CN215977132U - Assembled regeneration waterproof concrete drainage canal mechanism and channel - Google Patents

Assembled regeneration waterproof concrete drainage canal mechanism and channel Download PDF

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CN215977132U
CN215977132U CN202122396961.7U CN202122396961U CN215977132U CN 215977132 U CN215977132 U CN 215977132U CN 202122396961 U CN202122396961 U CN 202122396961U CN 215977132 U CN215977132 U CN 215977132U
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channel
waterproof concrete
slab
drainage
sheet layer
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肖建庄
邓琪
段珍华
吕振源
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Tongji University
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Tongji University
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Abstract

The utility model provides an assembled regenerated waterproof concrete drainage channel mechanism which is of an open groove structure and comprises a plurality of plate layer units from top to bottom, wherein the plate layer units are sequentially provided with a first plate layer and a second plate layer from top to bottom, a first impermeable layer is arranged between the first plate layer and the second plate layer, a plurality of connecting grooves are formed in two ends of the first plate layer along the channel direction, and a plurality of first bolt holes are formed in the second plate layer below the connecting grooves. The utility model has less field wet operation, can reserve the channel joint, improves the construction efficiency, solves the problem of disposing the waste concrete, saves the sandstone resource, and achieves the purposes of resource recycling and environment protection on the premise of ensuring the construction quality.

Description

Assembled regeneration waterproof concrete drainage canal mechanism and channel
Technical Field
The utility model relates to the field of farmland channels, in particular to an assembled regenerated waterproof concrete drainage channel mechanism and a channel.
Background
At present, in China, new rural construction plays a very important role in the main modernization construction of the society. In the construction of new rural areas, the demolition work of old buildings is an indispensable link, and in the demolition work, the treatment mode of construction waste such as waste concrete is mainly stacking and landfill, so that a large amount of waste concrete not only occupies precious land resources, but also causes a series of social problems such as environmental protection and ecology. Correspondingly, the continuous exploitation of a large amount of natural sandstone aggregate leads to the exhaustion of sandstone resources in part of regions, and the long-distance transportation of materials such as sandstone aggregate is required, so that the cost is continuously increased, and the environmental pollution is also aggravated. The technology of recycling a large amount of waste concrete, i.e. recycled concrete, is currently considered to be an effective measure for solving the problem of waste concrete treatment. The waste concrete can obtain the recycled aggregate through crushing, cleaning and grading and is matched according to a certain proportion, the recycled aggregate waterproof concrete is prepared, the problem of treatment of the waste concrete is solved, the sandstone resource is saved, and the purposes of resource recycling and environment protection are achieved on the premise of ensuring the construction quality.
In the construction of new rural areas, the modern agricultural production cannot be separated from scientific and effective water conservancy facilities. Water is an indispensable element for crop growth, the longitudinal and transverse ditches of the farmland not only ensure the source of irrigation water for crops in the farmland, but also have the functions of draining water and discharging flood, and the ditches play an important role in agricultural production. In the current engineering practice, the drainage channel usually adopts a cast-in-place waterproof concrete groove type channel body structure, and the defect of large field wet operation engineering quantity is caused, so that the construction quality is difficult to ensure, the cast waterproof concrete channel is seriously broken, the plate connection points are separated and deformed, and the construction period is longer. The conventional assembly type drainage channel mainly comprises a groove body butt joint channel, and has the defects that the types of parts for forming the channel are various, the assembly is complex, the construction efficiency is low, slope plates on two sides are easy to break and leak water, and the maintenance difficulty is high.
SUMMERY OF THE UTILITY MODEL
In view of the above disadvantages of the prior art, an object of the present invention is to provide an assembled recycled waterproof concrete drainage channel mechanism and a channel, which are used to solve the problems in the prior art that the construction quality is difficult to ensure due to a large amount of wet work on site, the poured waterproof concrete channel is seriously broken, the connection points of the plates are separated and deformed, the construction period is long, the types of parts forming the channel are many, the assembly is complicated, the construction efficiency is low, the slope plates on the two sides are easily broken and leak water, and the maintenance difficulty is large.
In order to achieve the above and other related objects, an aspect of the present invention provides an assembled recycled waterproof concrete drainage channel mechanism, which has an open groove structure, and includes a plurality of slab units from top to bottom, the slab units are sequentially provided with a first slab and a second slab from top to bottom, a first impermeable layer is provided between the first slab and the second slab, a plurality of connecting grooves are provided at two ends of the first slab along a channel direction, and a plurality of first keyhole are provided on the second slab below the connecting grooves.
Preferably, the drainage channel mechanism is provided with a post-cast strip, and the post-cast strip is formed by retracting the first slab relative to the second slab along the channel direction.
More preferably, the drainage channel mechanism is in an open type trapezoidal groove structure, and the first bolt hole penetrates through the second plate layer and the first impermeable layer.
More preferably, the thickness of the first and second slabs may be 100mm-200mm, and the length of the first and second slabs along the channel direction may be 2000-3000 mm.
More preferably, the connecting groove is circular arc-shaped.
Preferably, the first barrier layer material is a SBC waterproof roll with a thickness of 1-2 mm.
More preferably, the material of the anti-seepage layer is a SBC waterproof coiled material with the thickness of 1.5mm, the execution standard GB18242-2008 of the SBC waterproof coiled material is that styrene-butadiene-styrene (SBS) rubber modified asphalt is used as a coating, glass fiber felt, polyester felt and glass fiber reinforced polyester felt are used as a base, and the two surfaces of the base are coated with the isolation material to form the waterproof material with excellent performance, so that the waterproof material has the advantages of heat resistance, cold resistance, corrosion resistance, ageing resistance, good thermoplasticity, large tensile strength, high elongation, strong tear resistance and the like.
Preferably, a reinforcing mesh is arranged in the first slab layer and the second slab layer.
Preferably, the slot holes of the connecting slots are retracted relative to the end face of the first slab, a space is kept between adjacent connecting slots, and a plurality of reinforcing mesh overhanging sections are arranged on the slot holes.
Preferably, the slab unit extends outward along both ends perpendicular to the channel direction and the outward extending portion is provided with a fixing member.
More preferably, the outward extension length of the slab unit is 350mm along both ends perpendicular to the channel direction, and the outward extension section of the steel bar is subjected to rust prevention treatment.
The utility model relates to a manufacturing method of an assembly type regenerated waterproof concrete drainage channel mechanism, which comprises the following steps:
1) arranging a reinforcing mesh, and pouring and molding regenerated waterproof concrete to provide a first slab layer;
2) after a first impermeable layer is laid on the first slab, arranging a reinforcing mesh, and pouring and molding regenerated waterproof concrete to provide a second slab;
3) be equipped with a plurality of spread grooves on the both ends of second sheet layer along the channel direction, be equipped with a plurality of first keyhole that run through first barrier layer on the second sheet layer of spread groove below.
Preferably, the recycled waterproof concrete poured in the first slab layer and the second slab layer is recycled aggregate waterproof concrete with strength grade of RC25 below, which is prepared from recycled coarse aggregate, the substitution rate of the recycled coarse aggregate is 50% -100%, and the mixing ratio of the recycled waterproof concrete comprises the following components in parts by weight: cement 250-280 parts; 60-70 parts of fly ash; 125 portions of water and 130 portions of water; sand 600 + 715 parts; 595 portions of natural coarse aggregate; 1200 parts of recycled coarse aggregate 595; 3-4 parts of a water reducing agent; 0.1 to 0.2 portion of waterproof agent.
More preferably, 256 parts of cement; 64 parts of fly ash; 128 parts of water; 709 parts of sand; 600 parts of natural coarse aggregate; 600 parts of recycled coarse aggregate; 3.2 parts of a water reducing agent; 0.16 part of waterproof agent.
The recycled waterproof concrete is prepared according to technical Specification for application of recycled waterproof concrete (DG/TJ08-2018), the recycled coarse aggregate is II-type recycled coarse aggregate, the recycled coarse aggregate is prepared by crushing, cleaning and grading waste concrete subjected to dismantling operation in new rural construction and matching according to a certain proportion, a jaw crusher is adopted for crushing the waste concrete, and the recycled coarse aggregate is sieved and selected to have a continuous grain size of 5-40mm after being crushed.
More preferably, the cement is PO42.5 portland cement.
More preferably, the fly ash is class I fly ash, and the quality of the fly ash is in accordance with the regulations in fly ash for cement and waterproof concrete (GB/T1596-2017).
More preferably, the sand is natural sand.
More preferably, the water reducing agent is a polycarboxylic acid water reducing agent.
The water-proofing agent is triethanolamine water-proofing agent, can increase cement hydration products, and make the cement stone be crystallized and thinned, so that the water-proofing concrete is more compact, and the permeability resistance of the channel body can be raised.
The utility model provides a fabricated regenerative waterproof concrete channel, which comprises a plurality of drainage channel mechanisms.
Preferably, a fixing plate is arranged between the adjacent drainage channel mechanisms, the fixing plate is arranged in the corresponding connecting groove of the adjacent drainage channel mechanism and covers a first bolt hole below the connecting groove, the fixing plate is provided with a second bolt hole corresponding to the first bolt hole, and the fixing plate is provided with a second impermeable layer.
According to the manufacturing method of the assembled regenerated waterproof concrete channel, a plurality of drainage channel mechanisms manufactured by the method are sequentially connected along the channel direction, and adjacent drainage channel mechanisms are connected with a fixed plate through first bolt holes below corresponding connecting grooves to realize splicing.
As described above, the assembled recycled waterproof concrete drainage channel mechanism and channel of the utility model have the following beneficial effects: according to the assembled recycled waterproof concrete water distribution channel designed by the utility model, waste concrete is crushed and screened to replace partial natural coarse aggregate, the recycled waterproof concrete is prepared to perform channel unit prefabrication, and the equal-strength waterproof concrete is used for post-pouring connection.
Drawings
Fig. 1 shows a transverse cross-sectional view of the fabricated recycled waterproof concrete drainage channel mechanism of the present invention.
Fig. 2 is a schematic bottom view of the prefabricated recycled waterproof concrete drainage channel mechanism of the present invention.
Fig. 3 is a schematic view showing a connecting groove structure of the fabricated recycled waterproof concrete drainage channel mechanism of the present invention.
Fig. 4 is a top view of the connection portion of the fabricated recycled waterproof concrete drainage channel mechanism of the present invention.
Fig. 5 is a longitudinal sectional view showing the connecting portion of the fabricated recycled waterproof concrete drainage channel mechanism of the present invention.
Fig. 6 is a schematic view showing a fixing part of the fabricated recycled waterproof concrete drainage channel mechanism of the present invention.
Reference numerals
1 first sheet layer
2 second ply
3 first barrier layer
4 connecting groove
5 first keyhole
6 steel bar net overhanging section
7 fixing part
8 fixed plate
9 second keyhole
10 post-cast strip
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Example 1
The utility model provides an assembled regeneration waterproof concrete drainage canal mechanism, drainage canal mechanism is uncovered groove structure, drainage canal mechanism is from top to bottom including a plurality of sheet layer unit, the sheet layer unit is equipped with first sheet layer 1 and second sheet layer 2 from top to bottom in proper order, be equipped with first barrier layer 3 between first sheet layer 1 and the second sheet layer 2, be equipped with a plurality of spread grooves 4 on the both ends of first sheet layer 1 edge channel direction, be equipped with a plurality of first keyhole 5 on the second sheet layer 2 of spread groove 4 below, drainage canal mechanism is equipped with post-cast strip 10, post-cast strip 10 is formed by first sheet layer 1 for second sheet layer 2 along the channel direction indentation.
The drainage channel mechanism is of an open type trapezoid groove structure, the first bolt holes 5 penetrate through the second plate layer 2 and the first impermeable layer 3, the two first bolt holes 5 are arranged to form a group, the first bolt holes 5 are reserved at the corresponding positions, 50mm away from the edge of the second plate layer 2, below the connecting groove 4, of the corresponding positions, the center distance between the two first bolt holes 5 is 100mm, and the first bolt holes 5 are transversely arranged at intervals of 450mm along the channel unit.
The thickness of the first plate layer 1 and the second plate layer 2 can be 100mm-200mm, and the length of the first plate layer 1 and the second plate layer 2 along the channel direction can be 2000-3000 mm.
The connecting groove 4 is an arc connecting groove 4.
The anti-seepage layer material is an SBC waterproof roll with the thickness of 1-2 mm.
The anti-seepage layer is made of a 1.5mm thick SBC waterproof coiled material, the execution standard of the SBC waterproof coiled material GB18242-2008 is that styrene-butadiene-styrene (SBS) rubber modified asphalt is used as a coating, glass fiber felt, polyester felt and glass fiber reinforced polyester felt are used as a base, and two sides of the base are covered with a waterproof material with excellent performance, so that the waterproof material has the advantages of heat resistance, cold resistance, corrosion resistance, ageing resistance, good thermoplasticity, high tensile strength, high elongation, strong tear resistance and the like.
Reinforcing meshes are arranged in the first slab layer 1 and the second slab layer 2.
The slot holes of the connecting slots 4 are retracted relative to the end face of the first slab 1, the interval is kept between the adjacent connecting slots 4, and a plurality of reinforcing mesh extending sections 6 are arranged on the slot holes.
The slab unit is provided with fixing members 7 extending outwardly along both ends perpendicular to the channel direction and the outwardly extending portions.
The length of the two outward extending ends of the slab unit in the direction perpendicular to the channel is 350mm, and the steel bars at the outward extending sections are subjected to rust prevention treatment.
Example 2
The drainage ditch project of a certain high-standard farmland construction demonstration project comprises two parts, namely a branch ditch and a bucket ditch, wherein the total length of the drainage ditch is 51km, and 4 branch ditches and 12 bucket ditches are arranged in the whole ditch system. The total length of the branch channel is 8.93km, and the total length of the bucket channel is 8.38 km; 93 ditches and 33.6km in total length. According to the drainage system engineering layout and relevant standards, the depth and the spacing of the field drainage ditches are determined, and the flow, the water level, the section size and the engineering quantity of all levels of drainage channels and buildings are analyzed and calculated. The space between the drainage ditches of the field drainage network and the size of the section are determined by the drainage requirement and the tractor ploughing requirement.
The water depth and the bottom width of the drainage channel are designed according to the water consumption of farmland irrigation. 41000hm for actual irrigation of paddy field in irrigation area in one year2Irrigation rating of 14340m3/hm2Water consumption 58794 ten thousand meters3. And (4) adopting a trial algorithm, namely determining the water depth and the bottom width of the channel section according to the requirements of drainage, irrigation and the like.
Taking the branch channel as an example, the channel design gradient is 1/7000, the channel slope coefficient is 2, the channel depth is 2.1m, the primarily selected cross section size is the channel bottom width 3m, and the channel water depth is 1.65 m. When the channel is used for water diversion irrigation, the water level often forms a reverse slope or a flat slope, and a water surface curve of the drainage channel during water diversion irrigation needs to be calculated according to a non-uniform flow formula so as to check whether the drainage channel can meet the requirements of irrigation diversion in the aspects of water delivery distance, flow rate and the like, and if not, the water conservancy factors of the drainage channel are adjusted. According to the design standard of irrigation and drainage engineering (GB50288-2018), the cross section size of a channel is initially selected, the drainage modulus is determined, and the drainage modulus of 0.528m is obtained according to the drainage mode of a farmland, the rainstorm reappearance period and local recent measured data3/(s·km2). The drainage area of the channel is 8.67km2The drainage flow rate is calculated as follows:
Qbear (bear)=ABear (bear)qBear (bear)=8.67×0.528=4.6m3/s
Finally, checking the flow of the section of the drainage channel, calculating the design flow according to the design parameters of the cross section, and comparing the design flow with the drainage flow, wherein the area of the cross section of the branch channel is 10.39m2The wet cycle length is 10.38m, the hydraulic radius is 1m, the talent rejection coefficient is 40.01, and the design flow calculation formula is substituted as follows:
Figure BDA0003290917960000062
and the flow checking calculation meets the requirements.
According to the content of the utility model, the regenerated waterproof concrete with the designed strength RC25 for pouring comprises the following components in parts by weight: 278 parts of cement; 70 parts of fly ash; 128 parts of water; 660 parts of sand; 1200 parts of recycled coarse aggregate; 3.5 parts of a water reducing agent; 0.17 part of waterproof agent.
Specifically, the cement is PO42.5 portland cement; the fly ash is I-grade fly ash; the sand is natural sand; the water reducing agent is a polycarboxylic acid water reducing agent; the waterproof agent is a triethanolamine waterproof agent; the recycled coarse aggregate is selected to have a continuous particle size fraction of 5-40mm, and the substitution rate is 100%.
The assembling method of the assembled regenerated waterproof concrete channel comprises the following steps: it is adjacent be equipped with fixed plate 8 between the drainage canal mechanism, fixed plate 8 locates in the corresponding spread groove 4 of adjacent drainage canal mechanism and covers the first keyhole 5 of spread groove 4 below, be equipped with the second barrier layer on the fixed plate 8, fixed part 7 size is got for 200mm 10mm, reserves four first keyhole 5 centre-to-centre distances and gets to be 100mm, gets to be 50mm apart from fixed part 7 marginal distance.
TABLE 1 comparison of the mix ratio parameters of the waterproof concrete
Figure BDA0003290917960000061
Water-cement ratio is the mass of water/mass of cement;
the sand rate is the mass of sand/(the mass of sand + the mass of natural coarse aggregate + the mass of recycled coarse aggregate);
the replacement ratio of the recycled coarse aggregate is the mass of the recycled coarse aggregate/(the mass of the recycled coarse aggregate + the mass of the natural coarse aggregate);
the blending amount of the fly ash is the mass of the fly ash/(the mass of the fly ash + the mass of the cement).
As shown in table 1, comparing example 1 with example 2, RC25 recycled waterproof concrete in example 2 increased the substitution rate of recycled coarse aggregate from 50% to 100%, and simultaneously decreased the water cement ratio from 0.50 to 0.46 to ensure the formulated strength of waterproof concrete. The replacement rate of the recycled waterproof concrete is improved under the condition of ensuring the design strength, the limit of the specification on the upper limit of the replacement rate is met, the utilization rate of recycled aggregate is improved, the problem of disposing of construction waste in new rural construction is better solved, the purposes of resource recycling and environment protection are achieved, and the method can be considered as a beneficial measure.
The above examples are intended to illustrate the disclosed embodiments of the utility model and are not to be construed as limiting the utility model. In addition, various modifications of the methods and compositions set forth herein, as well as variations of the utility model, will be apparent to those skilled in the art without departing from the scope and spirit of the utility model. While the utility model has been specifically described in connection with various specific preferred embodiments thereof, it should be understood that the utility model should not be unduly limited to such specific embodiments. Indeed, various modifications of the above-described embodiments which are obvious to those skilled in the art to which the utility model pertains are intended to be covered by the scope of the present invention.

Claims (7)

1. The utility model provides an assembled regeneration waterproof concrete drainage canal mechanism, a serial communication port, drainage canal mechanism is uncovered groove structure, drainage canal mechanism is from top to bottom including a plurality of sheet layer unit, the sheet layer unit is equipped with first sheet layer (1) and second sheet layer (2) from top to bottom in proper order, be equipped with first barrier layer (3) between first sheet layer (1) and second sheet layer (2), be equipped with a plurality of spread groove (4) on first sheet layer (1) along the both ends of channel direction, be equipped with a plurality of first keyhole (5) on second sheet layer (2) of spread groove (4) below.
2. The fabricated recycled waterproof concrete drain channel mechanism according to claim 1, characterized in that the drain channel mechanism is provided with a post-cast strip (10), and the post-cast strip (10) is formed by a first slab (1) being indented in a channel direction with respect to a second slab (2).
3. The fabricated recycled waterproof concrete drainage channel mechanism as claimed in claim 1, wherein a steel mesh is arranged in the first slab (1) and the second slab (2).
4. The fabricated recycled waterproof concrete drainage channel mechanism as claimed in claim 1, wherein the slot holes of the connecting slots (4) are retracted relative to the end face of the first slab (1), and a plurality of steel mesh extending sections (6) are arranged on the slot holes, and a space is kept between the adjacent connecting slots (4).
5. The fabricated regenerative waterproof concrete drainage channel mechanism according to claim 1, wherein the slab unit is extended outward along both ends perpendicular to the channel direction and the extended outward portion is provided with a fixing member (7).
6. An assembled reconstituted waterproof concrete channel comprising a plurality of drainage channel mechanisms according to any one of claims 1 to 5.
7. The fabricated regenerative waterproof concrete channel according to claim 6, wherein a fixing plate (8) is arranged between adjacent drainage channel mechanisms, the fixing plate (8) is arranged in a corresponding connecting groove (4) of the adjacent drainage channel mechanism and covers a first bolt hole (5) below the connecting groove (4), the fixing plate (8) is provided with a second bolt hole (9) corresponding to the first bolt hole (5), and a second impermeable layer is arranged on the fixing plate (8).
CN202122396961.7U 2021-09-30 2021-09-30 Assembled regeneration waterproof concrete drainage canal mechanism and channel Active CN215977132U (en)

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