CN112227417B - Construction method for bracket on pipe joint - Google Patents
Construction method for bracket on pipe joint Download PDFInfo
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- CN112227417B CN112227417B CN202011043523.6A CN202011043523A CN112227417B CN 112227417 B CN112227417 B CN 112227417B CN 202011043523 A CN202011043523 A CN 202011043523A CN 112227417 B CN112227417 B CN 112227417B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/063—Tunnels submerged into, or built in, open water
- E02D29/073—Tunnels or shuttering therefor assembled from sections individually sunk onto, or laid on, the water-bed, e.g. in a preformed trench
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Abstract
The invention discloses a construction method of a bracket on a pipe joint, and relates to the technical field of underwater tunnel construction. The method comprises the following steps: after the left top plate block is manufactured, a first left-running lane top bracket is installed, then the left top plate block, the left side wall block, the left bottom plate block and the middle left wall body are sequentially connected to form a left pipe segment, and a second left-running lane top bracket and a left-running lane bottom bracket are installed; after the right top plate block is manufactured, a first right-going lane top bracket is installed, then the right top plate block, the right side wall block, the right bottom plate block and the middle right wall body are sequentially connected to form a right pipe segment, and a second right-going lane top bracket and a right-going lane bottom bracket are installed; make left pipe segment and right pipe segment fold and form the tube coupling, installation piping lane top bracket and piping lane bottom bracket. When the bracket on the pipe joint is installed by the construction method, the installation precision of the bracket can be ensured, and the construction efficiency can be considered.
Description
Technical Field
The invention relates to the technical field of underwater tunnel construction, in particular to a construction method of a bracket on a pipe joint.
Background
At present, a pipe sinking method is often adopted during the construction of a submarine tunnel. The main construction process of the immersed tube method is as follows: prefabricating pipe sections; sealing two ends of the pipe joint by using end sealing doors; floating and transporting the pipe joints to a tunnel design position; sinking the pipe sections section by section into a pre-dug base groove, and connecting and pressing adjacent pipe sections; and (4) removing the end sealing door to communicate the pipe sections to form the whole tunnel. Specifically, for a pipe section, it includes a left-hand lane, a right-hand lane, and a pipe gallery disposed intermediate the two lanes. The port department at lane and piping lane about, is provided with a plurality of brackets, and the end seals door and bracket fixed connection and then seals lane and piping lane about to. To ensure the installation of the end-sealed door, the top and bottom corbels of the same port are required to be positioned in the same plane (generally, the flatness is required not to exceed 5 mm).
In the prior art, the following two methods are generally adopted for installing the bracket: firstly, mounting brackets one by one after the pipe joint is integrally manufactured; second, the corbels are installed at the monolithic stage of manufacture of the block of pipe joints (used to make up the pipe joints). For the first method, the influence of the assembling deviation of each pipe joint block on the bracket mounting precision can be avoided, but the construction efficiency is low because the height (generally 7.6m) of the bracket arranged at the top of the port is high and reverse installation is needed. For the second method, the construction is easy, but obviously, after the pipe joint blocks are assembled, the error accumulation is serious, and the integral installation precision of the bracket cannot be guaranteed.
Therefore, a construction method of a bracket on a pipe joint is needed to solve the above problems.
Disclosure of Invention
The invention aims to provide a construction method of a bracket on a pipe joint, which can guarantee the installation precision of the bracket and can also give consideration to the construction efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
a construction method of a bracket on a pipe joint comprises the following steps:
after the left top plate block is manufactured, a first left-going lane top bracket located on the left top plate block is installed, then the left top plate block, a left side wall block, a left bottom plate block and a middle left wall body are sequentially connected to form a left pipe segment with a left-going lane, and a second left-going lane top bracket located on the left side wall block and a left-going lane bottom bracket located on the left bottom plate block and the left side wall block are installed;
after the right top plate block is manufactured, a first right traffic lane top bracket positioned on the right top plate block is installed, then the right top plate block, a right side wall block, a right bottom plate block and a middle right wall body are sequentially connected to form a right pipe segment with a right traffic lane, and a second right traffic lane top bracket positioned on the right side wall block and a right traffic lane bottom bracket positioned on the right bottom plate block and the right side wall block are installed;
make left side pipe section with right side pipe section folds and forms the pipe joint, the pipe joint has and is located left side lane with the piping lane in the middle of the right side lane, installation piping lane top bracket and piping lane bottom bracket.
Optionally, before installing the top bracket of the first left-hand lane, inverting the left top plate block up and down, marking the longitudinal and transverse structure reference lines of the left top plate block, and installing the top bracket of the first left-hand lane by taking the longitudinal and transverse structure reference lines of the left top plate block as positioning references;
installing before first right side carriageway top bracket, will right side roof block invert from top to bottom, mark again the longitudinal and transverse structure datum line of right side roof block, with the longitudinal and transverse structure datum line of right side roof block is the location benchmark, installs first right side carriageway top bracket.
Optionally, when the top corbel of the second left-hand lane is installed, the longitudinal structure reference line of the left tube segment is drawn, and then the top corbel of the second left-hand lane is installed by taking the longitudinal structure reference line of the left tube segment and the top corbel of the first left-hand lane as positioning references;
and when the bracket at the top of the second right lane is installed, the longitudinal structure reference line of the right pipe segment is firstly drawn, and then the longitudinal structure reference line of the right pipe segment and the bracket at the top of the first right lane are used as positioning references to install the bracket at the top of the second right lane.
When the bracket at the bottom of the pipe joint is installed, the method is as follows: after the bracket at the top of the pipe joint is installed, enabling the installed bracket at the top of the pipe joint to project vertically downwards, and installing the corresponding bracket at the bottom of the pipe joint on a target block at the projection position, wherein the target block comprises a left side wall block body, a left bottom plate block body, a right bottom plate block body and a right side wall block body;
the pipe section top corbels comprise a left lane top corbel, a right lane top corbel and the pipe gallery top corbel, the left lane top corbel comprises the first left lane top corbel and the second left lane top corbel, and the right lane top corbel comprises the first right lane top corbel and the second right lane top corbel;
pipe coupling bottom bracket include respectively with left side traffic lane top bracket, right side traffic lane top bracket with pipe rack top bracket one-to-one left side traffic lane bottom bracket right side traffic lane bottom bracket with pipe rack bottom bracket.
Optionally, when each of the top corbels of the pipe sections is vertically projected downwards, the method comprises the following steps:
taking two points on the bracket at the top of the pipe joint as projection source points, and measuring coordinates of the two projection source points by using a total station;
moving the total station by matching with a measuring light target, and finding out two projection points corresponding to the two projection source points one by one on the target block;
and determining the position of the bracket at the bottom of the pipe joint according to the coordinates of the two projection points.
Optionally, after the bracket at the top of the pipe joint or the bracket at the bottom of the pipe joint is installed, a threaded hole needs to be drilled in the pipe joint block where the bracket at the top of the pipe joint or the bracket at the bottom of the pipe joint is located, and an embedded anchor rod mechanism is installed in the threaded hole.
Optionally, when installing the top bracket of the pipe gallery, the method comprises the following steps:
drawing longitudinal and transverse structure datum lines of the pipe joint;
and taking the longitudinal and transverse structure datum lines of the pipe joints as positioning references, and installing the bracket at the top of the pipe gallery.
Optionally, when the top bracket of the second left-hand lane is installed, the first end and the second end of the chain block are respectively hooked on the left wall block and the top bracket of the second left-hand lane, and then the chain block is used for pulling the top bracket of the second left-hand lane to an installation position for installation;
when the top bracket of the second right lane is installed, the first end and the second end of the chain block are hooked on the right side wall block body and the top bracket of the second right lane respectively, and then the chain block is used for pulling the top bracket of the second right lane to an installation position for installation;
installation during piping lane top bracket, will earlier chain block's first end hook arrives left side roof block or on the right side roof block, will chain block's second end hook arrives piping lane top bracket recycles chain block will piping lane top bracket is drawn to mounted position in order to install.
Optionally, before hooking the chain block, the following steps are performed: and (4) building a scaffold in a construction area, and hoisting the bracket at the top of the second left lane, the bracket at the top of the second right lane or the bracket at the top of the pipe gallery onto the scaffold to be installed.
Optionally, after the bracket is hoisted, the following steps are performed: need the installation the second left side traffic lane top bracket the second right side traffic lane top bracket or weld interim lug on the tube coupling block of piping lane top bracket, interim lug is used for the hook chain block's first end.
The invention has the beneficial effects that:
the invention provides a construction method of corbels on a pipe joint, wherein the corbels on the top of a first left lane and the corbels on the top of a first right lane are respectively installed in the single body manufacturing stage of a left top plate block body and a right top plate block body, so that high-altitude reverse installation is not needed, the workload can be reduced to a great extent, and the construction efficiency is ensured. Meanwhile, the bracket at the top of the second left lane and the bracket at the bottom of the left lane are installed after the left pipe section is formed, so that the installation accuracy of the bracket corresponding to the left lane can be ensured; because the bracket at the top of the second right lane and the bracket at the bottom of the right lane are installed after the right pipe segment is formed, the installation accuracy of the bracket corresponding to the right lane can be ensured; because installation after left pipe segment and right pipe segment are foldd to pipe gallery top bracket and pipe gallery bottom bracket, so can guarantee the installation accuracy with the corresponding bracket of pipe gallery. Because the bracket installation accuracy of the three positions of left lane, right lane and piping lane does not influence each other, so the holistic installation accuracy of bracket has also obtained the assurance on the tube coupling.
Drawings
FIG. 1 is a schematic view of the prior art end seal door and pipe joint connection;
FIG. 2 is a schematic view of the structure in the direction A-A of FIG. 1;
FIG. 3 is an overall layout of corbels on a pipe section provided by an embodiment of the present invention;
FIG. 4 is a flow chart of a method for constructing a corbel on a pipe joint according to an embodiment of the present invention;
FIG. 5 is a schematic view of an installation structure of a top bracket of a first left-hand lane when a left roof block is inverted according to an embodiment of the invention;
FIG. 6 is a schematic view of an installation structure of a top bracket of a second left-hand lane according to an embodiment of the present invention;
FIG. 7 is a schematic view of a partial structure of a top bracket of a second left-hand lane according to an embodiment of the present invention;
FIG. 8 is a schematic view of the overall installation of the left-hand bottom corbel provided by an embodiment of the present invention;
fig. 9 is a schematic projection structure diagram of the installation of the bottom corbel of the single left-hand lane according to the embodiment of the present invention.
In the figure:
100. a left-hand lane; 200. a pipe gallery; 300. a right-hand lane; 400. end sealing the door; 401. end seal door columns;
1. a left tube segment; 11. a left top plate block; 12. a left wall block; 13. a left bottom plate block; 14. a middle left wall; 2. a right tube segment; 21. a right top plate block; 22. a right wall block; 23. a right baseplate block; 24. a middle right wall body;
3. a left-hand lane top corbel; 31. a first left lane top corbel; 32. a second left lane top corbel; 4. a bracket at the bottom of the left-hand lane; 5. a right-hand carriageway top corbel; 51. a first right-hand carriageway top corbel; 52. a bracket at the top of the second right-hand lane; 6. a bracket at the bottom of the right-hand lane; 7. a bracket at the top of the pipe gallery; 8. brackets at the bottom of the pipe gallery;
9. embedding an anchor rod mechanism; 10. a scaffold; 20. temporary lifting lugs; 30. a chain block.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
In the prior art, a pipe joint comprises a plurality of pipe joint blocks. As shown in fig. 1 to 3, a left top plate block 11, a left side wall block 12, a left bottom plate block 13 and a middle left wall 14 are connected in sequence to form a left pipe segment 1 with a left traffic lane 100. The right top plate block 21, the right wall block 22, the right bottom plate block 23 and the middle right wall 24 are connected in sequence to form a right pipe section 2 with a right traffic lane 300. The left pipe section 1 and the right pipe section 2 are folded to form a complete pipe section. In this pipe section, the pipe gallery 200 is located intermediate the left and right traffic lanes 100, 300.
The port department at left lane 100, piping lane 200 and right lane 300 covers respectively and is equipped with one and ends the door 400 that seals, and every end seals door 400 and all includes a plurality of end and seals door stand 401. Taking the end sealing doors 400 at the pipe gallery 200 as an example, as shown in fig. 2, the upper end of each end sealing door upright 401 is connected with one pipe gallery top bracket 7, and the lower end of each end sealing door upright 401 is connected with one pipe gallery bottom bracket 8. Pipe gallery top bracket 7 and pipe gallery bottom bracket 8 need align from top to bottom, and be in the coplanar to guarantee the installation quality of the end sealing door 400 of pipe gallery 200 department. The installation requirements of the top and bottom corbels at both the left and right lanes 100 and 300 are the same as at the pipe gallery 200 and will not be described further herein.
The embodiment provides a construction method of a bracket on a pipe joint, which is used for installing the bracket on the pipe joint.
To clarify the construction method more clearly, the following description will be made of the overall arrangement of the corbels on the pipe joints: the bracket on the pipe joint comprises a bracket at the top of the pipe joint and a bracket at the bottom of the pipe joint. As shown in fig. 3, the pipe section top bracket includes a left lane top bracket 3, a right lane top bracket 5, and a pipe gallery top bracket 7, the left lane top bracket 3 includes a first left lane top bracket 31 and a second left lane top bracket 32, and the right lane top bracket 5 includes a first right lane top bracket 51 and a second right lane top bracket 52. The bracket at the bottom of the pipe joint comprises a bracket 4 at the bottom of the left lane, a bracket 6 at the bottom of the right lane and a bracket 8 at the bottom of the pipe rack. Wherein, left side traffic lane bottom bracket 4, right side traffic lane bottom bracket 6 and piping lane bottom bracket 8 correspond from top to bottom with left side traffic lane top bracket 3, right side traffic lane top bracket 5 and piping lane top bracket 7 one-to-one respectively.
Further, as shown in fig. 3 to 9, the construction method provided by this embodiment mainly includes the following steps:
after the left head plate block 11 is manufactured, the first left-hand roadway top bracket 31 located on the left head plate block 11 is installed. After the first left-going lane top bracket 31 is installed, a left top plate block 11, a left side wall block 12, a left bottom plate block 13 and a middle left wall 14 are sequentially connected to form a left pipe segment 1, and a second left-going lane top bracket 32 located on the left side wall block 12 and a left-going lane bottom bracket 4 located on the left top plate block 11 and the left side wall block 12 are installed;
after the right top plate block 21 is manufactured, a first right roadway top bracket 51 positioned on the right top plate block 21 is installed, then the right top plate block 21, the right side wall block 22, the right bottom plate block 23 and the middle right wall 24 are sequentially connected to form a right pipe section 2, and a second right roadway top bracket 52 positioned on the right side wall block 22 and a right roadway bottom bracket 6 positioned on the right top plate block 21 and the right side wall block 22 are installed;
make left pipe section 1 and right pipe section 2 fold and form the tube coupling, install pipe gallery top bracket 7 and pipe gallery bottom bracket 8 again.
In the above construction, since the first left-hand lane top bracket 31 is installed at the single manufacturing stage of the left roof block 11 and the first right-hand lane top bracket 51 is installed at the single manufacturing stage of the right roof block 21, it is not necessary to install the brackets at both positions in the opposite direction from each other. In practice, the first left lane top bracket 31 and the first right lane top bracket 51 occupy a larger proportion of the top brackets, so that the workload can be reduced to a great extent, and the construction efficiency is ensured.
Meanwhile, since the second left lane top bracket 32 and the left lane bottom bracket 4 are installed after the left pipe segment 1 is formed, the installation accuracy of the bracket corresponding to the left lane 100 can be ensured. Similarly, since the second right traffic lane top bracket 52 and the right traffic lane bottom bracket 6 are installed after the right pipe segment 1 is formed, the installation accuracy of the bracket corresponding to the right traffic lane 300 can be ensured; since the pipe gallery top bracket 7 and the pipe gallery bottom bracket 8 are installed after the left pipe segment 1 and the right pipe segment 2 are folded, the installation accuracy of the bracket corresponding to the pipe gallery 200 can be ensured. It can be understood that, because the installation of the three end sealing doors 400 on the pipe joints is independent, the installation accuracy of the corbels at the three positions of the left lane 100, the pipe gallery 200 and the right lane 300 is not affected by each other, so that the overall installation accuracy of the corbels on the pipe joints can be ensured.
To more clearly illustrate the construction method, the following explains the specific implementation process of the method with reference to fig. 3 to 9.
First, at the single body manufacturing stage of the left head plate block 11, the first left-hand lane top bracket 31 is installed. At the single body manufacturing stage of the right head plate block 21, the first right-hand roadway top bracket 51 is installed.
Taking the left top plate block 11 as an example, the installation process of the first left-driving lane top bracket 31 is as follows:
(1) after the left top plate block 11 is manufactured, the left top plate block 11 is transported to an outfield in a tire-removing way;
(2) hoisting the left top plate block 11 to be upside down, namely, as shown in fig. 5, enabling the mounting position of the bracket 31 at the top of the first left-going lane to be upward;
(3) checking and painting longitudinal and transverse structure reference lines of the left top plate block body 11 according to the size of the left top plate block body 11;
(4) positioning and welding each first left lane top bracket 31 according to a bracket installation drawing by taking a structural datum line of the left top plate block 11 as a reference;
(5) according to the opening on the bracket 31 at the top of the first left-going lane, a portable magnetic drill is used for drilling a screw hole on the left top plate block 11;
(6) and an embedded anchor rod mechanism 9 (comprising an embedded anchor rod, a nut and an anchor plate) is arranged at the position of the screw hole.
Referring to the installation process of the first left lane top bracket 31, the installation of the first right lane top bracket 51 may be completed, which is not described herein again.
After the first left-hand lane top bracket 31 is installed, the left top plate block 11, the left side wall block 12, the left bottom plate block 13 and the middle left wall 14 are sequentially connected to form a left pipe segment 1, and the second left-hand lane top bracket 32 and the left-hand lane bottom bracket 4 are installed.
After the second right traffic lane top bracket 51 is installed, the right top plate block 21, the right wall block 22, the right bottom plate block 23 and the middle right wall 24 are sequentially connected to form the right pipe section 2, and the second right traffic lane top bracket 52 and the right traffic lane bottom bracket 6 are installed.
Taking the installation of the second left-going lane top corbel 32 and the left-going lane bottom corbel 4 as an example, with reference to fig. 6-8, the specific installation process is as follows:
(1) building a scaffold 10 in a construction area;
(2) a temporary lifting lug 20 is arranged on the left wall block body 12;
(3) hooking a first end of a chain block 30 on the temporary lifting lug 20, hooking a second end on a top bracket 32 of the second left-going lane, and hoisting the top bracket 32 of the second left-going lane to the scaffold 10 through the chain block 30;
(4) drawing a longitudinal structure datum line of the left tube segment 1;
(5) taking a longitudinal structure reference line of the left pipe segment 1 and a top bracket 31 of the first left lane as positioning references, hoisting a top bracket 32 of the second left lane to an installation position through a chain block 30 according to a bracket installation drawing, and fixing the top bracket 32 of the second left lane by adopting tack welding;
(6) welding and fixing a second left-running lane top bracket 32;
(7) as shown in fig. 8, the left-going lane top bracket 3 is used as a positioning reference, the left-going lane top bracket 3 is vertically projected downwards, and the left-going lane bottom bracket 4 is mounted on the left side wall block 12 and the left bottom plate block 13 where the projection positions are located;
(8) and measuring and checking the overall accuracy of the bracket by using a total station, wherein the overall flatness is required to be less than or equal to 5mm, and the inclination of the bracket on the same line up and down is required to be less than or equal to 5 mm.
(9) Drilling screw holes on the left wall block body 12 according to the holes on the bracket 32 at the top of the second left-going lane;
(10) an embedded anchor rod mechanism 9 is arranged at the position of the screw hole;
(11) the scaffold 10 is removed.
In this embodiment, the standard lifting amount of the chain block 30 is 1 ton to meet the bearing requirement. And when hoisting every second left traffic lane top bracket 32, all use three chain block 30 to guarantee the stability of hoist and mount.
Optionally, with reference to fig. 9, taking an example of a second left-lane top corbel 32 on the left wall block 12, when the downward vertical projection is performed, the following process is specifically included:
(1) the coordinates of the top leg 32 of the second left hand lane are measured using a total station, taking two points A (x) on the leg1，y1，z1) And B (x)2，y2，z2) As a projection source point;
(2) using the measuring light target, moving the total station to find out projection points A ' (x ') corresponding to the points A and B one by one on the left wall block 12 at the bottom of the left lane 100 '1，y′1，z′1) And B '(x'2，y′2，z′2) The position of the corresponding left-side lane bottom bracket 4 can be confirmed according to A 'and B', so that the second left-side lane top bracket 32 on the left side wall block 12 and the left-side lane bottom bracket 4 are on the same vertical line.
Referring to the installation process of the second left lane top bracket 32 and the left lane bottom bracket 4, the installation of the second right lane top bracket 52 and the right lane bottom bracket 6 can be completed, which is not described herein again.
And after the left-going lane top bracket 3, the left-going lane bottom bracket 4, the right-going lane top bracket 5 and the right-going lane bottom bracket 6 are installed, the left pipe section 1 and the right pipe section 2 are folded to form a pipe section. Afterwards, carry out the installation of piping lane top bracket 7 and piping lane bottom bracket 8, specific installation as follows:
(1) scribing a longitudinal datum line and a transverse datum line of the pipe joint;
(2) installing a bracket 7 at the top of the pipe gallery by taking longitudinal and transverse datum lines of the pipe joints as positioning references, and constructing a scaffold 10 and using a chain block 30 in a matching manner during installation;
(3) according to the trompil of piping lane top bracket 7, join in marriage the drilling screw hole to left roof block 11 and the right roof block 21 that are located piping lane 200 top to pre-buried stock 9, nut and anchor slab of installation.
(4) Dismantling the scaffold 10;
(5) mounting a bracket 8 at the bottom of the pipe gallery by taking the bracket 7 at the top of the pipe gallery as a positioning reference, wherein the bracket 4 at the bottom of the left lane can be referred to in the specific process, and the detailed description is omitted;
(6) according to the hole opening of the bracket 8 at the bottom of the pipe gallery, a magnetic drill is used for drilling screw holes in the left bottom plate block body 13 and the right bottom plate block body 23 at the bottom of the pipe gallery 200, and an embedded anchor rod mechanism 9 is installed;
(7) the total station is used for measuring the integral installation precision of the bracket at the position of 200 of the pipe gallery, the planeness is required to be less than or equal to 5mm, and the inclination of the bracket on the same line up and down is required to be less than or equal to 5 mm.
After the installation of the bracket 7 at the top of the pipe gallery and the bracket 8 at the bottom of the pipe gallery is completed, all the brackets on the pipe joints are installed, and the final effect is shown in fig. 3 and is not described again.
In summary, the present embodiment provides a construction method of corbels on pipe joints, by installing the first left lane top corbel 31 at the single manufacturing stage of the left top plate block 11 and installing the first right lane top corbel 51 at the single manufacturing segment of the right top plate block 21, the overhead reverse installation workload can be greatly reduced, and the construction efficiency is ensured.
Meanwhile, since the second left lane top bracket 32 and the left lane bottom bracket 4 are installed after the left pipe segment 1 is formed, the installation accuracy of the bracket corresponding to the left lane 100 can be ensured; since the second right traffic lane top bracket 52 and the right traffic lane bottom bracket 6 are installed after the right pipe segment 2 is formed, the installation accuracy of the bracket corresponding to the right traffic lane 300 can be ensured; because piping lane top bracket 7 and piping lane bottom bracket 8 are installed after left pipe segment 1 and right pipe segment 2 fold, so can guarantee the installation accuracy with the corresponding bracket of piping lane 200, finally guaranteed the whole installation accuracy of bracket on the pipe segment.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (10)
1. A construction method of a bracket on a pipe joint is characterized by comprising the following steps:
after the left top plate block (11) is manufactured, a first left-going lane top bracket (31) located on the left top plate block (11) is installed, then the left top plate block (11), a left side wall block (12), a left bottom plate block (13) and a middle left wall body (14) are sequentially connected to form a left pipe section (1) with a left-going lane (100), a second left-going lane top bracket (32) located on the left side wall block (12) and left-going lane bottom brackets (4) located on the left bottom plate block (13) and the left side wall block (12) are installed;
after the right top plate block (21) is manufactured, a first right roadway top bracket (51) located on the right top plate block (21) is installed, then the right top plate block (21), a right side wall block (22), a right bottom plate block (23) and a middle right wall body (24) are sequentially connected to form a right pipe section (2) with a right roadway (300), and a second right roadway top bracket (52) located on the right side wall block (22) and a right roadway bottom bracket (6) located on the right bottom plate block (13) and the right side wall block (22) are installed;
make left side pipe section (1) with right side pipe section (2) fold and form the pipe joint, the pipe joint has and is located left side traffic lane (100) with pipe gallery (200) in the middle of right side traffic lane (300), installation pipe gallery top bracket (7) and pipe gallery bottom bracket (8).
2. The construction method of the bracket on the pipe joint according to claim 1, characterized in that before the first left-going lane top bracket (31) is installed, the left top plate block (11) is turned upside down, then the longitudinal and transverse structure reference lines of the left top plate block (11) are drawn, and the first left-going lane top bracket (31) is installed by taking the longitudinal and transverse structure reference lines of the left top plate block (11) as a positioning reference;
installing before first right side carriageway top bracket (51), will right side roof block (21) invert from top to bottom, mark again the vertical and transverse structure datum line of right side roof block (21), with the vertical and transverse structure datum line of right side roof block (21) are the location benchmark, install first right side carriageway top bracket (51).
3. The construction method of the bracket on the pipe joint according to claim 1, characterized in that when the second left-going lane top bracket (32) is installed, the longitudinal structure reference line of the left pipe section (1) is marked, and then the second left-going lane top bracket (32) is installed by taking the longitudinal structure reference line of the left pipe section (1) and the first left-going lane top bracket (31) as positioning references;
when installing second right side traffic lane top bracket (52), draw earlier the longitudinal structure datum line of right side pipe section (2), again with the longitudinal structure datum line of right side pipe section (2) with first right side traffic lane top bracket (51) is the location benchmark, installs second right side traffic lane top bracket (52).
4. The construction method of the corbel on the pipe joint according to claim 1, characterized in that the corbel at the bottom of the pipe joint is installed by the following method: after the bracket at the top of the pipe joint is installed, the installed bracket at the top of the pipe joint is vertically projected downwards, and the corresponding bracket at the bottom of the pipe joint is installed on a target block at the projection position, wherein the target block comprises a left side wall block body (12), a left bottom plate block body (13), a right bottom plate block body (23) and a right side wall block body (22);
the pipe section top corbels comprise a left lane top corbel (3), a right lane top corbel (5) and the pipe gallery top corbel (7), the left lane top corbel (3) comprising the first left lane top corbel (31) and the second left lane top corbel (32), the right lane top corbel (5) comprising the first right lane top corbel (51) and the second right lane top corbel (52);
pipe coupling bottom bracket include respectively with left side traffic lane top bracket (3), right side traffic lane top bracket (5) and pipe rack top bracket (7) one-to-one left side traffic lane bottom bracket (4) right side traffic lane bottom bracket (6) with pipe rack bottom bracket (8).
5. The method of claim 4, wherein the step of projecting each top bracket of the pipe sections vertically downward comprises the steps of:
taking two points on the bracket at the top of the pipe joint as projection source points, and measuring coordinates of the two projection source points by using a total station;
moving the total station by matching with a measuring light target, and finding out two projection points corresponding to the two projection source points one by one on the target block;
and determining the position of the bracket at the bottom of the pipe joint according to the coordinates of the two projection points.
6. The construction method of the bracket on the pipe joint according to claim 4, characterized in that after the bracket at the top of the pipe joint or the bracket at the bottom of the pipe joint is installed, a threaded hole needs to be drilled on the block body of the pipe joint where the bracket at the top of the pipe joint or the bracket at the bottom of the pipe joint is installed, and a pre-buried anchor rod mechanism (9) needs to be installed at the threaded hole.
7. The construction method of the bracket on the pipe joint according to the claim 1, characterized in that when the bracket (7) on the top of the pipe gallery is installed, the method comprises the following steps:
drawing longitudinal and transverse structure datum lines of the pipe joint;
and taking the longitudinal and transverse structure datum lines of the pipe joints as positioning references, and installing the bracket (7) at the top of the pipe gallery.
8. The construction method of the bracket on the pipe joint according to claim 1, characterized in that when the second left-going lane top bracket (32) is installed, the first end and the second end of the chain block (30) are hooked on the left wall block (12) and the second left-going lane top bracket (32), respectively, and then the chain block (30) is used to pull the second left-going lane top bracket (32) to an installation position for installation;
when the top bracket (52) of the second right lane is installed, the first end and the second end of the chain block (30) are respectively hooked on the right side wall block body (22) and the top bracket (52) of the second right lane, and then the top bracket (52) of the second right lane is pulled to an installation position by the chain block (30) for installation;
installation during piping lane top bracket (7), will earlier the first end hook of chain block (30) arrives left side roof block (11) or on right side roof block (21), will the second end hook of chain block (30) arrives piping lane top bracket (7), recycle chain block (30) will piping lane top bracket (7) are drawn to mounted position in order to install.
9. The construction method of the bracket on the pipe joint according to claim 8, characterized in that before hooking the chain block (30), the following steps are carried out: the method comprises the steps of building a scaffold (10) in a construction area, and hoisting a second left lane top bracket (32), a second right lane top bracket (52) or a pipe gallery top bracket (7) to be installed onto the scaffold (10).
10. The method of claim 9, wherein after the corbel is hoisted, the following steps are performed: need the installation second left side traffic lane top bracket (32), second right side traffic lane top bracket (52) or temporary lug (20) of welding on the tube coupling block of piping lane top bracket (7), temporary lug (20) are used for the hook chain block's (30) first end.
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| CN202011043523.6A CN112227417B (en) | 2020-09-28 | 2020-09-28 | Construction method for bracket on pipe joint |
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| JP2826775B2 (en) * | 1991-03-04 | 1998-11-18 | 株式会社間組 | Concrete casting method of closed structure |
| CN102345299B (en) * | 2011-11-11 | 2013-08-07 | 上海市隧道工程轨道交通设计研究院 | Reusable fabricated end seal method for immersed tube tunnel |
| CN105908779B (en) * | 2016-04-25 | 2017-11-28 | 中铁隧道集团二处有限公司 | Tunnel immersed tube joint Horizontal concrete shear key preparation method |
| CN108413250A (en) * | 2018-02-06 | 2018-08-17 | 西安建筑科技大学 | A kind of pipe-line system in water pumping aerator installation process and laying and construction method |
| CN108385728B (en) * | 2018-05-10 | 2023-05-12 | 中交第一航务工程局有限公司 | Immersed tube tunnel pushing type final joint and butt joint construction method thereof |
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Application publication date: 20210115 Assignee: GUANGZHOU WENCHONG SHIPYARD Co.,Ltd. Assignor: CSSC HUANGPU WENCHONG SHIPBUILDING Co.,Ltd. Contract record no.: X2023980037695 Denomination of invention: A construction method for bracket on pipe joint Granted publication date: 20220412 License type: Common License Record date: 20230706 |