Novel prefabricated assembly type rapid splicing sealing waterproof box culvert

Abstract

The utility model relates to the technical field of assembly type box culvert waterproof structures, and discloses a novel prefabricated assembly type rapid splicing sealing waterproof box culvert which comprises a prefabricated box culvert which comprises a standard prefabricated box culvert arranged in the middle and a head end type prefabricated box culvert and a tail end type prefabricated box culvert which are arranged at the two ends. A rectangular bell mouth and a rectangular rabbet which are matched with each other are formed in the two ends of the standard prefabricated box culvert correspondingly, a rectangular bell mouth is formed in the end, close to the standard prefabricated box culvert, of the head-end type prefabricated box culvert, and the end, away from the standard prefabricated box culvert, of the head-end type prefabricated box culvert is a vertical face. The end, close to the standard prefabricated box culvert, of the tail end type prefabricated box culvert is provided with a rectangular rabbet, and the end, away from the standard prefabricated box culvert, of the tail end type prefabricated box culvert is a vertical face. The novel prefabricated assembly type rapid splicing sealing waterproof box culvert has the advantages of being easy to splice, convenient to construct, good in sealing waterproof effect, high in adaptability to the external environment and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of assembled box culvert waterproof structure, and particularly relates to a novel prefabricated assembled rapid splicing sealing waterproof box culvert. BACKGROUND

[0002] The prefabricated assembled box culvert structure has been widely applied in the construction fields of urban pipe gallery, underground drainage, underground passage and water conveying culvert due to its advantages of factory production and rapid assembly. However, the further popularization and application of the assembled box culvert splicing structure are restricted by the leakage problem of the water stop structure. In the prior art, the splicing waterproof of the assembled box culvert mainly depends on the site pouring of concrete, the application of prefabricated rubber pads or the use of other sealing materials, and these methods have certain limitations.

[0003] Firstly, the traditional construction technology of site pouring of concrete has high labor intensity, high requirements for the construction environment and is easily affected by weather conditions. In addition, the maintenance period of site pouring of concrete is long, which prolongs the construction period of the whole project, reduces the construction efficiency, and meanwhile, the shrinkage and temperature change of the concrete can cause cracks, affecting the waterproof effect. Although the single rubber gasket is simple to construct, it is prone to aging and deformation in the long-term use process, is difficult to adapt to the temperature difference change and small displacement of the structure, is prone to cause the sealing performance to decrease, and further affects the waterproof effect and safety of the whole box culvert structure, so it is necessary to improve the existing waterproof box culvert. SUMMARY

[0004] The utility model provides a novel prefabricated assembled rapid splicing sealing waterproof box culvert, solves the problem raised in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A novel prefabricated assembled rapid splicing sealing waterproof box culvert, comprising a prefabricated box culvert, the prefabricated box culvert comprises a standard prefabricated box culvert arranged in the middle and a first-end prefabricated box culvert and a tail-end prefabricated box culvert arranged at both ends, the both ends of the standard prefabricated box culvert are respectively provided with a rectangular socket and a rectangular spigot that cooperate with each other, the first-end prefabricated box culvert is provided with a rectangular socket at one end close to the standard prefabricated box culvert, and the other end of the first-end prefabricated box culvert away from the standard prefabricated box culvert is a vertical surface, and the tail-end prefabricated box culvert is provided with a rectangular spigot at one end close to the standard prefabricated box culvert, and the other end of the tail-end prefabricated box culvert away from the standard prefabricated box culvert is a vertical surface.

[0007] As a preferred technical scheme of the utility model, the length of the rectangular socket is 30 centimeters, the thickness of the rectangular socket is 15 centimeters, the length of the rectangular spigot is 32 centimeters, and the thickness of the rectangular spigot is 15 centimeters.

[0008] As a preferred technical scheme of the utility model, the middle part of the rectangular rebate and the rectangular socket is provided with a rectangular groove, the top of the rectangular groove is provided with a reserved hole, the inside of the rectangular groove is provided with liquefied asphalt, and the width and depth of the rectangular groove are both 7.5 cm.

[0009] As a preferred technical scheme of the utility model, the outer facade and the inner surface of the rectangular rebate are provided with a waterproof sealing ring, the thickness of the waterproof sealing ring is 2 cm, and the width of the waterproof sealing ring is 13 cm.

[0010] As a preferred technical scheme of the utility model, the outer end of the rectangular socket is provided with a slope surface, and the horizontal length of the slope surface is 6 cm.

[0011] As a preferred technical scheme of the utility model, the inside of the joint is provided with polysulfide sealant.

[0012] As a preferred technical scheme of the utility model, the width of the joint is 2 cm, and the joint is divided into a water-facing joint and a backwater-facing joint.

[0013] As a preferred technical scheme of the utility model, the top of the prefabricated box culvert is provided with a lifting ring, and the bottom of the prefabricated box culvert is provided with a plain concrete cushion layer.

[0014] As a preferred technical scheme of the utility model, the diameter of the lifting ring is greater than or equal to 25 mm.

[0015] As a preferred technical scheme of the utility model, the two sides of the plain concrete cushion layer are wider than the prefabricated box culvert by 10 cm, and the length of each section of the prefabricated box culvert is greater than or equal to 5 m.

[0016] The utility model has the following advantages:

[0017] 1. Simple splicing, convenient construction, and good sealing and waterproof effect.

[0018] 2. The rectangular groove 5 arranged at the middle part of the rectangular rebate 3 and the rectangular groove 5 arranged at the middle part of the rectangular socket 4 are one-to-one corresponding after the assembly type box culvert splicing is completed, liquefied asphalt 13 is poured through the pouring hole, and the air in the rectangular groove 5 is discharged through the second reserved hole 802 and the third reserved hole 803, so that the liquefied asphalt 13 poured in the rectangular groove 5 is more compact, and the sealing and waterproof effect is better.

[0019] 3. The outer and inner surfaces of the rectangular rebate 3 are pasted with waterproof rubber sealing rings, which have certain elasticity and can be used as reserved buffer space, so as to avoid failure of the closed part due to temperature, vibration and other factors, and at the same time ensure that the adjacent prefabricated box culvert 1 is not damaged by knocking and other human damage when splicing.

[0020] 4. The outer end of the rectangular socket 4 is provided with a 45° slope surface 12 with a horizontal length of 6 cm, which has a certain guiding effect and can guide the end of the rectangular socket 4 of the prefabricated box culvert 1 to smoothly enter the end of the rectangular rebate 3 of the adjacent prefabricated box culvert 1.

[0021] 5. A 2 cm thick polysulfide sealing glue 7 is arranged at the splicing joint 2, which can have a double sealing waterproof effect.

[0022] 6. The prefabricated box culvert 1 produced in batches in the factory is easier to ensure the physical quality and appearance quality of the prefabricated box culvert 1, and the appearance geometric size is easier to control. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0024] Figure 1 It is a structural diagram of a new prefabricated assembly type rapid splicing sealing waterproof box culvert.

[0025] Figure 2 It is a structural diagram of a rectangular rebate in a new prefabricated assembly type rapid splicing sealing waterproof box culvert.

[0026] Figure 3 It is a structural diagram of a rectangular socket in a new prefabricated assembly type rapid splicing sealing waterproof box culvert.

[0027] Figure 4 It is a structural diagram of a splicing part in a new prefabricated assembly type rapid splicing sealing waterproof box culvert.

[0028] Figure 5 It is a structural diagram of the inside of a new prefabricated assembly type rapid splicing sealing waterproof box culvert.

[0029] In the figure: 1, prefabricated box culvert; 101, standard prefabricated box culvert; 102, head-end prefabricated box culvert; 103, tail-end prefabricated box culvert; 2, splicing joint; 201, water-facing splicing joint; 202, backwater-facing splicing joint; 3, rectangular rebate; 4, rectangular socket; 5, rectangular groove; 6, waterproof sealing ring; 601, outer waterproof sealing ring; 602, inner waterproof sealing ring; 7, polysulfide sealant; 701, outer waterproof polysulfide sealant; 702, inner waterproof polysulfide sealant; 8, reserved hole; 801, first reserved hole; 802, second reserved hole; 803, third reserved hole; 9, cushion layer; 10, backfill clay; 11, lifting ring; 12, slope surface; 13, liquefied asphalt. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] In one embodiment, referring to Figures 1-5 A novel prefabricated assembly type rapid splicing sealing waterproof box culvert, comprising a prefabricated box culvert 1, the prefabricated box culvert 1 comprises a standard prefabricated box culvert 1 arranged in the middle and head-end prefabricated box culverts 102 and tail-end prefabricated box culverts 103 arranged at both ends, the both ends of the standard prefabricated box culvert 1 are respectively provided with a rectangular socket 4 and a rectangular rebate 3 matched with each other, the head-end prefabricated box culvert 102 is provided with a rectangular socket 4 close to one end of the standard prefabricated box culvert 1, and the end of the head-end prefabricated box culvert 102 away from the standard prefabricated box culvert 1 is a vertical surface, the tail-end prefabricated box culvert 103 is provided with a rectangular rebate 3 close to one end of the standard prefabricated box culvert 1, and the end of the tail-end prefabricated box culvert 103 away from the standard prefabricated box culvert 1 is a vertical surface.

[0032] In one case of the embodiment, the middle part of the rectangular rebate 3 and the rectangular socket 4 is provided with a rectangular groove 5, the top of the rectangular groove 5 is provided with a reserved hole 8, and the inside of the rectangular groove 5 is provided with liquefied asphalt 13. The length of the rectangular socket 4 is 30 cm, and the thickness is 15 cm; the horizontal length of the slope surface 12 arranged at the outer end of the rectangular socket 4 is 6 cm, the width and depth of the rectangular groove 5 are both 7.5 cm, and the rectangular groove 5 is arranged along the center of the outer surface of the rectangular socket 4; the rectangular groove 5 is filled with liquefied asphalt 13. The length of the rectangular rebate 3 is 32 cm, and the thickness is 15 cm. The aperture of the reserved hole 8 is not less than 7.5 cm, and the reserved hole 8 is uniformly arranged along the trend of the rectangular groove 5 on the top surface of the rectangular rebate 3; the reserved hole 8 penetrates the wall thickness of the rectangular rebate 3; the reserved hole 8 is divided into a first reserved hole 801, a second reserved hole 802, and a third reserved hole 803; the first reserved hole 801 serves as a filling hole, the second reserved hole 802 and the third reserved hole 803 serve as exhaust holes; the aperture of the reserved hole 8 should be consistent with the width of the rectangular groove 5; the first reserved hole 801 and the third reserved hole 803 are on the same vertical axis as the vertical section of the rectangular groove 5; the second reserved hole 802 is arranged along the center of the horizontal section of the rectangular groove 5.

[0033] In one case of the embodiment, the outer facade and the inner surface of the rectangular rebate 3 are provided with a waterproof sealing ring 6. The waterproof sealing ring 6 is divided into an outer waterproof sealing ring 601 and an inner waterproof sealing ring 602; the thickness of the waterproof sealing ring 6 is 2 cm, the width is 13 cm, and the waterproof sealing ring 6 has a certain elasticity. A 45° slope surface 12 is arranged at the outer end of the rectangular socket 4.

[0034] In one case of the embodiment, a splicing joint 2 is arranged between two adjacent standard prefabricated box culverts 1, between the standard prefabricated box culvert 1 and the head-end type prefabricated box culvert 102, and between the standard prefabricated box culvert 1 and the tail-end type prefabricated box culvert 103; the width of the splicing joint 2 is 2 cm, and the splicing joint 2 is divided into a water-facing splicing joint 201 and a backwater splicing joint 202. The inside of the splicing joint 2 is provided with a polysulfide sealant 7, and the polysulfide sealant 7 includes an outer waterproof polysulfide sealant 701 and an inner waterproof polysulfide sealant 702.

[0035] In one case of the embodiment, a lifting ring 11 is arranged at the top of the prefabricated box culvert 1, and a plain concrete cushion layer 9 is arranged at the bottom of the prefabricated box culvert 1. The strength grade of the plain concrete cushion layer 9 should not be lower than C20, and the upper surface should be flat and dry; the width of the two sides of the plain concrete cushion layer 9 should be more than 10 cm wider than the width of the prefabricated box culvert 1; the length of each section of the prefabricated box culvert 1 should not be less than 5 meters; a round steel lifting ring 11 with a diameter of not less than 25 mm is arranged at the top of each section of the prefabricated box culvert 1.

[0036] The embodiment includes the following steps in the implementation process:

[0037] 1. Immediately after the foundation pit is excavated to the design elevation and accurately leveled, the plain concrete cushion 9 is constructed, and the upper surface of the plain concrete cushion 9 is kept flat. After the maintenance of the plain concrete cushion 9 expires and the upper surface is fully dried, a layer of asphalt coiled material is laid;

[0038] 2. The prefabricated box culvert 1 formed by factory precasting is transported to the construction site by a special transport vehicle;

[0039] 3. The waterproof sealing ring 6 is pasted on the outer and inner vertical surfaces of the rectangular rebate 3 through adhesive glue;

[0040] 4. The prefabricated box culvert 1 is hoisted into place by a crane against the water flow direction, that is, the tail-end type prefabricated box culvert 103, the standard type prefabricated box culvert 101 and the head-end type prefabricated box culvert 102 are hoisted in turn;

[0041] 5. According to the hoisting sequence, liquefied asphalt 13 is poured into the rectangular groove 5 through the first reserved hole 801, and the air in the rectangular groove 5 is discharged through the second reserved hole 802 and the third reserved hole 803. When the liquefied asphalt 13 is poured to the top of the rectangular groove 5, the third reserved hole 803 and the second reserved hole 802 are filled with liquefied asphalt 13 in turn and fully solidified;

[0042] 6. The outer waterproof polysulfide sealant 701 is filled at the backwater surface splicing joint 202 of the rectangular box culvert to a thickness of 2 cm, and the inner waterproof polysulfide sealant 702 is filled at the water-facing surface splicing joint 201 of the rectangular box culvert to a thickness of 2 cm;

[0043] 7. The lifting ring 11 in the top trench of the prefabricated box culvert 1 is cut horizontally, and then micro-expansion shrinkage fine aggregate concrete of the same strength grade as the prefabricated box culvert 1 is used for pouring and filling to be flat, and fully maintained;

[0044] 8. A layer of asphalt coiled material is naturally laid within 50 cm on both sides of the splicing joint 2, and the asphalt coiled material is fully bonded to the upper surface and side surface of the prefabricated box culvert 1;

[0045] 9. The backfilling plain clay 10 is symmetrically, layer by layer and balancedly laid on both sides of the prefabricated box culvert 1, and it is ensured that the compaction degree of the backfilling plain clay 10 meets the requirements.

[0046] The utility model is suitable for a novel prefabricated assembly type rapid splicing sealing waterproof box culvert, and has the characteristics of simple splicing, convenient construction, good sealing and waterproof effect, strong adaptability to external environment and the like.

[0047] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A novel prefabricated, assembled, rapid-assembly, sealed, and waterproof box culvert, characterized in that, The system includes precast box culverts, comprising a standard precast box culvert located in the middle and two precast box culverts located at the ends: a first-end precast box culvert and a second-end precast box culvert. The standard precast box culvert has a rectangular socket and a rectangular tongue-and-groove joint at each end. The first-end precast box culvert has a rectangular socket at the end closest to the standard precast box culvert, and the end furthest from the standard precast box culvert is a vertical surface. The second-end precast box culvert has a rectangular tongue-and-groove joint at the end closest to the standard precast box culvert, and the end furthest from the standard precast box culvert is a vertical surface.

2. The novel prefabricated, assembled, rapid-connection, sealed, and waterproof box culvert according to claim 1, characterized in that, The rectangular socket is 30 cm long and 15 cm thick, and the rectangular tongue and groove is 32 cm long and 15 cm thick.

3. A novel prefabricated, assembled, rapid-assembly, sealed, and waterproof box culvert according to claim 1, characterized in that, A rectangular groove is provided in the middle of the rectangular tongue and groove and the rectangular socket. A reserved hole is provided at the top of the rectangular groove. Liquefied asphalt is provided inside the rectangular groove. The width and depth of the rectangular groove are both 7.5 cm.

4. A novel prefabricated, assembled, rapid-assembly, sealed, and waterproof box culvert according to claim 1, characterized in that, The rectangular tongue and groove joint is provided with a waterproof sealing ring on its outer surface and inner surface. The waterproof sealing ring is 2 cm thick and 13 cm wide.

5. A novel prefabricated, assembled, rapid-connection, sealed, and waterproof box culvert according to claim 1, characterized in that, The outer end of the rectangular socket is provided with a slope, the horizontal length of which is 6 cm.

6. A novel prefabricated, assembled, rapid-connection, sealed, and waterproof box culvert according to claim 1, characterized in that, There are splicing joints between two adjacent standard precast box culverts, between a standard precast box culvert and a first-end type precast box culvert, and between a standard precast box culvert and a last-end type precast box culvert. The splicing joints are filled with polysulfide sealant.

7. A novel prefabricated, assembled, rapid-assembly, sealed, and waterproof box culvert according to claim 6, characterized in that, The joint width is 2 cm, and the joint is divided into a water-facing joint and a backwater joint.

8. A novel prefabricated, assembled, rapid-connection, sealed, and waterproof box culvert according to claim 1, characterized in that, The precast box culvert is equipped with lifting rings at the top and plain concrete pads at the bottom.

9. A novel prefabricated, assembled, rapid-connection, sealed, and waterproof box culvert according to claim 8, characterized in that, The diameter of the lifting ring is greater than or equal to 25 mm.

10. A novel prefabricated, assembled, rapid-connection, sealed, and waterproof box culvert according to claim 8, characterized in that, The plain concrete foundation layer is 10 cm wider on both sides than the precast box culvert, and each section of the precast box culvert is 5 meters or longer.

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