pulleys are a first pulley which is close to the outermost end of the top of the fixing frame and a second pulley which is far away from the outermost end of the top of the fixing frame respectively, and the lifting rope is wound on the upper side of the first pulley and the lower side of the second pulley respectively.
The inner diameter of the connecting circular ring is larger than the outer diameter of the steel pipe.
The invention has the advantages that: the hoisting is not needed to be welded, the operation is simple, and the hoisting device can be used repeatedly; the lifting rope is tensioned through the tensioning device, so that the steel pipe and the fixing frame clamp the steel arch frame in the middle of the steel pipe and the fixing frame, the steel arch frame is fixed, and the reliable lifting of the steel arch frame is realized.
Drawings
FIG. 1 is a schematic structural view of a hoisting device according to the present invention;
fig. 2 is a schematic diagram of the operation of the present invention for lifting a steel arch.
Description of the embodiments
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings, to facilitate understanding by those skilled in the art:
the marks in the figures are shown as a fixed frame 1, a pulley block 2, a lifting rope 3, a steel pipe 4, a connecting circular ring 5, a circular ring-shaped baffle 6, a rectangular frame 7, an inverted V-shaped lifting rope 8 and a steel arch 9.
Examples: as shown in fig. 1-2, the embodiment specifically relates to an auxiliary hoisting method for a tunnel steel arch, which is used for hoisting a steel arch 9, and specifically comprises the following steps:
(S1) arranging a plurality of steel arches 9 side by side in the notch of the inverted U-shaped fixing frame 1.
Wherein, mount 1 includes roof and two curb plates, roof and curb plate are the arc, the cambered surface of roof and the cambered surface looks adaptation at steel bow member 6 top, the cambered surface of curb plate and the cambered surface looks adaptation at steel bow member 9 lateral part, the curb plate can prevent the lateral movement of hoist and mount in-process steel bow member 9, in this embodiment, can hold four steel bow members 9 in the notch of mount 1, can hoist and mount four steel bow members 9 simultaneously, of course, also can increase or reduce the size of mount 1 notch according to actual conditions to hoist and mount more or less steel bow members 9. Both ends at mount 1 top all are equipped with a plurality of assembly pulley 2, and in this embodiment, the both ends at mount 1 top respectively are equipped with three assembly pulley 2, and every assembly pulley 2 comprises two pulleys, and two pulleys are respectively being close to the first pulley that mount 1 roof outermost end set up and keeping away from the second pulley that mount 1 roof outermost end set up.
And (S2) winding the lifting rope 3 on the pulley block 2, connecting one end of the lifting rope 3 with the tensioning device, and installing the connecting circular ring 5 on the other end of the lifting rope 3, so that one end of the lifting rope 3 provided with the connecting circular ring 5 penetrates through a gap between the steel arches 9 and extends to the bottom of the steel arches 9.
The number of the lifting ropes 3 corresponds to the number of the pulley blocks 2, namely, each pulley block 2 corresponds to one lifting rope 3, each lifting rope 3 corresponds to one connecting ring 6, and the lifting ropes 3 are respectively wound on the upper side of the first pulley and the lower side of the second pulley. The tensioning device comprises a rectangular frame 7 and an inverted V-shaped lifting rope 8, wherein the upper part of the rectangular frame 7 is connected with the inverted V-shaped lifting rope 8, and the lower part of the rectangular frame is connected with the other end of the lifting rope 3.
And (S3) respectively penetrating the two steel pipes 4 through the corresponding connecting circular rings 5 at the two ends of the fixing frame 1, and installing circular baffle plates 6 at the two ends of the steel pipes 4.
The inner diameter of the connecting circular ring 5 is larger than the outer diameter of the steel pipe 4, so that the steel pipe 4 penetrates into the connecting circular ring 5 or is pulled out from the connecting circular ring 5, the steel pipe 4 and the circular ring-shaped baffle 6 are in threaded connection, the connecting circular ring 5 and the circular ring-shaped baffle 6 are convenient to detach, and the connecting circular ring 5 and the circular ring-shaped baffle 6 can be used for separation and limiting among a plurality of steel arches 9.
And (S4) connecting the hoisting device with a tensioning device, hoisting the tensioning device and tensioning the hoisting rope 3, so that the steel pipe 4 and the fixing frame 1 clamp the steel arch 9 in the middle of the steel pipe and the fixing frame to fix the steel arch 9, and then moving the steel arch 9 to a specified position.
The top of the inverted V-shaped lifting rope 8 can be connected with a lifting hook of a lifting device, the inverted V-shaped lifting rope 8 is pulled upwards through the lifting device, the lifting rope 3 is tensioned, the steel pipe 4 and the fixing frame 1 clamp a steel arch 9 in the middle of the steel pipe and the fixing frame, and then the steel arch 9 is fixed.
And (S5) after the steel arch 9 is hoisted to a specified position, the annular baffles 6 at the two ends of the steel pipe 4 are disassembled, the steel pipe 4 is pulled out from the connecting annular ring 5, and the connecting annular ring 5 and the lifting rope 3 are taken out from the gap between the steel arch 9.
(S6) repeating the steps S1 to S5 until all the steel arches 9 are hoisted to the specified positions.
The beneficial effects of this embodiment are: the hoisting is not needed to be welded, the operation is simple, and the hoisting device can be used repeatedly; the lifting rope is tensioned through the tensioning device, so that the steel pipe and the fixing frame clamp the steel arch frame in the middle of the steel pipe and the fixing frame, the steel arch frame is fixed, and the reliable lifting of the steel arch frame is realized.
Although the foregoing embodiments have been described in some detail with reference to the accompanying drawings, it will be appreciated by those skilled in the art that various modifications and changes may be made thereto without departing from the scope of the invention as defined in the appended claims, and thus are not repeated herein.
Claims (6)
1. The auxiliary hoisting method for the tunnel steel arch is characterized by comprising the following steps of:
(S1) arranging a plurality of steel arches in a notch of an inverted U-shaped fixing frame side by side, wherein a plurality of pulley blocks are arranged at two ends of the top of the fixing frame;
(S2) winding a lifting rope on the pulley block, connecting one end of the lifting rope with a tensioning device, and installing a connecting circular ring on the other end of the lifting rope, so that one end of the lifting rope, on which the connecting circular ring is installed, passes through a gap between the steel arches and extends to the bottom of the steel arches;
(S3) respectively passing two steel pipes through the corresponding connecting circular rings at two ends of the fixing frame, and installing circular baffle plates at two ends of the steel pipes;
(S4) connecting a lifting device with the tensioning device, lifting the tensioning device, and tensioning the lifting rope so that the steel pipe and the fixing frame clamp the steel arch in the middle of the steel pipe and the fixing frame to fix the steel arch;
(S5) after the steel arch is hoisted to a designated position, the annular baffles at the two ends of the steel pipe are disassembled, the steel pipe is pulled out of the connecting ring, and the connecting ring and the lifting rope are taken out of a gap between the steel arch;
(S6) repeating steps S1 to S5 until all the steel arches are hoisted to a specified position.
2. The tunnel steel arch auxiliary hoisting method according to claim 1, wherein the fixing frame comprises a top plate and two side plates, the top plate and the side plates are arc-shaped, the arc surface of the top plate is matched with the arc surface of the top of the steel arch, and the arc surface of the side plates is matched with the arc surface of the side part of the steel arch.
3. The auxiliary hoisting method for the tunnel steel arch according to claim 1, wherein the tensioning device comprises a rectangular frame and an inverted V-shaped hoisting rope, the upper part of the rectangular frame is connected with the inverted V-shaped hoisting rope, and the lower part of the rectangular frame is connected with the other end of the hoisting rope.
4. The auxiliary hoisting method for the tunnel steel arch according to claim 1, wherein three pulley blocks are respectively arranged at two ends of the top of the fixing frame, and each pulley block consists of two pulleys.
5. The auxiliary hoisting method for the tunnel steel arch according to claim 4, wherein the two pulleys are a first pulley arranged close to the outermost end of the top of the fixed frame and a second pulley arranged far away from the outermost end of the top of the fixed frame, and the hoisting ropes are wound on the upper side of the first pulley and the lower side of the second pulley respectively.
6. The tunnel steel arch auxiliary hoisting method according to claim 1, wherein the inner diameter of the connecting ring is larger than the outer diameter of the steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311185015.5A CN117246896A (en) | 2023-09-14 | 2023-09-14 | Auxiliary hoisting method for tunnel steel arch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311185015.5A CN117246896A (en) | 2023-09-14 | 2023-09-14 | Auxiliary hoisting method for tunnel steel arch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117246896A true CN117246896A (en) | 2023-12-19 |
Family
ID=89130618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311185015.5A Pending CN117246896A (en) | 2023-09-14 | 2023-09-14 | Auxiliary hoisting method for tunnel steel arch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117246896A (en) |
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2023
- 2023-09-14 CN CN202311185015.5A patent/CN117246896A/en active Pending
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