A deep trench for a water supply station, anchor spraying support for the slope of the deep trench and its construction method

Abstract

The application relates to the technical field of water supply station construction, in particular to a deep trench of a water supply station, slope anchor spray support of the deep trench and a construction method thereof, which comprises a trench main body, a drainage assembly, a filter trench, a sand filtering assembly, an inclined block, a drainage plate and a scraping plate. In the application, accumulated water drives silt into the inside of the filter trench, and stones and other solid substances enter the bottom of the filter trench. After the filter trench is filled with the accumulated water, the accumulated water enters the transition box. At this time, the stones and the solid substances brought by the accumulated water stay at the bottom of the filter trench, so that the stones and the solid substances cannot enter the bottom of the trench main body. Subsequently, the accumulated water flows along the drainage plate to the upper end of the inclined block, and the silt is isolated on one side of the filter screen in the arc-shaped groove of the inclined block. After the motor is started, the sliding support can slide, so that the silt on the sidewall of the filter screen is scraped, thereby facilitating the cleaning of the staff.

Description

Technical Field

[0001] This invention relates to the field of water supply station construction technology, specifically to a deep trench for a water supply station, deep trench slope anchor spraying support and its construction method. Background Technology

[0002] The deep trenches of water supply stations mainly involve two aspects: pipeline connection technology and trench backfilling construction. Their core significance lies in improving the safety, durability, and construction efficiency of the pipeline system. They are mainly used for adjusting water flow patterns and reducing energy to ensure the stable operation of the water supply system. By changing the trench structure, the water flow can gradually transition from high-speed rapid flow to steady flow, preventing turbulence or scouring problems caused by changes in cross-section. They can also consume excess kinetic energy of the water flow by expanding the flow cross-section or adding energy dissipation structures (such as expanding the cross-section or setting up buffer pools), thus avoiding scouring damage to the downstream trench bottom or pipeline caused by high-speed water flow.

[0003] While traditional deep trenches in water supply stations ensure stable operation of the water supply system, during heavy rains, significant amounts of water accumulate on the ground. Deep trenches, typically built at lower elevations, allow water from higher areas to converge, improving the effectiveness of the water station's flood discharge system and preventing excessive water accumulation. However, as large amounts of water flow into the deep trenches, they also carry mud, sand, and stones into the trenches. Over time, this leads to excessive accumulation at the bottom of the trenches, significantly reducing their depth and making cleaning extremely difficult for staff. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a deep trench, deep trench slope anchor spraying support, and its construction method for a water supply station that can prevent accumulated water from carrying large amounts of mud, sand, and rocks into the bottom of the deep trench.

[0005] To address the problems in the prior art, this invention provides a deep trench for a water supply station and a deep trench slope anchor spraying support, including a trench body, a diversion assembly installed on one side of the trench body, a filter trench opened on one side of the diversion channel, a sand filter assembly installed on the side wall of the trench body, a fixed platform fixedly installed on one side of the trench body, and both side walls of the fixed platform can be opened, an inclined block fixedly installed inside the diversion plate, the inclined block having multiple sets of arc-shaped grooves, one end of the diversion plate fixedly connected to the inner wall of the fixed platform, the gap between the diversion plate and the inclined block being 1-1.5cm, a scraper slidably connected to a fixed column, the thickness of the scraper being consistent with the gap between the diversion plate and the inclined block; and the other side of the scraper slidably connected to the fixed column.

[0006] Specifically, the internal components of the diversion assembly include a diversion channel, a bidirectional slope, a filter trench, an isolation plate, a transition box, and a guide box. The diversion channel is fixedly installed on one side of the trench body. A bidirectional slope is fixedly installed between the two sets of diversion channels. An isolation plate is installed inside the filter trench. A transition box is fixedly opened on one side of the filter trench. The transition box is located between the diversion channel and the trench body. The outlet on one side of the transition box is fixedly connected to one end of the guide box. The guide box is fixedly connected to the upper end of the fixed platform.

[0007] Specifically, the internal components of the sand filter assembly include a fixed platform, a motor, a threaded rod, a sliding bracket, a mounting box, a fixing strip, a fixing plate, a fixing column, a scraping plate, an inclined block, a diversion plate, and a fixed platform. The fixed platform is fixedly installed on one side of the trench body, and a set of mounting boxes is fixedly installed inside the fixed platform.

[0008] Specifically, a set of motors is fixedly installed on the side wall of the mounting box. The output shaft of the motor is fixedly connected to one end of a threaded rod, and the other end of the threaded rod is rotatably connected to another inner wall of the mounting box. A set of fixing strips is fixedly installed inside the mounting box.

[0009] Specifically, a set of sliding brackets is threaded onto the threaded rod. The sliding brackets are slidably connected to the fixed strip and are also slidably connected to the sliding groove opened on the side wall of the mounting box. A set of fixed plates is fixedly installed on one side of the mounting box. The fixed plates and the fixed strips are made of moisture-absorbing materials such as gypsum board, bamboo charcoal board, etc. A scraping plate is fixedly connected to one side of the sliding brackets, and the two ends of the fixed column are fixedly connected to the inner wall of the fixed platform.

[0010] On the other hand, the present invention also provides a construction method for deep trenches and deep trench slope anchor spraying support of a water supply station, the method comprising the following steps:

[0011] S1: First, after construction preparation, measurement and layout are carried out. According to the pipe diameter or cross-sectional size, the edge line is measured and laid out according to the specified trench width. Before excavation, lime is used to mark the line for control. The location of the manhole is determined by setting control stakes on both sides of the trench and recording the distance from the two stakes to the center of the manhole.

[0012] S2: Trench excavation, excavating trenches according to requirements.

[0013] Furthermore, the trench excavation specifically includes the following steps:

[0014] S21: Design the measurement control network, including leveling points and axis control lines, mark the center line of trench excavation, determine the trench opening width, and mark the excavation edge line with lime lines. If the soil quality is poor during the excavation process, the trench slope should be increased, and the excavation depth and slope of each step should be strictly controlled.

[0015] S22: Arrange for a dedicated person to check whether the actual operation is carried out according to the planned dimensions and excavation layer by layer from top to bottom. If ground cracks are found during the excavation process, effective support measures will be taken to ensure construction safety.

[0016] S23: During excavation, the location of the soil dumping site shall be selected according to the specific conditions of the construction site. A large low-lying area outside the construction boundary line, where the surrounding environment is not affected or restricted, shall be used as a spoil disposal site.

[0017] The beneficial effects of this invention are:

[0018] 1) In this invention, the accumulated water carries the mud and sand into the interior of the filter trench, and the stones and other solid materials will enter the bottom of the filter trench. After the accumulated water fills the filter trench, it will continue to enter the interior of the transition box. At this time, the stones and solid materials brought by the accumulated water will stay at the bottom of the filter trench, thereby preventing the stones and solid materials from entering the bottom of the trench body, which would reduce the depth of the trench body and increase the difficulty of cleaning for the staff.

[0019] 2) In this invention, the accumulated water will carry the mud and sand into the interior of the fixed platform, and flow along the diversion plate to the upper end of the inclined block. The accumulated water will enter the interior of the trench body through the holes in the filter screen, while the mud and sand will be isolated on one side of the filter screen in the arc-shaped groove opened on the inclined block. After the motor is started, it can drive the sliding bracket to slide, thereby scraping off the mud and sand on the side wall of the filter screen and pushing the mud and sand on the inclined block together. The plate on one side of the fixed platform can be opened, which makes it convenient for the staff to clean. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall internal component connection structure of the present invention;

[0023] Figure 3 This is a diagram showing the distribution of the internal component connection structure of the internal sand filter assembly of the present invention;

[0024] Figure 4 Within the scope of this invention Figure 3 Sectional view;

[0025] Figure 5 For the present invention Figure 2 Enlarged view of point A in the middle;

[0026] Figure 6 This is a schematic cross-sectional view of the internal trench support of the present invention;

[0027] In the diagram: 1. Main body of the trench; 110. Drainage pipe; 111. Interception ditch; 2. Diversion assembly; 210. Diversion channel; 211. Two-way slope; 212. Filter ditch; 213. Isolation plate; 214. Transition box; 215. Guide box; 3. Sand filter assembly; 310. Fixed platform; 311. Motor; 312. Threaded rod; 313. Sliding bracket; 314. Mounting box; 315. Fixing strip; 316. Fixing plate; 317. Fixing column; 318. Scraper; 319. Inclined block; 320. Diversion plate; 321. Filter screen. Detailed Implementation

[0028] To make the technical methods, creative features, objectives, and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0029] like Figures 1-6 The diagram illustrates a deep trench and its slope anchor-sprayed support for a water supply station. The trench includes a main body 1, a diversion assembly 2 installed on one side of the main body 1, a filter trench 212 located on one side of a diversion channel 210, a sand filter assembly 3 installed on the side wall of the main body 1, a fixed platform 310 fixedly installed on one side of the main body 1, with both side walls of the fixed platform 310 being openable, an inclined block 319 fixedly installed inside a diversion plate 320, the inclined block 319 having multiple sets of arc-shaped grooves, one end of the diversion plate 320 fixedly connected to the inner wall of the fixed platform 310, the gap between the diversion plate 320 and the inclined block 319 being 1-1.5 cm, and a scraper plate 318 slidably connected to a fixed column 317. The thickness of the scraper plate 318 and the diversion plate 320 are... The gaps between the inclined blocks 319 are consistent; and the other side of the scraper 318 is slidably connected to the fixed column 317. The interior of the diversion assembly 2 includes a diversion channel 210, a bidirectional slope 211, a filter trench 212, an isolation plate 213, a transition box 214, and a guide box 215. The diversion channel 210 is fixedly installed on one side of the trench body 1. A bidirectional slope 211 is fixedly installed between the two sets of diversion channels 210. A set of isolation plates 213 is installed inside the filter trench 212. A set of transition boxes 214 is fixedly opened on one side of the filter trench 212. The transition box 214 is located between the diversion channel 210 and the trench body 1. The outlet on one side of the transition box 214 is fixedly connected to one end of the guide box 215. The guide box 215 is fixedly connected to the upper end of the fixed platform 310.

[0030] Preferably, the internal components of the sand filter assembly 3 include a fixed platform 310, a motor 311, a threaded rod 312, a sliding bracket 313, a mounting box 314, a fixing strip 315, a fixing plate 316, a fixing column 317, a scraping plate 318, an inclined block 319, a diversion plate 320, and the fixed platform 310. The fixed platform 310 is fixedly installed on one side of the trench body 1. A set of mounting boxes 314 are fixedly installed inside the fixed platform 310. A set of motors 311 are fixedly installed on the side wall of the mounting box 314. The output shaft of the motors 311 is fixedly connected to one end of the threaded rod 312, and the other end of the threaded rod 312 is connected to the other end of the threaded rod 312. A set of fixing strips 315 is fixedly installed inside the mounting box 314. A set of sliding brackets 313 is threadedly connected to the threaded rod 312. The sliding brackets 313 are slidably connected to the fixing strips 315 and are slidably connected to the sliding grooves opened on the side wall of the mounting box 314. A set of fixing plates 316 is fixedly installed on one side of the mounting box 314. The fixing plates 316 and the fixing strips 315 are made of moisture-absorbing materials such as gypsum board and bamboo charcoal board. A scraping plate 318 is fixedly connected to one side of the sliding brackets 313. The two ends of the fixing column 317 are fixedly connected to the inner wall of the fixing platform 310.

[0031] A construction method for deep trenches and deep trench slope anchor-sprayed support in a water supply station, the method comprising the following steps:

[0032] S1: First, after construction preparation, measurement and layout are carried out. According to the pipe diameter or cross-sectional size, the boundary line is measured and laid out according to the specified trench width. Before excavation, lime is used to mark the line for control. The location of the manhole is determined by setting control stakes on both sides of the trench and recording the distance from the two stakes to the center of the manhole. S2: Trench excavation. Before excavation, personnel are carefully organized to study the drawings and conduct investigations to fully understand the soil quality, groundwater level, underground structures, above-ground structures near the trench, and construction environment of the excavation section. SY420LC-7 excavator, LG350-7 excavator, and LG-50C loader are selected, and necessary safety measures are formulated to ensure construction quality and safety.

[0033] Preferably, the trench excavation construction measures are as follows: S21: Design a survey control network, including leveling points and axis control lines, measure and mark the center line of the trench excavation, determine the width of the trench opening, and mark the excavation boundary line with lime lines. If poor soil conditions are encountered during the excavation process, the trench slope should be increased, and the excavation depth and slope of each step should be strictly controlled; S22: Arrange for a dedicated person to check whether the actual operation is carried out according to the planned dimensions from top to bottom layer by layer. If ground cracks are found during the excavation process, effective support measures will be taken to ensure construction safety; S23: During the excavation, the amount of backfill soil and a reasonable stockpile location must be considered. The selection of the stockpile location depends on the specific conditions of the project site. Low-lying areas outside the construction boundary that are not affected or restricted by the surrounding environment can be used as spoil disposal sites.

[0034] (1) such as Figures 1-5 As shown, in this invention, the flood discharge system in the water supply station guides the water flow to the main body of the ditch 1. The water flow carries stones and silt into the interior of the diversion channel 210. Under the guidance of the diversion channel 210 and the bidirectional slope 211, the accumulated water carries stones and silt into the interior of the filter ditch 212. The stones will enter the bottom of the filter ditch 212 due to their own weight and the impact force of the accumulated water. After the filter ditch 212 is filled with accumulated water, the accumulated water will overflow and carry the silt into the interior of the transition box 214. Finally, it will be guided by the guide box 215 into the interior of the fixed platform 310, while the stones and other large solid materials will remain at the bottom of the filter ditch 212.

[0035] (2) In this invention, the water and mud will slide down the diversion plate 320 to the upper end of the inclined block 319. Multiple sets of arc grooves are opened on the inclined block 319. Under the deceleration of the arc grooves, the impact force of the water will gradually decrease. A small amount of mud and sand inside the water will remain in the inclined block 319 and the arc grooves opened on the inclined block 319. Finally, the water will enter the interior of the trench body 1 through the filter screen 321. The mud and sand will be isolated in the arc grooves opened on the inclined block 319 and the filter screen 321 on one side. After the motor 311 is started, it can drive the sliding bracket 313 to slide, thereby scraping off the mud and sand on the side wall of the filter screen 321 and pushing the mud and sand on the inclined block 319 together. The plate on one side of the fixed platform 310 can be opened, which makes it convenient for the staff to clean.

[0036] A set of fixing strips 315 is installed on one side of the sliding groove inside the mounting box 314. The fixing strips 315 and the fixing plate 316 are made of moisture-absorbing materials such as gypsum board and bamboo charcoal board. They can absorb moisture and prevent excessive moisture from entering the interior of the mounting box 314, which would affect the normal operation of the motor 311. The gap between the diversion plate 320 and the inclined block 319 is small, but when water flows down the diversion channel 210, the impact force will cause it to impact the inclined block 319, thereby effectively preventing water from entering the gap formed by the inclined block 319 and the diversion plate 320.

[0037] like Figures 1-6 As shown, a construction method for deep trench and slope anchor-sprayed support of a water supply station is described:

[0038] Construction process flow

[0039] Construction preparation → Site clearing → Surveying and setting out → Trench excavation → Retaining wall construction → Slope settlement and displacement monitoring → Foundation clearing and acceptance → Foundation drainage → Pipe (channel) construction → Manhole construction → Acceptance → Trench backfilling

[0040] Measurement and layout

[0041] According to the construction design documents, the center line of the water supply pipeline and the center position of the inspection well shall be measured and the center stakes shall be erected. Construction can only proceed after the pipeline center line and the inspection well center stakes have been reviewed and approved by the supervisor.

[0042] Based on the pipe diameter or cross-sectional size, the boundary line is marked out according to the specified trench width. Before excavation, the line is marked with lime for control. The location of the manhole is determined by setting control stakes on both sides of the trench and recording the distance from the two stakes to the center of the manhole for verification.

[0043] trench excavation

[0044] (1) Before excavation, organize personnel to study the drawings, conduct investigations and research, and fully understand the soil quality, groundwater level, underground structures, above-ground structures near the trench and the construction environment of the excavation section. Select SY420LC-7 excavator, LG350-7 excavator and LG-50C loader, and formulate necessary safety measures to ensure construction quality and safety.

[0045] (2) Excavation shall be carried out manually in conjunction with excavators. Before excavation, technicians shall provide detailed instructions to the excavator operators and assign a dedicated person to direct the operation. The elevation and width of the trench bottom shall be measured in a timely manner to prevent over-excavation and under-excavation. The slope coefficient for deep trench excavation shall be tentatively set at 1:0.75 based on the soil quality and excavation depth, and shall be operated in accordance with the specifications. If soft soil is found during excavation, wooden boards, supports, and square timber shall be used for full-section support immediately. Safety officers shall be stationed at both the top and bottom of the trench to monitor the trench in a timely manner, identify and eliminate any potential hazards. To ensure that the soil structure at the bottom of the trench is not disturbed or damaged, a layer of about 20 centimeters shall be left unexcavated during mechanical excavation and removed manually. When manually excavating the bottom of the trench, the elevation and width of the trench bottom shall be carefully controlled, and care shall be taken to avoid disturbing or damaging the soil structure at the bottom of the trench.

[0046] (3) Since the trench is deep, to ensure that the trench wall does not collapse, the slope is adopted and the trench is excavated in layers at a ratio of 1:0.75. The excavation depth of the upper layer is controlled at 2-2.5 meters and the excavation depth of the lower layer is controlled at 2-3 meters. The trench excavation is carried out in conjunction with the wall support construction. The width of the upper and lower openings of the trench and the stability of the top of the slope are well controlled so as not to affect the placement of pipe sections and to take safety into consideration.

[0047] (4) A temporary step with a width of 1-2 meters is set between the upper and lower layers of the trench to facilitate support construction. The second step is removed when the second layer of trench is excavated. At the same time, the construction access road for dumping soil on trucks, temporary pipe stacking, and pipe laying is also taken into consideration.

[0048] (5) Considering construction during the rainy season, the trench length should be shortened as much as possible, and drainage measures should be taken. If the trench is soaked by rainwater, measures should be taken as soon as possible to pump out the water, remove the silt, and backfill the wet trench with sand and gravel until it is stable. The backfill should not be too thick, which may cause uneven settlement of the foundation. Deep trenches should not be soaked in water for too long, otherwise they are very likely to collapse and endanger other structures. The excavation width at the bottom, in addition to the width of the foundation bottom, should be increased according to the construction needs to increase the width of the working surface and the supporting structure.

[0049] (6) The excavation width at the bottom of the trench (the net width between the support plates for supported trenches) should be increased in addition to the width of the pipeline structure. After the trench is excavated and the retaining wall is supported, the underground structure and installation works should be carried out in a timely manner. During the construction process, the stability of the pit wall should be checked frequently.

[0050] (7) Under normal soil conditions, pit wall excavation should be carried out vertically. For foundation pits or backfill layers with loose soil, the excavation depth should be less than 0.75m; for medium-density (shovel excavation) soil, it should be less than 1.23m; and for dense (pick excavation) soil, it should be less than 2.0m.

[0051] (8) After the deep trench slope is excavated, slope protection measures must be taken immediately to prevent the slope from collapsing or sliding. The slope protection method depends on the soil conditions, construction season, construction period and other factors. For example, waterproof films such as plastic sheeting and polypropylene woven fabric can be used for temporary covering. A diversion ditch connected to a sedimentation tank should be set up 1m away from the top of the slope, and the clean water should be discharged to the nearest clean water pipe network. Shotcrete and anchor wall protection construction should be carried out immediately. It is necessary to prevent the slope from being eroded by surface water or seepage water due to prolonged exposure time.

[0052] (9) When temporary pit wall supports are required for pipe trenches, the selection and design should be based on the excavation depth, soil conditions, groundwater level, construction method, adjacent buildings and structures, etc. The supports must be firm and reliable to ensure safe construction.

[0053] (10) The vertical walls and slopes of the pipe trench should be protected from collapse during excavation and exposure, and should be protected if necessary. When piling soil or materials on the upper side of the excavation slope or moving construction machinery, a certain distance should be maintained from the edge of the excavation to ensure the stability of the slope and vertical walls. When the soil quality is good, the piled soil or materials should be more than 2m away from the edge of the excavation, and the height should not exceed 1m.

[0054] Deep trench excavation construction measures:

[0055] (1) Design a measurement control network, including level points and axis control lines, measure and set out the center line of trench excavation, determine the trench opening width, and mark the excavation boundary line with lime lines. If there are sections with poor soil quality during the excavation process, the trench slope should be increased, and the excavation depth and slope of each step should be strictly controlled.

[0056] (2) Arrange for a dedicated person to check whether the actual operation is carried out by excavating layer by layer from top to bottom according to the planned dimensions. If ground cracks are found during the excavation process, effective support measures will be taken to ensure construction safety.

[0057] (3) Earthwork stockpiling:

[0058] During excavation, the amount of backfill soil to be used and its proper placement must be considered. Improper placement will directly affect construction safety.

[0059] ① Selection of soil piling location

[0060] The location for soil stockpiling will be selected based on the specific conditions of the construction site. Areas with large low-lying areas outside the construction boundary that are not affected or restricted by the surrounding environment can be used as spoil disposal sites. To facilitate material delivery, stockpiling, and construction, existing roads will be combined with newly constructed temporary construction access roads as temporary construction roads.

[0061] ② Requirements for soil piling include:

[0062] On one side of the ditch, the soil mound should be at least 2 meters away from the edge of the ditch, and its height should not exceed 2.5 meters. The top of the soil mound should be sloped outwards for drainage. Access roads should also be provided on site to facilitate construction and ensure safety.

[0063] (4) All materials required for the project, such as pipes, cement, gravel, and sand, should be stacked neatly at least 2 meters away from the edge of the ditch. If the soil quality is good and the site is narrow, the stacking location should be at least 0.8 meters away from the edge of the ditch to avoid causing the ditch to collapse.

[0064] (5) Excavation

[0065] Tracked excavators will be used for excavation. The backfill slope will initially be set at a 1:0.75 ratio. After excavation, the slope ratio will be appropriately increased based on soil characteristics and actual conditions. Step 2 should be formed in one continuous operation. Disturbance of the trench bottom soil by machinery is strictly prohibited. Mechanical excavation will cease when the trench reaches 20cm from the design elevation to prevent over-excavation. Manual excavation will then commence. Mechanical excavation must strictly control the centerline and slope to avoid deviation or over-excavation, which could affect the straightness and stability of the trench walls. During mechanical excavation, operators assisting with slope maintenance should maintain a safe distance from the excavator. If necessary, the machine should be stopped before resuming operation. Simultaneously, necessary support measures and soil turning along the trench edges should be implemented promptly to reduce pressure on the trench walls and promote stability. When vehicles are used for transporting excavated soil, no one should remain on the vehicle while the machinery is loading to ensure loading safety. If any unsafe factors are detected, appropriate measures should be taken immediately to ensure construction safety.

[0066] (6) Manual excavation

[0067] The following safety requirements should be observed when excavating soil manually:

[0068] ① All workers inside the trench must wear safety helmets. Wearing slippers, high heels, or going barefoot is prohibited on the construction site. Resting inside the trench is strictly prohibited during construction.

[0069] ② Ladders must be installed at the top and bottom of the trench. The ladders must be sturdy and have no missing steps. Climbing on the supports or riding on hoisting machinery to go up or down the trench is strictly prohibited.

[0070] ③ When digging, the two people should maintain a safe distance of more than 1.5 meters. The tools used should be checked frequently to ensure that they are intact, safe and reliable.

[0071] ④ The trench should be dug straight, and the dimensions of the top and bottom openings, centerline and slope should meet the requirements. The trench wall should be flat and free of unevenness, so as not to affect the stability of the trench wall and cause it to collapse.

[0072] (7) During construction, we will keep abreast of climate conditions and weather conditions, reduce the exposure time after trench excavation, increase construction investment, shorten the working face, and ensure timely excavation, timely construction, timely acceptance, and timely backfilling.

[0073] Working principle: During heavy rain, a significant amount of water remains on the ground and converges into a stream. The flood discharge system within the water supply station guides this stream towards the main body of the ditch 1. The water flow carries stones and silt into the diversion channel 210. Guided by the diversion channel 210 and the bidirectional slope 211, the accumulated water carries stones and silt into the filtration ditch 212. Due to their own weight and the impact force of the water, the stones reach the bottom of the filtration ditch 212. After the filtration ditch 212 is filled with water, the overflowing water carries the silt... Sand enters the interior of the transition box 214, and is finally guided by the guide box 215 into the interior of the fixed platform 310. Stones and other large solid materials remain at the bottom of the filter trench 212. Water and silt fall onto the upper end of the diversion plate 320, and then slide down the diversion plate 320 onto the upper end of the inclined block 319. The inclined block 319 has multiple sets of arc-shaped grooves. Under the deceleration of the arc-shaped grooves, the impact force of the water will gradually decrease, and a small amount of silt inside the water will remain on the inclined block 319 and the inclined block 310. Inside the arc-shaped groove on the 9th, the accumulated water will eventually enter the interior of the trench body 1 after being filtered by the filter screen 321, while the mud and sand will be isolated on one side of the filter screen 321 inside the arc-shaped groove on the inclined block 319. After the motor 311 is started, it can drive the sliding bracket 313 to slide, thereby scraping off the mud and sand on the side wall of the filter screen 321 and pushing the mud and sand on the inclined block 319 together. The plate on one side of the fixed platform 310 can be opened to facilitate cleaning by the staff. The sliding groove on the mounting box 314 is located on the upper... At the end, the gap between the diversion plate 320 and the inclined block 319 is small. The impact force brought by the water flowing down the diversion plate 320 can prevent the water from entering the partition on one side of the inclined block 319. The fixing plate 316 is made of moisture-absorbing material and can absorb a small amount of water droplets and moisture, preventing the motor 311 from sticking to the water flow or the mounting box 314 from being too damp, which would affect its operation. The drain pipe 110 can effectively drain water when there is too much water in the trench body 1, preventing the water in the trench body 1 from overflowing the fixing platform 310.

[0074] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. Scope of Protection of the Present Invention.

Claims

1. A deep trench, deep trench side slope anchor spray support of a water supply station, characterized in that: it comprises a trench body (1), accumulated water is filtered by a filter screen (321) and enters the inside of the trench body (1); a drainage assembly (2) is installed on one side of the trench body (1); a filter ditch (212) is arranged on one side of a drainage channel (210); a sand filtering assembly (3) is installed on the side wall of the trench body (1); a fixed platform (310) is fixedly installed on one side of the trench body (1), and the side walls on both sides of the fixed platform (310) are openable; an inclined block (319) is fixedly installed in the inside of a drainage plate (320), a plurality of arc-shaped grooves are arranged on the inclined block (319); one end of the drainage plate (320) is fixedly connected to the inner wall of the fixed platform (310), and the gap between the drainage plate (320) and the inclined block (319) is 1-1.5 cm; a scraping plate (318) is slidingly connected to the fixed column (317), the thickness of the scraping plate (318) is consistent with the gap between the drainage plate (320) and the inclined block (319); and the other side of the scraping plate (318) is slidingly connected to the fixed column (317). ​ ​ ​ ​ ​ ​ ​ ​ The inside of the sand filtering assembly (3) comprises a fixed platform (310), a motor (311), a threaded rod (312), a sliding support (313), a mounting box (314), a fixed strip (315), a fixed plate (316), a fixed column (317), a scraping plate (318), an inclined block (319), a drainage plate (320) and the fixed platform (310), the fixed platform (310) is fixedly installed on one side of the trench body (1), a group of mounting boxes (314) are fixedly installed in the fixed platform (310), a group of motors (311) are fixedly installed on the side wall of the mounting box (314), one end of the output shaft of the motor (311) is fixedly connected with one end of the threaded rod (312), the other end of the threaded rod (312) is rotatably connected to the other inner wall of the mounting box (314), a group of fixed strips (315) are fixedly installed in the mounting box (314), a group of sliding supports (313) are threadedly connected with the threaded rod (312), the sliding supports (313) are slidingly connected with the fixed strips (315) and the sliding grooves formed in the side wall of the mounting box (314), a group of fixed plates (316) are fixedly installed on one side of the mounting box (314), the fixed plates (316) and the fixed strips (315) are all hygroscopic materials, one side of the sliding support (313) is fixedly connected with the scraping plate (318), the both ends of the fixed column (317) are fixedly connected with the inner wall of the fixed platform (310), after the motor (311) is started, the sliding support (313) can slide, so that the silt on the side wall of the filter screen (321) is scraped off, and the silt on the inclined block (319) is pushed together.

2. A deep trench, deep trench side slope anchor shotcrete support of a water supply station according to claim 1, characterized in that: The inside of the drainage assembly (2) comprises a drainage channel (210), a two-way slope (211), a filtering ditch (212), an isolation plate (213), a transition box (214) and a guide box (215), the drainage channel (210) is fixedly installed on one side of the trench body (1), and a group of two-way slopes (211) are fixedly installed between the two groups of drainage channels (210).

3. A deep trench, deep trench side slope anchor shotcrete support of a water supply station according to claim 2, characterized in that: A group of isolation plates (213) are installed in the filtering ditch (212), a group of transition boxes (214) are fixedly formed on one side of the filtering ditch (212), the transition boxes (214) are located between the drainage channel (210) and the trench body (1), the water outlet on one side of the transition box (214) is fixedly connected with one end of the guide box (215), and the guide box (215) is fixedly connected with the upper end of the fixed platform (310).

4. The deep trench, deep trench side slope anchor shotcrete support of a water supply station according to claim 1, characterized in that: The hygroscopic material is a gypsum board or a bamboo charcoal board.

5. A construction method of a deep trench, deep trench slope anchor shotcrete support of a water supply station, comprising the deep trench, deep trench slope anchor shotcrete support of any one of claims 1 to 4, characterized in that, The construction method comprises the following steps: S1: first, construction preparation is performed, then measurement and line laying are carried out, according to the pipe diameter or the size of the section, the edge line is measured and laid out according to the specified trench width, lime is used to draw a line before excavation to control, and the distance from the two control piles to the center of the inspection well is recorded to control the determination of the position of the inspection well; S2: trench excavation, the trench is excavated according to the requirements.

6. The construction method according to claim 5, characterized in that In S2, the trench excavation specifically comprises the following steps: S21: design measurement control network, including level points, axis control line, trench excavation center line, determine the slot width, and mark the excavation line with lime line, if there are poor soil sections during excavation, the trench slope should be increased, and the excavation depth and slope of each step should be strictly controlled; S22: arrange special personnel to check whether the actual operation is according to the proposed size and excavates layer by layer from top to bottom. If ground cracks are found during excavation, support measures will be taken to ensure construction safety; S23: In the process of excavation, the selection of soil pile position is based on the specific conditions of the project site. If there are low-lying places outside the construction red line, the surrounding environment is not affected and limited, it can be used as a soil pile.

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