CN111424655B - Concrete embedded pile for reinforcing soft foundation - Google Patents
Concrete embedded pile for reinforcing soft foundation Download PDFInfo
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- CN111424655B CN111424655B CN202010250583.9A CN202010250583A CN111424655B CN 111424655 B CN111424655 B CN 111424655B CN 202010250583 A CN202010250583 A CN 202010250583A CN 111424655 B CN111424655 B CN 111424655B
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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
- E02D5/62—Compacting the soil at the footing or in or along a casing by forcing cement or like material through tubes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/1685—Shapes cylindrical
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/1692—Shapes conical or convex
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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
- E02D2250/003—Injection of material
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0001—Rubbers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0079—Granulates
Abstract
The invention discloses a concrete pre-embedded pile for reinforcing a soft foundation, which belongs to the technical field of pre-embedded pile reinforcement, and is characterized in that the pre-embedded pile is pre-embedded in soft soil, concrete with temperature is poured into a flow guide hole, the concrete enters a built-in cavity and then contacts a cylindrical air bag, ammonium bicarbonate powder in the cylindrical air bag is heated, decomposed and expanded, the air pressure at the lower side of the cylindrical air bag is increased, a pre-sealing film is cracked, a deformed rubber bag is extruded towards the outer side under the reset action of an elastic telescopic rod, and the calcium bicarbonate in the spherical air bag is heated and decomposed by continuous mutual friction between the contact circular plate and the spherical air bag, the spherical air bag is continuously expanded by mutual friction between the contact circular plate and quartz sand powder, the contact area between the deformed rubber bag and the soil after the deformed rubber bag is overturned is increased, thereby effectively relieving the sinking of the embedded pile.
Description
Technical Field
The invention relates to the technical field of embedded pile reinforcement, in particular to a concrete embedded pile for reinforcing a soft foundation.
Background
The concrete cast-in-place pile is a pile formed by forming a hole in place and pouring concrete or reinforced concrete, and the following are commonly used: the method comprises the following steps of drilling a bored pile, forming holes in situ by using a spiral drilling machine, a submersible drilling machine and the like, pouring concrete to form the pile, wherein no vibration and no soil squeezing are generated during construction, the settlement of the pile is slightly large, the spiral drilling machine is suitable for cohesive soil, sandy soil, artificial filling soil and the like above the underground water level, drilled soil blocks ascend along spiral blades on a drill rod to the outside of a discharge hole, the hole diameter is about 300mm, and the drilling depth is 8-12 m; the prepared mud is injected into sandy soil for drilling, the drilled soil scraps are circularly removed by using the mud, the hole is cleaned after the drilled soil scraps are drilled to the required depth so as to remove the soil scraps sinking at the bottom of the hole, the settling amount of the pile is reduced, the large-diameter cast-in-situ bored pile which is popularized and applied in large-scale projects such as high-rise buildings, bridges and the like is constructed by the method, the pile diameter is more than 1m, the bottom of the pile can be expanded, and the bearing capacity of a single pile can reach thousands of tons.
Sinking a pipe and pouring a pile: the steel pipe with reinforced concrete pile shoe (pile tip) or valve type pile shoe is sunk into the soil by hammering or vibration, then the concrete is poured and the pipe is drawn out at the same time to form pile, the pipe-sinking and pipe-drawing person is called hammering poured pile, the pipe-sinking and pipe-drawing person is called vibrating poured pile, the method can produce pile easily, and the defects of pile breaking, necking, foot-hanging pile, pile shoe water-feeding and mud-feeding are produced, and in the course of construction, the inspection and timely treatment are taken care of, and in addition, the explosive is used to make the bottom of pile hole form expanded head to increase bearing capacity.
At present, concrete embedded pile is pre-buried in soft soil for a long time, and the phenomenon of subsiding may appear, therefore among the prior art, can set up extension plate or extension muscle around the embedded pile usually to increase the atress area between embedded pile and the soil, thereby can alleviate the embedded pile and subside, but increased the landfill time of embedded pile, reduced technical staff's work efficiency.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a concrete embedded pile for reinforcing a soft foundation, which can embed the embedded pile in soft soil in advance, pour concrete with temperature into a flow guide hole, enable the concrete to enter a built-in cavity and then contact with a cylindrical air bag, enable ammonium bicarbonate powder in the cylindrical air bag to be heated, decomposed and expanded, enable the air pressure at the lower side of the cylindrical air bag to be increased, enable a deformed rubber bag to be extruded and reduced, enable a pre-sealing film to crack, enable the concrete to be continuously poured into the lower side of the cylindrical air bag, enable the deformed rubber bag to be extruded towards the outer side under the resetting action of an elastic telescopic rod, enable the calcium bicarbonate in the spherical air bag to be heated and decomposed by continuous mutual friction of contact with the spherical air bag in the overturning process of the deformed rubber bag, and through mutual friction between the spherical air bag and the quartz sand powder, the spherical air bag continuously expands, the contact area between the deformed rubber bag and soil after the deformation rubber bag is turned over is increased, and therefore sinking of the pre-buried pile can be effectively relieved.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A concrete pre-buried pile for reinforcing a soft foundation comprises a pre-buried pile body, wherein a built-in cavity is formed in the pre-buried pile body in a chiseled mode, a connecting ring is fixedly connected to the inner wall of the built-in cavity, a plurality of uniformly distributed through holes are formed in the upper end of the connecting ring, a cylindrical air bag is fixedly connected to the inner wall of the connecting ring and filled with ammonium bicarbonate powder, a pair of strip-shaped holes are formed in the inner wall of the built-in cavity, a deformation rubber bag and a pre-sealing film are fixedly connected to the inner wall of each strip-shaped hole, the deformation rubber bag is located in the built-in cavity, the pre-sealing film is located on the outer side of the deformation rubber bag, carbon dioxide gas is filled between the pre-sealing film and the deformation rubber bag, a vertical connecting rod is fixedly connected to the inner bottom end of the built-in cavity, a pair of elastic telescopic rods is fixedly connected to the outer end, the utility model discloses a concrete filling machine, including horizontal connecting rod, elastic telescopic rod, guide hole, cylindrical gasbag, water jacket, water.
Further, the spherical groove that has a plurality of evenly distributed is dug to deformation rubber bag inner wall, the spherical inslot internal rotation is connected with spherical gasbag, be equipped with the glass ball in the spherical gasbag, spherical gasbag outer end is dug has a plurality of evenly distributed's second and is broken groove in advance, when atmospheric pressure increases to a definite value, makes deformation rubber bag receive the extrusion and dwindles to make the membrane of closing in advance split because inside atmospheric pressure is too big, thereby make the concrete continuously irritate into cylindrical gasbag downside, and under the reset action of elastic telescopic rod, make deformation rubber bag extrude towards the outside, until deformation rubber bag upset outside the pre-buried stake.
Further, a plurality of evenly distributed's of transverse connection pole outer end fixedly connected with side connecting rod, the one end excavation that transverse connection pole was kept away from to the side connecting rod has the groove of accomodating, it is equipped with the inserted bar to accomodate the inslot interpolation, the inserted bar with accomodate fixedly connected with compression spring between the inslot bottom, compression spring's one end fixedly connected with contact plectane is kept away from to the inserted bar, at the in-process of deformation rubber bag upset, through the continuous looks friction of contact plectane and spherical gasbag, can produce the heat to make the calcium bicarbonate in the spherical gasbag decompose and generate carbon dioxide and calcium carbonate, and through its and the looks mutual friction between the quartz sand powder, can improve heat production efficiency, make spherical gasbag last inflation, improve the contact area of the deformation rubber bag upset back of finishing with soil, thereby can effectually alleviate sinking of pre-buried stake.
Furthermore, a guide hole is drilled in the upper end of the embedded pile and communicated with the built-in cavity, a polishing layer is arranged on the inner wall of the guide hole, concrete with heat can be conveniently injected into the built-in cavity through the guide hole, and the guide hole is not easily blocked when the concrete is injected through the polishing layer arranged on the inner wall of the guide hole.
Further, a pair of limiting baffle plates which are symmetrical about the cylindrical air bag are fixedly connected between the inner walls of the built-in cavity, the limiting baffle plates are located on the upper side of the cylindrical air bag, and the limiting baffle plates are arranged to limit the cylindrical air bag when the cylindrical air bag expands, so that the cylindrical air bag is not easy to expand upwards, and the concrete can be injected into the limiting baffle plates difficultly.
Furthermore, the upper end of the vertical connecting rod is fixedly connected with an upper conical pricker which is positioned at the lower side of the cylindrical air bag, and the upper conical pricker which expands downwards can be conveniently broken through by arranging the upper conical pricker, so that the built-in cavity can be filled with concrete.
Furthermore, the spherical air bag is filled with calcium bicarbonate powder and quartz sand powder, the volume mixing ratio of the calcium bicarbonate powder to the quartz sand powder is 1:1, the mutual friction effect between particles can be improved by arranging the calcium bicarbonate powder and the quartz sand powder, and the decomposition of the calcium bicarbonate powder can be promoted.
Further, accomodate outer fender ring of inslot wall fixedly connected with, keep off the ring in the inserted bar outer end fixedly connected with, the inside equal fixedly connected with magnet piece of side connecting rod and inserted bar, two the magnet piece repels each other, keeps off ring and outer fender ring in through setting up, can be so that the inserted bar with accomodate the difficult separation of groove, inside magnet piece through setting up mutual repulsion is at side connecting rod and inserted bar, can be so that contact plectane and spherical gasbag contact inseparabler.
Furthermore, a friction pad is fixedly connected to one end, far away from the inserted rod, of the contact circular plate, anti-skid grains are carved on one end, far away from the contact circular plate, of the friction pad, and the friction pad can be fully rubbed with the spherical air bag by the aid of the friction pad and the anti-skid grains arranged on the surface of the friction pad.
A construction method of a concrete embedded pile for reinforcing a soft foundation comprises the following steps:
s1, after the embedded pile is embedded in soft soil, pouring concrete which is just stirred and has a certain temperature into the built-in cavity through the flow guide hole, enabling the concrete to contact the cylindrical air bag after entering the built-in cavity, and enabling part of the concrete to enter the side of the cylindrical air bag through the through hole, so that ammonium bicarbonate powder in the cylindrical air bag is heated and decomposed to generate ammonia and carbon dioxide, and the cylindrical air bag is rapidly expanded, so that the air pressure on the lower side of the cylindrical air bag is increased;
s2, when the air pressure is increased to a certain value, the deformed rubber bag is extruded and shrunk, so that the pre-sealed film cracks due to overlarge internal air pressure, concrete is continuously poured into the lower side of the cylindrical air bag, and the deformed rubber bag is extruded towards the outer side under the reset action of the elastic telescopic rod until the deformed rubber bag is turned over to the outer side of the embedded pile;
s3, in the process of the upset of deformation rubber bag, through the lasting looks mutual friction of contact plectane and spherical gasbag, can produce the heat, thereby make the calcium bicarbonate in the spherical gasbag decompose and generate carbon dioxide and calcium carbonate, and through its and the mutual friction between the quartz sand powder, can improve heat production efficiency, make the spherical gasbag last inflation, improve the deformation rubber bag and overturn the area of contact of finishing back and soil, thereby can effectually alleviate sinking of pre-buried stake.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
according to the scheme, the embedded piles are embedded in soft soil, concrete with temperature is poured into the flow guide holes, the concrete is in contact with the cylindrical air bag after entering the built-in cavity, ammonium bicarbonate powder in the cylindrical air bag is heated, decomposed and expanded, the air pressure on the lower side of the cylindrical air bag is increased, the deformed rubber bag is extruded and reduced, the pre-sealed film is cracked, the concrete is continuously poured into the lower side of the cylindrical air bag, the deformed rubber bag is extruded towards the outer side under the reset action of the elastic telescopic rod, and in the overturning process of the deformed rubber bag, the calcium bicarbonate in the spherical air bag is heated and decomposed and is continuously rubbed with the spherical air bag through the contact circular plate, the spherical air bag is continuously expanded through mutual friction between the contact circular plate and the quartz sand powder, and the contact area between the deformed rubber bag and the soil after overturning is finished is improved, thereby effectively relieving the sinking of the embedded pile.
Drawings
FIG. 1 is a cross-sectional view of the entirety of the present invention;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of the structure at B in FIG. 2;
FIG. 4 is a cross-sectional view of the present invention after reinforcement has been completed;
fig. 5 is a schematic structural diagram at C in fig. 4.
The reference numbers in the figures illustrate:
the pile comprises a pre-buried pile 1, a built-in cavity 2, a connecting ring 3, a through hole 301, a cylindrical air bag 4, a strip-shaped hole 5, a deformation rubber bag 6, a pre-closed film 7, a vertical connecting rod 8, an elastic telescopic rod 9, a transverse connecting rod 10, a side conical thorn 11, a first pre-breaking groove 12, a spherical groove 13, a spherical air bag 14, a glass ball 15, a second pre-breaking groove 16, a side connecting rod 17, a storage groove 18, an insertion rod 19, a compression spring 20, a contact circular plate 21, a diversion hole 22, a limit baffle 23, a conical thorn 24 and a friction pad 25.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-3, a concrete pre-buried pile for reinforcing a soft foundation comprises a pre-buried pile 1 and a pre-buried pile 1, wherein a built-in cavity 2 is formed in the pre-buried pile 1, a connecting ring 3 is fixedly connected to the inner wall of the built-in cavity 2, a plurality of uniformly distributed through holes 301 are formed in the upper end of the connecting ring 3, a cylindrical air bag 4 is fixedly connected to the inner wall of the connecting ring 3, ammonium bicarbonate powder is filled in the cylindrical air bag 4, a pair of strip holes 5 are formed in the inner wall of the built-in cavity 2, a deformable rubber bag 6 and a pre-sealed film 7 are fixedly connected to the inner wall of each strip hole 5, the deformable rubber bag 6 is located in the built-in cavity 2, the pre-sealed film 7 is located outside the deformable rubber bag 6, carbon dioxide gas is filled between the pre-sealed film 7 and the deformable rubber bag 6, a vertical connecting rod 8 is fixedly connected to the inner, the elastic expansion link 9 is in a compressed state in the embedded pile 1, one end of each of the two elastic expansion links 9 far away from each other is fixedly connected with a transverse connecting rod 10, the transverse connecting rods 10 penetrate through the deformed rubber bag 6 and are fixedly connected with the deformed rubber bag 6, one end of each transverse connecting rod 10 far away from the corresponding elastic expansion link 9 is fixedly connected with a side conical thorn 11, the outer end of the pre-sealing film 7 is provided with a plurality of first pre-breaking grooves 12 which are uniformly distributed, after the embedded pile 1 is embedded in soft soil, concrete which is just stirred and has a certain temperature is filled into the built-in cavity 2 through the diversion holes 22, so that the concrete enters the built-in cavity 2 and then contacts the cylindrical air bag 4, and part of the concrete enters the cylindrical air bag 4 through the through holes 301, so that ammonium bicarbonate powder in the cylindrical air bag 4 is heated and decomposed to generate ammonia gas and carbon dioxide, thereby causing the cylindrical balloon 4 to be rapidly inflated and thus causing the air pressure on the lower side of the cylindrical balloon 4 to be increased.
Please refer to fig. 3, the inner wall of the deformable rubber bag 6 is provided with a plurality of uniformly distributed spherical grooves 13, the spherical grooves 13 are rotatably connected with a spherical air bag 14, the spherical air bag 14 is internally provided with a glass ball 15, the outer end of the spherical air bag 14 is provided with a plurality of uniformly distributed second pre-breaking grooves 16, when the air pressure is increased to a certain value, the deformable rubber bag 6 is extruded and reduced, so that the pre-sealing film 7 is cracked due to the excessive internal air pressure, so that the concrete is continuously poured into the lower side of the cylindrical air bag 4, and under the resetting action of the elastic telescopic rod 9, the deformable rubber bag 6 is extruded towards the outer side until the deformable rubber bag 6 is turned over to the outside of the pre-buried pile 1.
Referring to fig. 5, a plurality of evenly distributed side connecting rods 17 are fixedly connected to the outer ends of the transverse connecting rods 10, a receiving groove 18 is cut at one end of the side connecting rod 17 away from the transverse connecting rod 10, an inserting rod 19 is inserted into the receiving groove 18, a compression spring 20 is fixedly connected between the inserting rod 19 and the inner bottom end of the receiving groove 18, a contact circular plate 21 is fixedly connected to one end of the inserting rod 19 away from the compression spring 20, during the overturning of the deformable rubber bladder 6, heat can be generated by the continuous mutual friction of the contact circular plate 21 and the spherical air bladder 14, so that calcium bicarbonate in the spherical air bag 14 is decomposed to generate carbon dioxide and calcium carbonate, and through mutual friction between the calcium carbonate and the quartz sand powder, can improve heat production efficiency for 14 lasting expansions of spherical gasbag improve the area of contact with soil after the upset of deformation rubber bag 6 finishes, thereby can effectually alleviate sinking of pre-buried stake 1.
Referring to fig. 1 and 4, the upper end of the pre-buried pile 1 is drilled with a diversion hole 22, the diversion hole 22 is communicated with the built-in cavity 2, the inner wall of the diversion hole 22 is provided with a polished layer, concrete with heat can be conveniently injected into the built-in cavity 2 by arranging the diversion hole 22, the inner wall of the diversion hole 22 is provided with the polished layer, the diversion hole 22 can not be easily blocked when the concrete is injected, a pair of limit baffles 23 which are symmetrical relative to the cylindrical air bag 4 is fixedly connected between the inner walls of the built-in cavity 2, the limit baffles 23 are positioned on the upper side of the cylindrical air bag 4, the cylindrical air bag 4 can be limited by arranging the limit baffles 23 when the cylindrical air bag 4 expands, so that the cylindrical air bag 4 is not easily expanded upwards, and the concrete can not be easily injected, the upper end of the vertical connecting rod 8 is fixedly connected with an upper conical puncture head 24, the upper conical puncture head 24 is positioned on, by arranging the upper conical stabs 24, the upper conical stabs 24 which expand downwards can be conveniently broken, so that the built-in cavity 2 can be filled with concrete.
Referring to fig. 2-5, the spherical air bag 14 is filled with calcium bicarbonate powder and quartz sand powder, the volume mixing ratio of the calcium bicarbonate powder to the quartz sand powder is 1:1, the mutual friction between particles can be improved by arranging the calcium bicarbonate powder and the quartz sand powder, the decomposition of the calcium bicarbonate powder can be promoted, the inner wall of the accommodating groove 18 is fixedly connected with an outer baffle ring, the outer end of the inserted link 19 is fixedly connected with an inner baffle ring, the inner parts of the side connecting link 17 and the inserted link 19 are fixedly connected with magnet blocks, the two magnet blocks repel each other, the inserted link 19 and the accommodating groove 18 are not easily separated by arranging the inner baffle ring and the outer baffle ring, the contact circular plate 21 can be more closely contacted with the spherical air bag 14 by arranging the mutually repelling magnet blocks inside the side connecting link 17 and the inserted link 19, the friction pad 25 is fixedly connected to one end of the contact circular plate 21 far away from the inserted link 19, the friction pad 25 is engraved with anti-slip lines on the end away from the contact circular plate 21, and the friction pad 25 can be sufficiently rubbed with the spherical airbag 14 by providing the friction pad 25 and the anti-slip lines on the surface thereof.
A construction method of a concrete embedded pile for reinforcing a soft foundation comprises the following steps:
s1, after the embedded pile 1 is embedded in soft soil, pouring concrete which is just stirred and has a certain temperature into the built-in cavity 2 through the diversion hole 22, enabling the concrete to contact the cylindrical air bag 4 after entering the built-in cavity 2, and enabling a part of the concrete to enter the side of the cylindrical air bag 4 through the through hole 301, so that ammonium bicarbonate powder in the cylindrical air bag 4 is heated and decomposed to generate ammonia gas and carbon dioxide, and the cylindrical air bag 4 is rapidly expanded, so that the air pressure on the lower side of the cylindrical air bag 4 is increased;
s2, when the air pressure is increased to a certain value, the deformed rubber bag 6 is extruded and shrunk, so that the pre-sealing film 7 cracks due to overlarge internal air pressure, concrete is continuously poured into the lower side of the cylindrical air bag 4, and the deformed rubber bag 6 is extruded towards the outer side under the reset action of the elastic telescopic rod 9 until the deformed rubber bag 6 is turned over to the outer side of the embedded pile 1;
s3, in the process of the upset of deformation rubber bag 6, through the lasting looks mutual friction of contact plectane 21 with spherical gasbag 14, can produce the heat, thereby make the calcium bicarbonate in the spherical gasbag 14 decompose and generate carbon dioxide and calcium carbonate, and through mutual friction between it and the quartz sand powder, can improve heat production efficiency, make spherical gasbag 14 last inflation, improve the area of contact with soil after the upset of deformation rubber bag 6 finishes, thereby can effectually alleviate sinking of pre-buried pile 1.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a soft ground consolidates uses concrete embedded pile, includes embedded pile (1), its characterized in that: the pile comprises a pre-buried pile (1), wherein a built-in cavity (2) is formed in the pre-buried pile (1), a connecting ring (3) is fixedly connected to the inner wall of the built-in cavity (2), a plurality of uniformly distributed through holes (301) are formed in the upper end of the connecting ring (3), a cylindrical air bag (4) is fixedly connected to the inner wall of the connecting ring (3), ammonium bicarbonate powder is filled in the cylindrical air bag (4), a pair of strip-shaped holes (5) are formed in the inner wall of the built-in cavity (2), a deformation rubber bag (6) and a pre-closed film (7) are fixedly connected to the inner wall of each strip-shaped hole (5), the deformation rubber bag (6) is located in the built-in cavity (2), the pre-closed film (7) is located on the outer side of the deformation rubber bag (6), carbon dioxide gas is filled between the pre-closed film (7) and the deformation rubber bag (6), and a vertical connecting rod (8) is fixedly, vertical connecting rod (8) outer end fixedly connected with a pair of elastic telescopic rod (9), two the equal fixedly connected with transverse connection pole (10) of one end that elastic telescopic rod (9) kept away from each other, transverse connection pole (10) run through deformation rubber bag (6) and with deformation rubber bag (6) fixed connection, the one end fixedly connected with side toper thorn head (11) of elastic telescopic rod (9) are kept away from in transverse connection pole (10), pre-seal membrane (7) outer end is excavated first pre-breaking groove (12) that have a plurality of evenly distributed.
2. The concrete embedded pile for soft foundation reinforcement according to claim 1, wherein: spherical groove (13) that deformation rubber bag (6) inner wall was excavated there are a plurality of evenly distributed, spherical groove (13) internal rotation is connected with spherical gasbag (14), be equipped with glass ball (15) in spherical gasbag (14), spherical gasbag (14) outer end is excavated second that has a plurality of evenly distributed and is disconnected groove (16) in advance.
3. The concrete embedded pile for soft foundation reinforcement according to claim 1, wherein: horizontal connecting rod (10) outer end fixedly connected with a plurality of evenly distributed's side connecting rod (17), the one end of keeping away from horizontal connecting rod (10) in side connecting rod (17) is opened and is dug and has been taken in groove (18), it is equipped with inserted bar (19) to take in groove (18) interpolation, fixedly connected with compression spring (20) between inserted bar (19) and the interior bottom end of taking in groove (18), compression spring (20)'s one end fixedly connected with contact plectane (21) is kept away from in inserted bar (19).
4. The concrete embedded pile for soft foundation reinforcement according to claim 1, wherein: a guide hole (22) is drilled at the upper end of the embedded pile (1), the guide hole (22) is communicated with the built-in cavity (2), and a polishing layer is arranged on the inner wall of the guide hole (22).
5. The concrete embedded pile for soft foundation reinforcement according to claim 1, wherein: a pair of limiting baffles (23) which are symmetrical about the cylindrical air bag (4) is fixedly connected between the inner walls of the built-in cavity (2), and the limiting baffles (23) are positioned on the upper side of the cylindrical air bag (4).
6. The concrete embedded pile for soft foundation reinforcement according to claim 1, wherein: the upper end of the vertical connecting rod (8) is fixedly connected with an upper conical puncture head (24), and the upper conical puncture head (24) is positioned on the lower side of the cylindrical air bag (4).
7. The concrete embedded pile for soft foundation reinforcement according to claim 2, wherein: the spherical air bag (14) is filled with calcium bicarbonate powder and quartz sand powder, and the volume mixing ratio of the calcium bicarbonate powder to the quartz sand powder is 1: 1.
8. The concrete embedded pile for soft foundation reinforcement according to claim 3, wherein: accomodate groove (18) inner wall fixedly connected with and keep off the ring outward, keep off the ring in inserted bar (19) outer end fixedly connected with, the equal fixedly connected with magnet piece in side connecting rod (17) and inserted bar (19) inside, two the magnet piece is mutually exclusive.
9. The concrete embedded pile for soft foundation reinforcement according to claim 3, wherein: one end, far away from inserted bar (19), of contact plectane (21) is fixedly connected with friction pad (25), the one end that contact plectane (21) was kept away from in friction pad (25) is carved with anti-skidding line.
10. A construction method of the concrete embedded pile for soft foundation reinforcement according to any one of claims 1 to 9, characterized in that: the method comprises the following steps:
s1, after the embedded pile (1) is embedded in soft soil, concrete which is just stirred and has a certain temperature is poured into the built-in cavity (2) through the diversion hole (22), so that the concrete enters the built-in cavity (2) and then contacts the cylindrical air bag (4), and part of the concrete enters the side of the cylindrical air bag (4) through the through hole (301), so that ammonium bicarbonate powder in the cylindrical air bag (4) is heated and decomposed to generate ammonia gas and carbon dioxide, so that the cylindrical air bag (4) is rapidly expanded, and the air pressure on the lower side of the cylindrical air bag (4) is increased;
s2, when the air pressure is increased to a certain value, the deformed rubber bag (6) is extruded and shrunk, so that the pre-sealing film (7) cracks due to overlarge internal air pressure, the concrete is continuously poured into the lower side of the cylindrical air bag (4), and under the reset action of the elastic telescopic rod (9), the deformed rubber bag (6) is extruded towards the outer side until the deformed rubber bag (6) is turned to the outer side of the pre-buried pile (1);
s3, in the process of deformation rubber bag (6) upset, through the lasting looks mutual friction of contact plectane (21) and spherical gasbag (14), can produce the heat, thereby make the calcium bicarbonate in spherical gasbag (14) decompose and generate carbon dioxide and calcium carbonate, and through mutual friction between it and the quartz sand powder, can improve heat production efficiency, make spherical gasbag (14) last inflation, improve the area of contact with soil after deformation rubber bag (6) upset finishes, thereby can effectually alleviate sinking of pre-buried stake (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010250583.9A CN111424655B (en) | 2020-04-01 | 2020-04-01 | Concrete embedded pile for reinforcing soft foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010250583.9A CN111424655B (en) | 2020-04-01 | 2020-04-01 | Concrete embedded pile for reinforcing soft foundation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111424655A CN111424655A (en) | 2020-07-17 |
| CN111424655B true CN111424655B (en) | 2021-05-14 |
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| CN112064619A (en) * | 2020-08-05 | 2020-12-11 | 隋国刚 | Concrete reinforcing column for soft foundation road |
| CN112195954B (en) * | 2020-09-08 | 2021-12-10 | 上海民航新时代机场设计研究院有限公司 | Reinforcing pile for wetland soft soil construction and installation method |
| CN112144524B (en) * | 2020-10-19 | 2021-12-21 | 深圳市华地岩土工程有限公司 | Self-extension concrete pile consolidates and uses pre-buried section of thick bamboo |
| CN112979127A (en) * | 2021-03-02 | 2021-06-18 | 北京敦益科技有限公司 | Sludge treatment device and treatment method thereof |
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