Transverse channel secondary lining pouring device
By designing a stainless steel casting pipe and a porous structure for the secondary lining of the transverse channel, the problem of discontinuous casting of the secondary lining of the transverse channel was solved, achieving uniform and dense concrete casting and improving construction quality and efficiency.
Patent Information
- Application Number
- CN202520071121.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-01-13
AI Technical Summary
In the process of pouring concrete for the secondary lining of the cross passage, the existing technology has problems such as discontinuous pouring, many construction joints, uneven pouring and non-compaction, which affect the construction quality and efficiency.
A transverse channel secondary lining casting device was designed. A stainless steel casting pipe was laid from the first end to the last end of the transverse channel, and multiple casting holes of different diameters were set at intervals in the pipe body. The principle of concrete backflow was used to achieve uninterrupted backflow casting, avoiding the need to stop connecting the concrete pump pipe.
It achieves uniform and dense pouring of secondary lining concrete for long-distance cross passages, reduces construction joints, improves pouring quality and efficiency, and features simple structure and easy operation.
Smart Images
Figure CN223634718U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a tunnel construction technical field especially relates to a cross aisle secondary lining pouring device. BACKGROUND
[0002] The cross aisle is the key link of the tunnel system, and is usually arranged between the interval tunnels of the subway. The secondary lining concrete pouring is an important link of the cross aisle construction, and the quality thereof is directly related to the waterproofness, durability and overall stability of the tunnel. When the secondary lining concrete pouring of the cross aisle is carried out, the cooperation of the concrete pump and the concrete pump pipe is usually used to pour from near to far, and the concrete pump pipe needs to be connected constantly in the pouring process, and the pouring needs to be paused every time the connection is made, and the pause time is relatively long, so that the pouring is discontinuous, a plurality of construction joints are generated, and the problems such as uneven and non-dense pouring of the cavity and the rough surface are caused, which seriously affect the pouring quality and the pouring efficiency. SUMMARY
[0003] The utility model discloses in order to solve the above-mentioned technical problem, provides a cross aisle secondary lining pouring device, this pouring device is quick, easy operation, can effectively improve long distance cross aisle secondary lining concrete pouring evenness and compactness, improves secondary lining concrete pouring quality and pouring efficiency.
[0004] In order to realize the above-mentioned purpose, the technical scheme that the utility model adopts is as follows: a cross aisle secondary lining pouring device is provided, which comprises a cross aisle, a concrete pump and a concrete pump pipe connected at the head end of the cross aisle, and a pouring pipe connected to the concrete pump pipe and laid along the length direction of the cross aisle from the head end to the tail end of the cross aisle, a first pouring hole is arranged at the tail end of the pouring pipe, a plurality of second pouring holes are arranged at intervals along the length direction of the pouring pipe, the diameter of the first pouring hole is greater than that of the second pouring hole, so that the concrete is preferentially output from the first pouring hole.
[0005] As a further improvement of the utility model, the cross aisle has a vault, and the pouring pipe is laid at the vault position of the cross aisle.
[0006] As a further improvement of the utility model, the pouring pipe is made of stainless steel pipe.
[0007] As a further improvement of the utility model, the distance between the two adjacent second pouring holes is at least 1 meter.
[0008] As a further improvement of the utility model, the distance between the two adjacent second pouring holes is 2 meters.
[0009] As a further improvement of the utility model, the second pouring holes are arranged on the left and right sides of the pouring pipe respectively.
[0010] The pouring device is provided with a pouring pipe, the pouring pipe is laid from the head end of the horizontal channel to the tail end of the horizontal channel, concrete is first output from the first pouring hole at the tail end of the pouring pipe during pouring, the concrete in the pouring pipe is backflowed to the direction of the head end of the pouring pipe at the first pouring hole under extrusion after pouring and filling is completed at the first pouring hole, and is sequentially output from the second pouring holes from the tail end to the head end in sequence during the backflow process, uninterrupted back-pouring from far to near is realized, it is not necessary to pause and connect the concrete pump pipe during pouring, thereby reducing the generation of construction joints, realizing uniform and dense long-distance horizontal channel secondary lining pouring, effectively improving the concrete pouring quality and pouring efficiency, and having the characteristics of simple structure and easy operation. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a whole structure schematic view of the utility model;
[0012] Mark description: horizontal channel 1, vault 11, concrete pump 2, concrete pump pipe 3, pouring pipe 4, first pouring hole 41, second pouring hole 42. DETAILED DESCRIPTION
[0013] The utility model will be further described in connection with specific embodiment and drawings.
[0014] As Figure 1 Indicated, a horizontal channel secondary lining pouring device, including horizontal channel 1, concrete pump 2, concrete pump pipe 3 and pouring pipe 4.
[0015] Concrete pump 2 and concrete pump pipe 3 are connected, and are all arranged at the head end of horizontal channel 1. Pouring pipe 4 adopts stainless steel pipe, the head end of pouring pipe 4 is connected with concrete pump pipe 3, the tail end of pouring pipe 4 is laid from the head end of horizontal channel 1 to the tail end of horizontal channel 1 along the length direction of horizontal channel 1, and is laid on the vault 11 position at the top of horizontal channel 1. The tail end of pouring pipe 4 is provided with first pouring hole 41. A plurality of second pouring holes 42 are uniformly arranged on the left and right sides of the pipe body of pouring pipe 4 along the length direction at 2 meter intervals. The diameter of first pouring hole 41 is greater than the diameter of second pouring hole 42, so that concrete is preferentially output from first pouring hole 41. In other embodiments, the interval between second pouring holes 42 can also be 1 meter or more than 1 meter.
[0016] When the long-distance horizontal passage 1 is poured with the second lining, the concrete is transported along the pouring pipe 4 under the pumping pressure of the concrete pump 2 and is output from the first pouring hole 41 at the tail end of the pouring pipe 4. After the first pouring hole 41 is poured and compacted, the concrete cannot be output from the first pouring hole 41, so it is extruded at the first pouring hole 41 and flows back. During the backflow process, the concrete is sequentially output from the second pouring holes 42 in the order from the tail end to the head end, that is, after the previous second pouring hole 42 is filled and compacted, the concrete flows back to the next second pouring hole 42 for output, realizing uninterrupted backflow pouring from far to near, from the tail end to the head end. During pouring, the concrete pump pipe 3 does not need to be temporarily connected, thereby reducing the generation of construction joints, realizing uniform and compact long-distance horizontal passage second lining pouring, improving the concrete pouring quality and pouring efficiency.
[0017] The above examples are only used to facilitate the illustration of the present application, and any person skilled in the art can make equivalent embodiments by making partial changes or modifications within the scope of the technical features disclosed in the present application without departing from the technical features of the present application.
Claims
1. A two-liner cross-pouring device comprising a cross-passage, a first end of the cross-passage being provided with a connected concrete pump and a concrete pump pipe, characterized in that: The pouring pipe is connected with the concrete pump pipe and laid along the length direction of the transverse channel from the head end to the tail end of the transverse channel, the tail end of the pouring pipe is provided with a first pouring hole, a plurality of second pouring holes are arranged on the pouring pipe along the length direction of the pouring pipe, and the diameter of the first pouring hole is greater than the diameter of the second pouring hole, so that the concrete is preferentially output from the first pouring hole.
2. A cross-channel two-form two-liner pouring device according to claim 1, characterized in that: The transverse channel has a vault, and the pouring pipe is laid at the vault position of the transverse channel.
3. A two-formwork cross-passage pouring device according to claim 1, characterized in that: The pouring pipe is a stainless steel pipe.
4. A cross-channel two-form two-liner pouring device according to claim 1, characterized in that: The interval between two adjacent second pouring holes is at least 1 meter.
5. A cross-channel two-form two-liner pouring apparatus according to claim 4, characterized in that: The interval between two adjacent second pouring holes is 2 meters.
6. A two-formwork cross-passage pouring device according to claim 1, characterized in that: The second pouring holes are respectively arranged on the left and right sides of the pouring pipe.