Karst landform area double-hole highway tunnel counter-slope water pumping and sewage disposal diversion system
By designing a reverse slope pumping and sewage diversion system for the Shuangdong Highway Tunnel in the Karst landform area, the safety threats caused by the convergence of surrounding rocks and the increase in sewage treatment volume are solved, and efficient sewage diversion and a safe construction environment are achieved.
Patent Information
- Application Number
- CN202421600212.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-07-08
AI Technical Summary
During the reverse slope excavation of highway tunnels in karst landform areas, water in the surrounding rocks gathers along the longitudinal slope of the tunnel towards the palm surface, resulting in excessive water accumulation near the palm surface, threatening the safety of construction workers and equipment, softening the surrounding rocks, decreasing the intensity, and mixing clean water with sewage, increasing the total amount of sewage treatment.
A reverse slope pumping and sewage diversion system for the double-hole highway tunnel in the karst landform area is designed. By setting up sewage collection puddles inside the main left and main right holes, and installing multi-stage water pumps and drainage pipes, the grading and efficient drainage of sewage is achieved. The drainage pipes are connected to the water holes outside the hole and drained to the outside of the hole.
It effectively reduces the total amount of sewage treatment in tunnel construction, reduces the construction cost and operating space requirements, minimizes the cost of pumping and drainage, and ensures construction safety, avoiding the threat of water accumulation to personnel and machinery due to reverse slope return.
Smart Images
Figure CN222686735U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tunnel reverse slope drainage, in particular to a reverse slope water pumping, cleaning and sewage diversion system for a double-hole highway tunnel in a karst landform area. Background Art
[0002] Karst landform is a landform formed by the dissolution and precipitation of soluble rocks by groundwater and surface water, as well as gravity collapse, collapse, and accumulation. In the field of highway construction in karst landform areas, when long tunnels are excavated in the reverse slope direction, that is, excavated in the direction of the tunnel longitudinal slope, the surrounding rock water will gather along the tunnel longitudinal slope to the heading face.
[0003] For example, 1. Direct threats to the safety of construction workers and equipment due to excessive water accumulation near the face;
[0004] 2. Indirect safety threats caused by the softening and strength reduction of the surrounding rock of the tunnel face due to long-term water immersion;
[0005] 3. The clean water gushing out of the surrounding rock in the section where the secondary lining waterproof layer has been applied will gather at the heading and mix with the clean water produced in the working section, resulting in a significant increase in the total amount of sewage treatment and other unfavorable factors. Summary of the invention
[0006] In view of the deficiencies in the prior art, the utility model provides a reverse slope pumping, cleaning and sewage diversion system for a double-hole highway tunnel in a karst landform area, which solves the direct threat to the safety of construction workers and equipment caused by excessive water accumulation near the face, the indirect safety threat caused by the softening and strength reduction of the surrounding rock of the face due to long-term soaking in water, and the problem that the clean water gushing out of the surrounding rock will be collected at the face and mixed with the clean water generated in the working section, resulting in a significant increase in the total amount of sewage treatment.
[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a reverse slope pumping, cleaning and diversion system for a double-hole highway tunnel in a karst landform area, comprising a main left hole and a main right hole, wherein the main left hole and the main right hole are both provided with a heading face, a sewage collection pit is opened below the main left hole and the main right hole, a first water pump is fixedly installed inside the sewage collection pit, a second water pump is fixedly installed on the opposite side of the main left hole and the main right hole, the first water pump is connected to the second water pump through a pipeline, the second water pump located in front is connected to the sewage collection pit at the rear through a pipeline, a third water pump is fixedly installed on the opposite side of the main left hole and the main right hole and on one side of the second water pump, the second water pump is connected to the third water pump through a pipeline, the two third water pumps are connected through a pipeline, an outside water pit is provided on one side of the main right hole, a water outlet end of the third water pump is connected to a drainage pipe, and one end of the drainage pipe extends to the inside of the outside water pit.
[0008] Preferably, the bottom of the main left tunnel inner cavity and the top of the main right tunnel inner cavity are respectively provided with a first central drainage ditch and a second central drainage ditch, one end of the first central drainage ditch and one end of the second central drainage ditch are connected to a main drainage ditch, and one end of the main drainage ditch extends to the inside of the puddle outside the tunnel.
[0009] Preferably, a plurality of transverse partitions are provided inside the first central drainage ditch and inside the second central drainage ditch.
[0010] Preferably, positive and negative slope dividing lines are provided inside the main left hole and the main right hole.
[0011] Preferably, sedimentation tanks compatible with the second water pump and the third water pump are provided inside the main left hole and the main right hole.
[0012] Preferably, an inverted arch is provided at the bottom of the inner cavity of the main left hole and the main right hole, and a secondary lining is provided on the inner surface of the main left hole and the main right hole.
[0013] The utility model provides a reverse slope pumping, cleaning and sewage diversion system for a double-hole highway tunnel in a karst landform area. Compared with the existing technology, it has the following beneficial effects:
[0014] (1) After the reverse slope pumping system is used to separate clean and dirty water, the total amount of sewage treatment in tunnel construction is greatly reduced from the source; in addition to the necessary pumping equipment and pipelines, the utility model makes full use of various existing structures of the original design of the double-hole double-line extra-long tunnel without inclined shafts, and at the same time fully controls the sequence of the leveling layer invert arch filling concrete and other processes, saving working space and engineering costs.
[0015] (2) The utility model realizes hierarchical and efficient drainage of clean and dirty water by scientifically selecting drainage equipment and laying out drainage lines, eliminating the safety threat to personnel and machinery caused by water accumulation due to backflow on the tunnel face, and minimizing the drainage cost of extra-long highway tunnels in karst landform areas without affecting the overall construction efficiency of the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 It is a left view of the main left hole structure of the utility model;
[0018] Figure 3 It is a left view of the main right hole structure of the utility model.
[0019] In the figure: 1. Main left tunnel; 2. Main right tunnel; 3. Heading face; 4. Sewage collection pit; 5. First water pump; 6. Second water pump; 7. Third water pump; 8. Pit outside the tunnel; 9. Drain pipe; 10. First central drainage ditch; 11. Second central drainage ditch; 12. Main drainage ditch; 13. Diaphragm; 14. Boundary line between positive and negative slopes; 15. Sedimentation tank; 16. Invert; 17. Secondary lining. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0021] See also Figure 1-3 The utility model provides a technical solution: a reverse slope pumping, cleaning and sewage diversion system for a double-hole highway tunnel in a karst landform area, comprising a main left tunnel 1 and a main right tunnel 2, wherein a heading face 3 is arranged inside the main left tunnel 1 and the main right tunnel 2, a sewage collection pit 4 is opened below the main left tunnel 1 and the main right tunnel 2, a first water pump 5 is fixedly installed inside the sewage collection pit 4, a second water pump 6 is fixedly installed on the opposite side of the main left tunnel 1 and the main right tunnel 2, the first water pump 5 is connected to the second water pump 6 by a pipeline, and the second water pump 6 at the front and the sewage collection pit 4 at the rear are connected to each other. The water collection pits 4 are connected by pipes, and the third water pump 7 is fixedly installed on the opposite side of the main left hole 1 and the main right hole 2 and on the side of the second water pump 6. The second water pump 6 and the third water pump 7 are connected by pipes, and the two third water pumps 7 are connected by pipes. An outside-hole water pit 8 is set on one side of the main right hole 2, and the water outlet end of the third water pump 7 is connected to a drain pipe 9, one end of the drain pipe 9 extends to the inside of the outside-hole water pit 8, and the first water pump 5, the second water pump 6 and the third water pump 7 are all electrically connected to the battery and controlled by a control switch.
[0022] Furthermore, a first central drainage ditch 10 and a second central drainage ditch 11 are respectively provided at the bottom of the inner cavity of the main left tunnel 1 and the top of the inner cavity of the main right tunnel 2. One end of the first central drainage ditch 10 and one end of the second central drainage ditch 11 are connected with a main drainage ditch 12. One end of the main drainage ditch 12 extends to the inside of the puddle 8 outside the tunnel. A plurality of transverse partitions 13 are provided inside the first central drainage ditch 10 and the second central drainage ditch 11.
[0023] Furthermore, a positive slope dividing line 14 is provided inside the main left tunnel 1 and the main right tunnel 2 .
[0024] Furthermore, a sedimentation tank 15 compatible with the second water pump 6 and the third water pump 7 is opened inside the main left tunnel 1 and the main right tunnel 2, an invert arch 16 is opened at the bottom of the inner cavity of the main left tunnel 1 and the main right tunnel 2, and a secondary lining 17 is provided on the inner surface of the main left tunnel 1 and the main right tunnel 2.
[0025] When in use, the sewage in the sewage collection pit 4 in the front is pumped to the second water pump 6 through the first water pump 5 in the front, and the sewage in the sewage collection pit 4 in the rear is pumped to the front to drive the second water pump 6 through the first water pump 5, and then the second water pump 6 in the front pumps the sewage to the third water pump 7, the second water pump 6 in the rear pumps the sewage to the third water pump 7 on the right, the third water pump 7 in the rear pumps the sewage to the third water pump 7 in the front, and the third water pump 7 in the front will discharge the sewage through the drain pipe 9 to the puddle 8 outside the cave;
[0026] The clean water at the positive and negative slope dividing line 14 flows into the sedimentation tank 15 at the rear through the first central drainage ditch 10 and the second central drainage ditch 11, and the water is pumped out by the second water pump 6 and the third water pump 7 at the rear, and discharged into the puddle 8 outside the cave through the main drainage ditch 12.
[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, material or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, material or apparatus.
[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A reverse slope pumping and sewage diversion system for a double-hole highway tunnel in a karst landform area, comprising a main left tunnel (1) and a main right tunnel (2), characterized in that: The main left tunnel (1) and the main right tunnel (2) are both provided with a tunnel face (3), and a sewage sump (4) is provided at the bottom of the main left tunnel (1) and the main right tunnel (2). A first water pump (5) is fixedly installed in the sewage sump (4), and a second water pump (6) is fixedly installed on the opposite sides of the main left tunnel (1) and the main right tunnel (2). The first water pump (5) and the second water pump (6) are connected by a pipeline, and the second water pump (6) located in the front is connected to the sewage sump (4) at the rear. The main left hole (1) and the main right hole (2) are connected by a pipeline. A third water pump (7) is fixedly installed on the opposite side of the inside of the main left hole (1) and the main right hole (2) and on the side of the second water pump (6). The second water pump (6) and the third water pump (7) are connected by a pipeline. The two third water pumps (7) are connected by a pipeline. An external water puddle (8) is provided on one side of the main right hole (2). The water outlet of the third water pump (7) is connected to a drainage pipe (9). One end of the drainage pipe (9) extends to the inside of the external water puddle (8).
2. The reverse slope pumping, cleaning and sewage diversion system for a double-hole highway tunnel in a karst landform area according to claim 1 is characterized by: A first central drainage ditch (10) and a second central drainage ditch (11) are respectively provided at the bottom of the inner cavity of the main left hole (1) and the top of the inner cavity of the main right hole (2); one end of the first central drainage ditch (10) and one end of the second central drainage ditch (11) are connected to a main drainage ditch (12); one end of the main drainage ditch (12) extends to the inside of a puddle (8) outside the hole.
3. The reverse slope pumping, cleaning and sewage diversion system for a double-hole highway tunnel in a karst landform area according to claim 2 is characterized by: A plurality of transverse partitions (13) are arranged inside the first central drainage ditch (10) and inside the second central drainage ditch (11).
4. The reverse slope pumping, cleaning and sewage diversion system for a double-hole highway tunnel in a karst landform area according to claim 1 is characterized by: A positive and negative slope dividing line (14) is provided inside the main left hole (1) and the main right hole (2).
5. The reverse slope pumping, cleaning and sewage diversion system for a double-hole highway tunnel in a karst landform area according to claim 1 is characterized by: Sedimentation tanks (15) adapted to the second water pump (6) and the third water pump (7) are provided inside the main left hole (1) and the main right hole (2).
6. The reverse slope pumping, cleaning and sewage diversion system for a double-hole highway tunnel in a karst landform area according to claim 1 is characterized by: An inverted arch (16) is provided at the bottom of the inner cavity of the main left hole (1) and the main right hole (2), and a secondary lining (17) is provided on the inner surface of the main left hole (1) and the main right hole (2).