CN112196054A

CN112196054A - Prefabricated gap type drainage ditch, prefabricated mold and construction process of prefabricated mold

Info

Publication number: CN112196054A
Application number: CN202011015938.2A
Authority: CN
Inventors: 马健; 李月明; 刘闯
Original assignee: Beijing Huifeng Construction Engineering Co ltd
Current assignee: Beijing Huifeng Construction Engineering Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-01-08
Anticipated expiration: 2040-09-24
Also published as: CN112196054B

Abstract

The prefabricated gap type drainage ditch comprises a concrete base body, one side of the concrete base body is provided with an opening communicated with a drainage channel, a supporting framework is embedded in the concrete base body and comprises a heat exchange assembly, and the heat exchange assembly comprises a plurality of first heat exchange pieces and a plurality of second heat exchange pieces; the prefabricated die comprises an outer die and an inner die, wherein an opening plate is arranged on the bottom wall of the outer die, and the outer die is provided with a temperature control source conveying assembly which is used for being connected with the heat exchange assembly and conveying a heat exchange medium to the heat exchange assembly; the construction process comprises the steps of drainage ditch prefabrication, ditch excavation, drainage ditch installation and foundation soil backfilling. This application has the advantage that improves escape canal construction quality.

Description

Prefabricated gap type drainage ditch, prefabricated mold and construction process of prefabricated mold

Technical Field

The application relates to the technical field of drainage ditches, in particular to a prefabricated gap type drainage ditch, a prefabricated mold and a construction process of the prefabricated mold.

Background

At present, concrete roads can generate subgrade settlement after being used for a period of time, because surface water can enter the subgrade through seams, cracks and the like of the concrete and permeate into a structural layer to soften the subgrade. The gap type drainage communication is commonly used for municipal roads provided with middle separation belts, and the top reconstruction section is provided with a longitudinal opening for collecting rainwater on the inner side of the super high section. In order to shorten the construction period, the gap type drainage ditch adopts a prefabrication production process, and then the prefabricated drainage ditch is transported to the site for construction.

The related art sees the chinese utility model patent of granted bulletin number CN208167922U, and it discloses a slot formula escape canal mould, includes and is the open-ended cuboid shape box by synthetic upper end of polylith template enclosure, through the detachable connection of screw between each template, is equipped with expansion device in the box.

In view of the above-described related art, the inventors found that the following problems exist: after the concrete is poured into the mould, the difference between the hardening speed of the concrete close to the surface of the mould and the hardening speed of the concrete at the core part is large, so that the quality of the manufactured drainage ditch is difficult to control.

Disclosure of Invention

In order to improve the problem that prefabricated escape canal surface and core rate of hardening difference are big, the application provides a prefabricated gap formula escape canal, prefabricated mould and construction process thereof, and it has the advantage that improves precast in-process concrete hardening homogeneity.

In a first aspect, the present application provides a prefabricated gap type drainage ditch, which adopts the following technical scheme:

the utility model provides a prefabricated slot formula escape canal, is including being the cuboid structure and having the concrete base member of penetrability drainage channel, the opening with the drainage channel intercommunication is seted up to the one side of concrete base member, has buried the braced frame underground in the concrete base member, the braced frame includes heat exchange assembly, and heat exchange assembly includes a plurality of first heat transfer pieces that are close to concrete base member surface setting and a plurality of second heat transfer pieces that are close to the drainage channel inner wall setting.

Through adopting above-mentioned technical scheme, at the in-process of making the escape canal, concrete placement back, through the first heat transfer piece that is close to concrete matrix surface and the second heat transfer piece that is close to drainage channel, can adjust the difference in temperature of concrete surface and inside, homogeneity when improving the concrete matrix and hardening improves the quality in escape canal.

Optionally, the first heat exchange piece and the second heat exchange piece both comprise heat exchange tubes, one end of each heat exchange tube is provided with an inflow hole, the other end of each heat exchange tube is provided with an outflow hole, and the inflow hole and the outflow hole are positioned on two sides of the opening; the inflow hole on the first heat exchange piece and the inflow hole on the second heat exchange piece are located on the same side of the opening and expose out of the concrete base body, and the outflow hole on the first heat exchange piece and the outflow hole on the second heat exchange piece are located on the other side of the opening and expose out of the concrete base body.

Through adopting above-mentioned technical scheme, water gets into from the influent stream hole of first heat transfer spare and the influent stream hole of second heat transfer spare, flows from respective play discharge port after carrying out the heat exchange with the concrete, can be convenient control the hardening temperature of concrete base member through adjusting the temperature of water for the hardening temperature condition when the concrete hardening accords with laboratory allotment proportion as far as possible improves the uniformity among the concrete hardening process, improves the quality in escape canal.

Optionally, the first heat exchange piece and the second heat exchange piece both comprise heat exchange tubes, one end of each heat exchange tube is provided with an inflow hole, the other end of each heat exchange tube is provided with an outflow hole, and the inflow hole and the outflow hole are positioned on two sides of the opening; the inflow hole in the first heat exchange piece and the outflow hole in the second heat exchange piece are located on the same side of the opening and exposed out of the concrete substrate, and the outflow hole in the first heat exchange piece is connected with the inflow hole in the second heat exchange piece and located in the concrete substrate.

Through adopting above-mentioned technical scheme, the influent stream hole of first heat transfer spare and the influent stream hole of second heat transfer spare are located the both sides of concrete substrate to make the heat transfer condition more even, improve the production condition uniformity of escape canal preparation, the quality stability improves.

Optionally, the support frame further comprises a plurality of transverse ribs and a reinforcement cage formed by fixing the longitudinal ribs, and each heat exchange tube is fixedly connected with the plurality of transverse ribs in a surrounding mode.

Through adopting above-mentioned technical scheme, the joint strength of concrete is improved as the partly of steel reinforcement cage on the one hand to the heat exchange tube, and on the other hand adjusts and controls the inside temperature of concrete as heat source exchange carrier, and in addition, the heat exchange tube is through horizontal muscle with the horizontal transmission of heat to can carry out temperature regulation to the concrete between two adjacent heat exchange tubes, increased the heat exchange area.

In a second aspect, the present application provides a prefabricated mold for a prefabricated gap type drainage ditch, which adopts the following technical scheme:

the utility model provides a prefabricated mould of prefabricated slot formula escape canal, is including dismantling the external mold and the centre form of connection, and the external mold forms the die cavity that is used for making the concrete base member with the centre form, and the external mold diapire is equipped with and is used for forming open-ended opening board, the external mold is installed and is used for being connected with heat exchange assembly and to heat exchange assembly carry heat transfer medium's accuse temperature source conveyor assembly.

By adopting the technical scheme, the die is simple in structure, the hardening temperature of the poured concrete can be controlled through the temperature control source conveying assembly, the quality stability control during batch production is facilitated, and the quality qualified rate of the drainage ditch is improved.

Optionally, the temperature control source conveying assembly comprises an inlet pipe and an outlet pipe, connectors penetrating through the bottom wall of the outer mold are connected to the inlet pipe and the outlet pipe, and the connectors are connected with the first heat exchange piece and the second heat exchange piece.

Through adopting above-mentioned technical scheme, accuse temperature source conveying assembly is located the external mold diapire, has reduced the part of mould, improves operating efficiency when the equipment mould.

Optionally, the connecting port is inserted into the first heat exchange element and the second heat exchange element.

Through adopting above-mentioned technical scheme, during the equipment mould, supporting framework can be pegged graft with the connector respectively through first heat exchange spare and second heat exchange spare, and the installation is swift to can play the effect of location and prevent the displacement to supporting framework. In addition, when the pouring is finished and the form is removed, the supporting framework is positioned in the pre-branch drainage ditch, so that the supporting framework can be conveniently separated from the bottom wall of the outer mold, and the form is convenient to remove.

Optionally, the centre form is one side open-ended elasticity pipe, is connected with centre form design subassembly in the centre form, centre form design subassembly includes inside gasbag and the bag that adjusts the temperature of cladding outside the gasbag, and the one end fixedly connected with of gasbag is used for filling the air cock of gassing, and the one end of the bag that adjusts the temperature is connected with the connector that is used for filling water and drainage.

Through adopting above-mentioned technical scheme, the profile external diameter of centre form, convenient to detach centre form can be adjusted to the gasbag. The temperature adjusting bag can adjust the temperature of the inner mold, improve the consistency of the hardening temperature of the concrete core part and the surface, and is beneficial to the quality stability control.

In a third aspect, the application provides a construction process of a prefabricated gap type drainage ditch, which adopts the following technical scheme:

a construction process for a prefabricated gap type drainage ditch comprises the following steps:

prefabricating a drainage ditch: prefabricating a support framework, assembling a mold, adjusting temperature, inflating, pouring concrete, removing the mold and maintaining to obtain a prefabricated drainage ditch;

excavating a groove: digging a groove according to the design requirements of a drawing;

and (3) installing a drainage ditch: laying the prefabricated drainage ditches into the grooves, and sealing the joints of two adjacent prefabricated drainage ditches;

backfilling the foundation soil: and backfilling the foundation soil with the excavated grooves into the grooves on two sides of the drainage ditch.

Through adopting above-mentioned technical scheme, prefabricated escape canal can be fast at site operation, shortens construction cycle, and construction quality is high.

Drawings

FIG. 1 is a schematic diagram of an overall structure of a mold according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a bottom plate of the outer mold;

FIG. 3 is a sectional view showing a connection structure of a connection pipe and a base plate in the direction A-A of FIG. 2;

FIG. 4 is a schematic view of a steel reinforcement cage and an outer mold structure;

FIG. 5 is a sectional view showing a structure for coupling the heat exchange module and the base plate;

FIG. 6 is a schematic view of the prefabricated drainage ditch according to the embodiment of the present application;

FIG. 7 is a prefabricated escape canal construction flow chart of the embodiment of the application.

Description of reference numerals: 1. an outer mold; 11. a base plate; 111. an opening plate; 12. a side plate; 121. a positioning bar; 13. a front end plate; 131. a socket mold ring; 14. a rear end plate; 141. a plug die hole; 142. a retainer ring; 2. a support framework; 21. transverse ribs; 22. longitudinal ribs; 23. a heat exchange assembly; 231. a first heat exchange tube; 232. a second heat exchange tube; 233. a gasket; 3. an inner mold; 4. an inner mold shaping assembly; 41. an air bag; 411. an air tap; 42. a temperature adjusting bag; 421. a connector; 5. a temperature control source conveying assembly; 51. an inlet pipe; 52. a discharge pipe; 521. a connecting port; 6. prefabricating a drainage ditch; 61. a drainage cavity; 611. a socket; 62. and (4) opening.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses prefabricated mould of prefabricated gap formula escape canal. Referring to fig. 1, the manufacturing mold comprises an external mold 1 with a hollow interior and an opening at one side and an internal mold 3 installed in the external mold 1, a supporting framework 2 is installed in a mold cavity between the external mold 1 and the internal mold 3, an internal mold shaping assembly 4 is installed in an inner cavity of the internal mold 3, and a temperature control source conveying assembly 5 is installed at the bottom of the external mold 1. When preparation escape canal, with concrete placement to the die cavity that external mold 1 and centre form 3 formed, centre form design subassembly 4 can adjust the profile external diameter size of centre form 3, and accuse temperature source conveyor assembly 5 can adjust the inside temperature of concrete, improves the concrete and solidifies the homogeneity, and support chassis 2 improves the bulk strength in escape canal after the concrete sets the sclerosis.

Referring to fig. 2 and 3, the outer mold 1 includes a bottom plate 11, two side plates 12, a front end plate 13 and a rear end plate 14, the two side plates 12 are fixed to two opposite sides of the bottom plate 11 in parallel by bolts, the front end plate 13 is fixed to one end of the side plate 12 by bolts, the rear end plate 14 is fixed to the other end of the side plate 12 by bolts, and the front end plate 13 is parallel to the rear end plate 14, so that the outer mold 1 is in a rectangular parallelepiped structure. The front end plate 13 and the rear end plate 14 may be fixed to the end surface of the bottom plate 11 by bolts as necessary.

A circular through hole is formed in the middle of the front end plate 13, an annular socket mold ring 131 is integrally fixed or welded and fixed to the side wall of the through hole, and the outline outer diameter of the socket mold ring 131 gradually increases from the inside of the mold cavity to the outside of the outer mold 1 along the axis direction of the through hole. So that after the concrete is solidified, a truncated cone-shaped socket can be formed at the position.

The middle part of the rear end plate 14 is provided with a circular through hole, and the diameter of the through hole is gradually increased from the outer side of the outer die 1 to the inner cavity so as to form a plug at the position after the concrete is solidified. The small end side wall of the through hole is integrally formed with a retainer ring 142 extending in the circumferential direction. The end of the inner mold 3 abuts against the inner wall of the retainer ring 142, and the retainer ring 142 can prevent the concrete from flowing out of the outer mold 1. The through holes in the front end plate 13 and the rear end plate 14 are coaxially arranged.

The side plates 12 are rectangular plates, and the side plates 12, the front end plate 13 and the rear end plate 14 can be made of honeycomb plates, so that the heat insulation performance is good. The inner wall of the side plate 12 close to the bottom plate 11 is integrally provided with a positioning strip 121, and one side of the positioning strip 121 close to the bottom plate 11 is welded with a rubber sealing layer. The positioning strip 121 on the one hand improves the rapidity with which the side plate 12 is mounted in position so that the threaded holes in the side plate 12 are aligned with the threaded holes in the base plate 11; on the other hand, the positioning strips 121 are pressed on the edge of the bottom plate 11, and the rubber sealing layer can prevent concrete from penetrating into the gap at the joint of the side plate 12 and the bottom plate 11. Furthermore, the positioning strips 121 enable the prefabricated drainage ditch to form chamfers at the edges and corners of the prefabricated drainage ditch, and the possibility of damage of the edges and corners during mold stripping is reduced.

Referring to fig. 2 and 3, an opening plate 111 is fixed to one side of the bottom plate 11 adjacent to the cavity along the axis of the through hole of the front end plate 13, and the opening plate 111 may have a trapezoidal cross section for forming an opening of the gutter. The thickness of the bottom plate 11 at one side of the opening plate 111 is smaller than that at the other side so that the drain to be fabricated forms a waterproof stage.

The temperature control source conveying assembly 5 comprises an inlet pipe 51 and an outlet pipe 52 which are arranged in the bottom plate 11 in a penetrating way, the number of the inlet pipe 51 and the number of the outlet pipe 52 are two, and one inlet pipe and one outlet pipe are a group and are positioned on one side of the opening plate 111; connectors 521 are fixed on the flow inlet pipe and the flow outlet pipe along the length direction, the connectors 521 pass through the bottom plate 11 and are exposed, and the connectors 521 can be counterbores in a circular truncated cone shape. A control valve is installed at both ends of the inflow pipe 51 and the outflow pipe 52. In other embodiments, the inlet pipe 51 is closed at one end and is provided with a control valve at the other end, and the outlet pipe 52 is closed at one end and is provided with a control valve at the other end.

Referring to fig. 4 and 5, the supporting framework 2 includes a plurality of parallel transverse ribs 21 and longitudinal ribs 22 welded and fixed perpendicular to the transverse ribs 21, the longitudinal ribs 22 are composed of a rectangular outer frame and a circular inner frame with openings, the outer frame and the inner frame can be made by bending the reinforcing bars, and the openings on the inner frame are used for the opening plates 111 to pass through.

Install a plurality of heat transfer assemblies 23 on horizontal muscle 21, heat transfer assembly 23 includes the fixed first heat exchange tube 231 and the second heat exchange tube 232 that set up of horizontal muscle 21 of perpendicular to, and the profile of first heat exchange tube 231 is the open rectangle in one side, and the profile of second heat exchange tube 232 is one side open-ended circular, and the opening on the second heat exchange tube 232 is unanimous with the opening position on indulging the muscle 22.

Referring to fig. 4 and 5, the first heat exchange pipe 231 has an inlet at one end and an outlet at the other end, and the second heat exchange pipe 232 has an inlet at one end and an outlet at the other end. Here, the outlet of the first heat exchange tube 231 is in communication with the inlet of the second heat exchange tube 232 via a pipe, the inlet of the first heat exchange tube 231 and the outlet of the second heat exchange tube 232 are on the same side of the opening plate 111, the inlet of the first heat exchange tube 231 is inserted into the connection port 521 of the inlet tube 51, and the outlet of the second heat exchange tube 232 is inserted into the connection port 521 of the outlet tube 52.

Water can enter along the inflow pipe 51 and is shunted to each first heat exchange pipe 231 through the connection port 521, and the water flows out to the outflow pipe 52 after passing through the second heat exchange pipe 232, so that a circulation is formed, the temperature inside the poured concrete is adjusted by controlling the temperature of the water, and the solidification uniformity of the concrete is improved. Here, the water may be exchanged for another fluid that can exchange heat.

When the installation supporting framework 2, because the inflow end of the first heat exchange tube 231 and the outflow end of the second heat exchange tube 232 are inserted into the connecting port 521 on the bottom plate 11, the positioning can be rapidly carried out, the supporting framework 2 can be prevented from displacing in the pouring process, and the quality consistency of the drainage ditch is improved.

In order to prevent the concrete poured in the mold cavity from entering the connection port 521, elastic gaskets 233 are fixed at the inflow end of the first heat exchange pipe 231 and the outflow end of the second heat exchange pipe 232, and the gaskets 233 may be rubber gaskets which are fused on the heat exchange pipes. In other embodiments, the connection port 521 may also protrude from the bottom plate 11 by a distance, such as 3-5cm, and the connection port 521 is inserted into the first heat exchange pipe 231 and the second heat exchange pipe 232.

In other embodiments, the inflow ports of two adjacent first heat exchange tubes 231 are alternately disposed at both sides of the opening plate 111, and the outflow ports of two adjacent second heat exchange tubes 232 corresponding thereto are alternately disposed at both sides of the opening plate 111. This further improves the uniformity of the heat exchange of water in the concrete.

In other embodiments, the first heat exchange tube 231 is not communicated with the second heat exchange tube 232, the inflow end of the first heat exchange tube 231 is inserted into the connection port 521, and the outflow end of the first heat exchange tube 231 is also inserted into the connection port 521 on the other side of the opening plate 111. The inlet end of the second heat exchange tube 232 is inserted into the connection port 521, and the outlet end of the second heat exchange tube is also inserted into the connection port 521 at the other side of the opening plate 111.

In other embodiments, the positions of the inlet pipe 51 and the outlet pipe 52 may be interchanged.

Referring to fig. 4 and 5, the inner mold 3 is a circular tubular structure, the inner mold 3 has certain elasticity and can deform, and the side wall of the inner mold 3 is provided with a notch along the direction of a generating line, so that the inner mold 3 can adjust the outer diameter of the profile under the action of the inner mold shaping assembly 4. The inner mold 3 is made of PVC, and in other embodiments, the inner mold 3 may be a rubber inner mold or a stainless steel inner mold with a thickness of 0.3-0.8 mm.

The inner mold shaping assembly 4 is integrally cylindrical, the inner mold shaping assembly 4 comprises an inner air bag 41 and a temperature adjusting bag 42 coated outside the air bag 41, one end of the air bag 41 is fixedly connected with an air nozzle 411, and the air nozzle 411 is used for inflating and deflating the air bag 41 so as to change the outer contour diameter of the whole inner mold shaping assembly 4; one end of the temperature adjusting bag 42 is connected with a connector 421, and the connector 421 is used for filling water and discharging water into the temperature adjusting bag 42 so as to adjust the temperature of the concrete close to the inner mold 3.

Referring to fig. 6, after concrete is poured and hardened, the formwork is removed to form the prefabricated drain 6. The inside of prefabricated escape canal 6 is equipped with the drainage chamber 61 that is formed by centre form 3, and the one end of drainage chamber 61 is equipped with socket 611, and the other end of drainage chamber 61 is connected with the plug to two adjacent prefabricated escape canals 6 can peg graft smoothly during the installation. One side of the prefabricated drain 6 is provided with an opening 62 communicated with the drain chamber 61 for collecting surface water.

The production method of the prefabricated mold of the prefabricated gap type drainage ditch comprises the following steps:

assembling an external mold: the side plates 12, the front end plate 13, the rear end plate 14 and the bottom plate 11 are fixedly connected together by bolts to form the outer mold 1.

Prefabricating a supporting framework 2: the reinforcing steel bar is cut into required size, one part forms a transverse bar 21, the other part is bent into a longitudinal bar 22, and the longitudinal bar 22 is sleeved on the transverse bar 21 and welded and fixed. And shearing the aluminum alloy pipe into a required size which is 5-10cm larger than the steel bar for manufacturing the longitudinal bar 22, bending the aluminum alloy pipe to manufacture a heat exchange component 23, sleeving a rubber sealing gasket at the end part of the heat exchange component 23, and fusing. And welding and fixing the heat exchange assembly 23 on the transverse rib 21.

Assembling a mold: the supporting framework 2 is placed in the outer die 1 and is positioned and fixed, the inner die 3 is inserted from the through hole of the front end plate 13, and then the uninflated inner die shaping assembly 4 is placed.

Regulating and controlling the temperature: and (3) according to the solidification hardening curve of the proportioned concrete measured in a laboratory at different temperatures, and combining the environment temperature and the form removal time, selecting and determining the water supply temperature. The temperature-adjusting water is introduced into the heat exchange assembly 23 through the inlet pipe 51, the temperature-adjusting water is introduced into the temperature-adjusting bag 42 through the connector 421, and then the air bag 41 is inflated.

Pouring concrete: pouring concrete which is stirred uniformly in advance into the die cavity.

Removing the mold: and after the concrete is hardened to meet certain requirements, deflating and draining, dismantling the inner mold shaping assembly 4, and then taking down the inner mold 3. And continuously keeping water supply to the heat exchange assembly 23, stopping water supply after the mold removal time is up, removing the outer mold 1, and then performing watering maintenance to obtain the prefabricated gap type drainage ditch.

The embodiment of the application also discloses a construction method of the prefabricated gap type drainage ditch, which comprises the following steps of:

Assembling a mold: the side plates 12, the front end plate 13, the rear end plate 14 and the bottom plate 11 are fixedly connected together by bolts to form the outer mold 1. The supporting framework 2 is placed in the outer die 1 and is positioned and fixed, the inner die 3 is inserted from the through hole of the front end plate 13, and then the uninflated inner die shaping assembly 4 is placed.

Temperature adjustment and inflation: and (3) according to the solidification hardening curve of the proportioned concrete measured in a laboratory at different temperatures, and combining the environment temperature and the form removal time, selecting and determining the water supply temperature. The temperature-adjusting water is introduced into the heat exchange assembly 23 through the inlet pipe 51, the temperature-adjusting water is introduced into the temperature-adjusting bag 42 through the connector 421, and then the air bag 41 is inflated.

Removing the mold: and after the concrete is hardened to meet certain requirements, deflating and draining, dismantling the inner mold shaping assembly 4, and then taking down the inner mold 3. And continuously keeping water flowing to the heat exchange assembly 23, stopping water supply after the mould removal time is up, and removing the outer mould 1 to obtain the prefabricated gap type drainage ditch.

Excavating a groove: and excavating a groove by using a tool according to the design requirements of a drawing, and flattening the bottom of the groove.

And (3) mounting a prefabricated drainage ditch 6: the prefabricated drainage ditches 6 are paved in sequence, and sealing strips are placed at the joints of the two adjacent prefabricated drainage ditches 6.

Backfilling the foundation soil: and backfilling the trench-excavated foundation soil into the trenches on two sides of the prefabricated drainage ditch 6 and compacting.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a prefabricated slot formula escape canal, is including being the cuboid structure and having the concrete base member of penetrability drainage channel, opening (62) with the drainage channel intercommunication are seted up to the one side of concrete base member, have buried supporting framework (2), its characterized in that in the concrete base member underground: the supporting framework (2) comprises a heat exchange assembly (23), and the heat exchange assembly (23) comprises a plurality of first heat exchange pieces and a plurality of second heat exchange pieces, wherein the first heat exchange pieces are arranged close to the surface of the concrete substrate, and the second heat exchange pieces are arranged close to the inner wall of the drainage channel.

2. The pre-fabricated slot drain of claim 1, wherein: the first heat exchange piece and the second heat exchange piece comprise heat exchange tubes, one ends of the heat exchange tubes are provided with inflow holes, the other ends of the heat exchange tubes are provided with outflow holes, and the inflow holes and the outflow holes are positioned on two sides of the opening (62); the inflow hole on the first heat exchange piece and the inflow hole on the second heat exchange piece are positioned on the same side of the opening (62) and exposed out of the concrete matrix, and the outflow hole on the first heat exchange piece and the outflow hole on the second heat exchange piece are positioned on the other side of the opening (62) and exposed out of the concrete matrix.

3. The pre-fabricated slot drain of claim 1, wherein: the first heat exchange piece and the second heat exchange piece comprise heat exchange tubes, one ends of the heat exchange tubes are provided with inflow holes, the other ends of the heat exchange tubes are provided with outflow holes, and the inflow holes and the outflow holes are positioned on two sides of the opening (62); the inflow hole in the first heat exchange piece and the outflow hole in the second heat exchange piece are located on the same side of the opening (62) and exposed out of the concrete substrate, and the outflow hole in the first heat exchange piece is connected with the inflow hole in the second heat exchange piece and located in the concrete substrate.

4. The pre-fabricated gap drain of claim 2 or 3, wherein: the support frame (2) further comprises a plurality of transverse ribs (21) and a reinforcement cage fixedly formed by longitudinal ribs (22), and each heat exchange tube is fixedly connected with the plurality of transverse ribs (21) in a surrounding mode.

5. A prefabricated mould for a prefabricated gap drain according to any one of claims 1 to 4, which comprises an outer mould (1) and an inner mould (3) which are detachably connected, wherein the outer mould (1) and the inner mould (3) form a mould cavity for manufacturing a concrete matrix, the bottom wall of the outer mould (1) is provided with an opening (62) plate (111) for forming an opening (62), and the prefabricated mould is characterized in that: the outer die (1) is provided with a temperature control source conveying assembly (5) which is used for being connected with the heat exchange assembly (23) and conveying a heat exchange medium to the heat exchange assembly (23).

6. The pre-fabricated slot drain mold of claim 5, wherein: the temperature control source conveying assembly (5) comprises a flow inlet pipe (51) and a flow outlet pipe (52), the flow inlet pipe (51) and the flow outlet pipe (52) are connected with connectors (521) penetrating through the bottom wall of the outer die (1), and the connectors (521) are connected with the first heat exchange piece and the second heat exchange piece.

7. The prefabricated mold for a prefabricated gap drain according to claim 6, wherein: the connecting port (521) is inserted with the first heat exchange piece and the second heat exchange piece.

8. The prefabricated mold for a prefabricated gap drain according to claim 5, wherein: centre form (3) are the elasticity pipe of one side opening (62), are connected with centre form (3) design subassembly in centre form (3), centre form (3) design subassembly includes inside gasbag (41) and the cladding bag (42) that adjusts the temperature of gasbag (41) outside, and the one end fixedly connected with of gasbag (41) is used for inflating air cock (411) of gassing, and the one end of bag (42) that adjusts the temperature is connected with connector (421) that are used for filling water and drainage.

9. The construction process of the prefabricated gap type drainage ditch is characterized in that: the method comprises the following steps:

prefabricating a drainage ditch: prefabricating a support framework (2), assembling a mold, adjusting temperature, inflating, pouring concrete, removing the mold and maintaining to obtain a prefabricated drainage ditch (6);

and (3) installing a drainage ditch: laying the prefabricated drainage ditches (6) into the grooves, and sealing the joints of two adjacent prefabricated drainage ditches (6);

backfilling the foundation soil: and backfilling the foundation soil with the excavated grooves into the grooves on two sides of the prefabricated drainage ditch (6).