CN218437203U - Water plugging structure for T-shaped joint part of underground diaphragm wall - Google Patents
Water plugging structure for T-shaped joint part of underground diaphragm wall Download PDFInfo
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- CN218437203U CN218437203U CN202222906895.8U CN202222906895U CN218437203U CN 218437203 U CN218437203 U CN 218437203U CN 202222906895 U CN202222906895 U CN 202222906895U CN 218437203 U CN218437203 U CN 218437203U
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Abstract
The utility model discloses a T-shaped joint part water plugging structure of an underground diaphragm wall, which belongs to the technical field of underground construction engineering and comprises a rotary spraying pile, a supporting component and a grouting pipe, wherein the T-shaped joint part comprises a head and a bottom vertical to the head, and the rotary spraying pile is arranged on one side of the head away from the bottom; the supporting components are connected with the bottom and the head at the same time, two groups of supporting components are arranged on the supporting components and are respectively arranged on two sides of the bottom, and a cavity for accommodating fillers is arranged in the supporting components; the one end of slip casting pipe runs through supporting component and stretches into in the cavity, and the slip casting pipe is equipped with a plurality of, and the distance that arbitrary slip casting pipe stretched into the cavity and the space size adaptation that the cavity corresponds the position. The utility model provides a pair of underground continuous wall T shape connects position water shutoff structure to solve the T shape that prior art exists and connect the position because the structure is special, and multiple spot seepage water often appears and last the percolating water problem, the problem that conventional slip casting water shutoff measure effect is not good, and the effect is showing, is suitable for extensive popularization.
Description
Technical Field
The utility model relates to an underground building engineering technical field, in particular to, underground diaphragm wall T shape connects position water shutoff structure.
Background
The underground continuous wall is a foundation engineering, and adopts a trenching machine on the ground, a long and narrow deep groove is excavated under the condition of slurry wall protection along the peripheral axis of the deep excavation engineering, after the groove is cleaned, a steel reinforcement cage is hung in the groove, then underwater concrete is poured by a conduit method to form a unit groove section, and the steps are carried out section by section, so that a continuous reinforced concrete wall is built underground to be used as a structure for intercepting water, preventing seepage, bearing and retaining water.
The T-shaped joint part of the existing underground diaphragm wall often has the problems of multi-point water leakage and continuous water leakage due to the special structure, and the conventional grouting water plugging measure effect is not good at present, so that the necessary utility model relates to a T-shaped joint part water plugging structure of the underground diaphragm wall, which aims to overcome the defects in the prior art.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect, the utility model provides a technical problem lie in, provide a continuous wall T shape joint position structure that blocks up water to solve the T shape joint position that prior art exists because the structure is special, multiple spot seepage water often appears and last the seepage water problem, the not good problem of conventional slip casting water shutoff measure effect.
The utility model provides a T shape joint position structure of leaking stoppage of underground continuous wall, include:
the rotary spraying pile is arranged on one side of the T-shaped joint part, the T-shaped joint part comprises a head and a bottom perpendicular to the head, and the rotary spraying pile is arranged on one side, far away from the bottom, of the head;
the support assemblies are connected with the bottom and the head at the same time, two groups of support assemblies are arranged and are respectively arranged on two sides of the bottom, a cavity for containing filler is arranged in each support assembly, and the filler is used for plugging the T-shaped joint;
slip casting pipe, one end is run through the supporting component stretches into in the cavity, the other end is connected with slip casting equipment, be used for to pour into the grout for water shutoff in the cavity, the slip casting pipe is equipped with a plurality of, arbitrary the slip casting pipe stretches into the distance of cavity with the space size adaptation that the cavity corresponds the position.
Preferably, the support assembly comprises:
the first fixed supporting plate is connected with the head;
the second fixed supporting plate is connected with the bottom and the first fixed supporting plate;
the horizontal supporting plates are connected with the first fixed supporting plate and the second fixed supporting plate simultaneously, and two horizontal supporting plates are symmetrically arranged on two sides of the first fixed supporting plate and the second fixed supporting plate;
the vertical supporting plate is simultaneously connected with the first fixed supporting plate, the second fixed supporting plate and the two horizontal supporting plates, and the first fixed supporting plate, the second fixed supporting plate and the two horizontal supporting plates and the vertical supporting plates form a cavity.
Preferably, a plurality of grouting holes are formed in the grouting pipe, and are all arranged in the cavity.
Preferably, the horizontal supporting plate is a triangular plate; the supporting unit is of a triangular prism-shaped structure.
Preferably, the jet grouting piles are arranged side by side along the arrangement direction of the head.
Preferably, a plurality of slip casting pipe along vertical fagging set up side by side, and all with vertical fagging is perpendicular.
Preferably, the distance that the grouting pipe located in the middle of the vertical supporting plate stretches into the cavity is greater than the distance that the grouting pipes located on the two sides stretch into the cavity.
Preferably, the cross section of the vertical supporting plate is a circular arc; the supporting component further comprises an extension unit which is connected with the vertical supporting plate, the bottom and the head, an extension cavity is formed between the extension unit and the vertical supporting plate, a filler is arranged in the extension cavity, and the grouting pipe penetrates through the extension unit.
According to the above technical scheme, the utility model provides a pair of underground continuous wall T shape connects position water shutoff structure has following advantage: 1. the water stopping structure at the joint part is simple and convenient to construct; 2. the water blocking mode of 'inside and outside combination' is adopted for the leakage position of the underground continuous wall joint, so that the problems of multi-point water leakage, multiple water leakage and the like at the T-shaped joint position can be effectively solved. The utility model provides a T shape that prior art exists connects the position because the structure is special, and multiple spot seepage water often appears and lasts the percolating water problem, the not good problem of conventional slip casting water shutoff measure effect, simple structure, the effect is showing, is suitable for extensive popularization.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a support assembly of a T-shaped joint part water plugging structure of an underground diaphragm wall provided by the present invention;
FIG. 2 is a schematic structural view of a water shutoff structure at a T-shaped joint part of an underground diaphragm wall provided by the utility model;
fig. 3 is another structural schematic diagram of a water shutoff structure at a T-shaped joint part of an underground diaphragm wall provided by the utility model.
In FIGS. 1-3:
1. carrying out jet grouting pile; 2. a support assembly; 3. grouting pipes; 4. a head portion; 5. a bottom; 21. a first fixed supporting plate; 22. a second fixed supporting plate; 23. a horizontal supporting plate; 24. a vertical supporting plate; 25. a cavity; 26. an extension unit; 31. and (4) grouting holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to fig. 2, a concrete embodiment of a T-shaped joint portion water plugging structure for an underground diaphragm wall according to the present invention will be described. The water plugging structure for the T-shaped joint part of the underground continuous wall comprises a rotary spraying pile 1, a support assembly 2 and a grouting pipe 3, wherein the rotary spraying pile 1 is arranged on one side of the T-shaped joint part, the T-shaped joint part comprises a head 4 and a bottom 5 perpendicular to the head 4, a first turning area is formed between one side of the bottom 5 and the head 4, a second turning area is formed between the other side of the bottom 5 and the head 4, and the rotary spraying pile 1 is arranged on one side, far away from the bottom 5, of the head 4; the support component 2 is connected with the bottom 5 and the head 4 at the same time, the support component 2 is provided with two groups, and the two groups are respectively arranged at two sides of the bottom 5, namely a first turning area and a second turning area are respectively arranged, a cavity 25 for containing filler is arranged in the support component 2, the filler is used for plugging water at the T-shaped joint part, and the filler can be bentonite; in the one end of slip casting pipe 3 runs through supporting component 2 and stretches into cavity 25, the other end is connected with slip casting equipment for inject water shutoff slurry into in cavity 25, slip casting pipe 3 is equipped with a plurality of, and arbitrary slip casting pipe 3 stretches into the space size adaptation of the distance of cavity 25 and the corresponding position of cavity 25.
Compared with the prior art, the T-shaped joint part water plugging structure of the underground continuous wall realizes synchronous water sealing of the inner side and the outer side of the T-shaped joint part through the matched arrangement of the jet grouting pile 1 and the support component 2, and the water sealing effect is better; through the setting of pre-buried slip casting pipe 3, can adjust grouting volume and slip casting number of times according to the stifled water condition of slip casting, avoid extravagant material behind the disposable slip casting or the poor problem of stagnant water effect.
As another embodiment of the present invention, the structure of the water shutoff structure at the T-shaped joint position of the underground continuous wall is substantially the same as that in the above embodiment, and the difference is that the support assembly 2 includes a first fixed support plate 21, a second fixed support plate 22, a horizontal support plate 23, and a vertical support plate 24, wherein the first fixed support plate 21 is connected with the head 4; the second fixed supporting plate 22 is connected with the bottom 5 and the first fixed supporting plate 21 at the same time; the horizontal supporting plates 23 are connected with the first fixed supporting plate 21 and the second fixed supporting plate 22 at the same time, and two horizontal supporting plates 23 are symmetrically arranged at two sides of the first fixed supporting plate 21 and the second fixed supporting plate 22; the vertical supporting plate 24 is simultaneously connected with the first fixed supporting plate 21, the second fixed supporting plate 22 and the two horizontal supporting plates 23, and a cavity 25 is formed among the first fixed supporting plate 21, the second fixed supporting plate 22, the two horizontal supporting plates 23 and the vertical supporting plate 24. Fix fagging 21, the fixed fagging 22 of second with head 4 and bottom 5 respectively earlier and be connected fixedly, install vertical fagging 24 and horizontal fagging 23 again, the structure at laminating T shape joint position that this kind of setting mode can be better, the sealed effect of stifled water is better, supporting component 2's suitability is better.
As another embodiment of the present invention, the structure of the water shutoff structure at the T-shaped joint of the diaphragm wall is substantially the same as that in the above-mentioned embodiment, and its difference lies in that a plurality of grouting holes 31 are provided on the grouting pipe 3, and a plurality of grouting holes 31 are provided in the cavity 25, i.e., the portion of the grouting pipe 3 provided with the grouting holes 31 extends into the cavity 25, and during the grouting process, the grout flows out from the grouting holes 31 and permeates into the filler. The plurality of grouting pipes 3 are arranged side by side along the arrangement direction of the vertical supporting plate 24 and are all vertical to the vertical supporting plate 24; the distance that the slip casting pipe 3 that is located vertical fagging 24 intermediate position stretches into in the cavity 25 is greater than the distance that the slip casting pipe 3 that is located both sides stretches into in the cavity 25, and the distance that stretches into in the cavity 25 in the middle of the slip casting pipe 3 on vertical fagging 24 is long promptly, stretches into the distance and shortens more and more to both sides, and the slip casting hole 31 evenly sets up as far as possible in cavity 25 promptly, and slip casting efficiency is higher like this.
In the present embodiment, the horizontal strut plate 23 is a triangular plate; the supporting unit is triangular prism column structure, and the T shape joint position of laminating that triangular prism column structure can be fine, and the supporting unit is used for holding the filler and restricting the diffusion range of thick liquid, guarantees that the thick liquid solidifies the realization effect of blocking water in the position of leaking. It is within the scope of the present disclosure to provide the above-described support unit-related performance function.
In this embodiment, a plurality of the jet grouting piles 1 are arranged side by side along the installation direction of the head 4, and the plurality of jet grouting piles 1 can cover the water leakage position in all directions to perform waterproof treatment on the water leakage position.
Referring to fig. 1 to 3, as another embodiment of the present invention, the structure of the T-shaped joint water blocking structure of the underground diaphragm wall is substantially the same as that of the above embodiment, but the difference is that the cross section of the vertical supporting plate 24 is a circular arc, more specifically, the vertical supporting plate 24 is a circular arc structure recessed toward the cavity 25, which can cover a larger area of the T-shaped joint, thereby enlarging the leakage-proof area, and simultaneously reducing the waste of unnecessary materials in the middle area by a proper amount, so that the use efficiency of the materials is higher.
In this embodiment, the supporting assembly 2 further includes an extension unit 26 connected with the vertical supporting plate 24, the bottom 5 and the head 4, an extension cavity is formed between the extension unit 26 and the vertical supporting plate 24, a filler is disposed in the extension cavity, the grouting pipe 3 is disposed through the extension unit 26, and the cross section of the extension unit 26 is arc-shaped and adapted to the vertical supporting plate 24. During the slip casting, the thick liquid can get into the extension chamber, and the setting of extension unit 26 can form two layers of protection in vertical fagging 24's the outside, and the partly water blocking material of vertical fagging 24 separation, extension unit 26 separation partly water blocking material again consolidates vertical fagging 24, even the long-time in-process material of using blocks water the phenomenon that the effect reduces and also can not appear leaking in vertical fagging 24, and the effect of blocking water is better, and life is longer.
In this embodiment, the supporting assembly 2 further includes a moisture detector disposed on one side of the vertical supporting plate 24 close to the extension unit 26, the moisture detector is electrically connected to the grouting device and the alarm device at the same time, and the grouting operation is stopped when the moisture detector reaches a safe value during the construction process, which proves that the supporting assembly is in a normal waterproof state; in the use, if the moisture detector detects that the humidity value exceeds the safety threshold, then with humidity information transmission to alarm device, the staff inspects supporting component 2 to carry out the slip casting operation once more, with consolidation water-proof effects, in time the emergence of the condition of stopping leaking.
The construction method of the T-shaped joint part water plugging structure of the underground continuous wall, which applies the T-shaped joint part water plugging structure of the underground continuous wall in any embodiment, comprises the following specific steps:
s1, driving a plurality of jet grouting piles 1 in parallel at the outer side of a T-shaped joint part of an underground connecting wall, wherein the size of each jet grouting pile 1 can be phi 600 x 400, and the length and the position of a jet grouting section are determined according to a water leakage point;
s2, welding a plurality of supporting units on the inner side of the water leakage area of the underground continuous wall, welding the supporting units with the reinforcing steel bars of the underground continuous wall, filling bentonite into a cavity 25 of each supporting unit before the cavity 25 is closed in the construction process, and embedding a grouting pipe 3 with a certain length in advance;
the specific step of S2 may be: firstly, the first fixed supporting plate 21 and the second fixed supporting plate 22 are respectively fixed on the head 4 and the bottom 5 and welded together, then the vertical supporting plate 24 and one of the horizontal supporting plates 23 are welded together with the first fixed supporting plate 21 and the second fixed supporting plate 22, a cavity 25 formed between the vertical supporting plate 24, the horizontal supporting plate 23 and the first fixed supporting plate 21 and the second fixed supporting plate 22 is filled with bentonite, the part of the grouting pipe 3 provided with the grouting hole 31 is inserted into the bentonite, the grouting pipe 3 is welded and fixed with the position where the vertical supporting plate 24 contacts, and finally, the other horizontal supporting plate 23 is welded together with the vertical supporting plate 24, the first fixed supporting plate 21 and the second fixed supporting plate 22. Wherein the vertical supporting plate 24, the horizontal supporting plate 23, the first fixed supporting plate 21 and the second fixed supporting plate 22 can be steel plates with the thickness of 10 mm; the grouting pipe 3 can be a grouting steel pipe of phi 25, and the grouting hole 31 can be a grout overflow hole of phi 6 arranged in a quincunx manner.
And S3, grouting into the cavity 25 through the reserved grouting pipe 3, wherein under the action of grouting pressure, the grout generates filling, permeation, compaction and split flow in the bentonite after water absorption, and part of the grout permeates into the T-shaped joint part of the underground continuous wall.
The grout injected in the S3 is modified superfine cement grouting grout.
And S4, after grouting, observing that the local part of the leakage area still has leakage water, and performing grouting operation on the supporting units in the corresponding areas for multiple times until no water leakage condition is observed.
Compared with the prior art, adopt the utility model provides a pair of underground continuous wall T shape joint position structure of stopping up water has following advantage: 1. the water stopping structure at the joint part is simple and convenient to construct; 2. the water blocking mode of 'inside and outside combination' is adopted for the leakage position of the underground continuous wall joint, so that the problems of multi-point water leakage, multiple water leakage and the like at the T-shaped joint position can be effectively solved. It will be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
In the present specification, the embodiments are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same or similar parts between the embodiments are referred to each other. Details not described in the embodiments of the present invention belong to the prior art known to those skilled in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides an underground continuous wall T shape joint position structure of stopping up water which characterized in that includes:
the jet grouting pile comprises a jet grouting pile (1) and a jet grouting pile body, wherein the jet grouting pile (1) is arranged on one side of a T-shaped joint part, the T-shaped joint part comprises a head (4) and a bottom (5) vertical to the head (4), and the jet grouting pile (1) is arranged on one side, far away from the bottom (5), of the head (4);
the support component (2) is connected with the bottom (5) and the head (4) at the same time, two groups of support components (2) are arranged on two sides of the bottom (5) respectively, a cavity (25) for containing fillers is arranged in the support component (2), and the fillers are used for blocking water at the T-shaped joint;
slip casting pipe (3), one end runs through supporting component (2) stretch into in cavity (25), the other end is connected with grouting equipment, be used for to pour into in cavity (25) slurry for the shutoff water, slip casting pipe (3) are equipped with a plurality of, arbitrary slip casting pipe (3) stretch into the distance of cavity (25) with the space size adaptation that cavity (25) corresponds the position.
2. A T-joint site water shutoff structure for underground continuous walls according to claim 1, characterized in that the supporting member (2) comprises:
a first fixed stay plate (21) connected with the head (4);
a second fixed supporting plate (22) which is connected with the bottom (5) and the first fixed supporting plate (21);
the horizontal supporting plates (23) are connected with the first fixed supporting plate (21) and the second fixed supporting plate (22) simultaneously, and two horizontal supporting plates (23) are symmetrically arranged on two sides of the first fixed supporting plate (21) and the second fixed supporting plate (22);
vertical fagging (24), simultaneously with first fixed fagging (21), fixed fagging (22) of second and two horizontal fagging (23) are connected, first fixed fagging (21), fixed fagging (22) of second, two horizontal fagging (23) with form between vertical fagging (24) cavity (25).
3. The T-shaped joint part water plugging structure for the underground diaphragm wall as claimed in claim 2, wherein a plurality of grouting holes (31) are formed in the grouting pipe (3), and the plurality of grouting holes (31) are formed in the cavity (25).
4. The T-shaped joint part water plugging structure for the underground diaphragm wall as claimed in claim 2, wherein the horizontal supporting plate (23) is a triangular plate; the supporting unit is of a triangular prism structure.
5. The T-shaped joint part water plugging structure for the underground diaphragm wall as claimed in claim 2, wherein a plurality of the jet grouting piles (1) are arranged side by side along the arrangement direction of the head part (4).
6. The T-shaped joint part water plugging structure for the underground continuous wall as claimed in claim 3, wherein a plurality of said grouting pipes (3) are arranged side by side along the arrangement direction of said vertical supporting plate (24) and are all perpendicular to said vertical supporting plate (24).
7. A T-shaped joint part water plugging structure for an underground continuous wall according to claim 6, wherein the distance that the grouting pipes (3) located in the middle of the vertical supporting plates (24) extend into the cavity (25) is greater than the distance that the grouting pipes (3) located on both sides extend into the cavity (25).
8. The T-shaped joint part water plugging structure for the underground continuous wall according to claim 7, wherein the cross section of the vertical supporting plate (24) is a circular arc; the supporting component (2) further comprises an extension unit (26) which is connected with the vertical supporting plate (24), the bottom (5) and the head (4), an extension cavity is formed between the extension unit (26) and the vertical supporting plate (24), a filler is arranged in the extension cavity, and the grouting pipe (3) penetrates through the extension unit (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222906895.8U CN218437203U (en) | 2022-11-02 | 2022-11-02 | Water plugging structure for T-shaped joint part of underground diaphragm wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222906895.8U CN218437203U (en) | 2022-11-02 | 2022-11-02 | Water plugging structure for T-shaped joint part of underground diaphragm wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218437203U true CN218437203U (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222906895.8U Active CN218437203U (en) | 2022-11-02 | 2022-11-02 | Water plugging structure for T-shaped joint part of underground diaphragm wall |
Country Status (1)
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|---|---|
| CN (1) | CN218437203U (en) |
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2022
- 2022-11-02 CN CN202222906895.8U patent/CN218437203U/en active Active
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