CN219261018U

CN219261018U - Grouting pipe for foundation reinforcement

Info

Publication number: CN219261018U
Application number: CN202320385629.7U
Authority: CN
Inventors: 王惠东; 张帆; 王爱玲
Original assignee: Henan Fengji Engineering Testing Co ltd
Current assignee: Henan Fengji Engineering Testing Co ltd
Priority date: 2023-03-06
Filing date: 2023-03-06
Publication date: 2023-06-27
Anticipated expiration: 2033-03-06

Abstract

The utility model discloses a grouting pipe for foundation reinforcement, relates to the related field of foundation reinforcement, and aims to solve the problems that in the prior art, due to small size deviation between an opening hole and a grouting pipe, when the grouting pipe enters the opening hole, the grouting hole on the grouting pipe is easy to scrape soil on the inner wall of the opening hole, so that part of grouting holes are blocked by the soil, and the subsequent grouting uniformity is affected. The utility model discloses a high-pressure pipe, including outer tube, outer tube lateral surface, inner tube inner wall, outer tube lateral surface's both sides from last to having seted up the side trompil of equidistance down, set up to the cylindricality inner chamber in the outer tube, the outer tube inner wall is provided with the inner connection section of thick bamboo outside along the side trompil, inner connection section of thick bamboo and outer tube integrated into one piece, be provided with the shutoff post in inner connection section of thick bamboo and the side trompil, the inboard fixedly connected with laminating piece of shutoff post, every layer two laminating between the laminating piece, be provided with compression spring along the outside of shutoff post between inner connection section of thick bamboo and the laminating piece, the compression spring both ends are fixed with inner connection section of thick bamboo and laminating piece respectively.

Description

Grouting pipe for foundation reinforcement

Technical Field

The utility model relates to the field of foundation reinforcement, in particular to a grouting pipe for foundation reinforcement.

Background

The foundation refers to a soil body or rock mass for supporting a foundation below a building, soil layers serving as the building foundation are divided into rock, gravel soil, sand, silt soil, cohesive soil and artificial filling soil, the foundation is divided into a natural foundation and an artificial foundation (composite foundation), the natural foundation is a natural soil layer which does not need to be reinforced by people, the artificial foundation needs to be reinforced by people, and stone dust cushions, sand cushions, mixed lime soil backfilling and tamping are common.

The foundation is reinforced by grouting, holes matched with grouting pipes are formed in the foundation to be reinforced, the grouting pipes are inserted, and prepared chemical slurry or cement slurry is injected into the holes of the soil through the grouting pipes, so that the slurry is combined with the soil body, and the foundation is reinforced.

Because the size deviation of the hole and the grouting pipe is small, when the grouting pipe enters the hole, the grouting hole on the grouting pipe is easy to scrape down the soil on the inner wall of the hole, so that part of grouting holes are blocked by the soil, and the follow-up grouting uniformity is affected.

Disclosure of Invention

The utility model aims to provide a grouting pipe for foundation reinforcement, which solves the problems that the size deviation between an opening hole and a grouting pipe is small, and when the grouting pipe enters the opening hole, the grouting hole on the grouting pipe is easy to scrape down soil on the inner wall of the opening hole, so that part of grouting holes are blocked by the soil, and the subsequent grouting uniformity is affected.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a grouting pipe for foundation stabilization, includes the outer tube, the side trompil has been seted up from last to the equidistance down to the both sides of outer tube lateral surface, set up to the cylindricality inner chamber in the outer tube, the outer tube inner wall is provided with interior connection section of thick bamboo outside the side trompil along the side trompil, interior connection section of thick bamboo and outer tube integrated into one piece, be provided with the shutoff post in interior connection section of thick bamboo and the side trompil, the inboard fixedly connected with laminating piece of shutoff post, every layer is two laminating between the laminating piece, be provided with compression spring along the outside of shutoff post between interior connection section of thick bamboo and the laminating piece, the compression spring both ends are fixed with interior connection section of thick bamboo and laminating piece respectively.

Preferably, the middle of outer tube up end has been seted up and has gone up the entering groove, down the embedded groove has been seted up to the middle of the inside lower terminal surface of outer tube, cylindricality intracavity is provided with interior slip casting body, and the upper end of interior slip casting body extends to the upper end of outer tube, and the external diameter of interior slip casting body is the same with the diameter of going up the entering groove, interior slip casting body lower extreme is provided with down the tip, and lower tip and interior slip casting body lower extreme part embedding down the embedded inslot.

Preferably, the upper end of the inner side surface of the attaching block is provided with a first inclined surface, the outer side surface of the lower tip is provided with a second inclined surface, and the inclination of the second inclined surface is the same as that of the first inclined surface.

Preferably, an inlet channel, a flow channel and a discharge channel are formed in the plugging column, the upper port position of the inlet channel is located at the inner side of the upper end of the plugging column, the lower port position of the discharge channel is located at the outer side of the lower end of the plugging column, the inlet channel, the flow channel and the discharge channel are communicated, and the length of the plugging column minus the thickness of the inner wall of the outer sleeve and the length of the inner connecting cylinder is larger than twice the diameter of the inlet channel.

Preferably, the inside of interior slip casting body sets up to the slip casting chamber, it is provided with the slip casting hole to run through on the interior slip casting body lateral surface, slip casting hole and slip casting chamber intercommunication, the slip casting hole corresponds from top to bottom with the position of shutoff post.

Preferably, the lower end of the outer sleeve is integrally connected with an entry guide head.

Compared with the prior art, the utility model has the beneficial effects that:

1. in the utility model, each group of two corresponding attaching blocks in the interior are in an attaching state under the action of a pressure spring, and a blocking column is positioned in a side opening to block the side opening; the problem that the size deviation between the set hole and the grouting pipe is small, so that the soil on the inner wall of the set hole is easily scraped down by the grouting hole on the grouting pipe when the grouting pipe enters the set hole, and part of the grouting hole is blocked by the soil is avoided, so that the influence on the subsequent grouting uniformity is avoided.

2. According to the utility model, the inner grouting pipe body is inserted into the cylindrical inner cavity of the outer sleeve, and as the inclination of the second inclined surface is the same as that of the first inclined surface, the second inclined surfaces of the upper and lower tips of the inner grouting pipe body can press the first inclined surface of the bonding block to enable the bonding block to gradually move outwards, the plugging column is driven to move outwards along the side opening, so that the lower end face of the inner discharge channel of the plugging column is exposed, the subsequent grouting is not influenced, the outwards moving part distance of the plugging column can be increased, the outwards discharge range of the reinforced slurry can be increased, and the reinforcing effect is increased.

3. In the utility model, the inner diameter of the inner grouting pipe body is not large, the inner part can be filled with slurry quickly, the slurry is discharged outwards under the action of pressure, and because the grouting holes on the inner grouting pipe body correspond to the positions of the ports of the inlet channels, the discharged slurry does not completely downwards along the cylindrical inner cavity, but part of the discharged slurry enters the plugging columns through the inlet channels of the upper plugging columns, the reinforcing slurry normally flows outwards in the lower plugging columns, and part of the reinforcing slurry flows outwards in the upper plugging columns, so that the stability of the upper end position of the outer part of the grouting pipe can be slightly improved relative to the traditional grouting pipe, and the position state of the grouting pipe is stable in the continuous grouting process.

Drawings

Fig. 1 is a front view of a grouting pipe for reinforcing a foundation according to the present utility model;

FIG. 2 is a cross-sectional view of an outer sleeve of the present utility model;

FIG. 3 is an enlarged view of the structure at A of the present utility model;

FIG. 4 is a cross-sectional view of an inner grouting pipe body according to the utility model;

fig. 5 is an enlarged view of the structure at B of the present utility model.

In the figure: 1. an outer sleeve; 2. entering a guide head; 3. a lower embedded groove; 4. an upper entry slot; 5. a side opening; 6. a cylindrical lumen; 7. a bonding block; 8. a first inclined surface; 9. an inner connecting cylinder; 10. plugging the column; 11. entering the channel; 12. a flow channel; 13. a discharge passage; 14. an inner grouting pipe body; 15. grouting cavity; 16. grouting holes; 17. a lower tip; 18. a second inclined surface; 19. and a pressure spring.

Detailed Description

The following description of the embodiments of the present utility model 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 utility model, but not all embodiments.

Referring to fig. 1-5, an embodiment of the present utility model is provided: the utility model provides a grouting pipe for foundation stabilization, including outer tube 1, the lower extreme an organic whole of outer tube 1 is connected with gets into guide head 2, lateral opening 5 has been seted up from last to lower equidistance to the both sides of outer tube 1 lateral surface, set up to cylindricality inner chamber 6 in the outer tube 1, go up entering groove 4 has been seted up in the centre of outer tube 1 up end, lower embedded groove 3 has been seted up in the centre of the inside lower terminal surface of outer tube 1, be provided with interior slip casting body 14 in the cylindricality inner chamber 6, the upper end of interior slip casting body 14 extends to the upper end of outer tube 1, the injection of the connecting tube of being convenient for consolidates the thick liquid, the external diameter of interior slip casting body 14 is the same with the diameter of last entering groove 4. An inner connecting cylinder 9 is arranged outside the side opening 5 on the inner wall of the outer sleeve 1, the inner connecting cylinder 9 and the outer sleeve 1 are integrally formed, a plugging column 10 is arranged in the inner connecting cylinder 9 and the side opening 5, the inner side of the plugging column 10 is fixedly connected with a bonding block 7, each layer of bonding blocks 7 are bonded, a pressure spring 19 is arranged between the inner connecting cylinder 9 and the bonding block 7 along the outer part of the plugging column 10, and two ends of the pressure spring 19 are respectively fixed with the inner connecting cylinder 9 and the bonding block 7; an inlet channel 11, a flow channel 12 and a discharge channel 13 are formed in the plugging column 10, the upper port position of the inlet channel 11 is located on the inner side of the upper end of the plugging column 10, the lower port position of the discharge channel 13 is located on the outer side of the lower end of the plugging column 10, the inlet channel 11, the flow channel 12 and the discharge channel 13 are communicated, the length of the plugging column 10 minus the thickness of the inner wall of the outer sleeve 1 and the length of the inner connecting cylinder 9 is larger than twice the diameter of the inlet channel 11, the inner grouting pipe body 14 is inserted to enable the attaching block 7 to gradually move outwards, the pressure spring 19 is compressed, the plugging column 10 is driven to move outwards along the side opening 5, the upper end face of the inlet channel 11 is still kept in an exposed state after the inlet channel 11 moves, and reinforcing slurry can be injected.

Further, the lower end of the inner grouting pipe body 14 is provided with a lower tip 17, the lower tip 17 and the lower end part of the inner grouting pipe body 14 are partially embedded into the lower embedded groove 3, the upper end of the inner side surface of the attaching block 7 is provided with a first inclined surface 8, the outer side surface of the lower tip 17 is provided with a second inclined surface 18, the inclination of the second inclined surface 18 is the same as that of the first inclined surface 8, and when the inner grouting pipe body 14 is inserted into the cylindrical inner cavity 6 of the outer sleeve 1 along the upper entering groove 4 of the outer sleeve 1, the second inclined surface 18 of the upper and lower tip 17 of the inner grouting pipe body 14 presses the first inclined surface 8 of the attaching block 7 to enable the attaching block 7 to gradually move outwards; the inside of interior slip casting body 14 sets up to slip casting chamber 15, run through on the interior slip casting body 14 lateral surface and be provided with slip casting hole 16, slip casting hole 16 and slip casting chamber 15 intercommunication, slip casting hole 16 corresponds from top to bottom with the position of shutoff post 10, because of correspondence exists, the thick liquid of discharging is not fully along cylindricality inner chamber 6 downwards, and in the entering passageway 11 that has part to get into shutoff post 10 through upper end shutoff post 10, normally outwards flow reinforcing slurry in the lower extreme shutoff post 10, upper end shutoff post 10 has part reinforcing slurry outwards to flow, can slightly improve the stability of slip casting pipe outside upper end position for traditional slip casting pipe, make the position state of continuous slip casting in-process slip casting pipe stable.

Working principle: when the sealing device is used, holes matched with grouting pipes are formed in a foundation to be reinforced, the outer sleeve 1 is guided by the entering guide head 2 to enter the formed holes, at the moment, each group of inner corresponding two laminating blocks 7 are in a laminating state under the action of the pressure springs 19, and the sealing column 10 is positioned in the side opening 5 to seal the side opening 5.

The inner grouting pipe body 14 is inserted into the cylindrical inner cavity 6 of the outer sleeve 1 along the upper inlet groove 4 of the outer sleeve 1, the second inclined surface 18 of the upper and lower sharp points 17 of the inner grouting pipe body 14 presses the first inclined surface 8 of the joint block 7 to enable the joint block 7 to gradually move outwards, the pressure spring 19 is compressed, the plugging column 10 is driven to move outwards along the side opening 5, the lower end face of the discharging channel 13 is exposed, and the upper end face of the entering channel 11 is still in an exposed state. The reinforcing slurry is poured into the inner grouting pipe body 14, enters the cylindrical inner cavity 6 of the outer sleeve 1 through the grouting holes 16, enters the plugging column 10 through the entering channel 11 on the plugging column 10, flows through the flow channel 12 and is discharged through the discharging channel 13, and is injected into a soil gap to combine the reinforcing slurry with the soil.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Grouting pipe for foundation stabilization comprises an outer sleeve (1), and is characterized in that: side trompil (5) have been seted up from last to the equidistance in both sides of outer tube (1) lateral surface, set up to cylindricality inner chamber (6) in outer tube (1), outer tube (1) inner wall is provided with interior connecting cylinder (9) along side trompil (5) outward, interior connecting cylinder (9) and outer tube (1) integrated into one piece, be provided with shutoff post (10) in interior connecting cylinder (9) and side trompil (5), the inboard fixedly connected with laminating piece (7) of shutoff post (10), every layer is two laminating between laminating piece (7), be provided with compression spring (19) along the outside of shutoff post (10) between interior connecting cylinder (9) and laminating piece (7), compression spring (19) both ends are fixed with interior connecting cylinder (9) and laminating piece (7) respectively.

2. The grouting pipe for reinforcing a foundation according to claim 1, wherein: the upper inlet groove (4) has been seted up in the middle of outer tube (1) up end, lower embedded groove (3) has been seted up in the middle of the inside lower terminal surface of outer tube (1), be provided with interior slip casting body (14) in cylindricality inner chamber (6), the upper end of interior slip casting body (14) extends to the upper end of outer tube (1), and the external diameter of interior slip casting body (14) is the same with the diameter of last inlet groove (4), interior slip casting body (14) lower extreme is provided with down tip (17), down tip (17) are gone into down embedded groove (3) with interior slip casting body (14) lower extreme part.

3. A grouting pipe for reinforcing a foundation according to claim 2, wherein: the upper end of the inner side surface of the laminating block (7) is provided with a first inclined surface (8), the outer side surface of the lower tip (17) is provided with a second inclined surface (18), and the inclination of the second inclined surface (18) is the same as that of the first inclined surface (8).

4. The grouting pipe for reinforcing a foundation according to claim 1, wherein: an inlet channel (11), a flow channel (12) and an outlet channel (13) are formed in the plugging column (10), the upper port position of the inlet channel (11) is located on the inner side of the upper end of the plugging column (10), the lower port position of the outlet channel (13) is located on the outer side of the lower end of the plugging column (10), the inlet channel (11), the flow channel (12) and the outlet channel (13) are communicated, and the length of the plugging column (10) is larger than twice the diameter of the inlet channel (11) after subtracting the thickness of the inner wall of the outer sleeve (1) and the length of the inner connecting cylinder (9).

5. A grouting pipe for reinforcing a foundation according to claim 2, wherein: the inside of interior slip casting body (14) sets up into slip casting chamber (15), run through on interior slip casting body (14) lateral surface and be provided with grouting hole (16), grouting hole (16) and slip casting chamber (15) intercommunication, grouting hole (16) correspond from top to bottom with the position of shutoff post (10).

6. The grouting pipe for reinforcing a foundation according to claim 1, wherein: the lower end of the outer sleeve (1) is integrally connected with an entry guide head (2).