CN110306538B - CFG pile for tower crane soft foundation and construction method - Google Patents
CFG pile for tower crane soft foundation and construction method Download PDFInfo
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- CN110306538B CN110306538B CN201910532560.4A CN201910532560A CN110306538B CN 110306538 B CN110306538 B CN 110306538B CN 201910532560 A CN201910532560 A CN 201910532560A CN 110306538 B CN110306538 B CN 110306538B
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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
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
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- 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
- E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The embodiment of the invention discloses a CFG pile for a tower crane soft foundation, which comprises a foundation, wherein a pile body groove is formed in the foundation, a main pile body is embedded in the pile body groove, a plurality of auxiliary pile grooves are formed in the outer side of the pile body groove at equal intervals, a reinforcing auxiliary pile sleeve for reinforcing the ground holding power of the main pile body is arranged in each auxiliary pile groove, an auxiliary mounting frame is connected in each reinforcing auxiliary pile sleeve in a sliding mode, the reinforcing auxiliary pile sleeves are arranged on the periphery of the main pile body, when a pile body is punched, a plurality of auxiliary pile grooves can be drilled in the periphery of the pile body groove, the reinforcing auxiliary pile sleeves are arranged in the auxiliary pile grooves, the auxiliary pile grooves are communicated with the pile body groove, when a user injects materials, the auxiliary pile grooves and the pile body groove can be filled at the same time, after the materials are dried, the ground holding power of the pile body can be fully improved by the auxiliary pile bodies on the periphery of the main pile body, so that when the main pile body is strongly shaken, soil around the pile body cannot be easily pushed, it has increased pile body stability for the security is higher when the tower crane uses.
Description
Technical Field
The embodiment of the invention relates to the field of engineering construction, in particular to a CFG pile for a tower crane soft foundation and a construction method.
Background
The CFG pile is a cement fly ash gravel pile, which is a variable-strength pile with certain strength and is prepared by mixing gravel, stone chips, sand and fly ash with cement and adding water and mixing through various pile-forming machines. The CFG pile is a low-strength concrete pile, can fully utilize the combined action of bearing capacity of soil among the piles, can transmit load to a deep foundation, has better technical performance and economic effect, has wider application range, and can be suitable for treating cohesive soil, silt soil and sandy soil, and foundations such as mucky soil with a pile end having a relatively hard soil layer and a bearing capacity standard value not less than 70KPa, non-under-consolidated artificial filling soil and the like, wherein an important part in a construction site is a tower crane, and the tower crane needs to be arranged on the CFG pile in the construction process.
Common tower crane CFG stake generally faces in the existing market, and it has only set up a king pile, so it is in soft foundation use, and external thrust can't be fully dispelled, in case the CFG stake receives frequent rocking, thereby the stake body earth all around just can be promoted and extrude together, great gap just can appear all around in the later stake body for the stability of stake body reduces, leads to equipment security to reduce.
Disclosure of Invention
Therefore, the embodiment of the invention provides a CFG pile for a tower crane soft foundation and a construction method thereof, and aims to solve the problems that in the prior art, due to the fact that only one main pile is arranged, external thrust cannot be sufficiently dissipated when the CFG pile is used in the soft foundation, once the CFG pile is frequently shaken, soil around the pile body is pushed to be squeezed together, then large gaps are formed around the pile body, the stability of the pile body is reduced, and the safety of equipment is reduced.
In order to achieve the above object, an embodiment of the present invention provides the following:
a CFG pile for a tower crane soft foundation comprises a foundation, wherein a pile body groove is formed in the foundation, a main pile body is embedded in the pile body groove, a plurality of auxiliary pile grooves are formed in the outer side of the pile body groove at equal intervals, a reinforcing auxiliary pile sleeve for reinforcing the ground grabbing force of the main pile body is arranged in each auxiliary pile groove, an auxiliary mounting frame is connected in each reinforcing auxiliary pile sleeve in a sliding mode, and a bearing reinforcing sleeve for assisting in reinforcing is arranged on the side wall above the main pile body;
the reinforcing auxiliary pile sleeve comprises a main reinforcing sleeve, a flow guide sleeve used for communicating a pile body groove and an auxiliary pile groove is arranged on one side, close to a main pile body, of the main reinforcing sleeve, an auxiliary reinforcing sleeve is arranged on the other side of the main reinforcing sleeve, and two limiting main strips are symmetrically arranged on the side wall of the main reinforcing sleeve.
As a preferable scheme of the invention, the side wall of the auxiliary reinforcing sleeve is provided with two limiting auxiliary strips corresponding to the position of the limiting main strip, the side wall of the limiting auxiliary strip is provided with a guiding groove, and the side wall of the limiting main strip is provided with a guiding block accommodated in the guiding groove.
As a preferable scheme of the invention, a push-out snap ring is slidably connected in the flow guide sleeve, a bearing block is arranged on the inner side wall of the main reinforcing sleeve, a sliding block is arranged in the bearing block, a sliding column is slidably arranged on the sliding block, one end of the sliding column is connected with the push-out snap ring, and the other end of the sliding column is connected with an inclined sliding block.
As a preferred scheme of the present invention, the outer side wall of the auxiliary reinforcing sleeve is provided with a plurality of pulley grooves, and pulleys rotatably connected to the auxiliary reinforcing sleeve are disposed in the pulley grooves.
As a preferable scheme of the invention, the auxiliary mounting frame comprises a mounting sliding ring, one side of the mounting sliding ring, which is close to the flow guide sleeve, is connected with a pressing column, and one end of the pressing column, which is close to the inclined sliding block, is connected with a pushing sliding block.
As a preferable scheme of the invention, a plurality of push wheel grooves are formed on the outer side wall of the mounting slip ring at equal intervals, a push wheel rotatably connected with the mounting slip ring is arranged in each push wheel groove, and a positioning block is arranged on the side wall of the mounting slip ring.
As a preferred scheme of the present invention, the inner side wall of the auxiliary reinforcing sleeve is provided with a positioning chute for limiting the positioning block.
As a preferred scheme of the present invention, the bearing reinforcing sleeve includes a positioning fixture block, a plurality of embedded columns are disposed on an outer sidewall of the positioning fixture block at equal intervals, a plurality of inclined guide columns are disposed on sidewalls of the embedded columns, and a pressing table is mounted on the sidewalls of the embedded columns.
A construction method of a CFG pile for a tower crane soft foundation comprises the following steps:
s100, acquiring the drilling position and the drilling depth of the main pile body, analyzing according to the information of the drilling position and the drilling depth of the main pile body to acquire the drilling position and the drilling depth of the auxiliary pile, assembling the pile machine in place, and then uniformly stirring the mixture;
s200, lowering the position of the drill rod until the set main pile body drilling position and depth are reached to obtain a main pile body groove, and then drilling a plurality of auxiliary pile body grooves according to the same operation;
s300, placing a reinforcing auxiliary pile sleeve for reinforcing the ground holding power of the main pile body into the auxiliary pile body groove, then feeding the mixture, additionally installing a bearing reinforcing sleeve, continuously feeding, and completely drying the material to obtain the CFG pile.
The specific operation steps of step S300 are as follows:
s301, inserting a main reinforcing sleeve with a flow guide sleeve into an auxiliary pile body groove along one side of the main pile body groove, sliding the auxiliary reinforcing sleeve into the auxiliary pile body groove, and sliding an auxiliary mounting frame between the main reinforcing sleeve and the auxiliary reinforcing sleeve to enable the auxiliary pile body groove to be communicated with the main pile body groove;
s302, mixture is fed into the auxiliary pile body groove and the main pile body groove through the conveying pump, meanwhile, the bearing reinforcing sleeve is additionally arranged at the upper end of the main pile body groove, and feeding is further carried out until the bearing reinforcing sleeve is completely filled.
The embodiment of the invention has the following advantages:
(1) the equipment is characterized in that a plurality of reinforcing auxiliary pile sleeves are arranged around a main pile body, when the pile body is punched, a plurality of auxiliary pile grooves can be drilled around the pile body groove, and meanwhile, the reinforcing auxiliary pile sleeves are placed in the auxiliary pile grooves, so that the auxiliary pile grooves are communicated with the pile body groove;
(2) this equipment has still set up simultaneously and has born the weight of and reinforce the cover, when the user annotates the material in order to form the pile head and link into an organic whole main pile body and vice pile body toward bearing the weight of and reinforcing the cover, the embedding post of positioning fixture block lateral wall also can be poured into the thick liquids, and the material that flows in the embedding post also can be filled up oblique guide pillar, treat the dry back of material, pile head embedding post all around can further unload the external shaking force of applying for the pile head, no matter from which direction applied force all can be unloaded by the embedding post that corresponds promptly, make the stability of pile body higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a top partial cross-sectional view of a reinforcing secondary pile sleeve of the present invention.
In the figure:
1-pile body groove; 2-reinforcing the auxiliary pile sleeve; 3-auxiliary mounting frame; 4-bearing reinforcing sleeve; 5-foundation base;
101-auxiliary pile grooves; 102-main pile body;
201-auxiliary reinforcing sleeve; 202-pulley groove; 203-a pulley; 204-a limiting main strip; 205-limiting secondary strips; 206-guide groove; 207-a leading block; 208-a flow guide sleeve; 209-slider; 210-a slanted slider; 211-pushing out the snap ring; 212-a carrier block; 213-main reinforcement sleeve; 214-sliding post;
301-pushing the slider; 302-pressing the column; 303-installing a slip ring; 304-positioning chute; 305-a locating block; 306-a pusher groove; 307-propulsion wheels;
401-positioning a fixture block; 402-embedded pillars; 403-inclined guide post; 404-pressing table.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figures 1 and 2, the invention provides a CFG pile for a tower crane soft foundation, which aims to connect a pile body groove 1 and an auxiliary pile groove 101 through a reinforcing auxiliary pile sleeve 2 so as to enable the ground holding force of the poured pile body to be larger, and simultaneously increase the bearing capacity of a pile head through the reinforcing auxiliary pile sleeve 2 so as to enable the pile head to have better stability and not to easily shake, and the CFG pile comprises a foundation 5, wherein a pile body groove 1 is arranged in the foundation 5, a main pile body 102 is embedded in the pile body groove 1, a plurality of auxiliary pile grooves 101 are arranged on the outer side of the pile body groove 1 at equal intervals, the depth of the auxiliary pile grooves 101 is only required to be larger than 1/3 of the depth of the pile body groove 1, a reinforcing auxiliary pile sleeve 2 for reinforcing the ground holding force of the main pile body 102 is arranged in the auxiliary pile grooves 101, the reinforcing auxiliary pile sleeve 2 is used for connecting the pile body groove 1 and the auxiliary pile grooves 101, and simultaneously the auxiliary pile grooves 101 can be ensured not to be easily buried, the auxiliary mounting frame 3 is connected to the inside of the auxiliary reinforcing pile sleeve 2 in a sliding mode, the bearing reinforcing sleeve 4 for auxiliary reinforcement is arranged on the side wall above the main pile body 102, the bearing reinforcing sleeve 4 exists as a model, and when the pile head is poured, the surrounding embedded columns 402 can also be poured, so that the ground grabbing force and the bearing capacity of the pile body are greatly improved.
This equipment is when using, can drill out a plurality of vice stake groove 101 all around in stake body groove 1, put into simultaneously in vice stake groove 101 and consolidate vice stake cover 2, make vice stake groove 101 and stake body groove 1 intercommunication, when the user pours into the material, can fill up vice stake groove 101 and stake body groove 1 simultaneously, treat the dry back of material, main stake body 102 auxiliary pile body all around can fully improve the land fertility of grabbing of stake body, when making main stake body 102 receive strong rocking, stake body earth all around can not pushed the extrusion easily, its stability that has increased the stake body, the security is higher when making the tower crane use.
Simultaneously when the user is towards bearing reinforcing cover 4 in annotating the material in order to form the pile head and with main pile body 102 and vice pile body link into an organic whole, the embedding post 402 of location fixture block 401 lateral wall also can be poured into the thick liquids, and the material that flows into in embedding post 402 also can be filled up oblique guide pillar, treat the dry back of material, pile head embedding post all around can further unload the external shaking power of applying for the pile head, no matter promptly from which direction applied force all can be unloaded by the embedding post that corresponds for the stability of pile body is higher.
The reinforcing auxiliary pile sleeve 2 comprises a main reinforcing sleeve 213, one side of the main reinforcing sleeve 213, which is close to the main pile body 102, is provided with a flow guide sleeve 208 for communicating the pile body groove 1 with the auxiliary pile groove 101, the other side of the main reinforcing sleeve 213 is provided with an auxiliary reinforcing sleeve 201, and the side wall of the main reinforcing sleeve 213 is symmetrically provided with two limiting main strips 204.
When the auxiliary reinforcing pile sleeve 2 is used, the main reinforcing sleeve 213 can be inserted into the auxiliary pile groove 101 along one side close to the main pile body 102, when the auxiliary reinforcing pile sleeve 2 is lowered to the lowest position, the guide sleeve 208 is made to penetrate into soil, the pile body groove 1 and the auxiliary pile groove 101 are communicated, meanwhile, the auxiliary reinforcing sleeve 201 is clamped, the auxiliary limiting strip 205 on the auxiliary reinforcing sleeve 201 slides along the guide block 207 on the main limiting strip 204, and the auxiliary reinforcing sleeve 201 and the main reinforcing sleeve 213 are completely embedded into the auxiliary pile groove 101.
The lateral wall of vice reinforcing sleeve 201 is provided with two spacing vice strips 205 that correspond with spacing main strip 204 position, leading position recess 206 has been seted up to the lateral wall of spacing vice strip 205, the lateral wall of spacing main strip 204 is provided with the position block 207 that leads that holds in leading position recess 206.
Further, a push-out snap ring 211 is connected in the guide sleeve 208 in a sliding manner, the push-out snap ring 211 can enable soil in the guide sleeve 208 to be pushed into the pile body groove 1, meanwhile, in order to enable the pushing to be more convenient, a plurality of triangular push blocks are arranged in the push-out snap ring 211 at equal intervals, a bearing block 212 is arranged on the inner side wall of the main reinforcing sleeve 213, a sliding block 209 is arranged in the bearing block 212, a sliding column 214 is arranged on the sliding block 209 in a sliding manner, one end of the sliding column 214 is connected with the push-out snap ring 211, and the other end of the sliding column 214 is connected with an inclined sliding block 210.
This release snap ring 211 can make the soil in the water conservancy diversion cover 208 can not block up the circulation of cement powder thick liquids, and during its actual operation, in case the water conservancy diversion cover 208 bores into soil, then soil can promote to release snap ring 211 and sliding column 214 and suitably remove, when treating in the water conservancy diversion cover 208 imbeds soil completely, the user can put down supplementary mounting bracket 3 this moment and make oblique slider 210 promoted and remove towards water conservancy diversion cover 208 direction, until in the water conservancy diversion cover 208 soil is totally released can.
The outer side wall of the auxiliary reinforcing sleeve 201 is provided with a plurality of pulley grooves 202, the pulley grooves 202 are internally provided with pulleys 203 which are rotatably connected with the auxiliary reinforcing sleeve 201, and the pulleys 203 are arranged to ensure that when a user puts in the auxiliary reinforcing sleeve 201, soil in the flow guide sleeve 208 is not pushed out, namely, a gap exists between the main reinforcing sleeve 213 and the inner wall of the auxiliary pile groove 101, so that the auxiliary reinforcing sleeve 201 cannot be easily inserted when inserted, and the sliding friction of the auxiliary reinforcing sleeve 201 can be reduced due to the existence of the pulleys 203, so that the auxiliary reinforcing sleeve is more easily clamped into the auxiliary pile groove 101.
Specifically, the auxiliary mounting frame 3 includes a mounting slip ring 303, a pressing column 302 is connected to one side of the mounting slip ring 303 close to the flow guide sleeve 208, and a pushing slider 301 is connected to one end of the pressing column 302 close to the inclined slider 210.
When the auxiliary mounting frame 3 is used, once the mounting slip ring 303 is placed between the auxiliary reinforcing sleeve 201 and the main reinforcing sleeve 213, the auxiliary reinforcing sleeve 201 and the main reinforcing sleeve 213 can be attached to the inner wall of the auxiliary pile groove 101 more tightly, and then when the pushing slide block 301 contacts the inclined slide block 210, the inclined slide block 210 can be pushed to push the sliding pushing snap ring 211 and the sliding column 214 to slide.
The outer side wall of the mounting slip ring 303 is provided with a plurality of push wheel grooves 306 at equal intervals, the push wheel grooves 306 are internally provided with push wheels 307 which are rotatably connected with the mounting slip ring 303, the side wall of the mounting slip ring 303 is provided with positioning blocks 305, the positioning blocks 305 are arranged to enable the inclined slider 210 and the push slider 301 to be in normal contact, the inner side wall of the auxiliary reinforcing sleeve 201 is provided with positioning sliding grooves 304 which limit the positioning blocks 305, so that the positioning blocks 305 can slide along the positioning sliding grooves 304 when the mounting slip ring 303 slides in, the inclined slider 210 and the push slider 301 cannot be dislocated, and the push wheels 307 are arranged to enable the mounting slip ring 303 to easily slide between the auxiliary reinforcing sleeve 201 and the main reinforcing sleeve 213 and cannot be clamped.
Further, the bearing reinforcing sleeve 4 comprises a positioning fixture block 401, a plurality of embedded columns 402 are arranged on the outer side wall of the positioning fixture block 401 at equal intervals, a plurality of inclined guide columns 403 are arranged on the side wall of each embedded column 402, and a pressing table 404 is mounted on the side wall of each embedded column 402.
The bearing reinforcing sleeve 4 can be internally poured with slurry to form a pile head and connect the main pile body 102 and the auxiliary pile body into a whole, the embedded columns 402 and the inclined guide columns 403 can be filled with slurry, after the materials are dried, the embedded columns 402 around the pile head can further unload shaking force applied to the pile head from the outside, namely, the force applied from any direction can be unloaded by the corresponding embedded columns 402, so that the bearing capacity of the pile body is fully improved, and the pile body of a soft foundation can not move easily.
A construction method of a CFG pile for a tower crane soft foundation comprises the following steps:
s100, acquiring the drilling position and the drilling depth of the main pile body, analyzing according to the information of the drilling position and the drilling depth of the main pile body to acquire the drilling position and the drilling depth of the auxiliary pile, assembling the pile machine in place, and then uniformly stirring the mixture;
s200, lowering the position of the drill rod until the set main pile body drilling position and depth are reached to obtain a main pile body groove, and then drilling a plurality of auxiliary pile body grooves according to the same operation;
s300, placing a reinforcing auxiliary pile sleeve for reinforcing the ground holding power of the main pile body into the auxiliary pile body groove, then feeding the mixture, additionally installing a bearing reinforcing sleeve, continuously feeding, and completely drying the material to obtain the CFG pile.
The specific operation steps of step S300 are as follows:
s301, inserting a main reinforcing sleeve with a flow guide sleeve into an auxiliary pile body groove along one side of the main pile body groove, sliding the auxiliary reinforcing sleeve into the auxiliary pile body groove, and sliding an auxiliary mounting frame between the main reinforcing sleeve and the auxiliary reinforcing sleeve to enable the auxiliary pile body groove to be communicated with the main pile body groove;
s302, mixture is fed into the auxiliary pile body groove and the main pile body groove through the conveying pump, meanwhile, the bearing reinforcing sleeve is additionally arranged at the upper end of the main pile body groove, and feeding is further carried out until the bearing reinforcing sleeve is completely filled.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The CFG pile for the tower crane soft foundation is characterized by comprising a foundation (5), a pile body groove (1) is formed in the foundation (5), a main pile body (102) is embedded in the pile body groove (1), a plurality of auxiliary pile grooves (101) are formed in the outer side of the pile body groove (1) at equal intervals, a reinforcing auxiliary pile sleeve (2) for reinforcing the ground grabbing force of the main pile body (102) is arranged in each auxiliary pile groove (101), an auxiliary mounting frame (3) is connected in each reinforcing auxiliary pile sleeve (2) in a sliding mode, and a bearing reinforcing sleeve (4) for assisting in reinforcing is arranged on the side wall above the main pile body (102);
consolidate vice pile cover (2) including main reinforced cover (213), main reinforced cover (213) are provided with water conservancy diversion cover (208) that are used for intercommunication pile body groove (1) and vice pile groove (101) in one side that is close to main pile body (102), the opposite side of main reinforced cover (213) is provided with vice reinforced cover (201), the lateral wall symmetry of main reinforced cover (213) is provided with two spacing main (204).
2. The CFG pile for the soft foundation of the tower crane according to claim 1, wherein two limiting auxiliary strips (205) corresponding to the limiting main strips (204) are arranged on the side wall of the auxiliary reinforcing sleeve (201), a guide groove (206) is formed in the side wall of each limiting auxiliary strip (205), and a guide block (207) accommodated in the guide groove (206) is arranged on the side wall of each limiting main strip (204).
3. The CFG pile for the soft foundation of the tower crane according to claim 2, wherein a push-out snap ring (211) is slidably connected in the guide sleeve (208), a bearing block (212) is arranged on the inner side wall of the main reinforcing sleeve (213), a sliding block (209) is arranged in the bearing block (212), a sliding column (214) is slidably arranged on the sliding block (209), one end of the sliding column (214) is connected with the push-out snap ring (211), and the other end of the sliding column (214) is connected with an inclined sliding block (210).
4. The CFG pile for the soft foundation of the tower crane according to claim 2, wherein a plurality of pulley grooves (202) are formed in the outer side wall of the auxiliary reinforcing sleeve (201), and pulleys (203) rotatably connected with the auxiliary reinforcing sleeve (201) are arranged in the pulley grooves (202).
5. The CFG pile for the tower crane soft foundation is characterized in that the auxiliary mounting frame (3) comprises a mounting sliding ring (303), a pressing column (302) is connected to one side, close to the flow guide sleeve (208), of the mounting sliding ring (303), and a pushing sliding block (301) is connected to one end, close to the inclined sliding block (210), of the pressing column (302).
6. The CFG pile for the tower crane soft foundation according to claim 5, wherein a plurality of wheel pushing grooves (306) are formed in the outer side wall of the installation slip ring (303) at equal intervals, a pushing wheel (307) rotatably connected with the installation slip ring (303) is arranged in each wheel pushing groove (306), and a positioning block (305) is arranged on the side wall of the installation slip ring (303).
7. The CFG pile for the soft foundation of the tower crane according to claim 2, wherein a positioning chute (304) for limiting a positioning block (305) is formed in the inner side wall of the auxiliary reinforcing sleeve (201).
8. The CFG pile for the tower crane soft foundation is characterized in that the load-bearing reinforcing sleeve (4) comprises a positioning fixture block (401), a plurality of embedding columns (402) are arranged on the outer side wall of the positioning fixture block (401) at equal intervals, a plurality of inclined guide columns (403) are arranged on the side wall of each embedding column (402), and a pressing table (404) is installed on the side wall of each embedding column (402).
9. A construction method of a CFG pile for a tower crane soft foundation is characterized by comprising the following steps:
s100, acquiring the drilling position and the drilling depth of the main pile body, analyzing according to the information of the drilling position and the drilling depth of the main pile body to acquire the drilling position and the drilling depth of the auxiliary pile, assembling the pile machine in place, and then uniformly stirring the mixture;
s200, lowering the position of the drill rod until the set main pile body drilling position and depth are reached to obtain a main pile body groove, and then drilling a plurality of auxiliary pile body grooves according to the same operation;
s300, placing a reinforcing auxiliary pile sleeve for reinforcing the ground holding power of the main pile body into the auxiliary pile body groove, then feeding the mixture, additionally installing a bearing reinforcing sleeve, continuously feeding, and completely drying the material to obtain the CFG pile.
10. The construction method of the CFG pile for the soft foundation of the tower crane according to claim 9, wherein the specific operation steps of the step S300 are as follows:
s301, inserting a main reinforcing sleeve with a flow guide sleeve into an auxiliary pile body groove along one side of the main pile body groove, sliding the auxiliary reinforcing sleeve into the auxiliary pile body groove, and sliding an auxiliary mounting frame between the main reinforcing sleeve and the auxiliary reinforcing sleeve to enable the auxiliary pile body groove to be communicated with the main pile body groove;
s302, mixture is fed into the auxiliary pile body groove and the main pile body groove through the conveying pump, meanwhile, the bearing reinforcing sleeve is additionally arranged at the upper end of the main pile body groove, and feeding is further carried out until the bearing reinforcing sleeve is completely filled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910532560.4A CN110306538B (en) | 2019-06-19 | 2019-06-19 | CFG pile for tower crane soft foundation and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910532560.4A CN110306538B (en) | 2019-06-19 | 2019-06-19 | CFG pile for tower crane soft foundation and construction method |
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| CN110306538A CN110306538A (en) | 2019-10-08 |
| CN110306538B true CN110306538B (en) | 2020-11-06 |
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| CN111719558B (en) * | 2020-06-29 | 2021-09-21 | 中能建西北城市建设有限公司 | CFG pile composite foundation construction process |
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