Deep groove of water supply station, deep groove side slope anchoring and shotcreting support and construction method of deep groove side slope anchoring and shotcreting support

Abstract

The invention relates to the technical field of water supply station construction, in particular to a deep groove of a water supply station, a deep groove side slope anchoring and shotcreting support and a construction method of the deep groove side slope anchoring and shotcreting support, and the deep groove comprises a groove main body, a drainage assembly, a filtering groove, a sand filtering assembly, an inclined block, a drainage plate and a scraping plate. Stone and other solid substances enter the bottom of the filtering groove, accumulated water continues to enter the transition box after the filtering groove is filled with the accumulated water, the stone and the solid substances brought by the accumulated water stay at the bottom of the filtering groove at the moment, and therefore the stone and the solid substances are prevented from entering the bottom of the groove body. The accumulated water flows to the upper end of the inclined block along the drainage plate, the accumulated water enters the groove main body along holes in the filter screen, the silt is isolated on one side of the filter screen in an arc-shaped groove formed in the inclined block, and the motor can drive the sliding bracket to slide after being started, so that the silt on the side wall of the filter screen is scraped; and therefore, workers can clean conveniently.

Description

TECHNICAL FIELD

[0001] The present 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. BACKGROUND

[0002] The deep trench of the water supply station mainly involves pipeline connection technology and trench backfill construction, and its core significance lies in improving the safety, durability and construction efficiency of the pipeline system, mainly used for water flow form adjustment and energy reduction, ensuring the stable operation of the water supply system, changing the trench structure to gradually transition the water flow from high-speed torrent to smooth water flow, preventing turbulence or scouring problems caused by cross-section changes, and also being able to 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, setting a buffer pool, etc.), to avoid damage to the downstream trench bottom or pipeline caused by high-speed water flow.

[0003] Although the traditional deep trench of the water supply station can ensure the stable operation of the water supply system, in heavy rain, there will be a lot of accumulated water on the ground, and the ground of the deep trench construction is generally low, so the water flow from a high place will gather at the deep trench position, thereby improving the effect of the water supply station flood discharge system and preventing the phenomenon of excessive water accumulation. When a large amount of accumulated water flows into the deep trench, the accumulated water will carry a large amount of silt and stones on the ground into the inside of the deep trench, which will cause the bottom of the deep trench to accumulate too much over time, and the depth will be greatly reduced, which is extremely troublesome for the staff to clean up. SUMMARY

[0004] In order to solve the above problems, the present application provides a deep trench of a water supply station, slope anchor spray support of the deep trench and a construction method thereof, which can prevent a large amount of silt and stones from being carried into the bottom of the deep trench by accumulated water.

[0005] In view of the problems in the prior art, the present application provides a deep trench of a water supply station, slope anchor spray support of the deep trench, which comprises a trench main body, a drainage assembly installed on one side of the trench main body, a filter trench opened on one side of the drainage channel, a sand filtering assembly installed on the side wall of the trench main body, a fixed platform fixedly installed on one side of the trench main body, and the side walls on both sides of the fixed platform are openable, an inclined block fixedly installed in the inside of the drainage plate, a plurality of arc-shaped grooves opened on the inclined block, one end of the drainage plate fixedly connected to the inner wall of the fixed platform, a gap of 1-1.5 cm between the drainage plate and the inclined block, a scraping plate slidingly connected to the fixed column, and the thickness of the scraping plate being consistent with the gap between the drainage plate and the inclined block; and the other side of the scraping plate slidingly connected to the fixed column.

[0006] Specifically, the inside of the drainage assembly includes a drainage channel, a two-way slope, a filter ditch, an isolation plate, a transition box and a guide box, the drainage channel is fixedly installed on one side of the trench body, a set of two-way slopes is fixedly installed between the two drainage channels, the inside of the filter ditch is provided with a set of isolation plates, a set of transition boxes is fixedly provided on one side of the filter ditch, the transition boxes are located between the drainage channels and the trench body, the water outlet on one side of the transition box is fixedly connected with one end of the guide box, and the guide box is fixedly connected with the upper end of the fixed platform.

[0007] Specifically, the inside of the filter sand assembly includes a fixed platform, a motor, a threaded rod, a sliding support, an installation box, a fixed strip, a fixed plate, a fixed column, a scraping plate, an inclined block, a drainage plate and a fixed platform, the fixed platform is fixedly installed on one side of the trench body, and a set of installation boxes is fixedly installed in the inside of the fixed platform.

[0008] Specifically, a set of motors is fixedly installed on the side wall of the installation box, the output shaft of the motor is fixedly connected with one end of the threaded rod, the other end of the threaded rod is rotatably connected with another inner wall of the installation box, and a set of fixed strips is fixedly installed in the inside of the installation box.

[0009] Specifically, a set of sliding supports is threadedly connected with the threaded rod, the sliding supports are slidingly connected with the fixed strips and the sliding grooves formed in the side wall of the installation box, a set of fixed plates is fixedly installed on one side of the installation box, the fixed plates and the fixed strips are made of moisture-absorbing materials such as gypsum board and bamboo charcoal plate, one side of the sliding support is fixedly connected with the side wall of the fixed column, and the two ends of the fixed column are fixedly connected with the inner walls of the fixed platform.

[0010] On the other hand, the application also provides a construction method of a deep trench and a deep trench slope anchor spray support of a water supply station, and the 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, the lime line is used to control before excavation, and the determination of the inspection well position is controlled by setting control piles on both sides of the trench and recording the distance from the two piles to the well center; S2: the trench is excavated, and the trench is excavated according to the requirements.

[0011] Further, the trench excavation specifically comprises the following steps: S21: a measurement control network is designed, including a leveling point, an axis control line, a trench excavation center line is measured and laid out, the slot opening excavation width is determined, and the excavation edge line is marked with a lime line; in the excavation process, if a poor soil section is encountered, the slot opening slope should be increased, and the excavation depth and the excavation slope of each layer of steps should be strictly controlled; S22: a special person is arranged to check whether the actual operation is in accordance with the proposed size and excavates layer by layer from top to bottom, and in the excavation process, if ground cracks are found, effective support measures are taken to ensure construction safety. S23: In the excavation, the selection of the earth pile position is according to the specific circumstances of the engineering site, the low-lying place outside the construction red line has a large range, the surrounding environment is not affected and limited, and the earth pile position is used as the earth pile field.

[0012] The beneficial effects of the present application are: 1) In the present application, the accumulated water drives the silt into the inside of the filter ditch, the stones and other solid substances enter the bottom of the filter ditch, and after the filter ditch is filled with water, the accumulated water enters the inside of the transition box, at this time, the stones and solid substances brought by the accumulated water are stopped at the bottom of the filter ditch, thereby preventing the stones and solid substances from entering the bottom of the main body of the ditch, reducing the depth of the inside of the main body of the ditch, and increasing the difficulty of cleaning for the workers; 2) In the present application, the accumulated water drives the silt into the inside of the fixed platform, flows along the drainage plate to the upper end of the inclined block, and the accumulated water enters the inside of the main body of the ditch through the holes on the filter screen, 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 be driven to slide, thereby scraping off the silt on the side wall of the filter screen, and pushing the silt on the inclined block together, and the plate on one side of the fixed platform can be opened, thereby facilitating the cleaning of the workers. BRIEF DESCRIPTION OF DRAWINGS

[0013] The present application will be further described below in combination with the drawings and examples.

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application; Figure 2 It is a schematic diagram of the internal part connection structure of the overall structure of the present application; Figure 3 It is a distribution diagram of the internal part connection structure of the internal sand filtering assembly of the present application; Figure 4 It is a schematic diagram of the internal sand filtering assembly of the present application; Figure 3 Cross-sectional view; Figure 5 It is an enlarged view of A in the present application; Figure 2 Figure 6 It is a schematic diagram of the internal ditch support section of the present application; In the figure: 1, main body of ditch; 110, water drain pipe; 111, intercepting ditch; 2, drainage assembly; 210, drainage channel; 211, two-way slope; 212, filter ditch; 213, isolation plate; 214, transition box; 215, guide box; 3, sand filtering assembly; 310, fixed platform; 311, motor; 312, threaded rod; 313, sliding support; 314, mounting box; 315, fixed bar; 316, fixed plate; 317, fixed column; 318, scraping plate; 319, inclined block; 320, drainage plate; 321, filter screen. DETAILED DESCRIPTION​

[0015] In order to make the technical method, creative features, purposes and effects of the present application easy to understand, the present application is further described below in conjunction with specific embodiments.

[0016] As Figures 1-6 The deep trench, deep trench slope anchor spray support of a water supply station shown in the figure, including trench main body 1, drainage assembly 2 installs one side of trench main body 1, filter trench 212 is opened in one side of drainage channel 210, sand filter assembly 3 is installed on the side wall of trench main body 1, fixed platform 310 is fixedly installed on one side of trench main body 1, and the side walls on both sides of fixed platform 310 can be opened, inclined block 319 is fixedly installed in the inside of drainage plate 320, a plurality of groups of arc grooves are opened in inclined block 319, one end of drainage plate 320 is fixedly connected with the inner wall of fixed platform 310, the gap between drainage plate 320 and inclined block 319 is 1-1.5cm, scraping plate 318 is slidingly connected with fixed column 317, the thickness of scraping plate 318 is consistent with the gap between drainage plate 320 and inclined block 319; and the other side of scraping plate 318 is slidingly connected with fixed column 317, the inside of drainage assembly 2 includes drainage channel 210, bidirectional slope 211, filter trench 212, isolation plate 213, transition box 214 and guide box 215, drainage channel 210 is fixedly installed on one side of trench main body 1, a group of bidirectional slopes 211 are fixedly installed between two groups of drainage channels 210, a group of isolation plates 213 are installed in the inside of filter trench 212, a group of transition boxes 214 are fixedly opened on one side of filter trench 212, transition box 214 is located between drainage channel 210 and trench main body 1, the water outlet on one side of transition box 214 is fixedly connected with one end of guide box 215, and guide box 215 is fixedly connected with the upper end of fixed platform 310.

[0017] Preferably, the inside of the sand filtering assembly 3 comprises a fixed platform 310, a motor 311, a threaded rod 312, a sliding bracket 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 is fixedly installed on one side of the trench body 1, a group of mounting boxes 314 are fixedly installed inside 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 inside the mounting box 314, a group of sliding brackets 313 are threadedly connected with the threaded rod 312, the sliding bracket 313 is slidingly connected with the fixed strip 315 and a sliding groove 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 plate 316 and the fixed strip 315 are both made of moisture-absorbing materials such as gypsum board and bamboo charcoal plate, one side of the sliding bracket 313 is fixedly connected with the side wall of the fixed column 317, and both ends of the fixed column 317 are fixedly connected with the inner wall of the fixed platform 310.

[0018] A construction method of a deep trench and a deep trench slope anchor spray support of a water supply station, the method comprising the following steps: S1: first, construction preparation is carried out, then measurement and line laying are carried out, according to the diameter of the pipeline 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 to control before excavation, and the determination of the inspection well position is controlled by setting control piles on both sides of the trench and recording the distance from the two piles to the center of the well; S2: trench excavation, before trenching, personnel are organized to carefully study the drawings, investigation and research are carried out, the soil quality, underground water level, underground structure, aboveground structure near the trench and construction environment of the trenching section are fully understood, a SY420LC-7 excavator, a LG350-7 excavator and a LG-50C dumper are selected, necessary safety measures are formulated, and the construction quality and safety are ensured.

[0019] Preferably, the trench excavation construction measures are as follows: S21: design and measure the control network, including the level points and axis control lines, measure and lay out the excavation center line of the trench, determine the slot opening excavation width, and mark the excavation edge line with lime line, if poor soil sections are encountered during the excavation process, the slot opening 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 in accordance with the proposed size and excavates 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; S23: during excavation, the excess amount of backfilling soil and the reasonable stacking position must be considered, the selection of the stacking position is based on the specific conditions of the engineering site, a range of low-lying places outside the construction red line, the surrounding environment is not affected and limited, and can be used as a spoil ground.

[0020] (1) As shown in Figures 1-5 , the flood discharge system in the water supply station guides the water flow to the trench main body 1, and the water flow drives the stones and silt into the drainage channel 210. Under the guidance of the drainage channel 210 and the two-way slope 211, the accumulated water drives the stones and silt into the filter trench 212. The stones enter the bottom of the filter trench 212 due to their own weight and the impact force of the accumulated water. After the filter trench 212 is filled with accumulated water, the accumulated water overflows to drive the silt into the transition box 214, and finally enters the fixed platform 310 under the guidance of the guide box 215. The stones and other large solid materials remain at the bottom of the filter trench 212.

[0021] (2) In the present application, the accumulated water and silt will slide down the inclined block 319 on the upper end of the inclined block 319. A plurality of arc-shaped grooves are formed on the inclined block 319. Under the deceleration of the arc-shaped grooves, the impact force of the accumulated water will gradually decrease, and a small part of the silt in the accumulated water will remain in the arc-shaped grooves on the inclined block 319. Finally, the accumulated water will be filtered by the filter screen 321 and enter the inside of the trench main body 1, and the silt will be isolated on one side of the arc-shaped groove on the inclined block 319 and the filter screen 321. After the motor 311 is started, it can drive the sliding bracket 313 to slide, thereby scraping off the silt on the side wall of the filter screen 321 and pushing the silt on the inclined block 319 together. The plate on one side of the fixed platform 310 can be opened to facilitate the cleaning of the staff. A group of fixed strips 315 is installed on one side of the sliding slot in the installation box 314. The fixed strips 315 and the fixed plates 316 are made of moisture-absorbing materials such as gypsum board, bamboo charcoal board, etc. They can absorb moisture and prevent excessive moisture from entering the inside of the installation box 314, thereby affecting the normal operation of the motor 311. The gap between the drainage plate 320 and the inclined block 319 is small, but when the accumulated water flows down the drainage channel 210, the impact force will cause it to impact on the inclined block 319, thereby effectively preventing the accumulated water from entering the interlayer formed by the inclined block 319 and the drainage plate 320.

[0022] As shown in Figures 1-6 , a deep trench and slope anchor spray support construction method for a water supply station: Construction process Construction preparation → site cleaning → measurement and line laying → trench excavation → insertion of retaining wall → slope settlement and displacement observation → foundation cleaning and acceptance → foundation drainage → pipe (channel) construction → inspection well masonry → acceptance → trench backfilling Measurement and line laying According to the construction drawing design document, the water supply pipe center line and the inspection well center position are measured and set, and the center stake is set. The pipe center line and the inspection well center stake are reviewed by the supervisor before construction.

[0023] According to the pipe diameter or cross-sectional size, the edge line is measured according to the specified groove width, and the lime is marked before excavation to control. The determination of the inspection well position is controlled by setting control piles on both sides of the trench, and the distance from the two piles to the well center is recorded for checking.

[0024] Trench excavation (1) Before trenching, carefully organize personnel to study drawings, conduct investigation and research, fully understand the soil quality, underground water level, underground structure, aboveground structure near the trench, and construction environment of the trenching section, select SY420LC-7 excavator, LG350-7 excavator, LG-50C shovel, develop necessary safety measures, and ensure construction quality and safety.

[0025] (2) Manual excavation with excavator is adopted. Before trenching, the technician details the trenching to the excavator driver, and sets up a special person to command, measures the trench bottom elevation and width in time to prevent over-excavation and under-excavation. The side slope coefficient of deep trench excavation is temporarily determined as 1:0.75 according to soil quality and excavation depth, and specific operation is carried out according to the specification. When soft soil section is found during excavation, full-face support is immediately carried out with wooden boards, supports and square timbers. Safety officers are set up on the upper and lower sides of the trench to observe the trench in time and eliminate various dangers. In order to ensure that the soil structure of the trench bottom is not disturbed and damaged, a layer of about 20 cm should be left undug during mechanical excavation, and then manually removed. When manually excavating the trench bottom, the trench bottom elevation and width should be carefully controlled, and attention should be paid to not disturbing and damaging the soil structure of the trench bottom.

[0026] (3) Due to the deep trench excavation, the trench wall should be ensured not to collapse, and the slope is adopted according to the ratio of 1:0.75, the upper layer excavation depth is controlled at 2-2.5 meters, and the lower layer excavation depth is controlled at 2-3 meters. Trench excavation is inserted with support construction, the width of the upper and lower trench and the stability of the side slope top are well controlled, which is suitable for not affecting the hoisting of pipe sections and considering safety.

[0027] (4) The temporary step width between the upper and lower layers of the trench is 1-2 meters, which is convenient for support construction. The second step is excavated when excavating the second layer of trench, and the automobile soil dumping surface and temporary pipe stacking and pipe laying working layer construction access are also considered.

[0028] (5) Considering the construction during the rainy season, the trenching length should be shortened as much as possible, and good waterproof 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 accumulated water, remove the silt, backfill the wet trench with sand and stone materials, and achieve stability. It is not suitable to lay too thick, which may cause uneven foundation settlement. The excavation width of the deep trench should not be soaked in water for too long, otherwise it is easy to collapse and endanger others. The excavation width of the bottom, in addition to the width of the foundation bottom, should be increased according to the width of the working surface and the width of the support structure according to the construction needs.

[0029] (6) The width of trench bottom excavation (the net width between support plates for supported trench), in addition to the width of pipeline structure, shall be increased by the width of working surface. After the trench is excavated and the support wall is supported, the underground structure and installation construction shall be carried out in time. During the construction, the stability of the pit wall shall be checked frequently.

[0030] (7) The pit wall shall be excavated vertically under normal soil conditions. For the foundation pit of soft soil or backfill soil layer, the excavation depth shall be less than 0.75 m; for the soil of medium density (shovel excavation), it shall be less than 1.23 m; and for the compact soil (pick excavation), it shall be less than 2.0 m.

[0031] (8) After the deep trench slope is excavated, measures must be taken immediately to protect the slope to prevent the slope from collapsing or sliding. Depending on the soil conditions, construction season, construction period, etc., the non-permeable membrane such as plastic cloth and polypropylene woven fabric can be temporarily used for covering, a catchment ditch is set up 1 m away from the upper opening of the slope to connect to the sand settling tank, the clear water is discharged to the nearest clear water pipe network, and the jet anchor support wall construction is carried out immediately, etc. The exposure time should be prevented from being too long to cause the surface water or seepage water to wash away the slope.

[0032] (9) When temporary pit wall support is required for the trench, it shall be selected and designed according to the excavation depth, soil conditions, underground water level, construction method, adjacent buildings and structures, etc. The support must be firm and reliable to ensure safe construction.

[0033] (10) The vertical wall and slope of the trench shall be protected against collapse during excavation and exposure, and shall be protected if necessary. When earth or materials are piled on the side slope or construction machinery is moved, a certain distance shall be maintained from the edge of the excavation to ensure the stability of the slope and vertical wall. When the soil is good, the earth or materials shall be piled 2 m away from the edge of the excavation, and the height shall not exceed 1 m.

[0034] Construction measures for deep trench and combined trench excavation: (1) Design and measure the control network, including the level points and axis control lines, measure and place the excavation center line of the trench, determine the width of the trench opening, and mark the excavation edge line with lime line. If poor soil is encountered during excavation, the trench slope shall be increased, and the excavation depth and slope of each step shall be strictly controlled.

[0035] (2) Arrange a person to check whether the actual operation is in accordance with the proposed size and excavates layer by layer from top to bottom. If ground cracks are found during excavation, effective support measures shall be taken to ensure construction safety.

[0036] (3) Earthwork stacking: During excavation, the excess amount of backfill soil and the reasonable stacking position must be considered. If it cannot be reasonably stacked, it will directly affect the safety of construction.

[0037] ① Selection of earth stacking position The selection of the earth pile position is based on the specific conditions of the engineering site, the low-lying area outside the construction red line with a large range, the surrounding environment not affected and limited, which can be used as a spoil ground. In order to facilitate feeding, piling and construction, the original old road is not broken and a new temporary construction road is built as a temporary construction road.

[0038] ② The earth pile requirements include: On one side of the ditch, it should be 2 meters away from the ditch, and the height should not exceed 2.5 meters, and the top of the earth pile should be outwardly sloped. Consideration should also be given to leaving a site road for the convenience of construction and safety.

[0039] (4) The pipes, cement, stones, sand and other materials required for the project should be neatly piled up 2 meters away from the ditch, and when the soil quality is good and the site is narrow, the pile position should be at least 0.8 meters away from the ditch to prevent the ditch from collapsing.

[0040] (5) Excavation of earthwork The earthwork is excavated by a crawler excavator, and the slope of the backfill soil layer is temporarily set at 1:0.75. After excavation, the slope coefficient is appropriately increased according to the characteristics and actual conditions of the soil. For steps 2, it should be formed in one step, and mechanical disturbance to the soil in the trench bottom is strictly prohibited. The trench is excavated to a position 20 cm away from the design elevation to prevent over-excavation, and then manual excavation is used. Mechanical excavation should be strictly controlled in terms of centerline and slope to prevent deviation or over-excavation, which may affect the straightness of the trench and the stability of the ditch wall. When excavating with a machine, the slope bottom operator should maintain a safe distance from the shovel, and if necessary, the machine should be stopped first and then operated. At the same time, necessary support measures and ditch edge soil turning work should be taken in time to reduce the pressure on the ditch wall and facilitate the stability of the ditch wall. When vehicles cooperate to transport earthwork, no one should stay on the vehicle during mechanical loading to ensure loading safety. If there are unsafe factors, appropriate measures should be taken immediately to ensure construction safety.

[0041] (6) Manual excavation Manual excavation should comply with the following safety requirements: ① The construction personnel in the trench must wear safety helmets, and it is prohibited to wear slippers, high heels or bare feet in the construction site. During construction, it is strictly prohibited to rest in the trench.

[0042] ② Ladders must be set up for going up and down the trench, and the ladders should be sturdy and not lack layers. It is strictly prohibited to climb supports or ride on hoisting machinery to go up and down the trench.

[0043] ③ When excavating, the distance between two people should be kept at least 1.5 meters apart for safety, and the tools used should be checked regularly for damage and safety.

[0044] ④ The trench should be excavated straight, the size of the upper and lower openings, the centerline and the slope should meet the requirements, and the trench wall should be smooth without concave and convex phenomena to avoid affecting the stability of the ditch wall and causing the ditch wall to collapse.

[0045] (7) Construction, we will timely grasp the weather conditions and weather, reduce the trench after excavation exposure time, increase construction investment, shorten the working face, to timely excavation, timely construction, timely acceptance, timely backfill.

[0046] The working principle is: in the rain, there is more water on the ground, and the water flow is gathered, the flood discharge system in the water supply station guides the water flow to the trench main body 1, and the water flow drives the stones and the silt into the drainage canal 210, under the guidance of the drainage canal 210 and the two-way slope 211, the accumulated water drives the stones and the silt into the filter ditch 212, the stones 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 overflows to drive the silt into the transition box 214, and finally enters the fixed platform 310 under the guidance of the guide box 215, while the stones and other large solid materials stay at the bottom of the filter ditch 212, the accumulated water and the silt fall on the upper end of the drainage plate 320, and then slide on the upper end of the inclined block 319, a plurality of arc grooves are formed on the inclined block 319, under the deceleration of the arc grooves, the impact force of the accumulated water gradually decreases, and a small part of the silt in the accumulated water remains in the arc grooves on the inclined block 319 and the filter screen 321, finally the accumulated water is filtered into the trench main body 1 through the filter screen 321, and the silt is isolated on one side of the arc grooves on the inclined block 319 and the filter screen 321, the motor 311 can drive the sliding bracket 313 to slide after starting, so as to scrape off the silt on the side wall of the filter screen 321, and push the silt on the inclined block 319 together, and the plate on one side of the fixed platform 310 can be opened, so as to facilitate the cleaning of the staff, and the sliding groove on the installation box 314 is located at the upper end, the gap between the drainage plate 320 and the inclined block 319 is small, the impact force brought by the water flow sliding down from the drainage plate 320 can avoid the water flow entering the side layer of the inclined block 319, and the fixed plate 316 is made of a hygroscopic material and can absorb a small amount of water droplets and moisture, so as to avoid the motor 311 adhering to the water flow, or the excessive moisture in the installation box 314 affecting the operation, and the drain pipe 110 can effectively drain water when the water in the trench main body 1 is too much, so as to prevent the water in the trench main body 1 from overflowing the fixed platform 310.

[0047] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A deep trench, deep trench slope anchor shotcrete support for a water supply station, characterized in that: it comprises a 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 the 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 inside the drainage plate (320), and a plurality of arc-shaped grooves are arranged on the inclined block (319); a drainage plate (320) is fixedly connected to the inner wall of the fixed platform (310) at one end, 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), and 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 drainage assembly (2) comprises a drainage channel (210), a bidirectional slope (211), a filter 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 bidirectional slopes (211) are fixedly installed between the two groups of drainage channels (210). A group of isolation plates (213) are installed inside the filter ditch (212), a group of transition boxes (214) are fixedly arranged on one side of the filter 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 to one end of the guide box (215), and the guide box (215) is fixedly connected to the upper end of the fixed platform (310). The inside of the sand filtering assembly (3) comprises a fixed platform (310), a motor (311), a threaded rod (312), a sliding support (313), an installation box (314), a fixed bar (315), a fixed plate (316), a fixed column (317), a scraping plate (318), an inclined block (319), a drainage plate (320), and a fixed platform (310), the fixed platform (310) is fixedly installed on one side of the trench body (1), and a group of installation boxes (314) are fixedly installed inside the fixed platform (310). A group of motors (311) are fixedly installed on the side wall of the installation box (314), the output shaft of the motor (311) is fixedly connected to 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 installation box (314), and a group of fixed bars (315) are fixedly installed inside the installation box (314). ​ ​ ​ ​ 2. The deep trench, deep trench side slope anchor shotcrete support of a water supply station according to claim 1, characterized in that: ​ 3. A deep trench, deep trench side slope anchor shotcrete support of a water supply station according to claim 2, characterized in that: ​ 4. The deep trench, deep trench side slope anchor shotcrete support of a water supply station according to claim 1, characterized in that: ​ 5. A deep trench, deep trench side slope anchor shotcrete support of a water supply station according to claim 4, characterized in that: ​ 6. A deep trench, deep trench side slope anchor shotcrete support of a water supply station according to claim 5, characterized in that: A group of sliding supports (313) are threadedly connected on the threaded rod (312), the sliding supports (313) are slidingly connected on the fixed strips (315), and are slidingly connected on the sliding grooves on the side walls of the mounting boxes (314), one side of the mounting boxes (314) is fixedly installed with a group of fixed plates (316), the fixed plates (316) and the fixed strips (315) are all hygroscopic materials, one side of the sliding supports (313) is fixedly connected with the side walls of the fixed columns (317), and both ends of the fixed columns (317) are fixedly connected with the inner walls of the fixed platforms (310).

7. A deep trench, deep trench side slope anchor shotcrete support of a water supply station according to claim 6, characterized in that: The hygroscopic material is a gypsum board or a bamboo charcoal board.

8. 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 7, characterized in that, The construction method comprises the following steps: S1: first, construction preparation is carried out, then measurement and line laying are carried out, according to the pipe diameter or the section size, the edge line is measured and laid out according to the specified groove width, lime is used to draw a line to control before excavation, and the distance from two piles to the center of the inspection well is recorded by controlling the position of the inspection well through setting control piles on both sides of the groove; S2: groove excavation, the groove is excavated according to the requirements.

9. The construction method according to claim 8, characterized in that, In S2, the groove excavation specifically comprises the following steps: S21: design a measurement control network, including a leveling point, an axis control line, measure and lay out the excavation center line of the groove, determine the slot opening excavation width, and mark the excavation edge line with lime, if the soil quality is poor during the excavation process, the slotting slope should be increased, and the excavation depth and the excavation slope of each layer of steps should be strictly controlled; S22: arrange a person to check whether the actual operation is excavated layer by layer from top to bottom according to the proposed size, if ground cracks are found during the excavation process, supporting measures should be taken to ensure construction safety; S23: in the excavation, the selection of the soil pile position is based on the specific conditions of the engineering site, if there is a low-lying place outside the construction red line, the surrounding environment is not affected and limited, and the soil pile position is used as a soil pile.

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