Construction method for taking water from upstream face of earth and rockfill dam under reservoir water storage condition

Abstract

The invention discloses an earth and rockfill dam upstream face water taking construction method under the reservoir water storage condition. A water taking device is included, a plurality of water conveying pipes are connected to the water taking device, flange plates are installed at the two ends of each water conveying pipe respectively, and traction devices are erected outside the conveying pipes; a plurality of buttresses are arranged in the water taking device, a plurality of sliding rails are mounted on the buttresses, a sliding table is erected among the sliding rails, and a submersible pump is fixed above the sliding table; a carrying plate is arranged in the sliding table, a plurality of sliding blocks are installed below the carrying plate, a traction hanging frame is fixed between the rear surfaces of the sliding blocks, connecting blocks are installed on the surfaces of the sliding blocks, a rear shovel supporting block is fixed below the connecting blocks, a shovel plate is arranged in front of the rear shovel supporting block, and a plurality of auxiliary pulleys are installed on the rear shovel supporting block. According to the water taking method, construction is simple and effective, under the water storage condition of the earth and rockfill dam, in combination with the water level change condition from the flood season to the dry season, the earth and rockfill dam upstream face water taking project is implemented in stages, and raw water in the middle layer in a reservoir is obtained by a water plant.

Description

Technical Field

[0001] The invention relates to the technical field of water intake for water conservancy or municipal engineering, and in particular to a construction method for water intake on the upstream surface of an earth-rock dam under reservoir water storage conditions. Background Art

[0002] In view of the actual situation, some water plants use earth-rock dam discharge culverts (discharge pipes) to draw water. Since the inlet elevation of the discharge culvert (discharge pipe) is relatively low and affected by reservoir siltation, the water quality is poor and the treatment cost is high.

[0003] However, the existing technology has the following shortcomings: other commonly used new water intake measures, such as building new stratified water intake structures and water transfer tunnels to intake water, or using floating boats to intake water, have high engineering investment and slow construction progress; and the new stratified water intake structures require the reservoir to be emptied as a construction condition, which affects the irrigation, power generation and other tasks undertaken by the reservoir. Summary of the invention

[0004] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and other drawings of the description.

[0005] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a construction method for water intake from the upstream face of an earth-rock dam under reservoir water storage conditions. The purpose is to implement the water intake project from the upstream face of the earth-rock dam in stages under reservoir water storage conditions, combined with the water level changes from the flood season to the dry season, so that the water plant can obtain raw water from the middle layer of the reservoir.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a water intake construction method for the upstream face of an earth-rock dam under reservoir water storage conditions, comprising a water intake device, the water intake device is connected to a plurality of sections of water pipes, flanges are respectively installed at both ends of the plurality of sections of water pipes, and a traction device is arranged outside the water pipes; a plurality of piers are arranged inside the water intake device, a plurality of slide rails are installed on the piers, a slide table is arranged between the slide rails, and a submersible pump is fixed above the slide table; a carrier plate is arranged inside the slide table, a plurality of sliders are installed below the carrier plate, and a traction bracket is fixed between the rear surfaces of the plurality of sliders.

[0007] The present invention is further improved in that a connecting block is installed on the surface of the sliding block, a rear supporting shovel block is fixed below the connecting block, a shovel plate is arranged in front of the rear supporting shovel block, and a plurality of auxiliary pulleys are installed on the rear supporting shovel block.

[0008] The present invention is further improved, the rear support shovel block cooperates with the slide rail, the end of the shovel plate is installed on the connecting block and can be swung and adjusted, the top of the shovel plate is in contact with the surface of the slide rail, the connecting block is fixed to the slider through a connecting rod, the slider is fixed to the carrier plate bolts, the traction bracket cooperates with the traction device, the auxiliary pulley is slidably cooperated with the slide rail, and the carrier plate surface is fixed to the bottom of the submersible pump.

[0009] The present invention is further improved in that a fixing seat is arranged inside the submersible pump, a pump body is installed above the fixing seat, a conduit is arranged on the pump body, and a pump head is connected to the front of the pump body.

[0010] The present invention is further improved in that a pump head covering mesh ring is arranged inside the pump head, a plurality of side water grooves with meshes are opened on the pump head covering mesh ring, a water inlet is arranged in the center of the pump head, a rotating seat is fixed on the outer surface of the water inlet, a rotating shaft frame is erected on the rotating seat, and a plurality of toothed sheets are installed on the rotating shaft frame.

[0011] The present invention is further improved in that the rotating shaft frame is rotatably matched with the rotating seat, the toothed sheet rotates when a vortex is formed by internal suction through the water inlet, the pump head covering mesh ring and the side near water trough can be covered with a filter, the water inlet is matched with the pump body, the pump body is fixed to the fixed seat, the fixed seat is bolted to the surface of the carrier plate, the conduit is connected to the water pipe through the flange, and the water pipe is mounted on the traction device.

[0012] The present invention is further improved in that a carrier is provided in the traction device, a pipe rack is fixed on the carrier, a touch box is provided next to the pipe rack, a hinged swing cover is installed on the outer side of the touch box, a rain cape is installed on the inner side of the touch box, and a cable reel is provided under the rain cape.

[0013] The present invention is further improved, the touch control box is provided with a box cavity, the outer wall of the touch control box is provided with a cover plate installation groove, the box cavity is provided with a drive shaft rotator, and the side wall of the drive shaft rotator is provided with a drive motor.

[0014] The present invention is further improved, the driving motor is used to drive the driving shaft rotator, the driving shaft rotator is connected to the cable drum, the traction rope on the cable drum is respectively connected to the traction hanger and the submersible pump, the pipe rack is used for penetrating and embedding the water pipe, the hinged swing cover is installed in the cover plate mounting groove, and the hinged swing cover is fixed to the touch box bolts.

[0015] A construction method for taking water from the upstream surface of an earth-rock dam under reservoir water storage conditions comprises the following steps:

[0016] S1. In the water intake method, the piers on the earth-rock dam are firstly poured, and at the same time, the slide rails are installed on the piers, and the spacing of the slide rails is controlled to cooperate with the slide table to complete the fixing of the slide table;

[0017] S2. Secondly, fix the platform on the top of the earth-rock dam, and install the pipe rack and touch control box on the platform to form a traction device;

[0018] S3. After the above steps are completed, the submersible pump is fixed on the slide, and one end of the cable drum in the traction device is connected to the submersible pump and the traction bracket respectively;

[0019] S4. After the connection is completed, the flange is fixed on the upper conduit of the submersible pump, and the water pipe is connected according to the length;

[0020] S5. Then, the cable drum traction rope is placed according to the water level of the reservoir, and the length of the slide and the submersible pump is adjusted according to the water level. Finally, the water intake work on the upstream surface of the earth-rock dam is completed under the operation of the submersible pump, and the water flows along the water pipe to the designated location to complete the water intake.

[0021] Beneficial Effects

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The water intake method of the present invention is simple and effective in construction, and can realize the earth-rock dam under water storage conditions, combined with the water level changes from flood season to dry season, by implementing the water intake project on the upstream side of the earth-rock dam in stages, so that the water plant can obtain raw water from the middle layer of the reservoir.

[0024] 2. The present invention connects the connecting block to the front of the sliding block, cooperates with the shovel plate installed in the front and the rear supporting shovel block that fits the sliding rail below to complete the pushing and shoveling of the sliding rail, so that when the sliding table is replaced as a whole, foreign matter such as sand and soil deposited on the sliding rail can be removed, so that the sliding table can move upward on the sliding rail more smoothly and complete the corresponding adjustment in coordination with the water level in the earth-rock dam.

[0025] 3. The present invention installs the pump head covering mesh ring on the pump head, and cooperates with the water suction of the water inlet to drive the toothed pieces on the rotating frame to rotate, thereby cutting off foreign objects such as leaves that enter the reservoir in long strips, thereby preventing the foreign objects from entering the pump body and causing the pump body to be entangled, resulting in abnormal water intake in the catheter. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a construction method for taking water from the upstream surface of an earth-rock dam under reservoir water storage conditions according to the present invention;

[0027] Figure 2 It is a schematic diagram of the three-dimensional structure of a water intake device in a water intake construction method on the upstream surface of an earth-rock dam under reservoir water storage conditions according to the present invention;

[0028] Figure 3 It is a rear view structural schematic diagram of a slide in a construction method for taking water from the upstream surface of an earth-rock dam under reservoir water storage conditions of the present invention;

[0029] Figure 4 It is a partially enlarged structural schematic diagram of a sliding block in a construction method for taking water from the upstream surface of an earth-rock dam under reservoir water storage conditions of the present invention;

[0030] Figure 5 It is a schematic diagram of the three-dimensional structure of a submersible pump in a construction method for taking water from the upstream surface of an earth-rock dam under reservoir water storage conditions according to the present invention;

[0031] Figure 6 It is a schematic diagram of the top view of the structure of a pump head in a construction method for taking water from the upstream surface of an earth-rock dam under reservoir water storage conditions of the present invention;

[0032] Figure 7 It is a schematic diagram of the three-dimensional structure of a traction device in a construction method for taking water from the upstream surface of an earth-rock dam under reservoir water storage conditions according to the present invention;

[0033] Figure 8 It is a schematic diagram of the internal structure of a touch control box in a construction method for taking water from the upstream surface of an earth-rock dam under reservoir water storage conditions of the present invention;

[0034] Fig. 9 It is a cross-sectional schematic diagram of water intake upstream of an earth-rock dam in a construction method for water intake on the upstream face of an earth-rock dam under reservoir water storage conditions of the present invention.

[0035] In the figure: water intake device-1, water pipe-2, flange-3, traction device-4, pier-11, slide rail-12, slide-13, submersible pump-14, carrier-41, pipe rack-42, touch box-43, hinged swing cover-44, rain cover-45, cable drum-46, carrier plate-131, slider-132, traction bracket-133, fixed seat-141, pump body-142, guide tube-14 3. Pump head 144, box cavity 431, cover plate mounting groove 432, drive shaft rotator 433, drive motor 434, connecting block 1321, shovel plate 1322, rear support shovel block 1323, auxiliary pulley 1324, pump head net ring 1441, side near water tank 1442, rotating seat 1443, rotating shaft frame 1444, toothed sheet 1445, water inlet 1446. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but are not used to limit the present invention.

[0037] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through a transition structure, but are connected to form a whole through a connecting structure. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0039] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0040] The present invention is further described below in conjunction with the accompanying drawings:

[0041] Example 1

[0042] As attached Figure 1 To Attachment Figure 4 As shown:

[0043] The present embodiment provides a method for water intake construction on the upstream face of an earth-rock dam under reservoir water storage conditions, comprising a water intake device 1, on which are connected a plurality of sections of water delivery pipes 2, flanges 3 are respectively installed at both ends of the plurality of sections of water delivery pipes 2, and a traction device 4 is mounted outside the delivery pipes 2; a plurality of piers 11 are arranged in the water intake device 1, on which a plurality of slide rails 12 are installed, a slide 13 is mounted between the slide rails 12, and a submersible pump 14 is fixed above the slide 13; a carrier plate 131 is arranged in the slide 13, a plurality of sliders 132 are installed below the carrier plate 131, and a traction bracket 133 is fixed between the rear surfaces of the plurality of sliders 132. Connection blocks 1321 are installed on the surfaces of the sliders 132, a rear support shovel block 1323 is fixed below the connection block 1321, a shovel plate 1322 is arranged in front of the rear support shovel block 1323, and a plurality of auxiliary pulleys 1324 are installed on the rear support shovel block 1323.

[0044] Furthermore, the water delivery pipe 2 can be made of PE pipe, steel pipe or other pipe materials, and its diameter is determined in combination with the water intake scale.

[0045] Furthermore, the flange 3 can be made of stainless steel or plastic, and its specifications and dimensions need to be selected according to the diameter of the water pipe.

[0046] Furthermore, the pier 11 can be a reinforced concrete pier, or a supporting structure such as a steel truss; it is fixed on the upstream slope of the earth-rock dam, and its pier size and arrangement spacing need to be adjusted in combination with the project layout.

[0047] Furthermore, the slide rail 12 can be selected according to its specifications, the water intake scale, and the load of the upper slide 13 and the submersible pump 14 , and the size of the slide rail 12 is manufactured and installed according to the size of the upper submersible pump 14 .

[0048] The specific working principle is as follows:

[0049] The present invention installs the piers 11 in the water intake device 1 on the earth-rock dam and arranges them to the dam top with the required installation spacing, and fixes the traction device 4 on the dam top, and then installs at least two slide rails 12 on the pier 11. After the installation is completed, the submersible pump 14 is fixed above the slide 13, and the submersible pump 14 is installed on the surface of the carrier plate 131. The slider 132 is installed in conjunction with the slide rail 12. The rear support shovel block 1323 fixed below the connecting block 1321 is nested with the slide rail 12, and the auxiliary pulley 1324 is fitted on the side wall of the slide rail 12 for sliding, and the shovel plate 1322 is fitted on the surface of the slide rail 12 to push and shovel foreign matter and silt deposited on the subsequent slide rail 12. Finally, the submersible pump 14 is connected to the water pipe 2 through the flange 3. As the water level of the reservoir changes, the length of its traction device 4 is released, and the traction rope connected to the traction bracket 133 and the submersible pump 14 moves toward the upstream surface of the reservoir along with the slide 13, completing the corresponding water intake work on the upstream surface of the earth-rock dam.

[0050] Embodiment 2:

[0051] As attached Figure 5 To Attachment Figure 6 As shown:

[0052] The submersible pump 14 is provided with a fixed seat 141, a pump body 142 is installed above the fixed seat 141, a guide tube 143 is provided on the pump body 142, and a pump head 144 is connected to the front of the pump body 142. A pump head net ring 1441 is provided in the pump head 144, a plurality of side water grooves 1442 with nets are provided on the pump head net ring 1441, a water inlet 1446 is provided in the middle of the pump head 144, a rotating seat 1443 is fixed on the outer surface of the water inlet 1446, a rotating shaft frame 1444 is erected on the rotating seat 1443, and a plurality of toothed pieces 1445 are installed on the rotating shaft frame 1444.

[0053] Furthermore, the submersible pump 14 needs to be a submersible pump with a frequency conversion regulation function and fixed on the slide rail 13. Its parameters and model need to be determined in combination with the water intake scale and layout elevation of the project.

[0054] The specific working principle is as follows:

[0055] The present invention fixes the pump body 142 and the fixed seat 141, connects the delivery pipe 2 to the conduit 143, and fixes the pump head 144 and the pump head covering mesh ring 1441 to cover its water inlet 1446. When the pump body 142 is opened, the water flow in the reservoir enters from the pump head covering mesh ring 1441 covered with a filter and the side water inlet groove 1442, and the water inlet 1446 forms a water suction vortex, which drives the toothed pieces 1445 on the rotating shaft frame 1444 on the rotating seat 1443 to rotate at a high speed, and then cuts some long foreign objects in the water that enter the pump head covering mesh ring 1441, so as to prevent the long foreign objects from entering the pump body 142 and causing the internal structure to be entangled, resulting in abnormal water intake in the conduit 143.

[0056] Embodiment 3:

[0057] As attached Figure 7 To Attachment Figure 8 As shown:

[0058] The traction device 4 is provided with a platform 41, a pipe rack 42 is fixed on the platform 41, a touch box 43 is provided beside the pipe rack 42, a hinged swing cover 44 is installed on the outside of the touch box 43, a rain cape 45 is installed on the inside of the touch box 43, and a cable drum 46 is provided under the rain cape 45. The touch box 43 is provided with a box cavity 431, a cover plate installation groove 432 is provided on the outer wall of the touch box 43, a drive shaft rotator 433 is installed in the box cavity 431, and a drive motor 434 is installed on the side wall of the drive shaft rotator 433.

[0059] Furthermore, the pulling rope on the cable drum 46 can be a steel wire rope, one end of which is connected to the submersible pump 14 and the traction bracket 133, and the other end is fixed to the cable drum 46 on the dam top.

[0060] The specific working principle is as follows:

[0061] The present invention fixes the carrier 41 on the top of the dam and cooperates with the pipe rack 42 fixed on the surface to install the water pipe 2. When in use, the cover mounting groove 432 of the hinged swing cover 44 is swung down to expose the inner cavity 431 of the box. Then the drive motor 434 is turned on to trigger the drive shaft rotator 433 to drive the cable drum 46 under the raincoat 45 to rotate, thereby realizing the winding and releasing of the traction rope, thereby changing the position of the slide connected to the traction rope and the submersible pump above it on the slide rail to adapt to the reservoir water level regulation in different periods.

[0062] Embodiment 4:

[0063] As attached Figure 1 To Attachment Fig. 9 As shown:

[0064] The specific working steps are as follows:

[0065] S1, in the water intake method, firstly, the buttress 11 on the earth-rock dam is irrigated, and at the same time, the slide rail 12 is installed on the buttress 11, and the spacing of the slide rail 12 is controlled to cooperate with the slide 13 to complete the fixing of the slide 13;

[0066] S2, secondly, fix the platform 41 on the top of the earth-rock dam, and install the pipe rack 42 and the touch box 43 on the platform 41 to form the traction device 4;

[0067] S3, after the above steps are completed, the submersible pump 14 is fixed on the slide 13, and one end of the cable of the cable drum 46 in the traction device 4 is connected to the submersible pump 14 and the traction bracket 133 respectively;

[0068] S4, after the connection is completed, the flange 3 is fixed to the upper conduit 143 of the submersible pump 14, and the water pipe 2 is connected according to the length;

[0069] S5, then the cable drum 46 is placed according to the reservoir water level, and the length of the slide 13 and the submersible pump 133 are adjusted according to the water level, and finally the water intake work on the upstream surface of the earth-rock dam is completed under the operation of the submersible pump 14, and the water flows along the water pipe 2 to the designated position to complete the water intake.

[0070] It should be understood that the embodiments disclosed in the present invention are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features understood by ordinary technicians in the relevant field. It should also be understood that the terms used herein are only used for the purpose of describing specific embodiments and are not meant to be limiting.

[0071] The "embodiment" mentioned in the specification means that the specific features or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present invention. Therefore, the phrases or "embodiment" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0072] In addition, the described features or characteristics may be combined in one or more embodiments in any other suitable manner. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the present invention. However, those skilled in the relevant art will understand that the present invention can be implemented without one or more of the above specific details or can also be implemented using other methods, components, materials, etc.

Claims

1. A construction method for taking water from the upstream surface of an earth-rock dam under reservoir impoundment conditions, characterized in that: It comprises a water intake device (1), the water intake device (1) is connected to a plurality of sections of water delivery pipes (2), both ends of the plurality of sections of water delivery pipes (2) are respectively provided with flanges (3), and a traction device (4) is provided outside the delivery pipes (2); The water intake device (1) is provided with a plurality of piers (11), a plurality of slide rails (12) are installed on the piers (11), a slide platform (13) is arranged between the slide rails (12), and a submersible pump (14) is fixed above the slide platform (13); A carrier plate (131) is arranged inside the slide table (13), a plurality of sliders (132) are installed below the carrier plate (131), and a traction hanger (133) is fixed between the rear surfaces of the plurality of sliders (132).

2. The method for water intake from the upstream surface of an earth-rock dam under reservoir impoundment conditions according to claim 1, characterized in that: The surfaces of the sliders (132) are all installed with connection blocks (1321), a rear support shovel block (1323) is fixed below the connection block (1321), a shovel plate (1322) is arranged in front of the rear support shovel block (1323), and a plurality of auxiliary pulleys (1324) are installed on the rear support shovel block (1323).

3. The method for taking water from the upstream surface of an earth-rock dam under reservoir impoundment conditions according to claim 2, characterized in that: The rear support shovel block (1323) cooperates with the slide rail (12), the end of the shovel plate (1322) is installed on the connecting block (1321) and can be swung and adjusted, the top of the shovel plate (1322) is in contact with the surface of the slide rail (12), the connecting block (1321) is fixed to the slider (132) through a connecting rod, the slider (132) is bolted to the carrier plate (131), the traction bracket (133) cooperates with the traction device (4), the auxiliary pulley (1324) is slidably matched with the slide rail (12), and the surface of the carrier plate (131) is fixed to the bottom of the submersible pump (14).

4. The method for taking water from the upstream surface of an earth-rock dam under reservoir impoundment conditions according to claim 3, characterized in that: A fixing seat (141) is arranged inside the submersible pump (14), a pump body (142) is installed above the fixing seat (141), a guide tube (143) is arranged on the pump body (142), and a pump head (144) is connected to the front of the pump body (142).

5. The method for taking water from the upstream surface of an earth-rock dam under reservoir impoundment conditions according to claim 4, characterized in that: A pump head net ring (1441) is arranged inside the pump head (144), and a plurality of side water grooves (1442) with nets are opened on the pump head net ring (1441). A water inlet (1446) is arranged in the middle of the pump head (144), and a rotating seat (1443) is fixed on the outer surface of the water inlet (1446). A rotating shaft frame (1444) is erected on the rotating seat (1443), and a plurality of toothed sheets (1445) are installed on the rotating shaft frame (1444).

6. The method for taking water from the upstream surface of an earth-rock dam under reservoir impoundment conditions according to claim 5, characterized in that: The rotating shaft frame (1444) is rotatably matched with the rotating seat (1443); the toothed sheet (1445) rotates when a vortex is formed by internal suction through the water inlet (1446); the pump head mesh ring (1441) and the side near water groove (1442) can both be covered with a filter; the water inlet (1446) is matched with the pump body (142); the pump body (142) is fixed with the fixing seat (141); the fixing seat (141) is bolted to the surface of the carrier plate (131); the conduit (143) is connected to the water pipe (2) through the flange (3); and the water pipe (2) is mounted on the traction device (4).

7. The method for taking water from the upstream surface of an earth-rock dam under reservoir impoundment conditions according to claim 6, characterized in that: A carrier (41) is arranged inside the traction device (4), a pipe rack (42) is fixed on the carrier (41), a touch control box (43) is arranged next to the pipe rack (42), a hinged swing cover (44) is installed on the outside of the touch control box (43), a rain cape (45) is installed on the inside of the touch control box (43), and a cable reel (46) is arranged below the rain cape (45).

8. The method for taking water from the upstream surface of an earth-rock dam under reservoir impoundment conditions according to claim 7, characterized in that: The touch control box (43) is provided with a box inner cavity (431), the outer wall of the touch control box (43) is provided with a cover plate installation groove (432), a drive shaft rotator (433) is installed in the box inner cavity (431), and a drive motor (434) is installed on the side wall of the drive shaft rotator (433).

9. A construction method for taking water from the upstream surface of an earth-rock dam under reservoir impoundment conditions according to claim 8, characterized in that: The driving motor (434) is used to drive the drive shaft rotator (433), and the drive shaft rotator (433) is connected to the cable drum (46). The traction rope on the cable drum (46) is respectively connected to the traction bracket (133) and the submersible pump (14). The pipe rack (42) is used to penetrate and embed the water pipe (2). The hinged swing cover (44) is installed in the cover plate installation groove (432), and the hinged swing cover (44) is bolted to the touch box (42).

10. A construction method for taking water from the upstream surface of an earth-rock dam under reservoir impoundment conditions according to claims 1-9, characterized in that: The following steps are involved: S1, in the water intake method, firstly, the buttress (11) on the earth-rock dam is irrigated, and at the same time, the slide rail (12) is installed on the buttress (11), and the spacing of the slide rail (12) is controlled to cooperate with the slide platform (13), so as to complete the fixing of the slide platform (13); S2, secondly, fixing the platform (41) on the top of the earth-rock dam, and installing the pipe rack (42) and the touch control box (43) on the platform (41) to form a traction device (4); S3, after the above steps are completed, the submersible pump (14) is fixed on the slide (13), and one end of the cable of the cable drum (46) in the traction device (4) is connected to the submersible pump (14) and the traction bracket (133) respectively; S4, after the connection is completed, the flange (3) is fixed to the upper guide tube (143) of the submersible pump (14), and the water pipe (2) is connected according to the length; S5, the traction rope of the cable drum (46) is then placed according to the water level of the reservoir, and the length of the slide (13) and the submersible pump (133) are adjusted according to the water level. Finally, the water intake work on the upstream surface of the earth-rock dam is completed under the operation of the submersible pump (14), and the water flow is transported to the designated position along the water delivery pipe (2) to complete the water intake.

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