CN108571011B - Pouring system and pouring method for assembled template type micro underground comprehensive pipe rack - Google Patents
Pouring system and pouring method for assembled template type micro underground comprehensive pipe rack Download PDFInfo
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- CN108571011B CN108571011B CN201810549501.3A CN201810549501A CN108571011B CN 108571011 B CN108571011 B CN 108571011B CN 201810549501 A CN201810549501 A CN 201810549501A CN 108571011 B CN108571011 B CN 108571011B
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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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The application provides a pouring system for assembling a template type miniature underground comprehensive pipe gallery, which comprises a reinforcement cage, an inner template, an outer template and a support module, wherein the reinforcement cage is prepared on a site outside a foundation pit; the application also provides a pouring method of the pouring system of the assembled template type micro underground comprehensive pipe rack; according to the method, the reinforcement cage is firstly manufactured on the site outside the foundation pit for burying the miniature underground comprehensive pipe rack, then the pouring template is installed on the reinforcement cage, then the pouring system is hung in the foundation pit by using the crane, then concrete is poured, the bottom plate, the side wall and the top plate are integrally formed, and then vibration, maintenance and form removal are carried out, so that the advantages and the disadvantages of the traditional all-site construction method and the prefabricated-before-installation method are balanced, a new construction mode is formed, and the method has the characteristics of saving time, labor and cost and being more excellent.
Description
Technical Field
The invention relates to the technical field of underground comprehensive pipe racks, in particular to a pouring system and a pouring method of an assembled template type miniature underground comprehensive pipe rack.
Background
The underground utility tunnel is a public tunnel which is built underground in cities and is used for intensively laying municipal pipelines such as power, communication, broadcast television, water supply, water drainage and the like. The underground comprehensive pipe gallery can effectively avoid the phenomenon of 'zipper road', so that technicians do not need to repeatedly excavate the road surface, and various pipelines can be salvaged, maintained, expanded, reformed and the like in the pipe gallery; meanwhile, the rush repair time of the pipeline is greatly shortened.
Currently, open cut construction is often adopted for miniature underground utility tunnel (the width and height of the cross section are about 1.8m×1.8 m).
At present, two main pouring construction methods exist for the underground comprehensive pipe rack: the first is the whole field construction method: the method has the advantages of time and labor consumption and long construction period, and is obvious in site steel reinforcement cage binding, site template installation and site concrete pouring; the second method is a prefabricated and then installed method: the method comprises the steps of prefabricating a pipe gallery of one section, transporting to the site, hoisting, sealing, pouring and connecting the pipe gallery of one section into a complete underground comprehensive pipe gallery, wherein the method is obviously characterized in that a special prefabricating die is needed in the early stage, the cost of the die is high in the early stage, heavy prefabricated members are needed to be transported and hoisted in the later stage, special transportation machinery and hoisting machinery are needed, and the transportation cost and the hoisting cost are high. The two pouring construction methods have advantages and disadvantages.
Therefore, how to provide a miniature underground utility tunnel with more time-saving, trouble-saving and cost-saving performance and better cost performance during pouring construction is a technical problem that needs to be solved by the technicians in the field.
Disclosure of Invention
The embodiment of the invention aims to provide a pouring system for assembling a template type miniature underground comprehensive pipe gallery. Another object of the embodiments of the present invention is to provide a pouring method for assembling a modular miniature underground utility tunnel.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the pouring system of the assembled formwork type micro underground utility tunnel comprises a reinforcement cage, an inner formwork, an outer formwork and a support module, wherein the reinforcement cage is used for pouring in the micro underground utility tunnel, the support module is used for supporting and fixing the inner formwork and the outer formwork, and the reinforcement cage is manufactured on a field outside a foundation pit;
the reinforcement cage is of an integrated structure and comprises a bottom plate reinforcement cage, a side wall reinforcement cage and a top plate reinforcement cage, wherein the bottom plate reinforcement cage is used for being poured into a bottom plate, the side wall reinforcement cage is used for being poured into a side wall, and the top plate reinforcement cage is used for being poured into a top plate;
and the bottom plate inner template is installed on the upper long and wide surface of the bottom plate reinforcement cage through the support template, the side wall inner template and the side wall outer template are installed on the side wall reinforcement cage through the support template, the top plate inner template is installed on the lower long and wide surface of the top plate reinforcement cage through the support template, and the support rod supports the top plate inner template from the lower side.
Preferably, the formwork support comprises a first hollow pipe and two mounting plates for mounting and fixing the inner formwork and the outer formwork, wherein the two mounting plates are respectively arranged at two ends of the first hollow pipe;
at least two pairs of first through holes for the steel bars to pass through are arranged on the pipe wall of the first hollow pipe, at least two pairs of second through holes for the steel bars to pass through are also arranged on the pipe wall of the first hollow pipe, the axial central connecting line of any pair of first through holes is parallel to the cross section of the first hollow pipe, the axial central connecting line of any pair of second through holes is parallel to the cross section of the first hollow pipe, and the axial central connecting line of any pair of first through holes and the axial central connecting line of any pair of second through holes are mutually perpendicular.
Preferably, the side wall reinforcement cage is of a space three-dimensional cage structure formed by connecting at least two layers of vertically placed reinforcement nets which are overlapped at least inside and outside, and each layer of vertically placed reinforcement net is formed by connecting a plurality of horizontal reinforcement bars and a plurality of vertical reinforcement bars in a cross manner;
the horizontal steel bars in one layer of vertically placed steel bar mesh positioned on the inner side pass through a pair of first through holes on the inner side, and the vertical steel bars in the same layer of vertically placed steel bar mesh positioned on the inner side pass through a pair of second through holes on the inner side;
the horizontal steel bars in one layer of the vertically placed steel bar net positioned at the outer side pass through a pair of first through holes at the outer side, and the vertical steel bars in the same layer of the vertically placed steel bar net positioned at the outer side pass through a pair of second through holes at the outer side;
the side wall inner template is detachably fixed on the inner disc surface of the mounting disc positioned at the inner side through a self-tapping screw, and the side wall outer template is detachably fixed on the outer disc surface of the mounting disc positioned at the outer side through the self-tapping screw;
the horizontal steel bars and the vertical steel bars in each layer of vertically placed steel bar net are connected together through a plurality of support modules to form connection between the steel bars, and at least the inner layer and the outer layer of vertically placed steel bar net are connected together through the support modules to form connection between the net and the net.
Preferably, the top plate reinforcement cage is of a space three-dimensional cage structure formed by connecting at least two layers of overlapped horizontal reinforcement meshes, and each layer of horizontal reinforcement mesh is formed by connecting a plurality of horizontal transverse reinforcements with a plurality of horizontal longitudinal reinforcements in a cross manner;
the horizontal transverse steel bars and the horizontal longitudinal steel bars in each layer of horizontally placed steel bar nets are connected together through a plurality of support modules to form connection between the steel bars, and at least the upper layer and the lower layer of horizontally placed steel bar nets are connected together through the support modules to form connection between the nets.
Preferably, the bottom plate reinforcement cage is of a space three-dimensional cage structure formed by connecting at least two layers of overlapped horizontal reinforcement nets, and each layer of horizontal reinforcement net is formed by connecting a plurality of horizontal transverse reinforcements with a plurality of horizontal longitudinal reinforcements in a cross manner;
the horizontal transverse steel bars and the horizontal longitudinal steel bars in each layer of horizontally placed steel bar nets are connected together through a plurality of support modules to form connection between the steel bars, and at least the upper layer and the lower layer of horizontally placed steel bar nets are connected together through the support modules to form connection between the nets.
Preferably, the first hollow tube and the two mounting plates are of split structures, the two mounting plates are respectively arranged at two ends of the first hollow tube through the two radial spherical plain bearings, the two ends of the first hollow tube are respectively inserted and fixed into inner rings of the two radial spherical plain bearings, and the two mounting plates are respectively sleeved on outer rings of the two radial spherical plain bearings.
Preferably, the support module further comprises a second hollow tube, the second hollow tube is bonded with the first hollow tube, the second hollow tube is parallel to the first hollow tube, two ends of the second hollow tube are open, two ends of the second hollow tube and two ends of the first hollow tube are respectively inserted and fixed in the inner rings of the two radial spherical plain bearings, and the cross section of the second hollow tube is located between the through hole channels of the pair of first through holes and the through hole channels of the pair of second through holes so as to prevent the second hollow tube from shielding the first through holes and the second through holes and causing difficult insertion of reinforcing steel bars.
Preferably, the support module is made of hard plastic.
Preferably, the radial spherical plain bearing is made of hard plastic.
A pouring method of an assembled template type micro underground comprehensive pipe rack comprises the following steps:
1) Firstly, excavating a foundation pit, and then sequentially paving a concrete leveling cushion layer, a waterproof coiled material and a fine stone concrete protective layer on the inner bottom of the foundation pit from bottom to top;
simultaneously preparing the pouring system;
2) After the fine stone concrete protective layer is maintained and the mould is removed, hanging the pouring system prepared in the step 1) on the fine stone concrete protective layer in the foundation pit by using a crane;
3) Then pouring concrete, integrally pouring and forming the bottom plate, the side wall and the top plate, vibrating, curing and removing the mould to obtain a segmented pipe gallery;
5) And similarly, pouring the next segmented pipe gallery in the foundation pit, and sealing and connecting the segmented pipe galleries in series to obtain the assembled template type micro underground comprehensive pipe gallery.
The application provides a pouring system for an assembled template type miniature underground comprehensive pipe gallery, which comprises a reinforcement cage, an inner template, an outer template and a formwork, wherein the reinforcement cage is prepared on a site outside a foundation pit;
the application also provides a pouring method of the pouring system of the assembled template type micro underground comprehensive pipe rack;
according to the construction method, the reinforcement cage is firstly manufactured on the site outside the foundation pit for burying the miniature underground comprehensive pipe rack, then the casting template is installed on the reinforcement cage to form a set of integral casting system, then the casting system is hung in the foundation pit by using the crane, then concrete is cast, the bottom plate, the side wall and the top plate are integrally cast to form, and then vibration, maintenance and form removal are carried out, so that the advantages and disadvantages of the traditional all-in-site construction method and the prefabricated-before-installation method are balanced, a new construction mode and a balanced scheme are formed, and the construction method has the characteristics of saving more time, labor and cost, and being more excellent in cost performance.
Drawings
Fig. 1 is a schematic structural diagram of a side wall reinforcement cage, a side wall inner formwork, a side wall outer formwork and a support module in a pouring system for assembling a formwork type miniature underground utility tunnel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a side wall reinforcement cage, a side wall inner formwork, a side wall outer formwork and a support module in a pouring system for assembling a formwork type miniature underground utility tunnel according to another embodiment of the present invention.
In the figure: 1 side wall inner template, 2 side wall outer template, 3 horizontal steel bar, 4 vertical steel bar,
5 modules, 501 first hollow tube, 502 mounting plate,
6 a self-tapping screw is used for the self-tapping screw,
7 radial spherical plain bearing, 701 inner race, 702 outer race.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center," "axial," "radial," "longitudinal," "transverse," "length," "width," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second" may include one or more such features, either explicitly or implicitly.
In the present invention, unless expressly stated or limited otherwise, a first feature being "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is less level than the second feature.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a side wall reinforcement cage, a side wall inner formwork, a side wall outer formwork and a supporting module in a pouring system for assembling a formwork type miniature underground utility tunnel according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of a side wall reinforcement cage, a side wall inner formwork, a side wall outer formwork and a support module in a pouring system for assembling a formwork type miniature underground utility tunnel according to another embodiment of the present invention.
In the prior art, the miniature underground utility tunnel consists of a bottom plate, side walls and a top plate.
In the application, the template is a template for pouring concrete, the template is an inner template and an outer template which are used on the inner side and the outer side of a wall, the template is a side wall inner template 1 and a side wall outer template 2 which are used on the inner side and the outer side of a side wall, the template is a bottom plate inner template or a bottom plate outer template which are used at a bottom plate reinforcement cage, and the rest of the naming is analogized in sequence, but the template for pouring concrete is named anyhow.
The application provides a pouring system for assembling a template type miniature underground utility tunnel, which comprises a reinforcement cage, an inner template, an outer template and a support template for supporting and fixing the inner template and the outer template, wherein the reinforcement cage is prepared on a site outside a foundation pit;
the reinforcement cage is of an integrated structure and comprises a bottom plate reinforcement cage, a side wall reinforcement cage and a top plate reinforcement cage, wherein the bottom plate reinforcement cage is used for being poured into a bottom plate, the side wall reinforcement cage is used for being poured into a side wall, and the top plate reinforcement cage is used for being poured into a top plate;
and a bottom plate inner template is installed on the upper long and wide surface of the bottom plate reinforcement cage through the support template, a side wall inner template 1 and a side wall outer template 2 are installed on the side wall reinforcement cage through the support template, a top plate inner template is installed on the lower long and wide surface of the top plate reinforcement cage through the support template, and the support rod supports the top plate inner template from the lower side.
In actual construction at present, the steel reinforcement cage is mostly by the three-dimensional cage structure in space that two-layer superimposed steel reinforcement net is connected to constitute at least, every layer of steel reinforcement net comprises a plurality of horizontal reinforcing bars and a plurality of vertical reinforcing bars cross connection, wherein, the connection between the muscle of horizontal reinforcing bar and the vertical reinforcing bar in every layer of steel reinforcement net and the muscle is realized connecting through wire ligature or welding mostly, the connection between the net of the steel reinforcement net of two-layer at least is realized connecting through artifical wire ligature or welding mostly, along with economic society development and scientific and technological progress, artifical wire ligature or welded connection is more and more wasted time and energy and is spent with the cost, troublesome in labor and intensity are big, manual work and consumptive material cost are higher etc.. To this end, in one embodiment of the present application, the formwork 5 includes a first hollow pipe 501 and two mounting plates 502 for mounting and fixing the inner formwork and the outer formwork, and the two mounting plates 502 are respectively disposed at two ends of the first hollow pipe 501;
at least two pairs of first through holes for passing through the reinforcing steel bars are arranged on the pipe wall of the first hollow pipe 501, at least two pairs of second through holes for passing through the reinforcing steel bars are also arranged on the pipe wall of the first hollow pipe 501, the axial central connecting line of any pair of first through holes is parallel to the cross section of the first hollow pipe 501, the axial central connecting line of any pair of second through holes is parallel to the cross section of the first hollow pipe 501, and the axial central connecting line of any pair of first through holes is mutually perpendicular to the axial central connecting line of any pair of second through holes.
In one embodiment of the application, the side wall reinforcement cage is of a space three-dimensional cage structure formed by connecting at least two layers of vertically placed reinforcement meshes which are overlapped at least in and out, and each layer of vertically placed reinforcement mesh is formed by connecting a plurality of horizontal reinforcement bars 3 and a plurality of vertical reinforcement bars 4 in a cross manner;
the horizontal steel bars 3 in one layer of vertically placed steel bar net positioned on the inner side pass through a pair of first through holes on the inner side, and the vertical steel bars 4 in the same layer of vertically placed steel bar net positioned on the inner side pass through a pair of second through holes on the inner side;
the horizontal steel bars 3 in one layer of the vertical steel bar net positioned at the outer side pass through a pair of first through holes at the outer side, and the vertical steel bars 4 in the same layer of the vertical steel bar net positioned at the outer side pass through a pair of second through holes at the outer side;
the side wall inner template 1 is detachably fixed on the inner disc surface of the mounting disc 502 positioned at the inner side through a self-tapping screw 6, and the side wall outer template 2 is detachably fixed on the outer disc surface of the mounting disc 502 positioned at the outer side through the self-tapping screw 6;
the horizontal steel bars 3 and the vertical steel bars 4 in each layer of vertically placed steel bar nets are connected together through a plurality of support modules 5 to form connection between the steel bars, and at least the inner layer and the outer layer of vertically placed steel bar nets are connected together through the support modules 5 to form connection between the nets.
In one embodiment of the application, the top plate reinforcement cage is of a space three-dimensional cage structure formed by connecting at least two layers of overlapped horizontal reinforcement meshes, wherein each layer of horizontal reinforcement mesh is formed by connecting a plurality of horizontal transverse reinforcements and a plurality of horizontal longitudinal reinforcements in a cross manner;
the horizontal transverse steel bars and the horizontal longitudinal steel bars in each layer of horizontally placed steel bar nets are connected together through a plurality of support modules 5 to form connection between the steel bars, and at least the upper layer and the lower layer of horizontally placed steel bar nets are connected together through the support modules 5 to form connection between the nets.
In one embodiment of the application, the bottom plate reinforcement cage is of a space three-dimensional cage structure formed by connecting at least two layers of overlapped horizontal reinforcement meshes, wherein each layer of horizontal reinforcement mesh is formed by connecting a plurality of horizontal transverse reinforcement bars and a plurality of horizontal longitudinal reinforcement bars in a cross manner;
the horizontal transverse steel bars and the horizontal longitudinal steel bars in each layer of horizontally placed steel bar nets are connected together through a plurality of support modules 5 to form connection between the steel bars, and at least the upper layer and the lower layer of horizontally placed steel bar nets are connected together through the support modules 5 to form connection between the nets.
The application provides a formwork support 5 for supporting and connecting a concrete pouring reinforcement cage and a formwork, which comprises a first hollow pipe 501 and two mounting plates 502; in the application, two adjacent steel bars in each layer of steel bar mesh pass through a corresponding pair of first through holes and a corresponding pair of second through holes on the first hollow pipe 501, so that the connection between the steel bars in each layer of steel bar mesh is realized, and the connection between the meshes of at least two stacked layers of steel bar mesh is realized;
the inner template is detachably fixed on the inner disc surface of the mounting disc 502 positioned at the inner side through self-tapping screws 6, and the outer template is detachably fixed on the outer disc surface of the mounting disc 502 positioned at the outer side through self-tapping screws 6, so that the mounting support fixing of the inner template and the outer template for pouring is realized, and the mounting support fixing of the inner template and the outer template for pouring on a reinforcement cage is realized;
the wire binding machine has the characteristics of time saving, labor saving and cost saving, so that the problems of more and more time and labor saving, labor complexity, high strength, higher labor and consumable cost and the like of the traditional manual wire binding or welding connection are solved.
The larger steel reinforcement cage of volume will set up the above-mentioned formwork 5 that the quantity is more generally, and the above-mentioned formwork 5 of quantity is installed the back on the steel reinforcement cage, just appears a problem easily: the plurality of mounting plates 502 located on the inner side or the outer side are likely not to be on the same plane, so that the later mounting of the inner formwork or the outer formwork by using the tapping screw 6 is difficult, the vertical flatness of the inner formwork or the outer formwork is difficult to keep, and the vertical flatness of the concrete wall after pouring is low;
the radial spherical plain bearing 7 is arranged, so that the mounting plate 502 sleeved on the outer ring 702 of the radial spherical plain bearing 7 can swing within a certain angle range and has a certain adjustability, thereby remarkably solving the problem that the plurality of mounting plates 502 positioned on the inner side or the outer side are not positioned on the same plane, so that the vertical flatness of the inner template or the outer template in the later stage is lower, and improving the vertical flatness of the concrete wall after pouring is finished.
In one embodiment of the present application, the formwork 5 further includes a second hollow tube, the second hollow tube is bonded to the first hollow tube 501, the second hollow tube is parallel to the first hollow tube 501, two ends of the second hollow tube are open, two ends of the second hollow tube and two ends of the first hollow tube 501 are respectively inserted and fixed in the inner rings 701 of the two radial spherical bearings 7, and a cross section of the second hollow tube is located between a through hole channel of a pair of first through holes and a through hole channel of a pair of second through holes so as to avoid that the second hollow tube shields the first through holes and the second through holes from causing the steel bars to be difficult to be inserted;
the second hollow tube is provided here to facilitate positioning of the second rear form, for example: after the side wall inner template 1 is installed, then the drill bit of the electric drill sequentially penetrates through the side wall inner template 1, the second hollow pipe and the side wall outer template 2 from inside to outside, so that a through hole is formed in the side wall outer template 2, and due to the fact that the position connection relation between the second hollow pipe and the mounting plate 502 is well known, an installer can conveniently and rapidly locate the specific position of the mounting plate 502 located on the outer side, and accordingly can conveniently and rapidly know at which position to screw the self-tapping screw 6, and the mounting efficiency of the template is improved.
In one embodiment of the present application, the support 5 is of a hard plastic material.
In one embodiment of the present application, the radial spherical plain bearing 7 is made of a hard plastic material.
The application also provides a pouring method for the assembly template type miniature underground utility tunnel, which comprises the following steps:
1) Firstly, excavating a foundation pit, and then sequentially paving a concrete leveling cushion layer, a waterproof coiled material and a fine stone concrete protective layer on the inner bottom of the foundation pit from bottom to top;
simultaneously preparing the pouring system;
2) After the fine stone concrete protective layer is maintained and the mould is removed, hanging the pouring system prepared in the step 1) on the fine stone concrete protective layer in the foundation pit by using a crane;
3) Then pouring concrete, integrally pouring and forming the bottom plate, the side wall and the top plate, vibrating, curing and removing the mould to obtain a segmented pipe gallery;
5) And similarly, pouring the next segmented pipe gallery in the foundation pit, and sealing and connecting the segmented pipe galleries in series to obtain the assembled template type micro underground comprehensive pipe gallery.
The sealing serial connection of the plurality of segmented pipe galleries can be realized by filling sealing waterproof materials in vertical seams between the segments, so that the soft sealing serial connection between the segmented pipe galleries is realized, or the exposed reinforcement cage of the pouring system for the concrete to be poured and the exposed reinforcement cage of the pouring system for the immediately-adjacent poured concrete are bound and connected together before the next pouring system is poured, and then the concrete is poured, so that the pipe galleries of the front segment and the rear segment are poured into an integral concrete structure, no vertical seam exists between the segmented pipe galleries, and the hard sealing serial connection between the segmented pipe galleries is realized.
The application provides a pouring system for an assembled template type miniature underground comprehensive pipe gallery, which comprises a reinforcement cage, an inner template, an outer template and a support template 5, wherein the reinforcement cage is prepared on a site outside a foundation pit;
the application also provides a pouring method of the pouring system of the assembled template type micro underground comprehensive pipe rack;
according to the construction method, the reinforcement cage is firstly manufactured on the site outside the foundation pit for burying the miniature underground comprehensive pipe rack, then the casting template is installed on the reinforcement cage to form a set of integral casting system, then the casting system is hung in the foundation pit by using the crane, then concrete is cast, the bottom plate, the side wall and the top plate are integrally cast to form, and then vibration, maintenance and form removal are carried out, so that the advantages and disadvantages of the traditional all-in-site construction method and the prefabricated-before-installation method are balanced, a new construction mode and a balanced scheme are formed, and the construction method has the characteristics of saving more time, labor and cost, and being more excellent in cost performance.
The invention provides a plurality of technical problems and simultaneously provides a corresponding technical scheme aiming at each technical problem. The technical problems are not mutually independent and are mutually influenced, so that the technical problems can be solved simultaneously or can be obviously improved by further combining the technical problems with other technical schemes on the basis of solving the corresponding technical problems. On the basis of solving the corresponding technical problems by each independent technical scheme, a plurality of progressive technical schemes are mutually combined and overlapped, the technical schemes are mutually matched and promoted to form an integral scheme, and the obtained technical effect is far better than that of any one of the technical schemes, and the overlapping effect is obvious.
The method and the device which are not described in detail in the invention are all the prior art and are not described in detail.
The principles and embodiments of the present invention have been described herein with reference to specific examples, which are intended to be merely illustrative of the methods of the present invention and their core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (7)
1. The pouring system of the assembled template type micro underground utility tunnel comprises a reinforcement cage, an inner template, an outer template and a support module for supporting and fixing the inner template and the outer template, wherein the reinforcement cage is prepared on a site outside a foundation pit;
the reinforcement cage is of an integrated structure and comprises a bottom plate reinforcement cage, a side wall reinforcement cage and a top plate reinforcement cage, wherein the bottom plate reinforcement cage is used for being poured into a bottom plate, the side wall reinforcement cage is used for being poured into a side wall, and the top plate reinforcement cage is used for being poured into a top plate;
a bottom plate inner template is installed on the upper long and wide surface of the bottom plate reinforcement cage through the support template, a side wall inner template and a side wall outer template are installed on the side wall reinforcement cage through the support template, a top plate inner template is installed on the lower long and wide surface of the top plate reinforcement cage through the support template, and the support rod supports the top plate inner template from the lower side;
the formwork support comprises a first hollow pipe and two mounting plates for mounting and fixing the inner formwork and the outer formwork, wherein the two mounting plates are respectively arranged at two ends of the first hollow pipe;
at least two pairs of first through holes for passing through the reinforcing steel bars are arranged on the wall of the first hollow pipe, at least two pairs of second through holes for passing through the reinforcing steel bars are also arranged on the wall of the first hollow pipe, the axial central connecting line of any pair of first through holes is parallel to the cross section of the first hollow pipe, the axial central connecting line of any pair of second through holes is parallel to the cross section of the first hollow pipe, and the axial central connecting line of any pair of first through holes is mutually perpendicular to the axial central connecting line of any pair of second through holes;
the side wall reinforcement cage is of a space three-dimensional cage structure formed by connecting at least two layers of vertically placed reinforcement nets with at least two layers of vertically placed reinforcement nets, and each layer of vertically placed reinforcement net is formed by connecting a plurality of horizontal reinforcement bars and a plurality of vertical reinforcement bars in a cross manner;
the horizontal steel bars in one layer of vertically placed steel bar mesh positioned on the inner side pass through a pair of first through holes on the inner side, and the vertical steel bars in the same layer of vertically placed steel bar mesh positioned on the inner side pass through a pair of second through holes on the inner side;
the horizontal steel bars in one layer of the vertically placed steel bar net positioned at the outer side pass through a pair of first through holes at the outer side, and the vertical steel bars in the same layer of the vertically placed steel bar net positioned at the outer side pass through a pair of second through holes at the outer side;
the side wall inner template is detachably fixed on the inner disc surface of the mounting disc positioned at the inner side through a self-tapping screw, and the side wall outer template is detachably fixed on the outer disc surface of the mounting disc positioned at the outer side through the self-tapping screw;
the horizontal steel bars and the vertical steel bars in each layer of vertically placed steel bar nets are connected together through a plurality of support modules to form connection between the steel bars, and at least the inner layer and the outer layer of vertically placed steel bar nets are connected together through the support modules to form connection between the nets;
the first hollow pipe and the two mounting plates are of split structures, the two mounting plates are respectively arranged at two ends of the first hollow pipe through the two radial spherical plain bearings, the two ends of the first hollow pipe are respectively inserted and fixed into inner rings of the two radial spherical plain bearings, and the two mounting plates are respectively sleeved on outer rings of the two radial spherical plain bearings.
2. The pouring system of the assembled formwork type miniature underground utility tunnel according to claim 1, wherein the roof reinforcement cage is a space three-dimensional cage structure formed by connecting at least two layers of overlapped horizontal placement reinforcement meshes, and each layer of horizontal placement reinforcement mesh is formed by cross connection of a plurality of horizontal transverse reinforcement bars and a plurality of horizontal longitudinal reinforcement bars;
the horizontal transverse steel bars and the horizontal longitudinal steel bars in each layer of horizontally placed steel bar nets are connected together through a plurality of support modules to form connection between the steel bars, and at least the upper layer and the lower layer of horizontally placed steel bar nets are connected together through the support modules to form connection between the nets.
3. The pouring system of the assembled formwork type miniature underground utility tunnel according to claim 1, wherein the bottom plate reinforcement cage is of a space three-dimensional cage structure formed by connecting at least two layers of overlapped horizontal placement reinforcement meshes, and each layer of horizontal placement reinforcement mesh is formed by connecting a plurality of horizontal transverse reinforcement bars and a plurality of horizontal longitudinal reinforcement bars in a cross manner;
the horizontal transverse steel bars and the horizontal longitudinal steel bars in each layer of horizontally placed steel bar nets are connected together through a plurality of support modules to form connection between the steel bars, and at least the upper layer and the lower layer of horizontally placed steel bar nets are connected together through the support modules to form connection between the nets.
4. The pouring system of the assembled formwork type miniature underground utility tunnel according to claim 1, wherein the formwork piece further comprises a second hollow pipe, the second hollow pipe is adhered to the first hollow pipe, the second hollow pipe is parallel to the first hollow pipe, two ends of the second hollow pipe are open, two ends of the second hollow pipe and two ends of the first hollow pipe are respectively inserted and fixed in inner rings of the two centripetal joint bearings, and the cross section of the second hollow pipe is located between a through hole channel of the pair of first through holes and a through hole channel of the pair of second through holes so as to avoid the second hollow pipe shielding the first through holes and the second through holes from causing difficult insertion of reinforcing steel bars.
5. The casting system for assembling a modular miniature utility tunnel of claim 1, wherein the support modules are of a hard plastic material.
6. The pouring system of an assembled modular miniature utility tunnel of claim 1, wherein the radial spherical plain bearing is a hard plastic material.
7. The pouring method of the assembled template type micro underground comprehensive pipe rack is characterized by comprising the following steps of:
1) Firstly, excavating a foundation pit, and then sequentially paving a concrete leveling cushion layer, a waterproof coiled material and a fine stone concrete protective layer on the inner bottom of the foundation pit from bottom to top; simultaneously preparing the pouring system of the assembled template type micro underground comprehensive pipe rack of claim 1;
2) After the fine stone concrete protective layer is maintained and the mould is removed, hanging the pouring system prepared in the step 1) on the fine stone concrete protective layer in the foundation pit by using a crane;
3) Then pouring concrete, integrally pouring and forming the bottom plate, the side wall and the top plate, vibrating, curing and removing the mould to obtain a segmented pipe gallery;
4) And similarly, pouring the next segmented pipe gallery in the foundation pit, and sealing and connecting the segmented pipe galleries in series to obtain the assembled template type micro underground comprehensive pipe gallery.
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| CN201810549501.3A CN108571011B (en) | 2018-05-31 | 2018-05-31 | Pouring system and pouring method for assembled template type micro underground comprehensive pipe rack |
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