Drainage pipeline structure for slip form construction

Abstract

The drainage pipeline structure comprises a drainage blind ditch, a communication part and a drainage part, the drainage blind ditch is arranged between a rock mass surface and a vertical shaft lining, and the drainage blind ditch is used for collecting leakage water of a rock mass; the communicating part comprises a three-way connecting piece, a pre-buried drainage pipe and a filling material, the pre-buried drainage pipe extends in the thickness direction of the vertical shaft lining and penetrates through the vertical shaft lining, the three-way connecting piece communicates with the drainage blind ditch and the pre-buried drainage pipe, and the filling material is arranged on the side, away from the three-way connecting piece, of the pre-buried drainage pipe and detachably connected with the pre-buried drainage pipe; the end parts of the embedded drainage pipe and the filling material do not exceed the inner wall surface of the vertical shaft lining; and the drainage part is configured to be connected with the pre-embedded drainage pipe after the filling material is detached, and the drainage part is used for draining leakage water. The drainage pipeline structure for the slip form construction does not affect normal construction of the slip form, and can ensure safe drainage of mountain leakage water after the slip form construction is completed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pumped storage power station, in particular to a drainage pipeline structure for slip membrane construction. BACKGROUND

[0002] Pumped storage power stations are mostly developed with basements, and high-voltage cables in underground powerhouses need to be laid to switch stations and then connected to power grid systems. When the height difference between the underground powerhouse and the switch station is large, the outgoing line shaft mode is generally used for delivery. For the outgoing line shaft with high drop, in order to improve the construction efficiency, the slip membrane construction process is often used. Since the outgoing line shaft is arranged in the mountain, the outside of the mountain will continuously have seepage water flowing out. In order to ensure the safety of the shaft structure, drainage pipes need to be embedded in the lining concrete to drain the seepage water of the mountain. However, due to the requirement of the slip membrane construction process, the template is not allowed to have pipes exposed from the lining during the rising process, which leads to the inconvenience of seepage water drainage after the completion of the slip membrane construction. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a drainage pipeline structure for slip membrane construction, which will not affect the normal construction of the slip membrane and can ensure the safe drainage of the seepage water of the mountain after the completion of the slip membrane construction.

[0004] The drainage pipeline structure for slip membrane construction provided by the present application comprises: a drainage blind ditch, which is arranged between the rock mass surface and the shaft lining, and is used to collect the seepage water of the rock mass;

[0005] A communication part, which comprises a tee connector, a pre-embedded drainage pipe and a filling material, the pre-embedded drainage pipe extends along the thickness direction of the shaft lining and penetrates through the shaft lining, the tee connector communicates the drainage blind ditch and the pre-embedded drainage pipe, the filling material is arranged on the side of the pre-embedded drainage pipe away from the tee connector, the filling material is detachably connected with the pre-embedded drainage pipe, and the end portions of the pre-embedded drainage pipe and the filling material do not exceed the inner wall surface of the shaft lining;

[0006] A drainage part, which is configured to be connected with the pre-embedded drainage pipe after the filling material is detached, and is used to drain the seepage water.

[0007] In addition, the drainage pipeline structure for slip membrane construction provided by the present application can also have the following additional technical features:

[0008] In one alternative embodiment, there are multiple drainage blind ditches and connecting sections, which are arranged at intervals along the axial direction of the shaft lining. The drainage section includes a vertical drainage pipe and multiple connecting drainage pipes. The vertical drainage pipe extends along the axial direction of the shaft lining, and one end of the connecting drainage pipe is connected to the pre-embedded drainage pipe, while the other end is connected to the vertical drainage pipe.

[0009] In one alternative, the drainage blind ditch has a size of 70 x 30 mm, the pre-buried drainage pipe has a size of DN65, the connecting drainage pipe has a size of DN80, and the vertical drainage pipe has a size of DN100.

[0010] In one alternative, the filling material is wrapped around the outer wall of the pre-embedded drainage pipe. The filling material is poured into the shaft lining along with the pre-embedded drainage pipe during construction. After pouring, the filling material is removed to form an installation cavity for installing the drainage part.

[0011] In one alternative, the filling material is hemp rope, and the thickness of the filling material wrapped around the pre-embedded drainage pipe is not less than 30 mm, and the wrapping length is not less than 100 mm.

[0012] The beneficial effects of this application are as follows:

[0013] The drainage pipe structure for slipform construction described in this application features a detachable filler material at the outlet end of the pre-embedded drainage pipe, with both the ends of the pre-embedded drainage pipe and the filler material not exceeding the inner wall surface of the shaft lining. This ensures normal slipform construction. The detachable filler material can be removed after construction, reserving installation space for the drainage section. Thus, the drainage section can be installed immediately after construction to safely discharge seepage water from the mountain, effectively improving the reliability of the shaft seepage drainage system and saving project costs.

[0014] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0015] Figure 1 A schematic diagram of the installation of the drainage pipeline structure provided in this application within the shaft lining;

[0016] Figure 2 for Figure 1 An enlarged structural diagram of the drainage pipe structure at point A;

[0017] Figure 3 This is a schematic diagram of the connection between the vertical drainage pipe and the connecting drainage pipe provided in this application.

[0018] Attached reference numerals: 1. Drainage blind ditch; 2. Rock face; 3. Shaft lining; 4. Tee connector; 5. Embedded drainage pipe; 6. Filling material; 7. Vertical drainage pipe; 8. Connecting drainage pipe.

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0020] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0021] It should be understood that the described embodiments are merely some embodiments of this application, and not all embodiments. All other technical solutions obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0023] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0024] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0025] like Figures 1-3As shown in the figure, this application embodiment provides a drainage pipe structure for slipform construction. The drainage pipe structure for slipform construction mainly includes a drainage blind ditch 1, a connecting part, and a drainage part. The drainage blind ditch 1 is located between the rock face 2 and the shaft lining 3, and is used to collect seepage water from the rock face. The connecting part includes a tee connector 4, a pre-embedded drainage pipe 5, and a filling material 6. The pre-embedded drainage pipe 5 extends along the thickness direction of the shaft lining 3 and penetrates the shaft lining 3. The tee connector 4 connects the drainage blind ditch 1 and the pre-embedded drainage pipe 5. The filling material 6 is located on the side of the pre-embedded drainage pipe 5 away from the tee connector 4. The filling material 6 and the pre-embedded drainage pipe 5 are detachably connected, and the ends of both the pre-embedded drainage pipe 5 and the filling material 6 do not exceed the inner wall surface of the shaft lining 3. The drainage part is configured to connect to the pre-embedded drainage pipe 5 after the filling material 6 is removed, and is used to discharge seepage water.

[0026] Specifically, the tee connector 4 is arranged between the drainage blind ditch 1 and the pre-embedded drainage pipe 5 to guide the seepage water collected by the drainage blind ditch 1 into the pre-embedded drainage pipe 5. The pre-embedded drainage pipe 5 is arranged within the main structure of the shaft lining 3 and is pre-embedded during the slipform construction. Its two ends can be flush with the shaft lining 3. During the slipform construction, the filling material 6 is poured into the main structure of the shaft along with the pre-embedded drainage pipe 5. After pouring, it can be manually removed and the drainage part installed.

[0027] In this embodiment, the drainage pipe structure for slipform construction features a detachable filler material 6 at the outlet end of the pre-embedded drainage pipe 5. Both the ends of the pre-embedded drainage pipe 5 and the filler material 6 do not exceed the inner wall surface of the shaft lining 3, thus ensuring the smooth operation of the slipform construction. The detachable filler material 6 can be removed after construction, reserving installation space for the drainage system. This allows for the safe discharge of seepage water from the mountain after construction, effectively improving the reliability of the shaft seepage drainage system and saving on project costs.

[0028] like Figures 1-3 As shown, in one specific embodiment, there are multiple drainage blind ditches 1 and connecting parts. These multiple drainage blind ditches 1 and connecting parts are arranged at intervals along the axial direction of the shaft lining 3. The number and position of the drainage blind ditches 1 and connecting parts can be preset according to actual conditions, and this document does not impose specific limitations on them. The drainage part includes a vertical drainage pipe 7 and multiple connecting drainage pipes 8. The vertical drainage pipe 7 extends along the axial direction of the shaft lining 3. One end of the connecting drainage pipe 8 is connected to a pre-embedded drainage pipe 5, and the other end is connected to the vertical drainage pipe 7.

[0029] like Figure 2As shown, in one specific embodiment, the drainage blind ditch 1 has dimensions of 70 x 30 mm, the pre-embedded drainage pipe 5 has a dimension of DN65, the connecting drainage pipe 8 has a dimension of DN80, and the vertical drainage pipe 7 has a dimension of DN100. Additionally, the filling material 6 is wrapped around the outer wall of the pre-embedded drainage pipe 5. The filling material 6 is poured into the vertical shaft lining 3 during construction along with the pre-embedded drainage pipe 5. After pouring, it is removed to form an installation cavity for the drainage section. The connecting drainage pipe 8 is installed in the installation cavity after the filling material 6 is removed, and can be connected to the pre-embedded drainage pipe 5 using an insertion method to ultimately drain rock seepage. Furthermore, the filling material 6 is a monolithically formed material such as hemp rope to facilitate manual removal later. In addition, to facilitate the installation of the connecting drainage pipe 8, the thickness of the filling material 6 wrapped around the pre-embedded drainage pipe 5 is not less than 30 mm, and the wrapping length is not less than 100 mm. Figure 2 The sum of d1 (thickness of the filling material 6 and diameter of the pre-embedded drainage pipe 5) is approximately 150 mm or more, and the length of d2 (wrap length of the filling material 6 on the pre-embedded drainage pipe 5) is approximately 100 mm or more.

[0030] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A drainage pipe structure for synovial membrane construction, characterized in that, include: A drainage blind ditch is provided between the rock face and the shaft lining, and the drainage blind ditch is used to collect seepage water from the rock mass. The connecting part includes a tee connector, a pre-embedded drainage pipe, and a filling material. The pre-embedded drainage pipe extends along the thickness direction of the shaft lining and penetrates the shaft lining. The tee connector connects the drainage blind ditch and the pre-embedded drainage pipe. The filling material is disposed on the side of the pre-embedded drainage pipe away from the tee connector. The filling material is detachably connected to the pre-embedded drainage pipe, and the ends of both the pre-embedded drainage pipe and the filling material do not exceed the inner wall surface of the shaft lining. A drainage section is configured to connect to the pre-embedded drainage pipe after the filling material is removed, and the drainage section is used to discharge leaked water.

2. The drainage pipe structure for synovial membrane construction according to claim 1, characterized in that, The number of drainage blind ditches and the connecting parts is multiple, and the multiple drainage blind ditches and the connecting parts are arranged at intervals along the axial direction of the shaft lining; the drainage part includes a vertical drainage pipe and multiple connecting drainage pipes, the vertical drainage pipe extends along the axial direction of the shaft lining, one end of the connecting drainage pipe is connected to the pre-embedded drainage pipe, and the other end is connected to the vertical drainage pipe.

3. The drainage pipe structure for synovial membrane construction according to claim 2, characterized in that, The dimensions of the drainage blind ditch are 70X30mm, the dimensions of the pre-buried drainage pipe are DN65, the dimensions of the connecting drainage pipe are DN80, and the dimensions of the vertical drainage pipe are DN100.

4. The drainage pipe structure for slipform construction according to any one of claims 1-3, characterized in that, The filling material is wrapped around the outer wall of the pre-embedded drainage pipe. The filling material is poured into the lining of the shaft along with the pre-embedded drainage pipe during construction. After pouring, the filling material is removed to form an installation cavity for installing the drainage part.

5. The drainage pipe structure for synovial membrane construction according to claim 4, characterized in that, The filling material is hemp rope, and the thickness of the filling material wrapped around the pre-embedded drainage pipe is not less than 30mm, and the wrapping length is not less than 100mm.

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