CN116537192A - Auxiliary system for positioning and mounting lattice column and construction method thereof - Google Patents
Auxiliary system for positioning and mounting lattice column and construction method thereof Download PDFInfo
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- CN116537192A CN116537192A CN202310480789.4A CN202310480789A CN116537192A CN 116537192 A CN116537192 A CN 116537192A CN 202310480789 A CN202310480789 A CN 202310480789A CN 116537192 A CN116537192 A CN 116537192A
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- 238000010276 construction Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 33
- 239000010959 steel Substances 0.000 claims description 33
- 230000002787 reinforcement Effects 0.000 claims description 23
- 238000005553 drilling Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000036544 posture Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 230000000712 assembly Effects 0.000 description 8
- 238000000429 assembly Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 238000005452 bending Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/04—Guide devices; Guide frames
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/06—Placing concrete under water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention provides an auxiliary system for positioning and mounting a lattice column and a construction method thereof. The auxiliary system comprises a guide frame and a positioning mechanism, wherein the guide frame can be inserted into the lattice column in a nested manner and is detachably connected with the lattice column, and the guide frame comprises a positioning frame body and a plurality of first positioning blocks fixed on the outer side of the positioning frame body; the positioning mechanism is used for controlling the center deviation and the verticality of the lattice column by adjusting the center deviation and the verticality of the guide frame, and comprises a rectangular frame with a hollow inside, four jacks arranged at the bottoms of four corners of the rectangular frame, and an adjusting mechanism for adjusting the orifice size of an orifice through which the guide frame passes, wherein the orifice is positioned in the frame body of the rectangular frame, the orifice size of the orifice is matched with the size of the positioning frame body, and a plurality of first positioning blocks are positioned on the rectangular frame and are abutted with the rectangular frame. By adopting the auxiliary system to install the lattice column, the positioning difficulty of the ultra-long empty pile lattice column is reduced, the positioning operation time is effectively shortened, and the positioning effect is stable and reliable.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to an auxiliary system for positioning and mounting a lattice column and a construction method thereof.
Background
Along with the rapid development of urban construction, rail transit such as subways and magnetic suspension is planned and constructed in all first-line cities well as the places of the flowers, and deep and large foundation pit projects related to subways or magnetic suspension stations are also endlessly formed. Whether the top-down construction method is adopted or the open-cut forward construction method is adopted, the foundation pit excavation should follow the principle of' supporting first and then excavating. When the foundation pit is supported by adopting a plurality of inner supports, lattice columns are required to be arranged in order to avoid excessive deformation of the first concrete support caused by overlarge bending moment, so that the bending resistance of the supporting members is improved, and the integral stability of a foundation pit supporting system is ensured. The service quality of the lattice column is directly determined by the posture and verticality of the lattice column, so that the accurate positioning of the lattice column naturally becomes one of key links of foundation pit engineering construction.
At present, in the positioning construction of a lattice column, the common method for installing and adjusting the verticality of the lattice column comprises an air bag method, a correction frame method and a guide sleeve method, wherein the air bag method is limited by the air bag, the distance between the lattice column and the hole wall is generally larger, the verticality adjusting effect is weakened, the guide sleeve method is used for arranging the guide sleeve outside the lattice column, the hole diameter is necessarily enlarged, the correction frame method can only be used for supporting columns with larger rigidity, the rigidity of the lattice column is smaller, the bending deformation is difficult to control when torque is applied to the upper part of the lattice column, and the verticality adjustment is not facilitated. Meanwhile, the difficulties of guiding, positioning and verticality adjustment are increased by the longer lattice columns and the longer empty pile length.
Disclosure of Invention
The invention aims to provide an auxiliary system for positioning and mounting a lattice column and a construction method thereof, and the auxiliary system is used for mounting the lattice column, so that the positioning difficulty of the ultra-long empty pile lattice column is reduced, the positioning time is effectively shortened, and the positioning effect is stable and reliable.
To achieve the above object, the present invention provides an auxiliary system for positioning and mounting of lattice columns, the auxiliary system comprising:
the guide frame can be inserted into the lattice column in a nesting manner and is detachably connected with the lattice column, and comprises a positioning frame body extending along the length direction of the lattice column and connected with the lattice column, and a plurality of first positioning blocks fixed on the outer side of the positioning frame body, wherein the first positioning blocks are positioned at the same horizontal height and are mounted at the upper end of the positioning frame body;
the positioning mechanism is used for controlling the center deviation and the verticality of the lattice column by adjusting the center deviation and the verticality of the guide frame, and comprises a rectangular frame with hollow inside, four jacks arranged at the bottoms of four corners of the rectangular frame and an adjusting mechanism for adjusting the orifice size of an orifice through which the guide frame passes, wherein the orifice is positioned in the frame body of the rectangular frame, the orifice size of the orifice is matched with the size of the positioning frame body, and a plurality of first positioning blocks are positioned on the rectangular frame and are in butt joint with the rectangular frame.
In a specific embodiment, the adjusting mechanism includes two positioning rods, two ends of which are respectively connected with two sides of the rectangular frame and parallel to the first symmetry axis of the rectangular frame, the two positioning rods are respectively arranged on two sides of the first symmetry axis, and the interval distance between the two positioning rods can be adjusted, and the two positioning rods are respectively in butt joint with two ends of the top of the positioning frame body.
In a specific implementation mode, the adjusting mechanism further comprises two adjusting parts which are positioned in the middle of two positioning rods and symmetrically arranged relative to a second symmetry axis of the rectangular frame, the second symmetry axis is perpendicular to the first symmetry axis, each adjusting part comprises an adjusting nut fixedly installed on the rectangular frame, a top rod penetrating through the adjusting nut and in threaded connection with the adjusting nut, and a limiting plate installed at the tail end of the top rod and in fixed connection with the top rod, the top rod is parallel to the positioning rods, and the two limiting plates are respectively in butt joint with two sides of the top of the positioning frame.
In a specific embodiment, the rectangular frame includes two first support rods arranged oppositely, two second support rods with two ends connected with the two first support rods respectively and arranged oppositely, the two first support rods and the two second support rods are connected in a staggered manner to form the rectangular frame together, and two ends of the positioning rods are connected with the two first support rods respectively.
In a specific embodiment, the rectangular frame further comprises two long threaded holes formed in each first supporting rod, the two long threaded holes are symmetrically arranged with respect to a first symmetry axis of the rectangular frame, the extending directions of the two long threaded holes are identical to those of the first supporting rods, each positioning rod further comprises round threaded holes at two ends of the positioning rod, the adjusting mechanism further comprises four connecting bolts, and each connecting bolt sequentially penetrates through the round threaded holes and the long threaded holes to connect the positioning rod with the first supporting rods.
In a specific embodiment, the first positioning block comprises a first positioning block body part, a first positioning groove formed by inwards recessing the surface of the first positioning block body part away from the positioning frame body, a through hole penetrating through the first positioning groove is formed in a position opposite to the first positioning groove by the first supporting rod, the auxiliary system further comprises a first bolt, a nut of the first bolt is abutted to the first positioning block, and a screw rod of the first bolt sequentially penetrates through the first positioning groove and the through hole to be connected with the lattice column, so that the guide frame, the positioning mechanism and the lattice column are connected.
In a specific embodiment, the guide frame further comprises a plurality of limiting blocks installed on the outer side of the positioning frame and located below the first positioning blocks, the limiting blocks and the first positioning blocks are arranged in one-to-one correspondence, each limiting block comprises a limiting block body portion and a limiting groove formed by inwards sinking the surface of the positioning frame away from the limiting block body portion, the limiting groove is used for enabling the first bolts to penetrate through, and when the lattice columns are installed, the lower surfaces of the limiting blocks are in butt joint with the lattice columns.
In a specific embodiment, the positioning frame body comprises four first angle steels arranged at intervals and a plurality of first lacing plate groups, the four first angle steels are arranged in a pairwise symmetrical mode to form a columnar structure with a rectangular cross section, the plurality of first lacing plate groups are arranged at intervals along the length direction of the first angle steels, each first lacing plate group comprises four first lacing plates used for connecting two adjacent first angle steels, the number of the first positioning blocks is four, and the four first positioning blocks are respectively arranged on the outer sides of the four first lacing plates in the uppermost first lacing plate group.
In a specific embodiment, the number of the limiting blocks is four, the four limiting blocks are respectively installed at the outer sides of four first batten plates in the target first batten plate group, and the target first batten plate group is one of a plurality of first batten plate groups between the uppermost first batten plate group and the lowermost first batten plate group.
The invention also provides a construction method of the auxiliary system, which comprises the following steps:
(1) Leveling and compacting the ground on site, and measuring and paying off;
(2) Paving a roadbed box or a steel plate, positioning a hole forming device, and lowering a steel pile casing to finish the drilling construction of the column pile;
(3) After the drilling is completed, cleaning up mud, soil and the like around the drilling, and paying off according to the extension line of the midpoint of the sides of the lattice column 4;
(4) Installing a positioning mechanism at the orifice, and adjusting four jacks of the positioning mechanism to center a level bubble on the positioning mechanism;
(5) Hoisting and lowering the reinforcement cage, lowering the lattice column when the reinforcement cage is lowered to the orifice position, and enabling the lattice column to extend into the reinforcement cage for 3m;
(6) After the lattice column is flexibly connected with the reinforcement cage, the lattice column is integrally lowered;
(7) After the lattice column is lowered to the target elevation, a guide frame is inserted into the upper end of the lattice column, the guide frame is connected with the lattice column through a first bolt, and then the lattice column is lowered integrally until the contact hole bottom of the reinforcement cage is reached;
(8) Correcting the central positions and vertical postures of the guide frame and the lattice columns by using a positioning mechanism, and fixing the guide frame after adjustment is finished;
(9) Lowering a guide pipe and cleaning holes for the second time;
(10) Pouring underwater concrete;
(11) Backfilling gravel materials;
(12) And (5) dismantling the guide frame and the positioning mechanism.
The beneficial effects of the invention at least comprise:
1. the invention provides an auxiliary system for positioning and mounting a lattice column, which comprises a guide frame and a positioning mechanism, wherein the guide frame can be inserted into the lattice column in a nesting way and is detachably connected with the lattice column, and the guide frame comprises a positioning frame body and a plurality of first positioning blocks fixed on the outer side of the positioning frame body; the positioning mechanism is used for controlling the center deviation and the verticality of the lattice column by adjusting the center deviation and the verticality of the guide frame, the positioning mechanism comprises a rectangular frame with a hollow inside, four jacks arranged at the bottoms of four corners of the rectangular frame, and an adjusting mechanism used for adjusting the orifice size of an orifice through which the guide frame passes, the orifice is positioned in the frame body of the rectangular frame, the orifice size of the orifice is matched with the size of the positioning frame body, and a plurality of first positioning blocks are positioned on the rectangular frame and are abutted with the rectangular frame; like this, firstly pass the lattice post that is connected with the steel reinforcement cage and transfer the back of rectangle frame, rethread first bolt is connected the location framework of lattice post and leading truck, whole transfer, transfer to the target position after, the first locating piece of leading truck is located positioning mechanism, the centre position of lattice post is rectified through the position deviation and the straightness that hangs down of adjustment leading truck in the drill way position, after satisfying the requirement, fixed lattice post, through adopting this auxiliary system installation lattice post, the location degree of difficulty of super long empty stake lattice post has been reduced, positioning operation time has been shortened effectively, positioning effect is reliable and stable.
2. The positioning mechanism comprises a rectangular frame, four jacks arranged at the bottoms of four corners of the rectangular frame, and an adjusting mechanism for adjusting the size of an orifice through which the guide frame passes, wherein the perpendicularity of the lattice column can be adjusted through the four jacks, so that the lattice column is in a vertical hanging shape, and the perpendicularity and the horizontal position are ensured; the size of the orifice is regulated by the regulating mechanism so as to regulate the angle and the accurate position of the lattice column, and the regulating mechanism is applicable to the installation and the positioning of the lattice columns with various sizes.
3. The guide frame comprises a positioning frame body extending along the length direction of the lattice column body, a plurality of first positioning blocks and a plurality of limiting blocks, wherein the first positioning blocks and the limiting blocks are arranged on the outer side of the positioning frame body, first positioning grooves are formed in the first positioning blocks, limiting grooves are formed in the limiting blocks, and correspondingly, when the structure of the lattice column is changed, a plurality of positioning components corresponding to the first positioning blocks and the limiting blocks are arranged on the outer side of the lattice column body, the positioning components comprise connecting columns with threaded holes, when the lattice column is arranged, the positioning frame body is inserted into the lattice column body, the lower surfaces of the limiting blocks are all in butt joint with the top ends of the lattice column body, nuts of the first bolts are in butt joint with the first positioning blocks, and screws sequentially penetrate through the first positioning grooves and the limiting grooves to be inserted into the connecting columns and are in threaded connection with the connecting columns so as to detach and connect the lattice column and the guide frame; therefore, the positioning and the verticality adjustment of the lattice column can be completed by positioning and verticality adjustment of the guide frame at the orifice position, on one hand, the guide problem caused by non-uniform length and column top elevation of a hollow pile in the related technology can be solved, and on the other hand, after the lattice column is positioned and installed, the guide frame and the lattice column can be disconnected, so that the guide frame can be reused.
4. The positioning mechanism and the guide frame are designed in a modularized reusable way, so that the spreading cost can be reduced, the engineering investment can be reduced after popularization, and good economic benefits are achieved.
5. The positioning frame body is connected with the lattice column body by the first bolt, so that the positioning frame body is convenient to install and detach.
6. The limiting block is detachably connected with the first batten plate, and the limiting block can be installed on the first batten plate at different heights, so that the length of the positioning frame body inserted into the lattice column body can be changed, and the lattice columns with different lengths, the empty pile lengths and the column top elevations can be installed in a matching mode, and the limiting block has the advantage of being wide in application range.
In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
FIG. 1 is a schematic perspective view of a connection between a guide frame and a positioning mechanism in an auxiliary system according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of an auxiliary system according to an embodiment of the present invention, which is connected to a guide frame and a reinforcement cage.
Reference numerals illustrate:
Detailed Description
The embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be defined and covered in a number of different embodiments according to the claims.
Referring to fig. 1 and 2, the present invention provides an auxiliary system 100 for positioning and installing a lattice column, where the auxiliary system 100 is used for positioning and lowering the lattice column 400 flexibly connected to a reinforcement cage 500.
In this embodiment, the flexible connection between the reinforcement cage 500 and the lattice column 400 means that after the reinforcement cage 500 is connected to the lattice column 400, the positions of the reinforcement cage 500 and the lattice column 400 are not completely fixed, the lattice column 400 can also rotate with the central axis of the reinforcement cage 500 as the axis, and the angle between the reinforcement cage and the lattice column 400 is adjusted to control the installation deviation of the lattice column 400, and the lattice column 400 can be connected through a bearing.
The auxiliary system 100 comprises a positioning mechanism 10, a guide frame 20 and a first bolt 30 for connecting the guide frame 20 and the lattice column 400, wherein the positioning mechanism 10 is used for controlling displacement deviation of the installation of the lattice column 400, the guide frame 20 is used for being connected with the lattice column 400 in a nested mode, the perpendicularity of the lattice column 400 is conveniently controlled, the auxiliary system 100 provided by the invention is used for installing the lattice column 400, the auxiliary system has the advantage of good installation quality, the rotation angle is less than 3 degrees, the perpendicularity deviation is less than 1/400, the pile bottom and the pile top elevation are accurately controlled, the advantage of stable and reliable positioning effect is achieved, the positioning operation time is effectively shortened, and the positioning difficulty is reduced.
The positioning mechanism 10 is used to control the center deviation and verticality of the lattice column 400 by adjusting the center deviation and verticality of the guide frame 20.
The positioning mechanism 10 comprises a rectangular frame 11 with a hollow interior, four jacks 12 mounted at the bottoms of four corners of the rectangular frame 11, and an adjusting mechanism 13 for adjusting the aperture size of an aperture through which the guide frame 20 passes, wherein the aperture is positioned in the frame of the rectangular frame 11, and the aperture size of the aperture is matched with the size of the guide frame 20.
Preferably, the positioning mechanism 10 is of a modular design, and all the components are detachably connected, so that the assembly and the disassembly are convenient.
The rectangular frame 11 includes two first support rods 111 disposed opposite to each other, two second support rods 112 disposed opposite to each other and having two ends connected to the two first support rods 111, and the two first support rods 111 and the two second support rods 112 are connected in a staggered manner to form the rectangular frame 11.
In this embodiment, the rectangular frame 11 is square.
Preferably, the connection between the first support bar 111 and the second support bar 112 is a detachable connection, such as a bolt connection, so that the assembly and the disassembly are convenient.
The four jacks 12 are respectively arranged at the bottoms of the four corners of the rectangular frame 11 and are used for adjusting the perpendicularity of the lattice columns, so that the lattice columns are in a vertical hanging shape, and the perpendicularity and the horizontal position are ensured.
The adjusting mechanism 13 is used for adjusting the size of the orifice so as to adjust the angle and the accurate position of the lattice column, and can be suitable for the installation and the positioning of the lattice columns with various sizes.
The adjusting mechanism 13 includes two positioning rods 131 with two ends respectively connected with two sides of the rectangular frame 11 and parallel to a first symmetry axis of the rectangular frame 11, two adjusting members 132 located between the two positioning rods 131 and symmetrically arranged about a second symmetry axis of the rectangular frame 11, and four connecting bolts 133 for connecting the positioning rods 131 with the rectangular frame 11, wherein the first symmetry axis and the second symmetry axis are vertically arranged.
In this embodiment, the two positioning rods 131 are respectively disposed on two sides of the first symmetry axis of the rectangular frame 11, and the distance between the two positioning rods can be adjusted to adjust the size of the aperture in the Y direction, so as to match with lattice columns with different sizes.
In the present embodiment, when the lattice column 400 is installed, the two positioning rods 131 are symmetrically disposed about the first symmetry axis of the rectangular frame 11 to control the center deviation of the lattice column 400 within a reasonable range.
In this embodiment, the X direction shown in fig. 1 corresponds to two sides of the rectangular frame 11, and the Y direction shown in fig. 1 corresponds to two ends of the rectangular frame 11.
The symmetry axis of the rectangular frame 11 parallel to the X direction is a first symmetry axis; the symmetry axis of the rectangular frame 11 parallel to the Y is the second symmetry axis.
Preferably, the rectangular frame 11 further includes two long threaded holes 113 formed on each of the first support rods 111, the two long threaded holes 113 are symmetrically disposed about a first symmetry axis of the rectangular frame, and the extending directions of the two long threaded holes 113 are the same as the extending directions of the first support rods 111, each of the positioning rods 131 further includes round threaded holes at two ends thereof, and each of the connecting bolts 133 sequentially passes through the round threaded holes and the long threaded holes 131 to connect the positioning rods 131 with the first support rods 111.
The distance between the two positioning rods 131 is reduced by moving the positioning rods 131 along the long screw hole 113 in a direction approaching the adjusting member 132, and the distance between the two positioning rods 131 is increased by moving the positioning rods 131 along the long screw hole 113 in a direction separating from the adjusting member 132.
In this embodiment, the two positioning rods 131 are respectively abutted against two ends of the top of the guide frame 20.
Each adjusting member 132 includes an adjusting nut 1321 fixedly mounted on the rectangular frame 11, a push rod 1322 penetrating through the adjusting nut 1321 and in threaded connection with the adjusting nut 1321, and a limiting plate 1323 mounted on the end of the push rod 1322 and fixedly connected with the push rod 1322, where the push rod 1322 and the positioning rod 131 are arranged in parallel, and the two limiting plates 1323 are respectively abutted to two sides of the top of the guide frame 20.
By rotating the ejector rod 1322 clockwise or counterclockwise, the length of the ejector rod 1322 extending into the rectangular frame 11 can be changed to adjust the size of the aperture in the X direction.
In this embodiment, the adjusting nut 1321 is mounted on the second supporting rod 112.
The shape of the main body of the guide frame 20 is similar to that of the lattice column 400, and the main body is a column structure with a rectangular cross section, which is mainly different in that the size of the guide frame 20 is smaller than that of the lattice column 400, and the guide frame 20 can be inserted into the lattice column 400.
The guide frame 20 includes a positioning frame 21 extending along a length direction of the lattice column 400, and a plurality of first positioning blocks 22 and a plurality of limiting blocks 23 mounted on an outer side of the positioning frame 21, wherein the first positioning blocks 22 are located above the limiting blocks 23, the number of the first positioning blocks 22 is the same as that of the limiting blocks 23, and the first positioning blocks 22 are arranged in one-to-one correspondence with the limiting blocks 23.
It should be noted that, the arrangement of the plurality of first positioning blocks 22 and the plurality of limiting blocks 23 in one-to-one correspondence means that the positions of the first positioning blocks and the limiting blocks are arranged in one-to-one correspondence, and it can be understood that one limiting block 23 is correspondingly arranged below each limiting block 22.
The positioning frame 21 includes four first angle steels 211 arranged at intervals, and a plurality of first lacing plate groups 212, the four first angle steels 211 are arranged in a pairwise symmetrical manner to form a columnar structure with a rectangular cross section, the plurality of first lacing plate groups 212 are arranged at intervals along the length direction of the first angle steels 211, and each first lacing plate group 212 includes four first lacing plates 2121 for connecting two adjacent first angle steels.
In this embodiment, the first angle steel 211 is an L-shaped angle steel.
Preferably, a lifting hole 2111 is further formed at the upper end of each first angle steel 211, and the four lifting holes 2111 of the four first angle steels 211 are symmetrically arranged in pairs.
By providing the hanging hole 2111, it is convenient to use a crane to hang the guide frame 20 out after the guide frame 20 is separated from the lattice column 400.
In this embodiment, the first lacing plates 2121 have a rectangular structure, two ends of the first lacing plates 2121 are respectively connected to the outer side surfaces of the adjacent first angle steels 211, the plurality of first lacing plates 2121 located on the same side are distributed at intervals along the length direction of the first angle steels, and the central axes of the plurality of first lacing plates 2121 on the same side in the width direction are all located on the same straight line.
The widthwise central axis is a central axis parallel to a widthwise shorter length of the first plate 2121.
In this embodiment, the first plate 2121 is fixedly attached to the side of the first angle 111 by welding, and simultaneously fixedly connects the adjacent first angles 211 together.
In this embodiment, the number of the first positioning blocks 22 is four, the four first positioning blocks 22 are respectively mounted on the outer sides of the four first lacing plates 2121 in the uppermost first lacing plate group 212, the lattice column 400 is positioned and mounted on the outer sides of the four first lacing plates 2121, and two first positioning blocks 22 which are oppositely arranged along the Y direction are respectively located on the positioning rods 131 and are abutted against each other.
The first positioning block 22 includes a first positioning block body 221, and a first positioning groove 222 formed by recessing inward from the surface of the first positioning block body 221 away from the positioning frame 21, wherein the first positioning groove 222 is used for the first bolt 30 to pass through.
The first positioning block body 221 has a rectangular block structure.
In this embodiment, the first positioning groove 222 is a U-shaped groove, which penetrates the upper surface and the lower surface of the first positioning block 22, and the opening of the U-shape of the U faces to the side far away from the positioning frame 21.
The limiting block 23 is used for abutting against the upper end of the lattice column 400 so as to determine the relative position of the positioning frame 21 and the lattice column 400.
The number of the limiting blocks 23 is four, the four limiting blocks 23 are respectively arranged on the outer sides of four first lacing plates in the first lacing plate group, and the first lacing plate group is one of a plurality of first lacing plate groups between the uppermost first lacing plate group and the lowermost first lacing plate group. It can be understood that the four limiting blocks 23 may be installed on any one of the first panel sets between the uppermost first panel set and the lowermost first panel set according to actual requirements, for example, the second panel set or the third panel set from top to bottom.
The depth of the positioning frame 21 inserted into the lattice column 400 can be changed by adjusting the mounting position of the limiting block 23, so as to match the mounting of lattice columns with different column lengths, different empty pile lengths and different column top elevations, and the multiplexing range of the guide frame 10 is wider.
The stopper 23 may be fixedly mounted on the outer side of one of the first batten plates, and this solution does not affect the guide frame provided by the present invention for guiding and positioning, and does not affect the multiplexing of the guide frame, but is preferably used for a lattice column with a column length in a specific range when the guide frame is multiplexed.
In this embodiment, the four limiting blocks 23 are respectively mounted on the outer sides of the four first gusset plates of the fourth first gusset plate group 212 from top to bottom.
In this embodiment, the limiting block 23 includes a limiting block body 231, a limiting groove 232 formed by recessing inwards from the surface of the limiting block body 231 away from the positioning frame 21, and two through holes 233 penetrating through the limiting block body in the thickness direction of the limiting block body 231, wherein the limiting groove 232 is used for the first bolt 30 to penetrate through, and the limiting groove 232 on the same side and the first positioning groove 222 of the first positioning block 22 are opposite to each other, and the first bolt 30 penetrates through both of them at the same time, so that positioning is convenient.
In this embodiment, the cross section of the stopper body 231 is of an arc structure, so that the thickness of the middle of the stopper body 231 is greater than that of the two sides, and the second bolt for fixing the stopper 13 and the first plate 2121 is convenient to install.
In this embodiment, the limiting groove 232 is a U-shaped groove, which penetrates through the upper surface and the lower surface of the limiting block 23, and the opening of the U-shape faces to the side far away from the positioning frame 11.
Preferably, the stopper 23 is detachably connected to the first plate 2121.
More preferably, the stopper 23 is threaded with the first gusset plate 2121.
Specifically, two mounting holes 212A are formed in four first batten plates of each first batten plate group (target batten plate group) in the middle of the uppermost first batten plate group and the lowermost first batten plate group, the two mounting holes 212A are arranged in one-to-one correspondence with the two through holes 233, the guiding device further comprises a plurality of second bolts 24, and the second bolts 24 are sequentially inserted into the through holes 233 and the mounting holes 212A to connect the first batten plates 2121 with the limiting blocks 23 in a threaded manner.
In this embodiment, the number of the first bolts 30 is four, the four first bolts 30 are respectively mounted on four sides of the guide frame 20, and the first bolts 30 are long-rod bolts.
The lattice column 400 includes a lattice column body 40, and a plurality of positioning assemblies 50 mounted on the outer side of the lattice column body 40, wherein the plurality of positioning assemblies 50 are used for connecting with the guide frame 20.
The shape of the lattice column body 40 is the same as that of the positioning frame body 21, and the positioning frame body 21 has a rectangular column structure, and the size of the positioning frame body 21 is smaller than that of the lattice column body 40.
In this embodiment, the cross-sectional dimension of the lattice column body 40 is 550mm×550mm.
In this embodiment, the positioning frame 21 is inserted into the lattice column body 40 in a nested manner, so that the length of the lattice column can be extended, the positioning frame 21 is disposed at the hole, and the verticality of the positioning frame 21 can be adjusted at the hole, so that the verticality of the lattice column can be controlled.
The positioning frame body 21 is inserted into the lattice column body 40 in a nested manner, and it can be understood that the central axis of the lattice column body 40 and the central axis of the positioning frame body 21 are located on the same straight line, the transverse symmetry plane of the lattice column body 40 and the transverse symmetry plane of the positioning frame body 21 are located on the same plane, and the longitudinal symmetry plane of the lattice column body 40 and the longitudinal symmetry plane of the positioning frame body 21 are located on the same plane.
The lattice column body 40 includes four second angle steels 41 arranged at intervals, and a plurality of second batten plate groups 42, the four second angle steels 41 are arranged in a two-to-two symmetrical manner to form a column structure with a rectangular cross section, the plurality of second batten plate groups 42 are arranged at intervals along the length direction of the second angle steels 41, and each second batten plate group 42 includes four second batten plates 421 for connecting two adjacent second angle steels 41.
In this embodiment, the second angle 41 is an L-shaped angle.
In this embodiment, two ends of the second lacing plate 421 are respectively connected to the outer side surfaces of the adjacent second angle steel 41, the plurality of second lacing plates 421 located on the same side are distributed at intervals along the length direction of the second angle steel 41, and the central axes of the plurality of second lacing plates 421 on the same side in the width direction are all located on the same straight line.
The widthwise central axis is a central axis parallel to the widthwise shorter length of the second plate 421.
In this embodiment, the second fastening plate 421 is fixedly mounted on the side of the second angle 41 by welding, and simultaneously fixedly connects the adjacent second angle 41 together.
In this embodiment, when the positioning frame 21 is inserted into the lattice column body 40, the second fastening plate 421 and the first fastening plate 4121 on the same side are parallel to each other.
In this embodiment, the number of the positioning assemblies 50 is four, which is the same as the number of the first positioning blocks 22 and the limiting blocks 23, the four positioning assemblies 50 are in one-to-one correspondence with the four first positioning blocks 22, and the four positioning assemblies 50 are in one-to-one correspondence with the four limiting blocks 23, that is, four sides of the rectangular columnar structure are respectively provided with one positioning assembly 50, one first positioning block 22 and one limiting block 23.
The four positioning assemblies 50 are respectively mounted on the four second lacing plates 421 of the second lacing plate group 42 near the upper end of the second angle steel 41, i.e. one positioning assembly 50 is respectively mounted on each second lacing plate 421.
In other embodiments, the number of the positioning assemblies 50 may be two or three, and the number of the first positioning blocks 22 and the limiting blocks 23 may be two or three, so that the positioning effect is relatively worse than that of the four positioning assemblies 40, but the positioning can be performed.
The positioning assembly 50 includes a connecting post 51, and a second positioning block 52, wherein the connecting post 51 has an internal threaded hole and can be screwed with the first bolt 30.
In this embodiment, the second positioning block 52 is mounted at a middle position of the second fastening plate 421, and the connecting post 51 is mounted below the second positioning block 52.
In this embodiment, the second positioning block 52 includes a second positioning block body 521, and a second positioning groove 522 formed by recessing inward from the surface of the second positioning block body 521 away from the lattice column body 40, where the second positioning groove 522 is used for the first bolt 30 to pass through. The second positioning groove 522 and the limiting groove 231 on the same side are opposite to each other, the nut of the first bolt 30 abuts against the first positioning block 22, and the screw rod sequentially passes through the first positioning groove 221, the through hole of the positioning rod 131, the limiting groove 232, and the second positioning groove 522 are inserted into the connecting post 51 and are in threaded connection with the connecting post 51.
In this embodiment, the second positioning groove 522 is a U-shaped groove, which penetrates the upper surface and the lower surface of the second positioning block 52, and the opening of the U-shape of the U faces to the side far away from the lattice column body 40.
Preferably, the second positioning block 52 is detachably connected to the second fastening plate 421, so that the second positioning block 52 can be removed and recovered after the lattice column body is mounted.
More preferably, the second positioning block 52 is screwed to the second fastening plate 421 by providing holes for mounting threads in the second positioning block body 521 and the second fastening plate 421.
In this embodiment, the cross section of the second positioning block body 521 is of an arc structure, so that the thickness of the middle of the second positioning block body 521 is greater than that of the two sides, holes for installing threads are formed in the two sides, and bolts with shorter screws can be selected for convenient disassembly.
The invention also provides a construction method for installing the lattice column by the auxiliary system, which comprises the following steps:
step (1), leveling and compacting the ground of a site, and measuring and paying off;
step (2), paving a roadbed box or a steel plate, positioning hole forming equipment, and lowering a steel pile casing to finish the drilling construction of the upright post pile;
step (3), after drilling is completed, cleaning up mud, soil and the like around the drilling, and paying off according to the extension line of the midpoint of the side 4 of the lattice column;
step (4), installing a positioning mechanism at the orifice, and adjusting four jacks of the positioning mechanism to center the level bubble on the positioning mechanism;
hoisting and lowering the reinforcement cage, lowering the lattice column when the reinforcement cage is lowered to the orifice position, and enabling the lattice column to extend into the reinforcement cage for 3m;
step (6), after the lattice column is flexibly connected with the reinforcement cage, the lattice column is integrally lowered;
step (7), after the lattice column is lowered to the target elevation, inserting a guide frame at the upper end of the lattice column, connecting the guide frame with the lattice column by using a first bolt, and then integrally lowering the lattice column until the steel reinforcement cage contacts the bottom of the hole;
the target elevation herein is understood to be the position where the constructor is convenient to install the guide frame and connect the lattice column and the guide frame after the lattice column is lowered a certain distance.
Step (8), correcting the central positions and vertical postures of the guide frame and the lattice columns by using a positioning mechanism, and fixing the guide frame after adjustment is finished;
step (9), lowering the guide pipe and cleaning the hole for the second time;
step (10), pouring underwater concrete;
step (11), backfilling gravel materials;
and (12) dismantling the guide frame and the positioning mechanism.
By using the auxiliary system provided by the invention, the construction operation of 86 lattice columns is performed according to the construction method, and compared with the traditional positioning technology, the accurate positioning of the lattice columns has the advantages that:
1. the installation quality of the lattice column is obviously improved, and the concrete steps are as follows: the rotation angles are smaller than 3 degrees, the verticality deviation is smaller than 1/400, and the elevation of the pile bottom and the pile top is precisely controlled.
2. The positioning difficulty of the ultra-long hollow pile lattice column is reduced by introducing the positioning mechanism and the guide frame, the positioning operation time is effectively shortened, and the positioning effect is stable and reliable.
The foregoing is a further detailed description of the invention in connection with specific preferred embodiments, and is not intended to limit the practice of the invention to such description. It will be apparent to those skilled in the art that several simple deductions and substitutions can be made without departing from the spirit of the invention, and these are considered to be within the scope of the invention.
Claims (10)
1. An auxiliary system for lattice column positioning installation, the auxiliary system comprising:
the guide frame can be inserted into the lattice column in a nesting manner and is detachably connected with the lattice column, and comprises a positioning frame body extending along the length direction of the lattice column and connected with the lattice column, and a plurality of first positioning blocks fixed on the outer side of the positioning frame body, wherein the first positioning blocks are positioned at the same horizontal height and are mounted at the upper end of the positioning frame body;
the positioning mechanism is used for controlling the center deviation and the verticality of the lattice column by adjusting the center deviation and the verticality of the guide frame, and comprises a rectangular frame with hollow inside, four jacks arranged at the bottoms of four corners of the rectangular frame and an adjusting mechanism for adjusting the orifice size of an orifice through which the guide frame passes, wherein the orifice is positioned in the frame body of the rectangular frame, the orifice size of the orifice is matched with the size of the positioning frame body, and a plurality of first positioning blocks are positioned on the rectangular frame and are in butt joint with the rectangular frame.
2. The auxiliary system for positioning and mounting of lattice columns according to claim 1, wherein the adjusting mechanism comprises two positioning rods, two ends of each positioning rod are respectively connected with two sides of the rectangular frame and parallel to a first symmetry axis of the rectangular frame, the two positioning rods are respectively arranged on two sides of the first symmetry axis, the distance between the two positioning rods can be adjusted, and the two positioning rods are respectively abutted with two ends of the top of the positioning frame body.
3. The auxiliary system for positioning and mounting a lattice column according to claim 2, wherein the adjusting mechanism further comprises two adjusting members which are positioned between two positioning rods and symmetrically arranged about a second symmetry axis of the rectangular frame, the second symmetry axis is perpendicular to the first symmetry axis, each adjusting member comprises an adjusting nut fixedly mounted on the rectangular frame, a top rod penetrating through the adjusting nut and in threaded connection with the adjusting nut, and a limiting plate mounted at the tail end of the top rod and in fixed connection with the top rod, the top rod is parallel to the positioning rods, and the two limiting plates are respectively abutted to two sides of the top of the positioning frame.
4. The auxiliary system for positioning and mounting a lattice column according to claim 3, wherein the rectangular frame comprises two first support rods arranged oppositely, two second support rods with two ends connected with the two first support rods respectively and arranged oppositely, the two first support rods and the two second support rods are connected in a staggered manner to form the rectangular frame together, and two ends of the two positioning rods are connected with the two first support rods respectively.
5. The auxiliary system for positioning and mounting a lattice column according to claim 4, wherein the rectangular frame further comprises two long screw holes formed in each of the first support rods, the two long screw holes are symmetrically arranged about a first symmetry axis of the rectangular frame, the extending direction of the two long screw holes is the same as that of the first support rods, each positioning rod further comprises round screw holes at two ends of the positioning rod, and the adjusting mechanism further comprises four connecting bolts, each connecting bolt sequentially penetrates through the round screw holes and the long screw holes to connect the positioning rod with the first support rods.
6. The auxiliary system for positioning and mounting a lattice column according to claim 1, wherein the first positioning block comprises a first positioning block body part, a first positioning groove formed by recessing inwards from the surface of the first positioning block body part away from the positioning frame body, a through hole penetrating through the first positioning groove is formed in the position, opposite to the first positioning groove, of the first supporting rod, the auxiliary system further comprises a first bolt, a nut of the first bolt is abutted to the first positioning block, and a screw rod of the first bolt sequentially penetrates through the first positioning groove and the through hole to be connected with the lattice column, so that the guide frame, the positioning mechanism and the lattice column are connected.
7. The auxiliary system for positioning and mounting a lattice column according to claim 6, wherein the guide frame further comprises a plurality of limiting blocks mounted on the outer side of the positioning frame and located below the first positioning block, the limiting blocks and the first positioning blocks are arranged in one-to-one correspondence, each limiting block comprises a limiting block body portion and a limiting groove formed by inwards recessing the surface of the limiting block body portion away from the positioning frame body, the limiting groove is used for the first bolt to pass through, and when the lattice column is mounted, the lower surfaces of the limiting blocks are abutted against the lattice column.
8. The auxiliary system for positioning and mounting a lattice column according to claim 7, wherein the positioning frame body comprises four first angle steels arranged at intervals and a plurality of first lacing plate groups, the four first angle steels are arranged in a pairwise symmetrical mode to form a columnar structure with a rectangular cross section, the plurality of first lacing plate groups are arranged at intervals along the length direction of the first angle steels, each first lacing plate group comprises four first lacing plates for connecting two adjacent first angle steels, the number of the first positioning blocks is four, and the four first positioning blocks are respectively arranged on the outer sides of the four first lacing plates in the uppermost first lacing plate group.
9. The auxiliary system for positioning and mounting a lattice column according to claim 8, wherein the number of the stopper is four, and four of the stoppers are respectively mounted on the outer sides of four first gusset plates in a target first gusset plate group, which is one of a plurality of first gusset plate groups in the middle of the uppermost first gusset plate group and the lowermost first gusset plate group.
10. A method of constructing an auxiliary system according to any one of claims 1 to 9, comprising the steps of:
(1) Leveling and compacting the ground on site, and measuring and paying off;
(2) Paving a roadbed box or a steel plate, positioning a hole forming device, and lowering a steel pile casing to finish the drilling construction of the column pile;
(3) After the drilling is completed, cleaning up mud, soil and the like around the drilling, and paying off according to the extension line of the midpoint of the sides of the lattice column 4;
(4) Installing a positioning mechanism at the orifice, and adjusting four jacks of the positioning mechanism to center a level bubble on the positioning mechanism;
(5) Hoisting and lowering the reinforcement cage, lowering the lattice column when the reinforcement cage is lowered to the orifice position, and enabling the lattice column to extend into the reinforcement cage for 3m;
(6) After the lattice column is flexibly connected with the reinforcement cage, the lattice column is integrally lowered;
(7) After the lattice column is lowered to the target elevation, a guide frame is inserted into the upper end of the lattice column, the guide frame is connected with the lattice column through a first bolt, and then the lattice column is lowered integrally until the contact hole bottom of the reinforcement cage is reached;
(8) Correcting the central positions and vertical postures of the guide frame and the lattice columns by using a positioning mechanism, and fixing the guide frame after adjustment is finished;
(9) Lowering a guide pipe and cleaning holes for the second time;
(10) Pouring underwater concrete;
(11) Backfilling gravel materials;
(12) And (5) dismantling the guide frame and the positioning mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310480789.4A CN116537192A (en) | 2023-04-28 | 2023-04-28 | Auxiliary system for positioning and mounting lattice column and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310480789.4A CN116537192A (en) | 2023-04-28 | 2023-04-28 | Auxiliary system for positioning and mounting lattice column and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117513328A (en) * | 2023-12-29 | 2024-02-06 | 中铁建工集团有限公司 | Construction equipment applied to embedded lattice column constructed by reverse construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117513328A (en) * | 2023-12-29 | 2024-02-06 | 中铁建工集团有限公司 | Construction equipment applied to embedded lattice column constructed by reverse construction method |
| CN117513328B (en) * | 2023-12-29 | 2024-04-09 | 中铁建工集团有限公司 | Construction equipment applied to embedded lattice column constructed by reverse construction method |
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