CN116104127B - A retaining wall, an anti-clogging filter device, and a construction method - Google Patents
A retaining wall, an anti-clogging filter device, and a construction methodInfo
- Publication number
- CN116104127B CN116104127B CN202310076626.XA CN202310076626A CN116104127B CN 116104127 B CN116104127 B CN 116104127B CN 202310076626 A CN202310076626 A CN 202310076626A CN 116104127 B CN116104127 B CN 116104127B
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- wall
- water
- sedimentation tank
- water collector
- retaining wall
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/18—Making embankments, e.g. dikes, dams
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/20—Restraining of underground water by damming or interrupting the passage of underground water by displacing the water, e.g. by compressed air
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/08—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- Retaining Walls (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
本发明实施例公开一种挡土墙、防堵塞排滤装置和施工方法，属于水利施工技术领域，墙体埋设在墙后坡面的土层下，墙体结构顶端设置有集水器，墙体结构内部设置设有与集水器连通的内腔，前侧设置有承重墙面，承重墙面上设置有若干排水孔，若干排水孔与内腔连通以便将地下水倒入内腔，基座内部设置有沉淀池，排水孔和集水器均向沉淀池排水，并且积水中含有的泥沙会在沉淀池中沉淀积累。在此基础上，支撑构件顶部与承重墙面相抵，底部斜向设置在虹吸构件上，虹吸构件固定设置在沉淀池侧面，沉淀池通过虹吸构件与蓄水池连通，虹吸构件可将沉淀池上部的清水导入蓄水池，并排入市政排水主管，位于沉淀池下部的泥浆则通过螺杆泵排出内腔。
This invention discloses a retaining wall, an anti-clogging filtration device, and a construction method, belonging to the field of hydraulic construction technology. The wall is buried under the soil layer on the slope behind the wall. A water collector is installed at the top of the wall structure, and an inner cavity communicating with the water collector is set inside the wall structure. A load-bearing wall is set on the front side, and several drainage holes are set on the load-bearing wall. Several drainage holes are connected to the inner cavity to pour groundwater into the inner cavity. A sedimentation tank is set inside the base. Both the drainage holes and the water collector drain water into the sedimentation tank, and the silt contained in the accumulated water will settle and accumulate in the sedimentation tank. On this basis, the top of the supporting member abuts against the load-bearing wall, and the bottom is set obliquely on the siphon member. The siphon member is fixedly set on the side of the sedimentation tank, and the sedimentation tank is connected to the water storage tank through the siphon member. The siphon member can guide the clear water in the upper part of the sedimentation tank into the water storage tank and discharge it into the municipal drainage main. The sludge in the lower part of the sedimentation tank is discharged from the inner cavity by a screw pump.
Description
Technical Field
The invention relates to the technical field of water conservancy construction, in particular to a retaining wall, an anti-blocking drainage device and a construction method.
Background
The retaining wall is a structure which mainly bears the soil pressure and prevents the soil from collapsing and sliding. Conventional retaining wall structures often adopt solid structures such as a slurry masonry or concrete structure, and through setting up the infiltration hole, in order to reduce the groundwater level behind the wall, thereby improve the self stability of retaining wall. However, the seepage Kong Jiyi of the traditional retaining wall is blocked and is not easy to dredge, so that groundwater can not be discharged quickly after the wall is in a heavy rain period, the stability of the retaining wall is greatly influenced, even the retaining wall is broken down or collapses, and the influence on life and property safety is larger.
Disclosure of Invention
Therefore, the invention provides a retaining wall, an anti-blocking drainage device and a construction method, which are used for solving the problems that in the prior art, the retaining wall is broken down or collapses due to blockage of water seepage Kong Jiyi and inapplicability to dredging.
In order to achieve the above object, the present invention provides the following technical solutions:
according to a first aspect of the present invention,
The technical scheme adopted by the invention is that the retaining wall comprises:
The wall body structure is characterized in that a water collector is arranged at the top end of the wall body structure, an inner cavity communicated with the water collector is arranged in the wall body structure, a bearing wall surface is arranged at the front side of the wall body structure, a plurality of water draining holes are formed in the bearing wall surface, and a plurality of water draining holes are communicated with the inner cavity;
The top of the base is integrally formed with the wall body structure, a sedimentation tank is arranged in the base, the sedimentation tank is positioned at the bottom of the inner cavity, and the drain hole and the water collector drain water to the sedimentation tank;
The top of the supporting member is propped against the bearing wall surface, the bottom of the supporting member is obliquely arranged on the siphon member, the siphon member is fixedly arranged on the side surface of the sedimentation tank, and the sedimentation tank is communicated with the reservoir through the siphon member;
The drainage holes are used for draining groundwater below the slope surface behind the wall, the water collector is used for collecting rainwater left on the slope surface behind the wall, all collected water flows enter the sedimentation tank to be settled, when the water level in the sedimentation tank is higher than that of the siphon members, the siphon members can guide clear water on the upper part of the sedimentation tank into the reservoir and discharge the clear water into the municipal drainage main pipe, and mud on the lower part of the sedimentation tank is discharged to the ground through the screw pump.
Further, the supporting member is a suspension ladder which is obliquely arranged and plays a supporting role.
Further, the base includes:
the top of the wall base is integrally connected with the wall body structure, the bottom of the wall base is provided with an anti-slip key, and a reservoir is arranged above the anti-slip key;
and the bottom of the wall toe is flush with the bottom of the wall base and integrally connected with the front end of the wall base.
Further, the junction of base and wall structure is provided with triangle reinforced structure, triangle reinforced structure top is provided with the water course with sedimentation tank intercommunication, the water course is located the water collector under to carry out the drainage to the rainwater that the water collector was collected.
Furthermore, an access door is hermetically arranged at the position of the front side of the wall structure, which leaks out of the ground.
Further, a water filtering grate is arranged at the upper end of the water collector;
waterproof layers are arranged on the inner cavity and the inner wall of the sedimentation tank.
Further, a shut-off valve is arranged on the siphon component;
the inside of the drain hole is provided with an anti-blocking clamp for filtering sediment, and the inside of the drain hole is provided with an anti-blocking telescopic clamp for fixing.
According to a second aspect of the present invention,
The invention adopts the technical scheme that an anti-blocking drainage device is provided, which is arranged in a drainage hole of a retaining wall and comprises:
the shell is provided with a rubber layer on the outer side, a filter element is arranged in the shell, and through holes communicated with the filter element are formed in the front end and the rear end of the shell;
The tail part of the conical body is connected with the front end of the shell, and the side part of the conical body is provided with a water permeable hole communicated with the through hole.
Further, the filter element comprises geotextile, medium coarse sand, broken stone and sand gravel, and the geotextile, medium coarse sand, broken stone and sand gravel are arranged in the shell along the length direction of the shell.
According to a third aspect of the present invention,
The invention discloses a construction method, which is applied to a retaining wall or an anti-blocking drainage device, and comprises the following steps:
1. Foundation trench excavation, template erection, steel bar binding, pre-burying of a communication pipe and pre-burying of embedded parts required by installation of a drainage control valve, concrete pouring, and pouring of a base and a wall structure are completed, and meanwhile, vertical steel bars are reserved at the top of the base so that the water collector is integrally connected with the inner cavity;
2. Setting up a template, binding reinforcing steel bars, reserving and installing drain holes of the anti-blocking drainage device, reserving and embedding holes and embedded parts for installing an access door, embedding the embedded parts for installing the embedded parts of the telescopic clamp, pouring concrete, and finishing pouring of the water collector, wherein vertical reinforcing steel bars are reserved at the top of the water collector and are integrally connected with the water collector in a wall structure;
3. Building a template, binding reinforced concrete to finish pouring of the wall structure, and after the integral drainage type retaining wall structure reaches the design strength, removing the template and paving geotextile from bottom to top on the back side of the structural wall;
4. A constructor enters from the access door to overhaul the shutoff valve, then controls the telescopic clamp to enable the telescopic clamp to be in a contracted state, loads the anti-blocking drainage device into the drainage hole, controls the telescopic clamp to enable the telescopic clamp to be in an extended state, supports the anti-blocking drainage device, and finally installs the access door;
5. filling soil on two sides of the layered symmetrical backfill drainage type retaining wall structure, rolling and tamping until the wall is backfilled to the bottom of the road surface before backfilling, continuously filling soil after backfilling the wall in layers, and rolling and tamping;
6. after all backfilling is finished, the pavement structure in front of the wall is restored according to the original pavement structure design;
7. And installing a water filtering grate on the water collector to finish the construction of the drainage type retaining wall structure with the replaceable anti-blocking device.
The invention has the beneficial effects that:
Compared with the prior art, the wall-mounted water collector has the advantages that the water collector at the top of the wall structure and the anti-blocking drainage device at the back side of the wall can be used for rapidly cutting off the runoff of the slope surface behind the wall and the groundwater in the filling soil at the back, and the water is collected in the sedimentation tank and discharged for use through sedimentation. Therefore, firstly, runoff and groundwater on a slope surface behind a wall can be prevented from being directly discharged to a road surface, so that the risk of road ponding is reduced, secondly, the groundwater level behind the wall can be quickly reduced, the safety stability of a retaining wall structure is improved, thirdly, the dead weight of the retaining wall structure can be increased by water bodies accumulated in a water storage cavity, the anti-skid and anti-tilting capabilities of the retaining wall structure are further improved, fourthly, the hazard effect of groundwater in a heavy rain period on the safety of the retaining wall structure is converted into the benefit of the safety of the retaining wall structure, and thirdly, the anti-blocking drainage device has replaceability, and the drainage structure of the retaining wall can be prevented from being blocked.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the invention, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present invention, should fall within the ambit of the technical disclosure.
Fig. 1 is a schematic view of a retaining wall structure according to the present invention;
FIG. 2 is a schematic view of a wall structure and a base structure according to the present invention;
FIG. 3 is a schematic view of a siphon member according to the present invention;
FIG. 4 is a schematic installation diagram of an anti-clogging drainage device provided by the invention;
FIG. 5 is a schematic diagram of the internal structure of the anti-clogging draining device provided by the invention;
FIG. 6 is a top view of an anti-clogging drainage device provided by the present invention;
01 wall rear slope in the figure; 1 wall structure, 2 inner cavity, 3 water collector, 4 drain hole, 5 supporting component, 6 reservoir, 7 siphon component, 8 sedimentation tank, 9 base, 91 wall base, 92 anti-slip key, 93 wall toe, 10 bearing wall, 11 triangle reinforcing structure, 12 water channel, 13 access door, 14 waterproof layer, 15 water filtering grate, 16 shutoff valve, 17 telescopic clamp, 18 screw pump, 19 drain control valve, a1 rubber layer, a2 filter element, a3 shell, a4 through hole, a5 cone, b1 geotextile, b2 coarse sand, b3 broken stone and b4 sand gravel.
Detailed Description
Other advantages and advantages of the present invention will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 6 together, a retaining wall structure according to the present invention will now be described.
According to the retaining wall structure disclosed by the embodiment of the invention, a wall body is buried under a soil layer of a slope surface 01 behind the wall, a water collector 3 is arranged at the top end of the wall body structure 1, an inner cavity 2 communicated with the water collector 3 is arranged in the wall body structure 1, a bearing wall surface 10 is arranged on the front side of the wall body structure 1, a plurality of drain holes 4 are formed in the bearing wall surface 10, and the drain holes 4 are communicated with the inner cavity 2 so as to guide groundwater into a sedimentation tank 8. The bottom of wall structure 1 and 9 integrated into one piece of base, the inside sedimentation tank 8 that is provided with of base 9, sedimentation tank 8 are located inner chamber 2 bottom, and wash port 4 and water collector 3 all drain to sedimentation tank 8 to silt that contains in ponding can deposit the accumulation in sedimentation tank 8. On the basis, the top of the supporting member 5 is propped against the bearing wall surface 10, the bottom of the supporting member is obliquely arranged on the siphon member 7, the siphon member 7 is fixedly arranged on the side surface of the sedimentation tank 8, the sedimentation tank 8 is communicated with the reservoir 6 through the siphon member 7, wherein a plurality of drainage holes 4 are used for discharging groundwater below the slope 01 behind the wall, the water collector 3 is used for collecting rainwater left on the slope 01 behind the wall, all water flows collected by the two water collectors enter the sedimentation tank, and sediment contained in the water is settled in the tank to prevent the problem of blockage of a water supply system. When the water level in the sedimentation tank 8 is higher than the siphon member 7, the siphon member 7 can guide the clean water at the upper part of the sedimentation tank 8 into the reservoir 6 and discharge the clean water to the main municipal drainage pipe, and the slurry at the lower part of the sedimentation tank 8 is discharged from the inner cavity 2 through the screw pump 18.
In some embodiments, the supporting member 5 may adopt a structure as shown in fig. 1 and 2, wherein the supporting member 5 is a hanging ladder which is obliquely arranged and plays a role in supporting, the drain hole 4 is internally provided with a detachable anti-blocking drainage device, and the position of the drain hole 4 can be reached through the hanging ladder for replacement during manual installation, so that the supporting member 5 can play a role in supporting and can also play a role in connecting the installation position.
In some embodiments, as shown in fig. 1, the base 9 is integrally cast and structurally comprises a wall base 91, the top of the wall base is integrally connected with the wall structure 1, an anti-slip key 92 is arranged at the bottom of the wall base, a reservoir 6 is arranged above the anti-slip key 92, and water bodies accumulated in the reservoir 6 are automatically controlled by a siphon member 7 through a drainage control valve 19 and then discharged into a municipal drainage main pipe. In addition, the bottom of the toe 93 is flush with the bottom of the wall base 91 and integrally connected with the front end of the wall base 91, thereby improving the stability of the wall.
In this embodiment, as shown in fig. 2, a triangular reinforcing structure 11 is disposed at the connection position between the base 9 and the wall structure 1, a water channel 12 communicated with the sedimentation tank 8 is disposed at the top of the triangular reinforcing structure 11, and the water channel 12 is located right below the water collector 3, so that the structural strength of the wall structure 1 can be effectively enhanced, and meanwhile, rainwater collected by the water collector 3 can be drained.
In one embodiment provided by the invention, the position of the front side of the wall structure 1, which leaks out of the ground, is provided with the access door 13 in a sealing way, the access shutoff valve 16 is controlled to be in a closed state before the overhaul, in case of emergency, the access door 13 is closed to prevent the accumulated water from leaking out in a large scale, meanwhile, the shutoff valve 16 is in an open state to rapidly empty the accumulated water in the reservoir, then the access door 13 is opened, an maintainer enters the inner cavity 2 to check whether the anti-blocking drainage device is blocked, if the anti-blocking drainage device is blocked, the newly produced anti-blocking drainage device is adopted for replacement, all the valves are restored to a normal operation condition after the overhaul is completed, and the water is strictly forbidden to enter the interior of the drainage type retaining wall structure for overhaul.
In one embodiment of the invention, the upper end of the water collector 3 is provided with a water filtering grate 15, the bottom of the water collector 3 is paved with a reverse filtering body, the bottom of the water collector 3 is reserved with a hole, the water collector is communicated with the sedimentation tank 8 through a drain pipe, and waterproof layers 14 are arranged on the sedimentation tank 8 and the inner wall of the inner cavity 2.
In some embodiments, as shown in fig. 3, a stop valve 16 is arranged on the siphon member 7, an anti-blocking device is arranged in the water drain hole 4 for filtering sediment, a telescopic clamp 17 for fixing the anti-blocking device is arranged in the water drain hole 4, one end of the siphon member 7 is communicated with the sedimentation tank 8, the other end of the siphon member 7 is communicated with the reservoir 6, a port of the siphon member 7 structurally positioned in the sedimentation tank 8 is higher than a port of the reservoir 6, and therefore when the water level of the sedimentation tank 8 is higher than the port of the sedimentation tank 8 of the siphon member 7, clean water above the sedimentation tank 8 can be discharged into the reservoir 6 by opening the stop valve 16.
Based on the same inventive concept, please refer to fig. 4 to 6 together, the present invention discloses an anti-blocking drainage device, which is applied to the retaining wall as proposed above, comprising:
A rubber layer a1 is arranged on the outer side of the shell a3, a filter element a2 is arranged in the shell, and through holes a4 communicated with the filter element a2 are formed in the front end and the rear end;
Alternatively, in the present embodiment, a drainage body is installed, the tail portion of which is connected to the front end of the housing a3, and the side portion is provided with a water permeable hole communicating with the through hole a 4.
In one embodiment, the filter element a2 includes geotextile b1, medium coarse sand b2, crushed stone b3, and sand gravel b4, and the geotextile b1, medium coarse sand b2, crushed stone b3, and sand gravel b4 are disposed within the casing a3 along a length direction of the casing a 3.
Based on the same inventive concept, the invention discloses a construction method, which is applied to the retaining wall or the anti-blocking drainage device, and comprises the following steps:
1. Foundation trench excavation, setting up of templates, binding of reinforcing steel bars, embedding of a communication pipe and embedded parts required by installation of a drainage control valve 19, pouring of concrete, pouring of the base 9 and the wall structure 1 is completed, and meanwhile, vertical reinforcing steel bars are reserved at the top of the base 9 so that the water collector 3 is integrally connected with the inner cavity 2;
2. Setting up a template, binding reinforcing steel bars, reserving and installing a drain hole 4 of an anti-blocking drainage device, reserving and embedding holes and embedded parts of an installation access door 13, embedding the embedded parts of the installation telescopic clamp 17, pouring concrete, and finishing pouring of the water collector, wherein vertical reinforcing steel bars are reserved at the top of the water collector 3 and are integrally connected with the water collector 3 through a wall structure 1;
3. building a template, binding reinforced concrete to finish pouring of the wall structure 1, and after the integral drainage type retaining wall structure reaches the design strength, removing the template and paving geotextile from bottom to top on the back side of the structure wall;
4. A constructor enters from the access door 13 to overhaul the shutoff valve 16, then the telescopic clamp 17 is controlled to be in a contracted state, the anti-blocking drainage device is arranged in the drainage hole 4, then the telescopic clamp 17 is controlled to be in an extended state, the anti-blocking drainage device is supported, and finally the access door 13 is installed;
5. filling soil on two sides of the layered symmetrical backfill drainage type retaining wall structure, rolling and tamping until the wall is backfilled to the bottom of the road surface before backfilling, continuously filling soil after backfilling the wall in layers, and rolling and tamping;
6. after all backfilling is finished, the pavement structure in front of the wall is restored according to the original pavement structure design;
7. And installing a water filtering grate 15 on the water collector to finish the construction of the drainage type retaining wall structure of the replaceable anti-blocking device.
The invention relates to a retaining wall, an anti-blocking drainage device and a construction method, and the working principle is as follows:
The runoff of the slope 01 behind the retaining wall structure wall is collected to the slope toe in the heavy rain period, the runoff is collected by the water collector 3, filtered by the inverted filter and quickly collected in the sedimentation tank 8 by the drain pipe, meanwhile, the groundwater in the earth filled behind the wall lifted by rainfall can be discharged into the sedimentation tank 8 by the anti-blocking drainage device after being filtered, the water body accumulated in the sedimentation tank 8 is deposited, sediment descends, the upper clear water enters the reservoir 6 through the siphon member 7 and finally is discharged into the municipal drainage main pipe, wherein the shutoff valve 16 can automatically control the opening and closing degree of the valve according to the water level in the sedimentation tank 8 and the principle of retaining water as much as possible on the premise of meeting the bearing capacity of the foundation, in a non-rainy season, the shutoff valve 16 is kept open, the water level in the sedimentation tank 8 is reduced, and the slurry deposited in the sedimentation tank 8 is discharged outwards by the screw pump 18, so that the problem of water level rising in the sedimentation tank 8 due to excessive sediment is avoided, and the whole inner cavity can be accommodated by sealing the maintenance door when the volume of the sedimentation tank 8 is insufficient.
Therefore, firstly, the runoff and the groundwater of the slope 01 behind the wall can be prevented from being directly discharged to the road surface, so that the risk of accumulated water on the road is reduced, secondly, the groundwater level behind the wall can be quickly reduced, the safety stability of the retaining wall structure is improved, thirdly, the dead weight of the retaining wall structure can be increased by the water body accumulated in the sedimentation tank 8 and the water reservoir 6, the anti-slip and anti-tilting capacity of the retaining wall structure is further improved, fourthly, the hazard effect of the groundwater in the heavy rain period on the safety of the retaining wall structure is converted into the safety of the retaining wall structure, and fifthly, the anti-blocking drainage device can be more yellow at any time, so that the drainage structure of the retaining wall is prevented from being blocked.
While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (5)
1. A construction method of a retaining wall, characterized in that a wall body is buried under a soil layer of a slope (01) behind the wall, the retaining wall comprising:
The wall body structure (1) is provided with a water collector (3), an inner cavity (2) communicated with the water collector (3) is arranged in the wall body structure, a bearing wall surface (10) is arranged on the front side of the wall body structure, a plurality of drain holes (4) are formed in the bearing wall surface (10), and the drain holes (4) are communicated with the inner cavity (2);
The base (9) is integrally formed with the wall body structure (1) at the top, a sedimentation tank (8) is arranged in the base, the sedimentation tank (8) is positioned at the bottom of the inner cavity (2), and the drainage holes (4) and the water collector (3) drain water to the sedimentation tank (8);
the top of the supporting member (5) is propped against the bearing wall surface (10), the bottom of the supporting member is obliquely arranged on the siphon member (7), the siphon member (7) is fixedly arranged on the side surface of the sedimentation tank (8), and the sedimentation tank (8) is communicated with the reservoir (6) through the siphon member (7);
The water channel (12) communicated with the sedimentation tank (8) is arranged at the top of the triangular reinforcing structure (11), and the water channel (12) is positioned right below the water collector (3) so as to drain rainwater collected by the water collector (3);
The drainage device comprises a plurality of drainage holes (4), a water collector (3) and a screw pump (18), wherein the drainage holes are used for draining groundwater below a slope (01) behind a wall, the water collector (3) is used for collecting rainwater flowing down the slope (01) behind the wall, all the collected water flows enter a sedimentation tank (8) for sedimentation, when the water level in the sedimentation tank (8) is higher than that of the siphon member (7), the siphon member (7) can guide clear water at the upper part of the sedimentation tank (8) into a reservoir (6) and discharge the clear water into a municipal drainage main pipe, a drainage control valve (19) is arranged between the reservoir (6) and the municipal drainage main pipe, and mud at the lower part of the sedimentation tank (8) is discharged out of an inner cavity (2) through the screw pump (18);
An access door (13) is arranged at the position of the rear side of the wall body structure (1) which leaks out of the ground in a sealing way, a water filtering grate (15) is arranged at the upper end of the water collector (3), and waterproof layers (14) are arranged on the inner walls of the inner cavity (2) and the sedimentation tank (8);
A shutoff valve (16) is arranged on the siphon member (7), an anti-blocking drainage device is arranged in the drainage hole (4) and used for filtering sediment, and a telescopic clamp (17) used for fixing the anti-blocking drainage device is arranged in the drainage hole (4);
the construction method of the retaining wall comprises the following steps:
1. Foundation trench excavation, formwork erection and reinforcement binding, wherein a drain hole (4) for installing an anti-blocking drainage device is reserved, holes of an access door (13) and embedded parts for embedding the access door (13) are reserved, a telescopic clamp (17) is embedded, embedded communication pipes and embedded parts required by installing a drainage control valve (19) are embedded, concrete is poured, pouring of a base (9) and a wall structure (1) is completed, and meanwhile, vertical reinforcement is reserved at the top of the wall structure (1) so that a water collector (3) is integrally connected with an inner cavity (2);
2. Setting up a template, binding steel bars, pouring concrete, and finishing pouring of the water collector (3), wherein vertical steel bars are reserved at the bottom of the water collector (3) to strengthen the structural strength, and the wall structure (1) is integrally connected with the water collector (3);
3. After the integral retaining wall structure reaches the design strength, removing the template, and paving geotechnical cloth on the back side of the wall structure (1) from bottom to top;
4. a constructor enters from a hole of an access door (13) to overhaul a shutoff valve (16), then controls a telescopic clamp (17) to enable the shutoff valve to be in a contracted state, loads the anti-blocking drainage device into a drainage hole (4), controls the telescopic clamp (17) to enable the anti-blocking drainage device to be in an extended state, supports the anti-blocking drainage device, and finally installs the access door (13);
5. Filling soil on two sides of the layered symmetrical backfill retaining wall structure, rolling and tamping until the wall is backfilled to the bottom of the road surface, continuously filling soil after the wall is backfilled in a layered manner, and rolling and tamping;
6. after all backfilling is finished, the pavement structure in front of the wall is restored according to the original pavement structure design;
7. a water filtering grate (15) is arranged on the water collector (3) to finish the construction of the drainage type retaining wall structure of the replaceable anti-blocking drainage device.
2. A construction method of a retaining wall according to claim 1, characterized in that the supporting member (5) is a suspension ladder arranged obliquely and serving as a support.
3. A method of constructing a retaining wall according to claim 1, wherein the foundation (9) comprises:
The wall foundation (91) is integrally connected with the wall structure (1) at the top, an anti-slip key (92) is arranged at the bottom, and a reservoir (6) is arranged above the anti-slip key (92);
and the bottom of the wall toe (93) is flush with the bottom of the wall base (91), and is integrally connected with the front end of the wall base (91).
4. The method of constructing a retaining wall according to claim 1, wherein the anti-blocking drainage device comprises:
A rubber layer (a 1) is arranged on the outer side of the shell (a 3), a filter element (a 2) is arranged in the shell, and through holes (a 4) communicated with the filter element (a 2) are formed in the front end and the rear end of the shell;
The tail part of the conical body (a 5) is connected with the front end of the shell, and the side part of the conical body is provided with a water permeable hole communicated with the through hole (a 4).
5. A construction method of a retaining wall according to claim 4, wherein the filter element (a 2) comprises geotextile (b 1), medium coarse sand (b 2), crushed stone (b 3) and sand gravel (b 4), and the geotextile (b 1), medium coarse sand (b 2), crushed stone (b 3) and sand gravel (b 4) are arranged in the casing (a 3) along the length direction of the casing (a 3).
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201272717Y (en) * | 2008-09-11 | 2009-07-15 | 北京科技大学 | Intermittent unpowered vertical flow type constructed wetland sewage treatment system |
| CN210031902U (en) * | 2019-04-22 | 2020-02-07 | 米晶芳 | Hydraulic engineering retaining wall |
| CN213329099U (en) * | 2020-07-29 | 2021-06-01 | 长江勘测规划设计研究有限责任公司 | A back-conducting drainage and back-filtering structure of road retaining wall |
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| CN207348086U (en) * | 2017-09-29 | 2018-05-11 | 朱芝健 | A kind of retaining wall for hydraulic engineering |
| CN211368772U (en) * | 2019-12-17 | 2020-08-28 | 中交四公局第六工程有限公司 | An anti-clogging type retaining wall structure |
| CN217758928U (en) * | 2022-08-12 | 2022-11-08 | 青海鼎世地矿有限公司 | Retaining wall structure |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201272717Y (en) * | 2008-09-11 | 2009-07-15 | 北京科技大学 | Intermittent unpowered vertical flow type constructed wetland sewage treatment system |
| CN210031902U (en) * | 2019-04-22 | 2020-02-07 | 米晶芳 | Hydraulic engineering retaining wall |
| CN213329099U (en) * | 2020-07-29 | 2021-06-01 | 长江勘测规划设计研究有限责任公司 | A back-conducting drainage and back-filtering structure of road retaining wall |
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