CN111021346A - Occlusive pile grouting pipe and using method thereof - Google Patents
Occlusive pile grouting pipe and using method thereof Download PDFInfo
- Publication number
- CN111021346A CN111021346A CN201911287415.0A CN201911287415A CN111021346A CN 111021346 A CN111021346 A CN 111021346A CN 201911287415 A CN201911287415 A CN 201911287415A CN 111021346 A CN111021346 A CN 111021346A
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- Prior art keywords
- grouting
- pipe
- hole
- slip casting
- pile
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000007569 slipcasting Methods 0.000 claims abstract description 37
- 229910052742 iron Inorganic materials 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 230000000694 effects Effects 0.000 claims abstract description 22
- 235000013372 meat Nutrition 0.000 claims abstract description 21
- 230000000903 blocking effect Effects 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 239000011440 grout Substances 0.000 claims description 12
- 235000013311 vegetables Nutrition 0.000 claims description 7
- 239000002390 adhesive tape Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000005191 phase separation Methods 0.000 claims 1
- 239000011148 porous material Substances 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000007787 solid Substances 0.000 abstract description 5
- 238000009826 distribution Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
Abstract
The invention relates to the technical field of grouting pipes and discloses an occlusive pile grouting pipe which comprises an iron cage, fixed steel bars and grouting pipes, wherein the fixed steel bars are wrapped outside the iron cage in an arc shape, the grouting pipes are installed inside the iron cage, grouting holes are formed in the top and the bottom of each grouting pipe, a blocking plate corresponding to the grouting holes is fixedly connected to the outside of each grouting pipe, and a stop block inserted into each grouting hole is installed in the middle of each blocking plate. This secant pile slip casting pipe and application method thereof, the meat pipe cooperation of multiunit is the annular with the plain pipe of crisscross distribution and distributes on solid fixed ring, utilizes the slip casting liquid to fill the gap at hard interlock position, strengthens impervious effect, reaches the effect of stagnant water, improves the stagnant water nature and the impermeability of secant pile, makes whole cage body firmer, and water-proof effects is better, through sealing up the slip casting hole, can adjust the slip casting efficiency of slip casting pipe, and then can control the efficiency of slip casting as required, makes the quality of slip casting more controllable.
Description
Technical Field
The invention relates to the technical field of grouting pipes, in particular to an occlusive pile grouting pipe and a using method thereof.
Background
The secant pile has the effect of a waterproof curtain in deep foundation pit engineering, a certain gap can be generated at the secant part of the hard secant pile in engineering construction, the hard secant pile is similar to a construction gap, under the action of confined water on one side, the possibility of leakage is high, the water stopping effect is poor, and the phenomenon of leakage is more.
The prior art has the following disadvantages:
1. the hard occlusive pile has high possibility of generating leakage under the action of confined water;
2. after leakage occurs, the process of driving the high-pressure jet grouting pile is time-consuming and labor-consuming, and the cost is high.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the occlusive pile grouting pipe and the using method thereof, which have the advantages of low use cost, better effect of avoiding leakage and the like, and solve the problems that the hard occlusive pile has higher leakage possibility under the action of confined water, and the treatment of driving a high-pressure jet grouting pile wastes time and labor after the leakage occurs, and the cost is higher.
(II) technical scheme
In order to achieve the purposes of low use cost and better effect of avoiding leakage, the invention provides the following technical scheme: a grouting pipe for an occlusive pile comprises an iron cage, fixed steel bars and a grouting pipe, wherein the fixed steel bars are wrapped outside the iron cage in an arc shape, and the grouting pipe is arranged inside the iron cage;
the top and the bottom of slip casting pipe have all been seted up the slip casting hole, the outside fixedly connected with of slip casting pipe has the closure plate that corresponds with the slip casting hole, the mid-mounting of closure plate has the dog of pegging graft at slip casting downthehole portion.
Preferably, a vertical mounting hole is formed in the middle of the stop block, two moving plates are mounted inside the mounting hole, and the same vertical spring is fixedly connected between the two moving plates.
Preferably, the two moving plates are fixedly connected with sealing plates on opposite surfaces, slots corresponding to the two sealing plates are formed in the hole walls of the upper side and the lower side of the grouting hole, and one ends, far away from the moving plates, of the sealing plates extend to the insides of the slots.
Preferably, the top and the bottom of closure plate all seted up the locating hole, go out the outside of slip casting pipe and seted up two constant head tanks that are located the upper and lower both sides of slip casting hole respectively, the inside threaded connection of locating hole has fixing bolt, fixing bolt's right-hand member extends to the inside of constant head tank and with constant head tank threaded connection.
Preferably, the middle part of the blocking plate is provided with a through hole corresponding to the stop block, the left side wall of the mounting hole is provided with an air hole communicated with the through hole, and the air hole is positioned between the two moving plates.
Preferably, the left side of the sealing plate at one end inside the slot is provided with an arc-shaped surface, and the right side of the sealing plate at one end inside the slot is provided with an inclined surface.
Preferably, the iron cage comprises a plurality of meat pipes, a plurality of vegetable pipes and a fixing ring, the meat pipes and the vegetable pipes are distributed in a staggered mode and are fixedly connected with the fixing ring, and the grouting pipes are arranged at the occlusion positions where the meat pipes and the vegetable pipes are connected.
The invention provides a method for using a grouting pipe of an occlusive pile, which comprises the following steps:
a, fixing a grouting pipe: when the hard occlusion construction is adopted, a grouting pipe is fixed on an iron cage of a meat pipe through a fixed steel bar, the grouting pipe is arranged on the outer side surface of a foundation pit at the intersection point of an occlusion pile, and is positioned and installed by using a position fixing frame;
b, preparation work: sealing the grouting holes, inserting the stop blocks into the grouting holes, enabling the inclined planes to abut against the hole walls of the grouting holes to extrude the movable plate to move so as to compress the vertical springs, enabling the sealing plates to move to the positions of the slots along with the movement of the stop blocks, enabling the sealing plates to be inserted into the slots under the pushing of the vertical springs, enabling the stop blocks to be matched with the sealing plates to seal the grouting holes, then screwing the fixing bolts into the positioning holes and the positioning grooves to fix the positions of the blocking plates, enabling the blocking plates to completely seal the grouting holes, then winding the blocking plates outside the other grouting hole by using adhesive tapes, blocking the other grouting hole, and carrying out inspection;
c, hoisting the cage body: hoisting the iron cage by using hoisting equipment, so that the iron cage fixed with the grouting pipe can be more conveniently placed into the pile hole;
d, pouring: the method comprises the steps of firstly pouring pile concrete, after the meat pipe is solidified, grouting in a grouting pipe, punching out an adhesive tape at a grouting hole under the pressure of cement paste, injecting the grout into a gap of the occlusive pile, completing grouting after the grouting pressure is reached, and forming a closed entity after the grout is solidified, so that the water stopping effect can be achieved.
(III) advantageous effects
Compared with the prior art, the invention provides an occlusive pile grouting pipe and a using method thereof, and the occlusive pile grouting pipe has the following beneficial effects:
1. according to the secant pile grouting pipe and the using method thereof, a plurality of groups of meat pipes are matched with vegetable pipes which are distributed in a staggered mode and distributed on the fixing ring in an annular mode, the grouting liquid is used for filling gaps of hard secant positions, the anti-seepage effect is enhanced, the water stopping effect is achieved, the water stopping performance and the anti-seepage performance of the secant pile are improved, the whole cage body is firmer, and the waterproof effect is better.
2. According to the occlusive pile grouting pipe and the using method thereof, the grouting efficiency of the grouting pipe can be adjusted by sealing the grouting holes, and then the grouting efficiency can be controlled as required, so that the grouting quality is more controllable, and the grouting effect is better.
Drawings
FIG. 1 is a schematic structural view of a grouting pipe of an occlusive pile according to the present invention;
FIG. 2 is a schematic view of the overall mechanism of a grouting pipe of an occlusive pile according to the present invention
FIG. 3 is an enlarged view of A of FIG. 1 according to the present invention.
In the figure: 1. an iron cage; 2. fixing the steel bars; 3. a grouting pipe; 4. grouting holes; 5. a blocking plate; 6. a stopper; 7. mounting holes; 8. moving the plate; 9. a vertical spring; 10. a sealing plate; 11. a slot; 12. positioning holes; 13. positioning a groove; 14. fixing the bolt; 15. a through hole; 16. air holes; 17. an arc-shaped surface; 18. a bevel; 19. meat and meat pipes; 20. a plain tube; 21. and (4) fixing the ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. 1-3, a grouting pipe for an occlusive pile comprises an iron cage 1, fixed steel bars 2 and a grouting pipe 3, wherein the fixed steel bars 2 are wrapped outside the iron cage 1 in an arc shape, the grouting pipe 3 is installed inside the iron cage 1, the fixed steel bars 2 are wrapped outside the iron cage 1, so that the strength of the iron cage 1 can be increased, and the grouting pipe 3 can convey and conduct cement liquid;
When the grouting efficiency is required to be reduced, one or more grouting holes 4 can be sealed, a vertical mounting hole 7 is formed in the middle of a stop block 6, two moving plates 8 are mounted inside the mounting hole 7, the same vertical spring 9 is fixedly connected between the two moving plates 8, sealing plates 10 are fixedly connected to the opposite surfaces of the two moving plates 8, slots 11 corresponding to the two sealing plates 10 are formed in the upper side wall and the lower side wall of the grouting hole 4 respectively, one end, far away from the moving plates 8, of each sealing plate 10 extends into each slot 11 to seal the grouting hole 4, the stop block 6 is inserted into the grouting hole 4, the inclined surface 18 abuts against the wall of the grouting hole 4 to extrude the moving plates 8 to move so as to compress the vertical spring 9, the sealing plates 10 move to the positions of the slots 11 along with the movement of the stop block 6, and the sealing plates 10 are inserted into the slots 11 under the pushing of the vertical springs 9, can seal grouting hole 4 through 6 cooperation closing plate 10 of dog for this grouting hole 4 is effectively sealed, closing plate 10 is located the left side of the inside one end of slot 11 and has seted up arcwall face 17, closing plate 10 is located the right side of the inside one end of slot 11 and has seted up inclined plane 18, when demolising closure plate 5, arcwall face 17 supports with the left side wall of slot 11, can provide power for closing plate 10's removal, and then can take dog 6 out from grouting hole 4.
The area of closure plate 5 is greater than the sectional area of injected hole 4, make closure plate 5 can totally enclosed injected hole 4, locating hole 12 has all been seted up with the bottom at the top of closure plate 5, go out the outside of slip casting pipe 3 and set up two constant head tanks 13 that are located injected hole 4 upper and lower both sides respectively, the inside threaded connection of locating hole 12 has fixing bolt 14, fixing bolt 14's right-hand member extends to the inside of constant head tank 13 and with constant head tank 13 threaded connection, can fix the upper and lower both ends of closure plate 5 simultaneously through two fixing bolt 14, and then can effectively seal injected hole 4.
When the blocking plate 5 is installed, the moving plate 8 can slide in the installation hole 7, the through hole 15 corresponding to the stop block 6 is formed in the middle of the blocking plate 5, the air hole 16 communicated with the through hole 15 is formed in the left side wall of the installation hole 7, the air hole 16 is located between the two moving plates 8, the air hole 16 is communicated with the through hole 15, and air pressure in the installation hole 7 can be kept stable.
The invention provides a method for using a grouting pipe of an occlusive pile, which comprises the following steps:
a, fixing a grouting pipe 3: when hard occlusion construction is adopted, a grouting pipe 3 is fixed on an iron cage 1 of a meat pipe 19 through a fixed steel bar 2, the grouting pipe 3 is arranged on the outer side surface of a foundation pit at the intersection point of an occlusion pile, and is positioned and installed by using a position fixing frame;
b, preparation work: sealing the grouting holes 4, inserting the stop blocks 6 into the grouting holes 4, enabling the inclined planes 18 to abut against the hole walls of the grouting holes 4 to extrude the moving plate 8 to move so as to compress the vertical springs 9, enabling the sealing plates 10 to move to the positions of the slots 11 along with the movement of the stop blocks 6, enabling the sealing plates 10 to be inserted into the slots 11 under the pushing of the vertical springs 9, enabling the grouting holes 4 to be sealed through the cooperation of the stop blocks 6 and the sealing plates 10, then screwing the fixing bolts 14 into the positioning holes 12 and the positioning grooves 13 to fix the positions of the blocking plates 5, enabling the blocking plates 5 to completely seal the grouting holes 4, then winding the blocking plates outside another grouting hole 4 by using adhesive tapes, blocking another grouting hole 4 and carrying out inspection;
c, hoisting the cage body: hoisting the iron cage 1 by using hoisting equipment, so that the iron cage 1 fixed with the grouting pipe 3 can be more conveniently placed into the pile hole;
d, pouring: the method comprises the steps of firstly pouring pile concrete, after the meat pipe 19 is solidified, beginning to pour the grouting into the grouting pipe 3, punching the adhesive tape at the grouting hole 4 under the pressure of cement paste, pouring the grout into the gap of the occlusive pile, completing grouting after the grouting pressure is reached, and forming a closed entity after the grout is solidified, so that the water stopping effect can be achieved.
The invention has the beneficial effects that: the meat pipe 19 cooperation of multiunit is the annular rather than the plain pipe 20 of crisscross distribution and distributes on solid fixed ring 21, utilizes the slip casting liquid to fill the gap at hard interlock position, strengthens impervious effect, reaches the effect of stagnant water, improves the stagnant water nature and the impermeability of interlock stake for whole cage is firmer, and water-proof effects is better, can also adjust the efficiency of slip casting as required, guarantees the effect of slip casting, and then makes the quality of slip casting higher.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an occlusive pile slip casting pipe, includes iron cage (1), fixed reinforcing bar (2) and slip casting pipe (3), its characterized in that: the fixed steel bars (2) are wrapped outside the iron cage (1) in an arc shape, and the grouting pipes (3) are installed inside the iron cage (1);
grouting holes (4) are formed in the top and the bottom of the grouting pipe (3), a blocking plate (5) corresponding to the grouting holes (4) is fixedly connected to the outer portion of the grouting pipe (3), and a stop block (6) inserted into the grouting holes (4) is installed in the middle of the blocking plate (5).
2. A bite pile grout tube according to claim 1, wherein: the middle of the stop block (6) is provided with a vertical mounting hole (7), two moving plates (8) are mounted inside the mounting hole (7), and the same vertical spring (9) is fixedly connected between the two moving plates (8).
3. A bite pile grout tube according to claim 2, wherein: two equal fixedly connected with closing plate (10) in the face of phase separation of movable plate (8), slot (11) that correspond with two closing plate (10) respectively are all seted up to the upper and lower both sides pore wall of slip casting hole (4), the one end that movable plate (8) were kept away from in closing plate (10) extends to the inside of slot (11).
4. A bite pile grout tube according to claim 1, wherein: locating hole (12) have all been seted up to the top and the bottom of closure plate (5), go out the outside of slip casting pipe (3) and set up two constant head tanks (13) that are located both sides about slip casting hole (4) respectively, the inside threaded connection of locating hole (12) has fixing bolt (14), the right-hand member of fixing bolt (14) extend to the inside of constant head tank (13) and with constant head tank (13) threaded connection.
5. A bite pile grout tube according to claim 1, wherein: the middle part of closure plate (5) is seted up through-hole (15) that correspond with dog (6), the left side wall of mounting hole (7) is seted up gas pocket (16) with the intercommunication of through-hole (15), gas pocket (16) are located between two movable plates (8).
6. A bite pile grout tube according to claim 1, wherein: the left side of the sealing plate (10) at one end inside the slot (11) is provided with an arc-shaped surface (17), and the right side of the sealing plate (10) at one end inside the slot (11) is provided with an inclined surface (18).
7. A bite pile grout tube according to claim 1, wherein: the iron cage (1) comprises a plurality of meat pipes (19), a plurality of vegetable pipes (20) and fixing rings (21), the meat pipes (19) and the vegetable pipes (20) are distributed in a staggered mode and are fixedly connected with the fixing rings (21), and the grouting pipes (3) are arranged at occlusion positions where the meat pipes (19) and the vegetable pipes (20) are connected.
8. A use method of a grouting pipe of a bite pile is characterized by comprising the following steps:
a fixed grouting pipe (3): when hard occlusion construction is adopted, a grouting pipe (3) is fixed on an iron cage (1) of a meat pipe (19) through a fixed steel bar (2), the grouting pipe (3) is arranged on the outer side surface of a foundation pit at the intersection point of an occlusion pile, and is positioned and installed by using a position fixing frame;
b, preparation work: sealing the grouting holes (4), inserting the stop blocks (6) into the grouting holes (4), enabling the inclined planes (18) to abut against the hole walls of the grouting holes (4) to extrude the movable plate (8) to move so as to compress the vertical springs (9), enabling the sealing plates (10) to move to the positions of the slots (11) along with the movement of the stop blocks (6), enabling the sealing plates (10) to be inserted into the slots (11) under the pushing of the vertical springs (9), enabling the stop blocks (6) to be matched with the sealing plates (10) to seal the grouting holes (4), then screwing the fixing bolts (14) into the positioning holes (12) and the positioning grooves (13), namely fixing the positions of the blocking plates (5), enabling the blocking plates (5) to completely seal the grouting holes (4), then winding the blocking plates outside the other grouting holes (4) by using adhesive tapes, blocking the other grouting holes (4) and carrying out inspection;
c, hoisting the cage body: hoisting the iron cage (1) by using hoisting equipment, so that the iron cage (1) fixed with the grouting pipe (3) can be more conveniently placed into the pile hole;
d, pouring: the method comprises the steps of firstly pouring pile concrete, after a meat pipe (19) is solidified, grouting in a grouting pipe (3), punching out an adhesive tape at a grouting hole (4) under the pressure of cement paste, injecting grout into a gap of the occlusive pile, completing grouting after the grouting pressure is reached, and forming a closed entity after the grout is solidified, so that the water stopping effect can be achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911287415.0A CN111021346A (en) | 2019-12-14 | 2019-12-14 | Occlusive pile grouting pipe and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911287415.0A CN111021346A (en) | 2019-12-14 | 2019-12-14 | Occlusive pile grouting pipe and using method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111021346A true CN111021346A (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911287415.0A Pending CN111021346A (en) | 2019-12-14 | 2019-12-14 | Occlusive pile grouting pipe and using method thereof |
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| Country | Link |
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| CN (1) | CN111021346A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203709726U (en) * | 2013-12-20 | 2014-07-16 | 重庆市二0三中学校 | Easily-pulled water cup |
| CN104895086A (en) * | 2015-05-04 | 2015-09-09 | 北京市勘察设计研究院有限公司 | Manual grouting layer method pile toe three-dimensional post-pressure grouting structure and pouring method |
| KR20170040602A (en) * | 2015-10-05 | 2017-04-13 | 김동욱 | Grouting device using a reinforced network is equipped with a small steel pipe |
| CN107460882A (en) * | 2017-06-20 | 2017-12-12 | 中冶天工集团有限公司 | A kind of retaining piles construction method of deep basal pit closing sealing |
| CN212175755U (en) * | 2019-12-14 | 2020-12-18 | 中冶天工集团有限公司 | Occlusive pile grouting pipe |
-
2019
- 2019-12-14 CN CN201911287415.0A patent/CN111021346A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203709726U (en) * | 2013-12-20 | 2014-07-16 | 重庆市二0三中学校 | Easily-pulled water cup |
| CN104895086A (en) * | 2015-05-04 | 2015-09-09 | 北京市勘察设计研究院有限公司 | Manual grouting layer method pile toe three-dimensional post-pressure grouting structure and pouring method |
| KR20170040602A (en) * | 2015-10-05 | 2017-04-13 | 김동욱 | Grouting device using a reinforced network is equipped with a small steel pipe |
| CN107460882A (en) * | 2017-06-20 | 2017-12-12 | 中冶天工集团有限公司 | A kind of retaining piles construction method of deep basal pit closing sealing |
| CN212175755U (en) * | 2019-12-14 | 2020-12-18 | 中冶天工集团有限公司 | Occlusive pile grouting pipe |
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