Integrated construction operation and maintenance system for high arch dam resistant body and atomization area slope

Abstract

The utility model discloses an integrated construction operation and maintenance system, especially an integrated construction operation and maintenance system for high arch dam resistance body and atomization area side slope belongs to the technical field of water conservancy and hydropower engineering structure design and construction. Provide an integrated construction operation and maintenance system for high arch dam resistance body and atomization area side slope which is relatively lower in construction cost, is convenient for construction during construction period and subsequent operation and maintenance. The integrated construction operation and maintenance system includes the resistance body formed by high arch dam and both sides of dam abutment rock mass, and construction branch hole is arranged in the resistance body of each side dam abutment rock mass respectively, and the integrated construction operation and maintenance system further includes traffic tunnel and resistance body drainage hole system, and the same section as the construction branch hole is adopted to the traffic tunnel and resistance body drainage hole system, and the traffic tunnel and resistance body drainage hole system are communicated with the construction branch hole.

Description

Technical Field

[0001] This utility model relates to an integrated construction and operation system, and more particularly to an integrated construction and operation system for the resistive body and atomized zone slope of a high arch dam, belonging to the field of design and construction technology of water conservancy and hydropower engineering structures. Background Technology

[0002] 1. Explanation of technical terms 1) Arch dam An arch dam is a water-retaining structure that convexes upstream in plan, using the arch to transfer some of the water pressure to the mountains on both sides of the valley. Compared to gravity dams, the stability of an arch dam does not rely entirely on its own weight under water pressure; it is mainly supported by the reaction force of the bedrock on both sides of the valley.

[0003] 2) Resistance body As mentioned earlier, arch dams transfer most of the upstream water load to the mountains on both sides of the valley through the arch action. The stability is mainly maintained by the rock mass on both sides of the dam abutment. The rock mass on both sides of the dam abutment that provides the reaction force to the arch ends of the arch dam is called the resistance body.

[0004] 3) Flood discharge atomization Flood discharge atomization mainly refers to the physical phenomenon of rain and mist formed when floodgates are opened to discharge floodwater, including the formation of rain and mist through the spray, splashing of water on the surface, and collision of water jets in the air. Rainfall from flood discharge atomization, infiltrating through the ground surface, may reduce the physical and mechanical properties of the soil and rock mass, increase the seepage pressure on the internal structural surfaces of mountains, and thus adversely affect the stability of the rock mass and slopes.

[0005] 2. Drainage structure of high arch dam resisting body and its construction and operation and maintenance access High arch dams have high requirements for the topography and geological conditions of the resisting bodies on both banks. They usually need to set up curtain grouting tunnels, dam foundation drainage tunnels, and resisting body drainage tunnels (including transverse and longitudinal resisting body drainage tunnels) within the resisting bodies to reduce the seepage pressure of geological structural surfaces (faults, dikes, fissures, etc.) within the resisting bodies and thus ensure the stability of the rock mass within the resisting bodies.

[0006] To implement the numerous caverns within the underground mountain bodies of the two banks' resistance structures, the conventional construction and operation and maintenance access layout scheme involves setting up construction adits to connect existing traffic tunnels on both banks and drainage tunnels along the river to the resistance structures. Then, these drainage tunnels along the river are connected to various transverse drainage tunnels, and finally, connecting tunnel sections are used to connect the dam foundation drainage tunnels and the curtain grouting tunnels.

[0007] 3. Slope protection structure of the flood discharge atomization zone of the high arch dam and its construction and operation and maintenance access. For high arch dam projects that use openings in the dam body for flood discharge, in order to avoid the impact of rainwater infiltration from the flood discharge atomization on the stability of the resisting bodies and slopes on both banks, it is usually necessary to adopt slope closure (slope-mounted concrete or shotcrete with wire mesh), slope system drainage, and shallow prestressed anchor cables and other anchoring measures for the resisting bodies and slopes within the range affected by the flood discharge atomization.

[0008] In addition, the slopes of the flood discharge atomization zone of the high arch dam are mostly valley-ridge terrain, with deep cuts and abundant solid material sources in the gullies. In order to avoid the dangerous rocks in and on both sides of the gullies from affecting the lower water cushion pond, the secondary dam, construction personnel and equipment safety, in addition to cleaning and anchoring the dangerous rocks in the gullies, it is also necessary to set up retaining walls along the gullies for blocking.

[0009] To implement measures such as slope surface cleaning, slope closure (slope-mounted concrete or shotcrete with wire mesh), slope system drainage, and shallow and prestressed anchor cable anchoring in the flood discharge atomization zone of the high arch dam, the conventional construction and operation and maintenance access layout plan is to set up a 23-level wide horse path (accessible to vehicles and construction equipment) in the gentler terrain areas according to the terrain conditions of the atomization zone, and connect the low-line road to the wide horse path in the flood discharge atomization zone by setting up a zigzag construction road downstream; the rock-stopping wall in the gully of the atomization zone is usually set up in the gentler terrain areas of the gully of the atomization zone. To implement the rock-stopping wall, the conventional construction and operation and maintenance access layout plan is to set up a zigzag construction road to connect the wide horse path in the flood discharge atomization zone to the working face of the rock-stopping wall.

[0010] 4. Problems with conventional layout schemes for the construction and operation and maintenance channels of the high arch dam's resistance body and the slope of the flood discharge atomization zone. The following are the problems with the conventional layout scheme for the construction and operation and maintenance access of the resistance body and slope of the atomization zone of high arch dams: 1) The overall layout lacks systematicness and coordination. The construction and maintenance access for the resistance structure and the slope construction and maintenance access for the flood discharge atomization zone are independent of each other, and the overall layout lacks systematicness and coordination. The outlet of the drainage tunnel to the Yokogawa Resistant Body and the wide ramp of the flood discharge atomization area are not effectively connected in terms of elevation, which is not conducive to the drainage of seepage from the Resistant Body during construction and operation. The rock-blocking wall in the gully of the atomization zone and the wide ramp in the flood discharge atomization zone are not effectively connected in terms of elevation, which is not conducive to the construction of the rock-blocking wall and the removal of slag during the operation period.

[0011] 2) Not conducive to construction For the construction of the resistance body, the cross-section of the construction adit is large enough to meet the requirements of construction machinery and vehicles to pass through, while the cross-section of the drainage tunnel of the resistance body along the river is small and not conducive to the requirements of construction machinery and vehicles to pass through. Therefore, the drainage tunnel of the resistance body across the river, the drainage tunnel of the dam foundation, the curtain grouting tunnel, etc. cannot adopt large-scale mechanized construction methods, which makes the construction more difficult and the construction period longer. For the slopes of the flood discharge atomization zone: the formation of the wide ramp in the flood discharge atomization zone depends on the downstream zigzag construction road, which is quite difficult to arrange; the construction of the retaining wall in the gully of the atomization zone also depends on the zigzag construction road near the gully of the atomization zone, which is also quite difficult to arrange.

[0012] 3) Inconvenient for operation and maintenance For the resisting body, maintenance vehicles can only reach the end of the construction adit. The drainage tunnels of the resisting body along the river, the drainage tunnels of the resisting body across the river, the drainage tunnels of the dam foundation, and the curtain grouting tunnels can only be reached on foot, making operation and maintenance quite difficult. For the slopes of the flood discharge atomization zone: Due to the impact of flood discharge atomization, the stability of the downstream zigzag construction road is difficult to guarantee, which is not conducive to the operation and maintenance of the slopes of the flood discharge atomization zone; the retaining wall in the gully of the atomization zone and the wide road in the flood discharge atomization zone are not effectively connected in terms of elevation, and can only be connected by the zigzag construction road near the gully of the atomization zone, which is not conducive to the cleaning of stone debris and the transportation of slag in the retaining wall during operation.

[0013] 4) It is not conducive to safety control The downstream zigzag construction road and the zigzag construction road in the gully of the atomization area are both located at high altitudes near the edge, posing significant safety risks and making safety control difficult.

[0014] 5) It is detrimental to environmental protection The downstream zigzag construction road needs to be excavated on the downstream natural bank slope, which will cause serious damage to the natural bank slope vegetation and disturbance to the slope surface rock and soil, which is not conducive to environmental protection.

[0015] 6) It is not conducive to investment control The construction of the high arch dam's resistance body and the slope construction of the atomization zone require separate construction access routes. The failure to combine them in the layout is not conducive to project investment control. Utility Model Content

[0016] The technical problem to be solved by this utility model is to provide an integrated construction and operation system for the resistance body and atomized zone slope of high arch dams, which has relatively low construction cost and is convenient for construction during the construction period and subsequent operation and maintenance.

[0017] The technical solution adopted to solve the above-mentioned technical problems is: an integrated construction and operation system for the resisting body and atomized zone slope of a high arch dam, including the high arch dam and the resisting body composed of the rock mass of the dam abutments on both sides. Construction adits are set in the resisting body composed of the rock mass of the dam abutments on each side. The integrated construction and operation system also includes a traffic tunnel and a drainage tunnel system for the resisting body. The traffic tunnel and the drainage tunnel system for the resisting body adopt the same cross-section as the construction adits and are connected to the construction adits.

[0018] Furthermore, the integrated construction and operation system also includes a drainage tunnel connection section. The resistance body drainage tunnel system includes at least a river-direction resistance body drainage tunnel and a river-crossing resistance body drainage tunnel. The drainage tunnel connection section also adopts the same cross-section as the construction adit. The river-direction resistance body drainage tunnel and the river-crossing resistance body drainage tunnel are interconnected through the drainage tunnel connection section, and the construction adit is connected to the river-direction resistance body drainage tunnel.

[0019] The preferred embodiment of the above scheme is that the integrated construction and operation system further includes a dam foundation drainage tunnel, a curtain grouting tunnel, and a connecting tunnel. The cross-sections of the dam foundation drainage tunnel, the curtain grouting tunnel, and the connecting tunnel are all the same as the cross-sections of the construction adit. The dam foundation drainage tunnel, the curtain grouting tunnel, and the corresponding resistance body drainage tunnel are connected through the connecting tunnel.

[0020] Furthermore, the dam foundation drainage tunnel and the curtain grouting tunnel are connected to the drainage tunnel of the river-direction resisting body through a connecting tunnel.

[0021] The preferred embodiment of the above scheme is that a flood discharge atomization zone walkway is set on the surface of each side of the resisting body. The elevation of the flood discharge atomization zone walkway is adapted to the elevation of the drainage tunnel of the transverse resisting body at the corresponding location. The flood discharge atomization zone walkway and the transverse resisting body drainage tunnel have the same cross section. The flood discharge atomization zone walkway and the transverse resisting body drainage tunnel are connected by a drainage tunnel connection section.

[0022] Furthermore, there are two to three flood discharge atomization zones set on the surface of each side of the resisting body. Each flood discharge atomization zone is connected to the drainage tunnel of the transverse resisting body at the same elevation through a drainage tunnel connection section.

[0023] The preferred method of the above scheme is that the width of the road surface of each flood discharge atomization zone meets the requirements for the passage of construction machinery and vehicles, and the road surface of each flood discharge atomization zone road surface is inclined outward along the width direction according to the slope required for drainage.

[0024] Furthermore, the integrated construction and operation system also includes rock-blocking walls and gullies. At least one rock-blocking wall is sequentially set in each gully in the atomization zone on the dam abutment rock mass along the extension direction of the gully. The elevation of each rock-blocking wall is adapted to the elevation of the ramp in the flood discharge atomization zone at the corresponding location.

[0025] The preferred method of the above scheme is to arrange erosion protection structures on the surface of the atomized zone of the rock mass on the dam shoulder.

[0026] Furthermore, the erosion protection structure includes slope-attached concrete or shotcrete with wire mesh, slope drainage system, and shallow prestressed anchor cables.

[0027] The beneficial effects of this utility model are as follows: The technical solution provided in this application sets the cross-sections of the traffic tunnel, the drainage tunnel system of the resisting body, and the ramp in the flood discharge atomization area to be the same as the cross-section of the construction adit. This allows for better connection and communication between the traffic tunnel, the drainage tunnel system of the resisting body, the construction adit, and the ramp in the flood discharge atomization area. This solves the problems of discontinuous construction, inconvenient passage, and the need for various specifications of operation and maintenance equipment in the prior art, where different types of tunnels are set with different cross-sectional structures as needed. Using the integrated construction and operation and maintenance system of this application, since all tunnels and roads arranged inside and on the surface of the resisting body formed by the dam abutment rock mass adopt the same cross-sectional structure, it is possible to achieve integrated design, construction, and subsequent operation and maintenance using as few specifications of operation and maintenance equipment as possible. This achieves the goals of convenient construction, significantly reduced construction costs, improved construction and operation and maintenance efficiency, and convenient subsequent operation and maintenance. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the surface layout structure of the integrated construction and operation system for the resistive body and atomized zone slope of the high arch dam according to this utility model. Figure 2 This is a schematic diagram of the underground layout structure of the integrated construction and operation system for the resistive body and atomized zone slope of the high arch dam.

[0029] The following are marked on the diagram: 1. Construction adit; 2. Drainage tunnel connection section; 3. Drainage tunnel of the resistance body along the river; 4. Drainage tunnel of the resistance body across the river; 5. Drainage tunnel of the dam foundation; 6. Curtain grouting tunnel; 7. Connecting tunnel; 8. Flood discharge atomization zone walkway; 9. Rock retaining wall; 10. High arch dam. Detailed Implementation

[0030] like Figure 1 , Figure 2This invention provides an integrated construction and operation system for the resistive body and atomized zone slope of a high arch dam, offering relatively low construction costs and facilitating construction during the construction period and subsequent operation and maintenance. The integrated system comprises the high arch dam 10 and the resistive body composed of the rock masses on both banks' abutments. Each resistive body on each bank's abutment contains a construction adit 1. The system also includes a traffic tunnel and a drainage tunnel system for the resistive body. Both the traffic tunnel and the drainage tunnel system have the same cross-section as the construction adit 1 and are connected to it. The technical solution provided in this application achieves better connection and communication between the traffic tunnel, the drainage tunnel system, the construction adit, and the ramp in the flood discharge atomized zone by setting the cross-sections of the traffic tunnel, the drainage tunnel system, and the ramp in the flood discharge atomized zone to be the same as the cross-section of the construction adit. This solves the problems of discontinuous construction, inconvenient passage, and the need for various different specifications of operation and maintenance equipment in existing technologies where different types of tunnels are designed with separate cross-sectional structures as needed. The integrated construction and operation system of this application utilizes the same cross-sectional structure for all tunnels and roads within and on the surface of the dam abutment rock mass resisting the structure. This allows for integrated design, construction, and subsequent operation and maintenance using a minimal number of maintenance equipment specifications, facilitating construction, significantly reducing construction costs, and simplifying subsequent operation and maintenance. In accordance with the actual conditions of the project, this application includes an anti-scour slope protection structure on the surface of the atomized zone of the dam abutment rock mass. Specifically, the anti-scour slope protection structure comprises slope-attached concrete or shotcrete with wire mesh, a slope surface drainage system, and shallow prestressed anchor cables.

[0031] Accordingly, considering the actual conditions of the construction site, and to facilitate better construction, the integrated construction and operation system described in this application also includes a drainage tunnel connection section 2. The resistance body drainage tunnel system includes at least a river-direction resistance body drainage tunnel 3 and a river-crossing resistance body drainage tunnel 4. The drainage tunnel connection section 2 also adopts the same cross-section as the construction adit 1. The river-direction resistance body drainage tunnel 3 and the river-crossing resistance body drainage tunnel 4 are interconnected through the drainage tunnel connection section 2, and the construction adit 1 is connected to the river-direction resistance body drainage tunnel 3. Furthermore, considering the structural characteristics of the integrated construction and operation system, which also includes a dam foundation drainage tunnel 5, a curtain grouting tunnel 6, and a connecting tunnel 7, this application sets the cross-sections of the dam foundation drainage tunnel 5, the curtain grouting tunnel 6, and the connecting tunnel 7 to be the same as the cross-section of the construction adit 1. Then, the dam foundation drainage tunnel 5 and the curtain grouting tunnel 6 are connected to the corresponding resistance body drainage tunnel system through the connecting tunnel 7. More specifically, the dam foundation drainage tunnel 5 and the curtain grouting tunnel 6 are connected to the river-direction resistance body drainage tunnel 3 through the connecting tunnel 7.

[0032] Furthermore, to facilitate the operation of various equipment during the construction and subsequent maintenance phases, this application also provides flood discharge atomization walkways 8 on the surface of each side of the resistive structure. The elevation of the flood discharge atomization walkways 8 corresponds to the elevation of the corresponding transverse river-oriented resistive structure drainage tunnels 4. The flood discharge atomization walkways 8 and the transverse river-oriented resistive structure drainage tunnels 4 have the same cross-section, and are connected to each other via drainage tunnel connection sections 2. Preferably, two to three flood discharge atomization walkways 8 are provided on the surface of each side of the resistive structure, and each flood discharge atomization walkway 8 is connected to the corresponding transverse river-oriented resistive structure drainage tunnel 4 at the same elevation via drainage tunnel connection sections 2. This ensures that the width of each flood discharge atomization walkway 8 meets the requirements for the passage of construction machinery and vehicles, and the surface of each flood discharge atomization walkway 8 is sloped outwards along its width according to the drainage requirements. Meanwhile, in order to avoid the hazards of rolling stones and quicksand, and considering the fact that there are usually gullies in the atomized area of ​​the dam abutment rock mass, the integrated construction and operation system described in this application also includes a rock-blocking wall 9. At least one rock-blocking wall 9 is set sequentially along the extension direction of the gully in each gully in the atomized area of ​​the dam abutment rock mass. The setting elevation of each rock-blocking wall 9 is adapted to the arrangement elevation of the flood discharge atomized area ramp 8 at the corresponding location.

[0033] In summary, the technical solution provided in this application also has the following advantages: 1) The overall layout is more systematic and coordinated. The construction and maintenance access routes for the resistance body and the slope of the atomization zone are combined, resulting in a more systematic and coordinated overall layout. The elevation of the drainage tunnel of the transverse river resisting body and the section connecting the drainage tunnel of the transverse river resisting body are consistent with that of the wide ramp of the flood discharge atomization area. During the construction period, the construction adits, the section connecting the drainage tunnel of the transverse river resisting body and the drainage tunnel of the transverse river resisting body can be used as construction channels for the slope construction of the flood discharge atomization area. During the operation period, the underground seepage water discharged from the drainage tunnel of the transverse river resisting body can be discharged downstream through the wide ramp of the flood discharge atomization area. The overall layout is more systematic and coordinated.

[0034] The rock-blocking walls in the gullies of the atomization zone are set at the corresponding elevation of the wide ramp in the flood discharge atomization zone. During the construction period, the wide ramp in the flood discharge atomization zone can be used as a construction passage for the construction of the rock-blocking dam. During the operation period, the rock debris intercepted by the rock-blocking dam can also be transported out using the wide ramp in the flood discharge atomization zone.

[0035] 2) Facilitates construction For the construction of the resistance body, the cross sections of the drainage tunnels and connecting tunnels of the resistance body along the river are consistent with the construction adits, which can meet the requirements for the passage of construction machinery and vehicles. Therefore, the drainage tunnels of each transverse resistance body, the drainage tunnels of the dam foundation, the curtain grouting tunnels, etc. can all adopt large-scale mechanized construction methods, which greatly reduces the construction difficulty and the construction period is relatively short.

[0036] For the slopes of the flood discharge atomization zone: the formation of the wide ramp in the flood discharge atomization zone mainly relies on the construction channel composed of the combination of the construction adit, the drainage tunnel along the river to the resisting body, and the drainage tunnel across the river to the resisting body, no longer relying on the downstream zigzag construction road, greatly reducing the difficulty of construction layout; the construction of the retaining wall in the gully of the atomization zone mainly relies on the wide ramp in the flood discharge atomization zone, without the need to arrange the zigzag construction road near the gully of the atomization zone, which also greatly reduces the difficulty of construction layout.

[0037] 3) Facilitates operation and maintenance For the resistance body, the operation and maintenance vehicles can directly reach the drainage tunnels of each transverse river resistance body, the dam foundation drainage tunnels, and the curtain grouting tunnels, which greatly reduces the difficulty of operation and maintenance. For the slopes of the flood discharge atomization zone, maintenance vehicles can directly reach the wide roadway and the rock retaining wall of the flood discharge atomization zone through the construction adits, the drainage tunnels of the resisting body along the river and the drainage tunnels of the transverse river. They no longer need to reach the slopes through the downstream zigzag construction roads and the zigzag construction roads near the gullies of the atomization zone, which are greatly affected by the rainfall from the flood discharge atomization. This is more conducive to the operation and maintenance of the slopes of the flood discharge atomization zone, as well as the cleaning and transportation of stone debris within the rock retaining wall.

[0038] 4) Facilitates safety control Construction and operation maintenance of the slopes in the flood discharge atomization zone are no longer accessible via the downstream zigzag construction road. Construction and operation maintenance of the retaining walls in the gullies of the atomization zone are no longer accessible via the zigzag construction road near the gullies of the atomization zone. This effectively avoids the risk of passage at high altitudes near the edge and is more conducive to safety control.

[0039] 5) It is beneficial to environmental protection The construction and operation of the flood discharge atomization zone slope are mainly carried out through the construction adits, the drainage tunnels along the river and the drainage tunnels across the river, and the wide ramps in the flood discharge atomization zone. There is no need to excavate and build new downstream zigzag construction roads on the downstream natural bank slope, which effectively avoids damage to the vegetation on the natural bank slope, reduces disturbance to the surface rock and soil of the natural bank slope, and is more conducive to environmental protection.

[0040] 6) It is conducive to investment control The construction channels for the high arch dam's resistance body and the slope of the atomization zone are combined and arranged, eliminating the need to construct new zigzag construction roads downstream and near the gullies in the atomization zone, which is more conducive to controlling project investment.

[0041] The technical solution of this application will be further described below through specific embodiments: The technical problem to be solved by this application is to provide a method for the construction and operation of high arch dam resistance bodies and atomized zone slopes, which has good systematicity and coordination, is convenient for construction and operation and maintenance, and is conducive to safety control, environmental protection and investment control.

[0042] The technical solution adopted in this application to solve the technical problem is as follows: 1. The construction and operation and maintenance access of the high arch dam resistance body and the slope of the atomization zone are combined and arranged, consisting of underground access and above-ground access.

[0043] 2. The underground passage consists of construction adits, drainage tunnels along the river to the resisting body, and connecting tunnel sections, among which: 1) The construction adit connects the existing traffic tunnels on both banks and the drainage tunnel of the resistive body along the river, and the cross-section meets the requirements for the passage of construction machinery and vehicles; 2) The construction adit connecting the drainage tunnel of the river-direction resisting body, the drainage tunnel of the transverse river-direction resisting body, the joint section of the drainage tunnel of the transverse river-direction resisting body, and the connecting tunnel section shall adopt the same cross-sectional type as the construction adit. 3) The cross-river-oriented resistance body drainage tunnel section connects the river-oriented resistance body drainage tunnel and the flood discharge atomization zone wide roadway, and adopts the same cross-sectional type as the construction adit; 4) The connecting tunnel section connects the drainage tunnel of the river-direction resisting body with the drainage tunnel of the dam foundation and the curtain grouting tunnel, and adopts the same cross-sectional type as the construction adit.

[0044] 3. The above-ground access road is a wide ramp in the flood discharge atomization area, and its design requirements are as follows: 1) The wide walkway in the flood discharge atomization area and the drainage tunnel of the resisting body are set at the same elevation, and their width must meet the requirements for the passage of construction machinery and vehicles; 2) The wide ramp in the flood discharge atomization area needs to be connected to the drainage tunnel of the transverse river resisting body at the same elevation, and the outlet of the combined section of the transverse river resisting body drainage tunnel; 3) The wide ramp in the flood discharge atomization area must meet the requirements of the downstream drainage slope.

[0045] 4. The retaining walls in the gullies of the atomization zone are set at the corresponding elevation of the wide ramp in the flood discharge atomization zone.

Claims

1. An integrated construction and operation system for the resisting body and atomized zone slope of a high arch dam, comprising a high arch dam (10) and the resisting body composed of the rock mass of the dam abutments on both sides, wherein a construction adit (1) is provided in the resisting body composed of the rock mass of the dam abutments on each side, characterized in that: The integrated construction and maintenance system also includes traffic tunnels and a drainage tunnel system for the resisting body. Both the traffic tunnels and the drainage tunnel system for the resisting body adopt the same cross-section as the construction adit (1) and are connected to the construction adit (1).

2. The integrated construction and operation system for the resisting body and atomized zone slope of a high arch dam according to claim 1, characterized in that: The integrated construction and operation system also includes a drainage tunnel connection section (2). The resistance body drainage tunnel system includes at least a river-direction resistance body drainage tunnel (3) and a river-direction resistance body drainage tunnel (4). The drainage tunnel connection section (2) also adopts the same cross-section as the construction branch tunnel (1). The river-direction resistance body drainage tunnel (3) and the river-direction resistance body drainage tunnel (4) are connected to each other through the drainage tunnel connection section (2). The construction branch tunnel (1) is connected to the river-direction resistance body drainage tunnel (3).

3. The integrated construction and operation system for the resisting body and atomized zone slope of a high arch dam according to claim 2, characterized in that: The integrated construction and operation system also includes a dam foundation drainage tunnel (5), a curtain grouting tunnel (6), and a connecting tunnel (7). The cross-sections of the dam foundation drainage tunnel (5), the curtain grouting tunnel (6), and the connecting tunnel (7) are the same as the cross-section of the construction adit (1). The dam foundation drainage tunnel (5), the curtain grouting tunnel (6), and the corresponding resistance body drainage tunnels are connected through the connecting tunnel (7).

4. The integrated construction and operation system for the resisting body and atomized zone slope of a high arch dam according to claim 3, characterized in that: The dam foundation drainage tunnel (5) and the curtain grouting tunnel (6) are connected to the river-direction resistance body drainage tunnel (3) through the connecting tunnel (7).

5. The integrated construction and operation system for the resisting body and atomized zone slope of a high arch dam according to claim 2, 3 or 4, characterized in that: On the surface of each side of the resist body, there are also flood discharge atomization area ramps (8). The arrangement elevation of the flood discharge atomization area ramps (8) is adapted to the arrangement elevation of the corresponding transverse river resist body drainage tunnels (4). The flood discharge atomization area ramps (8) and transverse river resist body drainage tunnels (4) have the same cross section. The flood discharge atomization area ramps (8) and transverse river resist body drainage tunnels (4) are connected by drainage tunnel connecting section (2).

6. The integrated construction and operation system for the resisting body and atomized zone slope of a high arch dam according to claim 5, characterized in that: There are two to three flood discharge atomization area ramps (8) set on the surface of each side of the resistance body. Each flood discharge atomization area ramp (8) is connected to the drainage tunnel (4) of the transverse resistance body at the same elevation through the drainage tunnel connection section (2).

7. The integrated construction and operation system for the resisting body and atomized zone slope of a high arch dam according to claim 6, characterized in that: The width of each flood discharge atomization area walkway (8) meets the requirements for the passage of construction machinery and vehicles. The road surface of each flood discharge atomization area walkway (8) is inclined outward along the width direction according to the slope required for drainage.

8. The integrated construction and operation system for the resisting body and atomized zone slope of a high arch dam according to claim 7, characterized in that: The integrated construction and operation system also includes a rock retaining wall (9) and a gully. At least one rock retaining wall (9) is set sequentially in each gully in the atomization zone on the surface of the dam abutment rock mass along the extension direction of the gully. The setting elevation of each rock retaining wall (9) is adapted to the arrangement elevation of the flood discharge atomization zone ramp (8) at the corresponding location.

9. The integrated construction and operation system for the resisting body and atomized zone slope of a high arch dam according to claim 8, characterized in that: The surface of the atomized zone on the rock mass abutment of the dam is equipped with anti-erosion slope protection structures.

10. The integrated construction and operation system for the resisting body and atomized zone slope of a high arch dam according to claim 9, characterized in that: The erosion protection structure includes slope-attached concrete or shotcrete with wire mesh, slope drainage system, and shallow prestressed anchor cables.

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