CN111805724A - Tubular pile preparation process - Google Patents
Tubular pile preparation process Download PDFInfo
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- CN111805724A CN111805724A CN202010691238.9A CN202010691238A CN111805724A CN 111805724 A CN111805724 A CN 111805724A CN 202010691238 A CN202010691238 A CN 202010691238A CN 111805724 A CN111805724 A CN 111805724A
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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
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/22—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts
- B28B21/30—Centrifugal moulding
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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
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
- B28B17/0081—Process control
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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
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/92—Methods or apparatus for treating or reshaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/003—Methods for mixing
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- 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
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- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/024—Steam hardening, e.g. in an autoclave
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Automation & Control Theory (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention relates to a tubular pile preparation process, which comprises the following steps: uniformly stirring the raw materials to form a concrete material; outputting the concrete material to the inner cavity of the pipe mould for material distribution, and adding prestress to the blank after the material distribution is finished; the mould rotates to carry out centrifugal dehydration on the embryo body; transferring the embryo body into a steam curing pool for normal pressure curing; and (5) hoisting the semi-finished product into a still kettle for high-pressure curing. According to the invention, the central control module is added in the system using the process, and various raw materials with different proportions are selected, and various parameters in various working procedures are set to corresponding preset values according to the proportions of the raw materials, so that the process can carry out targeted tubular pile preparation on the raw materials with specified proportions, and the preparation efficiency of the process is effectively improved.
Description
Technical Field
The invention relates to the technical field of tubular pile preparation, in particular to a tubular pile preparation process.
Background
The precast concrete tubular pile has wide application range and is suitable for the foundations of various buildings and structures. The concrete strength of the pile body is high, generally not lower than C60(C60 represents concrete with the standard compressive strength standard value of a cube with the side length of 150mm under the standard curing condition being 60N/mm 2), and the concrete strength of the prestressed high-strength concrete pipe pile is not lower than C80(C80 represents concrete with the standard compressive strength standard value of the cube with the side length of 150mm under the standard curing condition being 80N/mm 2).
The production of the high-strength concrete pipe pile mainly comprises a double-steaming process, a non-autoclaving process or a double-non-steaming process at present, wherein the mainstream process is the double-steaming process, so that the strength of concrete can be ensured to the maximum extent, and the production efficiency can be effectively improved; the pressure steaming or double-free process reduces the working procedures of the main flow process part, but the fluctuation of the intensity is larger, the production efficiency can not be effectively ensured, and the effective capacity of the equipment is sacrificed.
Meanwhile, because the raw materials for preparing the tubular pile in the prior art have differences in the mixture ratio, the existing tubular pile preparation process and the system using the process cannot correspondingly adjust various parameters in the process according to different raw material mixture ratios, so that the strength of the prepared tubular pile does not meet the standard when the raw material mixture ratio is changed, and the preparation efficiency is low.
Disclosure of Invention
Therefore, the invention provides a tubular pile preparation process, which is used for solving the problem of low preparation efficiency caused by the fact that parameters in the process cannot be flexibly adjusted according to the raw material proportion in the prior art.
In order to achieve the above object, the present invention provides a tubular pile preparation process, comprising:
step 1: the raw materials are sequentially added into the stirrer according to the specified proportion and the specified sequence, the stirrer uniformly stirs the raw materials, the central control module can detect the rotating speed wa and the stirring time of the stirrer during stirring, and when the stirrer stirs the raw materials at the specified rotating speed for the specified time, the central control module judges that the stirrer uniformly stirs the raw materials to form the concrete material and outputs the concrete material out of the stirrer;
step 2: after the stirring of the stirrer is finished, outputting concrete materials to the inner cavity of the pipe mould to distribute the materials, closing the mould when the materials are distributed, tensioning the closed blank body to add prestress to the blank body, detecting a tensile force F applied to the blank body by the pipe mould by the central control module when the prestress is added to the blank body, and judging that the prestress is added by the central control module when the tensile force F reaches a specified value;
and step 3: after the tension force is added, the central control module controls the pipe die to rotate so as to carry out centrifugal dehydration on the blank; in the dehydration process, the central control module detects the rotation speed wb and the rotation time tb of the pipe die, and when the pipe die rotates at the specified rotation speed for the specified time, the central control module judges that the centrifugation is finished;
and 4, step 4: after centrifugation is finished, discharging grout through pile holes of the pipe die, transferring the blank into a steam curing pool, performing normal pressure curing after standing, wherein the central control module can detect the curing temperature Ta and the curing time tc in real time during the normal pressure curing, and when the pipe die stands for a specified time in the environment with a specified temperature in the steam curing pool, the central control module judges that the normal pressure curing of the blank is finished;
and 5: after the normal pressure maintenance is completed, the central control module controls the pipe die to release tension, the pipe die is detached after the tension is released to obtain a semi-finished product of the pipe pile, the semi-finished product is hung into the autoclave for high pressure maintenance, when the high pressure maintenance is performed, the central control module can detect the temperature Tb and the pressure P in the autoclave and the maintenance time td of the semi-finished product in real time, when the semi-finished product is maintained for a specified time in a specified temperature environment and a specified pressure environment, the central control module judges that the high pressure maintenance is completed, and the semi-finished product is taken out of the autoclave to obtain a finished pile.
Further, the raw materials in the step 1 comprise cement, river sand, crushed stone, an additive and stirring water; when raw materials are stirred, cement, river sand and gravel are sequentially added into a stirring kettle and are stirred for the first time, a central control module records the stirring time tax of the first stirring in the stirring process, when the first stirring time reaches a specified value, the central control module judges that the raw materials are uniformly mixed and adds stirring water mixed with an additive into the stirring kettle for secondary stirring, the central control module records the stirring time tay of the secondary stirring in the stirring process, and when the secondary stirring time reaches the specified value, the central control module judges that the preparation of the concrete material of the tubular pile is finished.
Further, a preset proportioning matrix group R0 and a preset preparation scheme matrix group A0 are arranged in the central control module; for the preset proportioning matrix groups R0 and R0(R1, R2, R3 and R4), wherein R1 is a first preset proportioning matrix, R2 is a second preset proportioning matrix, R3 is a third preset proportioning matrix, and R4 is a fourth preset proportioning matrix; for the ith preset proportioning matrix Ri, Ri (mni, mhi, msi, mwi, mui), wherein mni is the ith preset mass of cement, mhi is the ith preset mass of river sand, msi is the ith preset mass of crushed stone, mwi is the ith preset mass of admixture, and mui is the ith preset mass of stirring water;
for a preset preparation scheme matrix group A0(J0, F0, S0, C0 and G0), wherein J0 is a preset operation parameter matrix group of the stirrer, F0 is a preset tensile force matrix, S0 is a preset centrifugal matrix group, C0 is a preset normal pressure maintenance matrix group, and G0 is a preset high pressure maintenance matrix group;
for a preset operation parameter matrix group of the blenders, J0 and J0(J1, J2, J3 and J4), wherein J1 is a preset operation parameter matrix of the first blender, J2 is a preset operation parameter matrix of the second blender, J3 is a preset operation parameter matrix of the third blender, and J4 is a preset operation parameter matrix of the fourth blender; presetting an operation matrix Ji, Ji (wai, taxi, tayi) for the ith stirrer, wherein wai is the preset rotating speed of the ith stirrer, taxi is the ith preset stirring time when the stirrer stirs for one time, and tayi is the ith preset stirring time when the stirrer stirs for the second time;
for the preset tension matrix F0, F0(F1, F2, F3, F4), where F1 is a first preset tension, F2 is a second preset tension, F3 is a third preset tension, and F4 is a fourth preset tension;
for the preset centrifugal matrix set S0, S0(S1, S2, S3, S4), wherein S1 is a first preset centrifugal matrix, S2 is a second preset centrifugal matrix, S3 is a third preset centrifugal matrix, and S4 is a fourth preset centrifugal matrix; for the ith preset centrifugal matrix Si, Si (wbi, tbi), wherein wbi is the ith preset dehydration rotation speed, and tbi is the ith preset dehydration time;
for a preset normal pressure maintenance matrix group C0, C0(C1, C2, C3, C4), wherein C1 is a first preset normal pressure maintenance matrix, C2 is a second preset normal pressure maintenance matrix, C3 is a third preset normal pressure maintenance matrix, and C4 is a fourth preset normal pressure maintenance matrix; for the ith preset normal pressure curing matrix Ci, Ci (Tai, tci), wherein Tai is the ith preset normal pressure curing temperature, and tci is the ith preset normal pressure curing time;
for the preset high-pressure maintenance matrix groups G0 and G0(G1, G2, G3 and G4), wherein G1 is a first preset high-pressure maintenance matrix, G2 is a second preset high-pressure maintenance matrix, G3 is a third preset high-pressure maintenance matrix, and G4 is a fourth preset high-pressure maintenance matrix; and (4) presetting an ith high-pressure curing matrix Gi, Gi (Tbi, tdi, Pi), wherein Tbi is the ith preset high-pressure curing temperature, tdi is the ith preset high-pressure curing time length, and Pi is the ith preset high-pressure curing air pressure.
Further, when the tubular pile raw material proportion is selected, a preset proportion matrix is selected from a preset proportion matrix group R0 through the central control module:
when an R1 matrix is selected, the central control module adjusts the preset mass of cement to mn1 according to parameters in the R1 matrix, adjusts the preset mass of river sand to mh1, adjusts the preset mass of broken stone to ms1, adjusts the preset mass of an additive to mw1, and adjusts the preset mass of stirring water to mu 1;
when an R2 matrix is selected, the central control module adjusts the preset mass of cement to mn2 according to parameters in the R2 matrix, adjusts the preset mass of river sand to mh2, adjusts the preset mass of broken stone to ms2, adjusts the preset mass of an additive to mw2, and adjusts the preset mass of stirring water to mu 2;
when an R3 matrix is selected, the central control module adjusts the preset mass of cement to mn3 according to parameters in the R3 matrix, adjusts the preset mass of river sand to mh3, adjusts the preset mass of broken stone to ms3, adjusts the preset mass of an additive to mw3, and adjusts the preset mass of stirring water to mu 3;
when an R4 matrix is selected, the central control module adjusts the preset mass of cement to mn4 according to parameters in the R4 matrix, adjusts the preset mass of river sand to mh4, adjusts the preset mass of broken stone to ms4, adjusts the preset mass of an additive to mw4, and adjusts the preset mass of stirring water to mu 4;
and when the central control module finishes determining the mixture ratio of the raw materials, the central control module starts to operate the process to prepare the tubular pile.
Further, when the central control module selects the first preset proportioning matrix R1, the central control module selects a J1 matrix from a J0 matrix group, selects an F1 matrix from an F0 matrix, selects an S1 matrix from an S0 matrix group, selects a C1 matrix from a C0 matrix group, selects a G1 from a G0 matrix group in a summary manner, establishes a first preset preparation scheme matrix group a1(J0, F0, S0, C0, G0), and adjusts the preset rotating speed of the mixer to wa1 according to parameters in the a1 matrix group, adjusts the preset time of primary mixing of the mixer to tax1, and adjusts the preset time of secondary mixing of the mixer to tayi; setting a preset tension force to be F1; setting the preset dehydration rotating speed as wb1 and the preset dehydration time as tb 1; setting a preset normal pressure curing temperature Ta1, and i, setting a preset normal pressure curing time tc 1; setting the preset high-pressure maintenance temperature to Tb1, setting the preset high-pressure maintenance time to td1, and adjusting the preset high-pressure maintenance air pressure to P1;
when the central control module selects a first preset proportioning matrix R2, the central control module selects a J2 matrix from a J0 matrix group, selects an F2 matrix from an F0 matrix, selects an S2 matrix from an S0 matrix group, selects a C2 matrix from a C0 matrix group, collects a G2 matrix from a G0 matrix group, establishes a first preset preparation scheme matrix group A2(J0, F0, S0, C0 and G0), and adjusts the preset rotating speed of the stirrer to wa2, the preset time of primary stirring of the stirrer to tax2 and the preset time of secondary stirring of the stirrer to tayi according to parameters in the A2 matrix group; setting a preset tension force to be F2; setting the preset dehydration rotating speed as wb2 and the preset dehydration time as tb 2; setting a preset normal pressure curing temperature Ta2, and i, setting a preset normal pressure curing time tc 2; setting the preset high-pressure maintenance temperature to Tb2, setting the preset high-pressure maintenance time to td2, and adjusting the preset high-pressure maintenance air pressure to P2;
when the central control module selects a first preset proportioning matrix R3, the central control module selects a J3 matrix from a J0 matrix group, selects an F3 matrix from an F0 matrix, selects an S3 matrix from an S0 matrix group, selects a C3 matrix from a C0 matrix group, collects a G3 matrix from a G0 matrix group, establishes a first preset preparation scheme matrix group A3(J0, F0, S0, C0 and G0), and adjusts the preset rotating speed of the stirrer to wa3, the preset time of primary stirring of the stirrer to tax3 and the preset time of secondary stirring of the stirrer to tayi according to parameters in the A3 matrix group; setting a preset tension force to be F3; setting the preset dehydration rotating speed as wb3 and the preset dehydration time as tb 3; setting a preset normal pressure curing temperature Ta3, and i, setting a preset normal pressure curing time tc 3; setting the preset high-pressure maintenance temperature to Tb3, setting the preset high-pressure maintenance time to td3, and adjusting the preset high-pressure maintenance air pressure to P3;
when the central control module selects a first preset proportioning matrix R4, the central control module selects a J4 matrix from a J0 matrix group, selects an F4 matrix from an F0 matrix, selects an S4 matrix from an S0 matrix group, selects a C4 matrix from a C0 matrix group, collects a G4 matrix from a G0 matrix group, establishes a first preset preparation scheme matrix group A4(J0, F0, S0, C0 and G0), and adjusts the preset rotating speed of the stirrer to wa4, the preset time of primary stirring of the stirrer to tax4 and the preset time of secondary stirring of the stirrer to tayi according to parameters in the A4 matrix group; setting a preset tension force to be F4; setting the preset dehydration rotating speed as wb4 and the preset dehydration time as tb 4; setting a preset normal pressure curing temperature Ta4, and i, setting a preset normal pressure curing time tc 4; the preset high-pressure curing temperature is set to Tb4, the preset high-pressure curing time is set to td4, and the preset high-pressure curing air pressure is adjusted to P4.
Further, when the concrete material is conveyed to the inner cavity of the die mould in the step 2 for distributing, a vibrating rod and a vibrating plate are used for enabling the concrete material to rapidly penetrate through the reinforcement cage to complete the distributing process.
Further, the additive is a polycarboxylic acid water reducing agent.
Furthermore, a part of admixture with activity is mixed in the cement.
Further, the admixture with activity is one or more of micro-bead powder, silica fume, metakaolin, slag powder, anhydrite powder and the like.
Compared with the prior art, the tubular pile manufacturing process has the advantages that the central control module is added in a system using the process, various raw materials in different proportions are selected, various parameters in various procedures are set to corresponding preset values according to the raw material proportions, the process can carry out targeted tubular pile manufacturing on the raw materials in the specified proportions, and accordingly manufacturing efficiency of the process is effectively improved.
Meanwhile, the admixture is doped when the concrete material is prepared, so that the cost can be effectively reduced, and the workability of the concrete material is adjusted, thereby further improving the preparation efficiency of the process.
Furthermore, a preset proportioning matrix group R0 and a preset preparation scheme matrix group A0 are arranged in the central control module, a corresponding proportioning matrix Ri is selected from the R0 matrix group, and corresponding parameters are selected from the A0 matrix group according to the Ri to establish an Ai matrix group, and the central control module can adjust and monitor various parameters by taking the parameters in the Ai matrix group as a reference, so that the preparation of the tubular pile selecting the raw materials with the specified proportioning is completed, and the preparation efficiency of the process is further improved.
Further, the preset preparation scheme matrix group a0 includes a mixer preset operation parameter matrix group J0, a preset tension matrix F0, a preset centrifugal matrix group S0, a preset normal pressure maintenance matrix group C0 and a preset high pressure maintenance matrix group G0, and by independently setting the operation parameters of each process, the central control module can quickly adjust the operation parameters of the equipment of the process in the single process, so that the preparation efficiency of the process is further improved.
Further, still use vibrating spear and vibration board in the technology so that the concrete material passes the steel reinforcement cage fast and accomplishes the cloth process to can make the concrete material be convenient for plastic and compound die, effectively improve the intensity of the tubular pile of technology preparation, further improve the preparation efficiency of technology.
Furthermore, the admixture is a polycarboxylate water reducer, and the polycarboxylate water reducer is mixed in the raw materials, so that the water reducing rate of the raw materials can be effectively increased, the water consumption is reduced, the strength of the tubular pile prepared by the process is improved, and the preparation efficiency of the process is further improved.
Furthermore, part of active admixture is mixed in the cement, the active admixture is one or more of micro-bead powder and silica fume, and the strength of the tubular pile prepared by the process can be effectively improved and the preparation efficiency of the process can be further improved by mixing the micro-bead powder and/or the silica fume in the cement.
Furthermore, the invention is an improved double-steaming process, which not only meets the production efficiency of a workshop, but also reduces the steam energy consumption, stabilizes the productivity of the workshop and ensures the strength and quality of products under the environment of an environmental protection policy.
Furthermore, the production process basically maintains the production process flow of the existing mainstream tubular pile, additional equipment is not needed, meanwhile, the steam cost can be greatly saved, the production process ensures the strength and the quality of the tubular pile, also ensures the normal production of a workshop to the maximum extent, and the production efficiency is not influenced.
Drawings
Fig. 1 is a process flow diagram of the tubular pile preparation process of the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 shows a process flow chart of the tube pile manufacturing process according to the present invention. The process comprises the following steps:
step 1: the raw materials are sequentially added into the stirrer according to the specified proportion and the specified sequence, the stirrer uniformly stirs the raw materials, the central control module can detect the rotating speed wa and the stirring time of the stirrer during stirring, and when the stirrer stirs the raw materials at the specified rotating speed for the specified time, the central control module judges that the stirrer uniformly stirs the raw materials to form the concrete material and outputs the concrete material out of the stirrer;
step 2: after the stirring of the stirrer is finished, outputting concrete materials to the inner cavity of the pipe mould to distribute the materials, closing the mould when the materials are distributed, tensioning the closed blank body to add prestress to the blank body, detecting a tensile force F applied to the blank body by the pipe mould by the central control module when the prestress is added to the blank body, and judging that the prestress is added by the central control module when the tensile force F reaches a specified value;
and step 3: after the tension force is added, the central control module controls the pipe die to rotate so as to carry out centrifugal dehydration on the blank; in the dehydration process, the central control module detects the rotation speed wb and the rotation time tb of the pipe die, and when the pipe die rotates at the specified rotation speed for the specified time, the central control module judges that the centrifugation is finished;
and 4, step 4: after centrifugation is finished, discharging grout through pile holes of the pipe die, transferring the blank into a steam curing pool, performing normal pressure curing after standing, wherein the central control module can detect the curing temperature Ta and the curing time tc in real time during the normal pressure curing, and when the pipe die stands for a specified time in the environment with a specified temperature in the steam curing pool, the central control module judges that the normal pressure curing of the blank is finished;
and 5: after the normal pressure maintenance is completed, the central control module controls the pipe die to release tension, the pipe die is detached after the tension is released to obtain a semi-finished product of the pipe pile, the semi-finished product is hung into the autoclave for high pressure maintenance, when the high pressure maintenance is performed, the central control module can detect the temperature Tb and the pressure P in the autoclave and the maintenance time td of the semi-finished product in real time, when the semi-finished product is maintained for a specified time in a specified temperature environment and a specified pressure environment, the central control module judges that the high pressure maintenance is completed, and the semi-finished product is taken out of the autoclave to obtain a finished pile.
Specifically, the raw materials in the step 1 comprise cement, river sand, crushed stone, an additive and stirring water; when raw materials are stirred, cement, river sand and gravel are sequentially added into a stirring kettle and are stirred for the first time, a central control module records the stirring time tax of the first stirring in the stirring process, when the first stirring time reaches a specified value, the central control module judges that the raw materials are uniformly mixed and adds stirring water mixed with an additive into the stirring kettle for secondary stirring, the central control module records the stirring time tay of the secondary stirring in the stirring process, and when the secondary stirring time reaches the specified value, the central control module judges that the preparation of the concrete material of the tubular pile is finished.
Specifically, a preset proportioning matrix group R0 and a preset preparation scheme matrix group A0 are arranged in the central control module; for the preset proportioning matrix groups R0 and R0(R1, R2, R3 and R4), wherein R1 is a first preset proportioning matrix, R2 is a second preset proportioning matrix, R3 is a third preset proportioning matrix, and R4 is a fourth preset proportioning matrix; for the ith preset proportioning matrix Ri, Ri (mni, mhi, msi, mwi, mui), wherein mni is the ith preset mass of cement, mhi is the ith preset mass of river sand, msi is the ith preset mass of crushed stone, mwi is the ith preset mass of admixture, and mui is the ith preset mass of stirring water.
For a preset preparation scheme matrix group A0(J0, F0, S0, C0 and G0), wherein J0 is a preset operation parameter matrix group of the stirring machine, F0 is a preset tensile force matrix, S0 is a preset centrifugal matrix group, C0 is a preset normal pressure maintenance matrix group, and G0 is a preset high pressure maintenance matrix group.
For a preset operation parameter matrix group of the blenders, J0 and J0(J1, J2, J3 and J4), wherein J1 is a preset operation parameter matrix of the first blender, J2 is a preset operation parameter matrix of the second blender, J3 is a preset operation parameter matrix of the third blender, and J4 is a preset operation parameter matrix of the fourth blender; and presetting an operation matrix Ji, Ji (wai, taxi, tayi) for the ith stirrer, wherein wai is the preset rotating speed of the ith stirrer, taxi is the ith preset stirring time when the stirrer stirs for one time, and tayi is the ith preset stirring time when the stirrer stirs for the second time.
For the predetermined tension matrix F0, F0(F1, F2, F3, F4), where F1 is a first predetermined tension, F2 is a second predetermined tension, F3 is a third predetermined tension, and F4 is a fourth predetermined tension.
For the preset centrifugal matrix set S0, S0(S1, S2, S3, S4), wherein S1 is a first preset centrifugal matrix, S2 is a second preset centrifugal matrix, S3 is a third preset centrifugal matrix, and S4 is a fourth preset centrifugal matrix; for the ith preset centrifugal matrix Si, Si (wbi, tbi), wherein wbi is the ith preset dehydration rotation speed, and tbi is the ith preset dehydration time.
For a preset normal pressure maintenance matrix group C0, C0(C1, C2, C3, C4), wherein C1 is a first preset normal pressure maintenance matrix, C2 is a second preset normal pressure maintenance matrix, C3 is a third preset normal pressure maintenance matrix, and C4 is a fourth preset normal pressure maintenance matrix; and (3) presetting an atmospheric curing matrix Ci, Ci (Tai, tci) for the ith, wherein Tai is the ith preset atmospheric curing temperature, and tci is the ith preset atmospheric curing time.
For the preset high-pressure maintenance matrix groups G0 and G0(G1, G2, G3 and G4), wherein G1 is a first preset high-pressure maintenance matrix, G2 is a second preset high-pressure maintenance matrix, G3 is a third preset high-pressure maintenance matrix, and G4 is a fourth preset high-pressure maintenance matrix; and (4) presetting an ith high-pressure curing matrix Gi, Gi (Tbi, tdi, Pi), wherein Tbi is the ith preset high-pressure curing temperature, tdi is the ith preset high-pressure curing time length, and Pi is the ith preset high-pressure curing air pressure.
Specifically, when the tubular pile raw material proportion is selected, a preset proportion matrix is selected from a preset proportion matrix group R0 through the central control module:
when the R1 matrix is selected, the central control module adjusts the preset mass of cement to mn1, the preset mass of river sand to mh1, the preset mass of broken stone to ms1, the preset mass of admixture to mw1 and the preset mass of stirring water to mu1 according to parameters in the R1 matrix.
When the R2 matrix is selected, the central control module adjusts the preset mass of cement to mn2, the preset mass of river sand to mh2, the preset mass of broken stone to ms2, the preset mass of admixture to mw2 and the preset mass of stirring water to mu2 according to parameters in the R2 matrix.
When the R3 matrix is selected, the central control module adjusts the preset mass of cement to mn3, the preset mass of river sand to mh3, the preset mass of broken stone to ms3, the preset mass of admixture to mw3 and the preset mass of stirring water to mu3 according to parameters in the R3 matrix.
When the R4 matrix is selected, the central control module adjusts the preset mass of cement to mn4, the preset mass of river sand to mh4, the preset mass of broken stone to ms4, the preset mass of admixture to mw4 and the preset mass of stirring water to mu4 according to parameters in the R4 matrix.
And when the central control module finishes determining the mixture ratio of the raw materials, the central control module starts to operate the process to prepare the tubular pile.
Specifically, when the central control module selects a first preset proportioning matrix R1, the central control module selects a J1 matrix from a J0 matrix group, selects an F1 matrix from an F0 matrix, selects an S1 matrix from an S0 matrix group, selects a C1 matrix from a C0 matrix group, selects a G1 from a G0 matrix group in a gathering manner, establishes a first preset preparation scheme matrix group A1(J0, F0, S0, C0 and G0), and adjusts the preset rotating speed of the stirrer to wa1 according to parameters in the A1 matrix group, adjusts the preset time of primary stirring of the stirrer to tax1, and adjusts the preset time of secondary stirring of the stirrer to tayi; setting a preset tension force to be F1; setting the preset dehydration rotating speed as wb1 and the preset dehydration time as tb 1; setting a preset normal pressure curing temperature Ta1, and i, setting a preset normal pressure curing time tc 1; the preset high-pressure curing temperature is set to Tb1, the preset high-pressure curing time is set to td1, and the preset high-pressure curing air pressure is adjusted to P1.
When the central control module selects a first preset proportioning matrix R2, the central control module selects a J2 matrix from a J0 matrix group, selects an F2 matrix from an F0 matrix, selects an S2 matrix from an S0 matrix group, selects a C2 matrix from a C0 matrix group, collects a G2 matrix from a G0 matrix group, establishes a first preset preparation scheme matrix group A2(J0, F0, S0, C0 and G0), and adjusts the preset rotating speed of the stirrer to wa2, the preset time of primary stirring of the stirrer to tax2 and the preset time of secondary stirring of the stirrer to tayi according to parameters in the A2 matrix group; setting a preset tension force to be F2; setting the preset dehydration rotating speed as wb2 and the preset dehydration time as tb 2; setting a preset normal pressure curing temperature Ta2, and i, setting a preset normal pressure curing time tc 2; the preset high-pressure curing temperature is set to Tb2, the preset high-pressure curing time is set to td2, and the preset high-pressure curing air pressure is adjusted to P2.
When the central control module selects a first preset proportioning matrix R3, the central control module selects a J3 matrix from a J0 matrix group, selects an F3 matrix from an F0 matrix, selects an S3 matrix from an S0 matrix group, selects a C3 matrix from a C0 matrix group, collects a G3 matrix from a G0 matrix group, establishes a first preset preparation scheme matrix group A3(J0, F0, S0, C0 and G0), and adjusts the preset rotating speed of the stirrer to wa3, the preset time of primary stirring of the stirrer to tax3 and the preset time of secondary stirring of the stirrer to tayi according to parameters in the A3 matrix group; setting a preset tension force to be F3; setting the preset dehydration rotating speed as wb3 and the preset dehydration time as tb 3; setting a preset normal pressure curing temperature Ta3, and i, setting a preset normal pressure curing time tc 3; the preset high-pressure curing temperature is set to Tb3, the preset high-pressure curing time is set to td3, and the preset high-pressure curing air pressure is adjusted to P3.
When the central control module selects a first preset proportioning matrix R4, the central control module selects a J4 matrix from a J0 matrix group, selects an F4 matrix from an F0 matrix, selects an S4 matrix from an S0 matrix group, selects a C4 matrix from a C0 matrix group, collects a G4 matrix from a G0 matrix group, establishes a first preset preparation scheme matrix group A4(J0, F0, S0, C0 and G0), and adjusts the preset rotating speed of the stirrer to wa4, the preset time of primary stirring of the stirrer to tax4 and the preset time of secondary stirring of the stirrer to tayi according to parameters in the A4 matrix group; setting a preset tension force to be F4; setting the preset dehydration rotating speed as wb4 and the preset dehydration time as tb 4; setting a preset normal pressure curing temperature Ta4, and i, setting a preset normal pressure curing time tc 4; the preset high-pressure curing temperature is set to Tb4, the preset high-pressure curing time is set to td4, and the preset high-pressure curing air pressure is adjusted to P4.
Specifically, when the concrete material is conveyed to the inner cavity of the die in the step 2 for distributing, the concrete material rapidly passes through the reinforcement cage by using the vibrating rod and the vibrating plate to complete the distributing process.
Specifically, the additive is a polycarboxylic acid water reducing agent.
Specifically, the cement is mixed with a part of active admixture.
Specifically, the active admixture is one or more of micro-bead powder, silica fume, metakaolin, slag powder, anhydrite powder and the like.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A tubular pile preparation technology is characterized by comprising the following steps:
step 1: the raw materials are sequentially added into the stirrer according to the specified proportion and the specified sequence, the stirrer uniformly stirs the raw materials, the central control module can detect the rotating speed wa and the stirring time of the stirrer during stirring, and when the stirrer stirs the raw materials at the specified rotating speed for the specified time, the central control module judges that the stirrer uniformly stirs the raw materials to form the concrete material and outputs the concrete material out of the stirrer;
step 2: after the stirring of the stirrer is finished, outputting concrete materials to the inner cavity of the pipe mould to distribute the materials, closing the mould when the materials are distributed, tensioning the closed blank body to add prestress to the blank body, detecting a tensile force F applied to the blank body by the pipe mould by the central control module when the prestress is added to the blank body, and judging that the prestress is added by the central control module when the tensile force F reaches a specified value;
and step 3: after the tension force is added, the central control module controls the pipe die to rotate so as to carry out centrifugal dehydration on the blank; in the dehydration process, the central control module detects the rotation speed wb and the rotation time tb of the pipe die, and when the pipe die rotates at the specified rotation speed for the specified time, the central control module judges that the centrifugation is finished;
and 4, step 4: after centrifugation is finished, discharging grout through pile holes of the pipe die, transferring the blank into a steam curing pool, performing normal pressure curing after standing, wherein the central control module can detect the curing temperature Ta and the curing time tc in real time during the normal pressure curing, and when the pipe die stands for a specified time in the environment with a specified temperature in the steam curing pool, the central control module judges that the normal pressure curing of the blank is finished;
and 5: after the normal pressure maintenance is completed, the central control module controls the pipe die to release tension, the pipe die is detached after the tension is released to obtain a semi-finished product of the pipe pile, the semi-finished product is hung into the autoclave for high pressure maintenance, when the high pressure maintenance is performed, the central control module can detect the temperature Tb and the pressure P in the autoclave and the maintenance time td of the semi-finished product in real time, when the semi-finished product is maintained for a specified time in a specified temperature environment and a specified pressure environment, the central control module judges that the high pressure maintenance is completed, and the semi-finished product is taken out of the autoclave to obtain a finished pile.
2. The tubular pile manufacturing process according to claim 1, wherein a part of admixture with activity is mixed in the cement.
3. The tubular pile preparation process of claim 2, wherein the active admixture is one or more of micro-bead powder, silica fume, metakaolin, slag powder, anhydrite powder and the like.
4. The tubular pile manufacturing process according to claim 3, wherein the raw materials in the step 1 include cement, river sand, crushed stone, an additive and water for stirring; when raw materials are stirred, cement, river sand and gravel are sequentially added into a stirring kettle and are stirred for the first time, a central control module records the stirring time tax of the first stirring in the stirring process, when the first stirring time reaches a specified value, the central control module judges that the raw materials are uniformly mixed and adds stirring water mixed with an additive into the stirring kettle for secondary stirring, the central control module records the stirring time tay of the secondary stirring in the stirring process, and when the secondary stirring time reaches the specified value, the central control module judges that the preparation of the concrete material of the tubular pile is finished.
5. The tubular pile preparation process of claim 4, wherein a preset proportioning matrix group R0 and a preset preparation scheme matrix group A0 are arranged in the central control module; for the preset proportioning matrix groups R0 and R0(R1, R2, R3 and R4), wherein R1 is a first preset proportioning matrix, R2 is a second preset proportioning matrix, R3 is a third preset proportioning matrix, and R4 is a fourth preset proportioning matrix; for the ith preset proportioning matrix Ri, Ri (mni, mhi, msi, mwi, mui), wherein mni is the ith preset mass of cement, mhi is the ith preset mass of river sand, msi is the ith preset mass of crushed stone, mwi is the ith preset mass of admixture, and mui is the ith preset mass of stirring water;
for a preset preparation scheme matrix group A0(J0, F0, S0, C0 and G0), wherein J0 is a preset operation parameter matrix group of the stirrer, F0 is a preset tensile force matrix, S0 is a preset centrifugal matrix group, C0 is a preset normal pressure maintenance matrix group, and G0 is a preset high pressure maintenance matrix group;
for a preset operation parameter matrix group of the blenders, J0 and J0(J1, J2, J3 and J4), wherein J1 is a preset operation parameter matrix of the first blender, J2 is a preset operation parameter matrix of the second blender, J3 is a preset operation parameter matrix of the third blender, and J4 is a preset operation parameter matrix of the fourth blender; presetting an operation matrix Ji, Ji (wai, taxi, tayi) for the ith stirrer, wherein wai is the preset rotating speed of the ith stirrer, taxi is the ith preset stirring time when the stirrer stirs for one time, and tayi is the ith preset stirring time when the stirrer stirs for the second time;
for the preset tension matrix F0, F0(F1, F2, F3, F4), where F1 is a first preset tension, F2 is a second preset tension, F3 is a third preset tension, and F4 is a fourth preset tension;
for the preset centrifugal matrix set S0, S0(S1, S2, S3, S4), wherein S1 is a first preset centrifugal matrix, S2 is a second preset centrifugal matrix, S3 is a third preset centrifugal matrix, and S4 is a fourth preset centrifugal matrix; for the ith preset centrifugal matrix Si, Si (wbi, tbi), wherein wbi is the ith preset dehydration rotation speed, and tbi is the ith preset dehydration time;
for a preset normal pressure maintenance matrix group C0, C0(C1, C2, C3, C4), wherein C1 is a first preset normal pressure maintenance matrix, C2 is a second preset normal pressure maintenance matrix, C3 is a third preset normal pressure maintenance matrix, and C4 is a fourth preset normal pressure maintenance matrix; for the ith preset normal pressure curing matrix Ci, Ci (Tai, tci), wherein Tai is the ith preset normal pressure curing temperature, and tci is the ith preset normal pressure curing time;
for the preset high-pressure maintenance matrix groups G0 and G0(G1, G2, G3 and G4), wherein G1 is a first preset high-pressure maintenance matrix, G2 is a second preset high-pressure maintenance matrix, G3 is a third preset high-pressure maintenance matrix, and G4 is a fourth preset high-pressure maintenance matrix; and (4) presetting an ith high-pressure curing matrix Gi, Gi (Tbi, tdi, Pi), wherein Tbi is the ith preset high-pressure curing temperature, tdi is the ith preset high-pressure curing time length, and Pi is the ith preset high-pressure curing air pressure.
6. The tubular pile preparation process of claim 5, wherein when the tubular pile raw material ratio is selected, a preset ratio matrix is selected from a preset ratio matrix group R0 through the central control module:
when an R1 matrix is selected, the central control module adjusts the preset mass of cement to mn1 according to parameters in the R1 matrix, adjusts the preset mass of river sand to mh1, adjusts the preset mass of broken stone to ms1, adjusts the preset mass of an additive to mw1, and adjusts the preset mass of stirring water to mu 1;
when an R2 matrix is selected, the central control module adjusts the preset mass of cement to mn2 according to parameters in the R2 matrix, adjusts the preset mass of river sand to mh2, adjusts the preset mass of broken stone to ms2, adjusts the preset mass of an additive to mw2, and adjusts the preset mass of stirring water to mu 2;
when an R3 matrix is selected, the central control module adjusts the preset mass of cement to mn3 according to parameters in the R3 matrix, adjusts the preset mass of river sand to mh3, adjusts the preset mass of broken stone to ms3, adjusts the preset mass of an additive to mw3, and adjusts the preset mass of stirring water to mu 3;
when an R4 matrix is selected, the central control module adjusts the preset mass of cement to mn4 according to parameters in the R4 matrix, adjusts the preset mass of river sand to mh4, adjusts the preset mass of broken stone to ms4, adjusts the preset mass of an additive to mw4, and adjusts the preset mass of stirring water to mu 4;
and when the central control module finishes determining the mixture ratio of the raw materials, the central control module starts to operate the process to prepare the tubular pile.
7. The tubular pile preparation process of claim 6, wherein when the central control module selects the first preset proportioning matrix R1, the central control module selects a J1 matrix from a J0 matrix group, selects a F1 matrix from a F0 matrix, selects a S1 matrix from a S0 matrix group, selects a C1 matrix from a C0 matrix group, selects a G1 from a G0 matrix group in a summary manner, establishes a first preset preparation scheme matrix group a1(J0, F0, S0, C0, G0), adjusts the preset rotation speed of the agitator to wa1 according to parameters in the a1 matrix group, adjusts the preset time for primary agitation of the agitator to tax1, and adjusts the preset time for secondary agitation of the agitator to tayi; setting a preset tension force to be F1; setting the preset dehydration rotating speed as wb1 and the preset dehydration time as tb 1; setting a preset normal pressure curing temperature Ta1, and i, setting a preset normal pressure curing time tc 1; setting the preset high-pressure maintenance temperature to Tb1, setting the preset high-pressure maintenance time to td1, and adjusting the preset high-pressure maintenance air pressure to P1;
when the central control module selects a first preset proportioning matrix R2, the central control module selects a J2 matrix from a J0 matrix group, selects an F2 matrix from an F0 matrix, selects an S2 matrix from an S0 matrix group, selects a C2 matrix from a C0 matrix group, collects a G2 matrix from a G0 matrix group, establishes a first preset preparation scheme matrix group A2(J0, F0, S0, C0 and G0), and adjusts the preset rotating speed of the stirrer to wa2, the preset time of primary stirring of the stirrer to tax2 and the preset time of secondary stirring of the stirrer to tayi according to parameters in the A2 matrix group; setting a preset tension force to be F2; setting the preset dehydration rotating speed as wb2 and the preset dehydration time as tb 2; setting a preset normal pressure curing temperature Ta2, and i, setting a preset normal pressure curing time tc 2; setting the preset high-pressure maintenance temperature to Tb2, setting the preset high-pressure maintenance time to td2, and adjusting the preset high-pressure maintenance air pressure to P2;
when the central control module selects a first preset proportioning matrix R3, the central control module selects a J3 matrix from a J0 matrix group, selects an F3 matrix from an F0 matrix, selects an S3 matrix from an S0 matrix group, selects a C3 matrix from a C0 matrix group, collects a G3 matrix from a G0 matrix group, establishes a first preset preparation scheme matrix group A3(J0, F0, S0, C0 and G0), and adjusts the preset rotating speed of the stirrer to wa3, the preset time of primary stirring of the stirrer to tax3 and the preset time of secondary stirring of the stirrer to tayi according to parameters in the A3 matrix group; setting a preset tension force to be F3; setting the preset dehydration rotating speed as wb3 and the preset dehydration time as tb 3; setting a preset normal pressure curing temperature Ta3, and i, setting a preset normal pressure curing time tc 3; setting the preset high-pressure maintenance temperature to Tb3, setting the preset high-pressure maintenance time to td3, and adjusting the preset high-pressure maintenance air pressure to P3;
when the central control module selects a first preset proportioning matrix R4, the central control module selects a J4 matrix from a J0 matrix group, selects an F4 matrix from an F0 matrix, selects an S4 matrix from an S0 matrix group, selects a C4 matrix from a C0 matrix group, collects a G4 matrix from a G0 matrix group, establishes a first preset preparation scheme matrix group A4(J0, F0, S0, C0 and G0), and adjusts the preset rotating speed of the stirrer to wa4, the preset time of primary stirring of the stirrer to tax4 and the preset time of secondary stirring of the stirrer to tayi according to parameters in the A4 matrix group; setting a preset tension force to be F4; setting the preset dehydration rotating speed as wb4 and the preset dehydration time as tb 4; setting a preset normal pressure curing temperature Ta4, and i, setting a preset normal pressure curing time tc 4; the preset high-pressure curing temperature is set to Tb4, the preset high-pressure curing time is set to td4, and the preset high-pressure curing air pressure is adjusted to P4.
8. The tubular pile manufacturing process according to claim 4, wherein in the step 2, when the concrete material is conveyed to the inner cavity of the tubular mould for distribution, a vibrating bar and a vibrating plate are used to enable the concrete material to rapidly pass through the reinforcement cage to complete the distribution process.
9. The tubular pile preparation process of claim 4, wherein the admixture is a polycarboxylic acid water reducing agent.
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| US20100084781A1 (en) * | 2008-10-03 | 2010-04-08 | Chou Mei-In M | Concrete Manufacturing Processes and Methods |
| CN102267180A (en) * | 2011-06-10 | 2011-12-07 | 江苏建华管桩有限公司 | Concrete pile production method free from steaming and pressing and pouring remaining slurry |
| CN102797253A (en) * | 2012-08-24 | 2012-11-28 | 江苏建华管桩有限公司 | Precast concrete pile and manufacturing method thereof |
| CN202805405U (en) * | 2012-06-21 | 2013-03-20 | 上海中技桩业股份有限公司 | Automatic production line of centrifugal pile |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100084781A1 (en) * | 2008-10-03 | 2010-04-08 | Chou Mei-In M | Concrete Manufacturing Processes and Methods |
| CN102267180A (en) * | 2011-06-10 | 2011-12-07 | 江苏建华管桩有限公司 | Concrete pile production method free from steaming and pressing and pouring remaining slurry |
| CN202805405U (en) * | 2012-06-21 | 2013-03-20 | 上海中技桩业股份有限公司 | Automatic production line of centrifugal pile |
| CN102797253A (en) * | 2012-08-24 | 2012-11-28 | 江苏建华管桩有限公司 | Precast concrete pile and manufacturing method thereof |
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