CN109797753B - Upright column pile suitable for high rock surface field foundation pit and construction method of lattice column - Google Patents
Upright column pile suitable for high rock surface field foundation pit and construction method of lattice column Download PDFInfo
- Publication number
- CN109797753B CN109797753B CN201910180055.8A CN201910180055A CN109797753B CN 109797753 B CN109797753 B CN 109797753B CN 201910180055 A CN201910180055 A CN 201910180055A CN 109797753 B CN109797753 B CN 109797753B
- Authority
- CN
- China
- Prior art keywords
- column
- steel pipe
- pile
- pipe column
- lattice
- 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.)
- Active
Links
Images
Landscapes
- Foundations (AREA)
Abstract
The invention relates to the technical field of construction of a stand column pile and a lattice column of a foundation pit of a high rock face field, and discloses a construction method of a stand column pile and a lattice column suitable for the foundation pit of the high rock face field, which comprises a plurality of steel pipe columns and comprises the following steps: 1) drilling for multiple times by adopting a pneumatic down-the-hole hammer to form four pile holes, wherein the four pile holes are correspondingly arranged at four corners; 2) respectively inserting each steel pipe column into each pile hole; 3) grouting cement slurry into the steel pipe column; 4) pouring cement slurry into the pile holes to form a plurality of concrete piles; 5) excavation foundation ditch earth and stone side, install the batten board between the adjacent steel-pipe column, four batten boards form studded board group, and each studded board group is interval arrangement along the length direction of steel-pipe column, forms lattice column. The pneumatic down-the-hole hammer is used for drilling to form a plurality of pile holes, so that the hole forming difficulty in hard rock can be greatly reduced, the rock entering workload is reduced, the working efficiency is greatly improved, higher rigidity can be obtained, and the lateral deformation resistance of the member is improved.
Description
Technical Field
The invention relates to the technical field of construction of a vertical column pile and a lattice column of a foundation pit of a high rock face site, in particular to a construction method of the vertical column pile and the lattice column suitable for the foundation pit of the high rock face site.
Background
In the deep foundation pit supporting, lattice columns are mostly adopted as vertical supporting members for horizontal inner supports, and the lattice columns have the advantages of being fast in construction, low in manufacturing cost and the like.
At present, because lattice column is in the work progress, easily has less vertical displacement, generally adopts major diameter (generally being greater than 1000 mm) bored concrete pile as the basis of stand to improve the setting steadiness of lattice column, guarantee the support effect.
However, in the case of a foundation pit of hard rock or high rock surface, it is difficult to construct such a large-diameter stud pile, which is difficult to form a hole, expensive in construction, and long in construction period.
Disclosure of Invention
The invention aims to provide a column pile suitable for a foundation pit of a high rock surface field and a construction method of a lattice column, and aims to solve the problem that in the prior art, during lattice column construction, the hole forming difficulty of the column pile is high.
The invention is realized in this way, and is suitable for the construction method of the upright post pile and the lattice column of the foundation pit of the high rock surface field, which comprises a plurality of steel pipe columns, and the steps are as follows:
1) drilling for multiple times by adopting a pneumatic down-the-hole hammer to form four pile holes, wherein the four pile holes are correspondingly arranged at four corners;
2) respectively inserting each steel pipe column into each pile hole;
3) grouting cement slurry into the steel pipe column;
4) pouring cement slurry into the pile holes to form a plurality of concrete piles;
5) excavating foundation pit earthwork, installing batten plates between the adjacent steel pipe columns, forming batten plate groups by the four batten plates, and arranging the batten plate groups at intervals along the length direction of the steel pipe columns to form lattice columns.
Further, the cross section of the steel pipe column is arranged in a box shape, the steel pipe column is provided with two outer end faces arranged outwards, the two outer end faces of the steel pipe column are perpendicularly arranged, one outer end face of the steel pipe column is flush with the adjacent outer end face of the steel pipe column, the other outer end face of the steel pipe column is flush with the adjacent outer end face of the steel pipe column, and the two ends of the gusset plate are respectively attached and fixed to the outer end faces of the two adjacent steel pipe columns along the width direction of the steel pipe columns.
Further, the gusset plate covers an outer end surface of the steel pipe column.
Further, the adjacent batten plates are vertically arranged.
Further, the four batten plates are arranged in a surrounding manner to form the batten plate group.
Further, along the width direction of the steel pipe column, the steel pipe column has a width value, and the width value is larger than the radius of the pile hole.
Furthermore, the cross section of the steel pipe column is square and is provided with four corners, and the pile hole is internally tangent to the four corners of the steel pipe column.
Further, the batten plate group comprises a bottom batten plate group close to the concrete pile, the concrete pile is provided with a top end face facing the bottom batten plate group, a downward sunken embedded groove is formed in the top end face of the concrete pile, the bottom batten plate group comprises four batten plates, and the lower portions of the two ends of each batten plate are respectively embedded into the adjacent embedded grooves of the concrete pile.
Furthermore, the four batten plates are fixed in a pairwise opposite mode and are arranged in a surrounding mode.
Further, constructing a support beam on the lattice column, wherein the support beam and the lattice column are vertically arranged; one end of the supporting beam is fixedly arranged, and the other end of the supporting beam and the latticed column are fixedly arranged.
Compared with the prior art, the construction method of the upright post pile and the lattice post suitable for the foundation pit of the high rock surface site, provided by the invention, has the advantages that a plurality of pile holes are formed in a building site with hard rock and high rock surface by drilling with the pneumatic down-the-hole hammer, the hole forming difficulty in the hard rock can be greatly reduced, the rock entering workload is reduced, and the working efficiency is greatly improved; slurry is poured into the pile holes to form concrete piles with small diameters, and the four concrete piles are arranged in four corners to enhance the integral supporting force; a plurality of steel pipe columns filled with cement slurry and small-diameter concrete piles are adopted, and a plurality of batten plates are combined to form the lattice column, so that the bearing capacity of the lattice column is guaranteed, high rigidity can be achieved, and the lateral deformation resistance of the component is improved.
Drawings
FIG. 1 is a schematic structural front view of a column pile and a lattice column construction method suitable for a foundation pit of a high rock surface field, provided by the invention;
FIG. 2 is a schematic structural plan view of a column pile and a lattice column construction method suitable for a high rock surface site foundation pit provided by the invention;
fig. 3 is a schematic structural diagram of a column pile and a lattice column construction method suitable for a high rock surface site foundation pit provided by the invention.
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 patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to the drawings, there is shown a preferred embodiment of the present invention.
The invention provides a column pile suitable for a foundation pit of a high rock surface field and a construction method of a lattice column, which are used for solving the problem that the hole forming difficulty of the column pile is high during lattice column construction.
The construction method of the upright post pile and the lattice column suitable for the foundation pit of the high rock surface field comprises a plurality of steel pipe columns 20 and comprises the following steps:
1) drilling for multiple times by adopting a pneumatic down-the-hole hammer to form four pile holes 11, wherein the four pile holes 11 are correspondingly arranged at four corners;
2) respectively inserting each steel pipe column 20 into each pile hole 11;
3) grouting cement slurry into the steel pipe column 20;
4) grouting cement slurry into the pile holes 11 to form a plurality of concrete piles 10;
5) excavating foundation pit earthwork, installing batten plates 30 between the adjacent steel pipe columns 20, forming batten plate groups by the batten plates 30, and arranging the batten plate groups at intervals along the length direction of the steel pipe columns 20 to form lattice columns.
According to the construction method of the upright post pile and the lattice post suitable for the foundation pit of the high rock surface field, the plurality of pile holes 11 are formed in the building field of hard rock and the high rock surface by drilling with the pneumatic down-the-hole hammer, so that the hole forming difficulty in the hard rock can be greatly reduced, the rock entering workload is reduced, and the working efficiency is greatly improved; slurry is poured into the pile holes 11 to form concrete piles 10 with small diameters, and the four concrete piles 10 are arranged in four corners to enhance the integral supporting force; a plurality of steel pipe columns 20 filled with cement slurry inside and a small-diameter concrete pile 10 are adopted, and a plurality of batten plates 30 are combined to form the lattice column, so that the bearing capacity of the lattice column is guaranteed, high rigidity can be achieved, and the lateral deformation resistance of the lattice column is improved.
The cross section of the steel pipe column 20 is in box-shaped arrangement, the steel pipe column 20 is provided with two outer end faces 21 which are arranged outwards, the outer end faces 21 of the two steel pipe columns 20 are arranged vertically, one outer end face 21 of each steel pipe column 20 is arranged in parallel with the outer end face 21 of the adjacent steel pipe column 20, and the other outer end face 21 of each steel pipe column 20 is arranged in parallel with the outer end face 21 of the other adjacent steel pipe column 20; along the width direction of the steel pipe columns 20, the two ends of the gusset plate 30 are respectively attached and fixed to the outer end surfaces 21 of two adjacent steel pipe columns 20; this contributes to enhancing the supporting force of the steel pipe column 20 and improving the bearing capacity of the lattice column to be finally formed.
The gusset plate 30 covers the outer end surface 21 of the steel pipe column 20, and increases the contact area between the gusset plate 30 and the steel pipe column 20, thereby enhancing the relative stability between the gusset plate 30 and the steel pipe column 20.
The adjacent batten plates 30 are vertically arranged, so that the adjacent batten plates 30 are matched conveniently, the connection stability of the batten plate groups and the steel pipe column 20 is enhanced, and the bearing capacity of the lattice column is enhanced.
The four batten plates 30 are arranged in a surrounding manner to form a batten group, so that the connection stability of the batten group and the steel pipe column 20 is enhanced, and the bearing capacity of the lattice column is enhanced.
Along the width direction of steel-pipe column 20, steel-pipe column 20 has the width value, and the width value is greater than the radius in stake hole 11, guarantees that steel-pipe column 20 has sufficient holding power, and the steel-pipe column 20 of being convenient for and the bored concrete pile cooperation guarantee the bearing capacity to the lattice column.
The section of the steel pipe column 20 is square and has four corners, and the pile hole 11 is internally tangent to the four corners of the steel pipe column 20; the steel pipe column 20 is convenient to set, and the situation that when the steel pipe column 20 is set, the deviation is too large, and the matching support of each steel pipe column 20 is influenced is effectively reduced.
The batten plate group comprises a bottom batten plate group close to the concrete pile 10, the concrete pile 10 is provided with a top end surface facing the bottom batten plate group, the top end surface of the concrete pile 10 is provided with downwards-sunken embedded grooves, the bottom batten plate group comprises four batten plates 30, and the lower parts of two ends of each batten plate 30 are respectively embedded into the embedded grooves of the adjacent concrete piles 10; the concrete piles 10 are integrated by the gusset plate 30, thereby increasing the supporting force of the concrete piles 10.
The four gusset plates 30 are fixed in pairs and are arranged in a surrounding manner; thus, the four gusset plates 30 are integrally combined to enhance the supporting force of each concrete pile 10.
Constructing a support beam 40 on the lattice column, wherein the support beam 40 and the lattice column are vertically arranged; one end of the supporting beam 40 is fixedly arranged, and the other end of the supporting beam 40 is fixedly arranged with the lattice column; under the action of the support beam 40, the bearing capacity and the supporting capacity of the lattice column are enhanced.
The diameter of pile hole 11 is 200mm, and the width value scope of steel-pipe column 20 is 130mm, in being convenient for steel-pipe column 20 interpolation pile hole 11, and be convenient for steel-pipe column 20 to form the bored concrete pile.
The batten plate 30 is 530mm in length, 300mm in width and 10mm in chamfer angle; the distance between the patch plate groups is 700 mm; the lattice column is guaranteed to have enough bearing capacity and high rigidity, and lateral deformation resistance of the lattice column is improved.
The joint of the two outer end surfaces 21 of the steel pipe column 20 protrudes outwards to form an outward extending part, and the outward extending part extends along the length direction of the steel pipe column 20; the outer extension part is provided with two reinforcing grooves which are oppositely arranged, the reinforcing grooves extend along the length direction of the steel pipe column 20, and the adjacent batten plates 30 are respectively embedded into the two reinforcing grooves to form a surrounding shape of each batten plate 30; thus, the setting stability of the gusset plate 30 is enhanced by the reinforcing groove.
The portion of extending has the outer terminal surface towards outside, and the outer end of portion of extending personally submits the arc and arranges, and the tip of batten plate 30 is the arc and arranges, and like this, batten plate 30 is better with the portion of extending cooperation effect, strengthens batten plate 30's the steadiness that sets up.
After inserting the pile hole 11 in the steel-pipe column 20, be provided with location structure in the periphery of steel-pipe column 20 for center location is carried out to steel-pipe column 20, thereby guarantees that setting up of steel-pipe column 20 is accurate and guarantee that steel-pipe column 20 has sufficient holding power.
The positioning structure comprises a sleeving rod and two touch rods, the touch rods and the sleeving rod are fixedly arranged, the touch rods extend downwards, the sleeving rod sleeves adjacent three end faces of the steel pipe column 20, the two touch rods extend in the direction of the end faces deviating from the two opposite arrangements, and the touch rods touch the pile holes 11; thereby positioning the steel pipe column 20.
In addition, the sheathing rod is used as a welding spot, so that the batten plate 30 is welded and fixed conveniently, and the batten plate 30 is arranged conveniently.
The steel pipe column 20 comprises a bottom column section 23 embedded in the pile hole 11, the bottom column section 23 is hollow and provided with an inner space 22, the bottom column section 23 is formed by enclosing column walls, a plurality of communication holes 24 are formed in the column walls, and the inner space 22 of the bottom column section 23 is communicated with the pile hole 11 through the communication holes 24; in this way, when the steel pipe column 20 is poured and the pile hole 11 is poured, the steel pipe column 20 and the concrete pile 10 are integrated, and the overall bearing capacity is increased.
When the steel pipe column 20 is grouted with cement paste, the cement paste fills the communication holes 24, and after solidification, a communication column is formed, and the steel pipe column 20 and the concrete pile 10 are integrated through the communication column, so that the overall bearing capacity is higher.
The communication column is arranged horizontally, the whole dead weight is enhanced, and the mutual friction force between the steel pipe column 20 and the concrete pile 10 is enhanced, so that the whole bearing capacity is enhanced.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The construction method of the upright post pile and the lattice post suitable for the foundation pit of the high rock surface field is characterized by comprising a plurality of steel pipe posts and comprises the following steps:
1) drilling for multiple times by adopting a pneumatic down-the-hole hammer to form four pile holes, wherein the four pile holes are correspondingly arranged at four corners;
2) respectively inserting each steel pipe column into each pile hole;
3) grouting cement slurry into the steel pipe column; the steel pipe column comprises a bottom column section embedded into the pile hole, the bottom column section is arranged in a hollow mode and is provided with an internal space, the bottom column section is formed by enclosing column walls, a plurality of communication holes are formed in the column walls, and the internal space of the bottom column section is communicated with the pile hole through the communication holes;
4) pouring cement slurry into the pile holes to form a plurality of concrete piles;
5) the method comprises the following steps of excavating a foundation pit earth-rock square, wherein the steel pipe column is provided with two outer end faces which are arranged outwards, the outer end faces of the two steel pipe columns are arranged vertically, one outer end face of each steel pipe column is arranged in parallel with the outer end face of the adjacent steel pipe column, the other outer end face of each steel pipe column is arranged in parallel with the outer end face of the adjacent steel pipe column, the cross section of each steel pipe column is square and is provided with four corners, and the pile holes are arranged in an inscribed mode with the four corners of the steel pipe column; batten plates are arranged between every two adjacent steel pipe columns, the four batten plates form batten plate groups, and the batten plate groups are arranged at intervals along the length direction of the steel pipe columns to form a lattice column; the batten plate group comprises a bottom batten plate group close to the concrete pile, the concrete pile is provided with a top end surface facing the bottom batten plate group, a downward sunken embedded groove is formed in the top end surface of the concrete pile, and the lower parts of two ends of the bottom batten plate group are respectively embedded into the embedded grooves of the adjacent concrete piles; constructing a support beam on the lattice column, wherein the support beam and the lattice column are vertically arranged; one end of the supporting beam is fixedly arranged, and the other end of the supporting beam is fixedly arranged with the latticed column; the periphery of steel-pipe column is provided with location structure, location structure establishes pole and two conflict poles including the cover, the conflict pole with the cover is established the pole and is fixed the arranging, just the conflict pole extends down to arrange, the adjacent three terminal surface of steel-pipe column is established to the pole cover is established to the cover, two the conflict pole extends along the terminal surface direction that deviates from two mutual dispositions and arranges, just the conflict pole is contradicted the stake hole.
2. The method for constructing a vertical column pile and a lattice column suitable for a foundation pit of a high rock surface field according to claim 1, wherein the two ends of the gusset plate are respectively attached and fixed to the outer end surfaces of two adjacent steel pipe columns in the width direction of the steel pipe columns.
3. The method for constructing a stud pile and a lattice column for a foundation pit in a high rock face area according to claim 2, wherein the gusset plate covers an outer end face of the steel pipe column.
4. The method for constructing a post pile and a lattice column for a foundation pit in a high rock face according to any one of claims 1 to 3, wherein adjacent gusset plates are arranged vertically.
5. The method for constructing a post pile and a lattice column for a foundation pit of a high rock face area according to any one of claims 1 to 3, wherein four said gusset plates are arranged in a surrounding manner to form said gusset plate group.
6. The method for constructing a post pile and a lattice column for a foundation pit in a high rock face area according to any one of claims 1 to 3, wherein the steel pipe column has a width in a width direction of the steel pipe column, and the width is greater than a radius of the pile hole.
7. The method for constructing a vertical column pile and a lattice column suitable for a foundation pit of a high rock face ground as claimed in claim 1, wherein the four gusset plates are fixed in pairs and in a surrounding arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180055.8A CN109797753B (en) | 2019-03-11 | 2019-03-11 | Upright column pile suitable for high rock surface field foundation pit and construction method of lattice column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180055.8A CN109797753B (en) | 2019-03-11 | 2019-03-11 | Upright column pile suitable for high rock surface field foundation pit and construction method of lattice column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109797753A CN109797753A (en) | 2019-05-24 |
| CN109797753B true CN109797753B (en) | 2021-05-11 |
Family
ID=66562630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910180055.8A Active CN109797753B (en) | 2019-03-11 | 2019-03-11 | Upright column pile suitable for high rock surface field foundation pit and construction method of lattice column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109797753B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000531A (en) * | 2021-11-02 | 2022-02-01 | 上海建工一建集团有限公司 | Tool and method for preventing deviation of upright column pile and lattice column of high-pile bearing platform tower crane foundation |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011132689A (en) * | 2009-12-22 | 2011-07-07 | Shimizu Corp | Structure of earth retaining wall serving also as footing and construction method of the same |
| CN204898717U (en) * | 2015-08-18 | 2015-12-23 | 中铁第一勘察设计院集团有限公司 | Shaft major structure of built -in lattice stand |
| CN106545008A (en) * | 2015-09-17 | 2017-03-29 | 江苏远卓地下工程技术有限公司 | A kind of cast-in-situ bored pile pile making method |
| CN105239594B (en) * | 2015-10-30 | 2017-09-29 | 江苏中大建设集团有限公司 | Pile for prestressed pipe column |
| CN205116202U (en) * | 2015-10-30 | 2016-03-30 | 江苏中大建设集团有限公司 | Stake of prestressing force side and integrated stand of steel lattice column |
| CN205348192U (en) * | 2015-12-24 | 2016-06-29 | 广东省基础工程集团有限公司 | Shoring of trench lattice formula stand structure |
-
2019
- 2019-03-11 CN CN201910180055.8A patent/CN109797753B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109797753A (en) | 2019-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5020357B2 (en) | Foundation construction method of tower structure and its foundation structure | |
| KR101674827B1 (en) | Underwater concrete wall using precast wall panel and method of constructing the same | |
| JP4942230B1 (en) | Submersible method and equipment for submerged method | |
| CN109024662A (en) | Method of the anchor pile underpinning without basement building underground space increasing layer | |
| CN109183812B (en) | Construction method of combined deep foundation pit supporting structure | |
| CN106245927A (en) | A kind of frame structure building underground that is applicable to increases method and the building of layer | |
| CN103827396A (en) | Steel slit dam | |
| CN109797753B (en) | Upright column pile suitable for high rock surface field foundation pit and construction method of lattice column | |
| CN205875193U (en) | Assembled stake integral structure | |
| JP5259510B2 (en) | Retaining wall and its construction method | |
| KR101187170B1 (en) | Application of under pinning method in remodeling | |
| CN102493439A (en) | Building fundamental pile constructional element | |
| CN210031836U (en) | Construction structure of upright post pile and lattice column suitable for high rock face field foundation pit | |
| CN215715415U (en) | Anti-sliding pile convenient for reinforcing side slope | |
| KR101253841B1 (en) | Vertically Inserting Column into the Eccentrically Bored Hole ＆ the Method Thereof | |
| CN210946864U (en) | Landscape structure foundation for soft stratum | |
| CN109680978B (en) | Basement storey-adding underpinning construction method | |
| CN210507458U (en) | Vertical anchor supporting system that draws of foundation ditch | |
| KR102195496B1 (en) | Pile for earth self-retaining wall using cast in place concrete pile with double I beam | |
| CN202170513U (en) | No undergoing force slab prestressed high strength concrete pipe pile base | |
| JP4030723B2 (en) | Foundation using foundation pole pile and method for forming foundation pile | |
| KR20200029075A (en) | Pile for Earth self-retaining wall using double I beam | |
| CN212427117U (en) | Foundation ditch stagnant water supporting construction | |
| CN218952197U (en) | Foundation pit concrete support and steel upright post connection structure | |
| CN217678551U (en) | Upper bridge and lower tunnel combined construction structure |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |