阅读说明：本技术 一种用于明挖隧道的养护结构 (Maintenance structure for open cut tunnel ) 是由 陈潮学 叶琦 王博谋 惠浩 侯驰 于 2021-09-08 设计创作，主要内容包括：本发明涉及一种用于明挖隧道的养护结构,其包括支撑架,支撑架上设有养护保温机构,养护保温机构包括支撑组件、加热组件和导热容器,支撑组件设置在支撑架上,加热组件设置支撑组件上,加热组件包括水管、水箱、连接管、回流管、水泵和用于对水箱内的水进行加热的加热件,水箱设置在支撑架上,水泵的进水端通过连接管与水箱连通,水泵的出水端连通水管,水管的一端插入导热容器内并穿出导热盒且与回流管连通,回流管与水箱连通。本申请能够提高衬砌施工质量的效果。(The invention relates to a maintenance structure for an open cut tunnel, which comprises a support frame, wherein a maintenance and heat preservation mechanism is arranged on the support frame, the maintenance and heat preservation mechanism comprises a support component, a heating component and a heat conduction container, the support component is arranged on the support frame, the heating component is arranged on the support component, the heating component comprises a water pipe, a water tank, a connecting pipe, a return pipe, a water pump and a heating element for heating water in the water tank, the water tank is arranged on the support frame, the water inlet end of the water pump is communicated with the water tank through the connecting pipe, the water outlet end of the water pump is communicated with the water pipe, one end of the water pipe is inserted into the heat conduction container, penetrates out of the heat conduction box and is communicated with the return pipe, and the return pipe is communicated with the water tank. The lining construction quality can be improved.)

1. The utility model provides a maintenance structure for open cut tunnel, includes the support frame, its characterized in that: be equipped with maintenance heat preservation mechanism on the support frame, maintenance heat preservation mechanism includes supporting component, heating element and heat conduction container, the supporting component sets up on the support frame, heating element sets up on the supporting component, heating element includes water pipe (14), water tank (15), connecting pipe (16), back flow (17), water pump (18) and is used for carrying out the heating member that heats to the water in water tank (15), water tank (15) set up on the support frame, the end of intaking of water pump (18) is through connecting pipe (16) and water tank (15) intercommunication, the play water end intercommunication water pipe (14) of water pump (18), the one end of water pipe (14) is inserted in the heat conduction container and is worn out the heat conduction container and communicate with back flow (17), back flow (17) and water tank (15) intercommunication.

2. A maintenance structure for an open trench tunnel according to claim 1, wherein: the heating element is a heating pipe (19).

3. A maintenance structure for an open trench tunnel according to claim 2, wherein: be equipped with temperature sensor (28) on water tank (15), the response end of temperature sensor (28) sets up towards the water in water tank (15), temperature sensor (28) pass through control system and heating pipe (19) electric connection.

4. A maintenance structure for an open trench tunnel according to claim 1, wherein: the support assembly comprises a support column (3), a gear (4), a linkage rod (5), a rack (6) and an electric push rod (7), the electric push rod (7) is connected to the support frame, the push rod of the electric push rod (7) is connected with the rack (6), the gear (4) is rotatably connected to the support frame and meshed with the rack (6), the gear (4) is sleeved on the linkage rod (5), the linkage rod (5) is connected with the support column (3), and the linkage rod (5) is rotatably connected to the support frame.

5. A maintenance structure for an open trench tunnel according to claim 4, wherein: the support column (3) is provided with a telescopic assembly, the telescopic assembly comprises a floating rod (9), a sealing ring (10) and a floating plate (11), the support column (3) is provided with a power groove (12), the sealing ring (10) is sleeved on the side wall of the outer ring of the floating plate (11), the floating plate (11) is in sliding fit with the power groove (12), the sealing ring (10) is attached to the side wall of the power groove (12), the floating plate (11) is connected with the floating rod (9), one end of the floating rod (9) is connected with a heat conduction container, a three-way valve (20) is communicated with the water pipe (14), one water outlet of the three-way valve (20) is communicated with a water supply pipe (21), one end of the water supply pipe (21) is communicated with the power groove (12), the power groove (12) is communicated with a water drainage pipe (22), and one end of the water drainage pipe (22) is communicated with a water tank (15), and a control valve (23) is arranged on the drainage pipe (22).

6. A maintenance structure for an open trench tunnel according to claim 5, wherein: the control valve (23) is arranged at one end of the water discharge pipe (22) close to the support column (3).

7. A maintenance structure for an open trench tunnel according to claim 5, wherein: the glass window (24) used for observing the water level in the power groove (12) is arranged on the supporting column (3), and scales (25) are arranged on the glass window (24).

8. A maintenance structure for an open trench tunnel according to claim 1, wherein: one end of the heat conduction container, which is close to the concrete, is detachably connected with heat insulation cotton (27).

Technical Field

The invention relates to the technical field of open cut tunnel construction, in particular to a maintenance structure for an open cut tunnel.

Background

A tunnel is a building constructed underground or underwater or in a mountain, with railways or roads for motor vehicles to pass through. The integral lining construction technology is one of the common construction methods for tunnel lining construction, steel bars are bound in advance and are arranged on a template trolley, then the operation trolley is driven to a working position for formwork erection positioning and end formwork installation, and finally concrete is pumped into a formwork to complete pouring. After the concrete is solidified, a permanent reinforced concrete supporting structure is formed on the tunnel body, so that the deformation or collapse of the surrounding rock can be prevented.

In tunnel construction, the lining is generally cured naturally or cured by spraying water. However, in winter construction, because the temperature is low in winter, water sprayed on concrete is easy to freeze, so that the temperature of the poured concrete is reduced, the concrete is easy to freeze, and when the concrete is thawed, the phenomena of cracking and peeling can occur, and the lining construction quality is further reduced.

Disclosure of Invention

In order to improve lining construction quality, the application provides a maintenance structure for open cut tunnel.

The application provides a maintenance structure for open cut tunnel adopts following technical scheme:

the utility model provides a maintenance structure for open cut tunnel, includes the support frame, be equipped with maintenance heat preservation mechanism on the support frame, maintenance heat preservation mechanism includes supporting component, heating element and heat conduction container, the supporting component sets up on the support frame, heating element sets up on the supporting component, heating element includes water pipe, water tank, connecting pipe, back flow, water pump and is used for carrying out the heating member that heats to the water in the water tank, the water tank sets up on the support frame, the end of intaking of water pump passes through connecting pipe and water tank intercommunication, the play water end intercommunication water pipe of water pump, the one end of water pipe is inserted in the heat conduction container and is worn out the heat conduction container and communicate with the back flow, back flow and water tank intercommunication.

Through adopting above-mentioned technical scheme, during the use, the operator heaies up through the water of heating member in to the water tank, later make heat conduction container's lateral wall and tunnel concrete's lateral wall laminating, then, start the water pump, the water pump is extracted the hot water in with the water tank, and carry in the water pipe through the connecting pipe, when hot water passes through heat conduction container, the heat transfer of hot water gives heat conduction container, give tunnel concrete by heat conduction container again, play the effect of intensification to it, then get back to the water tank internal heating by the back flow again, with this heating cycle that forms, the possibility that the concrete temperature after having reduced to pour descends, to sum up, lining construction quality can be improved in this application.

Optionally, the heating element is a heating tube.

Through adopting above-mentioned technical scheme, the operator is to the heating pipe circular telegram, can play the effect to water heating, convenient operation.

Optionally, a temperature sensor is arranged on the water tank, the sensing end of the temperature sensor faces the water in the water tank, and the temperature sensor is electrically connected with the heating pipe through a control system.

Through adopting above-mentioned technical scheme, after temperature that temperature sensor's response end detected the water in the water tank is less than the threshold value of predetermineeing, temperature sensor passed through control system and switched on the heating pipe, has reduced and has lasted the circular telegram with the heating pipe and heat and waste the possibility of electric energy.

Optionally, the supporting component comprises a supporting column, a gear, a linkage rod, a rack and an electric push rod, the electric push rod is connected to the supporting frame, the push rod of the electric push rod is connected to the rack, the gear is connected to the supporting frame in a rotating mode and meshed with the rack, the gear is sleeved on the linkage rod, the linkage rod is connected to the supporting column, and the linkage rod is connected to the supporting frame in a rotating mode.

Through adopting above-mentioned technical scheme, the operator starts electric putter, and electric putter's push rod drives the rack and removes, and then makes and rack toothing's gear revolve, and the gear drives the gangbar and rotates, and then makes the support column rotate, makes the heat conduction container rotate, makes things convenient for the operator to heat the maintenance to the concrete of different positions on the tunnel.

Optionally, a telescopic assembly is arranged on the support column, the telescopic assembly comprises a floating rod, a sealing ring and a floating plate, a power groove is formed in the support column, the sealing ring is sleeved on the side wall of the outer ring of the floating plate, the floating plate is in sliding fit with the power groove, the sealing ring is attached to the side wall of the power groove, the floating plate is connected with the floating rod, one end of the floating rod is connected with the heat conduction container, a three-way valve is communicated with the water pipe, one water outlet of the three-way valve is communicated with the water supply pipe, one end of the water supply pipe is communicated with the power groove, the power groove is communicated with a water drain pipe, one end of the water drain pipe is communicated with the water tank, and a control valve is arranged on the water drain pipe.

Through adopting above-mentioned technical scheme, when a delivery port and the delivery pipe intercommunication of three-way valve, under the effect of water pump, water in the water tank passes through the delivery pipe and gets into the power groove, make the water level in the power groove rise, and then make the floating plate rise, the floating plate moves the loop lever rebound, make the heat conduction container rebound, when needs reduce the height of heat conduction container, the operator makes another delivery port and the water pipe intercommunication of three-way valve, open control flap, make the water of power inslot discharge power inslot, and then make the high decline of heat conduction container place, consequently, the water pump not only can provide power for hydrothermal circulation, and highly provide power for adjusting the heat conduction container.

Optionally, the control valve is arranged at one end of the drain pipe close to the support column.

Through adopting above-mentioned technical scheme, when the operator adds water to the power groove, control valve sets up in the one end that is close to the drain pipe and is close to the support column, has reduced the water yield in the power groove entering drain pipe, has played the effect of water conservation.

Optionally, a glass window for observing the water level in the power tank is arranged on the supporting column, and scales are arranged on the glass window.

Through adopting above-mentioned technical scheme, the operator can observe the water yield in the power groove through the glass window, and the ascending height of heat conduction container is confirmed to the scale on the rethread glass window, has improved the accuracy of adjusting.

Optionally, one end of the heat conduction container close to the concrete is detachably connected with heat insulation cotton.

Through adopting above-mentioned technical scheme, the cotton setting of heat preservation can play heat retaining effect, and the cotton deformation that can take place that keeps warm simultaneously is favorable to with the concrete laminating on the tunnel, has increased the heat preservation area to the concrete on the tunnel, has improved the heat preservation effect.

In summary, the present application includes at least one of the following beneficial technical effects:

by arranging the maintenance heat-preservation mechanism, an operator heats water in the water tank through the heating element, when hot water passes through the heat-conducting container, heat of the hot water is transferred to the heat-conducting container, then the hot water is transferred to the tunnel concrete through the heat-conducting container, the tunnel concrete is heated, and then the hot water returns to the water tank through the return pipe to be heated, so that a heating cycle is formed, the possibility of temperature reduction of the poured concrete is reduced, and therefore, the lining construction quality can be improved;

this application is through setting up temperature sensor, and after temperature that the induction end as temperature sensor detected the water in the water tank was less than predetermined threshold value, temperature sensor passed through control system and carried out the circular telegram to the heating pipe, has reduced and has lasted the circular telegram with the heating pipe and heat and waste the possibility of electric energy.

Drawings

Fig. 1 is a schematic view for embodying a maintenance structure for an open trench tunnel in the embodiment.

Fig. 2 is a sectional view mainly used for embodying the internal structure of the heat conductive box in the embodiment.

Fig. 3 is an enlargement of portion a of fig. 2.

Fig. 4 is a sectional view for embodying the structure of a heating pipe in a water tank.

Description of reference numerals:

1. a support plate; 2. a self-locking universal wheel; 3. a support pillar; 4. a gear; 5. a linkage rod; 6. a rack; 7. an electric push rod; 8. a bearing seat; 9. a floating rod; 10. a seal ring; 11. a floating plate; 12. a power tank; 13. a heat conducting box; 14. a water pipe; 15. a water tank; 16. a connecting pipe; 17. a return pipe; 18. a water pump; 19. heating a tube; 20. a three-way valve; 21. a water supply pipe; 22. a drain pipe; 23. a control valve; 24. a glass window; 25. calibration; 26. magic tape; 27. heat preservation cotton; 28. a temperature sensor.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a maintenance structure for an open cut tunnel. Referring to fig. 1, a maintenance structure for open cut tunnel includes the support frame, and the support frame includes backup pad 1 and auto-lock universal wheel 2, and four angles departments of backup pad 1 all are provided with auto-lock universal wheel 2.

Referring to fig. 1, a maintenance and heat preservation mechanism is arranged on a support plate 1, and the maintenance and heat preservation mechanism comprises a support assembly, a heating assembly and a heat conduction container. The supporting component comprises a supporting column 3, a gear 4, a linkage rod 5, a rack 6 and an electric push rod 7. Electric putter 7 level fixed connection is in backup pad 1, and electric putter 7's push rod fixed connection rack 6, rack 6's plain noodles and backup pad 1 laminating and sliding fit.

Referring to fig. 1, two bearing seats 8 are fixedly connected to a supporting plate 1, a linkage rod 5 is rotatably connected between the two bearing seats 8, a gear 4 is sleeved on the linkage rod 5, the gear 4 is located above a rack 6, the linkage rod 5 is fixedly connected with a supporting column 3, and the gear 4 is meshed with the rack 6.

Referring to fig. 2 and 3, a telescopic assembly is arranged on the supporting column 3, the telescopic assembly comprises a floating rod 9, a sealing ring 10 and a floating plate 11, a power groove 12 is formed in the top end of the supporting column 3, the power groove 12 is formed in the length direction of the supporting column 3, the sealing ring 10 is sleeved on the outer ring side wall of the floating plate 11 and is bonded with the floating plate 11, the floating plate 11 is inserted into the power groove 12 and is in sliding fit with the power groove 12, and the sealing ring 10 is attached to the side wall of the power groove 12.

Referring to fig. 1 and 2, the floating rod 9 is fixedly connected to the floating rod 9, one end of the floating rod 9 is fixedly connected to the heat conduction container, the heat conduction container is made of a heat conduction box 13, the heat conduction box 13 is made of aluminum, heat conduction can be conducted, the price is low, and the heat conduction box 13 is arranged in a circular arc shape and is convenient to be attached to the side wall of the tunnel.

Referring to fig. 1 and 4, heating element sets up in backup pad 1, and heating element includes water pipe 14, water tank 15, connecting pipe 16, back flow 17, water pump 18 and is used for carrying out the heating member that heats to the water in the water tank 15, and the heating member is heating pipe 19, and heating pipe 19 is snakelike distribution on the lateral wall of water tank 15, has increased the area of contact of heating pipe 19 with the water in the water tank 15, has improved the heating effect, and water pipe 14, connecting pipe 16 and back flow 17 are the hose.

Referring to fig. 1 and 2, a water tank 15 is fixedly connected to a support plate 1, a water pump 18 is fixedly connected to the water tank 15, a water inlet of the water pump 18 is communicated with the water tank 15 through a connecting pipe 16, a water outlet end of the water pump 18 is communicated with a water pipe 14, one end of the water pipe 14 is inserted into the heat conduction box 13 and penetrates out of the heat conduction box 13 and is communicated with a return pipe 17, the water pipe 14 in the heat conduction box 13 is spirally arranged, the area of air contact between the water pipe 14 and the heat conduction box 13 is increased, and the return pipe 17 is communicated with the water tank 15.

Referring to fig. 1, a three-way valve 20 is communicated with a water pipe 14, the three-way valve 20 has a water inlet and two water outlets, a water outlet of the three-way valve 20 is communicated with a water supply pipe 21, the other water outlet is communicated with the water pipe 14, one end of the water supply pipe 21 is communicated with a power tank 12, the water supply pipe 21 is a hose, the power tank 12 is communicated with a drain pipe 22, the drain pipe 22 is a hose, one end of the drain pipe 22 is communicated with a water tank 15, the drain pipe 22 is located below the water supply pipe 21, a control valve 23 is arranged on the drain pipe 22, the control valve 23 is arranged at one end of the drain pipe 22 close to a support column 3, the amount of water entering the drain pipe 22 from the power tank 12 is reduced, and the water saving effect is achieved. In a natural state, a part of water is contained in the power tank 12, and the floating plate 11 is positioned above the water supply pipe 21.

Referring to fig. 1, a glass window 24 for observing the water level in the power tank 12 is disposed on the support column 3, a scale 25 is disposed on the glass window 24, and the scale 25 is disposed along the length direction of the glass window 24. One side of the heat conduction box 13 close to the concrete is detachably connected with heat insulation cotton 27 through a magic tape 26 and the heat conduction box 13, when the heat insulation cotton 27 is damaged, an operator can split the hook surface and the suede surface of the magic tape 26 to replace the heat insulation cotton 27; the setting of heat preservation cotton 27 not only can have heat retaining effect to the concrete, can take place deformation simultaneously, is favorable to laminating with the concrete, has increased area of contact.

Referring to fig. 1, a temperature sensor 28 is disposed on the water tank 15, a sensing end of the temperature sensor 28 is disposed toward water in the water tank 15, and the temperature sensor 28 is electrically connected to the heating pipe 19 through a control system. When the sensing end of the temperature sensor 28 detects that the temperature of the water in the water tank 15 is lower than the preset threshold value, the temperature sensor 28 energizes the heating pipe 19 through the control system, so that the possibility of wasting electric energy due to the fact that the heating pipe 19 is continuously energized for heating is reduced.

The implementation principle of the maintenance structure for the open cut tunnel in the embodiment of the application is as follows: when the device is used, an operator moves the support frame into a tunnel to be constructed, one water outlet of the three-way valve 20 is communicated with the water supply pipe 21, the operator starts the water pump 18, the water pump 18 extracts water in the water tank 15, the water pump 18 moves the water into the water supply pipe 21 through the connecting pipe 16 and finally enters the power tank 12, the water level in the power tank 12 rises, the floating plate 11 rises, the floating belt floating rod 9 rises, the operator observes the rising height through the scale 25 on the glass window 24, the adjustment accuracy is improved, and the heat insulation cotton 27 is attached to concrete on the tunnel;

then, an operator starts the electric push rod 7, the push rod of the electric push rod 7 drives the rack 6 to move, the rack 6 is meshed with the gear 4, the gear 4 drives the linkage rod 5 to rotate, the support column 3 is further rotated, the heat conduction box 13 is further finely adjusted, the degree of the heat insulation cotton 27 attached to the concrete is further improved, then, the operator enables the other water outlet of the three-way valve 20 to be communicated with the water pipe 14, the operator conducts electricity to the heating pipe 19 to enable the water temperature in the water tank 15 to rise, the water pump 18 conveys the water with the temperature rising in the water tank 15 into the heat conduction box 13, the heat of the water is transferred to the heat insulation cotton 27 through the heat conduction box 13 and finally transferred to the concrete to play a role of temperature rising, and then the water returns to the water tank 15 through the return pipe 17 to be heated, so that a heating cycle is formed, the water pump 18 not only provides power for hot water circulation, but also improves the power for lifting the height of the heat conduction box 13, resources are saved, and therefore the possibility of temperature reduction of the poured concrete is reduced, and lining construction quality is improved.

When the height of the floating rod 9 needs to be reduced, an operator opens the control valve 23 to communicate the power groove 12 with the water tank 15 through the drain pipe 22, and under the action of gravity of the heat conduction box 13 and the floating rod 9, the floating plate 11 is pressed downwards to further discharge the water in the power groove 12, and after the heat conduction box 13 is reduced to a proper height, the operator closes the control valve 23 to further reduce the vertical height of the heat conduction box 13.

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.