CN110904952B - Horizontal bearing reinforcement for soft soil foundation filling pile - Google Patents
Horizontal bearing reinforcement for soft soil foundation filling pile Download PDFInfo
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- CN110904952B CN110904952B CN201911229415.5A CN201911229415A CN110904952B CN 110904952 B CN110904952 B CN 110904952B CN 201911229415 A CN201911229415 A CN 201911229415A CN 110904952 B CN110904952 B CN 110904952B
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- reinforcement cage
- soft soil
- base plate
- plate
- horizontal bearing
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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
Abstract
The invention discloses a horizontal bearing reinforcement of a soft soil foundation filling pile, which comprises a reinforcement cage which is placed into a foundation pit, and a horizontal bearing device which is circumferentially arranged along the outer side of the reinforcement cage and is used for forming a circumferential rigid support so as to reinforce the circumferential stress of the filling pile in the soft soil foundation. The technical scheme has the technical effects of stable structure and stable circumferential protection effect, and can be widely applied to the field of building construction support.
Description
Technical Field
The invention relates to the field of building construction support. More particularly, the invention relates to a horizontal bearing reinforcement of a soft soil foundation filling pile.
Background
In the building construction, the bored concrete pile is as the basic building body of ground, the stability and the bearing capacity of its structure will directly determine superstructure's stability and basic nature, especially in the foundation bored concrete pile construction of soft soil nature, its circumferential safeguard measure is very important, the bored concrete pile of soft soil foundation among the prior art all has the poured ground unstability always, can cause the aversion of bored concrete pile and phenomenons such as rock through outside extrusion, and then influence superstructure's stability.
Disclosure of Invention
The invention aims to provide a horizontal bearing reinforcement of a soft soil foundation cast-in-place pile, which has a stable structure and a stable circumferential protection effect.
To achieve these objects and other advantages in accordance with the purpose of the invention, a horizontal bearing reinforcement for a soft soil foundation cast-in-place pile is provided, which includes a reinforcement cage lowered into a foundation pit, a horizontal bearing means provided along an outer circumference of the reinforcement cage for forming a circumferential rigid support to reinforce a circumferential stress of the cast-in-place pile in the soft soil foundation.
Preferably, the horizontal bearing device comprises a plurality of layers of annular wing plates which are sleeved on the upper and lower sides of the outer side wall of the steel reinforcement cage; the wing plates are all provided with a plurality of wing plates,
the plurality of sub-plates are arranged in an equidistant mode and are arranged in a circular ring shape, every two adjacent wing plates are connected through an elastic connecting piece, and the upper end of each sub-plate is correspondingly hinged to the connecting position of the reinforcement cage.
Preferably, a limiting block is arranged at one side of the upper end of each sub-plate close to the reinforcement cage, so that the lower part of each sub-plate is opened at an angle.
Preferably, the horizontal bearing device further comprises,
the plurality of push plates are circumferentially arranged on the inner wall of the reinforcement cage at equal intervals, and the lower end of each push plate is correspondingly hinged with the reinforcement cage;
and the stress rods are uniformly and fixedly arranged on the plane of each push plate towards the outer side of the steel reinforcement cage, and one ends of all the stress rods, which are far away from the push plates, are sharp tops with gradually reduced diameters and extend out of the steel reinforcement cage to be inserted into the soft soil.
Preferably, a pull ring is arranged on a plane, away from the steel reinforcement cage, of the middle of the lower portion of each branch plate, the pull ring is connected with one end of a traction rope, the other end of the traction rope stretches into the steel reinforcement cage, the pull rope is tightened and straightened through a vertically arranged traction rod, and a pulley capable of freely rotating is arranged on a portion, contacting with the outer wall of the traction rope, when the traction rope stretches into the steel reinforcement cage.
Preferably, a plurality of material receiving hoppers with upward openings are arranged on the rod body of the traction rod in a vertically staggered manner;
the traction rod is a thickened steel bar or an alloy metal rod.
Preferably, each stress rod is provided with a pull-back part on the rod body of the outer side part of the reinforcement cage, the pull-back part is used for hooking the reinforcement cage to form fixation, the pull-back part comprises,
the steel bar cage comprises an upper base plate and a lower base plate, wherein one end of the upper base plate and one end of the lower base plate are mutually hinged, a plurality of springs are arranged between opposite planes at the other ends of the upper base plate and the lower base plate, the lower base plate is fixedly arranged on the stress rod, and the end, far away from the hinge joint, of a pull-back part on the stress rod is arranged right opposite to the steel bar cage.
Preferably, the lower base plate is provided with a protection plate on the upper surface of the outer side of the spring, and the height of the protection plate is less than one third of the height of the spring.
Preferably, one end of the upper base plate and one end of the lower base plate, which are close to the hinge joint, are provided with a limiting plate, and the limiting plate is used for limiting the position of the upper base plate exceeding the spring at the normal extension height.
The invention at least comprises the following beneficial effects:
1. the structure is stable, forms the circumference stress support in pouring of concrete bored concrete pile, and the steadiness of vertical structure and the whole body soil body in the soft soil matter of reinforcing, and through the pterygoid lamina of circumference setting on the steel reinforcement cage lateral wall, during the soil body of the side is corresponded in the embedding of pouring in-process, then forms the integral structure with peripheral soil body.
2. The multiple horizontal bearing device of different levels still includes the stress pole that circumference set up, and the stress pole has itself small, and its sharp top structure easily pierces through's characteristic, so, is particularly suitable for the environment of pouring of soft soil foundation.
3. Articulated connected mode can adapt to the soft soil foundation of different intensity to and the elastic connection mode between the double-phase adjacent pterygoid lamina can make when pouring, every divides the board and is opening the peripheral soil body in-process of embedding, can form different opening according to the softness and hardness of this soil property, and suitability and practicality are all stronger.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a structural view of a horizontal bearing reinforcement of a soft soil foundation filling pile of the present invention;
FIG. 2 is a top view of the horizontal load-bearing reinforcement of the soft soil foundation cast-in-place pile of the present invention;
FIG. 3 is a block diagram of the horizontal carrier of the present invention;
FIG. 4 is a view showing the construction of the pull-back portion of the present invention;
FIG. 5 is a connection structure view of a traction rope, a traction rod, a pulley and a branch plate according to the present invention;
the specification reference numbers indicate: 1. the steel reinforcement cage, 2, pterygoid lamina, 3, minute board, 4, elastic connection spare, 5, push pedal, 6, stress pole, 7, the portion of drawing back, 8, haulage rope, 9, traction lever, 10, pulley, 11, pull ring, 701, spring, 702, guard plate, 703 limiting plate.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-5, a horizontal bearing reinforcement for a soft soil foundation cast-in-place pile comprises a reinforcement cage 1 which is placed in a foundation pit, a horizontal bearing device which is circumferentially arranged along the outer side of the reinforcement cage 1 and is used for forming circumferential rigid support to reinforce circumferential stress of the cast-in-place pile in the soft soil foundation.
In the technical scheme, the cast-in-place pile is easy to extrude and displace in a soft soil foundation under the compression environment of a certain side, so that the cast-in-place pile inclines, the foundation support is unstable, and the construction of an upper building is influenced, therefore, when the cast-in-place pile is formed and poured, a horizontal bearing device is arranged on the outer side of the cast-in-place pile and used for enhancing the circumferential stress of the cast-in-place pile so that the cast-in-place pile and the surrounding soil body form an integrated connecting structure;
during the setting, bear the device with the level and set up along 1 circumference of steel reinforcement cage and finish the back, transfer 1 level of steel reinforcement cage to the foundation ditch in again.
The cast-in-place pile pouring construction method based on the technical scheme has the advantages that the size requirement is met on the construction diameter of the foundation pit, the diameter of the foundation pit is slightly enlarged on the basis of the diameter of the preset cast-in-place pile, a reserved space is reserved for contact and embedding of the horizontal bearing device and the surrounding soil body, and after construction is completed, the cast-in-place pile and the reserved space on the inner side of the foundation pit are buried.
As shown in fig. 2, in another technical solution, the horizontal bearing device includes a plurality of annular wing plates 2 arranged up and down on the outer side wall of the reinforcement cage 1; the wing plates 2 each comprise a plurality of,
the plurality of sub-plates 3 are arranged in an equidistant mode and are arranged in a circular ring shape, every two adjacent wing plates 2 are connected through an elastic connecting piece 4, and the upper end of each sub-plate 3 is correspondingly hinged to the connecting position of the reinforcement cage 1.
In another technical scheme, a limiting block is arranged at one side of the upper end of each sub-plate 3 close to the reinforcement cage 1, so that the lower part of each sub-plate 3 is opened at an angle.
In above-mentioned technical scheme, enclose through a plurality of minute boards 3 and establish cyclic annular circumference and articulate the lateral wall at steel reinforcement cage 1, and connect through elastic connection spare 4 between every two adjacent minute boards 3 of all minute boards 3, when pterygoid lamina 2 opens according to the size of foundation ditch, form stretch-draw space through elastic connection spare 4, in order to adapt to the foundation ditch of different diameter sizes, pterygoid lamina 2 is kept away from in steel reinforcement cage 1's one end inserts the weak soil that corresponds the side, form circumference and strut, in order to strengthen steel reinforcement cage 1's circumference stress, pour the back, steel reinforcement cage 1 is poured the shaping by an organic whole and is the bored concrete pile.
In another technical solution, as shown in fig. 3, the horizontal bearing device further includes,
the push plates 5 are circumferentially and equidistantly arranged on the inner wall of the reinforcement cage 1, and the lower end of each push plate 5 is correspondingly hinged with the reinforcement cage 1;
and the stress rods 6 are uniformly and fixedly arranged on the plane of each push plate 5 facing the outer side of the steel reinforcement cage 1, and one ends of all the stress rods 6, which are far away from the push plates 5, are sharp tops with gradually reduced diameters and extend out of the steel reinforcement cage 1 to be inserted into the soft soil.
In the above technical scheme, the lower extreme setting of a plurality of push pedals 5 is inboard at steel reinforcement cage 1, the upper end of push rod forms weight towards the 1 central direction free fall of steel reinforcement cage, and the perpendicular fixed connection of one end of stress pole 6 is on the side of keeping away from steel reinforcement cage 1 center in the upper end of push rod, so the pole body of stress pole 6 forms the friction with the lateral wall of steel reinforcement cage 1, the upper end that makes push pedal 5 is certain angle and fixes towards the central direction of steel reinforcement cage 1, when steel reinforcement cage 1 begins to pour the concrete, the face of pouring on that the concrete can rise gradually, rise to the bottom plate of push pedal 5 until, and then the upper end orientation that promotes push pedal 5 is kept away from steel reinforcement cage 1 side and is removed, and then promote in the soft soil of push rod slowly inserting corresponding side, form fixedly.
As shown in fig. 5, in another technical solution, a pull ring 11 is disposed on a plane of the middle portion of the lower portion of each plate 3 away from the steel reinforcement cage 1, the pull ring 11 is connected with one end of a pull rope 8, the other end of the pull rope 8 extends into the steel reinforcement cage 1, the pull rope is tightened and straightened through a vertically disposed pull rod 9, and a pulley 10 capable of freely rotating is disposed on a portion of the pull rope 8 contacting with the outer wall of the steel reinforcement cage 1 when the pull rope extends into the steel reinforcement cage.
In another technical scheme, a plurality of material receiving hoppers with upward openings are arranged on the rod body of the traction rod 9 in a vertically staggered manner;
the traction rod 9 is a thickened steel bar or an alloy metal rod.
In above-mentioned technical scheme, in order to make pterygoid lamina 2 can open and imbed the weak soil around more smoothly, divide board 3 through the one end pulling of haulage rope 8, the other end hangs down to draw 1 inboard side of steel reinforcement cage and utilizes the haulage rod 9 dead weight to make pterygoid lamina 2 circumference open to set up a plurality of openings connecting hoppers up along the direction of height on the pole body of haulage rod 9, when the concrete falls into connecting hopper, can increase its weight, the tenesmus pulling haulage rope 8, and then the branch board 3 of pulling, make it open.
The size of the receiving hopper can be designed according to the force required by lifting the wing plate 2.
In another technical scheme, as shown in fig. 4, each stress rod 6 is provided with a pull-back portion 7 on the rod body of the outer part of the reinforcement cage 1, for hooking the reinforcement cage 1 to form a fixation, the pull-back portion 7 includes,
the steel reinforcement cage comprises an upper base plate and a lower base plate, wherein one end of the upper base plate and one end of the lower base plate are hinged with each other, a plurality of springs 701 are arranged between opposite planes at the other ends of the upper base plate and the lower base plate, the lower base plate is fixedly arranged on the stress rod 6, and one end, far away from the hinge, of a pull-back portion 7 on the stress rod 6 is arranged right opposite to the steel reinforcement cage 1.
In the above technical solution, the pull-back portion 7 is provided to prevent the pull rod 9 from extending back toward the reinforcement cage 1 during the insertion of the soft soil.
In another technical solution, a protection plate 702 is disposed on the upper surface of the lower base plate on the outer side of the spring 701, and the height of the protection plate 702 is less than one third of the height of the spring 701.
In the above technical solution, when the pull-back portion 7 hooks the outer sidewall of the reinforcement cage 1, it will contact the protection plate 702 first to form a rigid interference surface.
In another technical solution, a limit plate 703 is disposed at one end of the upper plate and the lower plate close to the hinged end, and the limit plate 703 is used for limiting the position of the upper plate exceeding the position of the spring 701 at the normal extension height.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (4)
1. A horizontal bearing reinforcement of a soft soil foundation filling pile comprises a reinforcement cage which is placed into a foundation pit, and is characterized in that a horizontal bearing device is circumferentially arranged along the outer side of the reinforcement cage and is used for forming a circumferential rigid support to reinforce the circumferential stress of the filling pile in the soft soil foundation;
the horizontal bearing device also comprises a horizontal bearing device,
the plurality of push plates are circumferentially arranged on the inner wall of the reinforcement cage at equal intervals, and the lower end of each push plate is correspondingly hinged with the reinforcement cage;
and the stress rods are uniformly and fixedly arranged on the plane of each push plate towards the outer side of the steel reinforcement cage, and one ends of all the stress rods, which are far away from the push plates, are sharp tops with gradually reduced diameters and extend out of the steel reinforcement cage to be inserted into the soft soil.
2. A soft soil foundation filling pile horizontal bearing reinforcement according to claim 1, wherein each stress rod is provided with a pull-back part on the rod body of the outer side part of the reinforcement cage, which is used for hooking the reinforcement cage to form a fixed part, the pull-back part comprises,
the steel bar cage comprises an upper base plate and a lower base plate, wherein one end of the upper base plate and one end of the lower base plate are mutually hinged, a plurality of springs are arranged between opposite planes at the other ends of the upper base plate and the lower base plate, the lower base plate is fixedly arranged on the stress rod, and the end, far away from the hinge joint, of a pull-back part on the stress rod is arranged right opposite to the.
3. A soft soil foundation filling pile horizontal load-bearing reinforcement as claimed in claim 2, wherein a guard plate is provided on the outer upper surface of the spring of the lower plate, and the height of the guard plate is less than one third of the height of the spring.
4. A soft soil foundation filling pile horizontal load-bearing reinforcement as claimed in claim 2, wherein a limiting plate is provided at the end of the upper and lower base plates near the hinged joint for limiting the position of the upper base plate beyond the spring at normal extension height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911229415.5A CN110904952B (en) | 2019-12-04 | 2019-12-04 | Horizontal bearing reinforcement for soft soil foundation filling pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911229415.5A CN110904952B (en) | 2019-12-04 | 2019-12-04 | Horizontal bearing reinforcement for soft soil foundation filling pile |
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| Publication Number | Publication Date |
|---|---|
| CN110904952A CN110904952A (en) | 2020-03-24 |
| CN110904952B true CN110904952B (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911229415.5A Active CN110904952B (en) | 2019-12-04 | 2019-12-04 | Horizontal bearing reinforcement for soft soil foundation filling pile |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0730550B2 (en) * | 1992-02-14 | 1995-04-05 | 大亜ソイル株式会社 | How to build foundation piles |
| CN101899829B (en) * | 2010-07-22 | 2011-08-24 | 浙江中隧桥波形钢腹板有限公司 | Evaginable wing plate hollow steel pipe pile |
| CN205329688U (en) * | 2016-01-12 | 2016-06-22 | 山东科技大学 | Resistance -increasing slip casting stock |
| CN106087987A (en) * | 2016-08-12 | 2016-11-09 | 中国地质大学（武汉） | A kind of expansion steel reinforcement cage |
| CN106988300B (en) * | 2017-03-15 | 2019-04-30 | 东南大学 | A kind of soft soil foundation bored concrete pile horizontal bearing reinforcement and its construction method |
| CN209723010U (en) * | 2019-02-28 | 2019-12-03 | 王海波 | A kind of construction of hydro project foundation pile |
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