CN112962576A - Deep foundation treatment method - Google Patents

Deep foundation treatment method Download PDF

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Publication number
CN112962576A
CN112962576A CN202110174730.3A CN202110174730A CN112962576A CN 112962576 A CN112962576 A CN 112962576A CN 202110174730 A CN202110174730 A CN 202110174730A CN 112962576 A CN112962576 A CN 112962576A
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settling
plate
column
fixed
cement mortar
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CN202110174730.3A
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CN112962576B (en
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麻镇
徐朱丹
来叶华
钱宇
陈晓燕
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Zhejiang Fucheng Construction Group Co ltd
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Zhejiang Fucheng Construction Group Co ltd
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12Consolidating by placing solidifying or pore-filling substances in the soil
    • E02D3/123Consolidating by placing solidifying or pore-filling substances in the soil and compacting the soil
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02Improving by compacting
    • E02D3/08Improving by compacting by inserting stones or lost bodies, e.g. compaction piles

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Road Paving Structures (AREA)

Abstract

The application relates to a deep foundation treatment method, which comprises the following steps: s1, compacting the inner bottom wall of the foundation pit; s2, pouring cement mortar into the foundation pit to form a cement mortar layer; s3, horizontally inserting a plurality of anti-settling plates at positions, located above the cement mortar layer, on the inner side wall of the foundation pit, and laying support plates on the upper surfaces of the anti-settling plates; s4, vertically inserting an anti-settling column into the upper surface of the supporting plate, arranging a supporting assembly for supporting one end of the anti-settling plate, which is positioned in the foundation pit, between the anti-settling plate and the anti-settling column, and arranging a fixing plate for fixing the supporting plate and the anti-settling column between the supporting plate and the anti-settling column; s5, forming a pouring hole in the upper end face of the anti-settling column, and pouring concrete into the pouring hole to form a supporting concrete layer; s6, pouring concrete into the foundation pit to form a reinforced concrete layer fixedly laid on the upper surface of the supporting plate, and fixedly laying a cushion layer on the upper surface of the reinforced concrete layer. This application has the effect that improves the anti-settling capacity after the ground is handled.

Description

Deep foundation treatment method
Technical Field
The application relates to the field of foundation construction, in particular to a deep foundation treatment method.
Background
The foundation refers to the soil or rock mass supporting the foundation under the building, the soil or rock mass bearing the whole load of the building under the foundation is called the foundation, the foundation does not belong to the building component, but has very important function for ensuring the firmness and durability of the building, and is a part of the earth.
The existing deep foundation adopts a dynamic compaction method during treatment, so that the soil in the foundation pit is firmer, and concrete is poured into the foundation pit to form the foundation.
In view of the above-mentioned related art, the inventors considered that there was a defect that the foundation was likely to be settled after a long-term use.
Disclosure of Invention
In order to embody the improvement of the anti-settling capacity after foundation treatment, the application provides a deep foundation treatment method.
The deep foundation treatment method adopts the following technical scheme:
a deep foundation treatment method comprises the following steps:
s1, cleaning a construction site, digging a foundation pit, and compacting the inner bottom wall of the foundation pit;
s2, pouring cement mortar into the foundation pit to form a cement mortar layer;
s3, horizontally inserting a plurality of anti-settling plates at positions, located above the cement mortar layer, of the inner side wall of the foundation pit, laying support plates on the upper surfaces of the anti-settling plates, and enabling the side walls of the support plates to be attached to the inner side wall of the foundation pit;
s4, inserting an anti-settling column vertically into the upper surface of the supporting plate, inserting the supporting plate, the anti-settling plate and the cement mortar layer into soil below the foundation pit from top to bottom in sequence by the anti-settling column, arranging a supporting assembly for supporting one end of the anti-settling plate, which is positioned in the foundation pit, between the anti-settling plate and the anti-settling column, and arranging a fixing plate for fixing the supporting plate and the anti-settling column between the supporting plate and the anti-settling column;
s5, forming a pouring hole in the upper end face of the anti-settling column, wherein the bottom end of the pouring hole is communicated with a space between the anti-settling plate and the cement mortar layer, and pouring concrete into the pouring hole to fill the space between the anti-settling plate and the cement mortar layer with the concrete to form a supporting concrete layer;
s6, pouring concrete into the foundation pit to form a reinforced concrete layer fixedly paved on the upper surface of the supporting plate, and finally, fixedly paving a cushion layer on the upper surface of the reinforced concrete layer.
By adopting the technical scheme, before deep foundation treatment, soil in the foundation pit is compacted, preliminary foundation settlement prevention is carried out, cement mortar is poured into the foundation pit, so that the cement mortar is bonded and fixed with the inner bottom wall and the inner side wall of the foundation pit, and finally, a support concrete layer, a reinforced concrete layer and a cushion layer are laid after the settlement prevention plate, the support plate, the settlement prevention column, the support component and the fixed plate are installed; when the bed course receives pressure, pressure transmits the backup pad through supporting concrete layer on, and a plurality of settlement-preventing plates support the backup pad simultaneously to prevent that the sedimentation column from supporting the backup pad through the fixed plate, prevent that sedimentation column, supporting concrete layer and cement mortar layer support through supporting component to preventing the sedimentation plate, finally make the settlement-preventing ability of ground obtain showing and promote.
Optionally, the support assembly comprises a rotating shaft and a support column, the rotating shaft is vertically and rotatably connected to one side, away from the inner wall of the foundation pit, of the anti-settling plate in the wall thickness of the anti-settling column, and the support column is fixed with the rotating shaft and cuts off the anti-settling column; in S5, when the upper and lower surfaces of the support pillar are respectively attached to the lower surface of the anti-settling plate and the upper surface of the cement mortar layer, the pouring hole is communicated with the space between the anti-settling plate and the cement mortar layer; when the upper surface and the lower surface of the support column are both attached to the cut-off surface of the anti-settling column, the anti-settling column cuts off the pouring hole.
Through adopting above-mentioned technical scheme, earlier with prevent that the sedimentation column runs through the backup pad in proper order, prevent in inserting the soil of foundation ditch below behind sedimentation plate and the cement mortar layer, rotate the pivot again for the support column gradually with prevent the sedimentation column separation, at last to prevent between sedimentation plate lower surface and the cement mortar layer upper surface, can toward pouring downthehole pouring concrete this moment, will prevent that the space of sedimentation plate below fills up, improved and carried out the efficiency of construction that supports to preventing the sedimentation plate.
Optionally, the top end of the rotating shaft protrudes out of the upper end face of the anti-settling column and is fixed with a rotating plate.
Through adopting above-mentioned technical scheme, promote to change the board and can make the pivot rotate for the rotation of pivot is light laborsaving more.
Optionally, when the pouring hole is communicated with the space between the anti-settling plate and the cement mortar layer, the rotating plate is located right above the anti-settling column and seals an opening of the pouring hole, the upper surface of the rotating plate is provided with the rotating hole communicated with the pouring hole, and the lower surface of the rotating plate is attached to the upper surface of the supporting plate.
Through adopting above-mentioned technical scheme, because the pivot is fixed with changeing the board, when changeing the board and rotating to preventing directly over the sedimentation column, toward changeing the downthehole concrete of pouring into, finally can make prevent that the sedimentation column and changeing the board reciprocal anchorage, the backup pad is pressed from both sides between commentaries on classics board and support column with preventing the sedimentation plate this moment, further improvement the settlement-proof ability of ground.
Optionally, the fixed plate cuts the position of the anti-settling column in the support plate, the fixed plate is fixed to the rotating shaft, the support plate and the inner side wall of the anti-settling column are horizontally provided with a fixed groove, and when the position of the pouring hole at the fixed plate is smooth, the fixed plate is located in the fixed groove.
Through adopting above-mentioned technical scheme, when rotating the pivot and making the support column support to preventing that the flitch supports, the fixed plate rotates to the fixed slot in, pours the hole and keeps unblocked state, and the fixed position of fixed plate and pivot still is located the truncation department of preventing the subsiding column this moment for prevent subsiding column and backup pad further fixed on vertical direction, and then make the ability of preventing subsiding of ground better.
Optionally, the holding tank has been seted up to the bottom wall in the fixed slot, and the roof is vertical to be fixed with the spring in the holding tank, and the bottom mounting of spring has vertical fixed block of sliding connection in the holding tank, and the fixed block changes over to the lateral wall slope of fixed slot position downwards towards the fixed plate, and the fixed plate upper surface is seted up and is supplied fixed block male card hole, and when the spring was in natural state, the fixed block was located holding tank and card hole simultaneously.
Through adopting above-mentioned technical scheme, when the fixed plate changes over to the fixed slot into, the inclined plane of fixed block receives the extrusion of fixed plate and in the holding tank of retracting gradually, drives the card hole when rotating to fixed block department when the fixed plate, and the resilience force of spring makes the fixed block insert the card downthehole for more firm between fixed plate and the backup pad.
Optionally, in S3, fixing a plurality of reinforcing plates to the upper surface of the cement mortar layer, attaching the side walls of the reinforcing plates to the side walls of the foundation pit, and attaching the upper surfaces of the reinforcing plates to the lower surface of the anti-settling plate.
Through adopting above-mentioned technical scheme, setting up of reinforcing plate can support preventing subsiding the board, and then has improved the firm degree of preventing subsiding the board in the foundation ditch.
Optionally, a plurality of inserting plates are fixed to the lower surface of the supporting plate, and the inserting plates penetrate through the anti-settling plate downwards and then are inserted into the reinforcing plate.
Through adopting above-mentioned technical scheme, when the backup pad was placed and is prevented subsiding on the board, the picture peg runs through and prevents subsiding in the board inserts the reinforcing plate for the backup pad with prevent subsiding more firm between the board.
Optionally, in S6, a waterproof concrete layer is first fixedly laid on the reinforced concrete layer, and then the cushion layer is fixedly laid on the waterproof concrete layer.
Through adopting above-mentioned technical scheme, waterproof concrete layer's setting can reduce from bed course infiltration to the intraformational moisture of reinforced concrete, and then has played the promotion effect to the anti-settling capacity of ground.
Optionally, waterproof geotextile is fixedly laid between the waterproof concrete layer and the cushion layer.
Through adopting above-mentioned technical scheme, the setting of waterproof geotechnological cloth has reduced the moisture that infiltrates into waterproof concrete layer department in the bed course, and then has improved waterproof concrete layer's life.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the cushion layer is subjected to pressure, the pressure is transmitted to the supporting plates through the supporting concrete layer, the supporting plates are simultaneously supported by the multiple anti-settling plates, the anti-settling columns support the supporting plates through the fixing plates, and the anti-settling columns, the supporting concrete layer and the cement mortar layer support the anti-settling plates through the supporting assemblies, so that the anti-settling capacity of the foundation is obviously improved;
2. the rotating shaft is rotated, so that the support columns are gradually separated from the anti-settling columns, and finally the rotating shaft is rotated to a position between the lower surface of the anti-settling plate and the upper surface of the cement mortar layer, concrete can be poured into the pouring hole, the space below the anti-settling plate is filled, and the construction efficiency of supporting the anti-settling plate is improved;
3. when the fixed plate changes over to the fixed slot in, the inclined plane of fixed block receives the extrusion of fixed plate and in the holding tank withdraws gradually, drives the card hole when rotating to fixed block department when the fixed plate, and the resilience force of spring makes the fixed block insert the card downthehole for more firm between fixed plate and the backup pad.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of the present application;
FIG. 2 is a partial cross-sectional view showing the support assembly;
fig. 3 is a schematic view showing the structure of the support assembly.
Description of reference numerals: 1. a foundation pit; 11. a cement mortar layer; 12. supporting the concrete layer; 3. an anti-settling plate; 4. a support plate; 41. fixing grooves; 42. accommodating grooves; 43. a spring; 44. a fixed block; 5. an anti-settling column; 51. pouring holes; 52. a fixing plate; 521. a clamping hole; 53. inserting plates; 54. a reinforcing plate; 6. reinforcing the concrete layer; 7. a waterproof concrete layer; 71. waterproof geotextile; 8. a cushion layer; 9. a support assembly; 91. a rotating shaft; 911. rotating the plate; 912. hole turning; 92. and (4) a support column.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a deep foundation treatment method, which comprises the following steps:
s1, referring to the figure 1, cleaning a construction site, digging a foundation pit 1, and tamping the bottom wall of the foundation pit 1 by adopting a dynamic compaction method;
s2, pouring cement mortar into the compacted foundation pit 1, and fixedly bonding the cement mortar with the inner wall of the foundation pit 1 to form a cement mortar layer 11;
s3, referring to fig. 1 and 2, vertically fixing a plurality of reinforcing plates 54 to the edge of the upper surface of the cement mortar layer 11; horizontally and fixedly inserting a plurality of anti-settling plates 3 into the inner side wall of the foundation pit 1, and attaching the lower surfaces of the anti-settling plates 3 to the upper edges of the reinforcing plates 54; a horizontally arranged support plate 4 is fixedly laid on the upper surface of the anti-settling plate 3, the lower surface of the support plate 4 is attached to the upper surfaces of all the anti-settling plates 3, the side wall of the support plate 4 is attached to the side wall of the foundation pit 1, an inserting plate 53 is fixed on the lower surface of the support plate 4, and the inserting plate 53 penetrates through the anti-settling plate 3 and then is inserted into a reinforcing plate 54;
s4, referring to fig. 1 and 2, the upper surface of the support plate 4 is vertically inserted with a plurality of anti-settling columns 5, the anti-settling columns 5 sequentially penetrate through the support plate 4, the anti-settling plate 3 and the cement mortar layer 11 from top to bottom and then are inserted into the soil below the foundation pit 1, a support assembly 9 is arranged between the anti-settling plate 3 and the anti-settling columns 5, and the support assembly 9 is used for stably supporting one end of the anti-settling plate 3 away from the side wall of the foundation pit 1;
referring to fig. 2 and 3, the support assembly 9 includes a rotating shaft 91 and a support column 92 which are vertically arranged, the rotating shaft 91 is rotatably connected in the wall thickness of the anti-settling column 5, the rotating shaft 91 is located at a position of the anti-settling column 5 far away from the inner side wall of the foundation pit 1, the support column 92 cuts off and replaces a part of the anti-settling column 5 located between the lower surface of the anti-settling plate 3 and the upper surface of the cement mortar layer 11, and the rotating shaft 91 is fixed with the support column 92; when preventing that sedimentation column 5 inserts backup pad 4, prevent the axis collineation of sedimentation column 5 and support column 92, prevent that sedimentation column 5 inserts backup pad 4 back, rotate pivot 91, support column 92 gradually with prevent the separation of sedimentation column 5, final support column 92's upper surface with prevent the laminating of 3 lower surfaces of settlement plate, support column 92's lower surface and the laminating of 11 upper surfaces of cement mortar layer have played stable support fixed action to preventing sedimentation plate 3.
Referring to fig. 2 and 3, a horizontally arranged fixing plate 52 is arranged between the support plate 4 and the anti-settling column 5, the fixing plate 52 is penetrated and fixed by a rotating shaft 91, a horizontally arranged fixing groove 41 for the fixing plate 52 to rotate in is formed in the inner side wall of the support plate 4, which is attached to the anti-settling column 5, and the fixing plate 52 cuts off and replaces the part of the anti-settling column 5, which is located at the fixing groove 41; when preventing that the sedimentation column 5 inserts backup pad 4, prevent that the central line collineation of sedimentation column 5 axis and fixed plate 52, prevent that the sedimentation column 5 inserts backup pad 4 back, when rotating shaft 91, the rotating plate changes over into fixed slot 41, has improved and has prevented the firm degree between sedimentation column 5 and the backup pad 4.
Referring to fig. 2, an accommodating groove 42 is vertically formed in the top wall of the accommodating groove 41, a spring 43 is vertically fixed on the top wall of the accommodating groove 42, a fixing block 44 is fixedly connected to the bottom end of the spring 43, the fixing block 44 vertically slides in the accommodating groove 42, one side wall of the fixing block 44 is inclined downward, the inclined surface of the fixing block 44 rotates to the position of the accommodating groove 41 toward the fixing plate 52, a clamping hole 521 for inserting the fixing block 44 is formed in the upper surface of the fixing plate 52, and when the spring 43 is in a natural state, the fixing block 44 is located in the accommodating groove 42 and; when the rotating shaft 91 is rotated to enable the fixing plate 52 to rotate to the fixing groove 41, the fixing plate 52 is in contact with the inclined surface of the fixing block 44, the fixing block 44 is gradually pushed into the accommodating groove 42, when the fixing plate 52 drives the clamping hole 521 to reach the fixing block 44, the resilience of the spring 43 and the self gravity of the fixing block 44 enable the fixing block 44 to be inserted into the clamping hole 521, and the stability between the anti-settling column 5 and the supporting plate 4 is further improved.
S5, referring to fig. 2 and 3, the upper end surface of the anti-settling column 5 is provided with a vertically arranged pouring hole 51, the inner bottom wall of the pouring hole 51 is flush with the upper surface of the cement mortar layer 11, the top end of the rotating shaft 91 extends out of the upper end surface of the anti-settling column 5 and is fixedly connected with a horizontally arranged rotating plate 911, the lower surface of the rotating plate 911 is attached to the upper surface of the supporting plate 4, and the upper surface of the rotating plate 911 is provided with a rotating hole 912 for communicating the pouring hole 51; when the supporting column 92 and the anti-settling column 5 are coaxial, the pouring hole 51 is cut off by both the supporting column 92 and the fixing plate 52, and the rotating hole 912 is separated from the pouring hole 51; when the rotating plate 911 is rotated to a position right above the anti-settling column 5, so that the rotating hole 912 is communicated with the pouring hole 51, the fixing plate 52 is rotated into the fixing groove 41, the supporting column 92 is rotated to a position between the lower surface of the anti-settling plate 3 and the upper surface of the cement mortar layer 11, the bottom end of the pouring hole 51 is communicated with the space between the anti-settling plate 3 and the cement mortar layer 11, and then concrete is poured into the rotating hole 912, so that the concrete is filled in the space between the anti-settling plate 3 and the cement mortar layer 11 through the pouring hole 51, and the supporting concrete layer 12 is formed;
s6, referring to fig. 1, pouring concrete on the supporting plate 4 to form a reinforced concrete layer 6 fixed on the upper surface of the supporting plate 4, wrapping and fixing the rotating plate 911 with the reinforced concrete layer 6, fixedly laying a waterproof concrete layer 7 on the reinforced concrete layer 6, fixedly laying a waterproof geotextile 71 on the waterproof concrete layer 7, and finally fixedly laying a cushion layer 8 on the waterproof geotextile 71, wherein the cushion layer 8 in this embodiment is mainly sand and stone.
The implementation principle of the deep foundation treatment method in the embodiment of the application is as follows: before the deep foundation is treated, the soil in the foundation pit 1 is tamped by a dynamic compaction method so as to improve the stability of the soil in the foundation pit 1 and perform preliminary foundation settlement prevention;
pouring cement mortar into the foundation pit 1, so that the cement mortar is bonded and fixed with the inner bottom wall and the side wall of the foundation pit 1, fixing a plurality of reinforcing plates on the cement mortar layer 11, horizontally inserting a plurality of anti-settling plates 3 into the side wall of the foundation pit 1, and placing the support plate 4 on the anti-settling plates 3; then the anti-settling column 5 vertically penetrates through the support plate 4, the anti-settling plate 3 and the cement mortar layer 11 from top to bottom in sequence and then is inserted into the soil below the foundation pit 1;
rotating the rotating plate 911 to enable the rotating shaft 91 to drive the supporting column 92 to rotate to a position between the lower surface of the anti-settling plate 3 and the upper surface of the cement mortar layer 11 and drive the fixing plate 52 to rotate into the fixing groove 41, the fixing plate 52 is in contact with the inclined surface of the fixing block 44 and gradually jacks the fixing block 44 into the accommodating groove 42, when the fixing plate 52 drives the clamping hole 521 to reach the fixing block 44, the fixing block 44 is inserted into the clamping hole 521 due to the resilience of the spring 43 and the self-gravity of the fixing block 44, the rotating hole 912 is communicated with the pouring hole 51, the bottom end of the pouring hole 51 is communicated with the space between the anti-settling plate 3 and the cement mortar layer 11, and then concrete is poured into the rotating hole 912, so that the concrete is filled in the space between the anti-settling plate 3 and the cement mortar layer 11 through the pouring hole 51;
and then the reinforced concrete layer 6, the waterproof concrete layer 7, the waterproof geotextile 71 and the cushion layer 8 are fixedly paved on the support plate 4 in sequence, and finally the anti-settling capacity of the foundation is improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. A deep foundation treatment method is characterized in that: the method comprises the following steps:
s1, cleaning a construction site, digging a foundation pit (1), and compacting the bottom wall of the foundation pit (1);
s2, pouring cement mortar into the foundation pit (1) to form a cement mortar layer (11);
s3, horizontally inserting a plurality of anti-settling plates (3) into the position, located above the cement mortar layer (11), of the inner side wall of the foundation pit (1), laying support plates (4) on the upper surfaces of the anti-settling plates (3), and enabling the side walls of the support plates (4) to be attached to the inner side wall of the foundation pit (1);
s4, vertically inserting an anti-settling column (5) into the upper surface of a support plate (4), sequentially penetrating the support plate (4), the anti-settling plate (3) and a cement mortar layer (11) from top to bottom through the anti-settling column (5), inserting the anti-settling column (5) into soil below a foundation pit (1), arranging a support assembly (9) for supporting one end, located in the foundation pit (1), of the anti-settling plate (3) between the anti-settling plate (3) and the anti-settling column (5), and arranging a fixing plate (52) for fixing the support plate (4) and the anti-settling column (5) between the support plate (4) and the anti-settling column (5);
s5, a pouring hole (51) is formed in the upper end face of the anti-settling column (5), the bottom end of the pouring hole (51) is communicated with a space between the anti-settling plate (3) and the cement mortar layer (11), and concrete is poured into the pouring hole (51), so that the concrete fills the space between the anti-settling plate (3) and the cement mortar layer (11) to form a supporting concrete layer (12);
s6, pouring concrete into the foundation pit (1) to form a reinforced concrete layer (6) fixedly paved on the upper surface of the supporting plate (4), and finally, fixedly paving a cushion layer (8) on the upper surface of the reinforced concrete layer (6).
2. The method for treating a deep foundation according to claim 1, wherein: the supporting assembly (9) comprises a rotating shaft (91) and a supporting column (92), the rotating shaft (91) is vertically and rotatably connected to one side, away from the inner wall of the foundation pit (1), of the anti-settling column (5) in the wall thickness, of the anti-settling plate (3), and the supporting column (92) is fixed with the rotating shaft (91) and cuts the anti-settling column (5); in S5, when the upper surface and the lower surface of the support column (92) are respectively attached to the lower surface of the anti-settling plate (3) and the upper surface of the cement mortar layer (11), the pouring hole (51) is communicated with a space between the anti-settling plate (3) and the cement mortar layer (11); when the upper surface and the lower surface of the support column (92) are both attached to the cut-off surface of the anti-settling column (5), the anti-settling column (5) cuts off the pouring hole (51).
3. The method for treating a deep foundation according to claim 2, characterized in that: the top end of the rotating shaft (91) protrudes out of the upper end face of the anti-settling column (5) and is fixed with a rotating plate (911).
4. A method for treating a deep foundation according to claim 3, characterized in that: when pouring the space that hole (51) communicate between preventing subsiding board (3) and cement mortar layer (11), changeing board (911) and being located and preventing subsiding post (5) directly over and will pour the opening of hole (51) and seal, changeing board (911) upper surface and offering and communicating in changeing hole (912) of pouring hole (51), changeing board (911) lower surface and backup pad (4) upper surface laminating.
5. The method for treating a deep foundation according to claim 2, characterized in that: the position that fixed plate (52) will prevent that sedimentation column (5) is located backup pad (4) is cut, and fixed plate (52) are fixed with pivot (91), and fixed slot (41) have been seted up with the inside wall level of preventing sedimentation column (5) laminating in backup pad (4), and when pouring hole (51) was located the position of fixed plate (52) department and was unblocked, fixed plate (52) were located fixed slot (41).
6. The method of treating a deep foundation as claimed in claim 5, wherein: holding tank (42) have been seted up to the bottom wall in fixed slot (41), the vertical spring (43) that is fixed with of roof in holding tank (42), the bottom mounting of spring (43) has vertical sliding connection fixed block (44) in holding tank (42), fixed block (44) are shifted into the lateral wall slope of fixed slot (41) position downwards towards fixed plate (52), fixed plate (52) upper surface is seted up and is supplied fixed block (44) male card hole (521), when spring (43) are in natural state, fixed block (44) are located holding tank (42) and card hole (521) simultaneously.
7. The method for treating a deep foundation according to claim 1, wherein: in S3, fixing a plurality of reinforcing plates (54) on the upper surface of the cement mortar layer (11), attaching the side walls of the reinforcing plates (54) to the side walls of the foundation pit (1), and attaching the upper surfaces of the reinforcing plates (54) to the lower surface of the anti-settling plate (3).
8. The method of claim 7, wherein: a plurality of inserting plates (53) are fixed on the lower surface of the supporting plate (4), and the inserting plates (53) penetrate through the anti-settling plate (3) downwards and then are inserted into the reinforcing plate (54).
9. The method for treating a deep foundation according to claim 1, wherein: in S6, the waterproof concrete layer (7) is first fixedly laid on the reinforced concrete layer (6), and then the cushion layer (8) is fixedly laid on the waterproof concrete layer (7).
10. The method of treating a deep foundation as claimed in claim 9, wherein: and a waterproof geotextile (71) is fixedly laid between the waterproof concrete layer (7) and the cushion layer (8).
CN202110174730.3A 2021-02-07 2021-02-07 Deep foundation treatment method Active CN112962576B (en)

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