CN113089683A - Inclined pile supporting structure and construction method - Google Patents
Inclined pile supporting structure and construction method Download PDFInfo
- Publication number
- CN113089683A CN113089683A CN202110313474.1A CN202110313474A CN113089683A CN 113089683 A CN113089683 A CN 113089683A CN 202110313474 A CN202110313474 A CN 202110313474A CN 113089683 A CN113089683 A CN 113089683A
- Authority
- CN
- China
- Prior art keywords
- pile
- cement
- column
- soil
- batter
- 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
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
Abstract
The invention discloses an inclined pile supporting structure and a construction method, and aims to overcome the defects of high cost, long construction period and poor stress stability of the conventional foundation pit supporting structure. The invention comprises an inclined pile column, a fender pile, a capping beam and a cement-soil pile arranged underground, wherein the capping beam is rigidly connected to the fender pile, the inclined pile column is obliquely arranged, the lower end of the inclined pile column is embedded into the cement-soil pile, and the upper end of the inclined pile column is anchored into the capping beam; the cement soil pile is obliquely arranged along the length direction of the inclined pile column. The inclined pile supporting structure has the advantages of less material consumption, cost saving, shortened construction period, stable and reliable stress, safety and high efficiency.
Description
Technical Field
The invention relates to a foundation pit supporting technology, in particular to an inclined pile supporting structure and a construction method.
Background
There are more supporting construction forms in the excavation supporting engineering field at present, often use a fender formula structure as main excavation supporting system under the limited condition in foundation ditch boundary place, roughly can divide into row pile, underground continuous wall, stock, interior support and the combination of each structure and strut the form, each supporting construction shows its respective advantage and shortcoming and suitability in the application: the row pile support has better applicability and mature technology, but the deformation control capability of a pure cantilever structure is poorer; the underground continuous wall has good supporting effect, but has relatively high manufacturing cost and high construction requirement; the anchor rod support has lower manufacturing cost and simple and convenient construction, but the construction quality is difficult to control and is easy to exceed the red line; the inner support system can be divided into a horizontal inner support system and a vertical inclined support system, the horizontal inner support system can effectively control the deformation of the foundation pit, but the horizontal inner support system has poor economy in large-area foundation pit engineering, the manufacturing cost of the vertical inclined support system is controllable, the applicability is strong, but the traditional inclined throwing support has small rigidity, difficult excavation and long construction period. Therefore, the existing supporting structure needs to be improved, and a safer, more economical and more efficient foundation pit supporting method is provided.
Disclosure of Invention
In order to overcome the defects, the invention provides the inclined pile supporting structure and the construction method, the material consumption is less, the cost is saved, the construction period is shortened, the stress is stable and reliable, and the safety and the high efficiency are realized.
In order to solve the technical problems, the invention adopts the following technical scheme: an inclined pile supporting structure comprises an inclined pile column, a fender pile, a top pressing beam and a cement-soil pile arranged underground, wherein the top pressing beam is rigidly connected to the fender pile, the inclined pile column is obliquely arranged, the lower end of the inclined pile column is embedded into the cement-soil pile, and the upper end of the inclined pile column is anchored into the top pressing beam; the cement soil pile is obliquely arranged along the length direction of the inclined pile column.
The inclined pile column is obliquely arranged between the cement soil pile and the capping beam, and plays a good role in supporting the fender pile. In the application of large-area foundation pit engineering, a plurality of inclined pile columns are arranged at intervals along the periphery of the foundation pit, so that the consumption of materials is less, the cost is saved, and the construction period is shortened. Compared with an anchor rod, the problem that a supporting structure is over red is solved, a cement-soil pile is directly constructed underground, the influence of soil layer conditions is small, the stress is clear, and the cement-soil pile is stable and reliable. Compared with a vertical diagonal bracing system, the method has the advantages that soil does not need to be left in the pit, a partial bottom plate does not need to be poured firstly, a bracket of the bottom plate is constructed to provide counter force, the bottom of the pit can be directly excavated, the construction period is short, and the construction is simple and convenient. Can change holistic length and rigidity through the specification of adjustment batter pile, satisfy the excavation supporting requirement of different degree of depth, different soil layers, different load conditions, adaptability is stronger, has better application effect. The inclined pile supporting structure has the advantages of less material consumption, cost saving, shortened construction period, stable and reliable stress, safety and high efficiency.
Preferably, the inclined pile column is a steel lattice column. The steel lattice column has good structural strength and saves materials.
Preferably, the cement-soil pile comprises an anchoring section and a reinforcing section, the reinforcing section is arranged below the anchoring section, and the lower end of the inclined pile column is embedded into the anchoring section. The embedding of batter pile post has been made things convenient for to the anchor section, consolidates the section and is favorable to guaranteeing the support intensity of soil cement stake to the batter pile post.
Preferably, the length of the anchoring section is not less than 4 meters, and the length of the reinforcing section is not less than 3 meters. The length setting of anchor section and reinforcing section is reasonable, and the embedding of the oblique stake of being convenient for is favorable to improving the support intensity to the oblique stake lower extreme.
Preferably, the outer wall of the lower part of the inclined pile column is rigidly connected with a plurality of studs, and the studs are arranged in the cement soil pile. The arrangement of the stud is beneficial to improving the bonding strength of the inclined pile column and the cement-soil pile.
Preferably, the lower end of the inclined pile column is connected with an end plate, and the edge of the end plate extends outwards to form the inclined pile column. The end plate is beneficial to increasing the supporting area and improving the bearing capacity.
Preferably, a plurality of shear steel bars are arranged on one side, close to the inclined pile column, in the capping beam. The shear-resistant steel bar is beneficial to improving the shear resistance of the joint of the upper end of the inclined pile column and the capping beam.
Preferably, a lifting pushing column is installed at the lower position in the inclined pile column, a pushing bolt is installed above the pushing column in the inclined pile column, the end of the pushing bolt abuts against the pushing column, a plurality of gears are rotatably installed on the side wall of the inclined pile column, a supporting plate is connected to the gears, an abutting plate is arranged above the gears on the outer wall of the inclined pile column, a rack is arranged on the outer wall of the pushing column, the gears and the rack are in meshed transmission, the pushing bolt rotates to drive the pushing column to move downwards, and the rack on the pushing column drives the gears to rotate to enable the supporting plate to rotate upwards and abut against the abutting plate.
Thereby the oblique stake is installed and is rotated the promotion bolt and promote the post and move down after targetting in place, promotes rack on the post and drives gear revolve, and the fagging upwards rotates and the butt is on butt board, has improved the support area greatly to improve the bearing capacity of whole oblique stake, make oblique stake atress reliable and stable, safe high-efficient.
A method for constructing an inclined pile support structure comprises the following steps: firstly, constructing a fender post; secondly, drilling an inclined hole in the foundation pit; thirdly, constructing a cement-soil pile and an empty stirring section in the inclined hole, wherein the empty stirring section is arranged above the cement-soil pile; fourthly, before the cement-soil pile and the empty stirring section are condensed, embedding the lower end of the inclined pile column into the cement-soil pile to a designed depth, and ensuring that the inclination angle of the inclined pile column is the same as the inclination angle of the cement-soil pile; and fifthly, constructing a capping beam at the upper end of the fender pile, and anchoring the upper end of the inclined pile column into the capping beam.
A method for constructing an inclined pile support structure comprises the following steps: firstly, constructing a fender post; secondly, drilling an inclined hole in the foundation pit; thirdly, constructing a cement-soil pile and an empty stirring section in the inclined hole, wherein the empty stirring section is arranged above the cement-soil pile; fourthly, before the cement-soil pile and the empty stirring section are condensed, embedding the lower end of the inclined pile column into the cement-soil pile to a designed depth, ensuring that the inclination angle of the inclined pile column is the same as that of the cement-soil pile, rotating a pushing bolt after the inclined pile column is installed in place so as to push the pushing column to move downwards, driving a rack on the pushing column to drive a gear to rotate, and enabling the supporting plate to rotate upwards and abut against the abutting plate; and fifthly, constructing a capping beam at the upper end of the fender pile, and anchoring the upper end of the inclined pile column into the capping beam.
Compared with the prior art, the invention has the beneficial effects that: the inclined pile supporting structure is small in material consumption, beneficial to saving cost and shortening construction period, stable and reliable in stress, safe and efficient.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
fig. 2 is a schematic view illustrating the connection of the batter post according to the present invention with a soil-cement pile;
fig. 3 is a top view of a single oblique pile of embodiment 1 of the present invention;
fig. 4 is a top view of a double inclined pile according to embodiment 1 of the present invention;
FIG. 5 is a top view of embodiment 2 of the present invention;
FIG. 6 is an enlarged partial schematic view of FIG. 5 of the present invention;
in the figure: 1. inclined pile column, 2, fender pile, 3, capping beam, 4, cement soil pile, 5, angle steel, 6, batten plate, 7, stud, 8, end plate, 9, pushing column, 10, perforation, 11, locating sleeve, 12, pushing bolt, 13, swivel nut, 14, locating disc, 15, steel ball, 16, locating groove, 17, locating ring, 18, gear, 19, bracing plate, 20, butt plate, 21, rack, 22, water stop plate, 23, bottom plate cushion layer, 24, bottom plate, 25, bottom plate force transmission belt, 26, basement outer wall, 27, floor slab, 28 and floor slab force transmission belt.
Detailed Description
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
example 1: an inclined pile supporting structure (see attached figures 1 to 3) comprises an inclined pile column 1, a fender pile 2, a capping beam 3 and a cement-soil pile 4 arranged underground, wherein the capping beam is rigidly connected to the fender pile, the inclined pile column is obliquely arranged, the lower end of the inclined pile column is embedded into the cement-soil pile, and the upper end of the inclined pile column is anchored into the capping beam; the cement soil pile is obliquely arranged along the length direction of the inclined pile column. The inclined pile column forms an inclined angle of 45 degrees with the horizontal plane. The inclined pile column adopts a steel lattice column, the cross section of the inclined pile column is square, angle steel 5 is arranged at the corner of the inclined pile column, and gusset plates 6 are welded between adjacent angle steel.
The cement soil pile comprises an anchoring section and a reinforcing section, wherein the reinforcing section is arranged below the anchoring section, and the lower end of the inclined pile column is embedded into the anchoring section. The length of the anchoring section is not less than 4 meters, and the length of the reinforcing section is not less than 3 meters. The outer wall of the lower part of the inclined pile column is rigidly connected with a plurality of studs 7, and the studs are arranged in the cement soil pile. The lower end of the inclined pile column is connected with an end plate 8, and the edge of the end plate extends outwards to form the inclined pile column. And a plurality of shear-resistant steel bars are arranged in the coping near one side of the inclined pile column, or studs are welded in the range of anchoring the upper end of the inclined pile column into the coping. The length of the upper end of the inclined pile column anchored into the capping beam is not less than 0.4 m.
When batter post length is greater than 10 meters, set up the shaped steel stand in the mid-span position, the batter post passes through the crossbeam welding with the shaped steel stand, improves the overall stability of batter post. When the pile is applied to a deep foundation pit, the load is large, two inclined pile columns can be connected and spliced into a group through connecting angle steel, and then the inclined pile columns are embedded into cement soil piles (see attached drawing 4). Or the plane space between two adjacent oblique pile columns is shortened so as to improve the bearing capacity.
A method for constructing an inclined pile support structure comprises the following steps: firstly, constructing a fender post; secondly, drilling an inclined hole in the foundation pit; thirdly, constructing a cement-soil pile and an empty stirring section in the inclined hole, wherein the empty stirring section is arranged above the cement-soil pile, and the final strength of the cement-soil pile is not lower than 4 MPa; fourthly, before the cement-soil pile and the empty stirring section are condensed, embedding the lower end of the inclined pile column into the cement-soil pile to a designed depth, and ensuring that the inclination angle of the inclined pile column is the same as the inclination angle of the cement-soil pile; and fifthly, constructing a capping beam at the upper end of the fender pile, and anchoring the upper end of the inclined pile column into the capping beam to ensure that the fender pile and the inclined pile column are rigidly connected through the capping beam.
Excavation is carried out to whole foundation ditch earthwork after strutting and accomplishing, and the in-process chisel of excavation stirs the section with the sky that exposes on the oblique stake, accomplishes the earthwork excavation back of whole foundation ditch, connects sealing plate 22 on the oblique stake, and sealing plate is close to the foundation ditch bottom, then constructs basement structures such as bottom plate bed course 23, bottom plate 24, bottom plate biography power area 25, basement outer wall 26, floor 27, floor biography power area 28 and trades at the foundation ditch bottom in proper order and props the measure. And finally, cutting off the inclined pile column above the bottom plate surface, backfilling the earthwork of the fertilizer groove, and finishing the construction of the basement structure.
Example 2: a batter pile supporting structure (see attached figures 5 and 6) is similar to that in embodiment 1, and mainly different points are that a liftable pushing column 9 is installed at the lower portion in a batter pile in the embodiment, the cross section of the pushing column is square, a through hole 10 is formed in an end plate, the lower end of the pushing column movably penetrates through the through hole, the upper end of the pushing column is exposed out of the ground, a positioning sleeve 11 is correspondingly arranged in the batter pile and the pushing column, a square positioning hole is formed in the positioning sleeve, and the positioning sleeve is sleeved on the outer wall of the pushing column. And a pushing bolt 12 is arranged above the pushing column in the inclined pile column, and the end part of the pushing bolt is abutted against the pushing column. And a threaded sleeve 13 is correspondingly arranged in the inclined pile column and the pushing bolt, and the pushing bolt is in threaded connection with the threaded sleeve. The end part of the pushing bolt is tightly connected with a positioning disk 14, a steel ball 15 is arranged on the end surface of the positioning disk, a positioning groove 16 is arranged on the end surface of the pushing column, the positioning disk is arranged in the positioning groove, the steel ball is attached to the bottom surface of the positioning groove, a positioning ring 17 is tightly arranged at the end part of the pushing column, and the positioning ring is used for limiting the positioning disk. A plurality of gears 18 are rotatably mounted on the side wall of the inclined pile column, and 3 gears are arranged on each side surface of the inclined pile column at intervals. The bracing plate 19 is connected on the gear, and the gear top position is equipped with butt plate 20 on the batter post outer wall, is equipped with rack 21 on the promotion post outer wall, and every side that promotes the post all is equipped with the rack, and the transmission of gear and rack meshing promotes the bolt and rotates and drive and promote the post and move down, and the rack that promotes on the post drives gear revolve and makes the bracing plate upwards rotate and the butt on butt plate to make the bracing plate perpendicular with the batter post.
A method for constructing an inclined pile support structure comprises the following steps: firstly, constructing a fender post; secondly, drilling an inclined hole in the foundation pit; thirdly, constructing a cement-soil pile and an empty stirring section in the inclined hole, wherein the empty stirring section is arranged above the cement-soil pile; fourthly, before the cement-soil pile and the empty stirring section are condensed, embedding the lower end of the inclined pile column into the cement-soil pile to a designed depth, ensuring that the inclination angle of the inclined pile column is the same as that of the cement-soil pile, rotating a pushing bolt after the inclined pile column is installed in place so as to push the pushing column to move downwards, driving a rack on the pushing column to drive a gear to rotate, and enabling the supporting plate to rotate upwards and abut against the abutting plate; and fifthly, constructing a capping beam at the upper end of the fender pile, and anchoring the upper end of the inclined pile column into the capping beam. The other technical scheme is the same as that of the embodiment 1.
The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to be limiting in any way, and other variations and modifications are possible without departing from the scope of the invention as set forth in the appended claims.
Claims (10)
1. An inclined pile supporting structure is characterized by comprising an inclined pile column, a fender pile, a top compression beam and a cement soil pile arranged underground, wherein the top compression beam is rigidly connected to the fender pile; the cement soil pile is obliquely arranged along the length direction of the inclined pile column.
2. A batter pile support structure according to claim 1, wherein the batter pile columns are steel lattice columns.
3. A batter pile support structure according to claim 1, wherein the soil-cement pile comprises an anchoring section and a reinforcing section, the reinforcing section being disposed below the anchoring section, and the lower end of the batter pile column being embedded in the anchoring section.
4. A batter pile support structure according to claim 3, wherein the length of the anchoring section is not less than 4 metres and the length of the reinforcing section is not less than 3 metres.
5. A batter pile support structure according to claim 1, wherein a plurality of pegs are rigidly connected to the outer wall of the lower portion of the batter pile post, the pegs being disposed in the soil-cement pile.
6. A batter pile support structure according to claim 1, wherein the lower end of the batter pile post is connected to an end plate, the edge of the end plate extending outwardly from the batter pile post.
7. The batter pile support structure according to claim 1, wherein a plurality of shear reinforcements are provided in the cap adjacent to one side of the batter pile.
8. An inclined pile supporting structure according to claim 1, wherein a lifting pushing post is mounted at a lower position in the inclined pile, a pushing bolt is mounted above the pushing post in the inclined pile, the end of the pushing bolt abuts against the pushing post, a plurality of gears are rotatably mounted on the side wall of the inclined pile, the supporting plate is connected to the gears, an abutting plate is disposed on the outer wall of the inclined pile above the gears, a rack is disposed on the outer wall of the pushing post, the gears are in meshing transmission with the rack, the pushing bolt rotates to drive the pushing post to move downward, and the rack on the pushing post drives the gears to rotate so that the supporting plate rotates upward and abuts against the abutting plate.
9. A batter pile support construction method for constructing the batter pile support structure according to any one of claims 1 to 7, comprising the steps of: firstly, constructing a fender post; secondly, drilling an inclined hole in the foundation pit; thirdly, constructing a cement-soil pile and an empty stirring section in the inclined hole, wherein the empty stirring section is arranged above the cement-soil pile; fourthly, before the cement-soil pile and the empty stirring section are condensed, embedding the lower end of the inclined pile column into the cement-soil pile to a designed depth, and ensuring that the inclination angle of the inclined pile column is the same as the inclination angle of the cement-soil pile; and fifthly, constructing a capping beam at the upper end of the fender pile, and anchoring the upper end of the inclined pile column into the capping beam.
10. A batter pile support construction method for constructing the batter pile support structure of claim 8, comprising the steps of: firstly, constructing a fender post; secondly, drilling an inclined hole in the foundation pit; thirdly, constructing a cement-soil pile and an empty stirring section in the inclined hole, wherein the empty stirring section is arranged above the cement-soil pile; fourthly, before the cement-soil pile and the empty stirring section are condensed, embedding the lower end of the inclined pile column into the cement-soil pile to a designed depth, ensuring that the inclination angle of the inclined pile column is the same as that of the cement-soil pile, rotating a pushing bolt after the inclined pile column is installed in place so as to push the pushing column to move downwards, driving a rack on the pushing column to drive a gear to rotate, and enabling the supporting plate to rotate upwards and abut against the abutting plate; and fifthly, constructing a capping beam at the upper end of the fender pile, and anchoring the upper end of the inclined pile column into the capping beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110313474.1A CN113089683A (en) | 2021-03-24 | 2021-03-24 | Inclined pile supporting structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110313474.1A CN113089683A (en) | 2021-03-24 | 2021-03-24 | Inclined pile supporting structure and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113089683A true CN113089683A (en) | 2021-07-09 |
Family
ID=76669726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110313474.1A Pending CN113089683A (en) | 2021-03-24 | 2021-03-24 | Inclined pile supporting structure and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113089683A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914323A (en) * | 2021-09-28 | 2022-01-11 | 中亿丰建设集团股份有限公司 | Steel pipe grouting type tree root pile construction method for advanced support |
| CN115387350A (en) * | 2022-08-12 | 2022-11-25 | 浙江特坚建设科技有限公司 | Inclined cast strut preposed construction structure and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677189A (en) * | 2016-12-16 | 2017-05-17 | 安徽省城建设计研究总院有限公司 | Inclined pile wall bearing type foundation pit support structure and construction method thereof |
| CN209178982U (en) * | 2018-10-17 | 2019-07-30 | 江苏力引建材科技股份有限公司 | A kind of building anti-pulling pipe piles |
| CN110130358A (en) * | 2019-04-25 | 2019-08-16 | 王琪 | A kind of the taper pile support structure and construction method of pattern foundation pit supporting structure |
| CN209723010U (en) * | 2019-02-28 | 2019-12-03 | 王海波 | A kind of construction of hydro project foundation pile |
-
2021
- 2021-03-24 CN CN202110313474.1A patent/CN113089683A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677189A (en) * | 2016-12-16 | 2017-05-17 | 安徽省城建设计研究总院有限公司 | Inclined pile wall bearing type foundation pit support structure and construction method thereof |
| CN209178982U (en) * | 2018-10-17 | 2019-07-30 | 江苏力引建材科技股份有限公司 | A kind of building anti-pulling pipe piles |
| CN209723010U (en) * | 2019-02-28 | 2019-12-03 | 王海波 | A kind of construction of hydro project foundation pile |
| CN110130358A (en) * | 2019-04-25 | 2019-08-16 | 王琪 | A kind of the taper pile support structure and construction method of pattern foundation pit supporting structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914323A (en) * | 2021-09-28 | 2022-01-11 | 中亿丰建设集团股份有限公司 | Steel pipe grouting type tree root pile construction method for advanced support |
| CN115387350A (en) * | 2022-08-12 | 2022-11-25 | 浙江特坚建设科技有限公司 | Inclined cast strut preposed construction structure and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108842791B (en) | Detachable load pile anchor multistage supporting structure and construction method | |
| CN104099933A (en) | Supporting system reinforcement structure after foundation pit deepening | |
| CN101886400A (en) | Foundation of wind generating set | |
| CN102162258B (en) | Concrete-filled steel tubular high-pile tower footing structure of tower crane and construction method thereof | |
| CN113089683A (en) | Inclined pile supporting structure and construction method | |
| CN102864780A (en) | Supporting structure and supporting method of foundation pit | |
| CN111206575A (en) | Construction method of long spiral pressure-grouting pile | |
| CN101876160A (en) | Method for installing bracket used for in-situ casting concrete continuous girder bridge on soft soil foundation | |
| CN201770942U (en) | Support for soft soil foundation cast-in-place concrete continuous beam bridge | |
| CN111636417A (en) | Grouting type steel pipe pile and construction method thereof | |
| CN106120803A (en) | Base pit stand construction in the case of artesian water | |
| CN111455973A (en) | Composite foundation structure of prefabricated solid CFG pile and construction method thereof | |
| CN113482011B (en) | Large-diameter PHC pipe pile and cast-in-situ bored pile combined foundation pit supporting structure and method | |
| CN201991013U (en) | High-piled tower footing structure of tower crane concrete-filled steel tube | |
| CN206769047U (en) | A kind of steel lattice column and bored concrete pile attachment structure | |
| CN202830936U (en) | Supporting structure of foundation pit | |
| CN203866844U (en) | Supporting system reinforcing structure for deepened foundation pit | |
| CN103711123B (en) | The construction method of bamboo joint type mortar pile | |
| CN216339582U (en) | Combined inclined support for foundation pit support | |
| CN215759042U (en) | Batter pile bearing structure | |
| CN212896435U (en) | Combined prefabricated bearing platform pile foundation | |
| CN212656252U (en) | Novel transmission line tower foundation | |
| CN210049264U (en) | Assembled foundation | |
| CN109695249B (en) | Herringbone foundation pit supporting structure | |
| CN111962522A (en) | Combined supporting structure of inclined wedge-shaped pile and vertical pipe pile and construction 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: 20210709 |