CN116181964A - Sectional installation construction method for tunnel reinforcement pipe shed - Google Patents
Sectional installation construction method for tunnel reinforcement pipe shed Download PDFInfo
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- CN116181964A CN116181964A CN202310230914.6A CN202310230914A CN116181964A CN 116181964 A CN116181964 A CN 116181964A CN 202310230914 A CN202310230914 A CN 202310230914A CN 116181964 A CN116181964 A CN 116181964A
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- pipe shed
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 99
- 238000010276 construction Methods 0.000 title claims abstract description 14
- 238000009434 installation Methods 0.000 title claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 257
- 239000010959 steel Substances 0.000 claims abstract description 257
- 238000000034 method Methods 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
- F16L1/036—Laying or reclaiming pipes on land, e.g. above the ground in the ground the pipes being composed of sections of short length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
- B23K31/027—Making tubes with soldering or welding
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D9/04—Driving tunnels or galleries through loose materials; Apparatus therefor not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
- F16L1/09—Accessories therefor, e.g. anchors for bringing two tubular members closer to each other
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a sectional installation construction method of a tunnel reinforcement pipe shed, which adopts a traction mode to penetrate a reinforcement cage section into a pipe shed steel pipe to be installed in the same section, so as to avoid the deformation of the reinforcement cage caused by compressive instability; the steel pipes are welded instead of screwed connection, so that the steel reinforcement framework is prevented from being deformed by torsion; the tool sleeve is adopted to protect the tail part of the steel pipe of the pipe shed and the exposed steel reinforcement cage from being impacted and extruded to deform when pushing the hole; the tool sleeve is welded on the pushing tool to prevent the pushing tool from sliding with the tail of the pipe shed steel pipe and ensure that the force application direction is consistent with the axis of the pipe shed steel pipe; and the installation and construction efficiency and quality of the reinforced pipe shed steel pipe are effectively improved.
Description
Technical Field
The invention relates to a tunnel construction method, in particular to a tunnel reinforcement pipe shed section installation construction method.
Background
In order to ensure the safety of tunnel excavation and tunnel entering construction, the greenhouse is widely applied. When the geological condition is worse, in order to improve the intensity of the pipe shed, a steel reinforcement cage is arranged in the steel pipe of the pipe shed. The current common construction method of the pipe shed adopts a down-the-hole drill to guide holes, then uses an excavator or a loader and other machines to push the pipe shed steel pipes into the holes in a segmented mode to be installed in place, uses external threading at the joint position of the pipe shed steel pipes, and twists connecting steel pipes with internal threading to carry out threaded connection; when the steel bar framework is arranged in the pipe shed steel pipe, the whole steel bar framework is pushed into the pipe shed steel pipe.
Because the steel reinforcement framework in the pipe shed steel pipe has large length and small rigidity, the disposable integral pushing hole is difficult to mount in place, and is easy to unstably deform under pushing pressure.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a sectional installation construction method for a tunnel reinforcement pipe shed, which ensures the smoothness of a reinforcement cage and improves the construction quality and the construction efficiency of the pipe shed.
The invention discloses a method for installing and constructing a tunnel reinforcement pipe shed section by section, which comprises the following steps:
s1: and (3) manufacturing a pipe shed steel pipe and a steel bar framework by sectional processing:
dividing the steel pipe of the tunnel pipe shed into a plurality of sections according to the design length of the tunnel pipe shed and the length of the steel pipe of the entering raw material, and numbering the sections from the front end to the tail end as a first section, a second section … … nth section and an n+1th section … … mth section in sequence; correspondingly dividing a steel reinforcement framework to be installed in each section of pipe shed steel pipe into m sections, wherein the section number of the steel reinforcement framework is the same as the section number of the pipe shed steel pipe;
the length of the first section of steel reinforcement framework is equal to the length of the first section of pipe shed steel pipe plus the length of the joint section of the steel reinforcement framework;
the length of the second section to the m-1 section of steel reinforcement frameworks is equal to the length of the corresponding pipe shed steel pipe section, and when the steel reinforcement frameworks are connected in a lap welding mode, the length of the steel reinforcement frameworks is additionally increased by a lap joint section length;
the length of the steel reinforcement framework of the mth section is equal to the length of the steel pipe of the pipe shed of the mth section-the length of the joint section of the steel reinforcement framework;
s2: the steel reinforcement framework penetrates into the corresponding section pipe shed steel pipe:
the steel wire rope penetrates through the pipe shed steel pipe from inside and is connected with the end part of the steel reinforcement framework of the corresponding section, and the steel reinforcement framework penetrates into the pipe shed steel pipe of the corresponding section in a traction mode;
the length of the joint section of the first section of steel reinforcement cage exposed out of the tail of the steel tube of the first section of pipe shed;
the lengths of the joint sections of the reinforcement frameworks exposed at the front ends of the steel pipes of the corresponding sections of pipe sheds are the lengths of the joint sections of the reinforcement frameworks,
s3: the steel pipe pushing hole of the first pipe shed is provided with:
301, preparing a tool sleeve, wherein the tool sleeve comprises a pipe body, a plurality of guide rods are uniformly distributed along the circumferential direction of the outer wall of the pipe body, the rear ends of the guide rods are fixedly connected with the outer wall of the front end of the pipe body, the lengths of the front ends of the guide rods extending out of the front end of the pipe body are not less than 4 times of the diameter of the pipe body, and the central axes of the guide rods are parallel to the central axes of the pipe body; the length of the pipe body is longer than that of the exposed reinforcement cage joint;
302, placing the front end of a first section of pipe shed steel pipe provided with a first section of steel reinforcement framework into a pipe shed guiding hole, installing a tool sleeve at the tail of the first section of pipe shed steel pipe, tightly propping the front end of a pipe body against the tail of the first section of pipe shed steel pipe, extending the joint section of the steel reinforcement framework into the pipe body, tightly clinging the outer wall of the first section of pipe shed steel pipe by a guide rod, enabling the axis of the pipe body to be consistent with the axis of the first section of pipe shed steel pipe, and connecting the pipe body with the first section of pipe shed steel pipe into a whole;
303, welding the rear end of the pipe body on a pushing machine tool, pushing most of the first section of pipe shed steel pipe provided with the first section of steel reinforcement framework into a pipe shed guiding hole, exposing the tail part of the first section of pipe shed steel pipe only outside the pipe shed guiding hole, removing the tool sleeve,
s4: and (3) lengthening the steel pipe and the steel reinforcement framework of the pipe shed:
401, sleeving a connecting steel pipe at the front end of a steel pipe of a later section of pipe shed, aligning the steel pipe of the later section of pipe shed and a steel reinforcement cage placed in the steel pipe of the later section of pipe shed with the axis of the steel pipe of the former section of pipe shed, and welding the front section of steel reinforcement cage and the rear section of steel reinforcement cage together;
402, respectively installing a pipe hoop type clamp at the tail part of a steel pipe of a previous section of pipe shed and the front end of a steel pipe of a next section of pipe shed, clamping the steel pipe of the pipe shed, taking the two clamps as attachment points, adopting a chain block or a jack to close and jack the two front and rear sections of pipe shed steel pipes, moving the steel pipe of the next section of pipe shed forward in the process of closing the steel pipe of the pipe shed, and exposing the joint section length of the steel reinforcement framework at the tail part of the steel pipe of the next section of pipe shed for lengthening the next steel reinforcement framework;
403, removing the clamp;
s5: pipe canopy steel pipe section pushes away the hand hole:
installing a tool sleeve at the tail of the second section pipe shed steel pipe by adopting the method of the step 302, then connecting a pushing tool by adopting the method of the step 303, pushing most of the top of the second section pipe shed steel pipe into a pipe shed guiding hole by using the pushing tool, only exposing the tail of the second section pipe shed steel pipe outside the pipe shed guiding hole, and removing the tool sleeve;
s6: adding 1 to the segment number value of the steel pipe of the pipe shed, and repeating the steps S4 and S5 until the top of the steel pipe of the pipe shed of the m-th section is pushed into the pipe shed guiding hole, and pushing the tail of the steel pipe of the pipe shed of the m-th section into the pipe shed guiding hole completely by using a pushing machine tool, wherein the tail of the steel pipe of the pipe shed of the m-th section is flush with the hole opening of the pipe shed guiding hole, and the whole pipe shed steel pipe is installed;
s7: and repeating the steps S1 to S6 until all the steel pipes of the pipe shed are installed.
The invention has the advantages and positive effects that: the steel reinforcement framework is penetrated into the pipe shed steel pipe in a segmented mode by adopting a traction mode, so that the problem of buckling deformation of the steel reinforcement framework under pressure is effectively avoided, and the installation quality and the installation efficiency of the steel reinforcement framework are improved; the welded joint is adopted to avoid the problem that the steel reinforcement cage is subjected to torsional deformation in the process of steel pipe threaded connection; the tail part of the steel pipe of the shed and the exposed reinforcement cage joint are protected by the tool sleeve and are not impacted and extruded to deform when the steel pipe is pushed into the hole, so that the connection quality between the steel pipe of the shed and each section of the reinforcement cage in the steel pipe is ensured; the tool sleeve is welded on the pushing tool, so that the pushing tool and the tail part of the pipe shed steel pipe can be prevented from sliding, the force application direction of the pushing tool is ensured to be consistent with the axis of the pipe shed steel pipe, and the installation construction efficiency and quality of the pipe shed steel pipe can be improved.
Drawings
FIG. 1 is a schematic view of the construction of a joint part of a steel pipe and a steel reinforcement cage according to the present invention;
FIG. 2 is a schematic diagram of the structure of a steel pipe of the pipe shed according to the invention;
FIG. 3 is a schematic view of a tool sleeve according to the present invention;
fig. 4 is a schematic view of a tool sleeve application of the present invention.
Detailed Description
For further understanding of the invention, the following examples are set forth to illustrate the invention, and are to be considered in connection with FIGS. 1-4 of the drawings, as follows:
the invention discloses a method for installing and constructing a tunnel reinforcement pipe shed section by section, which comprises the following steps:
s1: and (3) manufacturing a pipe shed steel pipe and a steel bar framework by sectional processing:
dividing the steel pipe 1 of the tunnel pipe shed into a plurality of sections according to the design length of the tunnel pipe shed and the length of the steel pipe of the entering raw material, and numbering the sections from the front end to the tail end as a first section, a second section … … nth section and an n+1th section … … mth section in sequence; correspondingly dividing a steel reinforcement framework 2 to be installed in each section of pipe shed steel pipe into m sections, wherein the section number of the steel reinforcement framework 2 is the same as the section number of the pipe shed steel pipe 1;
the length of the first section of steel reinforcement framework 2 is equal to the length of the first section of pipe shed steel pipe plus the length of the joint section of the steel reinforcement framework;
the length of the second section to the m-1 section of steel reinforcement framework 2 is equal to the length of the corresponding pipe shed steel pipe section, and when the steel reinforcement framework 2 is connected in a lap welding mode, the length of the steel reinforcement framework 2 is additionally increased by a lap joint section length;
the length of the steel reinforcement framework 2 of the mth section is equal to the length of the steel pipe of the pipe shed of the mth section-the length of the joint section of the steel reinforcement framework.
S2: the steel reinforcement framework penetrates into the corresponding section pipe shed steel pipe:
the steel wire rope penetrates through the pipe shed steel pipe 1 from inside and is connected with the end part of the steel reinforcement framework 2 of the corresponding section, and the steel reinforcement framework 2 is penetrated into the pipe shed steel pipe 1 of the corresponding section in a pulling mode;
the length of the joint section of the reinforcement cage is exposed out of the tail of the steel pipe 1 of the first section of pipe shed by the first section of reinforcement cage 2;
the lengths of the joint sections of the reinforcement cages 2 exposed at the front ends of the corresponding sections of the pipe shed steel pipes 1 are the same.
S3: the steel pipe pushing hole of the first pipe shed is provided with:
301, preparing a tool sleeve, wherein the tool sleeve comprises a pipe body 3, the pipe body 3 is preferably made of a steel pipe identical to a pipe shed steel pipe 1, a plurality of guide rods 4 are uniformly distributed along the circumferential direction of the outer wall of the pipe body 3, the rear ends of the guide rods 4 are fixedly connected with the outer wall of the front end of the pipe body 3, the length of the front ends of the guide rods extending out of the front end of the pipe body 3 is not less than 4 times of the diameter of the pipe body 3, and the central axis of the guide rods 4 is parallel to the central axis of the pipe body 3; the length of the pipe body 3 is longer than the exposed joint length of the reinforcement cage. The guide rod 4 can be made of straight section steel or steel bars.
302, placing the front end of a first section of pipe shed steel pipe 1 provided with a first section of steel reinforcement framework into a pipe shed guiding hole, installing a tool sleeve at the tail of the first section of pipe shed steel pipe 1, tightly propping the front end of a pipe body 3 against the tail of the first section of pipe shed steel pipe 1, extending the joint section of the steel reinforcement framework into the pipe body 3, tightly attaching a guide rod 4 to the outer wall of the first section of pipe shed steel pipe 1, enabling the axis of the pipe body 3 to be consistent with the axis of the first section of pipe shed steel pipe 1, and connecting the pipe body with the first section of pipe shed steel pipe 1 into a whole;
303, welding the rear end of the pipe body on a pushing machine tool, pushing most of the top of the first section of pipe shed steel pipe 1 provided with the first section of steel reinforcement framework into a pipe shed guiding hole, exposing the tail of the first section of pipe shed steel pipe only outside the pipe shed guiding hole, and removing the tool sleeve.
S4: and (3) lengthening the steel pipe and the steel reinforcement framework of the pipe shed:
401, sleeving a connecting steel pipe 5 at the front end of a later section of pipe shed steel pipe 1, aligning the later section of pipe shed steel pipe 1 and a steel reinforcement cage 2 placed in the later section of pipe shed steel pipe with the axis of the former section of pipe shed steel pipe 1, and welding the front section of steel reinforcement cage 2 and the rear section of steel reinforcement cage 2 together;
402, respectively installing a pipe hoop type clamp 6 at the tail part of a front section of pipe shed steel pipe 1 and the front end of a rear section of pipe shed steel pipe 1 to clamp the pipe shed steel pipe 1, using the two clamps 6 as attachment points, adopting a chain block or a jack to draw together and jack up the front section of pipe shed steel pipe 1 and the rear section of pipe shed steel pipe 1, moving the rear section of pipe shed steel pipe 1 forward in the drawing process of the pipe shed steel pipe 1, and exposing the joint length of the reinforcement cage at the tail part of the rear section of pipe shed steel pipe 1 by the rear section of reinforcement cage 2 for lengthening the next reinforcement cage;
403, removing the clamp 6;
preferably, between steps 402 and 403 there are the following steps: welding the seam between the front end of the steel pipe 1 of the next section of pipe shed and the tail end of the steel pipe 1 of the previous section of pipe shed and polishing the seam to be smooth; then the middle part of the connecting steel pipe 5 is moved to the joint, and two ends of the connecting steel pipe 5 are welded with the steel pipe 1 of the next section of pipe shed and the steel pipe of the previous section of pipe shed respectively; the reliability of two sections of steel pipes can be further enhanced by adopting the step.
S5: pipe canopy steel pipe section pushes away the hand hole:
installing a tool sleeve at the tail of the second section pipe shed steel pipe 1 by adopting a method of the step 302, then connecting a pushing tool by adopting a method of the step 303, pushing most of the top of the second section pipe shed steel pipe 1 into a pipe shed guiding hole by using the pushing tool, only exposing the tail of the second section pipe shed steel pipe outside the pipe shed guiding hole, and removing the tool sleeve;
s6: and adding 1 to the segment number value of the steel pipe of the pipe shed, and repeating the steps S4 and S5 until the top of the steel pipe of the pipe shed of the m-th section is pushed into the pipe shed pilot hole, and pushing the tail of the steel pipe of the pipe shed of the m-th section into the pipe shed pilot hole completely by using a pushing machine tool, wherein the tail of the steel pipe of the pipe shed of the m-th section is flush with the hole opening of the pipe shed pilot hole, and the whole pipe shed steel pipe 1 is installed.
S7: and repeating the steps S1 to S6 until all the pipe shed steel pipes 1 are installed.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the appended claims, which are within the scope of the present invention.
Claims (2)
1. The sectional installation construction method of the tunnel reinforcement pipe shed is characterized by comprising the following steps of:
s1: and (3) manufacturing a pipe shed steel pipe and a steel bar framework by sectional processing:
dividing the steel pipe of the tunnel pipe shed into a plurality of sections according to the design length of the tunnel pipe shed and the length of the steel pipe of the entering raw material, and numbering the sections from the front end to the tail end as a first section, a second section … … nth section and an n+1th section … … mth section in sequence; correspondingly dividing a steel reinforcement framework to be installed in each section of pipe shed steel pipe into m sections, wherein the section number of the steel reinforcement framework is the same as the section number of the pipe shed steel pipe;
the length of the first section of steel reinforcement framework is equal to the length of the first section of pipe shed steel pipe plus the length of the joint section of the steel reinforcement framework;
the length of the second section to the m-1 section of steel reinforcement frameworks is equal to the length of the corresponding pipe shed steel pipe section, and when the steel reinforcement frameworks are connected in a lap welding mode, the length of the steel reinforcement frameworks is additionally increased by a lap joint section length;
the length of the steel reinforcement framework of the mth section is equal to the length of the steel pipe of the pipe shed of the mth section-the length of the joint section of the steel reinforcement framework;
s2: the steel reinforcement framework penetrates into the corresponding section pipe shed steel pipe:
the steel wire rope penetrates through the pipe shed steel pipe from inside and is connected with the end part of the steel reinforcement framework of the corresponding section, and the steel reinforcement framework penetrates into the pipe shed steel pipe of the corresponding section in a traction mode;
the length of the joint section of the first section of steel reinforcement cage exposed out of the tail of the steel tube of the first section of pipe shed;
the lengths of the joint sections of the reinforcement frameworks exposed at the front ends of the steel pipes of the corresponding sections of pipe sheds are the lengths of the joint sections of the reinforcement frameworks,
s3: the steel pipe pushing hole of the first pipe shed is provided with:
301, preparing a tool sleeve, wherein the tool sleeve comprises a pipe body, a plurality of guide rods are uniformly distributed along the circumferential direction of the outer wall of the pipe body, the rear ends of the guide rods are fixedly connected with the outer wall of the front end of the pipe body, the lengths of the front ends of the guide rods extending out of the front end of the pipe body are not less than 4 times of the diameter of the pipe body, and the central axes of the guide rods are parallel to the central axes of the pipe body; the length of the pipe body is longer than that of the exposed reinforcement cage joint;
302, placing the front end of a first section of pipe shed steel pipe provided with a first section of steel reinforcement framework into a pipe shed guiding hole, installing a tool sleeve at the tail of the first section of pipe shed steel pipe, tightly propping the front end of a pipe body against the tail of the first section of pipe shed steel pipe, extending the joint section of the steel reinforcement framework into the pipe body, tightly clinging the outer wall of the first section of pipe shed steel pipe by a guide rod, enabling the axis of the pipe body to be consistent with the axis of the first section of pipe shed steel pipe, and connecting the pipe body with the first section of pipe shed steel pipe into a whole;
303, welding the rear end of the pipe body on a pushing machine tool, pushing most of the first section of pipe shed steel pipe provided with the first section of steel reinforcement framework into a pipe shed guiding hole, exposing the tail part of the first section of pipe shed steel pipe only outside the pipe shed guiding hole, removing the tool sleeve,
s4: and (3) lengthening the steel pipe and the steel reinforcement framework of the pipe shed:
401, sleeving a connecting steel pipe at the front end of a steel pipe of a later section of pipe shed, aligning the steel pipe of the later section of pipe shed and a steel reinforcement cage placed in the steel pipe of the later section of pipe shed with the axis of the steel pipe of the former section of pipe shed, and welding the front section of steel reinforcement cage and the rear section of steel reinforcement cage together;
402, respectively installing a pipe hoop type clamp at the tail part of a steel pipe of a previous section of pipe shed and the front end of a steel pipe of a next section of pipe shed, clamping the steel pipe of the pipe shed, taking the two clamps as attachment points, adopting a chain block or a jack to close and jack the two front and rear sections of pipe shed steel pipes, moving the steel pipe of the next section of pipe shed forward in the process of closing the steel pipe of the pipe shed, and exposing the joint section length of the steel reinforcement framework at the tail part of the steel pipe of the next section of pipe shed for lengthening the next steel reinforcement framework;
403, removing the clamp;
s5: pipe canopy steel pipe section pushes away the hand hole:
installing a tool sleeve at the tail of the second section pipe shed steel pipe by adopting the method of the step 302, then connecting a pushing tool by adopting the method of the step 303, pushing most of the top of the second section pipe shed steel pipe into a pipe shed guiding hole by using the pushing tool, only exposing the tail of the second section pipe shed steel pipe outside the pipe shed guiding hole, and removing the tool sleeve;
s6: adding 1 to the segment number value of the steel pipe of the pipe shed, and repeating the steps S4 and S5 until the top of the steel pipe of the pipe shed of the m-th section is pushed into the pipe shed guiding hole, and pushing the tail of the steel pipe of the pipe shed of the m-th section into the pipe shed guiding hole completely by using a pushing machine tool, wherein the tail of the steel pipe of the pipe shed of the m-th section is flush with the hole opening of the pipe shed guiding hole, and the whole pipe shed steel pipe is installed;
s7: and repeating the steps S1 to S6 until all the steel pipes of the pipe shed are installed.
2. The method for installing and constructing the tunnel reinforcement pipe shed sections according to claim 1, which is characterized by comprising the following steps:
between steps 402 and 403 are the following steps: welding the seam between the front end of the steel pipe of the later section of pipe shed and the tail end of the steel pipe of the former section of pipe shed and polishing the seam to be smooth; and then the middle part of the connecting steel pipe is moved to the joint, and two ends of the connecting steel pipe are welded with the steel pipe of the next section of pipe shed and the steel pipe of the previous section of pipe shed respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310230914.6A CN116181964A (en) | 2023-03-11 | 2023-03-11 | Sectional installation construction method for tunnel reinforcement pipe shed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310230914.6A CN116181964A (en) | 2023-03-11 | 2023-03-11 | Sectional installation construction method for tunnel reinforcement pipe shed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116181964A true CN116181964A (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310230914.6A Pending CN116181964A (en) | 2023-03-11 | 2023-03-11 | Sectional installation construction method for tunnel reinforcement pipe shed |
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| Country | Link |
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| CN (1) | CN116181964A (en) |
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2023
- 2023-03-11 CN CN202310230914.6A patent/CN116181964A/en active Pending
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