CN114753411B - Construction method of waterproof sinking structure of deformation joint of comprehensive pipe rack - Google Patents
Construction method of waterproof sinking structure of deformation joint of comprehensive pipe rack Download PDFInfo
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- CN114753411B CN114753411B CN202210428819.2A CN202210428819A CN114753411B CN 114753411 B CN114753411 B CN 114753411B CN 202210428819 A CN202210428819 A CN 202210428819A CN 114753411 B CN114753411 B CN 114753411B
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- 238000010276 construction Methods 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 100
- 230000002787 reinforcement Effects 0.000 claims abstract description 85
- 238000007493 shaping process Methods 0.000 claims abstract description 62
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 21
- 238000009434 installation Methods 0.000 claims description 17
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 230000008595 infiltration Effects 0.000 abstract description 6
- 238000001764 infiltration Methods 0.000 abstract description 6
- 238000005266 casting Methods 0.000 description 12
- 108091006146 Channels Proteins 0.000 description 9
- 230000003014 reinforcing effect Effects 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 6
- 238000004062 sedimentation Methods 0.000 description 6
- 102000010637 Aquaporins Human genes 0.000 description 5
- 238000009415 formwork Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 108010063290 Aquaporins Proteins 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
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- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention provides a construction method of a waterproof sinking structure of a deformation joint of a comprehensive pipe rack, which comprises the following steps: binding the reinforcement framework of the bottom plate of the comprehensive pipe rack, and binding the convex reinforcement framework at the convex waterproof structure; installing a bottom plate water stop to a preset position; mounting a shaping device at the raised reinforcement cage; pouring a pipe gallery bottom plate; binding side wall steel bars and roof steel bars of the comprehensive pipe rack, and installing a deformation joint end template, a pull rod, a side wall water stop and a roof water stop; pouring is carried out. The invention changes the flowing direction of water seepage through the raised waterproof structure so as to prevent the infiltration of underground water; bear shear stress through the pull rod, hinder inhomogeneous subsidence phenomenon, avoid producing the crack and form the water delivery passageway, reduce the deformation joint position department infiltration risk, improve deformation joint position department waterproof ability, improve deformation joint both sides rigidity, solved current utility tunnel inhomogeneous subsides in deformation joint department and lead to the problem of infiltration.
Description
Technical Field
The invention relates to the technical field of municipal engineering, in particular to a construction method of a waterproof sinking structure of a deformation joint of a comprehensive pipe rack.
Background
The utility tunnel is used as a linear structure, in order to avoid setting a deformation joint at intervals of 30m generally due to temperature transformation and ground subsidence, a structure of connecting two sides by using a steel edge water stop belt is generally adopted to play a role in water blocking, after the pipe tunnel structure is built, uneven subsidence exists at two sides of the deformation joint along with the time, the steel edge water stop belt at the position of the deformation joint is torn to form a water delivery channel, water seepage occurs, and therefore the rigidity and the waterproof capability of the connection point of the deformation joint are required to be enhanced.
Disclosure of Invention
In view of the above, the invention provides a construction method of a waterproof subsidence structure of a deformation joint of an utility tunnel, and aims to solve the problem that water seepage is caused by uneven subsidence of the existing utility tunnel at the deformation joint.
The invention provides a construction method of a waterproof sinking structure of a deformation joint of a utility tunnel, which comprises the following steps: binding a reinforcing steel bar framework of the bottom plate of the comprehensive pipe gallery, and binding a raised reinforcing steel bar framework of a raised waterproof structure below a preset installation position of a water stop of the bottom plate to form a reinforcing steel bar framework net of the bottom plate of the pipe gallery; installing a bottom plate water stop to a preset position; installing a shaping device for pouring the raised waterproof structure at the raised reinforcement cage and fixing the shaping device on the reinforcement cage net of the pipe gallery bottom plate; pouring the pipe gallery bottom plate to obtain the pipe gallery bottom plate with the raised waterproof structure below the bottom plate water stop belt; binding side wall steel bars of the comprehensive pipe rack and roof steel bars, and installing a side wall water stop belt at the end part of the deformation joint, a roof water stop belt, a pull rod and a template; pouring of the pipe gallery side wall and the pipe gallery top plate is carried out, so that the pipe gallery bottom plate, the pipe gallery side wall and the pipe gallery top plate form a comprehensive pipe gallery deformation joint waterproof sinking structure.
Further, according to the construction method of the waterproof sinking preventing structure for the deformation joint of the utility tunnel, the steel reinforcement framework of the bottom plate of the utility tunnel is divided into the upper layer steel reinforcement framework and the lower layer steel reinforcement framework at the preset installation position of the water stop belt, and the upper layer steel reinforcement framework and the lower layer steel reinforcement framework are arranged at intervals so as to reserve the installation position of the water stop belt.
Further, the construction method of the utility tunnel deformation joint waterproof sinking structure, wherein the utility tunnel bottom plate reinforcement cage is bound, the protruding reinforcement cage of the protruding waterproof structure is bound below the preset installation position of the water stop, and the pipe tunnel bottom plate reinforcement cage net is obtained, specifically: and a lower layer of reinforcement cage, an upper layer of reinforcement cage and a convex reinforcement cage are sequentially installed.
Further, the construction method of the utility tunnel deformation joint water-proof sinking structure comprises the following steps: the shaping template is used for shaping the raised waterproof structure; the support rod is arranged on the shaping template in a penetrating manner in a sliding manner along the thickness direction of the shaping template and is used for being arranged on a bottom plate reinforcing steel bar of the underground comprehensive pipe rack; the fastening piece is arranged on the supporting rod, is adjustably connected to the supporting rod along the length direction of the supporting rod and is used for limiting and fastening the shaping template.
Further, the construction method of the utility tunnel deformation joint water-proof sinking structure further comprises the following steps after pouring of the bottom plate of the pipe tunnel is completed: and removing the fastener and the shaping template, and cutting off the part of the support rod protruding out of the concrete surface.
Further, the construction method of the utility tunnel deformation joint water-proof sinking structure, the shaping template comprises: the template body is used for shaping the raised waterproof structure; the two side wall supporting plates are respectively arranged at two sides of the template body and are used for being flush with the side wall templates of the pipe gallery bottom plate; the two limiting plates are respectively arranged at the end parts of the two side wall supporting plates, which are far away from the template body, and are used for respectively propping against the pipe gallery foundation and the water stopping belt.
Further, according to the construction method of the waterproof sinking preventing structure for the deformation joint of the comprehensive pipe rack, the supporting rods and the fastening pieces are combined to form a waterproof bolt structure.
Further, in the construction method of the utility tunnel deformation joint water-proof sinking structure, the template body is of an involute tooth-shaped structure, an arc tooth-shaped structure or a zigzag structure.
Further, according to the construction method of the waterproof sinking structure of the utility tunnel deformation joint, the shaping device is of a strip-shaped structure, and when the shaping device is installed, the shaping device is arranged below the bottom plate water stop side by side along the length direction of the bottom plate water stop.
Further, according to the construction method of the waterproof sinking preventing structure for the deformation joint of the comprehensive pipe gallery, the plurality of pull rods are arranged along the outer side wall of the pipe gallery and the length direction of the top plate of the pipe gallery.
According to the construction method of the waterproof sinking structure of the deformation joint of the comprehensive pipe gallery, disclosed by the invention, the pipe gallery bottom plate which is pre-buried with the bottom plate water stop belt and is provided with the raised waterproof structure below the bottom plate water stop belt can be obtained through pouring and molding, the raised waterproof structure can change the flowing direction of seepage water so as to block the seepage of underground water, compared with the situation that the raised waterproof structure is not arranged, the deformation joint below the bottom plate water stop belt is provided with a linear seepage channel, the distance is short, the flowing speed is high, the linear seepage channel is changed into a nonlinear type through the arrangement of the raised waterproof structure, the underground water can be prevented from being permeated into the waterproof structure, meanwhile, when the deformation joint is displaced, the raised waterproof structure is more tightly attached to the vertical side wall, and the water conveying channel is further blocked, so that the difficulty of entering the underground water outside the pipe gallery is increased, and the waterproof performance of the position of the deformation joint is enhanced; in addition, through pre-buried pull rod on piping lane roof and piping lane side wall to realize being connected between this utility tunnel movement joint waterproof subsidence structure and peripheral follow-up pouring's piping lane section through the pull rod, so that when the movement joint both sides take place inhomogeneous subsidence with peripheral follow-up pouring's piping lane section that the utility tunnel movement joint waterproof subsidence structure promptly, the pull rod can bear most shear stress, prevents the inhomogeneous subsidence phenomenon of movement joint both sides, effectively avoids producing the crack and forms the water channel, reduces movement joint position department infiltration risk, improves movement joint position department waterproof capacity, improves movement joint both sides rigidity. The construction method of the utility tunnel deformation joint waterproof sinking structure solves the problem that water seepage is caused by uneven sedimentation of the existing utility tunnel at the deformation joint, reduces the water seepage risk of the utility tunnel at the deformation joint position, improves the waterproof capability of the utility tunnel deformation joint position, slows down the occurrence of uneven sedimentation of the two sides of the utility tunnel deformation joint, and improves the rigidity of the two sides of the utility tunnel deformation joint.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a flow chart of a construction method of a waterproof sinking structure of a deformation joint of a utility tunnel, which is provided by the embodiment of the invention;
fig. 2 is a schematic flow chart of a construction method of a waterproof sinking structure of a deformation joint of a utility tunnel according to an embodiment of the present invention;
FIG. 3 is a cross sectional view of a deformation joint water-sinking preventing structure of a utility tunnel provided by an embodiment of the invention at the deformation joint;
FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;
fig. 5 is a schematic view of a section bar arrangement at A-A in fig. 3;
fig. 6 is a schematic structural diagram of a shaping device according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of a waterproof sinking preventing structure for a deformation joint of a utility tunnel according to an embodiment of the present invention;
FIG. 8 is a side view of a waterproof sinking structure for a deformation joint of a utility tunnel, which is provided by the embodiment of the invention;
fig. 9 is a flow chart of another construction method of the waterproof sinking structure of the deformation joint of the utility tunnel according to the embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 to 2, a flowchart of a construction method of a waterproof sinking structure of a deformation joint of a utility tunnel according to an embodiment of the present invention is shown. As shown in the figure, the construction method of the utility tunnel deformation joint water-proof sinking structure comprises the following steps:
step S1, binding a reinforcing steel bar framework of the comprehensive pipe gallery bottom plate, and binding a protruding reinforcing steel bar framework of a protruding waterproof structure below a preset installation position of a bottom plate water stop, so as to form a reinforcing steel bar framework net of the pipe gallery bottom plate.
Specifically, as shown in fig. 3, the utility tunnel deformation joint water-proof sinking structure comprises a tunnel body 1 and a water stop belt 2; wherein the pipe rack body 1 comprises a pipe rack bottom plate 11, a pipe rack side wall 12 and a pipe rack top plate 13; wherein, piping lane side wall 12 is two at least, and wherein two are as the side wall, and its and piping lane bottom plate 11, piping lane roof 13 enclose to establish the piping lane structure that forms inside hollow horizontal direction and arrange, and other piping lane side wall 12 and side wall parallel arrangement are cut apart piping lane structure into a plurality of piping lane passageway between two side walls. The waterstop 2 sets up to whole circle structure along two lateral walls, piping lane bottom plate 11 and piping lane roof 13, and wherein the waterstop 2 sets up the one section at piping lane bottom plate 11 and can be bottom plate waterstop 21, and the waterstop that sets up in the lateral wall is side wall waterstop 22, the waterstop that piping lane roof 13 set up is roof waterstop 23. In order to improve the waterproof effect of the waterproof sinking structure of the deformation joint of the utility tunnel, as shown in fig. 3 and 4, a raised waterproof structure 3 may be disposed on the bottom plate 11 of the pipe tunnel below the bottom plate water stop 21 to block the infiltration of the utility water through the raised waterproof structure; the raised waterproof structure 3 is integrally formed with the piping lane bottom plate 11. In combination with fig. 5, when the reinforcement cage of the pipe rack bottom plate 11 is bound, the reinforcement cage of the comprehensive pipe rack bottom plate 4 is bound first, and then the protrusion reinforcement cage 5 at the protrusion waterproof structure 3 is bound below the preset installation position of the water stop belt 2, so that the protrusion reinforcement cage 5 and the reinforcement cage of the comprehensive pipe rack bottom plate 4 form a reinforcement cage net of the pipe rack bottom plate.
In this embodiment, in order to facilitate reservation of the installation position of the water stop 2, preferably, as shown in fig. 3, the utility tunnel bottom plate reinforcement cage 4 is divided into an upper reinforcement cage 41 and a lower reinforcement cage 42 at the preset installation position of the water stop 2, and an interval is set between the upper reinforcement cage 41 and the lower reinforcement cage 42 to reserve the installation position of the water stop 2. In this embodiment, as shown in fig. 2, a lower layer reinforcement cage 42, an upper layer reinforcement cage 41, and a convex reinforcement cage 5 may be installed in this order; in this embodiment, as shown in fig. 5, the lower reinforcement cage 42 includes a lower reinforcement mesh and a first mounting member 421, where the first mounting member 421 may be a fixed reinforcement, and serves as an outer contour of the lower reinforcement mesh to improve strength; the upper layer reinforcement cage 41 comprises an upper layer reinforcement mesh and a second mounting piece 411, wherein the second mounting piece 411 can be a fixed reinforcement, and is used as the outer contour of the upper layer reinforcement mesh to improve the strength; the protruding reinforcement cage 5 includes protruding reinforcement cage net piece and third installed part 51, and third installed part 51 can be the reinforcing bar, and it is as protruding reinforcement cage net piece's outline, can tie on first installed part 421, forms protruding reinforcement cage 5 to improve protruding waterproof construction 3's intensity, of course, third installed part 51 also can fix on first installed part 421 through shaping reinforcement net piece. Wherein, lower floor's reinforcing bar net piece, upper strata reinforcing bar net piece, protruding reinforcement cage net piece all are equipped with the reinforcing bar that sets up along piping lane bottom plate, of course still can be equipped with other reinforcing bars, do not limit it in this embodiment. In this embodiment, the lower layer reinforcing mesh may be bound first, then the first mounting member 421, then the second mounting member 411, the upper layer reinforcing mesh may be bound, and then the third mounting member 51 and the protruding reinforcing cage mesh may be mounted.
And S2, mounting the bottom plate water stop to a preset position. Specifically, the floor waterstop 21 is installed between the first mounting member 421 and the second mounting member 411, and may be bound to the piping lane floor reinforcing cage net obtained in step S1.
And S3, installing a shaping device for pouring the raised waterproof structure at the raised reinforcement cage and fixing the shaping device on the reinforcement cage net of the pipe gallery bottom plate.
In the present embodiment, as shown in fig. 6, the setting device 6 for casting the raised waterproof structure 3 includes: a shaping template 61, a supporting rod 62 and a fastening piece 63; wherein the shaping template 61 is used for shaping the raised waterproof structure 3. The support rods 62 are slidably inserted through the shaping template 61 along the thickness direction (vertical direction as shown in fig. 6) of the shaping template 61, and are used for being mounted on the bottom plate steel bars (not shown in the figure) of the underground utility tunnel; the fastener 63 is connected on the bracing piece 62 along the length direction position of bracing piece 62 in an adjustable way for carry out spacing and fastening to the shaping template 61, realize controlling spacing of horizontal direction that fig. 4 shows promptly to make shaping template 61's position and the position phase-match of piping lane pouring the template, pour the shaping template through shaping template 61 and piping lane and realize this pipe lane body 1's that is equipped with protruding waterproof construction 3 integrative the pouring shaping. Specifically, the shaping formwork 61 is adapted to the raised waterproof structure 3 so as to perform integral casting of the piping lane bottom plate 11 and the raised waterproof structure 3 in combination with the casting formwork of the piping lane bottom plate 11, forming the piping lane bottom plate 11 provided with the raised waterproof structure 3. The supporting rod 62 is arranged at the middle position of the shaping template 61 to improve the positioning stability of the shaping template 61; in order to further improve the stability of the shaping template 61, preferably, the number of the supporting rods 62 may be multiple, and the multiple supporting rods 62 are arranged side by side and at intervals along the length direction of the shaping template 61, so as to realize positioning of two ends, so that the shaping template 61 can be horizontally arranged below the water stop 2; in the present embodiment, two support rods 62 are illustrated, but in other embodiments, there may be other numbers, such as three or four. The fastening piece 63 is arranged on the supporting side of the shaping template 61, and the other side is the shaping side, so that the fastening piece 63 can be prevented from interfering. In the present embodiment, the support rod 62 and the fastening member 63 are combined to form a water stop bolt structure, that is, the fastening member 63 is a nut structure, the support rod 62 is a water screw structure, and of course, the support rod 62 may be a rod structure with threads on the outer wall such as a screw.
In step S3, the fixing device 6 may be fixedly installed by connecting the fixing template 61 with the framework of the piping lane bottom plate reinforcement obtained in step S1 through the supporting rod 62 and the fastening member 63, so that the piping lane bottom plate 11 provided with the raised waterproof structure 3 may be obtained in the later pouring, and of course, the fixing device 6 may be other devices and may be fixed on the framework of the piping lane bottom plate reinforcement in other manners, which is not limited in this embodiment. In this embodiment, the shaping device 6 is in a strip-shaped structure, and when the shaping device 6 is installed, the shaping device 6 is arranged below the bottom plate water stop 21 side by side along the length direction of the bottom plate water stop 21, so that a strip-shaped raised waterproof structure 3 is cast below the bottom plate water stop 21.
Of course, other forms of the piping lane bottom 11 may also be installed in this step, such as forms above the bottom plate water stop 21. Meanwhile, the gap between the shaping device 6 and the bottom plate water stop 21 can be filled with polyurethane foaming agent to prevent concrete from leaking.
And S4, pouring the pipe gallery bottom plate to obtain the pipe gallery bottom plate with the raised waterproof structure below the bottom plate water stop belt. Specifically, concrete is poured to obtain the piping lane bottom plate 11 in which the bottom plate water stop 21 is embedded and the raised waterproof structure 3 is provided below.
And S5, binding side wall steel bars and roof steel bars of the comprehensive pipe rack, and installing a side wall water stop belt, a roof water stop belt, a pull rod and a template at the end part of the deformation joint. Specifically, installing a reinforcement cage binding the pipe gallery side wall 12 and a reinforcement cage of the pipe gallery top plate 13, and installing a deformation joint end side wall water stop and a top plate water stop; then, a plurality of pull rods 7 are arranged on the outer side wall and the pipe gallery top plate 13 in the extension length direction, one ends of the pull rods 7 are inserted into the outer side wall and the pipe gallery top plate 13 which are formed by casting at this time, and the other ends of the pull rods are protruded to be inserted into the other pipe gallery section, so that the pipe gallery section which is formed by casting at this time is connected with the waterproof sinking structure of the deformation joint of the comprehensive pipe gallery which is formed by casting at this time through the pull rods 7, and when uneven sinking occurs on two sides of the deformation joint between the pipe gallery section which is formed by casting at this time and the waterproof sinking structure of the deformation joint of the comprehensive pipe gallery which is formed by casting at this time, the pull rods 7 bear most of shear stress, so that the uneven sinking phenomenon on two sides of the deformation joint is hindered, a water conveying channel is effectively avoided, and the sinking effect is achieved; finally, the formwork at the side wall 12 and the top plate 13 of the pipe gallery, especially the end formwork of the deformation joint, is installed.
And S6, pouring the pipe gallery side wall and the pipe gallery top plate to enable the pipe gallery bottom plate, the pipe gallery side wall and the pipe gallery top plate to form a comprehensive pipe gallery deformation joint waterproof sinking structure. Specifically, concrete is poured, so that a pipe gallery top plate 13 and a pipe gallery side wall 12 with the pull rod 7 embedded therein are obtained, and the pipe gallery bottom plate 11, the pipe gallery side wall 12 and the pipe gallery top plate 13 form a comprehensive pipe gallery deformation joint waterproof sinking structure, as shown in fig. 7 and 8.
In this embodiment, with continued reference to fig. 6, the sizing template 61 includes: a template body 611, two side wall support plates 612 and two limit plates 613; wherein the template body 611 is adapted to the outer contour of the raised waterproof structure 3; two side wall support plates 612 are respectively arranged at two sides of the template body 611 and are used for being flush with the side wall templates of the pipe gallery body; the two limiting plates 613 are respectively disposed at the ends of the two side wall supporting plates 612 away from the formwork body 611 (the upper end of the upper side wall supporting plate 612 and the lower end of the lower side wall supporting plate 612 as shown in fig. 4) for respectively pressing against the bottom plate and the water stop 2.
Specifically, the template body 611 may be an involute tooth profile structure, a circular arc tooth profile structure, a sawtooth-shaped structure or a spherical structure adapted to the outer contour of the raised waterproof structure 3, and is used for shaping the raised waterproof structure 3, so as to implement casting shaping of the raised waterproof structure 3. The side wall supporting plates 612 can be vertically arranged, and the two side wall supporting plates 612 are on the same plane, so that the side walls on the upper side and the lower side of the convex waterproof structure 3 after casting molding are flush. The limiting plates 613 can be horizontally arranged, the limiting plates 613 on the upper side can be propped against and contacted with the bottom arm of the water stop belt 2, and the limiting plates 613 on the lower side can be propped against and contacted with the bottom plate, so that the overall fixation and limiting of the shaping template 61 are realized.
In this embodiment, a filler may be disposed at a gap between the upper limit plate 613 and the bottom plate water stop 21, which may be a polyurethane foaming agent, to form a filling layer for preventing leakage of concrete.
According to the construction method of the waterproof sinking structure of the deformation joint of the comprehensive pipe gallery, the pipe gallery bottom plate 11 which is pre-buried with the bottom plate water stop belt 21 and is provided with the protruding waterproof structure 3 below the bottom plate can be obtained through casting molding, the protruding waterproof structure 3 can change the flowing direction of seepage water so as to obstruct the seepage of underground water, compared with the situation that the protruding waterproof structure 3 is not arranged, the deformation joint below the bottom plate water stop belt 21 is a linear type seepage channel, the distance is short, the flowing speed is high, the setting of the protruding waterproof structure 3 enables the linear type seepage channel to be changed into a nonlinear type, the underground water can be prevented from being permeated into the waterproof structure, meanwhile, when the deformation joint is displaced, the protruding waterproof structure 3 is more tightly attached to the vertical side wall, the difficulty of entering the underground water channel at the outer side of the pipe gallery is further blocked, and the waterproof performance of the position of the deformation joint is enhanced; in addition, through pre-buried pull rod 7 on piping lane roof 13 and piping lane side wall 12 to realize the utility tunnel movement joint waterproof subsidence structure through pull rod 7 and peripheral follow-up be connected between the piping lane section of pouring, so that when the movement joint both sides take place inhomogeneous subsidence with peripheral follow-up be poured the piping lane section of pouring promptly utility tunnel movement joint waterproof subsidence structure, pull rod 7 can bear most shear stress, obstructs the inhomogeneous subsidence phenomenon of movement joint both sides, effectively avoids forming the water channel, plays the effect of subsidence and improves waterproof effect. The construction method of the utility tunnel deformation joint waterproof sinking structure solves the problem that water seepage is caused by uneven sedimentation of the existing utility tunnel at the deformation joint, reduces the water seepage risk of the utility tunnel at the deformation joint position, improves the waterproof capability of the utility tunnel deformation joint position, slows down the occurrence of uneven sedimentation of the two sides of the utility tunnel deformation joint, and improves the rigidity of the two sides of the utility tunnel deformation joint.
Referring to fig. 9, another flow chart of a construction method of the waterproof sinking structure of the deformation joint of the utility tunnel according to the embodiment of the invention is shown. As shown in the figure, the construction method comprises the following steps:
step S1, binding a reinforcing steel bar framework of the comprehensive pipe gallery bottom plate, and binding a protruding reinforcing steel bar framework of a protruding waterproof structure below a preset installation position of a bottom plate water stop, so as to form a reinforcing steel bar framework net of the pipe gallery bottom plate.
And S2, mounting the bottom plate water stop to a preset position.
And S3, installing a shaping device for pouring the raised waterproof structure at the raised reinforcement cage and fixing the shaping device on the reinforcement cage net of the pipe gallery bottom plate.
And S4, pouring the pipe gallery bottom plate to obtain the pipe gallery bottom plate with the raised waterproof structure below the bottom plate water stop belt.
And S7, removing the fastener and the shaping template, and cutting off the part of the supporting rod protruding out of the concrete surface. Specifically, the concrete strength in the piping lane bottom plate 11 is brought to a certain strength, the mold is removed, and at the same time, the fastener 63 and the setting form 61 are removed, and then the portion of the piece support bar 62 protruding from the concrete face is cut out using an angle grinder.
And S5, binding side wall steel bars and roof steel bars of the comprehensive pipe rack, and installing a deformation joint end template and a pull rod.
And S6, pouring the pipe gallery side wall and the pipe gallery top plate to enable the pipe gallery bottom plate, the pipe gallery side wall and the pipe gallery top plate to form a comprehensive pipe gallery deformation joint waterproof sinking structure.
The step S7, the step S5, and the step S6 have no sequence, and the step S5 and the step S6 may be performed simultaneously or may be performed therebetween, which is not limited in this embodiment.
In summary, according to the construction method of the waterproof sinking structure of the deformation joint of the utility tunnel provided by the embodiment, the pipe tunnel bottom plate 11 pre-embedded with the bottom plate water stop 21 and provided with the convex waterproof structure 3 below can be obtained through casting molding, the convex waterproof structure 3 can change the flowing direction of seepage water so as to prevent the seepage of underground water, compared with the situation that the convex waterproof structure 3 is not arranged, the deformation joint below the bottom plate water stop 21 is a linear type seepage channel, the distance is short, the flow is fast, the linear type seepage channel is changed into a nonlinear type by the arrangement of the convex waterproof structure 3, the underground water can be prevented from seeping into the waterproof structure, meanwhile, when the deformation joint is displaced, the convex waterproof structure 3 is more tightly attached compared with the vertical side wall, the water conveying channel is further blocked, the difficulty of underground water outside the pipe tunnel entering the corridor is increased, and the waterproof performance of the position of the deformation joint is enhanced; in addition, through pre-buried pull rod 7 on piping lane roof 13 and piping lane side wall 12 to realize the utility tunnel movement joint waterproof subsidence structure through pull rod 7 and peripheral follow-up be connected between the piping lane section of pouring, so that when the movement joint both sides take place inhomogeneous subsidence with peripheral follow-up be poured the piping lane section of pouring promptly in utility tunnel movement joint waterproof subsidence structure, pull rod 7 can bear most shear stress, obstructs the inhomogeneous subsidence phenomenon of movement joint both sides, effectively avoids producing the crack and forms the water channel, reduces movement joint position department infiltration risk, improves movement joint position department waterproof capacity, improves movement joint both sides rigidity. The construction method of the utility tunnel deformation joint waterproof sinking structure solves the problem that water seepage is caused by uneven sedimentation of the existing utility tunnel at the deformation joint, reduces the water seepage risk of the utility tunnel at the deformation joint position, improves the waterproof capability of the utility tunnel deformation joint position, slows down the occurrence of uneven sedimentation of the two sides of the utility tunnel deformation joint, and improves the rigidity of the two sides of the utility tunnel deformation joint.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (5)
1. The construction method of the waterproof sinking structure of the utility tunnel deformation joint is characterized by comprising the following steps:
binding a reinforcing steel bar framework of the bottom plate of the comprehensive pipe gallery, and binding a raised reinforcing steel bar framework of a raised waterproof structure below a preset installation position of a water stop of the bottom plate to form a reinforcing steel bar framework net of the bottom plate of the pipe gallery; the utility tunnel deformation joint water-proof sinking structure comprises a tunnel body and a water stop belt; wherein, the pipe gallery body includes pipe gallery bottom plate, pipe gallery side wall and pipe gallery roof; the pipe gallery side walls are at least two, two of the pipe gallery side walls serve as outer side walls, a pipe gallery structure which is hollow in the inside and is arranged in the horizontal direction is formed by surrounding the pipe gallery side walls, the pipe gallery bottom plate and the pipe gallery top plate, and other pipe gallery side walls and the outer side walls are arranged in parallel between the two outer side walls to divide the pipe gallery structure into a plurality of pipe gallery channels; the water stop belt is arranged into a whole circle structure along the two outer side walls, the pipe gallery bottom plate and the pipe gallery top plate, wherein one section of the water stop belt arranged on the pipe gallery bottom plate is a bottom plate water stop belt, the water stop belt arranged in the outer side walls is a side wall water stop belt, and the water stop belt arranged on the pipe gallery top plate is a top plate water stop belt; a raised waterproof structure is arranged on the pipe gallery bottom plate below the bottom plate water stop belt so as to prevent underground water from penetrating through the raised waterproof structure; when the reinforcement framework of the pipe gallery bottom plate is bound, firstly binding the reinforcement framework of the comprehensive pipe gallery bottom plate, and then binding the raised reinforcement framework of the raised waterproof structure below the preset installation position of the water stop belt, so that the raised reinforcement framework and the reinforcement framework of the comprehensive pipe gallery bottom plate form a reinforcement framework net of the pipe gallery bottom plate;
the bottom plate water stop is installed between the first installation piece and the second installation piece and is bound on the steel reinforcement framework net of the pipe gallery bottom plate;
installing a shaping device for pouring the raised waterproof structure at the raised reinforcement cage and fixing the shaping device on the reinforcement cage net of the pipe gallery bottom plate;
pouring the pipe gallery bottom plate to obtain the pipe gallery bottom plate with the raised waterproof structure below the bottom plate water stop belt;
binding side wall steel bars of the comprehensive pipe rack and roof steel bars, and installing a side wall water stop belt at the end part of the deformation joint, a roof water stop belt, a pull rod and a template;
pouring the side wall and the top plate of the pipe gallery so that the bottom plate of the pipe gallery, the side wall and the top plate of the pipe gallery form a comprehensive pipe gallery deformation joint water-proof sinking structure; one end of the pull rod is inserted into the side wall of the pipe gallery and the top plate of the pipe gallery, and the other end of the pull rod protrudes out to be inserted into the other pipe gallery section;
the comprehensive pipe rack bottom plate reinforcement cage is divided into an upper reinforcement cage and a lower reinforcement cage at a preset installation position of the water stop, and the upper reinforcement cage and the lower reinforcement cage are arranged at intervals so as to reserve the installation position of the water stop;
carry out utility tunnel bottom plate framework of steel reinforcement to the protruding framework of steel reinforcement of protruding waterproof construction department of below ligature of fixed position is predetermine to the waterstop obtains pipe corridor bottom plate framework of steel reinforcement net, specifically does:
sequentially installing a lower layer of reinforcement cage, an upper layer of reinforcement cage and a raised reinforcement cage;
the lower layer reinforcement cage comprises a lower layer reinforcement mesh and a first mounting piece, wherein the first mounting piece is a fixed reinforcement and is used as the outer contour of the lower layer reinforcement mesh; the upper layer reinforcement cage comprises an upper layer reinforcement mesh and a second mounting piece, wherein the second mounting piece is a fixed reinforcement and is used as the outer contour of the upper layer reinforcement mesh; the convex reinforcement cage comprises a convex reinforcement cage net sheet and a third mounting piece, wherein the third mounting piece is a reinforcement, and is taken as the outer contour of the convex reinforcement cage net sheet and bound on the first mounting piece to form the convex reinforcement cage; wherein, the lower layer reinforcing steel bar net sheet, the upper layer reinforcing steel bar net sheet and the raised reinforcing steel bar framework net sheet are all provided with reinforcing steel bars arranged along the bottom plate of the pipe gallery; binding a lower layer of reinforcing steel bar meshes, binding a first mounting piece, mounting a second mounting piece, binding an upper layer of reinforcing steel bar meshes, and mounting a third mounting piece and a raised reinforcing steel bar framework mesh;
the shaping device comprises:
the shaping template is used for shaping the raised waterproof structure;
the support rod is arranged on the shaping template in a penetrating manner in a sliding manner along the thickness direction of the shaping template and is used for being arranged on a bottom plate reinforcing steel bar of the underground comprehensive pipe rack;
the fastening piece is arranged on the supporting rod, is adjustably connected to the supporting rod along the length direction of the supporting rod and is used for limiting and fastening the shaping template; the shaping template is connected with the steel bar skeleton net of the bottom plate of the pipe gallery through the supporting rods and the fasteners, so that the fixed installation of the shaping device is realized;
after the pouring of the pipe gallery bottom plate is completed, the method further comprises the following steps:
removing the fastener and the shaping template, and cutting off the part of the support rod protruding out of the concrete surface;
the shaping template comprises:
the template body is used for shaping the raised waterproof structure;
the two side wall supporting plates are respectively arranged at two sides of the template body and are used for being flush with the side wall templates of the pipe gallery bottom plate;
the two limiting plates are respectively arranged at the end parts of the two side wall supporting plates, which are far away from the template body, and are used for respectively propping against the bottom template of the pipe gallery bottom plate and the water stopping belt.
2. The construction method of the utility tunnel deformation joint waterproof sinking structure according to claim 1, which is characterized in that,
the support rod and the fastener are combined to form a water stop bolt structure.
3. The construction method of the utility tunnel deformation joint waterproof sinking structure according to claim 1, which is characterized in that,
the template body is of an involute tooth-shaped structure, a circular arc tooth-shaped structure or a sawtooth-shaped structure.
4. The construction method of the utility tunnel deformation joint waterproof sinking structure according to claim 1, which is characterized in that,
the shaping device is of a strip-shaped structure, and when the shaping device is installed, the shaping device is arranged below the bottom plate water stop side by side along the length direction of the bottom plate water stop.
5. The construction method of the utility tunnel deformation joint waterproof sinking structure according to claim 1, which is characterized in that,
the tie rods are a plurality of, and are arranged along the length direction of the outer side wall of the pipe gallery side walls and the pipe gallery top plate.
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| CN202210428819.2A CN114753411B (en) | 2022-04-22 | 2022-04-22 | Construction method of waterproof sinking structure of deformation joint of comprehensive pipe rack |
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| CN112459128A (en) * | 2020-11-30 | 2021-03-09 | 中国一冶集团有限公司 | Waterproof construction structure and method for deformation joint of underground comprehensive pipe gallery bottom plate |
| WO2022036806A1 (en) * | 2020-08-21 | 2022-02-24 | 广东美景环境科技有限公司 | Seepage and leakage prevention structure for post-cast strip of basement floor |
| CN217480259U (en) * | 2022-04-22 | 2022-09-23 | 中国二十冶集团有限公司 | Underground utility tunnel movement joint waterproof construction and setting device |
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| CN204266165U (en) * | 2014-11-10 | 2015-04-15 | 南京市第二基础工程公司 | The vertical water-stopping structure of a kind of concrete work deformation joint |
| WO2018196101A1 (en) * | 2017-04-28 | 2018-11-01 | 东北大学 | Integrated formwork for utility tunnel, and method of using same |
| CN111254976A (en) * | 2020-01-19 | 2020-06-09 | 上海市政建设有限公司 | Construction method for deformation joint of pipe gallery |
| WO2022036806A1 (en) * | 2020-08-21 | 2022-02-24 | 广东美景环境科技有限公司 | Seepage and leakage prevention structure for post-cast strip of basement floor |
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