A combined landscape prefabricated drainage ditch system based on BIM technology and its construction technology

Abstract

The present invention relates to a combined landscape prefabricated drainage ditch system based on BIM technology and a construction process thereof, belonging to the field of drainage technology, and specifically comprising an L-shaped support and a building wall installed on the L-shaped support, wherein a concrete cushion layer is arranged on the outer side of the L-shaped support, a prefabricated concrete drainage ditch is arranged on the concrete cushion layer, the prefabricated concrete drainage ditch is arranged along the length direction of the building wall, a water dispersion slope is arranged on one side of the concrete cushion layer, a plurality of water guide grooves are also arranged on the water dispersion slope, a gravel layer is arranged on the gravel layer, a geotextile layer is arranged on the gravel layer, a backfill soil layer and a landscape layer are arranged on the geotextile layer, and the present invention solves the problems of unsightly appearance, slow construction progress, backward construction technology, slurry leakage of cast-in-place expansion molds, high cost, etc. caused by traditional building water dispersion and cast-in-place drainage ditches.

Description

Technical Field

[0001] The invention relates to a combined landscape prefabricated drainage ditch system based on BIM technology and a construction process thereof, belonging to the technical field of drainage. Background Art

[0002] In the process of traditional construction, building scattered water drainage is inevitable. The traditional drainage construction technology usually adopts open scattered water and existing excavated foundation pit formwork to cast drainage ditch. Its more obvious disadvantages are backward construction technology, slow construction progress, too many external factors affect it, and open scattered water is somewhat unsightly and cannot be better matched and integrated with the green plants around the building.

[0003] With the development of the times, the construction field has continuously made innovations and breakthroughs. Prefabricated buildings have gradually become a hot spot in the current construction field. They adopt standardized design, BIM deepening technology, factory production, modular construction, and intelligent information management. They are the industrial representatives of modern buildings. How to use BIM technology to construct drainage ditches is a technical problem that needs to be solved urgently. Summary of the invention

[0004] In order to solve the technical problems existing in the prior art, the present invention provides a combined landscape prefabricated drainage ditch system and its construction process based on BIM technology, which solves the problems of unsightly traditional scattered water and cast-in-place drainage ditches in buildings, slow construction progress, backward construction technology, cast-in-place mold expansion leakage, high cost, etc.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is a combined landscape prefabricated drainage ditch system based on BIM technology, including an L-shaped support and a building wall installed on the L-shaped support, a concrete cushion layer is arranged on the outer side of the L-shaped support, a precast concrete drainage ditch is installed on the concrete cushion layer, the precast concrete drainage ditch is arranged along the length direction of the building wall, and the top of the precast concrete drainage ditch is flush with the top of the L-shaped support, a dispersion slope is arranged on one side of the concrete cushion layer, a plurality of water guide grooves are also arranged on the dispersion slope, a gravel layer is arranged on the dispersion slope, the top elevation of the gravel layer is consistent with the top elevation of the concrete cushion layer, a geotextile layer is arranged on the gravel layer, and a backfill soil layer and a landscape layer are arranged on the geotextile layer.

[0006] Preferably, the precast concrete drainage ditch is mainly composed of a plurality of precast concrete grooves, and slots and protrusions spliced ​​together are provided at both ends of the precast concrete groove. The precast concrete groove is narrow at the bottom and wide at the top, and a precast concrete cover plate is installed at the bottom of the wider groove, and a plurality of long water seepage holes are provided on the precast concrete cover plate.

[0007] Preferably, a waterproof mortar layer is provided between the precast concrete drainage ditch and the concrete cushion layer, a pebble layer is provided on the top of the precast concrete cover plate, and a plurality of lifting holes are provided on both sides of the precast concrete drainage ditch.

[0008] Preferably, the water dispersion slope is mainly composed of a first slope and a second slope, the first slope and the second slope are arranged in sequence from top to bottom, and the angle between the first slope and the horizontal plane is 15°, and the angle between the second slope and the horizontal plane is 5°.

[0009] Preferably, the horizontal plane projection length of the water dispersion slope is 1000 mm.

[0010] Preferably, a drainage slope is provided on one side of the concrete cushion layer below the L-shaped support, and the angle between the drainage slope and the horizontal plane is 30°.

[0011] A construction process of a combined landscape prefabricated drainage ditch system based on BIM technology is carried out according to the following steps:

[0012] a. Make drainage ditches. Use BIM software to build the original structure model. Then use the collision detection algorithm to perform collision detection between the automatically adjustable parameterized prefabricated drainage ditch model and the original structure model, so as to automatically adjust the length, width and height of the prefabricated drainage ditch and generate a suitable landscape prefabricated drainage ditch. Then use BIM software to simulate the construction of the combined landscape prefabricated drainage ditch. By simulating the rainy and snowy environment, analyze whether the drainage volume of the combined landscape prefabricated drainage ditch meets the drainage requirements of the structure and the water permeability of the joints. Finally, the prefabricated concrete drainage ditch is made.

[0013] b. Excavate and compact the original soil outside the building wall, lay a 100mm thick concrete cushion, set a 30° slope concrete cushion at the rear end of the concrete cushion, set a 1000mm projected water spill slope at the front end of the concrete cushion, and set a water diversion trough on the water spill slope; the width and height of the water diversion trough are 50mm×50mm, and are set at intervals of 500mm;

[0014] c. Lay a gravel layer on the water dispersion slope. The top elevation of the gravel layer should be consistent with the top elevation of the concrete cushion layer.

[0015] A layer of geotextile is laid on top of the stone layer;

[0016] d. Install the concrete drainage ditch, apply a layer of waterproof mortar at the connection and bottom of the drainage ditch, and use cement mortar to level the slope of 0.3% at the bottom of the drainage ditch;

[0017] e. Place precast concrete cover slabs and pebbles, backfill with soil and plant greenery.

[0018] Compared with the prior art, the present invention has the following technical effects.

[0019] (1) The model established by BIM software is used for collision detection to find the intersection, and the dimension processing drawing of the combined landscape prefabricated drainage ditch that meets the site is automatically output and quickly produced for processing and production in the component factory.

[0020] (2) Through simulation analysis, quickly calculate whether the drainage capacity of the combined landscape prefabricated drainage ditch meets the drainage requirements.

[0021] Quantity requirements and testing of the construction process and water seepage performance of prefabricated drainage ditches.

[0022] (3) Prefabricated drainage ditches are produced in a standardized manner (±5mm) and are adjustable in length (500mm~2000mm)

[0023] The landscape groove is 210mm adjustable, which is customized and flexible.

[0024] (4) Prefabricated drainage ditch construction is safe, efficient and high-quality, which can better improve the project

[0025] Progress, shorten construction period, save costs and reduce pollution. Traditional construction technology can eliminate open water dispersion and adopt hidden water dispersion. The drainage ditch has landscape effect, saves space, increases aesthetics and increases green area. The prefabricated drainage ditch can be directly replaced by component replacement in the later maintenance, which is convenient for maintenance and repair.

[0026] (5) The design of underground cushion and hidden water belt groove can solve the problem of drainage ditch seepage, making various situations

[0027] All the seepage water below is discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention.

[0029] Figure 2 It is a structural schematic diagram of the precast concrete drainage ditch in the present invention.

[0030] Figure 3 It is a structural schematic diagram of the prefabricated concrete groove in the present invention.

[0031] Figure 4 for Figure 3 Side view of.

[0032] Figure 5 for Figure 3 Top view of the . DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] like Figures 1 to 5 As shown, a combined landscape prefabricated drainage ditch system based on BIM technology includes an L-shaped support 1 and a building wall 2 installed on the L-shaped support. A concrete cushion layer 3 is arranged on the outside of the L-shaped support 1. A drainage slope 22 is arranged on one side of the concrete cushion layer 3 located below the L-shaped support. The angle between the drainage slope 22 and the horizontal plane is 30°. The drainage slope 22 can avoid water accumulation at the L-shaped support, resulting in the collapse of the building wall and other problems. A precast concrete drainage ditch 5 is arranged on the concrete cushion layer 3. The precast concrete drainage ditch 5 is arranged along the length direction of the building wall. The top of the precast concrete drainage ditch 5 is flush with the top of the L-shaped support 1. A water dispersion slope 6 is arranged on one side of the concrete cushion layer 3. The water dispersion slope 6 is mainly composed of a first slope 20 and a second slope 21. The first slope 20 and the second slope 21 are arranged in sequence from top to bottom, and the angle between the first slope 20 and the horizontal plane is 15°, and the angle between the second slope 21 and the horizontal plane is 5°. The horizontal plane projection length of the water dispersion slope 6 is 1000 mm. A plurality of water guide grooves 7 are also arranged on the water dispersion slope 6, a gravel layer 8 is arranged on the water dispersion slope 6, the top elevation of the gravel layer 8 is consistent with the top elevation of the concrete cushion layer 3, a geotextile layer 9 is arranged on the gravel layer 8, and a backfill soil layer 10 and a landscape layer 11 are arranged on the geotextile layer 9.

[0035] The precast concrete drainage ditch 5 is mainly composed of a plurality of precast concrete grooves 12, and slots 13 and protrusions 14 are provided at both ends of the precast concrete grooves 12. The precast concrete grooves 12 are narrow at the bottom and wide at the top, and a precast concrete cover plate 15 is installed at the bottom of the wider groove, and a plurality of long water seepage holes 16 are provided on the precast concrete cover plate 15. A waterproof mortar layer 17 is also provided between the precast concrete drainage ditch 5 and the concrete cushion layer, a pebble layer 18 is also provided on the top of the precast concrete cover plate 15, and a plurality of hoisting holes 19 are also provided on both sides of the precast concrete drainage ditch 5.

[0036] In the present invention, the BIM software is used to establish the original structure model and the automatically adjustable parameterized prefabricated drainage ditch model is collided with it, so that the length, width and height of the prefabricated drainage ditch can be adaptively changed according to the changes of the original structure, and a component processing drawing and BOM list based on BIM technology are formed for the production, processing and installation of components. The height of the generated combined landscape prefabricated drainage ditch component is 610mm, the length is adaptively adjustable, the upper landscape part is 210mm high and 500mm wide, the lower drainage part is 400mm high and 400mm wide, and the wall thickness is 100mm. The rainwater grate adopts the size of 300mm×500mm×60mm. The groove of the landscape part above the prefabricated drainage ditch component is 210mm high and 500mm wide. It can be adjusted according to the thickness of the rainwater grate and the thickness of the pebbles. It can be used for drainage of ordinary buildings, municipal roads, etc., and can meet temporary drainage or permanent drainage. It can be used for dark drainage or open drainage. Placing landscape pebbles on the top can also meet the "open drainage + dark drainage" method. The "wide at the top and narrow at the bottom" shape is adopted. The width of the lower drainage part is 400mm, the height is 400mm, and the wall thickness is 100mm, which can meet the nesting of DN100mm~300mm drainage pipes. There are 30mm×50mm grooves and protrusions at the front and rear ends of the prefabricated drainage ditch components, and they are installed and spliced ​​by bite connection. It is cast in one time with concrete, and has the advantages of prefabricated building components. No complex processing is required for on-site construction, only interlocking splicing is required. It can be installed in combination with rainwater grates, landscape pebbles, etc., which can effectively improve the construction progress, shorten the project period, reduce construction pollution, significantly improve construction efficiency, and make reasonable use of land resources. Four hoisting holes are reserved on both sides of the upper end, with a hoisting hole radius of 30mm, a center distance of 50mm from the side, and a distance of 300mm from the end, which is convenient for on-site hoisting construction.

[0037] The specific construction process is to follow the steps below:

[0038] a. Make drainage ditches. Use BIM software to build the original structure model. Then use the collision detection algorithm to perform collision detection between the automatically adjustable parameterized prefabricated drainage ditch model and the original structure model, so as to automatically adjust the length, width and height of the prefabricated drainage ditch and generate a suitable landscape prefabricated drainage ditch. Then use BIM software to simulate the construction of the combined landscape prefabricated drainage ditch. By simulating the rainy and snowy environment, analyze whether the drainage volume of the combined landscape prefabricated drainage ditch meets the drainage requirements of the structure and the water permeability of the joints. Finally, the concrete drainage ditch is made.

[0039] b. Excavate and compact the original soil outside the building wall, lay a 100mm thick concrete cushion, set a 30° slope concrete cushion at the rear end of the concrete cushion, set a 1000mm projected slope at the front end of the concrete cushion, and set a water channel on the concrete cushion; the width and height of the water channel are 50mm×50mm, and are set at intervals of 500mm;

[0040] c. Lay a gravel layer on the water dispersion slope. The top elevation of the gravel layer should be consistent with the top elevation of the concrete cushion layer.

[0041] A layer of geotextile is laid on top of the stone layer;

[0042] d. Install the concrete drainage ditch, apply a layer of waterproof mortar at the connection and bottom of the drainage ditch, and use cement mortar to level the slope of 0.3% at the bottom of the drainage ditch;

[0043] e. Place precast concrete cover slabs and pebbles, backfill with soil and plant greenery.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. A combined landscape prefabricated drainage ditch system based on BIM technology, comprising an L-shaped support and a building wall installed on the L-shaped support, characterized in that: A concrete cushion is provided on the outer side of the L-shaped support, a precast concrete drainage ditch is installed on the concrete cushion, the precast concrete drainage ditch is arranged along the length direction of the building wall, and the top of the precast concrete drainage ditch is flush with the top of the L-shaped support, a water dispersion slope is provided on one side of the concrete cushion, a plurality of water guide grooves are also provided on the water dispersion slope, a gravel layer is provided on the water dispersion slope, the top elevation of the gravel layer is consistent with the top elevation of the concrete cushion, a geotextile layer is provided on the gravel layer, and a backfill soil layer and a landscape layer are provided on the geotextile layer; The precast concrete drainage ditch is mainly composed of a plurality of precast concrete grooves, and slots and protrusions that are spliced ​​with each other are arranged at both ends of the precast concrete groove. The precast concrete groove is narrow at the bottom and wide at the top, and a precast concrete cover plate is installed at the bottom of the wider groove, and a plurality of long water seepage holes are arranged on the precast concrete cover plate; A waterproof mortar layer is also provided between the precast concrete drainage ditch and the concrete cushion layer, a pebble layer is also provided on the top of the precast concrete cover plate, and a plurality of hoisting holes are also provided on both sides of the precast concrete drainage ditch; The water dispersion slope is mainly composed of a first slope and a second slope, the first slope and the second slope are arranged in sequence from top to bottom, and the angle between the first slope and the horizontal plane is 15°, and the angle between the second slope and the horizontal plane is 5°; A drainage slope is provided on one side of the concrete cushion layer below the L-shaped support, and the angle between the drainage slope and the horizontal plane is 30°.

2. According to claim 1, a combined landscape prefabricated drainage ditch system based on BIM technology is characterized by: The horizontal plane projection length of the water dispersion slope is 1000 mm.

3. A construction process of a combined landscape prefabricated drainage ditch system based on BIM technology as described in any one of claims 1 or 2, characterized in that: Follow the steps below, a. Make drainage ditches. Use BIM software to build the original structure model. Then use the collision detection algorithm to perform collision detection between the automatically adjustable parameterized prefabricated drainage ditch model and the original structure model, so as to automatically adjust the length, width and height of the prefabricated drainage ditch and generate a suitable landscape prefabricated drainage ditch. Then use BIM software to simulate the construction of the combined landscape prefabricated drainage ditch. By simulating the rainy and snowy environment, analyze whether the drainage volume of the combined landscape prefabricated drainage ditch meets the drainage requirements of the structure and the water permeability of the joints. Finally, the prefabricated concrete drainage ditch is made. b. Excavate and compact the original soil outside the building wall, lay a 100mm thick concrete cushion, set a 30° slope concrete cushion at the rear end of the concrete cushion, set a 1000mm projected slope at the front end of the concrete cushion, and set a water diversion trough on the water diversion slope; the width and height of the water diversion trough are 50mm×50mm, and are set at intervals of 500mm; c. Lay a gravel layer on the water dispersion slope. The top elevation of the gravel layer should be consistent with the top elevation of the concrete cushion layer. A layer of geotextile is laid on top of the stone layer; d. Install the concrete drainage ditch, apply a layer of waterproof mortar at the connection and bottom of the drainage ditch, and use cement mortar to level the slope of 0.3% at the bottom of the drainage ditch; e. Place precast concrete cover slabs and pebbles, backfill with soil and plant greenery.

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