CN212153450U

CN212153450U - Waterproof structure of underground comprehensive pipe gallery deformation joint

Info

Publication number: CN212153450U
Application number: CN201922454988.XU
Authority: CN
Inventors: 周子鹄; 杜映银
Original assignee: Guangdong Oriental Yuhong Waterproof Engineering Co ltd
Current assignee: Guangdong Oriental Yuhong Waterproof Engineering Co ltd
Priority date: 2019-12-28
Filing date: 2019-12-28
Publication date: 2020-12-15
Anticipated expiration: 2029-12-28

Abstract

The utility model discloses a waterproof structure of utility tunnel movement joint, including being located the movement joint between two walls bodies, bury formula waterstop in being provided with in the movement joint, fill grouting material in burying the inboard movement joint of formula waterstop, in bury and set gradually stagnant water enhancement layer, inner seal layer and outer sealing layer in the movement joint in the formula waterstop outside. The utility model discloses well bore and wear the formula waterstop of burying, fill the sealing rod, then bury the slip casting mouth underground with the mixed liquid of leaking stoppage precious and acrylic ester copolymerization emulsion, pour into the acrylate thick liquid, can fully fill the gap, improve the slip casting sealed effect; the inner sealing layer adopts a mixed liquid of the leak stopping agent and the acrylate copolymer emulsion, so that the cracking of the inner sealing layer can be effectively improved, and the sealing effect is improved; the outer sealing layer adopts sealing paste, the flexible material can better adapt to deformation joint deformation, and U-shaped steel plates are added, so that certain rigidity is increased, rigidity and flexibility are combined, and secondary water resistance can be effectively realized.

Description

Waterproof structure of underground comprehensive pipe gallery deformation joint

Technical Field

The utility model relates to a waterproof technical field especially relates to a waterproof structure of utility tunnel movement joint.

Background

The utility tunnel is the utility tunnel of underground city pipeline, has the important effect to satisfying resident daily life needs. The utility tunnel engineering has higher requirements on the waterproof grade. And the piping lane movement joint also is the main part that the seepage problem appears, and how to handle the seepage problem of piping lane movement joint department, is the key of guarantee underground pipe gallery engineering quality of use.

The conventional maintenance method is that an inclined hole is drilled to penetrate through a structure to the upstream surface of the water stop belt and oil-soluble polyurethane grouting material or cement-based grouting material is injected for water stop, and when the depth of the buried water stop belt is deep or the seam width is wide and the width of the buried water stop belt is wide, a very deep inclined hole needs to be drilled, so that common equipment cannot achieve the purpose, and certain limitation exists. Moreover, the cement grouting material or the polyurethane grouting material has large shrinkage rate, and the material is dry, hard and aged and loses the sealing effect in the process of alternating cycle of expansion with heat and contraction with cold; when the deformation joint generates large settlement or deformation, the sealing material is easy to crack to cause leakage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waterproof structure of utility tunnel movement joint to the not enough of above-mentioned prior art.

In order to solve the above problems, the utility model adopts the following technical proposal:

the utility model provides a waterproof structure of utility tunnel movement joint, is including being located the movement joint between two walls bodies, it buries the formula waterstop to be provided with in the movement joint, well bury the both wings of formula waterstop pour in the wall body of movement joint both sides, it has the slip casting material to pour in the inboard movement joint of formula waterstop in, in bury and set gradually stagnant water enhancement layer, inner seal layer and outer sealing layer in the movement joint in the formula waterstop outside.

Further, the grouting material is an acrylate grouting liquid.

Furthermore, the water stop reinforcing layer is a water stop strip.

Furthermore, the inner sealing layer is a mixed liquid of the leak stopping agent and the acrylate copolymer emulsion.

Further, the outer sealing layer is polysulfide sealant.

Further, the outer end face of the deformation joint is provided with a fastening structure.

Further, the fastening structure is including inlaying the U shaped steel board of setting in the movement joint, the tank bottom of U shaped steel board with the external seal layer butt, extend at the both ends of U shaped steel board outside bending type behind the movement joint becomes the fixed plate parallel with the both sides wall body, the fixed plate passes through expansion screw to be fixed in both sides wall body surface.

Furthermore, a water stop strip is arranged between the fixing plate and the wall body.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

the utility model discloses well bore and wear the formula waterstop of burying, fill the sealing rod, then bury the slip casting mouth underground with the mixed liquid of leaking stoppage treasure and acrylic ester copolymerization emulsion, pour into the acrylate thick liquid, can fully fill the gap, improve the sealed effect of slip casting, the acrylate slip casting liquid has better contractility, and the permeability is good, is difficult for the shrinkages, does not produce the pollution, can effectively improve the slip casting result; the inner sealing layer adopts a mixed liquid of the leak stopping agent and the acrylate copolymer emulsion, so that the cracking of the inner sealing layer can be effectively improved, and the sealing effect is improved; the outer sealing layer adopts sealing paste, the flexible material can better adapt to deformation joint deformation, and U-shaped steel plates are added, so that certain rigidity is increased, rigidity and flexibility are combined, and secondary water resistance can be effectively realized.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a wall body; 2. deformation joints; 3. a medium-buried water stop; 4. grouting a material; 5. a water stop reinforcing layer; 6. an inner sealing layer; 7. an outer sealing layer; 8. a U-shaped steel plate; 9. a fixing plate; 10. an expansion screw; 11. a foam bar; 12. a waterproof layer; 13. a waterproof reinforcing layer; 14. and a protective layer.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to 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, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, the utility model relates to a concrete implementation of the waterproof structure of the deformation joint of the underground comprehensive pipe gallery, including the deformation joint 2 that is located between two wall bodies 1, the middle part is provided with the buried water stop 3 in the deformation joint 2, the both wings of the buried water stop 3 are pour in the wall body 1 of deformation joint 2 both sides, the grouting material 4 is poured in the deformation joint 2 of the inboard of the buried water stop 3, the grouting material 4 adopts acrylate grouting liquid, the acrylate grouting liquid has better contractibility, the permeability is good, is difficult for the dry shrinkage, does not produce the pollution, can effectively improve the grouting success rate, when the grout meets water, can fill with aqueous polyurethane earlier, does not go out water and then uses the acrylate grouting liquid, effectively improves the sealing effect, the acrylic acid salt permeability is excellent, and its surface tension is also far less than the surface tension of water, can be fine at the surface spreading of concrete, the concrete is infiltrated into the concrete along the seepage channel under pressure, so that the seepage channel is effectively blocked, and the filling mechanism is met; a water stopping reinforcing layer 5, an inner sealing layer 6 and an outer sealing layer 7 are sequentially arranged in the deformation joint 2 on the outer side of the buried water stop belt 3 from inside to outside.

Furthermore, the water stop reinforcing layer 5 is a water stop strip.

Further, the inner sealing layer 6 is a mixed liquid of the plugging agent and acrylate copolymer emulsion. Adopt the mixed liquid of leaking stoppage treasure and acrylic ester copolymerization emulsion in this embodiment, can effectively improve the cracking of inner seal layer 6, also can prevent the weeping when the slip casting simultaneously. The leak stopping agent is a high-quality leak stopping material which is processed by special cement and additives through a special process.

Further, the outer sealing layer 7 is polysulfide sealant. The flexible material can be well adapted to the deformation of the deformation joint 2 and can be embedded and filled to be flush with the surface of the deformation joint 2.

Further, a fastening structure is arranged on the outer end face of the deformation joint 2. Fastening structure is including inlaying the U shaped steel board 8 of setting in movement joint 2, the tank bottom of U shaped steel board 8 with outer sealing layer 7 butt, extend at the both ends of U shaped steel board 8 outside bending type becomes fixed plate 9 parallel with both sides wall body 1 behind the movement joint 2, fixed plate 9 is fixed in both sides wall body 1 surface through expansion screw 10. The U-shaped steel plate 8 is arranged to increase certain rigidity, and is rigid and flexible, so that secondary water resistance can be achieved effectively.

Further, a water stop strip is arranged between the fixing plate 9 and the wall body 1.

Furthermore, a foam rod 11 for sealing the end opening is arranged at the end opening of the inner side of the deformation joint 2, and a waterproof layer 12, a waterproof reinforcing layer 13 and a protective layer 14 are laid at the joint of the two walls. The waterproof layer 12 and the waterproof reinforcing layer 13 are both 3 mm-thick high polymer modified asphalt self-adhesive waterproof coiled materials, and the protective layer 14 is a 30 mm-thick XPS polystyrene foam board.

The utility model is suitable for a comprehensive pipe gallery movement joint maintenance in the underground, construction method includes following step:

1. construction preparation: determining a maintenance position, setting up a movable scaffold, arranging lighting and ventilation equipment, and making construction safety preparation measures;

2. base surface treatment: properly chiseling the width of a bayonet of the deformation joint for subsequent construction, wherein the two sides of the deformation joint are uneven, and the notch of the deformation joint is chiseled and leveled;

3. gap cleaning: removing original fillers such as foam boards and sealing paste, and cleaning the inside of the seam;

4. leveling: leveling with 1:2.5 polymer cement mortar;

5. internal sealing: drilling through a middle-buried water stop belt, filling a water stop strip, and burying grouting nozzles by using a mixed liquid of a leak stopper and acrylate copolymer emulsion, wherein the burying interval of the grouting nozzles is 400-500 mm;

6. grouting treatment: injecting acrylate grouting liquid into the deformation joint (if water is more in the deformation joint, the water-based polyurethane can be adopted for injection), observing the flowing condition of the grouting liquid during grouting, finding out the bleeding part, and sealing by using a mixed liquid of a leak stoppage agent and the acrylate copolymer emulsion in time;

7. sealing a grouting nozzle: after grouting, after the grouting material is determined to be solidified, removing the exposed grouting pipe, and plugging a grouting hole by using a mixed liquid of a plugging agent and an acrylate copolymer emulsion;

8. external sealing: sealing the deformation joint by using polysulfide sealant, and filling until the surface of the deformation joint is flush;

9. installing a fastening structure: and U-shaped steel plates with the thickness of 1mm are arranged in the range of 30mm outside each of two sides of the deformation joint, the steel plates are fixed by expansion screws on two sides, and rubber water stop strips are padded under the screws.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. The utility model provides a waterproof structure of utility tunnel movement joint, is including movement joint (2) that are located between two wall bodies (1), bury formula waterstop (3) in being provided with in movement joint (2), the both wings of well burying formula waterstop (3) pour in movement joint (2) the wall body (1) of both sides, its characterized in that, it has grouting material (4) to pour in the inboard movement joint (2) of well burying formula waterstop (3), it has stagnant water enhancement layer (5), inner seal layer (6) and outer sealing layer (7) to have set gradually in movement joint (2) in the well burying formula waterstop (3) outside.

2. A waterproof construction for a deformation joint of an underground utility tunnel according to claim 1, characterized in that the grouting material (4) is an acrylate grouting liquid.

3. The underground utility tunnel deformation joint waterproof structure of claim 1, characterized in that the water-stop reinforcing layer (5) is a water stop strip.

4. The waterproof structure of the deformation joint of the underground comprehensive pipe gallery according to claim 1, wherein the inner sealing layer (6) is a mixed solution of a leak stopper and an acrylate copolymer emulsion.

5. A waterproof construction for a deformation joint of an underground utility tunnel according to claim 1, characterized in that the outer sealing layer (7) is polysulfide sealant.

6. A waterproof structure for a deformation joint of an underground comprehensive pipe gallery according to claim 1, characterized in that the outer end surface of the deformation joint (2) is provided with a fastening structure.

7. The waterproof structure of utility tunnel movement joint of claim 6, characterized in that, the fastening structure includes U shaped steel board (8) of set up in movement joint (2) in the embedding, the tank bottom of U shaped steel board (8) with outer sealing layer (7) butt, the both ends of U shaped steel board (8) extend behind movement joint (2) outside lateral buckling becomes fixed plate (9) parallel with both sides wall body (1), fixed plate (9) are fixed in both sides wall body (1) surface through expansion screw (10).

8. The waterproof structure of utility tunnel expansion joint of claim 7, characterized in that a water stop strip is arranged between the fixing plate (9) and the wall body (1).