CN113216261A - Concentric and coaxial butt joint construction method for steel pipe column and tool column by foundation pit reverse construction method - Google Patents
Concentric and coaxial butt joint construction method for steel pipe column and tool column by foundation pit reverse construction method Download PDFInfo
- Publication number
- CN113216261A CN113216261A CN202110269835.7A CN202110269835A CN113216261A CN 113216261 A CN113216261 A CN 113216261A CN 202110269835 A CN202110269835 A CN 202110269835A CN 113216261 A CN113216261 A CN 113216261A
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- pipe column
- column
- steel
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 322
- 239000010959 steel Substances 0.000 title claims abstract description 322
- 210000001503 joint Anatomy 0.000 title claims abstract description 76
- 238000010276 construction Methods 0.000 title claims abstract description 51
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 238000012795 verification Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 10
- 238000007689 inspection Methods 0.000 claims description 10
- 238000004364 calculation method Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000003566 sealing material Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 22
- 238000003466 welding Methods 0.000 description 11
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 238000005266 casting Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000010570 post-docking Methods 0.000 description 2
- 238000013461 design Methods 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
- 238000010422 painting Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
- E02D29/05—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
- E02D29/055—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench further excavation of the cross-section proceeding underneath an already installed part of the structure, e.g. the roof of a tunnel
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to the technical field of foundation pit reverse construction method structure column and tool column construction, and discloses a concentric coaxial butt joint construction method for a steel pipe column and a tool column by a foundation pit reverse construction method, which comprises the following steps: s11), manufacturing a pedestal by erecting a mold according to the position defined by the butt joint site; a support structure is arranged above the pedestal, the support structure is provided with an arc-shaped part for supporting the steel pipe column or the tool column, channel steel is arranged on two sides of the arc-shaped part, and the number and the distance of the pedestals are determined according to the lengths of the steel pipe column and the tool column; s21), hoisting the steel pipe column and the tool column to a supporting structure to enable the steel pipe column and the tool column to be in a concentric and coaxial state, aligning one end of the steel pipe column provided with the flange with one end of the tool column provided with the bolt hole, and completing primary connection through bolts. In the foundation pit reverse construction method, the butt joint construction method of the pedestal is used, so that the axis alignment precision and the butt joint construction efficiency when the steel pipe column is in butt joint with the tool column are effectively improved.
Description
Technical Field
The invention relates to the technical field of construction of a structural column and a tool column by a foundation pit reverse construction method, in particular to a concentric and coaxial butt joint construction method of a steel pipe column and a tool column by a foundation pit reverse construction method.
Background
The foundation pit reverse construction method is a superconventional construction method and has the principle that a high-rise building underground structure is constructed layer by layer from top to bottom, namely, a continuous wall or close-packed piles are constructed along the periphery of a basement of a building and used as an enclosure structure of the outer wall of the basement or a foundation pit, and meanwhile, supporting piles are constructed in the middle of floors at relevant positions in the building, so that a reverse vertical bearing system is formed; and then, a layer of earthwork is dug from top to bottom, a layer of basement beam plate structure is poured together with the soil mold, and the earthwork can be used as an inner horizontal support of the enclosure structure after certain strength is achieved so as to meet the safety requirement of continuous downward construction. Meanwhile, the completion of the top surface structure of the basement creates conditions for the construction of the upper structure, so that the construction of the ground structure can be carried out layer by layer upwards at the same time. And constructing the ground up and down at the same time until the project is finished.
When the underground structure is constructed by the reverse method, the foundation pile is firstly constructed, the foundation pile is generally in the form of inserting the structural column by a bottom pouring pile, and the steel pipe structural pile is one of the common forms. During construction of the steel pipe column, the precision generally reaches 1/500-1/1000, and even higher. In order to meet the high precision requirement, a full-casing full-slewing drilling machine is required to be used for positioning. Because the full rotary drilling machine of full sleeve pipe is high about 3.2m, steel tubular construction pile bolck elevation generally is in the below ground position, for satisfying rig drill way location demand, generally adopt the mode of tool post connection steel-pipe column to come auxiliary positioning during the construction, use the pedestal to support adjustment butt joint position simultaneously.
And traditional pedestal generally forms with channel-section steel and I-steel welding at the job site, and the support of pedestal adopts the mode of horizontal support, need use the crane cooperation during butt joint construction, adjusts the liner repeatedly and just can accomplish the butt joint, leads to the steel-pipe column to be difficult to aim at with the axle center when the instrument post is docked, the lower problem of butt joint efficiency of construction.
Disclosure of Invention
The invention aims to provide a concentric and coaxial butt joint construction method for a steel pipe column and a tool column by a foundation pit reverse construction method, and aims to solve the problems that in the prior art, when the steel pipe column is in butt joint with the tool column, the axis is difficult to align, and the butt joint construction efficiency is low.
The invention discloses a concentric coaxial butt joint construction method of a steel pipe column and a tool column by a foundation pit reverse construction method, which comprises the following steps:
s11), manufacturing a pedestal by erecting a mold according to the position defined by the butt joint site; a support structure is arranged above the pedestal, and the support structure is provided with an arc part for supporting a steel pipe column or a tool column; the radian of the arc-shaped part is designed according to the radius size of the steel pipe column or the tool column, and channel steel is arranged on two sides of the arc-shaped part; determining the number and the distance of the arranged pedestals according to the lengths of the steel pipe column and the tool column, wherein the distance between every two adjacent pedestals is 4-6 m;
s21), butting the steel pipe column and the tool column, and hoisting the steel pipe column and the tool column to a support structure to enable the steel pipe column and the tool column to be concentric and coaxial; the terminal surface of steel-pipe column has the flange, and the terminal surface of instrument post has the bolt hole, and the steel-pipe column sets up flange one end and instrument post and sets up the bolt hole one end and align the back each other, accomplishes initial connection through the bolt, and the tightness of bolt this moment is 60% -80%.
And further, before the step S11), carrying out sectional inspection before delivery on the processed steel pipe column and tool column, and transporting the steel pipe column and tool column to a butt joint site after the steel pipe column and tool column are qualified.
Further, in the step S21), performing fine adjustment on the preliminarily connected steel pipe column and tool column, welding wedge-shaped steel blocks on two sides of the steel pipe column, jacking the wedge-shaped steel blocks by using a jack, adjusting and aligning the bolt hole positions of the joint between the steel pipe column and the tool column, adjusting and aligning the tightness of the reinforcing bolt after alignment, and performing primary sealing at the joint of the bolt by using a sealing material.
Further, in the step S21), checking the vertical direction butting precision and the horizontal direction butting vertical precision of the steel pipe column after the micro adjustment;
for the verification of the vertical butt joint accuracy of the steel pipe column, 1-n measuring points are marked on the outer side wall of the steel pipe column along the length direction of the steel pipe column, and the height value of the steel pipe column at each measuring point is measured and marked as H1, H2, … and Hn; then, calculating an error value by adopting a calculation formula, confirming the range of the error value, if the range of the error value exceeds a set value, laterally returning to the previous step, and if not, entering the next step;
the method comprises the following steps of (1) checking the horizontal direction butt joint precision of the steel pipe column, arranging two laser levels on two sides of one end, far away from a tool column, of the steel pipe column, and adjusting the positions of the two laser levels to enable a laser line to be parallel to the axis of the steel pipe column, wherein the height of the laser line is consistent with the height of the axis of the steel pipe column; selecting n measuring points at two ends of the steel pipe column and near the butt joint position of the steel pipe column and the steel pipe column along the length direction of the steel pipe column; measuring the distances from the pipe walls on the two sides of the steel pipe column to the laser lines of the two laser levels respectively at a measuring point by adopting a ruler with horizontal bubbles, and recording L1, L2, …, Ln and R1, R2 … and Rn respectively; and calculating error values by using a calculation formula according to the data L1, L2, … and Ln, confirming the range of the error values, returning to the previous step if the range of the error values exceeds a set value, and entering the next step if the range of the error values does not exceed the set value.
Further, before the step of S11), performing site hardening treatment on the butt-joint site, firstly cleaning the ground of the butt-joint site, and flatly compacting the ground of the butt-joint site; then, a C15 concrete terrace with the thickness of 20cm is poured, the flatness error within the range of 10m of the foundation surface is less than or equal to 3mm, and the flatness error outside the range of 10m of the foundation surface is less than or equal to 5 mm; and finally, drying the ground of the butt joint site, and marking the installation position of the pedestal.
Further, the field hardening treatment needs to be completed before the pedestal is manufactured, and the field hardening treatment and the segmented checking of the steel pipe column and the tool column can be performed synchronously.
Further, after the butt joint precision of the steel pipe column and the tool column is qualified, welding and fixing bolts at the joint; and after the bolt is welded, performing secondary sealing on a gap at the joint between the steel pipe column and the tool column by adopting a sealing material.
Furthermore, the supporting structure is provided with a lifting plate, the lifting plate is provided with the arc-shaped part, an elastic layer is arranged on the supporting surface of the arc-shaped part, the surface of the elastic layer is provided with a groove, and the steel pipe column and the tool column are hung on the arc-shaped part to be in butt joint; the steel pipe column is characterized in that the channel steels are arranged on the side edge of the lifting plate, the lifting plate is movably or fixedly connected with the channel steels, and the steel pipe column and the tool column are butted with each other with adjustable precision through the lifting movement of the lifting plate.
Furthermore, the lifting plate is vertically or parallelly connected with the channel steel; the channel-section steel includes first channel-section steel and second channel-section steel, the dorsal part of first channel-section steel with lifter plate swing joint or fixed connection, the notch side of first channel-section steel with second channel-section steel swing joint or fixed connection.
Furthermore, when the lifting plate is movably connected with the first channel steel, the first channel steel is fixedly connected with the second channel steel, a sliding groove is formed in the back side of the first channel steel, a sliding rail is arranged in the sliding groove, pulleys are arranged on two side edges, connected with the first channel steel, of the lifting plate, and the pulleys are connected with the sliding rail in a matching mode; wedge-shaped blocks are arranged on the front side and the rear side of the lifting plate, a driving element is arranged on the pedestal and corresponds to the wedge-shaped blocks, the driving element is abutted to drive the wedge-shaped blocks, and the lifting plate slides along the direction of the slide rail through pulleys on two side edges;
the lifter plate with during first channel-section steel fixed connection, first channel-section steel with second channel-section steel swing joint, the dorsal part of first channel-section steel is equipped with the profile rack, be equipped with the gear in the notch of second channel-section steel, the gear pass the second channel-section steel with the profile rack interlock is connected, through the drive element drive the gear, the gear drives the gear strip makes the vertical direction lift activity of second channel-section steel is followed to first channel-section steel.
Compared with the prior art, the concentric coaxial butt joint construction method of the steel pipe column and the tool column by the foundation pit reverse construction method provided by the invention has the advantages that after the steel pipe column and the tool column are hoisted to the supporting structure of the pedestal, the supporting structure is used for adjusting the heights of the central shafts of the steel pipe column and the tool column, and the steel pipe column and the tool column are butted after being adjusted to be concentric and coaxial; therefore, the butt joint precision between the steel pipe column and the tool column is more accurate, and the butt joint efficiency is higher.
Drawings
FIG. 1 is a front view of a steel pipe column and a tool column butted state adjusted by a pedestal according to an embodiment of the present invention;
fig. 2 is a schematic view of a support structure for adjusting the butting precision of steel pipe columns according to a first embodiment of the invention;
FIG. 3 is a schematic view of a support structure for adjusting the accuracy of tool post docking provided by a first embodiment of the present invention;
FIG. 4 is a schematic view of a support structure for adjusting the butting precision of steel pipe columns according to a second embodiment of the invention;
FIG. 5 is a schematic view of a support structure for adjusting the accuracy of tool post docking provided by a second embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating a vertical butt joint accuracy check of a steel pipe column and a tool column according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a horizontal direction butting precision verification of a steel pipe column and a tool column according to an embodiment of the invention.
In the figure: the steel pipe column comprises an a-steel pipe column, a b-tool column, a c-laser level meter, a 100-pedestal, a 101-protective layer, a 200-supporting structure, a 201-lifting plate, a 2011-wedge block, a 2012-arc part, a 2013-elastic layer, a 202-first channel steel, a 2021-chute, a 2022-slide rail, a 2023-pulley, a 2024-rack bar, a 2025-embedding section, a 2026-embedding opening, a 203-second channel steel, a 2031-gear, a 300-driving element, a 400-notch and a 500-notch edge.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-7, the preferred embodiment of the present invention is shown.
The concentric coaxial butt joint construction method of the steel pipe column and the tool column by the foundation pit reverse construction method comprises the following steps:
s11), manufacturing the pedestal 100 by erecting a mold according to the position defined by the butt joint site; a support structure 200 is arranged above the pedestal 100, and the support structure 200 is provided with an arc part 2012 for supporting the steel pipe column a or the tool column b; the radian of the arc-shaped part 2012 is designed according to the radius size of the steel pipe column a or the tool column b, and channel steel is arranged on two sides of the arc-shaped part 2012; determining the number and the distance of the arranged pedestals 100 according to the lengths of the steel pipe column a and the tool column b, wherein the distance between every two adjacent pedestals 100 is 4-6 m;
s12) butting the steel pipe column a and the tool column b, firstly vertically hoisting the tool column b to the supporting structure 200, and then hoisting the steel pipe column a to the supporting structure 200 to enable the steel pipe column a and the tool column b to be in a concentric and coaxial state; the end face of the steel pipe column a is provided with a flange, the end face of the tool column b is provided with a bolt hole, after one end of the flange arranged on the steel pipe column a is aligned with one end of the bolt hole arranged on the tool column b, the preliminary connection is completed through bolts, and the tightness of the bolts is 60% -80%.
Therefore, after the steel pipe column a and the tool column b are hoisted to the supporting structure 200, the supporting structure 200 is used for adjusting the height of the central shafts of the steel pipe column a and the tool column b, and the steel pipe column a and the tool column are adjusted to be concentric and coaxial to be in butt joint, so that the butt joint precision between the steel pipe column a and the tool column b is more accurate, and the butt joint efficiency is higher.
S11), manufacturing a pedestal 100, namely, manufacturing the pedestal 100 by supporting a mold according to the position defined by the docking site, wherein the casting height of the pedestal 100 is 25-40cm, preferably, the casting height of the pedestal 100 is 30cm, under the specific requirement of a customer, the casting height of the pedestal 100 can be set to be 20cm or 15cm, and the pedestal 100 is manufactured by adopting concrete with the strength of C25; the pedestal 100 serves as a support stress structure, and the pedestal 100 is used for supporting and stabilizing the steel pipe column a and the tool column b.
A support structure 200 is arranged above the pedestal, and in terms of the manufacturing of the support structure 200, the support structure 200 is made of a steel plate with the thickness of 8mm-12mm, preferably 10mm, and the steel plate with the thickness of 10mm for preparing the support structure 200 is embedded and fixed on the pedestal 100 according to the designed elevation position; the support structure 200 has an arc part for supporting the steel pipe column a or the tool column b, the arc part 2012 is designed according to the radius size of the steel pipe column a or the tool column b, and channel steel is provided on both sides of the arc part 2012.
Preferably, the channel steel can be selectively fixed on the pedestal 100, and a concrete protection layer 101 is reserved; alternatively, an insertion section 2025 may be provided at the lower end of the channel, an insertion opening 2026 may be provided at the lower portion of the insertion section 2025, and the insertion opening 2026 may be fitted to the upper portion of the base 100.
The number and the spacing of the arrangement pedestals 100 are determined according to the lengths of the steel pipe column a and the tool column b, the spacing between two adjacent pedestals 100 is 4-6m, and preferably, the spacing between two pedestals 100 is 5 m.
S21), in the step of butt joint of the steel pipe column a and the tool column b, firstly vertically hoisting the tool column to the supporting structure 200, preferentially hoisting the tool column b by adopting two-point vertical hoisting, then hoisting the steel pipe column a to the supporting structure 200, and certainly, hoisting the steel pipe column a firstly and then hoisting the tool column b; the bolt butt joint positioning mark is made on the butt joint end face of the tool column b by using a painting brush in advance on the tool column b, the bolt hole is formed in the end face of the tool column b, the flange is arranged on the end face of the steel pipe column a, after one end of the steel pipe column provided with the flange is aligned with one end of the tool column b provided with the bolt hole, the steel pipe column a and the tool column b are preliminarily locked and connected by using the bolt, the tightness of the bolt is 60% -80%, and the bolt and the tool column are concentric and coaxial.
And S11), before the step, the processed steel pipe column a and the tool column b are subjected to sectional inspection before delivery, and the steel pipe column a and the tool column b are transported to a butt joint site after the inspection is qualified.
Through the inspection to steel-pipe column a and instrument post b to improve maneuverability, and conveniently use the vehicle to transport.
The steel pipe column a and the tool column b are made of steel plates with the thickness of 8mm-12mm, preferably 10mm, and are manufactured according to the structure and verticality requirements in the preset standard and the requirements on the longitudinal flexibility, ovality, pipe end flatness, verticality and the like of the steel pipe column a and the tool column b, and the steel pipe column a and the tool column b are subjected to sectional inspection and then delivered according to the indexes and parameter requirements.
S11), firstly, carrying out site hardening treatment on the butt-joint site, firstly cleaning the ground of the butt-joint site, and flatly compacting the ground of the butt-joint site; then, a C15 concrete terrace with the thickness of 20cm is poured, the flatness error within the range of 10m of the foundation surface is less than or equal to 3mm, and the flatness error outside the range of 10m of the foundation surface is less than or equal to 5 mm; the docking site floor is finally dried and the installation location of the pedestal 100 is identified.
The field hardening process is required to be completed before the fabrication of the pedestal 100, and the field hardening process and the segmental verification of the steel pipe column a and the tool column b can be performed simultaneously.
And S21), performing micro adjustment on the preliminarily connected steel pipe column a and the tool column b, welding wedge-shaped steel blocks on two sides of the steel pipe column a, jacking the wedge-shaped steel blocks by using a jack, adjusting and aligning the bolt hole position of the joint between the steel pipe column a and the tool column b, adjusting the tightness of the aligned reinforcing bolt, and performing primary sealing on the joint of the bolt through a sealing material.
By using the jack to jack the wedge 2011-shaped block, the fine adjustment of the steel pipe column a and the tool column b hoisted on the supporting structure 200 is preliminarily completed, and the first sealing is carried out so as to conveniently enter the next operation.
S21), verifying the vertical direction butt joint precision and the horizontal direction butt joint vertical precision of the steel pipe column a after micro adjustment;
for the verification of the butting precision of the steel pipe column a in the vertical direction, 1-n measuring points are marked on the outer side wall of the steel pipe column a along the length direction of the steel pipe column a, and the height value of the steel pipe column a at each measuring point is measured and marked as H1, H2, … and Hn; then, calculating an error value by adopting a calculation formula, confirming the range of the error value, if the range of the error value exceeds a set value, laterally returning to the previous step, and if not, entering the next step;
and (3) checking the error value in the vertical direction of the steel pipe column a, wherein the formula calculation mode is as follows: and (3) calculating an error m1 by adopting a Bessel formula, if m1 is not more than 1/800, performing verification of the butting precision in the horizontal direction, and if m1 is not less than 1/800, loosening bolts at the joint between the butted steel pipe column a and the tool column b, and readjusting the butting until the error m1 is not more than 1/800.
Regarding the verification of the butt joint precision of the steel pipe column a in the horizontal direction, arranging two laser levels c on two sides of one end, far away from the tool column b, of the steel pipe column a, adjusting the positions of the two laser levels c to enable a laser line to be parallel to the axis of the steel pipe column a, and enabling the height of the laser line to be consistent with the height of the axis of the steel pipe column a; selecting n measuring points at two ends of the steel pipe column a and near the butt joint position of the steel pipe column a and the steel pipe column a along the length direction of the steel pipe column a; measuring the distances from the pipe walls on two sides of the steel pipe column a to laser lines of two laser levels c at measuring points by adopting a ruler with horizontal bubbles, and recording L1, L2, …, Ln and R1, R2 … and Rn respectively; and calculating error values by using a calculation formula according to the data L1, L2, … and Ln, confirming the range of the error values, returning to the previous step if the range of the error values exceeds a set value, and entering the next step if the range of the error values does not exceed the set value.
The error value obtained by the horizontal direction verification of the steel pipe column a is calculated by the following formula: obtaining a left-direction bending error m2 by adopting a Bessel formula, and obtaining a right-direction bending error m3 by adopting the Bessel formula according to data R1, R2 … and Rn; and if both m2 and m3 are less than or equal to 1/800, entering a welding and fixing process, and if one of m2 and m3 is more than 1/800, loosening bolts at the joint between the butted steel pipe column a and the tool column b, and readjusting the butt joint until both m2 and m3 are less than or equal to 1/800.
By checking the vertical direction butt joint precision and the horizontal direction butt joint precision of the steel pipe column a and the tool column b, whether the steel pipe column a and the tool column b can meet the requirement of welding and fixing can be effectively judged, and the safety of later-stage operation is ensured.
After the butt joint precision of the steel pipe column a and the tool column b is inspected to be qualified, welding and fixing bolts at the joint; and after the bolt welding is finished, performing secondary sealing on a gap at the joint between the steel pipe column a and the tool column b by adopting a sealing material.
Through welded fastening and secondary seal to steel-pipe column a and instrument post b, can guarantee the safety and feasibility of subsequent handling, provide the efficiency of construction, avoid the fail safe problem of construction.
As a preferred embodiment, the construction method for butting the steel pipe column a and the tool column b by the foundation pit reverse construction method comprises the following overall construction processes:
firstly, carrying out field hardening treatment on a butt joint field, firstly cleaning the ground of the butt joint field, and flatly compacting the ground of the butt joint field; then, a C15 concrete terrace with the thickness of 20cm is poured, the flatness error within the range of 10m of the foundation surface is less than or equal to 3mm, and the flatness error outside the range of 10m of the foundation surface is less than or equal to 5 mm; and finally, drying the ground of the butt joint site, and marking the installation position of the pedestal.
And secondly, performing sectional inspection on the steel pipe column a and the tool column b, performing sectional inspection on the processed steel pipe column a and the processed tool column b before delivery, and transporting the steel pipe column a and the tool column b to a butt joint site after the inspection is qualified.
Thirdly, manufacturing the pedestal 100, namely, erecting a mold according to the position defined by the butt joint site to manufacture the pedestal 100; a support structure is arranged above the pedestal 100, and the support structure 200 is provided with an arc part 2012 for supporting the steel pipe column a or the tool column b; the radian of the arc-shaped part 2012 is designed according to the radius size of the steel pipe column a or the tool column b, and channel steel is arranged on two sides of the arc-shaped part 2012; the number and the spacing of the arrangement pedestals 100 are determined according to the lengths of the steel pipe column a and the tool column b, and the spacing between two adjacent pedestals 100 is 4-6 m.
Fourthly, butting the steel pipe column a and the tool column b, hoisting the steel pipe column a and the tool column b to the supporting structure 200, and enabling the height of the central shaft of the steel pipe column a to be approximately equal to that of the central shaft of the tool column b; the end face of the steel pipe column a is provided with a flange, the end face of the tool column b is provided with a bolt hole, after one end of the flange arranged on the steel pipe column a is aligned with one end of the bolt hole arranged on the tool column b, the preliminary connection is completed through bolts, and the tightness of the bolts is 60% -80%.
Fifthly, fine adjustment is carried out on the steel pipe column a and the tool column b after preliminary connection is completed, wedge-shaped steel blocks are welded on two sides of the steel pipe column a, a jack is used for jacking the wedge-shaped steel blocks, the bolt hole positions of the connection position between the steel pipe column a and the tool column b are adjusted and aligned, the tightness of the reinforcing bolt after alignment is adjusted, and the connection position of the bolt is sealed for the first time through a sealing material.
Sixthly, checking the butt joint precision of the steel pipe column a and the tool column b, and checking the butt joint precision in the vertical direction and the butt joint precision in the horizontal direction of the steel pipe column a after fine adjustment;
for the verification of the butting precision of the steel pipe column a in the vertical direction, 1-n measuring points are marked on the outer side wall of the steel pipe column a along the length direction of the steel pipe column a, and the height value of the steel pipe column a at each measuring point is measured and marked as H1, H2, … and Hn; then, calculating an error value by adopting a calculation formula, confirming the range of the error value, if the range of the error value exceeds a set value, laterally returning to the previous step, and if not, entering the next step;
regarding the verification of the butt joint precision of the steel pipe column a in the horizontal direction, arranging two laser levels c on two sides of one end, far away from the tool column b, of the steel pipe column a, adjusting the positions of the two laser levels c to enable a laser line to be parallel to the axis of the steel pipe column a, and enabling the height of the laser line to be consistent with the height of the axis of the steel pipe column a; selecting n measuring points at two ends of the steel pipe column a and near the butt joint position of the steel pipe column a and the steel pipe column a along the length direction of the steel pipe column a; measuring the distances from the pipe walls on two sides of the steel pipe column a to laser lines of two laser levels c at measuring points by adopting a ruler with horizontal bubbles, and recording L1, L2, …, Ln and R1, R2 … and Rn respectively; and calculating error values by using a calculation formula according to the data L1, L2, … and Ln, confirming the range of the error values, returning to the previous step if the range of the error values exceeds a set value, and entering the next step if the range of the error values does not exceed the set value.
Welding and fixing the steel pipe column a and the tool column b, and welding and fixing the bolts at the joint after the butt joint precision of the steel pipe column a and the tool column b is qualified; and after the bolt welding is finished, performing secondary sealing on a gap at the joint between the steel pipe column a and the tool column b by adopting a sealing material.
As a preferred embodiment, please refer to fig. 1-5, the supporting structure 200 is provided with a lifting plate 201, the upper part of the lifting plate 201 is provided with an arc part 2012, the supporting surface of the arc part is provided with an elastic layer, the surface of the elastic layer is provided with a groove, and the steel pipe column a and the tool column b are hung on the arc part 2012 to be butted; the lifting plate 201 side is equipped with a plurality of channel-section steels, lifting plate 201 and channel-section steel swing joint or fixed connection, and steel-pipe column a and instrument post b carry out the butt joint precision through the lift activity of lifting plate 201 and adjust.
Therefore, after the steel pipe column a and the tool column b are hung on the arc-shaped part 2012, the axial center positions of the steel pipe column a and the tool column b are synchronously or asynchronously controlled through the lifting movement of the lifting plate 201, so that the steel pipe column a and the tool column b reach a concentric and coaxial state, the butt joint precision adjustment of the steel pipe column a and the tool column b is realized, the axial center butt joint of the steel pipe column a and the tool column b is more accurate, and the butt joint construction efficiency is higher.
The support structure 200 is disposed on the pedestal 100, and the pedestal 100 exerts a supporting force on the support structure 200 as a whole; the supporting structure 200 is provided with a lifting plate 201, the selected steel plate can be used for manufacturing channel steel and the lifting plate 201, the arc-shaped part 2012 is arranged at the upper part of the lifting plate 201, the upper part of the lifting plate 201 is cut and processed to form an inwards concave arc-shaped gap, the arc-shaped gap is the arc-shaped part 2012, and the steel pipe column a and the tool column b are supported by the arc-shaped part 2012; the lifting plate 201 is used for adjusting the vertical butt joint accuracy and the horizontal butt joint accuracy of the steel pipe column a and the tool column b.
An elastic layer 2013 is arranged on the supporting surface of the arc-shaped part 2012, a groove is formed in the surface of the elastic layer 2013, when the steel pipe column a or the tool column b is hung on the arc-shaped part 2012, pressure can be generated on the elastic layer 2013, and therefore the elastic layer 2013 deforms, and the groove is formed in the upper surface of the elastic layer 2013; therefore, when the elastic layer 2013 is deformed, the side openings of the two sides of the groove abut against each other, so that the elastic layer 2013 is prevented from being expanded by internal force, the axial position of the steel pipe column a or the tool column b can be properly adjusted by the deformation of the elastic layer, or the arc part is prevented from being damaged by the gravity of the steel pipe column a or the tool column b.
The lifter plate 201 is movably connected with a plurality of channel steel, the upper portion of the lifter plate 201 is provided with an arc-shaped portion 2012, the steel pipe column a and the tool column b are supported and placed on the arc-shaped portion 2012 of the lifter plate 201 through hoisting, and therefore the butt joint precision of the steel pipe column a and the tool column b is adjusted through the lifting movement of the lifter plate 201.
The lifting plate 201 is vertically or parallelly connected with the channel steel; the channel steel comprises a first channel steel 202 and a second channel steel 203, the back side of the first channel steel 202 is movably or fixedly connected with the lifting plate 201, and the notch 400 side of the first channel steel 202 is movably or fixedly connected with the second channel steel 203; in practical applications, the first channel section 202 is preferably movably or fixedly connected to the second channel section 203 perpendicularly.
Through setting up first channel-section steel 202, second channel-section steel 203, and carry out swing joint or fixed connection with lifter plate 201 to this diversified lift activity that realizes lifter plate 201 makes the foundation structure of bearing structure 200 part more reasonable, and is more firm, guarantees that lifter plate 201 is to the butt joint regulation effect of steel-pipe column a and instrument post b.
Regarding S11), a preferred embodiment of the pedestal is fabricated.
First embodiment
Referring to fig. 2-3, when the lifting plate 201 is movably connected to the first channel steel 202, the first channel steel 202 is fixedly connected to the second channel steel 203, a sliding groove 2021 is formed in the back side of the first channel steel 202, a sliding rail is arranged in the sliding groove 2021, pulleys 2023 are arranged on two side edges of the lifting plate 201 connected to the first channel steel 202, and the pulleys 2023 are connected to the sliding rail 2022 in a matching manner; the front side and the rear side of the lifting plate 201 are provided with wedge blocks 2011, the pedestal 100 is provided with a driving element 300 at a position corresponding to the wedge blocks 2011, the driving element 300 is connected with the wedge blocks 2011 in a propping manner, the driving element 300 drives the wedge blocks 2011, and the lifting plate 201 slides along the direction of a slide rail 2022 through pulleys 2023 at two sides.
The sliding groove 2021 is arranged on the back side of the first channel steel 202, the sliding rail 2022 is arranged in the sliding groove 2021, the pulleys 2023 are arranged on the two side sides of the lifting plate 201, and the pulleys 2023 are embedded into the sliding groove 2021 and connected with the sliding rail 2022, so that the pulleys 2023 can slide along the direction of the sliding rail 2022; the wedge blocks 2011 are arranged on two side surfaces of the lifting plate 201, and the wedge blocks 2011 are driven by the driving element 300 to move up and down along the direction of the slide rail 2022 through the pulley 2023, so that the butt joint precision adjustment effect of the steel pipe column a and the tool column b is achieved.
The lower end of the first channel steel 202 is provided with an embedding section 2025, the embedding section 2025 is fixedly embedded in the upper part of the pedestal 100, similarly, the lower part of the second channel steel 203 is also fixedly connected with the upper part of the pedestal 100, and the first channel steel 202 and the second channel steel 203 are fixedly connected with the pedestal 100, so that the concrete of the pedestal 100 is not completely cured or fixed, and is simultaneously reinforced by screws; the embedding section 2025 is far away from a part of the bottom of the pedestal 100 to form the protection layer 101, and the part of the remaining protection layer 101 takes the integral internal stress problem of the pedestal 100 into consideration to prevent the pedestal 100 from breaking even under the excessive pressure, so that the first channel steel 202 and the second channel steel 203 are fixed on the pedestal 100, and the lifting plate 201 can be well balanced or stably lifted and lowered.
The direction of the notch 400 of the first channel steel 202 is the same as that of the notch 400 of the second channel steel 203, at this time, the notch edge 500 of the first channel steel 202 contacts the back side of the second channel steel 203, a sliding groove 2021 is arranged on the back side of the first channel steel 202, the sliding groove 2021 is arranged along the vertical direction of the first channel steel 202, a sliding rail 2022 is arranged in the sliding groove 2021 and along the length direction of the sliding groove 2021, and two side edges of the lifting plate 201 are respectively movably connected with the first channel steel 202; specifically, the two side edges of the lifting plate 201 are provided with the pulleys 2023, and the pulleys 2023 are equidistantly arranged in the vertical direction of the two side edges of the lifting plate 201, so that the lifting plate 201 can be movably connected with the first channel steel 202 by embedding the pulleys 2023 into the sliding rails 2022.
The front side and the rear side of the lifting plate 201 are provided with wedge blocks 2011, and the design requirement of the wedge blocks 2011 is that the wedge blocks 2011 need to be perpendicular to the front side and the rear side of the lifting plate 201 and extend towards the direction far away from the front side and the rear side of the lifting plate 201, so that a convex wedge block 2011 structure is formed; a driving element 300 is arranged on the pedestal 100 below the position of the wedge-shaped block 2011 of the lifting plate 201, and the upper end of the driving element 300 is abutted against the bottom of the wedge-shaped block 2011; when the lifting plate 201 is movably connected with the slide rail 2022 at the back side of the first channel steel 202 through the pulley 2023, the wedge-shaped block 2011 together with the lifting plate 201 can be jacked up to move or pulled down to move by starting the driving element 300, so that the lifting movement of the lifting plate 201 is completed, and the effect of adjusting the butting precision of the steel pipe column a and the tool column b is achieved.
The driving element 300 includes a hydraulic pump, a pneumatic pump, and a motor; further, the motor includes a linear motor or other suitable motor.
Second embodiment
Referring to fig. 4-5, the same parts as those in the first embodiment are not repeated herein, when the lifting plate 201 is fixedly connected to the first channel steel 202, the first channel steel 202 is movably connected to the second channel steel 203, the back side of the first channel steel 202 is provided with a rack 2044, a notch 400 of the second channel steel 204 is provided with a gear 2031, the gear passes through the second channel steel 203 and is engaged with the rack 2044, and the gear 2031 is driven by the driving element 300 to drive the gear 2024, so that the first channel steel 202 moves up and down along the vertical direction of the second channel steel 203.
Through setting up insection strip 2044 in notch 400 side at first channel-section steel 202, set up gear 2031 in notch 400 department of second channel-section steel 203, and make gear 2031 and insection strip 2044 interlock be connected, gear 2031 drives insection strip 2044 under the drive of drive element 300, makes first channel-section steel 202 along the vertical direction lift activity of second channel-section steel 203, realizes the effect that the butt joint precision of steel-pipe column a and tool column b was adjusted.
Notch 400 of first channel-section steel 202 is unanimous with the notch 400 orientation of second channel-section steel 203, sets up insection strip 2044 in notch 400 side of first channel-section steel 202, and insection strip 2044 sets up along the vertical direction of first channel-section steel 202, and insection strip 2044 is fixed with the bottom of the tank bottom of first channel-section steel 202, or sets up protruding platform at the tank bottom of first channel-section steel 202 and installs insection strip 2044, and the insection of insection strip 2044 sets up towards second channel-section steel 203 one side.
A gear 2031 is provided at the notch 400 of the second channel 203, the gear 2031 is engaged with the rack 2044 by penetrating through the bottom of the second channel 203, the gear 2031 is drivingly connected to the driving element 300, the gear 2031 is connected to the driving element 300 by a belt or coaxially, and then the driving element 300 can be provided on the pedestal 100 on the notch 400 side of the second channel 203.
The lower end of the first channel section 202 has an insertion opening 2026, the width of the insertion opening 2026 is wider than the width of the pedestal 100, and when the first channel section 202 moves downward, the insertion opening 2026 is fitted and connected to the upper portion of the pedestal 100; thus, the first channel section 202 can be kept balanced or stable with the pedestal 100 during the lifting movement, the portions of the fitting openings 2026 fitted to the both side edges of the pedestal 100 are fitting sections 2025, and the fitting sections 2025 are fitted to the front and rear side surfaces of the pedestal 100.
The gear 2031 is driven by the driving element 300 to drive the insection strip 2044, so that the first channel steel 202 can move up and down along the vertical direction of the second channel steel 203, and the effect of moving up and down the lifting plate 201 can be realized by the same method; meanwhile, a positioning member may be disposed on the back side of the second channel steel 203, and the positioning member positions the groove edge 500 of the first channel steel 202, so as to keep the stability of the first channel steel 202 during the lifting movement.
In the first embodiment and the second embodiment, after the steel pipe column a and the tool column b are hoisted and placed; each driving element 300 is started through synchronous or asynchronous control, and the driving elements 300 can be selectively connected with a user terminal on line for operation, remotely controlled on the user terminal and controlled on site; the driving element 300 correspondingly controls the lifting plate 201 on each pedestal 100, so as to adjust the vertical butt joint precision and the horizontal butt joint precision of the steel pipe column a and the tool column b.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The concentric coaxial butt joint construction method of the steel pipe column and the tool column by the foundation pit reverse construction method is characterized by comprising the following steps of:
s11), manufacturing a pedestal by erecting a mold according to the position defined by the butt joint site; a support structure is arranged above the pedestal, and the support structure is provided with an arc part for supporting a steel pipe column or a tool column; the radian of the arc-shaped part is designed according to the radius size of the steel pipe column or the tool column, and channel steel is arranged on two sides of the arc-shaped part; determining the number and the distance of the arranged pedestals according to the lengths of the steel pipe column and the tool column, wherein the distance between every two adjacent pedestals is 4-6 m;
s21), butting the steel pipe column and the tool column, and hoisting the steel pipe column and the tool column to a support structure to enable the steel pipe column and the tool column to be concentric and coaxial; the terminal surface of steel-pipe column has the flange, and the terminal surface of instrument post has the bolt hole, and the steel-pipe column sets up flange one end and instrument post and sets up the bolt hole one end and align the back each other, accomplishes initial connection through the bolt, and the tightness of bolt this moment is 60% -80%.
2. The construction method according to claim 1, wherein before the step S11), the processed steel pipe column and tool column are subjected to a pre-factory sectional inspection, and the steel pipe column and tool column are transported to a docking site after passing the inspection.
3. The construction method as claimed in claim 1, wherein in the step S21), the preliminary connection of the steel pipe column and the tool column is performed by fine adjustment, wedge-shaped steel blocks are welded to both sides of the steel pipe column, the wedge-shaped steel blocks are jacked using a jack, the positions of bolt openings at the connection between the steel pipe column and the tool column are adjusted and aligned, the tightness of the aligned reinforcing bolts is adjusted, and the connection of the bolts is primarily sealed with a sealing material.
4. The construction method according to claim 3, wherein in the step of S21), the vertical direction butting precision and the horizontal direction butting vertical precision of the steel pipe column after the micro adjustment are checked;
for the verification of the vertical butt joint accuracy of the steel pipe column, 1-n measuring points are marked on the outer side wall of the steel pipe column along the length direction of the steel pipe column, and the height value of the steel pipe column at each measuring point is measured and marked as H1, H2, … and Hn; then, calculating an error value by adopting a calculation formula, confirming the range of the error value, if the range of the error value exceeds a set value, laterally returning to the previous step, and if not, entering the next step;
the method comprises the following steps of (1) checking the horizontal direction butt joint precision of the steel pipe column, arranging two laser levels on two sides of one end, far away from a tool column, of the steel pipe column, and adjusting the positions of the two laser levels to enable a laser line to be parallel to the axis of the steel pipe column, wherein the height of the laser line is consistent with the height of the axis of the steel pipe column; selecting n measuring points at two ends of the steel pipe column and near the butt joint position of the steel pipe column and the steel pipe column along the length direction of the steel pipe column; measuring the distances from the pipe walls on the two sides of the steel pipe column to the laser lines of the two laser levels respectively at a measuring point by adopting a ruler with horizontal bubbles, and recording L1, L2, …, Ln and R1, R2 … and Rn respectively; and calculating error values by using a calculation formula according to the data L1, L2, … and Ln, confirming the range of the error values, returning to the previous step if the range of the error values exceeds a set value, and entering the next step if the range of the error values does not exceed the set value.
5. The construction method according to claim 2, wherein before the step of S11), the butt-joint site is hardened, first, the ground of the butt-joint site is cleaned, and the ground of the butt-joint site is compacted; then, a C15 concrete terrace with the thickness of 20cm is poured, the flatness error within the range of 10m of the foundation surface is less than or equal to 3mm, and the flatness error outside the range of 10m of the foundation surface is less than or equal to 5 mm; and finally, drying the ground of the butt joint site, and marking the installation position of the pedestal.
6. The construction method according to claim 5, wherein the field hardening treatment is performed before the fabrication of the foundation, and the field hardening treatment and the segmental verification of the steel pipe column and the tool column are performed simultaneously.
7. The construction method according to claim 4, wherein after the butt joint precision of the steel pipe column and the tool column is inspected to be qualified, bolts at the joint are welded and fixed; and after the bolt is welded, performing secondary sealing on a gap at the joint between the steel pipe column and the tool column by adopting a sealing material.
8. The construction method according to claim 1, wherein the support structure is provided with a lifting plate, the lifting plate is provided with the arc-shaped part, an elastic layer is arranged on the support surface of the arc-shaped part, the surface of the elastic layer is provided with a groove, and the steel pipe column and the tool column are hung on the arc-shaped part to be butted; the steel pipe column is characterized in that the channel steels are arranged on the side edge of the lifting plate, the lifting plate is movably or fixedly connected with the channel steels, and the steel pipe column and the tool column are butted with each other with adjustable precision through the lifting movement of the lifting plate.
9. The construction method according to claim 8, wherein the lifting plate is connected with the channel steel vertically or in parallel; the channel-section steel includes first channel-section steel and second channel-section steel, the dorsal part of first channel-section steel with lifter plate swing joint or fixed connection, the notch side of first channel-section steel with second channel-section steel swing joint or fixed connection.
10. The construction method according to claim 9, wherein when the lifting plate is movably connected with the first channel steel, the first channel steel is fixedly connected with the second channel steel, a sliding groove is formed in the back side of the first channel steel, a sliding rail is arranged in the sliding groove, pulleys are arranged on two side edges of the lifting plate connected with the first channel steel, and the pulleys are connected with the sliding rail in a matching manner; wedge-shaped blocks are arranged on the front side and the rear side of the lifting plate, a driving element is arranged on the pedestal and corresponds to the wedge-shaped blocks, the driving element is abutted to drive the wedge-shaped blocks, and the lifting plate slides along the direction of the slide rail through pulleys on two side edges;
the lifter plate with during first channel-section steel fixed connection, first channel-section steel with second channel-section steel swing joint, the dorsal part of first channel-section steel is equipped with the profile rack, be equipped with the gear in the notch of second channel-section steel, the gear pass the second channel-section steel with the profile rack interlock is connected, through the drive element drive the gear, the gear drives the gear strip makes the vertical direction lift activity of second channel-section steel is followed to first channel-section steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110269835.7A CN113216261A (en) | 2021-03-12 | 2021-03-12 | Concentric and coaxial butt joint construction method for steel pipe column and tool column by foundation pit reverse construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110269835.7A CN113216261A (en) | 2021-03-12 | 2021-03-12 | Concentric and coaxial butt joint construction method for steel pipe column and tool column by foundation pit reverse construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113216261A true CN113216261A (en) | 2021-08-06 |
Family
ID=77083627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110269835.7A Pending CN113216261A (en) | 2021-03-12 | 2021-03-12 | Concentric and coaxial butt joint construction method for steel pipe column and tool column by foundation pit reverse construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113216261A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6616380B1 (en) * | 2002-06-03 | 2003-09-09 | Matthew F. Russell | Subterranean structures and methods for constructing subterranean structures |
| CN103557373A (en) * | 2013-11-12 | 2014-02-05 | 成都科盛石油科技有限公司 | Petroleum pipeline installing mechanism |
| CN104633456A (en) * | 2015-02-03 | 2015-05-20 | 成都大漠石油机械有限公司 | Oil pipeline capable of listening for oil flowing state |
| CN104728525A (en) * | 2015-02-03 | 2015-06-24 | 成都大漠石油机械有限公司 | Shock-resistant petroleum pipeline fixing base |
| CN208535310U (en) * | 2018-05-14 | 2019-02-22 | 李鑫 | Pipeline butt joint auxiliary device |
| CN209278851U (en) * | 2018-11-21 | 2019-08-20 | 山东华滨化工科技有限公司 | A kind of isooctane production delivery pipe channel fixing device with detection function |
| CN111424674A (en) * | 2020-05-06 | 2020-07-17 | 深圳市工勘岩土集团有限公司 | Foundation pit reverse construction method steel pipe structure column butt joint platform and butt joint method |
-
2021
- 2021-03-12 CN CN202110269835.7A patent/CN113216261A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6616380B1 (en) * | 2002-06-03 | 2003-09-09 | Matthew F. Russell | Subterranean structures and methods for constructing subterranean structures |
| CN103557373A (en) * | 2013-11-12 | 2014-02-05 | 成都科盛石油科技有限公司 | Petroleum pipeline installing mechanism |
| CN104633456A (en) * | 2015-02-03 | 2015-05-20 | 成都大漠石油机械有限公司 | Oil pipeline capable of listening for oil flowing state |
| CN104728525A (en) * | 2015-02-03 | 2015-06-24 | 成都大漠石油机械有限公司 | Shock-resistant petroleum pipeline fixing base |
| CN208535310U (en) * | 2018-05-14 | 2019-02-22 | 李鑫 | Pipeline butt joint auxiliary device |
| CN209278851U (en) * | 2018-11-21 | 2019-08-20 | 山东华滨化工科技有限公司 | A kind of isooctane production delivery pipe channel fixing device with detection function |
| CN111424674A (en) * | 2020-05-06 | 2020-07-17 | 深圳市工勘岩土集团有限公司 | Foundation pit reverse construction method steel pipe structure column butt joint platform and butt joint method |
Non-Patent Citations (1)
| Title |
|---|
| 王宗杰等，机械工业出版社, 机械工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3852970A (en) | Building raising and underpinning system | |
| CN109356210B (en) | Pile foundation building inclination correction pile interception underpinning limiting structure and construction method thereof | |
| CN111962504A (en) | Construction method for covering and digging top-down permanent steel pipe column | |
| CN111945714B (en) | Steel sleeve guiding method combined with steel upright column inserting construction method | |
| CN113737796A (en) | Construction method for high-pressure water flushing assisted pile driving and pile pulling synchronous grouting of steel plate pile | |
| CN110863495A (en) | Steel pipe column inserting accurate positioning structure and accurate positioning construction method | |
| CN114541652A (en) | V-shaped steel column and construction method thereof | |
| CN216006947U (en) | Fabricated verticality adjusting operation frame for one-pile one-column steel pipe column by reverse construction method | |
| US11946217B1 (en) | Top plate jacking device and jacking construction method configured for V-shaped columns | |
| US7484913B2 (en) | Placing elements in piles | |
| CN117287044A (en) | Prefabricated part hoisting construction method | |
| CN113216261A (en) | Concentric and coaxial butt joint construction method for steel pipe column and tool column by foundation pit reverse construction method | |
| CN108677978B (en) | Sinking construction method for bridge unbonded prestressed spliced double-wall steel cofferdam | |
| CN114439242B (en) | Assembly type cantilever complex component optimization and hoisting reinforcement construction method | |
| JP6866031B2 (en) | How to build the core material | |
| CN115324105A (en) | Permanent steel pipe column positioning and verticality adjusting device for cover-excavation top-down construction method and construction method | |
| CN213507989U (en) | Deepwater steel trestle capable of being constructed quickly | |
| CN114718053A (en) | Method for installing and positioning foundation pit steel stand column by reverse construction method and installation structure | |
| JP2556215B2 (en) | Construction method | |
| CN114182883A (en) | Large-section square tube concrete column and construction method | |
| CN215290120U (en) | Concentric coaxial butt-joint platform structure of steel pipe column and tool column | |
| CN112942809A (en) | Combined template assembling method capable of realizing mechanical construction | |
| CN117926866B (en) | Method for manufacturing cast-in-place pile deviation correction under building foundation by adopting horizontal reaming | |
| CN221461220U (en) | Interpolated precast pile TRD wall combined prestressed profile steel support foundation pit combined supporting structure | |
| CN114657991B (en) | Floating type steel pipe pile inserting and driving positioning device and application method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210806 |