CN114411679B - Deep silt foundation treatment device and method thereof - Google Patents
Deep silt foundation treatment device and method thereof Download PDFInfo
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- CN114411679B CN114411679B CN202210122586.3A CN202210122586A CN114411679B CN 114411679 B CN114411679 B CN 114411679B CN 202210122586 A CN202210122586 A CN 202210122586A CN 114411679 B CN114411679 B CN 114411679B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
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Abstract
The invention discloses a deep silt foundation treatment device and a method thereof in the field of constructional engineering, wherein the device comprises vertical piles, the length of each vertical pile is 7-4 m according to the treatment depth, the diameter of each pile head is not less than 10cm, and the interval row distance is 30cm; a transverse pile; arranging 1-2 layers of transverse piles at the end heads of the vertical piles, wherein the diameters of the pile heads are not smaller than 10cm, the spacing is 40cm, and the piles are distributed according to horizontal bidirectional arrangement; a pile top compaction layer; squeezing and silting the pile top within 30cm thickness by adopting weathered materials or stone blocks to form a pile end stress body; a concrete cushion layer; and the upper part of the compaction layer adopts a concrete cushion layer with the thickness of 20cm, and the gaps between the horizontal wood piles are backfilled with concrete to form a continuous and complete foundation leveling layer. The invention is used for the deep silt foundation, can greatly reduce the difficulty and cost of pile foundation treatment, has simple and convenient construction and low cost, and improves the efficiency of pile foundation treatment.
Description
Technical Field
The invention belongs to the field of constructional engineering, and particularly relates to a deep silt foundation treatment device and a method thereof.
Background
Along with the continuous development of water environment ecological management, besides biological landscape measures, some infrastructure matched with construction needs to be completed on deep silt foundations such as lake sides, river sides, sea sides and the like, but at present, no mature technology exists in the country for silt foundation treatment, and the cost is high and the difficulty is high in the aspect of silt foundation treatment. The invention combines project construction and a soil method of local common people, and provides a wood pile foundation treatment technology based on a pile foundation theory, which can greatly reduce the difficulty and cost of pile foundation treatment by using a deep silt foundation.
Disclosure of Invention
The invention aims to provide a deep silt foundation treatment device and a method thereof, which are used for solving the problems of the prior art in the background art.
In order to achieve the above object, the present invention provides the following technical solutions; a deep silt foundation treatment device is characterized in that; comprising
The length of the vertical pile is 7-4 m according to the treatment depth, the diameter of the pile head is not less than 10cm, and the interval row distance is 30cm;
a transverse pile; arranging 1-2 layers of transverse piles at the end heads of the vertical piles, wherein the diameters of the pile heads are not smaller than 10cm, the spacing is 40cm, and the piles are distributed according to horizontal bidirectional arrangement;
a pile top compaction layer; squeezing and silting the pile top within 30cm thickness by adopting weathered materials or stone blocks to form a pile end stress body;
a concrete cushion layer; and the upper part of the compaction layer adopts a concrete cushion layer with the thickness of 20cm, and the gaps between the horizontal wood piles are backfilled with concrete to form a continuous and complete foundation leveling layer.
As a further scheme of the invention, the vertical pile is hollow, the bottom end of the vertical pile is conical, a plurality of groups of penetrating units are arranged on the side wall of the vertical pile, and the groups of penetrating units are arranged at intervals along the length direction of the vertical pile; the penetrating unit comprises penetrating grooves penetrating through the side walls of the vertical piles, the penetrating grooves are arranged at intervals along the circumferential direction of the vertical piles, and external sludge enters the vertical piles through the penetrating grooves.
As a further scheme of the invention, the penetrating groove is provided with a soil digging unit, and the soil digging unit is used for assisting external sludge to enter the vertical pile when the vertical pile is inserted into the sludge.
As a further scheme of the invention, the soil digging unit comprises a cross-shaped soil digging plate rotatably arranged on the inner wall of the through groove, and the middle part of the soil digging plate is rotatably arranged on the fixed shaft; the fixed shaft is fixedly arranged in the through groove and connected with two opposite inner walls of the through groove; the cross-shaped soil digging plate is divided into a first plate, a second plate, a third plate and a fourth plate along the clockwise direction, the first plate is positioned at the highest position of the soil digging plate, and the first plate and the third plate seal the through groove; the vertical pile is internally and coaxially provided with a moving rod for driving the soil digging plate to rotate, the moving rod is vertically and slidably arranged in the vertical pile along the extension direction of the vertical pile, a circular ring is fixedly arranged on the moving rod, and the circular ring is hinged with the second plate through a connecting rod; and a limiting ring used for limiting the horizontal movement of the moving rod is fixedly arranged on the inner wall of the vertical pile, and the limiting ring is in sliding connection with the moving rod.
As a further scheme of the invention, a reinforcing rib is connected between the third plate and the fourth plate, and the reinforcing rib, the third plate and the fourth plate form an arrow part.
As a further scheme of the invention, the movable rod is a percolating pipe, the movable rod is hollow, the bottom end of the movable rod is sealed, and the top end of the movable rod is externally connected with a water pumping mechanism.
The invention also provides a method for treating the deep silt foundation, which mainly comprises the following steps of;
S1, performing S1; removing soil containing plant root diameters and the like on the foundation surface of the building, wherein the thickness is generally 30-50 cm;
s2, performing S2; inserting the prepared vertical piles into sludge by manually matching with a shovel of an excavator, arranging the vertical piles according to the requirement of 30cm in row spacing, and constructing the outer side firstly and then ensuring the sludge squeezing effect from outside to inside when inserting the vertical piles;
s3, performing S3; throwing and filling wind-melting materials or block stones to squeeze silts, forming a siltation squeezing layer in the range of 30cm of the pile top, and leveling the site;
S4, performing S4; horizontally placing the transverse piles, wherein the distance between the transverse piles is 40cm, leveling the transverse piles by cushion concrete, and relatively fixing the transverse piles after the concrete is solidified;
s5, performing S5; pouring a concrete cushion layer, detecting bearing capacity, and constructing a building after the detection is finished and the requirements are met.
Compared with the prior art, the invention has the beneficial effects that;
1. The invention comprises a vertical and a horizontal wood pile structures, and foundation foundations formed by the upper parts of the wood pile structures after stone throwing and silt squeezing layers are formed, which is beneficial to the stability of low buildings such as bridges, culverts, pump stations and the like, and has good implementation effect. The common wooden piles are adopted to improve the bearing capacity of the deep and thick muddy foundation, so that the advantage of lightness of the wooden piles is effectively utilized, and the requirement of a low building is met. The method has the advantages of simple and easy foundation treatment, convenient construction and low cost.
2. According to the invention, the movable rod is driven to move up and down, so that the soil digging plate is driven to shift sludge around the vertical pile into the vertical pile, on one hand, the overall quality of the vertical pile is increased, and the vertical pile is stable and cannot move horizontally; on the other hand, the vertical piles enable the sludge around to be reduced, friction force of the sludge borne by the vertical piles to be reduced, the vertical piles can be inserted continuously under the assistance of the excavator, so that the depth of the vertical piles inserted into the sludge is increased, the vertical piles can be more stable, and foundation stabilization during subsequent construction is facilitated. And this design simple structure, convenient to use has reduced the construction degree of difficulty.
3. The movable pipe is arranged as the percolating pipe, and the sludge entering the vertical pile contains a large amount of water which can infiltrate into the movable rod. According to the invention, the top end of the movable rod is externally connected with the water pumping mechanism to pump water in the sludge to the ground, so that the water content of the sludge in the inserted part of the vertical pile is reduced, the soil body reinforcing effect of the position is improved, the insertion of the vertical pile is firmer, the foundation stability during subsequent construction is facilitated, the structure is simple, and the use is convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be firmly inserted, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of a silt foundation treatment apparatus of the present invention;
FIG. 2 is a schematic view of the structure of the vertical pile according to the present invention;
FIG. 3 is a half cross-sectional view of a vertical pile according to the present invention;
FIG. 4 is an enlarged view of a portion A of FIG. 3 in accordance with the present invention;
FIG. 5 is an enlarged view of a portion B of FIG. 4 in accordance with the present invention;
fig. 6 is a construction flow chart of the method for treating a muddy foundation according to the present invention.
In the drawings, the list of components represented by the respective reference numerals is as follows;
1-vertical piles, 11-through grooves, 12-soil digging units, 121-soil digging plates, 121-1-first plates, 121-2-second plates, 121-3-third plates, 121-4-fourth plates, 122-fixed shafts, 123-movable rods, 124-circular rings, 125-connecting rods, 126-limiting rings, 127-reinforcing ribs, 128-arrow heads, 2-transverse piles, 3-pile top compaction layers and 4-concrete cushion layers.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 6, a deep silt foundation treatment apparatus is characterized in that; comprising
The length of the vertical pile 1 is 7-4 m according to the treatment depth, the diameter of the pile head is not less than 10cm, and the interval row distance is 30cm;
A transverse pile 2; arranging 1-2 layers of transverse piles at the end heads of the vertical piles, wherein the diameters of the pile heads are not smaller than 10cm, the spacing is 40cm, and the piles are distributed according to horizontal bidirectional arrangement;
a pile top compaction layer 3; squeezing and silting the pile top within 30cm thickness by adopting weathered materials or stone blocks to form a pile end stress body;
a concrete cushion layer 4; the upper part of the compaction layer adopts a concrete cushion layer 4 with the thickness of 20cm, and the gaps between the horizontal wood piles are backfilled with concrete to form a continuous and complete foundation leveling layer.
Along with the continuous development of water environment ecological management, besides biological landscape measures, some infrastructure matched with construction needs to be completed on deep silt foundations such as lake sides, river sides, sea sides and the like, but at present, no mature technology exists in the country for silt foundation treatment, and the cost is high and the difficulty is high in the aspect of silt foundation treatment. The technology for treating the deep silt foundation provided by the invention has the advantages of simple construction and low cost. As shown in figure 1, when the invention works, firstly, soil containing plant root diameter and the like on the basic surface of a building is removed, and the thickness is generally 30-50 cm; then the prepared wood piles are manually dug and inserted into sludge by a digger, and the wood piles are arranged according to the line spacing of 30cm as required; then throwing and filling wind and chemical materials or block stones to squeeze silts, forming a silting layer in the range of 30cm of the pile top, and leveling the field; horizontally placing wood piles after the silt is squeezed, leveling the horizontal wood piles by cushion concrete at a distance of 40cm, and relatively fixing the horizontal wood piles after the concrete is solidified; and finally, pouring a concrete cushion layer 4, detecting bearing capacity, and constructing a building after the detection meets the requirements. It should be noted that when the invention is used for vertical wood piles, the outside needs to be constructed firstly, and then the silt squeezing effect is ensured from outside to inside. The invention comprises a vertical and a horizontal wood pile structures, and foundation foundations formed by the upper parts of the wood pile structures after stone throwing and silt squeezing layers are formed, which is beneficial to the stability of low buildings such as bridges, culverts, pump stations and the like, and has good implementation effect. The common wooden piles are adopted to improve the bearing capacity of the deep and thick muddy foundation, so that the advantage of lightness of the wooden piles is effectively utilized, and the requirement of a low building is met. The method has the advantages of simple and easy foundation treatment, convenient construction and low cost.
As a further scheme of the invention, the vertical pile 1 is hollow, the bottom end of the vertical pile 1 is conical, a plurality of groups of penetrating units are arranged on the side wall of the vertical pile 1, and the penetrating units of each group are arranged at intervals along the length direction of the vertical pile 1; the penetrating unit comprises penetrating grooves 11 penetrating through the side walls of the vertical piles 1, the penetrating grooves 11 are arranged at intervals along the circumference of the vertical piles 1, and external sludge enters the vertical piles 1 through the penetrating grooves 11.
The invention needs to firmly insert the prepared vertical pile 1 into the sludge during construction. As shown in fig. 2, the present invention also provides an embodiment in which the vertical pile 1 is provided in a hollow structure, so that the weight of the vertical pile 1 can be reduced, the material cost can be reduced, and the transportation can be facilitated. When the vertical pile 1 is inserted into the sludge, the vertical pile 1 moves downwards under the action of an external driving mechanism such as an excavator, and the bottom end of the vertical pile 1 is conical, so that the vertical pile 1 is convenient to insert. In the process of inserting the vertical pile 1 into the sludge, because the sludge has fluidity, the outside sludge can enter the vertical pile 1 through the through groove 11, the integral weight of the vertical pile 1 is increased, the vertical pile 1 is not easy to move after being inserted, the vertical pile can be stably inserted into the sludge, and the foundation stability during subsequent construction is facilitated.
As a further scheme of the invention, the through groove 11 is provided with a soil digging unit 12, and the soil digging unit 12 is used for assisting external sludge to enter the vertical pile 1 when the vertical pile 1 is inserted into the sludge.
The prepared vertical pile 1 is required to be inserted into the sludge by matching with the excavator, and the vertical pile 1 is difficult to insert even if the excavator is matched in the construction process because the insertion depth of the vertical pile 1 is deeper. Therefore, as shown in fig. 2 and 3, the present invention further provides a soil-digging mechanism provided at the through-slot 11. When the vertical pile 1 is constructed, the vertical pile 1 moves downwards under the action of an external driving mechanism such as an excavator, and when the vertical pile 1 is difficult to move downwards, the driving mechanism drives the soil digging mechanism to dig sludge around the vertical pile 1 into the vertical pile 1 through the through grooves 11, so that the overall mass of the vertical pile 1 is increased, and the vertical pile 1 is stable and cannot move horizontally; on the other hand, the sludge around the vertical pile 1 is reduced, the friction force of the sludge borne by the vertical pile 1 is reduced, the vertical pile 1 can be continuously checked under the assistance of an excavator, the depth of the vertical pile 1 inserted into the sludge is increased, the vertical pile 1 can be more stable, and the foundation is stable during subsequent construction.
As a further scheme of the invention, the soil digging unit 12 comprises a cross-shaped soil digging plate 121 rotatably mounted on the inner wall of the through groove 11, and the middle part of the soil digging plate 121 is rotatably mounted on a fixed shaft 122; the fixed shaft 122 is fixedly installed in the through groove 11 and is connected with two opposite inner walls of the through groove 11; the cross-shaped soil digging plate 121 is divided into a first plate 121-1, a second plate 121-2, a third plate 121-3 and a fourth plate 121-4 along the clockwise direction, wherein the first plate 121-1 is positioned at the highest position of the soil digging plate 121, and the first plate 121-1 and the third plate 121-3 seal the through groove 11; a moving rod 123 for driving the soil digging plate 121 to rotate is coaxially arranged in the vertical pile 1, the moving rod 123 is vertically and slidably arranged in the vertical pile 1 along the length direction of the vertical pile 1, a circular ring 124 is fixedly arranged on the moving rod 123, and the circular ring 124 is hinged with the second plate 121-2 through a connecting rod 125; and a limiting ring 126 for limiting the horizontal movement of the moving rod 123 is fixedly arranged on the inner wall of the vertical pile 1, and the limiting ring 126 is in sliding connection with the moving rod 123.
As a further aspect of the present invention, a reinforcing rib 127 is connected between the third plate 121-3 and the fourth plate 121-4, and the reinforcing rib 127, the third plate 121-3, and the fourth plate 121-4 form an arrow portion 128.
As shown in fig. 4 and 5, in the construction of the present invention, the vertical pile 1 includes the moving rod 123 which moves downward simultaneously to insert the sludge under the action of the external driving mechanism such as the excavator, and initially, the first plate 121-1 and the third plate 121-3 of the soil digging plate 121 are vertically disposed to jointly close the through slot 11, and the external sludge cannot enter the vertical pile 1 through the through slot 11. As shown in FIG. 5, the arrow part 128 composed of the reinforcing rib 127, the third plate 121-3 and the fourth plate 121-4 in the invention assists the vertical pile 1 to discharge sludge in the process of inserting the vertical pile 1, reduces resistance and facilitates the insertion of the vertical pile 1. The reinforcing ribs 127 in the invention have the function of reinforcing the soil digging plate 121 and prevent the soil digging plate from being deformed and damaged by stress. As the vertical pile 1 is deep, the resistance of the sludge received by the vertical pile 1 becomes large, and when the vertical pile 1 is difficult to continue to be inserted, the moving rod 123 is driven to reciprocate up and down by the driving mechanism. As shown in fig. 4 and 5, the moving rod 123 is forced to move downward, the ring 124 fixed on the moving rod 123 also moves downward, the ring 124 drives the second plate 121-2 to rotate clockwise around the fixed shaft 122 through the connecting rod 125, the soil-digging plate 121 can rotate under the driving of the moving rod 123 because of the mobility of the sludge, the soil-digging plate 121 rotates clockwise, the first plate 121-1 and the third plate 121-3 rotate to open the through slot 11, and the external sludge enters the vertical pile 1 through the through slot 11 due to the mobility of the external sludge. As shown in fig. 5, when the soil penetrating plate 121 rotates, the fourth plate 121-4 and the third plate 121-3 also rotate clockwise to stir the sludge outside between the fourth plate 121-4 and the third plate 121-3 into the vertical pile 1, thereby assisting the outside sludge to flow into the vertical pile 1. Meanwhile, after the sludge enters the vertical pile 1, the sludge automatically subsides downwards and is fully distributed in the vertical pile 1, and the up-and-down movement of the moving rod 123 starts the circular ring 124 to move up and down to compact the sludge, so that the sludge is fully filled in the vertical pile. Thus, sludge around the vertical pile 1 is reduced, friction force to the vertical pile 1 is reduced, and the vertical pile 1 can continue to go deep. Then the moving rod 123 moves upwards under the drive of the driving mechanism, the soil digging plate 121 is reversely reset, and the sludge around the vertical pile 1 is filled into the gap part. After several iterations, the driving mechanism re-drives the vertical pile 1, including the moving rod 123 simultaneously moving down to increase the depth of insertion of the sludge. The invention can increase the insertion depth of the vertical pile 1 and reduce the construction difficulty. According to the invention, after the vertical pile 1 is finally completely inserted, the second plate 121-2 in the soil digging plate 121 is positioned at the uppermost part, and the arrow head 128 is opened, so that the arrow direction of the arrow head 128 is changed from vertical downwards to horizontal, the contact surface between the arrow head 128 and the sludge is increased in the vertical upwards direction, the vertical pile 1 is stably inserted and difficult to move, and the foundation is stable in subsequent construction. According to the invention, the movable rod 123 is driven to move up and down, and the soil digging plate 121 is driven to shift sludge around the vertical pile 1 into the vertical pile 1, so that on one hand, the overall mass of the vertical pile 1 is increased, and the vertical pile 1 is stable and cannot move horizontally; on the other hand, the vertical pile 1 reduces sludge around, friction force of the sludge borne by the vertical pile 1 is reduced, the vertical pile 1 can be inserted continuously under the assistance of the excavator, the depth of the vertical pile 1 inserted into the sludge is increased, the vertical pile is more stable, and foundation stabilization during subsequent construction is facilitated. And this design simple structure, convenient to use has reduced the construction degree of difficulty.
As a further scheme of the present invention, the moving rod 123 is a percolating tube, the moving rod 123 is hollow, the bottom end of the moving rod 123 is sealed, and the top end of the moving rod 123 is externally connected with a water pumping mechanism.
The present invention also provides an embodiment in which the moving rod 123 is provided as a percolating pipe in order to make the vertical pile 1 more stable after the insertion of the sludge, and the sludge entering the vertical pile 1 contains a large amount of water, which percolates into the moving rod 123. Meanwhile, as described above, the ring 124 moves up and down to compact the sludge when the moving rod 123 moves up and down, so that the ring 124 can assist in squeezing water in the sludge into the moving rod 123, thereby promoting the reduction of the water content of the sludge. According to the invention, the top end of the moving rod 123 is externally connected with the water pumping mechanism to pump water in the sludge to the ground, so that the water content of the sludge in the insertion part of the vertical pile 1 is reduced, the soil body reinforcing effect of the position is improved, the insertion of the vertical pile 1 is firmer, the foundation stability in the subsequent construction is facilitated, the structure is simple, and the use is convenient.
The invention also provides a method for treating the deep silt foundation, which mainly comprises the following steps of;
S1, performing S1; removing soil containing plant root diameters and the like on the foundation surface of the building, wherein the thickness is generally 30-50 cm;
S2, performing S2; the prepared vertical piles 1 are manually matched with a shovel of an excavator to be inserted into sludge, the sludge is arranged according to the line spacing of 30cm as required, and when the vertical piles 1 are inserted, the outer sides are firstly constructed, and then the sludge squeezing effect is ensured from outside to inside;
s3, performing S3; throwing and filling wind-melting materials or block stones to squeeze silts, forming a siltation squeezing layer in the range of 30cm of the pile top, and leveling the site;
s4, performing S4; horizontally placing the transverse piles 2, leveling the horizontal piles 2 by cushion concrete at a distance of 40cm, and relatively fixing the transverse piles 2 after the concrete is solidified;
S5, performing S5; and pouring a concrete cushion layer 4, detecting bearing capacity, and constructing a building after the detection is finished and the requirements are met.
Claims (4)
1. A deep silt foundation treatment device is characterized in that; comprising
A vertical pile (1); the length is 7-4 m according to the treatment depth, the diameter of the pile head is not less than 10cm, and the interval row distance is 30cm;
a transverse pile (2); arranging 1-2 layers of transverse piles at the end heads of the vertical piles, wherein the diameters of the pile heads are not smaller than 10cm, the spacing is 40cm, and the piles are distributed according to horizontal bidirectional arrangement;
a pile top compaction layer (3); squeezing and silting the pile top within 30cm thickness by adopting weathered materials or stone blocks to form a pile end stress body;
A concrete cushion layer (4); the upper part of the compaction layer adopts a concrete cushion layer (4) with the thickness of 20cm, and the gaps among the horizontal wood piles are backfilled with concrete to form a continuous and complete foundation leveling layer;
The vertical pile (1) is hollow, the bottom end of the vertical pile (1) is conical, a plurality of groups of penetrating units are arranged on the side wall of the vertical pile (1), and the groups of penetrating units are arranged at intervals along the extending direction of the vertical pile (1); the penetrating unit comprises penetrating grooves (11) penetrating through the side wall of the vertical pile (1), the penetrating grooves (11) are arranged at intervals along the circumferential direction of the vertical pile (1), and external sludge enters the vertical pile (1) through the penetrating grooves (11);
The soil digging unit (12) is arranged on the penetrating groove (11), and the soil digging unit (12) is used for assisting external sludge to enter the vertical pile (1) when the vertical pile (1) is inserted into the sludge;
The digging unit (12) comprises a cross-shaped digging plate (121) rotatably mounted on the inner wall of the through groove (11), and the middle part of the digging plate (121) is rotatably mounted on the fixed shaft (122); the fixed shaft (122) is fixedly arranged in the through groove (11) and is connected with two opposite inner walls of the through groove (11); the cross-shaped digging plate (121) is divided into a first plate (121-1), a second plate (121-2), a third plate (121-3) and a fourth plate (121-4) along the clockwise direction, the first plate (121-1) is positioned at the highest position of the digging plate (121), and the first plate (121-1) and the third plate (121-3) seal the through groove (11); a moving rod (123) for driving the soil digging plate (121) to rotate is coaxially arranged in the vertical pile (1), the moving rod (123) is vertically and slidably arranged in the vertical pile (1) along the extension direction of the vertical pile (1), a circular ring (124) is fixedly arranged on the moving rod (123), and the circular ring (124) is hinged with the second plate (121-2) through a connecting rod (125); and a limiting ring (126) for limiting the horizontal movement of the moving rod (123) is fixedly arranged on the inner wall of the vertical pile (1), and the limiting ring (126) is in sliding connection with the moving rod (123).
2. A deep silt foundation treatment apparatus according to claim 1, wherein: and a reinforcing rib (127) is connected between the third plate (121-3) and the fourth plate (121-4), and the reinforcing rib (127), the third plate (121-3) and the fourth plate (121-4) form an arrow part (128).
3. A deep silt foundation treatment apparatus according to claim 2, wherein: the movable rod (123) is a percolating pipe, the movable rod (123) is hollow, the bottom of the movable rod (123) is sealed, and the top of the movable rod (123) is externally connected with a water pumping mechanism.
4. A method of treating a deep muddy foundation, applicable to the foundation treatment device according to any one of claims 1 to 3, characterized in that: the method mainly comprises the following steps:
s1: removing plant rhizome soil on the surface of a building foundation, wherein the thickness of the plant rhizome soil is generally 30-50 cm;
S2: the prepared vertical piles (1) are manually matched with a shovel of an excavator to be inserted into sludge, the sludge is arranged according to the line spacing of 30cm as required, and when the vertical piles (1) are inserted, the outer sides are firstly constructed, and then the sludge squeezing effect is ensured from outside to inside;
S3: throwing and filling wind and dissolving materials or block stone materials to squeeze and silt, forming a silt squeezing layer in the range of 30cm of the pile top, and leveling the field;
s4: horizontally placing the transverse piles (2) at a distance of 40cm, leveling the horizontal piles (2) by cushion concrete, and relatively fixing the transverse piles (2) after the concrete is solidified;
S5: and pouring a concrete cushion layer (4), detecting bearing capacity, and constructing a building after the detection is finished and the requirements are met.
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| CN202210122586.3A CN114411679B (en) | 2022-02-09 | 2022-02-09 | Deep silt foundation treatment device and method thereof |
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| CN105735240A (en) * | 2016-03-31 | 2016-07-06 | 河海大学 | Vertical stereoscopic drainage device for sludge blowing and filling type reinforcement and using method |
| CN106120699A (en) * | 2016-08-19 | 2016-11-16 | 滁州职业技术学院 | A kind of building composite foundation |
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