CN117626828A - Construction method of light core mold small-section hollow thin-wall high pier - Google Patents
Construction method of light core mold small-section hollow thin-wall high pier Download PDFInfo
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- CN117626828A CN117626828A CN202311795894.3A CN202311795894A CN117626828A CN 117626828 A CN117626828 A CN 117626828A CN 202311795894 A CN202311795894 A CN 202311795894A CN 117626828 A CN117626828 A CN 117626828A
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- 238000010276 construction Methods 0.000 title claims abstract description 66
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- 238000007788 roughening Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 4
- 239000003063 flame retardant Substances 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 230000003020 moisturizing effect Effects 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 239000002893 slag Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 230000007306 turnover Effects 0.000 claims description 2
- 238000009415 formwork Methods 0.000 abstract description 12
- 239000002023 wood Substances 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000013102 re-test Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The invention relates to the technical field of hollow thin-wall high pier construction, and discloses a construction method of a hollow thin-wall high pier with a light mandrel and a small cross section. Compared with the traditional detachable inner formwork such as steel, wood and the like, the light core mold construction method for the small-section hollow thin-wall high pier of the light core mold has the advantages that the defects of time and labor waste, high cost, heavy weight, poor working environment of workers, delay of construction period and the like of the traditional inner mold under the condition of limited space operation are overcome by the application of the light core mold.
Description
Technical Field
The invention relates to the technical field of hollow thin-wall high pier construction, in particular to a light mandrel small-section hollow thin-wall high pier construction method.
Background
The appearance of the thin-wall hollow high pier is similar to that of a gravity pier. The high pier has the characteristics of good structural rigidity and strength, light dead weight, large section modulus and small section area, and is mainly used in high-bridge construction.
At present, in the construction of a thin-wall hollow high pier, if a traditional process, namely steel (wood) template field assembly is adopted for hollow cavities, the maximum size of the cross section of each hollow cavity is only 1.4 multiplied by 1.4m, the cross section of a furling opening of a cavity top is only 0.8 multiplied by 0.8m, the installation and dismantling operation space of an internal mold is small, an operation platform and a personnel up-down channel are required to be arranged in the cavity, the wall thickness of the thin-wall pier is only 0.4m, and under the limited space operation condition, the construction difficulty of the hollow thin-wall pier is high, the working efficiency is low, the progress is slow, and the safety is low, so that a light core mold small cross section hollow thin-wall high pier construction method is required to be designed to solve the problems.
Disclosure of Invention
Technical scheme (one)
The invention provides the following technical scheme: a construction method of a light mandrel small-section hollow thin-wall high pier comprises the following steps:
s1, measuring and lofting
And after the construction of the bearing platform is finished, retesting the center line and elevation of the bearing platform, simultaneously discharging a control point of the designed dimension outline of the solid section of the bottom of the hollow pier and the center line of the pier, and then using an ink-ejection method and ejecting the straight line section of the pier body as the measurement basis for the first construction of the pier mould according to the control point and the dimensions of each part of the pier body.
S2, construction of reinforcing steel bars
Retest is carried out to pier stud top surface elevation, in time handle the elevation and do not meet the requirement, carry out the roughening treatment to the cushion cap afterwards, and clean up concrete residue, adopt corresponding joint mode to correspond the installation respectively to pier stud owner muscle, stirrup and drawknot muscle according to type and construction process, wherein diameter phi 22 and above reinforcing bar adopts straight thread sleeve connection, ensure that sleeve connection back exposes and does not exceed 2 silk, and sleeve both ends evenly distributed adopts sleeve special spanner when connecting, ensure that the reinforcing bar tip is level when sleeve connection, diameter phi 22 below reinforcing bar adopts the welding.
S3, construction platform and template installation
S301, outer template installation
Firstly, measuring lofting inner side lines, driving steel nails to limit each side of the lofting inner side lines, polishing and leveling a bearing table surface for 3cm wide along a template mounting line, then mounting a first section of template, fixing the templates on the bearing table surface by using expansion bolts at flange holes of four corners of the template, mounting a second section of template and a third section of template section by section, firstly tightening flange bolts between each section of template, and adjusting and controlling verticality while screwing the bolts.
S302, mandrel installation
And according to the pier construction height and the outer template height, adopting steel plate limiting and fixing measures in four directions and adopting anti-floating steel beam jacking measures arranged at the top of the anti-floating steel beam jacking measures to install the core mould.
S303, mounting pier outer working platform
The method comprises the steps of utilizing reserved bolt holes on a template, installing a hanging basket type triangular bracket on a vertical stiffening rib, then fully paving a steel springboard on a platform, and simultaneously arranging a foot blocking plate, a safety protection mesh net and a warning sign label.
S4, pouring concrete
Before pouring, checking the bracket, the template, the reinforcing steel bars and the embedded parts, cleaning sundries, accumulated water in the template and dirt on the reinforcing steel bars, tightly filling gaps of the template, comprehensively brushing the same type of release agent in the template, checking the uniformity and slump of concrete, intensively stirring the concrete by adopting a concrete station, transporting the concrete tank truck to a construction site, warehousing by adopting a tower crane or a overhead pump batching hopper, and vibrating by adopting an inserted vibrator.
S5, curing the concrete
And (3) after the concrete pouring is finished, the concrete is wrapped by a plastic film for curing, the wrapping is tightly airtight and airtight, the curing is performed by utilizing the water evaporated from the concrete, the water is sprayed in time for curing after the template is removed, and the non-woven fabric is used for covering and moisturizing for not less than 7 days.
S6, turning over the die construction
After the construction of the pier body with the first section is completed, the outer mold is sequentially removed, the outer mold is lifted, the outer mold is erected, then the inner mold is removed, the inner mold is lifted and reinforced, and then the steps S4 and S5 are repeated until the construction of the pier body is completed.
Preferably, in the step S1, the hollow section is measured, 12 points are adopted for contour control according to the pier body structure form, 12 points are all used for the four corners of the outer edge and the eight angles of the inner edge of the pier body, if the actual size is not matched with the design size, the pier mold is corrected until the actual size of the installed pier mold is matched with the design size, and the verticality of the section is measured along the outer side of the template by using a vertical ball.
Preferably, in the step S2, the roughening time is started after twenty-four hours of final setting, and the surface of the contact surface of the pier stud and the bearing platform is roughened completely, the area is not less than 90%, and the roughening depth is controlled to be 5-10mm, until the aggregate is exposed 2/3.
Preferably, in step S301, a temporary wind-shielding wall is provided on the windward side of the pier body, and is formed in a folded line shape, and the temporary wind-shielding wall is constructed first and then the template is installed.
Preferably, in the step S302, the core mold is made of polystyrene plastic, in order to ensure that the core mold material is damaged by sparks during the welding process of the reinforcing steel bars, flame retardant, resin layer and other flame-proof measures are added into the core mold material, care should be taken to take the reinforcing steel bar framework slightly during the construction of the reinforcing steel bars, so as to prevent the reinforcing steel bar framework from colliding with the core mold material, the reinforcing steel bar elbow points to the side away from the core mold, and a baffle plate is arranged between the reinforcing steel bar framework and the core mold material during the welding process of the reinforcing steel bars.
Preferably, in the step S4, before the concrete is poured, the plane size of the template, the supporting system and the pier body embedded bars are inspected and accepted, and then the concrete is poured after the template is qualified, the temperature of the concrete in summer is not more than 30 ℃, the concrete is poured when the outdoor air temperature is selected to be low, the temperature of the concrete in winter is not less than 10 ℃, the temperature of the concrete in the template is not less than 5 ℃, and the concrete is poured when the temperature in daytime is selected to be high.
Preferably, in step S6, the construction operation platform is installed immediately after the installation of the outer formwork of each layer of pier stud, the outer operation platform is provided with the angle steel support platform around the pier body formwork, when the formwork is turned over, the formwork is outwards moved out and then upwards turned up by the crane after being removed, and is manually matched, the lower-layer formwork is turned over each time to keep the upper-layer formwork, the lower-layer formwork is disassembled and moved out, the formwork is lifted by the tower crane, after the assembly is firm, the upper-layer formwork is turned over again to be assembled and connected with the lower-layer formwork to be fixed, and the process is circulated until the pier body is capped.
(II) advantageous effects
Compared with the prior art, the invention provides a construction method of a light core mould small-section hollow thin-wall high pier, which has the following beneficial effects:
compared with the traditional steel, wood and other detachable inner templates, the light core mold construction method solves the defects of time and labor waste, high cost, heavy weight, poor working environment of workers, delay of construction period and the like of the traditional inner mold under the condition of limited space operation, improves the construction quality of the thin-wall hollow pier and reduces the construction cost.
Drawings
FIG. 1 is a schematic flow chart of the present invention;
FIG. 2 is a schematic diagram of a pier body control point in accordance with the present invention;
FIG. 3 is a schematic view of a hollow thin-walled pier body rebar of the present invention;
FIG. 4 is a diagram showing the mounting support of the pier body first segment formwork of the present invention;
FIG. 5 is a schematic view of wind-proof reinforcement for pier body construction according to the present invention;
fig. 6 is a front view of the core mold installation and fixation means of the present invention;
figure 7 is a side view of the core mounting fixture of the present invention;
FIG. 8 is a top view of the core mounting fixture of the present invention;
FIG. 9 is a schematic view of an off-pier working platform of the present invention;
FIG. 10 is a diagram showing the concrete placement sequence of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-10, the present invention provides a technical solution: a construction method of a light mandrel small-section hollow thin-wall high pier comprises the following steps:
s1, measuring and lofting
And after the construction of the bearing platform is finished, retesting the center line and elevation of the bearing platform, simultaneously discharging a control point of the designed dimension outline of the solid section of the bottom of the hollow pier and the center line of the pier, and then using an ink-ejection method and ejecting the straight line section of the pier body as the measurement basis for the first construction of the pier mould according to the control point and the dimensions of each part of the pier body.
And measuring the hollow section, wherein 12-point contour control is adopted according to the pier body structural form, as shown in figure 2, the total of 12 points in the directions of four corners at the outer edge and eight angles at the inner edge of the pier body, if the actual size is not matched with the design size, correcting the pier mould until the actual size of the installed pier mould is matched with the design size, and measuring the verticality of the section along the outer side of the template by using a vertical ball.
S2, construction of reinforcing steel bars
As shown in fig. 3, retest is carried out on the top surface elevation of the pier stud, timely treatment is carried out on the elevation which does not meet the requirement, then roughening treatment is carried out on a bearing platform, concrete slag is cleaned, the pier stud main bars, the stirrups and the tie bars are correspondingly installed in a corresponding joint mode according to the type and the construction process, wherein the steel bars with the diameter phi 22 and above are connected through straight thread sleeves, the exposed steel bars with the diameter phi 22 are ensured not to exceed 2 wires after the sleeve connection, the two ends of the sleeves are uniformly distributed, special sleeve wrenches are adopted during the connection, the end parts of the steel bars are ensured to be smooth during the sleeve connection, and the steel bars with the diameter phi 22 are welded.
The roughening time is started after twenty-four hours of final setting, the surface of the contact surface of the pier stud and the bearing platform is roughened completely, the area is not less than 90%, and the roughening depth is controlled to be 5-10mm until the aggregate is exposed 2/3.
S3, construction platform and template installation
S301, outer template installation
Referring to fig. 4 and 5, firstly, measuring the lofting medial line, driving steel nails to limit each side, polishing and leveling the bearing surface for 3cm wide along a template mounting line, then mounting a first section of template, fixing the template on the bearing surface by using expansion bolts at flange holes of four corners of the template, then mounting a second section and a third section of templates section by section, firstly tightening flange bolts between each section of templates, and adjusting and controlling verticality while screwing the bolts.
A temporary wind-shielding wall is arranged on the windward side of the pier body and is formed into a folded line shape, and the temporary wind-shielding wall is constructed first and then the template is installed.
S302, mandrel installation
Referring to fig. 6-8, according to the pier construction height and the outer form height, four-direction steel plate limiting and fixing measures are adopted, and anti-floating steel beam jacking measures are arranged at the top of the anti-floating steel beam jacking measures to install the core mould.
The core mould is made of polystyrene plastic, flame retardant, resin layer and other flame-proof measures are added into the core mould material to ensure the damage of sparks to the core mould material in the welding process of the reinforcing steel bars, the reinforcing steel bar framework is required to be taken slightly during the construction of the reinforcing steel bars, the reinforcing steel bar elbow is prevented from colliding with the core mould material, and a baffle plate is required to be arranged between the reinforcing steel bar framework and the core mould material during the welding of the reinforcing steel bars.
S303, mounting pier outer working platform
Referring to fig. 9, a basket type triangular bracket is installed on a vertical stiffening rib by utilizing a reserved bolt hole on a template, then a steel springboard is fully paved on a platform, and a foot blocking plate, a safety protection mesh net and a warning sign label are arranged at the same time.
S4, pouring concrete
Before pouring, the bracket, the template, the reinforcing steel bars and the embedded parts are inspected, sundries, accumulated water in the template and dirt on the reinforcing steel bars are cleaned, gaps of the template are tightly filled, the template is comprehensively coated with the same type of release agent, uniformity and slump of concrete are inspected, the concrete is intensively stirred by a commercial concrete station, a concrete tank truck is transported to a construction site, a tower crane or a overhead pump proportioning hopper is adopted for warehousing, and an inserted vibrator is adopted for vibrating.
Before concrete pouring, the size of the plane of the template, the supporting system and the embedded bars of the pier body are checked and accepted, and then concrete pouring is carried out after the template is qualified, wherein the temperature of the concrete in the template is not higher than 30 ℃ in summer, the concrete is poured when the outdoor air temperature is selected to be low, the temperature of the concrete in the template is not lower than 10 ℃ in winter, the temperature of the concrete in the template is not lower than 5 ℃, and the concrete is poured when the temperature in the daytime is selected to be high.
S5, curing the concrete
And (3) after the concrete pouring is finished, the concrete is wrapped by a plastic film for curing, the wrapping is tightly airtight and airtight, the curing is performed by utilizing the water evaporated from the concrete, the water is sprayed in time for curing after the template is removed, and the non-woven fabric is used for covering and moisturizing for not less than 7 days.
S6, turning over the die construction
After the construction of the pier body with the first section is completed, the outer mold is sequentially removed, the outer mold is lifted, the outer mold is erected, then the inner mold is removed, the inner mold is lifted and reinforced, and then the steps S4 and S5 are repeated until the construction of the pier body is completed.
And after the outer side templates of each layer of pier columns are installed, the construction operation platform is installed immediately, namely, the outer operation platform is provided with the angle steel support platforms around the pier body templates, during the turnover construction, the templates are outwards moved out after the mold is disassembled and then upwards turned up by a crane, the lower templates are manually matched, the upper templates are reserved after each turn-up, the lower templates are disassembled and moved out, the templates are lifted by a tower crane, after firm assembly, the upper templates are turned up again to be assembled and are fixedly connected with the lower templates, and the circulation is performed until the pier body is capped.
Compared with the traditional steel, wood and other detachable inner templates, the light core mold construction method solves the defects of time and labor waste, high cost, heavy weight, poor working environment of workers, delay of construction period and the like of the traditional inner mold under the condition of limited space operation, improves the construction quality of the thin-wall hollow pier and reduces the construction cost.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The construction method of the hollow thin-wall high pier with the small section of the light mandrel is characterized by comprising the following steps of:
s1, measuring and lofting
Re-measuring the center line and elevation of the bearing platform after the construction of the bearing platform is finished, simultaneously discharging a control point of the designed dimension outline of the solid section of the bottom of the hollow pier and the center line of the pier, and then using an ink-ejecting method and ejecting the straight line section of the pier body as the measuring basis for the first construction of the pier mould according to the control point and the dimensions of each part of the pier body;
s2, construction of reinforcing steel bars
Retesting the top surface elevation of the pier column, timely processing the elevation which does not meet the requirement, then roughening a bearing platform, cleaning up concrete slag, and correspondingly installing the main reinforcement, the stirrups and the tie bars of the pier column in a corresponding joint mode according to the type and the construction process, wherein the steel bars with the diameter phi 22 and above are connected by adopting a straight thread sleeve, the steel bars are ensured to be exposed to be not more than 2 wires after being connected by adopting the sleeve, the two ends of the sleeve are uniformly distributed, a special sleeve spanner is adopted during connection, the end parts of the steel bars are ensured to be flat during sleeve connection, and the steel bars with the diameter phi 22 below are welded;
s3, construction platform and template installation
S301, outer template installation
Firstly, measuring a lofting inner line, driving steel nails into each side for limiting, polishing and leveling a bearing table surface for 3cm wide along a template mounting line, then mounting a first section of template, fixing the template on the bearing table surface by using expansion bolts at flange holes of four corners of the template, mounting a second section and a third section of templates section by section, firstly tightening flange bolts between each section of templates, and adjusting and controlling verticality while screwing the bolts;
s302, mandrel installation
According to the construction height of the pier column and the height of the outer template, adopting steel plate limiting and fixing measures in four directions and adopting anti-floating and anti-floating steel girder jacking measures at the top to install a core mould;
s303, mounting pier outer working platform
The method comprises the steps that reserved bolt holes are utilized on a template, a hanging basket type triangular bracket is installed on a vertical stiffening rib, then a steel springboard is fully paved on a platform, and a foot blocking plate, a safety protection dense mesh net and a warning sign label are arranged at the same time;
s4, pouring concrete
Before pouring, checking a bracket, a template, reinforcing steel bars and embedded parts, cleaning sundries, accumulated water in the template and dirt on the reinforcing steel bars, tightly filling gaps of the template, comprehensively brushing the same type of release agent in the template, checking the uniformity and slump of concrete, intensively stirring the concrete by adopting a concrete station, transporting a concrete tank truck to a construction site, warehousing by adopting a tower crane or a overhead pump batching hopper, and vibrating by adopting an inserted vibrator;
s5, curing the concrete
After the concrete pouring is completed, the concrete is wrapped by a plastic film for curing, the wrapping is tightly airtight and airtight, curing is performed by utilizing moisture evaporated from the concrete, after the template is removed, water is sprayed in time for curing, and non-woven fabric is used for covering and moisturizing for not less than 7 days;
s6, turning over the die construction
After the construction of the pier body with the first section is completed, the outer mold is sequentially removed, the outer mold is lifted, the outer mold is erected, then the inner mold is removed, the inner mold is lifted and reinforced, and then the steps S4 and S5 are repeated until the construction of the pier body is completed.
2. The construction method of the lightweight mandrel small-section hollow thin-wall high pier according to claim 1, wherein in the step S1, the hollow section is measured, 12 points are adopted for contour control according to the pier body structure form, 12 points are adopted for the four corners at the outer side and the eight angles at the inner side of the pier body, if the actual size is not matched with the design size, the pier mold is corrected until the actual size of the installation pier mold is matched with the design size, and the verticality of the section is measured along the outer side of the template by using a vertical ball.
3. The method for constructing the hollow thin-wall high pier with the small cross section of the light mandrel according to claim 1, wherein in the step S2, the roughening time is started after twenty-four hours of final setting, the surface of the contact surface of the pier stud and the bearing platform is roughened completely, the area is not less than 90%, and the roughening depth is controlled to be between 5 and 10mm, so that the aggregate is exposed by 2/3.
4. The method for constructing a lightweight core mold with a small cross section and a hollow thin wall and a high pier according to claim 1, wherein in the step S301, a temporary wind-shielding wall is arranged on the windward side of the pier body to form a folded line shape, and the temporary wind-shielding wall is constructed first and then the template is installed.
5. The method for constructing the lightweight core mold with the small cross section and the hollow thin wall and the high pier according to claim 1, wherein in the step S302, the core mold is made of polystyrene plastic, flame-retardant measures such as flame retardant and resin layers are added into the core mold material in order to ensure the damage of sparks to the core mold material in the welding process of the reinforcing steel bars, the reinforcing steel bar framework is required to be taken slightly and put slightly during the construction of the reinforcing steel bars, the reinforcing steel bar elbow points to the side away from the core mold, and a baffle is required to be arranged between the reinforcing steel bar framework and the core mold material during the welding of the reinforcing steel bars.
6. The construction method of the hollow thin-wall high pier with the small cross section of the light mandrel according to claim 1, wherein in the step S4, before the concrete is poured, the surface size of the template, a supporting system and embedded bars of the pier body are checked and accepted, the concrete is poured after the template is qualified, the concrete is poured when the temperature of the concrete in the template is not more than 30 ℃ in summer, the concrete is poured when the outdoor air temperature is selected to be low, the temperature of the concrete in the template is not lower than 10 ℃ in winter, and the concrete is poured when the temperature of the concrete in the template is selected to be higher in daytime.
7. The construction method of the hollow thin-wall high pier with the small cross section of the light mandrel as claimed in claim 1, wherein in the step S6, a construction operation platform is installed immediately after the outer side template of each pier column is installed, the outer operation platform is provided with a self-supporting angle steel bracket platform around the pier body template, during the turnover construction, the template is outwards moved out and then upwards turned up by a crane after being removed, and is matched with the lower side template by manpower, the lower side template is kept to be turned up each time, the lower side template is detached and removed, the template is lifted by a tower crane, after the assembly is firm, the upper side template is turned up and is fixedly connected with the lower side template, and the circulation is performed until the pier body is capped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311795894.3A CN117626828A (en) | 2023-12-25 | 2023-12-25 | Construction method of light core mold small-section hollow thin-wall high pier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311795894.3A CN117626828A (en) | 2023-12-25 | 2023-12-25 | Construction method of light core mold small-section hollow thin-wall high pier |
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| Publication Number | Publication Date |
|---|---|
| CN117626828A true CN117626828A (en) | 2024-03-01 |
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|---|---|---|---|
| CN202311795894.3A Pending CN117626828A (en) | 2023-12-25 | 2023-12-25 | Construction method of light core mold small-section hollow thin-wall high pier |
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| Country | Link |
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| CN (1) | CN117626828A (en) |
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- 2023-12-25 CN CN202311795894.3A patent/CN117626828A/en active Pending
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