CN107443567B - Production method of retaining wall prefabricated member - Google Patents

Production method of retaining wall prefabricated member Download PDF

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Publication number
CN107443567B
CN107443567B CN201710726510.0A CN201710726510A CN107443567B CN 107443567 B CN107443567 B CN 107443567B CN 201710726510 A CN201710726510 A CN 201710726510A CN 107443567 B CN107443567 B CN 107443567B
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die
steel bar
retaining wall
mold
concrete
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CN107443567A (en
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潘春光
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/245—Curing concrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/06—Aluminous cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Abstract

The utility model discloses a production method of a retaining wall prefabricated member, which comprises the following steps: (1) Designing a pouring die required by the corresponding shape of the retaining wall prefabricated member; (2) Uniformly coating mold release oil or filling a plastic film on the inner side of the mold; (3) Sleeving a reinforcing steel bar member for enhancing the strength of the retaining wall into a pouring die, and fixing the reinforcing steel bar member; (4) making concrete required by pouring on site; pouring concrete from the middle of the die to two ends, uniformly stirring, tamping by using a vibrating rod of a vibrator for 1-3 minutes, and trowelling the upper surface of a notch of the die; closing the die cover plate; (5) The prefabricated components of the canal after concrete pouring can be disassembled after being cured in site, wen Dayu h.C, the side mold can be disassembled after being cured, the internal mold can be disassembled after being sprayed with water to be cured, the temperature reaches 1500 h.C, the prefabricated components can be piled up in a concentrated mode after the internal mold is disassembled, and the prefabricated components can be delivered for use after being cured, the temperature reaches more than 2000 h.C. The utility model can greatly improve the construction efficiency and the like.

Description

Production method of retaining wall prefabricated member
Technical Field
The utility model relates to the field of hydraulic engineering, in particular to a production method of a retaining wall prefabricated member. Can be applied to the aspects of water conservancy construction, municipal drainage systems or highway bridges and culverts.
Background
The canal is a main tool for irrigation and drainage engineering of irrigation and water conservancy, traffic, municipal administration, sewage treatment, drainage in rainy days and the like, and the precast concrete U-shaped canal mould is one of the main tools for producing the canal.
With the great development of modern agriculture and water conservancy infrastructure in China, the investment scale of the nation and places on the agriculture and water conservancy infrastructure is larger and larger. The water resource distribution is very uneven in China, and particularly in western regions, the water resource of partial province and city is very short. Meanwhile, due to unreasonable irrigation and drainage modes and materials, a large amount of water resources are not well utilized and protected, and the problem of low-efficiency utilization of water resources in agricultural engineering and water conservancy construction in China is solved. For over 20 years, the precast concrete canal (U-shaped canal for short) is popularized and applied in various provinces and cities of China, especially in agricultural hydraulic engineering in western water resource shortage areas, so that the precast concrete canal is fully ensured by agriculture and water conservancy departments in various areas, and obvious economic and social benefits are obtained.
There are also many chinese patent documents searched for retaining wall prefabricated members as follows:
1. the utility model relates to a concrete prefabricated groove for farmland ditch, which is formed by oppositely arranging and combining a pair of prefabricated components with L-shaped cross sections into a U-shaped groove, wherein base plates with different widths can be additionally arranged between the matching surfaces of the two L-shaped components to form various ditch ditches with different flow rates, and the matching surfaces of the components are provided with positioning rabbets.
2. Chinese patent < application number > 201515177706. X < utility model name > a novel prefabricated ditch < applicant > Deng Zenghua < address > a novel prefabricated ditch of the agricultural development office < abstract > of Ganzhou city and city county in Jiangxi province, relates to a rural water conservancy reconstruction facility, in particular to a novel prefabricated ditch, which comprises a U-shaped groove, wherein the upper edge of the U-shaped groove is provided with a road slab; the method is characterized in that: every section U-shaped groove end is equipped with the sealing groove, and two sections U-shaped groove junctions are connected with the reinforcing bar, fill with novel sealing rubber in the sealing groove of U-shaped groove end again, play the stagnant water effect.
3. The utility model relates to the technical field of hydraulic engineering, in particular to an anti-deformation combined canal widely used in agricultural irrigation, transportation municipal water delivery and drainage engineering, which is characterized in that: the sealing device comprises a plurality of canal boards, wherein the butt joint parts of the adjacent canal boards are connected with sealing glue in a sealing way through sealing connecting strips, convex edges are arranged below the canal boards at the butt joint parts of the canal boards and the canal boards, and the butt joint parts of the longitudinal or transverse canal boards are fixedly connected with connecting screws arranged in the sealing connecting strips through straight groove stabilizing blocks contacted with the convex edges at the butt joint parts of the longitudinal or transverse canal boards; the joint of the longitudinal canal plate and the transverse canal plate is fixedly connected with the connecting screw rod arranged in the sealing connecting strip through the cross groove stabilizing block contacted with the convex edge of the joint.
4. The utility model discloses a casting molding die for a prefabricated drainage channel, which is disclosed in Chinese patent (application number: 201520000756.6) and utility model name: a casting molding die for a prefabricated drainage channel, wherein the casting molding die comprises a trolley, an outer die and an inner die, the outer die is concave, the inner die is U-shaped, and the drainage channel is molded in a cavity between the outer die and the inner die.
The defects existing in the prior art are as follows: 1. the construction process has long period, high cost, more manpower and weather influence during construction, larger construction facilities and sites need to be excavated, the construction facilities and sites are easy to damage, the construction facilities and sites are difficult to maintain, the construction facilities and sites cannot be recycled, the construction facilities and sites are quite troublesome to dismantle, the original land environment is easy to damage, and the like; 2. the canal groove is easy to be extruded and deformed or damaged by soil layer pressure, so that the service life of the beam groove is greatly influenced, the cost input is greatly increased, and the resource is wasted; 3. when the canal groove is installed and butted, the sealing performance of the butted part is poor, water is easy to leak, and the water source can not be utilized to the maximum extent; 4. the process steps for manufacturing the prefabricated member of the retaining wall are more, the mold taking is complicated, the labor force and the working time are greatly wasted, and the work efficiency is low.
Applicants state herein that: the utility model relates to a water conservancy channel cement prefabricated member production enterprise, which is used for researching and developing water conservancy channel cement prefabricated members for several years, and the existing products are tested and verified, namely, the water conservancy channel cement prefabricated member production enterprise is put into the market, and several patent application documents applied on the same day are scientific achievements of the inventor.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the production method of the retaining wall prefabricated member, which can meet the requirements of mechanized construction, greatly improve the construction efficiency, greatly shorten the engineering construction period, has the advantages of firm structure, strong extrusion deformation resistance, convenient disassembly and assembly, good butt joint sealing performance, neat appearance, attractive streamline appearance, quick installation and convenient disassembly.
In order to achieve the aim of the utility model, the technical scheme adopted is as follows:
a method of producing a retaining wall preform, said method comprising the steps of:
(1) Designing a pouring die required by the corresponding shape of the retaining wall prefabricated member;
(2) Uniformly coating mold release oil or filling a plastic film on the inner side of the mold;
(3) Placing a bottom die, placing a reinforcing steel bar member for enhancing the strength of the precast member of the retaining wall, fixing the reinforcing steel bar member, and sleeving a die cavity; the steel bar component comprises a vertical steel bar structure, a longitudinal steel bar structure and an inverted U-shaped steel bar structure; the vertical steel bar structure and the inverted U-shaped steel bar structure are connected by the longitudinal steel bar structure to form a steel bar member;
(4) Pouring the concrete required by the pouring of the components from the top of the die, uniformly spreading the concrete to two ends, vibrating the concrete by using a direct-insert vibrator for 1-3 minutes, and trowelling the concrete surface on the notch of the die after the air bubbles are discharged from the concrete; covering a cover plate;
(5) The prefabricated components of the canal after concrete pouring are cured on site, the side mold can be disassembled after the curing time is Wen Dayu h and the temperature reaches 1500h and the internal mold can be disassembled after the water spraying curing time is up to the temperature of 2000h and the prefabricated components can be delivered for use after the internal mold is disassembled and stacked in a concentrated manner.
The time and temperature are time and outdoor temperature, the time unit is hour, the time value is a positive integer which is more than or equal to 16, the sum value which is accumulated in time is more than or equal to 16, and the time value can be 16, 17, 18, 19, 20, 21, 22, 23, 24 and other values; the outdoor temperature unit is the temperature which is more than or equal to 20 ℃ and is a positive integer; the outdoor temperature is monitored in real time, calculation is carried out every one hour, all values are accumulated, and in the maintenance process, when the accumulated value of all time and temperature is more than 500h DEG C, a die cover plate, a side wall die and an end cover die of the die are disassembled; in the process of sprinkling and curing, when all time and temperature values are accumulated to be more than 1500h and DEG C, the die cavity can be removed, and the prefabricated parts are piled up intensively after the die cavity is removed; and continuing maintenance, when the accumulated value of all time and temperature values reaches 2000h and DEG C, the prefabricated member can be delivered for use, and when the value of each stage is calculated, the value of the next stage is not counted.
The mold comprises a bottom mold, a mold cavity, a mold cover plate and a reinforcing steel bar member; the steel bar member is fixed on the bottom die, the die cavity is sleeved on the steel bar member, the position is adjusted, the die cavity is fixed above the bottom die through bolts, and the die cover plate is covered on the die cavity.
The die cavity is formed by bending and welding or stamping steel plates, and the edges of the die cavity are supported by angle steel or channel steel.
The side wall and the bottom of the prefabricated member are connected in a chamfering transitional manner, so that sludge can be conveniently removed; the edges of the end face and the upper surface of the bottom of the prefabricated member are respectively provided with a butt joint groove.
Through holes for forming hanging holes after pouring are formed in the two side walls of the die cavity, and the two through holes are connected through cylinders.
The concrete comprises the following raw materials in parts by weight: 60-70 parts of coarse and fine aggregate, 10-20 parts of aluminate cement, 5-10 parts of fly ash and 1-3 parts of high-efficiency water reducer, wherein the high-efficiency water reducer is alcohol waste liquid dry powder and calcium sulfonate water reducer with the weight ratio of 1:1.
The coarse and fine aggregate is a mixture of river sand and limestone or granite particles, and the weight ratio of the river sand to the limestone or granite particles is 1:1-1.5; the fineness modulus of the river sand is 2.2-3.0, and the particle diameter of the limestone or granite is 5-30 mm.
The preparation method of the calcium sulfonate water reducer comprises the steps of taking sulfite pulp waste liquid as a raw material, adding sodium hydroxide to adjust the PH value to 8-10, introducing air to react for 10-12 hours at 70-80 ℃, adding potassium sulfate, reacting for 40-50 min at 70-80 ℃, filtering, and drying to obtain the calcium sulfonate water reducer.
Compared with the prior art, the utility model has outstanding substantive characteristics and remarkable progress:
1. the utility model can meet the requirement of mechanized construction, greatly improves the construction efficiency, greatly shortens the engineering construction period, has the advantages of firm structure, strong extrusion deformation resistance, convenient disassembly and assembly, repeated use, good butt joint sealing performance, neat appearance, attractive streamline, quick installation and convenient disassembly.
2. The retaining wall prefabricated member produced by the method has the advantages that the appearance is neat, the water channel is formed, the overall appearance of the water channel is neat, the water channel is neat and beautiful, the work efficiency is improved by more than 7 times compared with that of the common construction method during installation, and the construction period is shortened to 80-90%.
3. The utility model has the advantages of less material consumption, saving 12-35% of cast-in-situ concrete investment, greatly reducing cost investment and generating great economic benefit.
4. The mould for production and use is simple and convenient to manufacture, rapid to assemble, simple in procedure, and convenient and rapid to take and demold; the steel bar members are sleeved in the mould, so that the beam slot prefabricated member manufactured by building and moulding has firm structure and strong compression resistance and tensile resistance; the steel bar framework consists of two layers of construction steel bars, reinforcing construction steel bars and transverse stress steel bars, and has uniform overall stress and good force conductivity.
5. The utility model adopts the fly ash as the admixture, reduces the cement consumption, greatly improves the strength of the precast concrete trench, effectively inhibits the alkali aggregate reaction of the concrete, obviously improves the alkali aggregate reaction resistance of the concrete and improves the durability of the precast concrete trench; the bleeding amount of the concrete is reduced, and the workability of the concrete is improved; the compactness of the concrete is improved, and the impermeability of the canal prefabrication is obviously improved.
6. The calcium sulfonate water reducer adopted by the utility model can reduce water consumption by more than 10%, improve compressive strength by more than 15% on average, remarkably improve workability of concrete, greatly improve durability of the concrete, and greatly reduce hydration heat of the cement in the early stage of hydration.
7. The utility model can be applied to the aspects of water conservancy construction, municipal drainage systems or highway bridges and culverts, and has the advantages of no water seepage, difficult collapse and the like compared with the retaining wall of the existing hydraulic engineering.
8. The reinforcement cage is specially designed, can ensure that the canal prefabrication is firm and durable, improves the quality by more than several times compared with the traditional canal prefabrication, and can withstand heavy pressure without deformation.
9. The canal prefabricated member after concrete pouring can be disassembled after being cured in site, wen Dayu h and temperature are respectively equal to or higher than 2000h and temperature, and a mold cavity can be disassembled after Wen Dayu h and temperature are respectively equal to or higher than 1500h and temperature are respectively equal to or lower than 57 h and temperature in water spraying and curing, and the prefabricated member can be stacked in a concentrated manner after the mold cavity is disassembled, and can be delivered for use after being cured; by adopting the maintenance mode, the accurate maintenance of the canal prefabrication can be achieved, the quality of the canal prefabrication is improved, and the compression resistance and the tensile resistance of the canal prefabrication are enhanced; unnecessary human input can be saved, unnecessary waste of water can be avoided, and production cost is reduced.
Drawings
Fig. 1 is a schematic perspective view of a prefabricated member mold for retaining wall according to the present utility model.
Fig. 2 is a schematic structural view of a retaining wall.
Fig. 3 is a schematic perspective view of a reinforcing bar member for reinforcing the strength of the retaining wall.
The names and serial numbers of the elements in the figure are as follows: the die comprises a bottom die 1, a die cavity 2, a die cover plate 3, a hanging hole 4, bolts 5, a vertical steel bar structure 6, a longitudinal steel bar structure 7, an inverted U-shaped steel bar structure 8 and a butt joint groove 9.
Detailed Description
The present utility model will be described in further detail with reference to examples of the present utility model.
Example 1:
referring to fig. 1 to 3, there is shown a method of producing a retaining wall preform, the method comprising the steps of:
(1) Designing a pouring die required by the corresponding shape of the retaining wall prefabricated member;
(2) Uniformly coating mold release oil or filling a plastic film on the inner side of the mold;
(3) Placing a bottom die, placing a reinforcing steel bar member for enhancing the strength of the precast member of the retaining wall, fixing the reinforcing steel bar member, and sleeving a die cavity; the steel bar member comprises a vertical steel bar structure 6, a longitudinal steel bar structure 7 and an inverted U-shaped steel bar structure 8; the vertical steel bar structures 6 and the inverted U-shaped steel bar structures 8 are connected to form unit components, and the unit components are connected through the longitudinal steel bar structures 7 to form steel bar components;
(4) Pouring the concrete required by the pouring of the components from the top of the die, uniformly spreading the concrete to two ends, vibrating the concrete by using a direct-insert vibrator for 1-3 minutes, and trowelling the concrete surface on the notch of the die after the air bubbles are discharged from the concrete; covering a cover plate;
(5) The prefabricated components of the canal after concrete pouring are cured on site, the side mold can be disassembled after the curing time is Wen Dayu h and the temperature reaches 1500h and the internal mold can be disassembled after the water spraying curing time is up to the temperature of 2000h and the prefabricated components can be delivered for use after the internal mold is disassembled and stacked in a concentrated manner.
The time and temperature are time and outdoor temperature, the time unit is hour, the time value is a positive integer which is more than or equal to 16, the outdoor temperature unit is the temperature of celsius, the outdoor temperature is more than or equal to 20 ℃, and the outdoor temperature is a positive integer.
After the in-situ casting is finished, the maintenance time can be counted in time, and the casting is finished at 9 points in the morning, namely, the time is counted from the 9 points in the morning; taking 9 a morning to 21 a evening for 12 hours, wherein the outdoor temperature is 30 ℃, and the time is Wen Wei multiplied by 30=360 h; 21 pm to 9 am the next day for 12 hours, hour Wen Wei x 28=336 h·; and adding the numerical values of the two time periods, namely 360+336=696h.DEG.C is greater than 500 h.DEG.C, and removing the die cover plate, the side wall die and the end cover die of the die.
Sprinkling water for maintenance, wherein the outdoor temperature is 30 ℃ from 10 a.m. to 21 a.m., and the time and temperature are 11×30=330 h·; 21 pm to 9 am, the outdoor temperature is 28 ℃, when the outdoor temperature is Wen Wei, the temperature is Wen Wei multiplied by 28=336 h; 9 to 21 in the morning, the outdoor temperature is 32 ℃, when Wen Wei 12 ×32=384 h·; 21 pm to 9 am, the outdoor temperature is 30 ℃, when Wen Wei is 12×30=360 h·; 9 to 14 points in the morning, wherein the outdoor temperature is 31 ℃, and the hour temperature is 5×31=155 h·; and accumulating the values at the stage, namely 330+336+384+360+155=1565, which is more than 1500 h.DEG C, namely dismantling the die cavity, lifting the prefabricated part from the die cavity, and stacking and curing.
Continuing maintenance, and when the accumulated value of all time and temperature reaches 2000h DEG C, from 14 pm to 21 pm, the outdoor temperature is 31 ℃, and the time and temperature is 7 multiplied by 31=217 h DEG C; 21 pm to 9 am, the outdoor temperature is 29 ℃, when Wen Wei is 12×29=348 h·; 9 to 21 in the morning, the outdoor temperature is 32 ℃, when Wen Wei 12 ×32=384 h·; 21 pm to 9 am, the outdoor temperature is 30 ℃, when Wen Wei is 12×30=360 h·; 9 to 21 in the morning, the outdoor temperature is 33 ℃, and when the outdoor temperature is Wen Wei x 33=396 h·; 21 pm to 9 am, the outdoor temperature is 30 ℃, when Wen Wei is 12×30=360 h·; the values at this stage are accumulated, namely 217+348+384+360+396+360=2065 reaches more than 2000 h.DEG C, which indicates that the curing standard is met, and the product can be shipped for use.
The mold comprises a bottom mold 1, a mold cavity 2, a mold cover plate 3 and a reinforcing steel member; the steel bar member is fixed on the bottom die 1, the die cavity 2 is sleeved on the steel bar member, the position is adjusted, the die cavity 2 is fixed above the bottom die 1 through the bolts 5, and the die cover plate 3 is covered on the die cavity 2.
The die cavity 2 is formed by bending and welding or stamping steel plates, and the edges of the die cavity are supported by angle steel or channel steel.
The side wall and the bottom of the prefabricated member are connected in a chamfering transitional manner, so that sludge can be conveniently removed; the edges of the end face and the upper surface of the bottom of the prefabricated member are respectively provided with a butt joint groove 9.
Through holes for forming hanging holes 4 after pouring are formed in the two side walls of the die cavity 2, and the two through holes are connected through cylinders.
The concrete comprises the following raw materials in parts by weight: 60 parts of coarse and fine aggregate, 10 parts of aluminate cement, 5 parts of fly ash and 1 part of high-efficiency water reducer, wherein the high-efficiency water reducer is alcohol waste liquid dry powder and the weight ratio of the calcium sulfonate water reducer is 1:1.
The coarse and fine aggregate is a mixture of river sand and limestone or granite particles, and the weight ratio of the river sand to the limestone or granite particles is 1:1-1.5; the fineness modulus of the river sand is 2.2-3.0, and the particle diameter of the limestone or granite is 5-30 mm.
The preparation method of the calcium sulfonate water reducer comprises the steps of taking sulfite pulp waste liquid as a raw material, adding sodium hydroxide to adjust the PH value to 8, introducing air to react for 10 hours at 70 ℃, adding potassium sulfate, reacting for 40 minutes at 70 ℃, filtering, and drying to obtain the calcium sulfonate water reducer.
The retaining wall prefabricated member production method has the advantages that the retaining wall prefabricated member production method can be used for water conservancy construction, municipal drainage systems or highway bridges and culverts.
Example 2:
referring to fig. 1 to 3, there is shown a method of producing a retaining wall preform, the method comprising the steps of:
(1) Designing a pouring die required by the corresponding shape of the retaining wall prefabricated member;
(2) Uniformly coating mold release oil or filling a plastic film on the inner side of the mold;
(3) Placing a bottom die, placing a reinforcing steel bar member for enhancing the strength of the precast member of the retaining wall, fixing the reinforcing steel bar member, and sleeving a die cavity; the steel bar member comprises a vertical steel bar structure 6, a longitudinal steel bar structure 7 and an inverted U-shaped steel bar structure 8; the vertical steel bar structures 6 and the inverted U-shaped steel bar structures 8 are connected to form unit components, and the unit components are connected through the longitudinal steel bar structures 7 to form steel bar components;
(4) Pouring the concrete required by the pouring of the components from the top of the die, uniformly spreading the concrete to two ends, vibrating the concrete by using a direct-insert vibrator for 1-3 minutes, and trowelling the concrete surface on the notch of the die after the air bubbles are discharged from the concrete; covering a cover plate;
(5) The prefabricated components of the canal after concrete pouring are cured on site, the side mold can be disassembled after the curing time is Wen Dayu h and the temperature reaches 1500h and the internal mold can be disassembled after the water spraying curing time is up to the temperature of 2000h and the prefabricated components can be delivered for use after the internal mold is disassembled and stacked in a concentrated manner.
The time and temperature are time and outdoor temperature, the time unit is hour, the time value is a positive integer which is more than or equal to 16, the outdoor temperature unit is the temperature of celsius, the outdoor temperature is more than or equal to 20 ℃, and the outdoor temperature is a positive integer.
After the in-situ casting is finished, the maintenance time can be counted in time, and the casting is finished at 11 noon, namely, the time is counted from 11 noon; taking 11 noon to 21 pm in a time period, wherein the outdoor temperature is 30 ℃ and the hour temperature is 10×30=300 h· DEG C for 10 hours; 21 pm to 9 am the next day for 12 hours, hour Wen Wei x 28=336 h·; and adding the numerical values of the two time periods, namely 300+336=636 h.DEG C is greater than 500 h.DEG C, and removing the die cover plate, the side wall die and the end cover die of the die.
Sprinkling water for maintenance, wherein the outdoor temperature is 30 ℃ from 10 a.m. to 21 a.m., and the time and temperature are 11×30=330 h·; 21 pm to 9 am, the outdoor temperature is 28 ℃, when the outdoor temperature is Wen Wei, the temperature is Wen Wei multiplied by 28=336 h; 9 to 21 in the morning, the outdoor temperature is 32 ℃, when Wen Wei 12 ×32=384 h·; 21 pm to 9 am, the outdoor temperature is 30 ℃, when Wen Wei is 12×30=360 h·; 9 to 14 points in the morning, wherein the outdoor temperature is 31 ℃, and the hour temperature is 5×31=155 h·; and accumulating the values at the stage, namely 330+336+384+360+155=1565, which is more than 1500 h.DEG C, namely dismantling the die cavity, lifting the prefabricated part from the die cavity, and stacking and curing.
Continuing maintenance, and when the accumulated value of all time and temperature reaches 2000h DEG C, from 14 pm to 21 pm, the outdoor temperature is 31 ℃, and the time and temperature is 7 multiplied by 31=217 h DEG C; 21 pm to 9 am, the outdoor temperature is 29 ℃, when Wen Wei is 12×29=348 h·; 9 to 21 in the morning, the outdoor temperature is 32 ℃, when Wen Wei 12 ×32=384 h·; 21 pm to 9 am, the outdoor temperature is 30 ℃, when Wen Wei is 12×30=360 h·; 9 to 21 in the morning, the outdoor temperature is 33 ℃, and when the outdoor temperature is Wen Wei x 33=396 h·; 21 pm to 9 am, the outdoor temperature is 30 ℃, when Wen Wei is 12×30=360 h·; the values at this stage are accumulated, namely 217+348+384+360+396+360=2065 reaches more than 2000 h.DEG C, which indicates that the curing standard is met, and the product can be shipped for use.
The mold comprises a bottom mold 1, a mold cavity 2, a mold cover plate 3 and a reinforcing steel member; the steel bar member is fixed on the bottom die 1, the die cavity 2 is sleeved on the steel bar member, the position is adjusted, the die cavity 2 is fixed above the bottom die 1 through the bolts 5, and the die cover plate 3 is covered on the die cavity 2.
The die cavity 2 is formed by bending and welding or stamping steel plates, and the edges of the die cavity are supported by angle steel or channel steel.
The side wall and the bottom of the prefabricated member are connected in a chamfering transitional manner, so that sludge can be conveniently removed; the edges of the end face and the upper surface of the bottom of the prefabricated member are respectively provided with a butt joint groove 9.
Through holes for forming hanging holes 4 after pouring are formed in the two side walls of the die cavity 2, and the two through holes are connected through cylinders.
The concrete comprises the following raw materials in parts by weight: 65 parts of coarse and fine aggregate, 15 parts of aluminate cement, 8 parts of fly ash and 2 parts of high-efficiency water reducer, wherein the high-efficiency water reducer is alcohol waste liquid dry powder and the weight ratio of the calcium sulfonate water reducer is 1:1.
The coarse and fine aggregate is a mixture of river sand and limestone or granite particles, and the weight ratio of the river sand to the limestone or granite particles is 1:1-1.5; the fineness modulus of the river sand is 2.2-3.0, and the particle diameter of the limestone or granite is 5-30 mm.
The preparation method of the calcium sulfonate water reducer comprises the steps of taking sulfite pulp waste liquid as a raw material, adding sodium hydroxide to adjust the PH value to 9, introducing air to react for 10 hours at 75 ℃, adding potassium sulfate, reacting for 45 minutes at 75 ℃, filtering, and drying to obtain the calcium sulfonate water reducer.
The retaining wall prefabricated member production method has the advantages that the retaining wall prefabricated member production method can be used for water conservancy construction, municipal drainage systems or highway bridges and culverts.
Example 3:
referring to fig. 1 to 3, there is shown a method of producing a retaining wall preform, the method comprising the steps of:
(1) Designing a pouring die required by the corresponding shape of the retaining wall prefabricated member;
(2) Uniformly coating mold release oil or filling a plastic film on the inner side of the mold;
(3) Placing a bottom die, placing a reinforcing steel bar member for enhancing the strength of the precast member of the retaining wall, fixing the reinforcing steel bar member, and sleeving a die cavity; the steel bar member comprises a vertical steel bar structure 6, a longitudinal steel bar structure 7 and an inverted U-shaped steel bar structure 8; the vertical steel bar structures 6 and the inverted U-shaped steel bar structures 8 are connected to form unit components, and the unit components are connected through the longitudinal steel bar structures 7 to form steel bar components;
(4) Pouring the concrete required by the pouring of the components from the top of the die, uniformly spreading the concrete to two ends, vibrating the concrete by using a direct-insert vibrator for 1-3 minutes, and trowelling the concrete surface on the notch of the die after the air bubbles are discharged from the concrete; covering a cover plate;
(5) And (3) curing the precast concrete in situ, wherein the curing time is Wen Dayu h.C. And then the side mold can be disassembled, and the temperature reaches 1500 h.C during water spraying maintenance. And then the inner mould is disassembled, prefabricated parts are piled up intensively after the inner mould is disassembled, and the curing time and temperature reach 2000h and C. The product can be delivered for use.
The time and temperature are time and outdoor temperature, the time unit is hour, the time value is a positive integer which is more than or equal to 16, the outdoor temperature unit is the temperature of celsius, the outdoor temperature is more than or equal to 20 ℃, and the outdoor temperature is a positive integer.
After the in-situ casting is finished, the maintenance time can be counted in time, and the casting is finished at 15 pm, namely, the time is counted from 15 pm; taking 15 pm to 21 pm in a time period, wherein the outdoor temperature is 30 ℃ and the hour temperature is 6×30=180 h· 6 hours; 21 pm to 9 am the next day for 12 hours, hour Wen Wei x 28=336 h·; and adding the numerical values of the two time periods, namely 180+336=516 h & deg.C which is more than 500h & deg.C, and removing the die cover plate, the side wall die and the end cover die of the die.
Sprinkling water for maintenance, wherein the outdoor temperature is 30 ℃ from 9 a.m. to 21 a.m., and the outdoor temperature is Wen Wei multiplied by 12 multiplied by 30=360 h; 21 pm to 9 am, the outdoor temperature is 28 ℃, when the outdoor temperature is Wen Wei, the temperature is Wen Wei multiplied by 28=336 h; 9 to 21 in the morning, the outdoor temperature is 32 ℃, when Wen Wei 12 ×32=384 h·; 21 pm to 9 am, the outdoor temperature is 30 ℃, when Wen Wei is 12×30=360 h·; 9 to 14 points in the morning, wherein the outdoor temperature is 31 ℃, and the hour temperature is 5×31=155 h·; and accumulating the values at the stage, namely 360+336+384+360+155=1595 being greater than 1500 h.DEG C, namely dismantling the die cavity, lifting the prefabricated part off the die cavity, and carrying out stacking maintenance.
Continuing maintenance, and when the accumulated value of all time and temperature reaches 2000h DEG C, from 14 pm to 21 pm, the outdoor temperature is 31 ℃, and the time and temperature is 7 multiplied by 31=217 h DEG C; 21 pm to 9 am, the outdoor temperature is 29 ℃, when Wen Wei is 12×29=348 h·; 9 to 21 in the morning, the outdoor temperature is 32 ℃, when Wen Wei 12 ×32=384 h·; 21 pm to 9 am, the outdoor temperature is 30 ℃, when Wen Wei is 12×30=360 h·; 9 to 21 in the morning, the outdoor temperature is 33 ℃, and when the outdoor temperature is Wen Wei x 33=396 h·; 21 pm to 9 am, the outdoor temperature is 30 ℃, when Wen Wei is 12×30=360 h·; the values at this stage are accumulated, namely 217+348+384+360+396+360=2065 reaches more than 2000 h.DEG C, which indicates that the curing standard is met, and the product can be shipped for use.
The mold comprises a bottom mold 1, a mold cavity 2, a mold cover plate 3 and a reinforcing steel member; the steel bar member is fixed on the bottom die 1, the die cavity 2 is sleeved on the steel bar member, the position is adjusted, the die cavity 2 is fixed above the bottom die 1 through the bolts 5, and the die cover plate 3 is covered on the die cavity 2.
The die cavity 2 is formed by bending and welding or stamping steel plates, and the edges of the die cavity are supported by angle steel or channel steel.
The side wall and the bottom of the prefabricated member are connected in a chamfering transitional manner, so that sludge can be conveniently removed; the edges of the end face and the upper surface of the bottom of the prefabricated member are respectively provided with a butt joint groove 9.
Through holes for forming hanging holes 4 after pouring are formed in the two side walls of the die cavity 2, and the two through holes are connected through cylinders.
The concrete comprises the following raw materials in parts by weight: 70 parts of coarse and fine aggregate, 20 parts of aluminate cement, 10 parts of fly ash and 3 parts of high-efficiency water reducer, wherein the high-efficiency water reducer is alcohol waste liquid dry powder and the weight ratio of the calcium sulfonate water reducer is 1:1.
The coarse and fine aggregate is a mixture of river sand and limestone or granite particles, and the weight ratio of the river sand to the limestone or granite particles is 1:1-1.5; the fineness modulus of the river sand is 2.2-3.0, and the particle diameter of the limestone or granite is 5-30 mm.
The preparation method of the calcium sulfonate water reducer comprises the steps of taking sulfite pulp waste liquid as a raw material, adding sodium hydroxide to adjust the PH value to 10, introducing air to react for 12 hours at 80 ℃, adding potassium sulfate, reacting for 50 minutes at 80 ℃, filtering, and drying to obtain the calcium sulfonate water reducer.
The product obtained by the production method of the retaining wall prefabricated member is applied to water conservancy construction, municipal drainage systems or highway bridges and culverts.
The retaining wall prefabricated member can be used independently and assembled; when being used alone, the novel soil conditioner can be suitable for places which are easy to collapse or loose and easy to slide; when the water retaining device is assembled and used, the water retaining device can retain soil and can be used for introducing water; according to canal engineering design, dig the ditch according to canal line, hoist two retaining wall prefabs in proper order in the retaining wall prefab place of needs installation, during the hoist and mount, firstly with the prefab fixed mounting of first hoist and mount, hoist and mount second prefab again, the second prefab aligns and installs with first prefab symmetry, assembles, forms canal shape, fills concrete on the butt joint groove again, prevents to leak, realizes the function of canal promptly.
The construction method adopted by the utility model comprises the following steps:
(1) And (3) clear base paying-off: taking the width which is 20-30 cm larger than the maximum width of the prefabricated member as a clear base line, and marking and scribing by adopting lime powder marks;
(2) Digging in the lime powder marking area by using an excavator or manually, reasonably stacking earthwork, leveling the bottom by using a manual work, and determining the installed side line and the bottom elevation;
(3) Hoisting the prefabricated member transported to the construction site by using an excavator, placing the hoisted prefabricated member into a base groove, aligning a side line and leveling the bottom elevation, and then removing a lifting hook;
(4) After the installation is finished, correcting the position error of the installed prefabricated member, reaching the design requirement, and reinforcing to prevent deformation;
(5) Filling a U-shaped butt joint groove at the butt joint part of the prefabricated parts with cement fine mortar, wherein the weight ratio of cement to fine sand is 1:4-5, and the mortar is well agglomerated by hand;
(6) After the joint mortar is coagulated, backfilling gaps at two sides of the prefabricated member, compacting, and transporting residual soil materials and the like.

Claims (7)

1. A production method of a retaining wall prefabricated member is characterized by comprising the following steps of: the method comprises the following steps:
(1) Designing a pouring die required by the corresponding shape of the retaining wall prefabricated member; the mold comprises a bottom mold (1), a mold cavity (2), a mold cover plate (3) and a reinforcement member; the steel bar member is fixed on the bottom die (1), the die cavity (2) is sleeved on the steel bar member, the position is adjusted, the die cavity (2) is fixed above the bottom die (1) through bolts (5), and a die cover plate (3) is covered on the die cavity (2);
(2) Uniformly coating mold release oil or filling a plastic film on the inner side of the mold;
(3) Placing a bottom die, placing a reinforcing steel bar member for enhancing the strength of the precast member of the retaining wall, fixing the reinforcing steel bar member, and sleeving a die cavity; the steel bar component comprises a vertical steel bar structure (6), a longitudinal steel bar structure (7) and an inverted U-shaped steel bar structure (8); the vertical steel bar structure (6) and the inverted U-shaped steel bar structure (8) are connected to form a unit component, and the unit component is connected to form a steel bar component through the longitudinal steel bar structure (7);
(4) Pouring the concrete required by the pouring of the components from the top of the die, uniformly spreading the concrete to two ends, vibrating the concrete by using a direct-insert vibrator for 1-3 minutes, and trowelling the concrete surface on the notch of the die after the air bubbles are discharged from the concrete; covering a cover plate; the concrete comprises the following raw materials in parts by weight: 60-70 parts of coarse and fine aggregate, 10-20 parts of aluminate cement, 5-10 parts of fly ash and 1-3 parts of high-efficiency water reducer, wherein the high-efficiency water reducer is alcohol waste liquid dry powder and calcium sulfonate water reducer with the weight ratio of 1:1; the preparation method of the calcium sulfonate water reducer comprises the steps of taking sulfite pulp waste liquid as a raw material, adding sodium hydroxide to adjust the PH value to 8-10, introducing air to react for 10-12 hours at 70-80 ℃, adding potassium sulfate, reacting for 40-50 minutes at 70-80 ℃, filtering, and drying to obtain the calcium sulfonate water reducer;
(5) The prefabricated parts of the retaining wall after concrete pouring are cured on site, the side mold can be disassembled after the curing time is Wen Dayu h and the temperature reaches 1500h and the internal mold can be disassembled after the water spraying curing time is up to the temperature of 2000h and the prefabricated parts are stacked in a concentrated manner after the internal mold is disassembled, and the prefabricated parts can be delivered for use after the curing time is up to the temperature of more than 2000h and the temperature.
2. The method of producing a retaining wall preform according to claim 1, wherein: the time and temperature are time and outdoor temperature, the time unit is hour, the time value is a positive integer which is more than or equal to 16, the outdoor temperature unit is the temperature, the outdoor temperature is more than or equal to 20 ℃, and the outdoor temperature is a positive integer.
3. The method of producing a retaining wall preform according to claim 1, wherein: the die cavity (2) is formed by bending and welding or stamping steel plates, and the edge of the die cavity is supported by angle steel or channel steel.
4. The method of producing a retaining wall preform according to claim 1, wherein: the side wall and the bottom of the prefabricated member are in chamfer transition connection, so that sludge can be conveniently removed; the edges of the end face and the upper surface of the bottom of the prefabricated member are respectively provided with a butt joint groove (9).
5. The method of producing a retaining wall preform according to claim 1, wherein: through holes which form hanging holes (4) after pouring are formed in the two side walls of the die cavity (2), and the two through holes are connected through cylinders.
6. The method of producing a retaining wall preform according to claim 1, wherein: the coarse and fine aggregate is a mixture of river sand and limestone or granite particles, and the weight ratio of the river sand to the limestone or granite particles is 1:1-1.5; the fineness modulus of the river sand is 2.2-3.0, and the particle size of the limestone or granite particles is 5-30 mm.
7. Use of the product obtained by the method for producing a retaining wall preform according to claim 1 in water works, municipal drainage systems or highway bridges and culverts.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100754910B1 (en) * 2006-10-10 2007-09-03 (주)한남개발 Concrete paving blocks for side walk and road using waste stone and the making method thereof
CN103304213A (en) * 2013-05-27 2013-09-18 北京航空航天大学 Method for making cored building material block by using solidified soda residue soil
CN105712678A (en) * 2016-01-28 2016-06-29 中国建筑股份有限公司 Self-decoration reactive powder concrete and application hanging plate and application method thereof
CN106045423A (en) * 2016-05-25 2016-10-26 象州县科学技术局 Method for producing prefabricated member of concrete ditch by using coal gangue
CN106827192A (en) * 2017-01-23 2017-06-13 四川宏洲新型材料股份有限公司 A kind of retaining wall prefabricated-member mould

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100754910B1 (en) * 2006-10-10 2007-09-03 (주)한남개발 Concrete paving blocks for side walk and road using waste stone and the making method thereof
CN103304213A (en) * 2013-05-27 2013-09-18 北京航空航天大学 Method for making cored building material block by using solidified soda residue soil
CN105712678A (en) * 2016-01-28 2016-06-29 中国建筑股份有限公司 Self-decoration reactive powder concrete and application hanging plate and application method thereof
CN106045423A (en) * 2016-05-25 2016-10-26 象州县科学技术局 Method for producing prefabricated member of concrete ditch by using coal gangue
CN106827192A (en) * 2017-01-23 2017-06-13 四川宏洲新型材料股份有限公司 A kind of retaining wall prefabricated-member mould

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