CN110512645B - Elastic assembly type pipe gallery water stop structure and construction method thereof - Google Patents
Elastic assembly type pipe gallery water stop structure and construction method thereof Download PDFInfo
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- CN110512645B CN110512645B CN201910723838.6A CN201910723838A CN110512645B CN 110512645 B CN110512645 B CN 110512645B CN 201910723838 A CN201910723838 A CN 201910723838A CN 110512645 B CN110512645 B CN 110512645B
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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
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
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Abstract
The invention discloses an elastic assembly type pipe gallery water stop structure and a construction method thereof, and belongs to the field of constructional engineering. This elasticity assembled piping lane stagnant water structure sets up the preformed groove through connecting the laminating face at the piping lane, has prolonged the infiltration road footpath, improves water-proof effects. Through the elastic steel plate clamp, active pressure is provided, the water swelling waterproof adhesive tape pasted on the outer surface is tightly pressed in the reserved groove, the problem of water failure is effectively avoided because the space is not enough to appear in the pressure between the elastic water stopping component and the reserved groove caused by the deformation caused by the soil body settlement, and the elastic water stopping component is prevented from falling off due to the deformation of the soil body settlement joint. According to the construction method, the construction can be efficiently completed by assembling the superposed surfaces of the prefabricated pipe gallery joints and the elastic water stop members on site. In addition, the elastic steel plate clamp provides active pressure, the requirements on machining and construction precision are reduced, and the efficiency is improved.
Description
Technical Field
The invention belongs to the field of constructional engineering, and particularly relates to an elastic assembly type pipe gallery water stop structure and a construction method thereof.
Background
Since the 50 s of the 20 th century, China began to study the fabricated comprehensive pipe gallery. However, due to poor sealing performance at the interface, water leakage sometimes occurs, and the like, the construction of the comprehensive pipe gallery is almost in a stagnation state for a long time. In underground engineering construction, waterproofing is an important concern. How to improve prefabricated utility tunnel's waterproof sealing performance, ensure that the pipe gallery does not appear the seepage phenomenon in long-term use, guarantee the reliability of pipe gallery interface seal and at the durability of pipe gallery full life in-process waterproof sealing, guarantee that the construction mode is simple, convenient, swift, become the important difficult problem that prefabricated utility tunnel needs to be overcome at present research.
At present, the manufacturing form of the comprehensive pipe gallery mainly comprises a cast-in-place method and a prefabricated assembling method. The prefabricated assembly method adopts a joint type of flexible connection (double-rubber sealing ring sealing and double-component sealing paste). The device has the advantages of high reliability, strong durability, convenience in installation, high cost performance and the like. But different from the structures of other pipe gallery parts, the uneven settlement of soil is a main factor causing the water-proof failure of the superposed surface of the joint of the prefabricated comprehensive pipe gallery. At present, most of prefabricated comprehensive pipe gallery joint superposed surface waterproof failures are caused by structural dislocation caused by uneven settlement of soil bodies, so that superposed surface waterproof structures are dislocated and slipped. The maintenance difficulty is higher, wastes time and energy and the efficiency is low, so how to make the waterproof structure of the superposed surface of the joint of the prefabricated comprehensive pipe gallery prevent the soil body from non-uniform settlement, and the method is the key and difficult problem of the current pipe gallery waterproof research.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects of the prior art, the invention provides an elastic assembly type pipe gallery water stop structure which can resist uneven settlement of soil and adapt to deformation of an overlapped surface.
The invention also aims to provide a construction method of the elastic assembly type pipe gallery water stop structure.
The technical scheme is as follows: the invention relates to an elastic assembly type pipe gallery water stop structure which comprises a pipe gallery joint superposed surface and an elastic water stop member; the pipe gallery joint superposed surface comprises two opposite surfaces with a gap therebetween, the two surfaces are respectively provided with a reserved groove, and the reserved grooves on the two surfaces are oppositely arranged; the elastic water stopping component comprises an elastic steel plate clamp, a water swelling waterproof adhesive tape covered on the outer surface of the elastic steel plate clamp and a flexible rubber waterproof strip positioned on the inner side of the elastic steel plate clamp, wherein the elastic steel plate clamp is provided with a middle bending section which is positioned in the middle opening upwards and is symmetrical about a symmetrical plane, two first side plates which are respectively bent and extended outwards from the two side edges of the middle bending section, second side plates which are respectively bent and extended inwards from the outer edges of the two first side plates, the first side plate and the second side plate which are positioned on the same side form a clamping part together, and two ends of the flexible rubber waterproof strip are respectively arranged in the clamping parts on the two sides; the middle bending section is clamped in a gap between the two surfaces, the clamping parts on the two sides are respectively clamped in the reserved grooves of the two surfaces, and the reserved grooves extrude the clamping parts to clamp the flexible rubber waterproof strip tightly.
Wherein, elasticity stagnant water component still has three water swelling waterproof end cap, three water swelling waterproof end cap is located the clamping part outer end of both sides and the lower extreme of the section of bending at middle part respectively, and three water swelling waterproof end cap is the card of one-to-one respectively locates in the clearance between two faces and in two preformed grooves. Therefore, the water-swelling waterproof plug eliminates the water leakage problem caused by the gap caused by the processing construction precision error and the soil body deformation, and avoids the weak point of the water-stopping structure.
Tooth-shaped structures are respectively arranged at the opposite positions of the upper surface of the first side plate and the lower surface of the second side plate. Therefore, when the clamping part is clamped, the flexible rubber waterproof strip can be tightly occluded, and the slip of the flexible rubber waterproof strip is prevented when the soil body is unevenly settled, dislocated and deformed.
Further, the lower surface of the second side plate is also attached with an inner rubber waterproof strip. On the one hand separation steel sheet and water contact avoid corroding, on the other hand provides certain elastic deformation through the characteristic of rubber and avoids the elastic steel plate to press from both sides excessive deformation, is simultaneously by the dentate structure interlock with the waterproof strip of flexible rubber together, avoids the waterproof strip of flexible rubber directly to be caused the damage by the dentate structure interlock of both sides.
The end part of the second side plate is also provided with a buckle formed by bending upwards in an inclined mode, the upper surface of the reserved groove is provided with a clamping groove matched with the buckle, and the buckle is clamped in the clamping groove. Thereby preventing the water stop structure from slipping off the reserved notch when the soil body is unevenly settled and dislocated and deformed.
And a rubber belt is arranged on the inner side of the middle bending section. The middle bending section is prevented from being excessively extruded and deformed when the water stopping structure is installed, and the water stopping structure cannot be installed and aligned.
The middle of the flexible rubber waterproof strip is provided with an annular expansion part. Thereby further strengthen the ductility of flexible rubber waterproof strip through annular pars contractilis, extend in order effectively to avoid the fracture when the soil body differential settlement dislocation is out of shape.
The gap between the two faces is filled with a sealing paste. Further enhancing the seal.
Asphalt waterproof coiled material has been laid to the upper surface of piping lane joint laminating surface, asphalt waterproof coiled material covers the clearance top of two faces. Further enhancing the seal.
Corresponding to the elastic assembly type pipe gallery water stop structure, the technical scheme adopted by the construction method comprises the following steps:
(1) when the pipe gallery is prefabricated, pouring is controlled through the templates respectively at corresponding positions on opposite surfaces of a pipe gallery joint overlapping surface to form reserved grooves;
(2) determining the size of the elastic water stopping member according to the size of the pipe gallery, and processing the elastic water stopping member according to the size;
(3) when the pipe gallery is installed on site, the elastic water stopping member with proper length is cut out according to the width of each surface of the pipe gallery;
(4) after a section of pipe gallery is assembled, inserting one side of an elastic water stopping component into a reserved groove of the pipe gallery in advance to align a buckle on the side with a clamping groove of the reserved groove;
(5) after the other adjacent section of pipe gallery is aligned with the assembled pipe gallery in the longitudinal direction, the pipe gallery is closed towards the assembled pipe gallery, the other side of the elastic water stopping component is inserted into the reserved groove of the pipe gallery through longitudinal extrusion, and the buckle on the other side is aligned with the clamping groove of the reserved groove;
(6) the clearance of two faces of pipe gallery joint laminating face department is filled through the sealant, and surface treatment is carried out to surface laying pitch waterproofing membrane.
Has the advantages that: this elasticity assembled piping lane stagnant water structure sets up the preformed groove through connecting the laminating face at the piping lane, has prolonged the infiltration road footpath, improves water-proof effects. Through the elastic steel plate clamp provide active pressure, closely press the waterproof adhesive tape of meeting water inflation that the surface subsides to cover in the reservation tank, combine together with the buckle structure, effectively avoid because the elastic water stopping component that the deformation that the soil body subsides and bring leads to and the reservation tank between pressure not enough and the space appears, waterproof inefficacy's problem avoids elastic water stopping component to warp and drop because of soil body settlement joint. According to the construction method, the construction can be efficiently completed by assembling the prefabricated pipe gallery joint overlapping surface and the elastic water stop member on site, in addition, the elastic steel plate clamp provides active pressure, the requirements on processing and construction precision are reduced, and the efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of an elastically assembled pipe gallery water stop structure according to the present invention;
FIG. 2 is a schematic structural view of the elastic water stop member of the present invention;
FIG. 3 is a schematic structural view of the elastic steel plate clip of the present invention;
FIG. 4 is a schematic structural view of the overlapping surface of the piping lane joint of the present invention;
FIG. 5 is a partial enlarged structural schematic view of the water stopping structure of the elastic assembly type pipe gallery in FIG. 1;
FIG. 6 is a schematic view of the construction state of the present invention;
FIG. 7 is a view of the overall structure of the present invention after completion of construction.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms upper, lower, inner, outer, and the like, which represent the orientations of elements in the figures, are used for descriptive purposes and not necessarily for describing relative positions of the elements in the figures.
Specifically, as shown in fig. 1-7, an elastic assembly type pipe gallery water stop structure comprises a pipe gallery joint overlapping surface 1 and an elastic water stop member 2.
Referring to fig. 4, the pipe gallery joint overlapping surface 1 is a position where two adjacent pipe galleries are jointed, and includes two surfaces 11 which are opposite to each other and have a gap therebetween, two surfaces 11 are respectively provided with a reserved groove 12, the reserved grooves 12 on the two surfaces 11 are arranged opposite to each other, and the upper surface of the reserved groove 12 is provided with an upward-recessed clamping groove 12 a.
Referring to fig. 2, the elastic water stop member 2 includes an elastic steel plate clip 21 bent in a substantially "reversed-letter" shape, a water-swelling waterproof adhesive tape 22 covering the outer surface of the elastic steel plate clip 21, a flexible rubber waterproof strip 23 and an inner rubber waterproof strip 25 located inside the elastic steel plate clip 21, a rectangular water-swelling waterproof plug 24 and a rubber strip 26 respectively disposed at three ends of the "reversed-letter" shape.
Referring to fig. 3, the elastic steel plate clip 21 is formed by bending an elastic steel plate in a shape of "pin", and specifically, the elastic steel plate clip 21 includes a middle bending section 21a located at a middle opening upward and symmetrical about a symmetry plane, two first side plates 21b respectively extending from two side edges of the middle bending section 21a by bending outward, and second side plates 21c respectively extending from outer edges of the two first side plates 21b by bending inward, wherein the upper surface of the first side plate 21b and the lower surface of the second side plate 21c both have tooth-shaped structures 21d, and an end portion of the second side plate 21c further has a buckle 21e bent upward at 45 degrees.
The first side plate 21b and the second side plate 21c located on the same side form a clamping portion together, that is, the two side wings of the elastic steel plate clamp 21 form two clamping portions, and the two clamping portions and the middle bending section 21a have a certain opening angle before being assembled. Both ends of the flexible rubber waterproof strip 23 are respectively arranged in the clamping parts at both sides, and the two inner rubber waterproof strips 25 are respectively attached to the inner surface of the second side plate 21 c.
As shown in fig. 5, when the whole elastic assembly type pipe gallery water stop structure is assembled, the middle bending section 21a and the water-swelling waterproof plug 24 located at the lower portion of the middle bending section 21a and bonded to the outer surface of the water-swelling waterproof adhesive tape 22 are all clamped in the gap between the two faces 11. The gap compresses the middle bending section 21a, the water-swelling waterproof adhesive tape 22 on the outer surface and the water-swelling waterproof plug 24 at the lower end. The rubber belt 26 arranged on the inner side of the middle bending section 21a can avoid excessive extrusion deformation, so that the water stopping structure cannot be installed and aligned.
Simultaneously, be located the clamping part of both sides and be located two water swelling waterproof end cap 24 of two clamping part outer ends bonding in water swelling waterproof adhesive tape 22 surfaces block respectively and locate the preformed groove 12 of two faces 11, preformed groove 12 extrusion clamping part provides the water swelling waterproof adhesive tape 22 that outer tension compression is located the outside through springy steel plate clamp 21, increases elasticity stagnant water component 2 and preformed groove 12's close degree and frictional force, avoids taking place to slide. The clamping part bites the inner side flexible rubber waterproof strip 23 and the inner side rubber waterproof strip 25 tightly, and the slip of the flexible rubber waterproof strip 23 caused by the settlement and deformation of soil bodies is avoided. And the buckle 21e at the end of the second side plate 21c is clamped in the clamping groove 12a of the preformed groove 12, so that the water stop structure is prevented from slipping off from the groove opening when the soil body is unevenly settled and dislocated and deformed.
In actual assembly construction, the three waterproof plugs 24 which expand when encountering water are installed are waterproof weak points, because the positions are only tightly adhered by the aid of pre-pressure provided during early installation of the pipe gallery, and when the pipe gallery is dislocated due to settlement of soil, gaps are easily formed at the positions. Therefore, through the water swelling characteristic of the water swelling waterproof plug 24 with the cuboid and the larger volume, the water leakage problem caused by the gap caused by the processing construction precision error and the soil deformation can be effectively eliminated, and the weak part of the water stopping structure is effectively compensated.
Referring to fig. 2 again, the flexible rubber waterproof strip 23 has an annular expansion portion 23a in the middle and two ends in the shape of a strip. When the soil body is unevenly settled and dislocated and deformed, the ductility of the flexible rubber waterproof strip 23 is further enhanced through the annular telescopic part 23a, so that the flexible rubber waterproof strip is prevented from being broken, and the water stopping effect is guaranteed.
Referring again to fig. 1, the gap between the two faces 11 is filled with the sealing compound 3, and the asphalt waterproof sheet 4 is laid on the upper surface of the pipe gallery joint overlapping face 1, and the asphalt waterproof sheet 4 covers the gap between the two faces 11, so as to further enhance the sealing.
The embodiment also discloses a construction method of the elastic assembly type pipe gallery water stop structure, which specifically comprises the following steps:
(1) when a pipe gallery is prefabricated, pouring is controlled through templates at corresponding positions on the opposite surface 11 of the pipe gallery joint superposed surface 1 to form a reserved groove 12;
(2) determining the size of the elastic water stopping member 2 according to the size of the pipe gallery, and processing the elastic water stopping member 2 according to the size;
(3) when the pipe gallery is installed on site, the elastic water stopping member 2 with proper length is cut according to the width of each surface 11 of the pipe gallery;
(4) after a section of pipe gallery is assembled, inserting one side of the elastic water stop member 2 into the reserved groove 12 of the pipe gallery in advance to align the buckle 21e on the side with the clamping groove 12a of the reserved groove 12;
(5) after the other adjacent pipe gallery is aligned with the assembled pipe gallery in the longitudinal direction, as shown in fig. 6, the pipe gallery is drawn close to the assembled pipe gallery along the direction indicated by the arrow, the other side of the elastic water stop member 2 is inserted into the reserved groove 12 of the pipe gallery by longitudinal extrusion, and the buckle 21e on the other side is aligned with the clamping groove 12a of the reserved groove 12;
(6) the clearance of two faces 11 of 1 department of pipe gallery joint laminating face is filled through sealant 3, and surface treatment is carried out to surface laying pitch waterproofing membrane 4, namely the elasticity assembled pipe gallery stagnant water structure as shown in figure 7.
Above-mentioned stagnant water structure except being applied to the waterproof of utility tunnel joint coincide face, can also be applied to the waterproof of other prefabricated construction coincide faces, for example prefabricated box culvert, immersed tube etc.. Particularly, only need set up the reservation groove structure the same with above-mentioned piping lane joint laminating face on the target laminating face, with elasticity stagnant water component and reservation groove cooperation, finally realize water-proof effects.
Claims (10)
1. An elastic assembly type pipe gallery water stop structure is characterized by comprising a pipe gallery joint overlapping surface (1) and an elastic water stop member (2); the pipe gallery joint superposed surface (1) comprises two opposite surfaces (11) with a gap therebetween, the two surfaces (11) are respectively provided with a reserved groove (12), and the reserved grooves (12) on the two surfaces (11) are oppositely arranged; the elastic water stop member (2) comprises an elastic steel plate clamp (21), a water-swelling waterproof adhesive tape (22) covering the outer side surface of the elastic steel plate clamp (21), and a flexible rubber waterproof strip (23) positioned on the inner side of the elastic steel plate clamp (21), wherein the elastic steel plate clamp (21) is provided with a middle bending section (21a) which is positioned in the middle opening and is upward and symmetrical about a symmetrical plane, two first side plates (21b) which are respectively bent and extended outwards from the two side edges of the middle bending section (21a), and second side plates (21c) which are respectively bent and extended inwards from the outer edges of the two first side plates (21b), the first side plate (21b) and the second side plate (21c) which are positioned on the same side form a clamping part together, and two ends of the flexible rubber waterproof strip (23) are respectively arranged in the clamping parts on two sides; the middle bending section (21a) is clamped in a gap between the two faces (11), clamping parts on two sides are respectively clamped in reserved grooves (12) of the two faces (11), and the reserved grooves (12) extrude the clamping parts to clamp the flexible rubber waterproof strips (23).
2. The elastic assembled pipe gallery water stop structure according to claim 1, wherein the elastic water stop member (2) further has three water-swelling waterproof plugs (24), the three water-swelling waterproof plugs (24) are respectively located at the outer ends of the clamping portions of the two sides and at the lower end of the middle bending section (21a), and the three water-swelling waterproof plugs (24) are respectively clamped in the gap between the two faces (11) and in the two reserved grooves (12) in a one-to-one correspondence.
3. An elastic assembled piping lane waterstop construction according to claim 1, characterized in that the relative positions of the upper surface of the first side plate (21b) and the lower surface of the second side plate (21c) are respectively provided with a tooth-like structure (21 d).
4. A resilient assembly piping lane waterstop construction according to claim 3, wherein the lower surface of the second side plate (21c) is further coated with an inner rubber waterproof strip (25).
5. The elastic assembly type pipe gallery water stop structure according to claim 1, wherein a buckle (21e) formed by bending upwards in an inclined mode is further arranged at the end portion of the second side plate (21c), a clamping groove (12a) matched with the buckle (21e) is formed in the upper surface of the reserved groove (12), and the buckle (21e) is clamped in the clamping groove (12 a).
6. An elastic fabricated pipe gallery waterstop construction according to claim 1, characterized in that the inner side of the middle bend (21a) is provided with a rubber band (26).
7. An elastic fabricated pipe gallery waterstop construction according to claim 1, characterized in that the flexible rubber waterproof strip (23) has a ring-shaped expansion part (23a) in the middle.
8. A resilient fitting pipe gallery waterstop construction according to claim 1, characterized in that the gap between the two faces (11) is filled with sealing compound (3).
9. An elastic assembly type pipe gallery water stop structure according to claim 1, wherein an asphalt waterproof coiled material (4) is paved on the upper surface of the pipe gallery joint overlapping surface (1), and the asphalt waterproof coiled material (4) covers the gap between the two surfaces (11).
10. A construction method of the elastic assembly type pipe gallery water stop structure according to any one of claims 1 to 9, characterized by comprising the following steps:
(1) when the pipe gallery is prefabricated, pouring is controlled through the templates respectively at corresponding positions on opposite surfaces of a pipe gallery joint overlapping surface to form reserved grooves;
(2) determining the size of the elastic water stopping member according to the size of the pipe gallery, and processing the elastic water stopping member according to the size;
(3) when the pipe gallery is installed on site, the elastic water stopping member with proper length is cut out according to the width of each surface of the pipe gallery;
(4) after a section of pipe gallery is assembled, inserting one side of an elastic water stopping component into a reserved groove of the pipe gallery in advance to align a buckle on the side with a clamping groove of the reserved groove;
(5) after the other adjacent section of pipe gallery is aligned with the assembled pipe gallery in the longitudinal direction, the pipe gallery is closed towards the assembled pipe gallery, the other side of the elastic water stopping component is inserted into the reserved groove of the pipe gallery through longitudinal extrusion, and the buckle on the other side is aligned with the clamping groove of the reserved groove;
(6) the clearance of two faces of pipe gallery joint laminating face department is filled through the sealant, and surface treatment is carried out to surface laying pitch waterproofing membrane.
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| CN201910723838.6A CN110512645B (en) | 2019-08-06 | 2019-08-06 | Elastic assembly type pipe gallery water stop structure and construction method thereof |
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Families Citing this family (4)
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| CN110983982A (en) * | 2019-12-19 | 2020-04-10 | 中铁六局集团天津铁路建设有限公司 | Construction method of water seepage prevention system for settlement joint between frame bridge and retaining wall |
| CN112177178A (en) * | 2020-09-01 | 2021-01-05 | 中冶天工集团有限公司 | Waterproof structure supporting member |
| CN112726667A (en) * | 2020-12-31 | 2021-04-30 | 南京大地建设科技有限责任公司 | Semi-rigid assembly type comprehensive pipe gallery and construction method thereof |
| CN115419257A (en) * | 2022-10-25 | 2022-12-02 | 中建八局第二建设有限公司 | Laminated plate post-cast strip sealing construction method and sealing structure |
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