CN114411679A - Deep silt foundation treatment device and method - Google Patents
Deep silt foundation treatment device and method Download PDFInfo
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- CN114411679A CN114411679A CN202210122586.3A CN202210122586A CN114411679A CN 114411679 A CN114411679 A CN 114411679A CN 202210122586 A CN202210122586 A CN 202210122586A CN 114411679 A CN114411679 A CN 114411679A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000004575 stone Substances 0.000 claims abstract description 9
- 238000005056 compaction Methods 0.000 claims abstract description 5
- 239000002023 wood Substances 0.000 claims abstract description 5
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 4
- 238000001125 extrusion Methods 0.000 claims abstract description 4
- 239000010802 sludge Substances 0.000 claims description 48
- 230000000149 penetrating effect Effects 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 239000002689 soil Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 5
- 241000196324 Embryophyta Species 0.000 claims description 4
- 235000013290 Sagittaria latifolia Nutrition 0.000 claims description 4
- 238000009435 building construction Methods 0.000 claims description 4
- 235000015246 common arrowhead Nutrition 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000005325 percolation Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 23
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000002349 favourable effect Effects 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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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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- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a deep silt foundation treatment device and a method thereof in the field of constructional engineering, wherein the deep silt foundation treatment device comprises vertical piles, the length of each vertical pile is 7-4 m according to the treatment depth, the diameter of a pile head is not less than 10cm, and the row spacing is 30 cm; transverse piling; arranging 1-2 layers of transverse piles at the end head of the vertical pile, wherein the diameter of the pile head is not less than 10cm, the distance is 40cm, and the piles are distributed in a horizontal bidirectional arrangement manner; a pile top compacted layer; carrying out extrusion and silting on the pile top within 30cm of thickness by adopting weathered materials or stone blocks to form a pile end stress body; a concrete cushion; the upper part of the compaction layer adopts a concrete cushion layer with the thickness of 20cm, and the holes among the horizontal wood piles are backfilled with concrete to form a continuous and complete foundation leveling layer. The invention can greatly reduce the difficulty and cost of pile foundation treatment when being used for the deep silt foundation, the treatment technology 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
With the continuous development of water environment ecological management, besides biological landscape measures, some foundation facilities which are cooperatively built need to be completed on deep silt foundations such as lake, river, seaside and the like, and the silt foundation treatment currently has no mature technology in China, so that the cost and the difficulty in treating the silt foundation are high. The invention combines project construction and local common people's soil method, on the basis of pile foundation theory, provides a wood pile foundation treatment technology, which can greatly reduce the difficulty and cost of pile foundation treatment when used for deep silt foundation, and the treatment technology has simple construction and low cost, and improves the efficiency of pile foundation treatment.
Disclosure of Invention
The invention aims to provide a deep silt foundation treatment device and a method thereof, which aim to solve the problems of the prior art brought forward in the background technology.
In order to achieve the above purpose, the invention provides the following technical scheme; a deep silt foundation treatment device is characterized in that; comprises that
The length of the vertical piles is 7-4 m according to the treatment depth, the diameter of pile heads is not less than 10cm, and the row spacing is 30 cm;
transverse piling; arranging 1-2 layers of transverse piles at the end head of the vertical pile, wherein the diameter of the pile head is not less than 10cm, the distance is 40cm, and the piles are distributed in a horizontal bidirectional arrangement manner;
a pile top compacted layer; carrying out extrusion and silting on the pile top within 30cm of thickness by adopting weathered materials or stone blocks to form a pile end stress body;
a concrete cushion; the upper part of the compaction layer adopts a concrete cushion layer with the thickness of 20cm, and the holes among 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 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 through groove is provided with an excavating unit, and the excavating unit is used for assisting external sludge to enter the interior of the vertical pile when the vertical pile is inserted with sludge.
As a further scheme of the invention, the digging unit comprises a cross-shaped digging plate which is rotatably arranged on the inner wall of the through groove, and the middle part of the digging plate is rotatably arranged on a fixed shaft; the fixed shaft is fixedly arranged in the through groove and is connected with two opposite inner walls of the through groove; the cross-shaped 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 digging plate, and the first plate and the third plate close the through groove; a moving rod for driving the digging plate to rotate is coaxially arranged in the vertical pile, the moving rod is vertically and slidably installed in the vertical pile along the extending direction of the vertical pile, a circular ring is fixedly installed on the moving rod, and the circular ring is hinged to the second plate through a connecting rod; and a limiting ring for limiting the horizontal movement of the moving rod is fixedly mounted on the inner wall of the vertical pile, and the limiting ring is connected with the moving rod in a sliding manner.
As a further aspect of the present 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 head portion.
As a further scheme of the invention, the movable rod is a percolation 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;
s1; removing soil with plant root diameter and the like on the surface of a building foundation, wherein the thickness is generally 30-50 cm;
s2; inserting the prepared vertical piles into silt by using a manual matching excavator digging shovel, arranging the piles according to the line spacing of 30cm as required, and when inserting the vertical piles, constructing the outer side firstly and then from the outside to the inside to ensure the silt squeezing effect;
s3; filling weathered materials or block stones for silt squeezing, forming a silt squeezing layer within 30cm of the pile top, and leveling the field;
s4; horizontally placing transverse piles with the spacing of 40cm, leveling the horizontal transverse piles by using cushion concrete, and fixing the transverse piles relatively after the concrete is solidified;
s5; and pouring a concrete cushion, detecting the bearing capacity, and performing building construction 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 vertical and horizontal timber pile structures, and the foundation formed after the upper part of the timber pile structure is subjected to stone throwing and silt squeezing is favorable for the stability of low buildings such as bridges, culverts, pump stations and the like, and has good implementation effect. The embodiment adopts common timber piles to improve the bearing capacity of the deep silt foundation, and not only effectively utilizes the advantage of lightness of the timber piles, but also meets the requirement of low buildings. The method has the advantages of simple and easy basic treatment, convenient construction and low cost.
2. According to the invention, the movable rod is driven to move up and down, and the digging plate is driven to shift sludge around the vertical pile into the vertical pile, so that on one hand, the integral quality of the vertical pile is increased, and the vertical pile is stable and cannot move horizontally; on the other hand, the vertical pile makes silt all around reduce, and the frictional force of the silt that the vertical pile receives reduces, and the vertical pile can continue to insert down under the assistance of excavator for the depth that the vertical pile inserted silt increases, can be more firm, and the foundation is stable when being favorable to follow-up construction. And the design structure is simple, the use is convenient, and the construction difficulty is reduced.
3. According to the invention, the moving pipe is set as the percolation pipe, sludge entering the vertical pile contains a large amount of water, and water can percolate into the moving rod. According to the invention, the water pumping mechanism is externally connected to the top end of the movable rod to pump water in the sludge to the ground, so that the water content of the sludge at the inserted part of the vertical pile is reduced, the soil body reinforcing effect at the position is improved, the vertical pile is more firmly inserted, 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 used in the embodiments described below will be firmly inserted, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view showing the overall construction of a sludge foundation treatment apparatus according to the present invention;
FIG. 2 is a schematic structural view of a vertical pile of the present invention;
FIG. 3 is a half cross-sectional view of a vertical pile of the present invention;
FIG. 4 is an enlarged view of a portion A of FIG. 3 according to 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 components represented by the respective reference numerals are listed below;
the concrete pile comprises 1-vertical piles, 11-through grooves, 12-digging units, 121-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 technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a deep silt foundation treatment apparatus is characterized in that; comprises that
The length of the vertical pile 1 is selected from 7m to 4m according to the treatment depth, the diameter of the pile head is not less than 10cm, and the row spacing is 30 cm;
a transverse pile 2; arranging 1-2 layers of transverse piles at the end head of the vertical pile, wherein the diameter of the pile head is not less than 10cm, the distance is 40cm, and the piles are distributed in a horizontal bidirectional arrangement manner;
a pile top compacted layer 3; carrying out extrusion and silting on the pile top within 30cm of thickness by adopting weathered materials or stone blocks to form a pile end stress body;
a concrete cushion 4; the upper part of the compaction layer adopts a 20cm thick concrete cushion layer 4, and the holes between the horizontal wood piles are backfilled with concrete to form a continuous and complete basic leveling layer.
With the continuous development of water environment ecological management, besides biological landscape measures, some foundation facilities which are cooperatively built need to be completed on deep silt foundations such as lake, river, seaside and the like, and the silt foundation treatment currently has no mature technology in China, so that the cost and the difficulty in treating the silt foundation are high. The deep silt foundation treatment technology provided by the invention has the advantages of simple construction and low cost. As shown in figure 1, when the invention works, soil containing plant roots and the like on the surface of a building foundation is firstly removed, and the thickness is generally 30-50 cm; then inserting the prepared timber piles into the silt by using a manual matching excavator digging shovel, and arranging the timber piles according to the line spacing of 30cm as required; then, filling weathered materials or rock blocks for silt squeezing, forming a silt squeezing layer within 30cm of the pile top, and leveling the field; horizontally placing the wooden piles after the sludge is squeezed, wherein the distance between every two adjacent wooden piles is 40cm, leveling the horizontal wooden piles by using cushion concrete, and fixing the horizontal wooden piles relatively after the concrete is solidified; and finally, pouring the concrete cushion 4, detecting the bearing capacity, and performing building construction after the detection is finished and the requirements are met. It should be noted that when the vertical timber pile is used, the outer side needs to be constructed firstly, and then the sludge is squeezed from the outside to the inside, so that the sludge squeezing effect is ensured. The invention comprises vertical and horizontal timber pile structures, and the foundation formed after the upper part of the timber pile structure is subjected to stone throwing and silt squeezing is favorable for the stability of low buildings such as bridges, culverts, pump stations and the like, and has good implementation effect. The embodiment adopts common timber piles to improve the bearing capacity of the deep silt foundation, and not only effectively utilizes the advantage of lightness of the timber piles, but also meets the requirement of low buildings. The method has the advantages of simple and easy basic 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 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 circumferential direction of the vertical piles 1, and external sludge enters the vertical piles 1 through the penetrating grooves 11.
The invention needs to stably insert the prepared vertical pile 1 into the sludge during construction. As shown in fig. 2, the present invention also provides an embodiment, and the vertical pile 1 is configured as a hollow structure, so that the weight of the vertical pile 1 can be reduced, the material cost can be reduced, and the transportation is convenient. When the vertical pile 1 is inserted into 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 that the vertical pile 1 is inserted into the sludge, the sludge has fluidity, so that the external sludge enters the vertical pile 1 through the through groove 11, the whole weight of the vertical pile 1 is increased, the vertical pile is not easy to move after being inserted, the vertical pile can be stably inserted into the sludge, and the foundation is stable when the subsequent construction is facilitated.
As a further aspect of the present invention, an excavating unit 12 is disposed on the through groove 11, and the excavating unit 12 is used for assisting external sludge to enter the interior of the vertical pile 1 when the vertical pile 1 is inserted with sludge.
According to the invention, during construction, the prepared vertical pile 1 is required to be inserted into sludge by matching with an excavator shovel, and because the vertical pile 1 is deeper in insertion depth, the vertical pile 1 is difficult to insert even if the excavator is matched in the construction process. Therefore, as shown in fig. 2 and 3, the present invention is further provided with a digging mechanism which is arranged at the through groove 11. During construction, 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 digging mechanism to dig the sludge around the vertical pile 1 into the vertical pile 1 through the through groove 11, 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, silt around the vertical pile 1 reduces, and the frictional force of silt that the vertical pile 1 receives reduces, and the vertical pile 1 can continue to look into down under the assistance of excavator for the depth that the vertical pile 1 inserted silt increases, and can be more firm, and the foundation is stable when being favorable to follow-up construction.
As a further aspect of the present invention, the excavating unit 12 includes a cross-shaped excavating plate 121 rotatably mounted on an inner wall of the through-slot 11, the middle of the excavating plate 121 being rotatably mounted on a 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 located at the highest position of the digging plate 121, and the first plate 121-1 and the third plate 121-3 close the through groove 11; a moving rod 123 for driving the digging plate 121 to rotate is coaxially arranged in the vertical pile 1, the moving rod 123 is vertically and slidably installed in the vertical pile 1 along the length direction of the vertical pile 1, a circular ring 124 is fixedly installed 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 mounted on the inner wall of the vertical pile 1, and the limiting ring 126 is connected with the moving rod 123 in a sliding manner.
As a further scheme of the 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 head part 128.
As shown in figures 4 and 5, during construction, the vertical pile 1 comprises the movable rod 123 which synchronously moves downwards under the action of an external driving mechanism such as an excavator to insert silt, initially, the first plate 121-1 and the third plate 121-3 of the digging plate 121 are vertically arranged to jointly close the through groove 11, and the external silt cannot enter the vertical pile 1 through the through groove 11. As shown in FIG. 5, in the invention, the arrow head 128 composed of the reinforcing rib 127, the third plate 121-3 and the fourth plate 121-4 assists the vertical pile 1 to discharge sludge in the process of inserting the vertical pile 1, so that the resistance is reduced, and the vertical pile 1 can be conveniently inserted. The reinforcing ribs 127 of the present invention also serve to reinforce the earth-moving plate 121 to prevent it from being deformed and damaged by a force. As the vertical pile 1 goes deep, the resistance of the vertical pile 1 to the sludge becomes large, and when the vertical pile 1 is difficult to be inserted further, the driving mechanism drives the movable rod 123 to move up and down in a reciprocating manner. As shown in fig. 4 and 5, the moving rod 123 is forced to move downwards, the circular ring 124 fixed on the moving rod 123 also moves downwards, the circular ring 124 drives the second plate 121-2 to rotate clockwise around the fixed shaft 122 through the connecting rod 125, the excavating plate 121 can rotate under the driving of the moving rod 123 because the sludge has fluidity, the excavating plate 121 rotates clockwise, the first plate 121-1 and the third plate 121-3 rotate to open the through groove 11, and the external sludge can enter the vertical pile 1 through the through groove 11 because of the self-fluidity. As shown in FIG. 5, when the excavating plate 121 rotates, the fourth plate 121-4 and the third plate 121-3 also rotate clockwise to pull external sludge between the fourth plate 121-4 and the third plate 121-3 into the vertical piles 1, thereby assisting the external sludge to flow into the vertical piles 1. Meanwhile, after the sludge enters the vertical piles 1, the sludge can automatically settle downwards and is fully distributed in the vertical piles 1, the circular rings 124 can be started to move up and down by the moving rods 123 moving up and down, and the sludge is compacted, so that the sludge is fully filled in the vertical piles. Therefore, sludge around the vertical piles 1 is reduced, the friction force to the vertical piles 1 is reduced, and the vertical piles 1 can continue to go deep. Then the movable rod 123 is driven by the driving mechanism to move upwards, the digging plate 121 is reversely rotated and reset, and the sludge around the vertical pile 1 is filled to the gap part. After repeated several times, the driving mechanism drives the vertical piles 1 again, including the moving rods 123 to move downwards synchronously to increase the depth of the inserted 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 completely inserted finally, the second plate 121-2 in the digging plate 121 is positioned at the uppermost position, the arrow part 128 is opened, so that the arrow direction of the arrow part 128 is changed from vertical downward to horizontal direction, the contact surface of the arrow part 128 and sludge is increased in the vertical upward direction, the vertical pile 1 is stably inserted and is 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 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, vertical pile 1 makes silt all around reduce, and the frictional force of the silt that vertical pile 1 receives reduces, and vertical pile 1 can continue to be inserted down under the assistance of excavator for vertical pile 1 inserts the degree of depth increase of silt, can be more firm, and the foundation is stable when being favorable to follow-up construction. And the design structure is simple, the use is convenient, and the construction difficulty is reduced.
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, in order to make the vertical pile 1 more stable after inserting the sludge, the present invention sets the movable rod 123 as a percolation pipe, and the sludge entering the vertical pile 1 contains a large amount of moisture, which percolates into the movable 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 assists in squeezing water in the sludge into the moving rod 123, and thus, the water content of the sludge is reduced. According to the invention, the water pumping mechanism is externally connected to the top end of the movable rod 123 to pump water in the sludge to the ground, so that the water content of the sludge at the insertion part of the vertical pile 1 is reduced, the soil body reinforcing effect at the insertion part is improved, the vertical pile 1 is more firmly inserted, the foundation stability during 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;
s1; removing soil with plant root diameter and the like on the surface of a building foundation, wherein the thickness is generally 30-50 cm;
s2; inserting the prepared vertical piles 1 into silt by using a manual matching excavator shovel, arranging the vertical piles 1 according to the line spacing of 30cm, constructing the outer side of each vertical pile 1, and then constructing the outer side of each vertical pile from outside to inside to ensure the silt squeezing effect;
s3; filling weathered materials or block stones for silt squeezing, forming a silt squeezing layer within 30cm of the pile top, and leveling the field;
s4; horizontally placing the transverse piles 2 at an interval of 40cm, leveling the horizontal transverse piles 2 by using cushion concrete, and fixing the transverse piles 2 relatively after the concrete is solidified;
s5; and pouring the concrete cushion 4, detecting the bearing capacity, and performing building construction after the detection is finished and the requirements are met.
Claims (7)
1. A deep silt foundation treatment device is characterized in that; comprises that
A vertical pile (1); the length is selected from 7m to 4m according to the treatment depth, the diameter of the pile head is not less than 10cm, and the row spacing is 30 cm;
a transverse pile (2); arranging 1-2 layers of transverse piles at the end head of the vertical pile, wherein the diameter of the pile head is not less than 10cm, the distance is 40cm, and the piles are distributed in a horizontal bidirectional arrangement manner;
a pile top compacted layer (3); carrying out extrusion and silting on the pile top within 30cm of thickness by adopting weathered materials or stone blocks to form a pile end stress body;
a concrete pad (4); the upper part of the compaction layer adopts a concrete cushion layer (4) with the thickness of 20cm, and the holes among the horizontal wood piles are backfilled with concrete to form a continuous and complete foundation leveling layer.
2. The apparatus for treating a deep muddy foundation as defined in claim 1, wherein; 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 are arranged at intervals along the extending 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 circumferential direction of the vertical piles (1), and external sludge enters the vertical piles (1) through the penetrating grooves (11).
3. The apparatus for treating a deep muddy foundation as defined in claim 2, wherein; an excavating unit (12) is arranged on the through groove (11), and the excavating unit (12) is used for assisting external sludge to enter the vertical pile (1) when the vertical pile (1) is inserted with sludge.
4. A deep muddy foundation treatment apparatus as claimed in claim 3, wherein; 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 a 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 located 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) used for driving the digging plate (121) to rotate is coaxially arranged in the vertical pile (1), the moving rod (123) is vertically installed in the vertical pile (1) in a sliding mode along the extending direction of the vertical pile (1), a circular ring (124) is fixedly installed on the moving rod (123), and the circular ring (124) is hinged to the second plate (121-2) through a connecting rod (125); the limiting ring (126) used for limiting the horizontal movement of the moving rod (123) is fixedly mounted on the inner wall of the vertical pile (1), and the limiting ring (126) is connected with the moving rod (123) in a sliding mode.
5. The apparatus for treating a deep muddy foundation as claimed in claim 4, wherein; 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 head part (128).
6. The apparatus for treating a deep muddy foundation as claimed in claim 5, wherein; the movable rod (123) is a percolation pipe, the movable rod (123) is hollow, the bottom of the movable rod (123) is sealed, and the top end of the movable rod (123) is externally connected with a water pumping mechanism.
7. A method for treating a foundation of deep sludge, which is applied to the foundation treatment device of any one of claims 1 to 6, is characterized in that; the main steps are as follows;
s1; removing soil with plant root diameter and the like on the surface of a building foundation, wherein the thickness is generally 30-50 cm;
s2; inserting the prepared vertical piles (1) into silt by using a manual excavator matched with an excavating shovel, arranging the vertical piles at a line spacing of 30cm according to needs, constructing the outer side of each vertical pile (1), and then constructing the vertical piles from outside to inside to ensure the silt squeezing effect;
s3; filling weathered materials or block stones for silt squeezing, forming a silt squeezing layer within 30cm of the pile top, and leveling the field;
s4; horizontally placing the transverse piles (2) at an interval of 40cm, leveling the horizontal transverse piles (2) by using cushion concrete, and fixing the transverse piles (2) relatively after the concrete is solidified;
s5; and pouring the concrete cushion (4), detecting the bearing capacity, and after the detection is finished, meeting the requirements to carry out building construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210122586.3A CN114411679B (en) | 2022-02-09 | 2022-02-09 | Deep silt foundation treatment device and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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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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| CN114411679A true CN114411679A (en) | 2022-04-29 |
| CN114411679B CN114411679B (en) | 2024-06-14 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060102931A (en) * | 2005-03-25 | 2006-09-28 | 이창남 | Horizontal compacting method of weak soil with filling pulled-out pile hole |
| 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 |
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