CN115125997B - Construction equipment and construction method for combined multi-cavity comprehensive pipe rack - Google Patents
Construction equipment and construction method for combined multi-cavity comprehensive pipe rack Download PDFInfo
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- CN115125997B CN115125997B CN202210917798.0A CN202210917798A CN115125997B CN 115125997 B CN115125997 B CN 115125997B CN 202210917798 A CN202210917798 A CN 202210917798A CN 115125997 B CN115125997 B CN 115125997B
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- 238000010276 construction Methods 0.000 title claims abstract description 162
- 238000005192 partition Methods 0.000 claims abstract description 48
- 238000009412 basement excavation Methods 0.000 claims abstract description 7
- 238000011065 in-situ storage Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 239000004567 concrete Substances 0.000 description 32
- 239000010410 layer Substances 0.000 description 30
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 7
- 238000009415 formwork Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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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
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The application relates to the technical field of pipe gallery construction, and discloses construction equipment of a combined multi-cavity comprehensive pipe gallery, which comprises the following components: a bracket; the sliding structure is used for supporting the bracket and driving the bracket to move; a template; the control structure is used for controlling the template to move towards the direction approaching or separating from the bracket; the application also discloses a construction method of the combined multi-cavity comprehensive pipe rack, which comprises the following steps: s1: building an enclosure structure, excavating a foundation pit, and arranging a plurality of supports along with the excavation until the excavation reaches the elevation of a bottom plate of a pipe gallery; s2: cast-in-situ construction of the pipe gallery bottom plate; s3: according to the vertical height of the pipe gallery, constructing the side wall of the pipe gallery from bottom to top in multiple layers; s4: carrying out multilayer side wall running water construction; s5: constructing a horizontal partition plate and an intermediate wall; s6: constructing a pipe gallery top plate, and simultaneously completing connection of the intermediate wall and the top plate; s7: and (3) installing a foundation structure and backfilling earthwork. The application has stronger adaptability to multi-cavity comprehensive pipe rack construction with more sub-cabins.
Description
Technical Field
The application relates to the technical field of pipe gallery construction, in particular to construction equipment and a construction method of a combined multi-cavity comprehensive pipe gallery.
Background
The underground comprehensive pipe rack is built underground in cities and is used for intensively laying public tunnels of municipal pipelines such as power, communication, broadcast television, water supply and the like. Technicians do not need to repeatedly excavate the pavement, and can repair, maintain, expand, reform and the like various pipelines in the pipe gallery; meanwhile, the rush repair time of the pipeline is greatly shortened.
In the related art, when constructing utility tunnel, adopt the template to assist the construction often, common construction template is integral multiaspect construction template, can utilize above-mentioned template to carry out the integral construction to utility tunnel, and the efficiency of construction is high, and the overall shaping effect of pipe gallery is better.
However, since the integral multi-face construction formwork is only suitable for the utility tunnel with a regular shape, a pipe tunnel with a rectangular cross section is quite common, and the formwork in the related art is not suitable for the utility tunnel needing to be divided into bins.
Disclosure of Invention
The application aims to provide the construction equipment and the construction method for the combined multi-cavity comprehensive pipe rack, which are more flexible in use compared with an integral multi-surface construction template, and meanwhile, the construction equipment can also be used for realizing multi-section running water lap joint construction by utilizing a plurality of sets of side wall construction equipment, so that the construction equipment has stronger adaptability to multi-cavity comprehensive pipe rack construction with more sub-cabins.
In a first aspect, the construction equipment of the combined multi-cavity comprehensive pipe rack provided by the application adopts the following technical scheme:
a construction equipment of a modular multi-cavity utility tunnel, the construction equipment comprising:
A bracket;
the sliding structure is arranged at the bottom of the bracket and is used for supporting the bracket and driving the bracket to move;
the template is positioned at one side of the support close to the pipe gallery enclosing structure;
The control structure is arranged on the support and used for controlling the movement of the template towards the direction approaching to or away from the support, and at least comprises an output shaft used for being connected with the template.
Through adopting above-mentioned technical scheme, construction equipment use, can erect construction equipment to the intraductal track of sliding of laying of corridor structure on, then utilize the structure that slides to drive the support and remove to appointed position department, control structure adjustment template's position begins concrete placement, after the concrete curing is accomplished, control structure adjustment template carries out the die sinking, construction equipment removes to next position construction. Compared with the integral multi-face construction template, the multi-section running water lap joint construction method is more flexible to use, meanwhile, multi-set side wall construction equipment can be utilized to realize multi-section running water lap joint construction, and the multi-section running water lap joint construction method has strong adaptability to multi-cavity comprehensive pipe gallery construction with more sub-bins.
Optionally, the support is close to one side of template and installs horizontal telescopic link, horizontal telescopic link includes base and slidable mounting at the movable rod of base, the base-mounting of horizontal telescopic link is on the support, the one end that the base was kept away from to the movable rod is connected with the template.
Through adopting above-mentioned technical scheme, when control structure drives the template and moves towards the direction that is close to or keeps away from the support, the movable rod slides on the base in step, has improved the stability of template formwork and die sinking in-process.
Optionally, a telescopic connecting rod is arranged on the support, one end of the telescopic connecting rod is hinged with the support, and the other end of the telescopic connecting rod is hinged with one end of the movable rod, which is far away from the base.
Through adopting above-mentioned technical scheme, the gliding in-process of movable rod on the base, the angle of branch changes thereupon for the movable rod can keep comparatively stable horizontality to remove, and then has improved the stability when the template moves.
Optionally, the number of the telescopic links is two, and the two telescopic links are symmetrically arranged about the horizontal telescopic link.
Through adopting above-mentioned technical scheme, the quantity of flexible connecting rod sets up to two, can cooperate the support to form isosceles triangle, has further improved the stability when movable rod moves.
Optionally, the support includes upper roof beam, lower roof beam and vertical support pole, the both ends of vertical support pole respectively with upper roof beam and the tip fixed connection of lower roof beam, control structure installs the one end that keeps away from vertical support pole at upper roof beam and lower roof beam respectively.
By adopting the technical scheme, the control structure is respectively arranged on the upper top beam and the lower top beam, so that the stress of the template is uniform, and the use is more stable.
In a second aspect, the construction method of the combined multi-cavity comprehensive pipe rack provided by the application adopts the following technical scheme:
a construction method of a combined multi-cavity comprehensive pipe rack comprises the following construction steps:
S1: building an enclosure structure, excavating a foundation pit, and arranging a plurality of supports along with the excavation until the excavation reaches the elevation of a bottom plate of a pipe gallery;
s2: cast-in-situ construction of the pipe gallery bottom plate;
S3: paving a sliding rail on a bottom plate of the pipe gallery along the length direction of the pipe gallery, erecting the construction equipment according to any one of claims 1-5 on the sliding rail, and constructing the side walls of the pipe gallery from bottom to top in multiple layers according to the vertical height of the pipe gallery;
s4: dividing each layer of pipe gallery side wall into N sections, performing multilayer flow construction on the pipe gallery side wall, and constructing the lower layer of pipe gallery side wall before the upper layer of pipe gallery side wall in the adjacent two layers of pipe gallery side walls;
S5: when the pipe gallery side wall is constructed to the elevation of the horizontal partition wall, then constructing the horizontal partition wall and the middle partition wall, paving a sliding rail, erecting construction equipment on the sliding rail, and continuing to construct the next pipe gallery side wall, wherein before constructing each pipe gallery side wall, a support affecting the construction is required to be removed;
S6: unloading the construction equipment after the construction of the side wall of the uppermost pipe gallery is completed, and then constructing a pipe gallery top plate, and simultaneously completing the connection of the intermediate wall and the top plate;
S7: and (3) installing various pipelines and foundation structures in the comprehensive pipe gallery, and backfilling earthwork at the top of the pipe gallery to finish the construction of the pipe gallery.
By adopting the technical scheme, when the side wall of the pipe gallery is constructed, the construction can be carried out according to the area by adopting a layered construction mode, the construction flexibility is higher, and the construction efficiency is improved due to the multi-layer pipe gallery running water construction; the multi-cavity comprehensive pipe rack has stronger adaptability to multi-cavity comprehensive pipe rack construction with more sub-cabins or pipe rack structures with irregular shapes.
Optionally, in S5, horizontal partition plates are disposed on two sides of the intermediate wall, and brackets are disposed on the side walls after the construction of the horizontal partition plates is completed, and a sliding rail is laid on the brackets.
Through adopting above-mentioned technical scheme, set up the bracket on the side wall, conveniently install construction equipment, and make things convenient for later stage to demolish.
Optionally, in S5, only one side of the intermediate wall is provided with a horizontal partition, a foundation pit is required to be additionally arranged at the missing part of the horizontal structure to replace a support, a bracket is arranged on the side wall, and a sliding rail is erected on the bracket.
Through adopting above-mentioned technical scheme, when the middle partition wall only has one side to be provided with horizontal baffle, in order to keep the stability of piping lane structure, need additionally set up the foundation ditch in horizontal structure missing department and trade the support, as the temporary support of intermediate partition wall, improved the security of construction.
Optionally, in S5, horizontal partition plates are disposed on two sides of the intermediate wall, and a horizontal floor slab is disposed at the elevation position of the side wall, and the sliding rail is directly laid on the horizontal floor slab.
Through adopting above-mentioned technical scheme, when pipe gallery structure construction had the horizontal floor, can directly lay the track that slides on the horizontal floor, avoid constructing the bracket structure again.
Optionally, in S5, the horizontal partition board and the intermediate partition wall are all constructed by adopting prefabricated structures, and in S6, the pipe gallery top plate is also constructed by adopting prefabricated structures.
Through adopting above-mentioned technical scheme, horizontal baffle, intermediate wall and piping lane roof all adopt prefabricated construction, can show improvement efficiency of construction.
In summary, the present application includes at least one of the following beneficial technical effects:
1. In the use process of construction equipment, the construction equipment can be erected on a sliding rail paved in a pipe gallery structure, then the sliding structure is utilized to drive the support to move to a designated position, the position of the structure adjusting template is controlled, concrete pouring is started, after concrete curing is completed, the structure adjusting template is controlled to withdraw from the mold, and the construction equipment is moved to the next position for construction. Compared with an integral multi-face construction template, the multi-section running water lap joint construction method is more flexible to use, meanwhile, multi-set side wall construction equipment can be utilized to realize multi-section running water lap joint construction, and the multi-section running water lap joint construction method has stronger adaptability to multi-cavity comprehensive pipe gallery construction with more sub-bins;
2. When the side wall of the pipe gallery is constructed, a layered construction mode is adopted, construction can be carried out according to areas, the construction flexibility is higher, and the construction method has stronger adaptability to multi-cavity comprehensive pipe gallery construction with more sub-cabins or pipe gallery structures with irregular shapes;
3. through setting up horizontal telescopic link, when control structure drives the template and is close to or keep away from the direction motion of support, the movable rod slides on the base in step, has improved the stability of template formwork and withdrawal in-process.
Drawings
FIG. 1 is a schematic view of the overall structure of construction equipment in an embodiment of the present application;
FIG. 2 is a construction flow chart of a construction method in an embodiment of the application;
FIG. 3 is a schematic view of the structure of the base plate after construction in an embodiment of the present application;
fig. 4 is a schematic structural view of the first-layer gallery sidewall constructed according to an embodiment of the application;
FIG. 5 is a schematic view of the construction of a second layer piping lane side wall in the case where both sides of the dividing wall are provided with horizontal partitions connected to the constructed piping lane side wall according to the embodiment of the present application;
FIG. 6 is a schematic view of the construction of a piping lane structure after completion in the case where horizontal spacers connected to the side walls of the constructed piping lane are provided on both sides of the partition wall according to the embodiment of the present application;
FIG. 7 is a schematic view of the construction of a second layer piping lane side wall in the case where only one side of the dividing wall is provided with a horizontal partition connected to the constructed piping lane side wall according to the embodiment of the present application;
FIG. 8 is a schematic view of the construction of a piping lane structure after completion of the construction of the present application in the case where only one side of the dividing wall is provided with a horizontal partition connected to the side wall of the constructed piping lane;
FIG. 9 is a schematic structural view of the embodiment of the application when the second layer pipe gallery side wall is constructed, wherein horizontal partition plates connected with the constructed pipe gallery side wall are arranged on both sides of the partition wall, and a horizontal floor slab exists at the elevation position of the side wall;
Fig. 10 is a schematic structural diagram of the partition wall according to the embodiment of the present application after construction of the pipe gallery structure is completed, in which horizontal partitions connected to the constructed pipe gallery side walls are provided on both sides of the partition wall, and in which a horizontal floor exists at the side wall elevation position.
Fig. 11 is a schematic structural diagram showing a multilayer piping lane side wall assembly line construction according to an embodiment of the present application.
In the figure, 1, a bracket; 11. an upper top beam; 12. a lower top beam; 13. a vertical support rod; 2. a slip structure; 21. a fixing seat; 22. a sliding wheel; 3. a template; 4. a control structure; 5. a horizontal telescopic rod; 6. a telescopic connecting rod; 7. a building envelope; 8. a first layer of concrete support; 9. a second layer of concrete support; 10. a bottom plate; 14. a first layer gallery sidewall; 15. a second layer gallery sidewall; 16. a horizontal partition; 17. an intermediate wall; 18. a slip rail; 19. changing supports of the foundation pit; 20. a bracket; 23. a horizontal floor slab; 24. and a top plate.
Detailed Description
The present application will be described in further detail with reference to fig. 1 to 11.
The embodiment of the application discloses construction equipment of a combined multi-cavity comprehensive pipe rack.
Referring to fig. 1, the construction equipment of the combined multi-cavity utility tunnel comprises a bracket 1, a sliding structure 2, a template 3 and a control structure 4, wherein the template 3 is positioned on one side, close to an enclosure structure 7, of the bracket 1, the control structure 4 is arranged on the bracket 1 and used for controlling the template 3 to move towards a direction close to or far away from the bracket 1, the control structure 4 at least comprises an output shaft used for being connected with the template 3, the sliding structure 2 is arranged at the bottom of the bracket 1 and used for bearing the bracket 1 and driving the bracket 1 to move.
In the use process of construction equipment, the construction equipment can be erected on a sliding rail 18 paved in a pipe gallery structure, then the sliding structure 2 is utilized to drive the support 1 to move to a designated position, and the control structure 4 adjusts the position of the template 3 to start constructing the side wall of the pipe gallery structure.
In the embodiment, the template 3 is a cuboid steel template, and the cuboid is suitable for construction of the side wall of the planar pipe gallery; it should be clear to those skilled in the art that the shape of the module 3 can be designed adaptively according to the shape (e.g., arc shape, etc.) of the side wall of the piping lane during the specific construction.
Specifically, the bracket 1 comprises an upper top beam 11, a lower top beam 12 and a vertical supporting rod 13, wherein two ends of the vertical supporting rod 13 are respectively and fixedly connected with the end parts of the upper top beam 11 and the lower top beam 12, and the fixed connection mode can be welding, riveting or bolting; and the upper top beam 11 and the lower top beam 12 are parallel, the vertical supporting rods 13 are vertically arranged with the upper top beam and the lower top beam, and meanwhile, two adjacent vertical supporting rods 13 are welded with cross beams, and the cross beams are matched with the vertical supporting rods 13 to form a square frame, so that the whole is stable. The control structure 4 is mounted at the ends of the upper top beam 11 and the lower top beam 12 remote from the vertical support bar 13, respectively.
Further, the control structure 4 comprises a plurality of electric telescopic rods, wherein the outer tubes of the electric telescopic rods are fixedly arranged at one ends of the upper top beam 11 and the lower top beam 12 far away from the vertical supporting rods 13, the specific installation mode can be fixed through bolts, and the piston ends of the electric telescopic rods are fixedly connected with the templates 3 through bolts. The electric telescopic rod drives the template 3 to move towards the direction close to or far away from the bracket 1 through the expansion of the piston rod, so that the electric telescopic rod has higher adjustment precision.
In order to improve the stability of the control structure 4 when driving the template 3 to move, the support 1 is also provided with a horizontal telescopic rod 5. Specifically, the horizontal telescopic rod 5 comprises a cylindrical base and a movable rod slidably mounted on the base, and one end of the movable rod is arranged on the base in a protruding manner and is fixedly connected with the template 3 through a screw. When the control structure 4 drives the template 3 to move towards the direction close to or far away from the support 1, the movable rod synchronously slides on the base, so that the stability of the template 3 in the process of supporting and withdrawing the template is improved.
Further, in order to better control the stability of the movement of the template 3, the support 1 is further provided with a telescopic connecting rod 6, one end of the telescopic connecting rod 6 is hinged with the vertical supporting rod 13 of the support 1, and the other end of the telescopic connecting rod is hinged with one end of the movable rod far away from the base. Preferably, the telescopic link 6 is a hydraulic telescopic link. In the sliding process of the movable rod on the base, the angle of the supporting rod is changed, so that the movable rod can be kept in a stable horizontal state to move, and the stability of the template 3 during the action is improved.
Preferably, the number of the supporting rods is two, and the two supporting rods are symmetrically arranged about the horizontal telescopic rod 5, and in the arrangement mode, the supporting rods 13 can be matched to form an isosceles triangle, so that the stability of the movable rod during movement is further improved.
Specifically, the sliding structure 2 comprises a fixed seat 21 and a sliding wheel 22, the fixed seat 21 is arranged at the bottom of the lower top beam 12 through bolts, the sliding wheel 22 is rotatably arranged on the fixed seat 21, when the sliding structure is specifically used, the sliding wheel 22 is matched with the sliding rail 18 on the pipe gallery structure, and under the matched action of the sliding wheel 22 and the sliding rail 18, a worker can push the bracket 1 to a designated position. In another embodiment, a driving motor may be mounted on the lower top beam 12, and the driving motor is used for driving the sliding wheel 22 to rotate, so as to realize automatic adjustment of the position of the bracket 1, and specifically, transmission and speed reduction between the driving motor and the sliding wheel 22 can be realized through a speed reducer.
The embodiment of the application also discloses a construction method of the combined multi-cavity comprehensive pipe rack.
Referring to fig. 2, the construction method of the combined multi-cavity utility tunnel comprises the following construction steps:
S1: referring to fig. 2 and 3, the building enclosure 7 is constructed, the earth excavation and the concrete support pouring of the foundation pit are alternately performed until the foundation pit is excavated to the elevation of the pipe gallery bottom plate 10, in this embodiment, the building enclosure 7 is an underground continuous wall, the concrete supports are arranged in two layers, and a first concrete support 8 and a second concrete support 9 are respectively arranged from top to bottom;
Specifically, the building enclosure 7 construction includes the following steps:
Step 1: the guide wall is constructed, the guide wall is formed by pouring reinforced concrete, the section of the guide wall is generally shaped, or is shaped, and the guide wall is used for guiding a groover, storing mud and preventing the collapse of ground surface soil;
Step 2: the method comprises the steps of excavating a groove section, and dividing an underground wall into a plurality of construction groove sections in advance before excavating the groove, wherein the length of the groove section is 3-7m; in the process of grooving, the groove is kept to be always filled with slurry; after the excavation of the tank section is finished and before the concrete of the tank section is poured, the bottom cleaning and slurry changing of the tank section are carried out so as to remove the sediment at the bottom of the tank;
step 3: placing a reinforcement cage and a joint pipe, firstly binding the reinforcement cage, hanging the reinforcement cage into the dug groove section, hanging the joint pipe into the groove section by using a crane, and driving the bottom end of the joint pipe into the bottom of the groove;
step4: pouring concrete into the groove, and pulling out the joint pipe after the concrete is poured for 2-3 hours.
The concrete support pouring comprises the following steps:
step 1: excavating a foundation trench, sequentially excavating the foundation trench along a supporting design road section by an excavator, and manually cleaning a substrate when the foundation trench is excavated to about 30cm of a design elevation;
Step 2: after the tank bottom treatment and manual bottom cleaning, if the substrate is difficult to clean up with mucky soil, 10cm thick gravels are paved on the substrate, and M5 mortar is subjected to plastering treatment with the thickness of 2cm;
step 3: binding and installing reinforcing steel bars, and lifting the reinforcing steel bars into corresponding foundation grooves after binding is completed;
Step 4: installing a template, wherein the template is installed from one end to the other end, the joint of the template is sealed by adhesive tape paper, and before concrete is poured, the template is watered and wetted and washed cleanly;
Step 5: pouring concrete, and checking the templates, the steel bars and the embedded parts again before pouring, and clearing impurities in the mould;
step 6: and (3) curing the concrete, wherein the concrete is finished after finishing, and curing work can be performed, and the covering geotextile is cured by sprinkling water during curing.
S2: the pipe gallery bottom plate 10 is constructed in a cast-in-situ manner, and the concrete construction steps are as follows:
Step 1: cushion construction, wherein in the embodiment, a pipe gallery bottom plate 10 is formed by adopting C15 plain concrete with the thickness of 100 mm;
Step 2: waterproof construction, namely, the following steps are sequentially constructed from bottom to top: leveling DSM20 mortar, RMO flexible waterproof layer, plastic film protective layer paving, C20 fine stone concrete protective layer, C35P6 reinforced concrete self-waterproof, permeability DPS spraying waterproof layer;
step 3: binding and installing structural steel bars of the bottom plate 10;
Step 4: installing a template, wherein the template is installed from one end to the other end, the joint of the template is sealed by adhesive tape paper, and before concrete is poured, the template is watered and wetted and washed cleanly;
Step 5: pouring concrete, and checking the templates, the steel bars and the embedded parts again before pouring, and clearing impurities in the mould;
step 6: and (3) curing the concrete, wherein the curing work can be performed after finishing the finishing of the concrete.
S3: referring to fig. 3 and 4, after curing of the piping lane bottom plate 10 is completed, a sliding rail 18 is laid on the piping lane bottom plate 10 along the length direction of the piping lane, in this embodiment, the sliding rail 18 is made of i-steel, the construction equipment is erected on the sliding rail 18, and in the specific working process of the construction equipment, a sliding wheel 22 is matched with the sliding rail 18, and slides on the sliding rail 18 to realize movement of the construction equipment.
Meanwhile, according to the vertical height of the pipe gallery, the pipe gallery side wall is constructed in multiple layers from bottom to top, and in order to facilitate understanding, the pipe gallery side wall is divided into an upper side wall structure and a lower side wall structure in the embodiment. Through the mode of layering construction, can make the construction more nimble, simultaneously, to the multi-chamber utility tunnel construction that has more branch storehouse, perhaps irregularly shaped utility tunnel has stronger adaptability. The side wall can be tightly attached to the enclosure structure 7 for construction.
S4: referring to fig. 11, each of the pipe rack side walls is equally divided into N sections, and among the adjacent two-layer pipe rack side walls, the lower-layer pipe rack side wall is constructed prior to the upper-layer pipe rack side wall.
Specifically, first, the first-layer pipe gallery side wall 14, namely the lower-layer side wall, is constructed, and before the first-layer pipe gallery side wall 14 is constructed, the second-layer concrete support 9 is removed, so that the influence on the construction of the pipe gallery side wall is avoided.
Further, in the construction of the first-layer piping lane side wall 14, the first-layer piping lane side wall 14 may be constructed by dividing it into N sections along the piping lane length direction. And pouring the first-section pipe gallery side wall, after the concrete curing of the first-section pipe gallery side wall is completed, removing the mould of the construction equipment, sliding along the sliding rail 18 to construct the second-section pipe gallery side wall, and repeating the steps to construct the first-section pipe gallery side wall 14.
In this embodiment, when constructing any one section from the second section pipe gallery side wall to the nth section pipe gallery side wall of the first pipe gallery side wall 14, the second pipe gallery side wall 15 can be constructed by running water at any time, the second pipe gallery side wall 15 is also divided into N sections when constructed, and each section is identical to the first pipe gallery side wall 14 in length, and the second pipe gallery side wall 15 is constructed in sequence according to sections.
S5: referring to fig. 5 and 6, when the pipe gallery side wall is constructed to the level of the horizontal partition wall 16, for convenience of understanding, in this embodiment, after the construction of the first pipe gallery side wall 14 is completed, that is, the level of the horizontal partition wall 16 is reached, the horizontal partition wall 16 and the intermediate wall 17 are constructed next.
In the embodiment, the horizontal partition plate 16 and the intermediate wall 17 are both in prefabricated structures, so that the construction efficiency can be remarkably improved, and the intermediate wall 17 at the position is made to be the lower prefabricated intermediate wall 17; and in order to avoid that the intermediate wall 17 affects the construction of the upper pipe gallery side wall, the height of the intermediate wall 17 should be flush with the height of the pipe gallery wall that has been constructed. Then paving a sliding rail 18, erecting construction equipment on the sliding rail 18, and continuing to construct the next layer of pipe gallery side wall, wherein before constructing each layer of pipe gallery side wall, a support affecting the construction is required to be removed;
Specifically, under this operating mode, namely after first layer piping lane side wall 14 concrete reaches the intensity requirement, according to piping lane cavity layout form difference, mainly can divide into following 3 operating modes:
(1) Referring to fig. 5 and 6, the pipe gallery structure includes horizontal partitions 16, that is, horizontal partitions 16 connected to the constructed pipe gallery side walls are provided on both sides of the partition wall, and in this case, foundation pit replacement supports 19 (temporary supports) are not required to be additionally provided; because the strength of the horizontal partition plate 16 is relatively low, in order to ensure the safety during construction, brackets 20 are arranged on the constructed side wall, a sliding rail 18 is erected on the brackets 20, construction equipment is erected on the sliding rail 18, and then the first concrete support 8 is removed to construct the side wall of the upper layer gallery;
(2) Referring to fig. 7 and 8, the pipe gallery structure includes a part of the horizontal partition 16, that is, only one side of the partition wall is provided with the horizontal partition 16 connected with the constructed pipe gallery side wall, and the other side is not provided with the horizontal partition 16 or other connecting platform connected with the constructed pipe gallery side wall, under the working condition, in order to avoid the problem that the horizontal support is absent at the upper pipe gallery side wall in the subsequent construction, foundation pit replacement supports 19 are additionally arranged at the missing part of the horizontal structure, and likewise, brackets 20 are arranged on the side wall, a sliding rail 18 is erected on the brackets 20, construction equipment is erected on the sliding rail 18, and then the first concrete support 8 is removed to construct the upper pipe gallery side wall;
(3) Referring to fig. 9 and 10, the pipe gallery structure includes horizontal partition plates 16, that is, two sides of the partition wall are provided with horizontal partition plates 16 connected with the constructed pipe gallery side walls, and horizontal floor plates 23 are arranged at the side wall elevation positions, because the horizontal floor plates 23 are constructed, the pipe gallery structure has higher strength, at this time, foundation pit replacement supports 19 do not need to be additionally arranged, and the horizontal floor plates 23 are also constructed by adopting prefabricated structures; because the horizontal floor 23 has relatively high strength, the sliding rail 18 can be directly paved on the horizontal floor 23, the first channel support is removed, construction equipment is erected on the sliding rail 18, and then the first channel concrete support 8 is removed to construct the upper layer gallery side wall.
S6: after the construction of the uppermost pipe gallery side wall is completed, that is, the construction of the upper pipe gallery side wall is completed, the construction equipment is unloaded, then the pipe gallery top plate 24 is lifted and constructed, in this embodiment, the pipe gallery top plate 24 is also constructed by adopting a prefabricated structure, and simultaneously, the upper prefabricated intermediate wall 17 is lifted and lifted onto the lower prefabricated intermediate wall 17 which is completed by the construction, the upper prefabricated intermediate wall 17 and the top plate 24 are connected, and the connection of the upper prefabricated intermediate wall 17 and the top plate 24 is completed;
S7: the construction method in the prior art is adopted in the step of carrying out the installation of various pipelines and foundation structures in the comprehensive pipe gallery and the backfilling of earthwork at the top of the pipe gallery, and the step is implemented by a person skilled in the art according to common knowledge and in combination with the prior art, so that the detailed description is omitted here.
The implementation principle of the embodiment of the application is as follows:
implementation principle of construction equipment: in the use process of construction equipment, the construction equipment is erected on a sliding rail 18 paved in a pipe gallery structure, then the sliding structure 2 is utilized to drive the support 1 to move to a designated position, and at the moment, the electric telescopic rod stretches to drive the template 3 to move towards the direction of the enclosure structure 7, so that the formwork is supported; then, pouring of the side wall is started, and after concrete curing is completed, the electric telescopic rod contracts to drive the template 3 to move towards a direction away from the enclosure structure 7, so that die withdrawal is realized;
Compared with the integral multi-face construction template 3, the multi-section running water lap joint construction method is more flexible to use, meanwhile, multi-section running water lap joint construction can be realized by utilizing a plurality of sets of side wall construction equipment, and the multi-section running water lap joint construction method has strong adaptability to multi-cavity comprehensive pipe gallery construction with more bins or pipe gallery structures with irregular shapes.
The implementation principle of the construction method is as follows: when the side wall of the pipe gallery is constructed, a layered and segmented construction mode is adopted, so that the construction flexibility is higher, and the adaptability is stronger; meanwhile, the horizontal partition plate 16, the intermediate wall 17, the pipe gallery top plate 24 and the horizontal floor plate 23 are all prefabricated, so that the construction efficiency can be remarkably improved.
The embodiments of the present application are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, wherein like reference numerals are used to refer to like elements throughout. Therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (6)
1. A construction method of a combined multi-cavity utility tunnel is characterized in that the construction equipment of the combined multi-cavity utility tunnel is applied,
The construction equipment includes:
A bracket (1);
The sliding structure (2) is arranged at the bottom of the bracket (1), and the sliding structure (2) is used for supporting the bracket (1) and driving the bracket (1) to move;
the template (3) is positioned on one side of the bracket (1) close to the pipe gallery enclosing structure (7);
The control structure (4) is arranged on the bracket (1) and used for controlling the template (3) to move towards a direction approaching or separating from the bracket (1), and the control structure (4) at least comprises an output shaft which is used for being connected with the template (3);
A horizontal telescopic rod (5) is arranged on one side, close to the template (3), of the support (1), the horizontal telescopic rod (5) comprises a base and a movable rod which is slidably arranged on the base, the base of the horizontal telescopic rod (5) is arranged on the support (1), and one end, far away from the base, of the movable rod is connected with the template (3);
a telescopic connecting rod (6) is arranged on the support (1), one end of the telescopic connecting rod (6) is hinged with the support (1), and the other end of the telescopic connecting rod is hinged with one end of the movable rod, which is far away from the base;
the construction method comprises the following construction steps:
S1: constructing an enclosure structure (7), excavating a foundation pit, and arranging a plurality of supports along with excavation until the foundation pit is excavated to the elevation of a pipe gallery bottom plate (10);
s2: cast-in-situ construction is performed on the pipe gallery bottom plate (10);
S3: paving a sliding rail (18) on a pipe gallery bottom plate (10) along the length direction of the pipe gallery, erecting construction equipment on the sliding rail (18), and constructing the side wall of the pipe gallery from bottom to top in multiple layers according to the vertical height of the pipe gallery;
s4: dividing each layer of pipe gallery side wall into N sections, performing multilayer flow construction on the pipe gallery side wall, and constructing the lower layer of pipe gallery side wall before the upper layer of pipe gallery side wall in the adjacent two layers of pipe gallery side walls;
S5: when the pipe gallery side wall is constructed to the elevation of the horizontal partition plate (16), then constructing the horizontal partition plate (16) and the middle partition plate (17), wherein the horizontal partition plate (16) is arranged on two sides of the middle partition plate (17), after the construction of the horizontal partition plate (16) is completed, brackets (20) are arranged on the side wall, sliding rails (18) are paved on the brackets (20), the construction equipment is erected on the sliding rails (18) to continue the construction of the next pipe gallery side wall, and the support affecting the construction of each pipe gallery side wall needs to be removed before the construction of the pipe gallery side wall is completed;
S6: unloading the construction equipment after the construction of the side wall of the uppermost pipe gallery is completed, and then constructing a pipe gallery top plate (24), and simultaneously completing the connection of the intermediate wall (17) and the pipe gallery top plate (24);
S7: and (3) installing various pipelines and foundation structures in the comprehensive pipe gallery, and backfilling earthwork at the top of the pipe gallery to finish the construction of the pipe gallery.
2. The construction method of the combined type multi-cavity utility tunnel according to claim 1, wherein the number of the telescopic connecting rods (6) is two, and the two telescopic connecting rods (6) are symmetrically arranged about the horizontal telescopic rod (5).
3. The construction method of the combined type multi-cavity comprehensive pipe rack according to claim 1, wherein the support (1) comprises an upper top beam (11), a lower top beam (12) and a vertical supporting rod (13), two ends of the vertical supporting rod (13) are fixedly connected with the end parts of the upper top beam (11) and the lower top beam (12) respectively, and the control structure (4) is arranged at one end, far away from the vertical supporting rod (13), of the upper top beam (11) and the lower top beam (12) respectively.
4. The construction method of the combined type multi-cavity utility tunnel according to claim 1, wherein in the step S5, only one side of the intermediate wall (17) is provided with a horizontal partition (16), foundation pit replacement supports (19) are required to be additionally arranged at the missing part of the horizontal structure, brackets (20) are arranged on the side walls, and sliding rails (18) are erected on the brackets (20).
5. The construction method of the combined type multi-cavity utility tunnel according to claim 1, wherein in the step S5, horizontal partition boards (16) are arranged on two sides of the intermediate wall (17), a horizontal floor (23) is arranged at the elevation position of the side wall, and the sliding rail (18) is directly paved on the horizontal floor (23).
6. The construction method of the combined type multi-cavity comprehensive pipe rack according to claim 1, wherein in the step S5, the horizontal partition plate (16) and the middle partition plate (17) are both constructed by adopting prefabricated structures, and in the step S6, the pipe rack top plate (24) is also constructed by adopting prefabricated structures.
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