CN108708394B - Full-section support-free overlapped assembly type comprehensive pipe rack structure and construction method - Google Patents
Full-section support-free overlapped assembly type comprehensive pipe rack structure and construction method Download PDFInfo
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- CN108708394B CN108708394B CN201810491810.XA CN201810491810A CN108708394B CN 108708394 B CN108708394 B CN 108708394B CN 201810491810 A CN201810491810 A CN 201810491810A CN 108708394 B CN108708394 B CN 108708394B
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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
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
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- E02D2250/0007—Production methods using a mold
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
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Abstract
The invention relates to a full-section support-free overlapped assembly type comprehensive pipe gallery structure and a construction method, wherein the structure comprises a prefabricated overlapped top plate, a prefabricated overlapped bottom plate, a prefabricated side wall plate and a prefabricated inner wall plate; the side wall plate consists of a side wall inner leaf plate and a side wall outer leaf plate, and a tie bar is arranged between the side wall inner leaf plate and the side wall outer leaf plate; the upper end and the lower end of the inner leaf plate of the side wall are provided with reserved extension steel bars, the lower end of the outer leaf plate of the side wall is provided with reserved extension steel bars, and the inner wall plate is formed by overlapping two wall plates; the invention provides a method for avoiding vertical supporting of an assembled integral concrete pipe gallery, aiming at the problems of vertical supporting interference construction, difficult construction of an axillary angle, limited gradient of an installation site and the like in the existing assembled integral comprehensive pipe gallery technology.
Description
Technical Field
The invention relates to the technical field of municipal construction comprehensive pipe galleries, in particular to a full-section support-free overlapped assembly type comprehensive pipe gallery structure and a construction method.
Background
The technology for assembling the integral concrete pipe gallery conforms to the industrialized development of buildings and is continuously developing and perfecting. The integral concrete pipe gallery assembly technology realizes a construction mode of 'member factory processing and structure field assembling', prefabricated members such as prefabricated bottom plates, prefabricated top plates and prefabricated wall plates are split, the problems of heavy prefabricated pipe gallery members, inconvenience in assembly and the like are avoided, the problem of node water resistance is solved, the construction quality and efficiency are greatly improved, and green and energy-saving construction is realized. With the characteristics, the technology for assembling the integral concrete pipe gallery solves the problems of construction quality, efficiency and the like of the comprehensive pipe gallery, and assists the construction of the national comprehensive pipe gallery.
At present, the integral concrete pipe gallery of assembly need arrange a large amount of vertical braces when the prefabricated roof of installation pipe gallery in the construction installation, can use the bearing diagonal when installing the prefabricated wallboard of pipe gallery simultaneously, has vertical braces and bearing diagonal crisscross each other for the space of constructor operation in the pipe gallery is comparatively narrow and small, influences the construction progress, and is unfavorable for emergency and in time flees, has comparatively outstanding potential safety hazard. The fabrication of the axilla is required for the assembly of the integral concrete pipe gallery. The axillary corner cast-in-place construction mainly adopts a wood template and a steel pipe support for molding, firstly, a certain amount of supports are required to be added, and the construction difficulty is increased; and secondly, the wood formwork has the advantages of short material use period and large loss, the application of the axillary angles in the assembly of the integral concrete pipe gallery is limited, and even the axillary angles are not designed for convenient construction. The existing assembled integral type comprehensive pipe gallery technology has the problems that vertical support interference construction is difficult, construction of an axillary corner is difficult, the gradient of an installation site is limited, the application and popularization of the assembled integral type concrete pipe gallery technology are limited, and an assembled integral type comprehensive pipe gallery needs to be designed.
Disclosure of Invention
The invention provides a full-section support-free superposed assembly type comprehensive pipe gallery structure method, which is realized by adopting the following technical scheme:
a full-section support-free overlapped assembly type comprehensive pipe gallery structure comprises an assembly system and cast-in-place concrete, wherein the assembly system comprises a prefabricated overlapped top plate, a prefabricated overlapped bottom plate, a prefabricated side wall plate and a prefabricated inner wall plate; the method is characterized in that: the side wall plate consists of a side wall inner leaf plate and a side wall outer leaf plate, and a tie bar is arranged between the side wall inner leaf plate and the side wall outer leaf plate; the upper end and the lower end of the inner leaf plate of the side wall are provided with reserved extending reinforcing steel bars, the lower end of the outer leaf plate of the side wall is provided with reserved extending reinforcing steel bars, the inner wall plate is overlapped by two wall plates and is respectively an inner wall inner leaf plate and an inner wall outer leaf plate, and tie reinforcing steel bars are arranged between the inner wall inner leaf plate and the outer leaf plate of the inner wall; two ends of the superposed top plate are provided with reserved extending steel bars; the side wall inner leaf plate is provided with hidden columns, the inner wall inner leaf plate and the inner wall outer leaf plate are respectively provided with hidden columns, the superposed assembly type comprehensive pipe gallery structure further comprises an upper axillary corner and a lower axillary corner, the upper axillary corner is a cast-in-place structure, the cast-in-place structure of the upper axillary corner is formed by integrally casting a cast space formed by an upper axillary corner template and an assembly system, the upper axillary corner template is arranged at a connecting corner of the superposed top plate and the inner wall plate or the outer wall plate, and is detachably connected with the superposed top plate, the inner wall plate and the outer wall plate through bolts; the upper axillary corner template is composed of an upper axillary corner template upper template, an upper axillary corner template lower template, an upper axillary corner template side ribbed plate, an upper axillary corner template transverse ribbed plate, an upper axillary corner template middle ribbed plate and an upper axillary corner template stiffening plate; the upper axillary corner template side rib plates are arranged on two side faces of the upper axillary corner template, a plurality of upper axillary corner template transverse rib plates are transversely arranged along the upper axillary corner template, the upper axillary corner template middle rib plates are arranged in the middle of the upper axillary corner template and are parallel to the upper axillary corner template side rib plates, and the upper axillary corner template stiffening plates are arranged on the inner sides of the middle parts of the upper axillary corners; the side wall plate and the inner wall plate are connected through the connecting bolts, the side rib plates of the upper axillary corner templates are connected through the connecting bolts, the connecting bolts are arranged between the upper axillary corner templates and the side rib plates of the upper axillary corner templates, the connecting bolts are arranged on the templates above the upper axillary corner templates and are connected with the prefabricated top plate embedded parts, after the assembly system and the axillary corner templates are assembled, a pouring cavity is formed among the axillary corner templates, the side wall inner leaf plates and the inner wall outer leaf plates, concrete is poured in the pouring cavity, and concrete is poured at the joints of the superposed top plates, the side wall plates and the inner wall plates. And reinforcing steel bars are arranged in the hidden columns to reinforce the supporting strength.
The laminated bottom plate is arranged at the bottom of the pipe gallery, a reinforcing steel bar layer is laid on the upper portion of the laminated bottom plate, reserved reinforcing steel bars on the lower portions of the side panels and the inner wall panels are in lap joint with a reinforcing steel bar mesh, the laminated bottom plate is perpendicular to the side wall panels and the inner wall panels, joint corners are fixedly connected through lower axillary corner templates, the lower axillary corner templates are detachably connected with the side wall panels through bolts, a plurality of lower axillary corner templates are arranged, adjacent lower axillary corner templates are fixed through bolts, and concrete is poured at the joints of the laminated bottom plate, the side wall panels and the inner wall panels after the laminated bottom plate, the side wall panels and the inner wall panels are fixed in the assembling process; the lower axillary corner template consists of a lower axillary corner template upper template, a lower axillary corner template lower template, a lower axillary corner template side ribbed plate, a lower axillary corner template transverse ribbed plate, a lower axillary corner template middle ribbed plate and a lower axillary corner template stiffening plate; the lower axillary angle formwork side ribbed plates are arranged on the side faces of two ends of the lower axillary angle formwork, the lower axillary angle formwork middle ribbed plates and the side ribbed plates are parallel and evenly distributed in the axial direction of the lower axillary angle formwork, the lower axillary angle formwork transverse ribbed plates are perpendicular to the middle ribbed plates, the lower axillary angle formwork is evenly distributed in the vertical direction, connecting bolts between the lower axillary angle formworks are arranged on the side ribbed plates, bolts connected with the side wallboard are arranged on the lower axillary angle formwork side formwork, and a certain gap is formed between the lower axillary angle formwork and the overlapped bottom plate. .
The invention also provides a construction method of the full-section support-free superposed assembly type comprehensive pipe gallery, which is characterized by comprising the following steps:
step 1: and (6) mounting the prefabricated bottom plate. Prefabricating a bottom plate, a side wall plate, an inner wall plate and a top plate in a factory; when the design gradient of the pipe gallery is smaller, a thin sand layer is laid on the cushion layer, so that the bottom plate of the pipe gallery is more attached to the cushion layer; when the design gradient of the pipe gallery is larger, a small amount of cement-doped thin sand layer is paved on the cushion layer and is used for enabling the bottom plate of the pipe gallery to be more attached to the cushion layer;
step 2: side wall plate, interior wallboard installation and lower part axillary corner construction. Firstly, laying steel bars on a prefabricated bottom plate, installing a side wall plate and an inner wall plate, adjusting a side wall plate or inner wall plate hoisting tool to enable the side wall plate or the inner wall plate to be hoisted in a slightly inclined mode according to the design gradient condition in the installation process, firstly, dropping one corner of the side wall plate or the inner wall plate, limiting the dropping point of the other end of the side wall plate or the inner wall plate after the side wall plate or the inner wall plate is dropped, adjusting the position elevation of the dropping point of the other end of the side wall plate or the inner wall plate to be in accordance with the design inclination angle by adopting a hydraulic jack, and fixing an inclined support of the side wall plate or the inner wall plate; then, the steel bars laid on the upper part of the bottom plate are lapped with the steel bars extending out of the lower part of the side wall plate and the steel bars extending out of the lower part of the inner wall plate, and the lower axillary corner template is connected with the side wall plate or the inner wall plate through bolts;
and step 3: pouring concrete at the bottom plate and the lower axillary corner;
and 4, step 4: roof construction and installation and upper axillary corner construction. Firstly, mounting an upper axillary angle template, and fixing the template on a prefabricated wallboard through bolts; a superposed top plate is arranged at the upper part of the upper axillary angle template, and the upper axillary angle template and the top plate are fixed through bolts; the top plate extending steel bars are lapped with the upper extending steel bars of the side wall plates, and the armpit angle steel bars at the upper armpit angle parts are arranged; pouring concrete in a cavity among the side wall plates, the inner wall plates and the upper axillary corner templates;
and 5: and (5) disassembling the axillary angle steel mould when the concrete reaches enough strength, and repeating the next construction section.
In the step 2 and the step 4, the upper axillary angle template and the lower axillary angle template are installed on the hidden columns of the side wall plate and the inner wall plate, and the mechanical connecting sleeve for embedding and installing the axillary angle steel mold is arranged on the outer side of the hidden column. And reinforcing steel bars are arranged in the hidden columns to reinforce the supporting strength.
In the step 1, ink lines are flicked on the cushion layer, and the ink lines are flicked on the bottom plate; and the hanging position of the bottom plate is indexed through the ink line.
In step 2, in order to make the slope of the side wall plate or the inner wall plate correspond to the design slope set by the actual pipe gallery, the slope of the side wall plate or the inner wall plate is adjusted, and the method comprises the following steps: firstly, measuring and predicting the elevation of the falling points at two ends of a side wall plate or an inner wall plate on an installed superposed bottom plate, and placing a gasket at the lower end of the elevation of the falling points of the side wall plate or the inner wall plate; before hoisting, ink lines are sprung on the side wall plate or the inner wall plate, and when the side wall plate or the inner wall plate is hoisted, the rope length of a hoisting point is properly adjusted according to the gradient, so that the bottom surface of the side wall plate or the inner wall plate has an inclination which is approximately equal to the design degree; when the side wall plate or the inner wall plate is located, the distance between the lower end of the elevation of the location point and the lower part of the previous prefabricated outer wall plate is well controlled; keeping the position of the lower end of the elevation of the landing site unchanged; adjusting the higher end of the drop point by using a hydraulic jack according to the position relation between the pre-bouncing ink line on the surface of the side wall plate or the inner wall plate and the plumb line, and placing a gasket; and after the side wall plate or the inner wall plate is located, installing the inclined supports, adjusting and fixing, and removing the side wall plate or the inner wall plate hanging pieces.
In the step 2, the bottom axillary corner and the bottom plate are cast at one time, and then the top plate is hoisted;
and 4, placing two ends of the top plate on the top mold, pouring the cavity of the side wall plate and the top plate after the top plate is in place, and dismantling the mold for repeated construction after the concrete reaches the demolding strength.
The invention has the following beneficial effects:
the auxiliary corner formwork is characterized in that the auxiliary corner formwork is combined with stiffening steel members in a prefabricated assembly type comprehensive pipe gallery building mode, the auxiliary corner formwork can be repeatedly used, a ribbed double-skin wall structure formed by side walls and inner walls can realize a support-free system, construction procedures are reduced, engineering measure cost is reduced, and auxiliary corner pouring quality, slope installation efficiency and accuracy are guaranteed.
The problem of assemble integral utility tunnel in the construction installation, the construction is interfered to the vertical braces is solved for constructor improves greatly in the space of piping lane construction operation, reduces vertical braces's transport, builds, demolishs processes such as, improves the efficiency of construction, eliminates the not unblocked problem of passageway of fleing simultaneously, is favorable to emergency in time to flee.
The invention provides a full-section support-free construction method for a prefabricated superposed pouring assembly type concrete comprehensive pipe gallery, which solves the problem of installation of an assembly integral type comprehensive pipe gallery in different places with different gradients in the construction and installation processes. The method for adjusting the installation of the prefabricated wallboard by using the special lifting appliance for the prefabricated wallboard (adjustable), fixing one end to adjust one end and installing the prefabricated wallboard and the hydraulic jack realizes that the construction of the integral type comprehensive pipe rack can meet the requirements of higher safety, rapidness, accuracy and the like when the slope is larger and the slope is smaller, improves the progress and quality of the construction of the comprehensive pipe rack, shortens the construction period and improves the engineering benefit. Especially, when the prefabricated member is installed on a field with a large gradient, the installation speed and the accuracy of the prefabricated member are obviously improved, so that the construction quality and the construction efficiency of the comprehensive pipe gallery are ensured.
Drawings
Fig. 1 is a schematic view of the design structure of the pipe gallery in the present invention.
Fig. 2 is a schematic structural view of the side wall panel of the present invention.
FIG. 3 is a top view of the side wall panel of the present invention.
Fig. 4 is a schematic diagram of the structure of the interior wall panel of the present invention.
Fig. 5 is a schematic view of the upper axillary corner mold of the present invention.
Fig. 6 is a schematic view of the structure of the lower axillary angle mold of the present invention.
FIG. 7 is a schematic diagram of ink lines ejected from the inner wall panel of the side wall panel.
Fig. 8 is a schematic view of a detailed arrangement of part 1-1 of fig. 1.
Fig. 9 is a schematic view of a detailed arrangement of part 2-2 of fig. 1.
Description of reference numerals: 1-side wall board, 2-superimposed bottom board, 3-inner wall board, 4-superimposed top board, 5-upper axillary corner template, 6-lower axillary corner template, 7-side wall outer leaf board, 8-side wall inner leaf board, 9-side wall hidden column, 10-lap joint reinforcing steel bar, 11-side wall board upper extending reinforcing steel bar, 12-side wall board lower extending reinforcing steel bar, 13-inner wall board upper extending reinforcing steel bar, 14-inner wall board lower extending reinforcing steel bar, 15-inner wall outer leaf board, 16-inner wall inner leaf board, 17-inner wall hidden column, 18-lower axillary corner template upper template, 19-lower axillary corner template lower template, 20-lower axillary corner template side ribbed plate, 21-lower axillary corner template transverse ribbed plate, 22-lower axillary corner template middle ribbed plate, 23-lower axillary corner template stiffened plate, stiffening plate, reinforcing plate and reinforcing plate, 24-upper axillary corner template upper template, 25-upper axillary corner template lower template, 26-upper axillary corner template side ribbed plate, 27-upper axillary corner template transverse ribbed plate, 28-upper axillary corner template middle ribbed plate, 29-upper axillary corner template stiffening plate, 30-ink line, 31-cast-in-place concrete and 32-bolt.
Detailed Description
The invention will be better understood by the following description of embodiments thereof, but the applicant's specific embodiments are not intended to limit the invention to the particular embodiments shown, and any changes in the definition of parts or features and/or in the overall structure, not essential changes, are intended to define the scope of the invention.
As shown in fig. 1 to 8, the invention aims to overcome the defects, thereby providing a full-section support-free superposed assembly type comprehensive pipe gallery structure.
The invention is realized by adopting the following technical scheme:
a full-section support-free overlapped assembly type comprehensive pipe gallery structure comprises an assembly system and cast-in-place concrete, wherein the assembly system comprises a prefabricated overlapped top plate, a prefabricated bottom plate 2, a prefabricated side wall plate 1 and a prefabricated inner wall plate 3; the method is characterized in that: the side wall plate 1 is composed of a side wall inner leaf plate 8 and a side wall outer leaf plate 7, and a tie bar is arranged between the side wall inner leaf plate 8 and the side wall outer leaf plate 7; the upper end and the lower end of the side wall inner leaf plate 8 are provided with reserved extending reinforcing steel bars, the lower end of the side wall outer leaf plate 7 is provided with reserved extending reinforcing steel bars, the inner wall plate 3 is composed of an inner wall inner leaf plate and an inner wall outer leaf plate, and lap joint reinforcing steel bars are arranged between the inner wall inner leaf plate and the inner wall outer leaf plate; two ends of the superposed top plate are provided with reserved extending steel bars; the side wall inner leaf plate 8 is provided with a hidden column, the inner wall inner leaf plate and the inner wall outer leaf plate are respectively provided with a hidden column, the superposed assembly type comprehensive pipe gallery structure further comprises an upper axillary corner and a lower axillary corner, the upper axillary corner is a cast-in-place structure, the cast-in-place structure of the upper axillary corner is integrally cast and molded through a cast space formed by an upper axillary corner template 5 and a lower axillary corner template 6 and an assembly system, the upper axillary corner template 5 is arranged at a connecting corner of the superposed top plate and the inner wall plate 3 or the outer wall plate, and is detachably connected with the superposed top plate, the inner wall plate 3 and the outer wall plate through bolts; the upper axillary corner template 5 is provided with a plurality of upper axillary corner templates 5, the adjacent upper axillary corner templates 5 are fixed through bolts, and each upper axillary corner template 5 consists of an upper axillary corner template 5 upper template, an upper axillary corner template 5 lower template, an upper axillary corner template 5 side rib plate, an upper axillary corner template 5 transverse rib plate, an upper axillary corner template 5 middle rib plate and an upper axillary corner template 5 stiffening plate; the upper axillary corner template 5 side rib plates are arranged on two side surfaces of the upper axillary corner template 5, a plurality of transverse rib plates of the upper axillary corner template 5 are transversely arranged along the upper axillary corner template 5, the rib plate in the upper axillary corner template 5 is arranged in the middle of the upper axillary corner template 5 and is parallel to the upper axillary corner template 5 side rib plates, and the upper axillary corner template 5 stiffening plate is arranged on the inner side of the middle of the upper axillary corner; the side wall board 1 or the connecting bolt of the embedded part of the inner wall board 3 is arranged on the lower template of the upper axillary angle template 5, the connecting bolts between the upper axillary angle templates 5 are arranged on the side rib boards of the upper axillary angle templates 5, the connecting bolts with the embedded part of the prefabricated top board are arranged on the upper template of the upper axillary angle templates 5, after the assembly system and the axillary angle templates are installed, a pouring cavity is formed between the inner leaf board 8 of the side wall and the outer leaf board of the inner wall, concrete is poured in the pouring cavity, and concrete is poured at the joint of the overlapped top board, the side wall board 1 and the inner wall board 3.
The bottom plate 2 is arranged at the bottom of the pipe gallery, a reinforcing steel bar layer is laid on the upper portion of the superposed bottom plate 2, reserved reinforcing steel bars on the lower portions of the side panels and the inner wall plates 3 are in lap joint with a reinforcing steel bar mesh, the bottom plate 2 is perpendicular to the side wall plates 1 and the inner wall plates 3, joint corners are fixedly connected through lower axillary corner templates 6, the lower axillary corner templates are detachably connected with the side wall plates through bolts, a plurality of lower axillary corner templates 6 are arranged, adjacent lower axillary corner templates 6 are fixed through bolts, and concrete is poured at the joints of the superposed bottom plate 2, the side wall plates 1 and the inner wall plates 3 after the superposed bottom plate 2, the side wall plates 1 and the inner wall plates 3 are fixed in the assembling process; the lower axillary corner template 6 consists of an upper template 18 of the lower axillary corner template 6, a lower template 19 of the lower axillary corner template 6, side rib plates 20 of the lower axillary corner template 6, transverse rib plates 21 of the lower axillary corner template 6, middle rib plates 22 of the lower axillary corner template 6 and stiffening plates of the lower axillary corner template 6; the lower axillary corner template 6 is characterized in that side ribs are arranged on the two end sides of the lower axillary corner template 6, middle ribs and the side ribs of the lower axillary corner template 6 are parallel and are uniformly distributed in the axial direction of the lower axillary corner template 6, transverse ribs of the lower axillary corner template 6 are vertical to the middle ribs, and the lower axillary corner template 6 is uniformly distributed in the vertical direction; the connecting screws between the lower axillary angle templates 6 are arranged on the side rib plates, and the connecting bolts with the prefabricated bottom plate embedded parts are arranged on the upper templates of the lower axillary angle templates 6.
The invention also provides a construction method of the full-section support-free superposed assembly type comprehensive pipe gallery, which is characterized by comprising the following steps:
step 1: and (5) mounting the prefabricated superposed bottom plate 2. Prefabricating the overlapped bottom plate 2, the side wall plate 1, the inner wall plate 3 and the overlapped top plate in a factory; when the design gradient of the pipe gallery is smaller, a thin sand layer is laid on the cushion layer, so that the bottom plate of the pipe gallery is more attached to the cushion layer; when the design gradient of the pipe gallery is larger, a small amount of cement-doped thin sand layer is paved on the cushion layer and is used for enabling the bottom plate of the pipe gallery to be more attached to the cushion layer;
step 2: side wall board 1, interior wallboard 3 installation and lower part axillary corner construction. Firstly, laying steel bars on a prefabricated bottom plate, installing a side wall plate 1 and an inner wall plate 3, adjusting a lifting tool of the side wall plate 1 or the inner wall plate 3 according to the situation of a designed gradient in the installation process to slightly tilt and lift the side wall plate 1 or the inner wall plate 3, firstly, dropping one corner of the lifting tool, limiting the dropping point of the other end of the side wall plate 1 or the inner wall plate 3 after the dropping, adjusting the position elevation of the dropping point of the other end of the side wall plate 1 or the inner wall plate 3 by adopting a hydraulic jack to enable the dropping point to accord with the designed inclination angle, and fixing an inclined support of the side wall plate 1 or the inner wall plate 3; then, the steel bars laid on the upper portion of the superposed bottom plate 2 are lapped with the steel bars extending out of the lower portion of the side wall plate 1 and the steel bars extending out of the lower portion of the inner wall plate 3, the lower axillary corner template 6 is connected with the side wall plate 1 or the inner wall plate 3 through bolts, and the lower axillary corner template 6 is fixed with the superposed bottom plate 2 through bolts;
and step 3: pouring concrete at the bottom plate and the lower axillary corner;
and 4, step 4: and (5) construction and installation of a superposed top plate and construction of an upper axillary corner. Firstly, an upper axillary angle template 5 is installed and fixed on the prefabricated wall board through bolts; an overlapped top plate is arranged at the upper part of the upper axillary angle template 5, and the upper axillary angle template 5 and the overlapped top plate are fixed through bolts; the extended steel bars of the superposed top plate are lapped with the extended steel bars at the upper part of the side wall plate 1, and the axillary angle steel bars at the upper axillary angle part are arranged; concrete is poured in a cavity among the side wall plate 1, the inner wall plate 3 and the upper axillary corner template 5;
and 5: and (5) disassembling the axillary angle steel mould when the concrete reaches enough strength, and repeating the next construction section.
In the step 2 and the step 4, the upper axillary angle template 5 and the lower axillary angle template 6 are installed on the hidden columns of the side wall plate 1 and the inner wall plate 3, and the mechanical connecting sleeve for pre-embedding and installing the axillary angle steel mold is arranged on the outer side of the hidden column.
In the step 1, ink lines are flicked on the cushion layer, and the ink lines are flicked on the bottom plate; and the hanging position of the bottom plate is indexed through the ink line.
In step 2, in order to make the slope of the side wall plate 1 or the inner wall plate 3 correspond to the design slope set by the actual pipe gallery, the slope of the side wall plate or the inner wall plate is adjusted, and the method comprises the following steps: firstly, measuring and predicting the elevation of the falling points at two ends of a side wall plate 1 or an inner wall plate 3 on an installed laminated bottom plate 2, and placing a gasket at the lower end of the elevation of the falling points of the side wall plate 1 or the inner wall plate 3; before hoisting, ink lines 30 are sprung on the side wall plate 1 or the inner wall plate 3, and when the side wall plate 1 or the inner wall plate 3 is hoisted, the rope length of a hoisting point is properly adjusted according to the gradient, so that the bottom surface of the side wall plate 1 or the inner wall plate 3 has an inclination which is approximately equal to the designed gradient; when the side wall plate 1 or the inner wall plate 3 is in a falling position, the distance between the lower end of the elevation of the falling position point and the lower part of the previous prefabricated outer wall plate is well controlled; keeping the position of the lower end of the elevation of the landing site unchanged; adjusting the higher end of the drop point by using a hydraulic jack according to the position relation between the pre-elastic ink lines on the surfaces of the side wall plates 1 or the inner wall plates 3 and the plumb line, and placing a gasket;
after the side wall plate 1 or the inner wall plate 3 is located, the inclined strut is installed, adjusted and fixed, and the hanging piece of the side wall plate 1 or the inner wall plate 3 is removed.
In the step 2, the bottom axillary corner and the bottom plate are cast at one time, and then the top plate is hoisted;
and 4, placing two ends of the top plate on the top mold, pouring the cavity of the side wall plate 1 and the top plate after the top plate is in place, and dismantling the mold for repeated construction after the concrete reaches the demolding strength.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, equivalent change or modification made to the above embodiments according to the technical spirit of the present invention still falls within the scope of the technical solution of the present invention.
Claims (4)
1. A full-section support-free overlapped assembly type comprehensive pipe gallery structure comprises an assembly system and cast-in-place concrete, wherein the assembly system comprises a prefabricated overlapped top plate, a prefabricated overlapped bottom plate, a prefabricated side wall plate and a prefabricated inner wall plate; the method is characterized in that: the side wall plate consists of a side wall inner leaf plate and a side wall outer leaf plate, and a tie bar is arranged between the side wall inner leaf plate and the side wall outer leaf plate; the upper end and the lower end of the inner leaf plate of the side wall are provided with reserved extending reinforcing steel bars, the lower end of the outer leaf plate of the side wall is provided with reserved extending reinforcing steel bars, the inner wall plate is formed by overlapping two wall plates, the two wall plates are the inner leaf plate of the inner wall and the outer leaf plate of the inner wall, and tie reinforcing steel bars are arranged between the two wall plates; two ends of the superposed top plate are provided with reserved extending steel bars; the inner page board of the side wall is provided with embedded columns, and the inner page board of the inner wall and the outer page board of the inner wall are respectively provided with embedded columns; the superposed assembly type comprehensive pipe gallery structure further comprises an upper axillary corner and a lower axillary corner, wherein the upper axillary corner is a cast-in-place structure, the cast-in-place structure of the upper axillary corner is integrally cast and molded through a casting space formed by an upper axillary corner template and a superposed top plate, a prefabricated side wall plate or a prefabricated inner wall plate, the upper axillary corner template is arranged at the connecting corner of the superposed top plate and the inner wall plate or the outer wall plate, and is detachably connected with the superposed top plate and the inner wall plate or the outer wall plate through bolts; the upper axillary corner template is composed of an upper axillary corner template upper template, an upper axillary corner template lower template, an upper axillary corner template side ribbed plate, an upper axillary corner template transverse ribbed plate, an upper axillary corner template middle ribbed plate and an upper axillary corner template stiffening plate; the upper axillary corner template side rib plates are arranged on two side faces of the upper axillary corner template, a plurality of upper axillary corner template transverse rib plates are transversely arranged along the upper axillary corner template, the upper axillary corner template middle rib plates are arranged in the middle of the upper axillary corner template and are parallel to the upper axillary corner template side rib plates, and the upper axillary corner template stiffening plates are arranged on the inner sides of the middle parts of the upper axillary corners; connecting bolts for connecting side wall plates or inner wall plate embedded parts are arranged on the lower formwork of the upper axillary corner formwork, a plurality of connecting bolts between the upper axillary corner formwork are arranged on the side rib plate of the upper axillary corner formwork, connecting bolts for connecting prefabricated top plate embedded parts are arranged on the upper formwork of the upper axillary corner formwork, after the assembly system and the axillary corner formwork are installed, a pouring cavity is formed between the side wall inner leaf plate and the inner wall outer leaf plate, concrete is poured in the pouring cavity, and concrete is poured at the joint of the superposed top plate, the side wall plates and the inner wall plates; the overlapped bottom plate is arranged at the bottom of the pipe gallery, a reinforcing steel bar layer is laid on the upper portion of the overlapped bottom plate, reserved reinforcing steel bars on the lower portions of the side panels and the inner wall panels are in lap joint with a reinforcing steel bar mesh, the overlapped bottom plate is perpendicular to the side wall panels and the inner wall panels, joint corners are fixedly connected through lower axillary corner templates, the lower axillary corner templates are detachably connected and fixed with the prefabricated side wall panels through bolts, and a certain gap is formed between the lower axillary corner templates and the overlapped bottom plate; the lower axillary corner templates are provided with a plurality of blocks, the adjacent lower axillary corner templates are fixed through bolts, and concrete is poured at the joints of the superposed bottom plates, the side wall plates and the inner wall plates after the superposed bottom plates, the side wall plates and the inner wall plates are fixed in the assembling process; the lower axillary corner template consists of a lower axillary corner template upper template, a lower axillary corner template lower template, a lower axillary corner template side ribbed plate, a lower axillary corner template transverse ribbed plate, a lower axillary corner template middle ribbed plate and a lower axillary corner template stiffening plate; the lower axillary corner template comprises a lower axillary corner template, transverse ribbed plates and transverse ribbed plates, bolts and a bottom plate; the upper axillary angle template and the lower axillary angle template are arranged on the hidden columns of the side wall plate and the inner wall plate, and the mechanical connecting sleeve for pre-buried installation of the axillary angle steel mold is arranged on the outer side of the hidden column.
2. The construction method of the full-section support-free superposed assembly type comprehensive pipe gallery is characterized by comprising the following steps:
step 1: mounting a bottom plate;
prefabricating a bottom plate, a side wall plate, an inner wall plate and a superposed top plate in a factory; when the design gradient of the pipe gallery is smaller, a thin sand layer is laid on the cushion layer, so that the bottom plate of the pipe gallery is more attached to the cushion layer; when the design gradient of the pipe gallery is larger, a small amount of cement-doped thin sand layer is paved on the cushion layer and is used for enabling the bottom plate of the pipe gallery to be more attached to the cushion layer;
step 2: installing a side wall plate and an inner wall plate and constructing a lower axillary corner;
firstly, laying steel bars on a prefabricated bottom plate, installing a side wall plate and an inner wall plate, adjusting a side wall plate or inner wall plate hoisting tool to enable the side wall plate or the inner wall plate to be hoisted in a slightly inclined mode according to the design gradient condition in the installation process, firstly, dropping one corner of the side wall plate or the inner wall plate, limiting the dropping point of the other end of the side wall plate or the inner wall plate after the side wall plate or the inner wall plate is dropped, adjusting the position elevation of the dropping point of the other end of the side wall plate or the inner wall plate to be in accordance with the design inclination angle by adopting a hydraulic jack, and fixing an inclined support of the side wall plate or the inner wall plate; then, the steel bars laid on the upper part of the bottom plate are lapped with the steel bars extending out of the lower part of the side wall plate and the steel bars extending out of the lower part of the inner wall plate, and the lower axillary corner template is connected with the side wall plate or the inner wall plate through bolts;
and step 3: pouring concrete at the bottom plate and the lower axillary corner;
and 4, step 4: roof construction and installation and upper axillary corner construction;
firstly, mounting an upper axillary angle template, and fixing the template on a prefabricated wallboard through bolts; an overlapped top plate is arranged at the upper part of the upper axillary angle template, and the upper axillary angle template and the overlapped top plate are fixed through bolts; overlapping the extended steel bars of the superposed top plate with the extended steel bars at the upper part of the side wall plate, and arranging the axillary angle steel bars at the axillary angle part at the upper part; pouring concrete in a cavity among the side wall plates, the inner wall plates and the upper axillary corner templates;
and 5: when the concrete reaches enough strength, the axillary angle steel mould is disassembled, and the next construction section is repeated;
wherein in step 2, for making the side wall board or interior wallboard slope and actual piping lane set up the design slope corresponding, adjust its slope, the method is: firstly, measuring and predicting the elevation of the falling points at two ends of a side wall plate or an inner wall plate on an installed superposed bottom plate, and placing a gasket at the lower end of the elevation of the falling points of the side wall plate or the inner wall plate; before hoisting, ink lines are sprung on the side wall plate or the inner wall plate, and when the side wall plate or the inner wall plate is hoisted, the length of a rope of a hoisting point is properly adjusted according to the gradient, so that the bottom surface of the side wall plate or the inner wall plate is inclined to the designed gradient; when the side wall plate or the inner wall plate is located, the distance between the lower end of the elevation of the location point and the lower part of the previous prefabricated outer wall plate is well controlled; keeping the position of the lower end of the elevation of the landing site unchanged; and adjusting the higher end of the drop point by using a hydraulic jack according to the position relation between the pre-bouncing ink line on the surface of the side wall plate or the inner wall plate and the plumb line, and placing a gasket.
3. The construction method of the full-section support-free overlapped assembled comprehensive pipe gallery according to claim 2 is characterized in that in the step 2 and the step 4, the upper axillary corner template and the lower axillary corner template are installed on the hidden columns of the side wall plate and the inner wall plate, and the mechanical connecting sleeve for embedding and installing the axillary corner steel mold is arranged on the outer side of the hidden column.
4. The construction method of the full-section support-free superposed assembly type comprehensive pipe gallery according to the claim 3, characterized in that in the step 1, ink lines are popped on the cushion layer, and the ink lines are popped on the bottom plate; and the hanging position of the bottom plate is indexed through the ink line.
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| CN110747738A (en) * | 2019-10-28 | 2020-02-04 | 浙江省交通规划设计研究院有限公司 | Construction method of front anchor chamber and reinforced concrete combined type upper cover plate of suspension bridge anchorage |
| CN110952679B (en) * | 2019-12-17 | 2022-05-06 | 三一筑工科技股份有限公司 | Superimposed shear wall prefabricated member and production process thereof |
| CN111173035A (en) * | 2020-02-28 | 2020-05-19 | 无锡地铁集团有限公司 | Fabricated underground station single-side prefabricated wall plate and vertical rotation installation method |
| CN112112193B (en) * | 2020-09-25 | 2022-06-03 | 福州市城乡建总集团有限公司 | Double-sided superposed pipe gallery side wall with concealed columns and manufacturing method thereof |
| CN115262434A (en) * | 2022-09-27 | 2022-11-01 | 山西建投建筑产业有限公司 | Assembled integral four-cabin flood discharge box culvert haunching structure and construction method |
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| CN105019475B (en) * | 2015-08-06 | 2018-05-04 | 湖北宇辉新型建筑材料有限公司 | Fabricated assembly overall concrete pipe gallery and construction |
| CN106245674A (en) * | 2016-08-01 | 2016-12-21 | 中建五局第三建设有限公司 | Hollow wallboard mixes prefabricated assembled pipe gallery and construction method thereof |
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| CN106894445B (en) * | 2017-04-11 | 2018-04-06 | 吉林森煌建筑材料集团有限公司 | One kind assembling superposed type pipe gallery and its method of construction |
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