CN211006726U - Underground continuous wall antiseep structure - Google Patents
Underground continuous wall antiseep structure Download PDFInfo
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- CN211006726U CN211006726U CN201921774952.3U CN201921774952U CN211006726U CN 211006726 U CN211006726 U CN 211006726U CN 201921774952 U CN201921774952 U CN 201921774952U CN 211006726 U CN211006726 U CN 211006726U
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Abstract
The utility model discloses an underground continuous wall seepage prevention structure relates to the technical field of construction, first phase groove section and second phase groove section including a plurality of alternate connections, first phase groove section with the both ends face that second phase groove section is connected all is equipped with seal assembly, seal assembly includes stagnant water arch and rubber waterstop, the stagnant water protruding with first phase groove section integrated into one piece, the rubber waterstop bonding is in first phase groove section terminal surface with stagnant water protruding surface. The utility model discloses have the simple and convenient and short, the lower technological effect of cost of time limit for a project of construction.
Description
Technical Field
The utility model belongs to the technical field of the technique of construction and specifically relates to an underground continuous wall antiseep structure is related to.
Background
The underground continuous wall is a continuous underground wall body with functions of seepage prevention, soil retaining and load bearing, which is formed by digging a narrow and deep foundation trench in the ground by using special trenching machines on the ground and by means of the wall protection effect of slurry and pouring appropriate materials in the foundation trench. At present, in the construction of basement and subway stations of urban high-rise buildings, a foundation pit needs to be excavated, the excavation of the foundation pit is deep, the requirement on the protection of the surrounding environment of the foundation pit is high, and in order to control the adverse effect on the surrounding environment in the excavation stage of the foundation pit, underground continuous walls are often adopted at the periphery of the foundation pit as vertical soil retaining and water retaining structures of the foundation pit.
Due to the characteristics of the construction process of the underground continuous wall, the construction is carried out along the side of the foundation pit in a groove section construction mode, the underground continuous wall is composed of a plurality of wall panels, concrete of the adjacent wall panels is poured in stages, water leakage is easy to occur at the joint between the wall panels of the underground continuous wall, water leakage prevention is critical to the joint of the wall panels, and particularly when the underground continuous wall is used as a permanent outer wall of an underground structure, good water stopping measures are needed to be carried out at the joint.
Aiming at the problems, the Chinese patent with the patent publication number of CN203668969U provides a reinforced waterproof structure of an underground continuous wall, which comprises a supporting and reinforcing section and a reinforced waterproof section, wherein the supporting and reinforcing section is arranged at the wall body of the underground continuous wall without a seam, and the supporting and reinforcing section consists of a single-row three-shaft stirring pile arranged on the inner side of an underground continuous wall pit and a three-shaft stirring pile group arranged on the outer side of the underground continuous wall pit; consolidate waterproof section and set up the seam crossing between the adjacent groove section of underground continuous wall, consolidate waterproof section and include that the setting is at the inboard single triaxial stirring stake of underground continuous wall hole and the setting is used for sealed high pressure jet grouting stake of arranging in the parallel in the seam hole outside, consolidate waterproof section and still establish the overlap joint at the high pressure jet grouting stake of the triaxial stirring stake in the pit outside including sealing.
The above prior art solutions have the following drawbacks: the waterproof section of reinforcement of underground continuous wall realizes consolidating waterproof effect through pouring single triaxial stirring stake and high pressure jet grouting stake respectively in underground continuous wall both sides in above-mentioned patent, but this kind of waterproof reinforcement mode need additionally be under construction and pour stirring stake and jet grouting stake, and the construction engineering volume is big and the construction cycle is long, increases construction cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defect that the construction engineering volume is big, the construction period is long and results in construction cost high, and providing an underground continuous wall seepage prevention structure that the construction is simple and convenient and the time limit for a project is short, the cost is lower.
The utility model discloses a can realize through following technical scheme:
underground continuous wall antiseep structure, including a plurality of alternate connection's first phase groove section and second phase groove section, first phase groove section with the both ends face that second phase groove section is connected all is equipped with seal assembly, seal assembly includes that stagnant water is protruding and rubber waterstop, the stagnant water protruding with first phase groove section integrated into one piece, the rubber waterstop bonding is in first phase groove section terminal surface with the protruding surface of stagnant water.
By adopting the technical scheme, the water stopping bulges on the two end surfaces of the first-stage groove section have a blocking effect on water seepage outside the underground continuous wall pit, so that the water seepage is difficult to cross the water stopping bulges and enter the inner side of the underground continuous wall pit; before the second-stage groove section is poured, the rubber waterstop is bonded on the surfaces of the first-stage groove section and the waterstop protrusions, and after the second-stage groove section is poured, the rubber waterstop achieves a sealing and water-resisting effect between the first-stage groove section and the second-stage groove section, so that the anti-seepage effect is better. Reach sealed antiseep effect through stagnant water arch and rubber waterstop, stagnant water arch and one-stage groove section integrated into one piece construction convenience, the bonding construction of rubber waterstop is also simple easily to be operated, need not follow-up dry hardening time limit for a project to shorten construction cycle, reduce construction cost.
Further setting the following steps: and barrier steel plates are fixed on two side surfaces of the joint of the first-stage groove section and the second-stage groove section.
By adopting the technical scheme, the two blocking steel plates on the two side surfaces of the first-stage groove section and the second-stage groove section protect the connecting seam between the first-stage groove section and the second-stage groove section, and the water seepage outside the foundation pit is further reduced to enter the connecting seam, so that the water seepage is reduced.
Further setting the following steps: two sides of the rubber waterstop respectively extend to and are bonded on two side faces of the first-stage groove section, and the blocking steel plate is pressed on the rubber waterstop.
By adopting the technical scheme, the blocking steel plate is pressed on the part of the rubber water stop extending out of the first-stage groove section, on one hand, the rubber water stop can seal the gap between the blocking steel plate and the first-stage groove section, and the water seepage into the connecting gap between the first-stage groove section and the second-stage groove section is further reduced; on the other hand, two sides of the rubber waterstop are clamped and fixed by two separation steel plates, so that the bonding stability of the rubber waterstop with the primary groove section and the waterstop protrusion is improved.
Further setting the following steps: and a sealing structure glue layer is filled between the blocking steel plate and the side surface of the secondary groove section.
By adopting the technical scheme, the second-stage groove section and the first-stage groove section need to be connected into a whole underground continuous wall, so that the second-stage groove section and the first-stage groove section are designed to have the same thickness so as to improve the stability of the whole structure. Because the separation steel plate is pressed on the rubber waterstop, a gap with the same thickness as the rubber waterstop is formed between the separation steel plate and the side face of the second-stage groove section, a sealing structure glue layer is filled in the gap, the separation steel plate and the second-stage groove section are firmly bonded by the sealing structure glue layer, water seepage can be effectively prevented from entering a connecting joint between the first-stage groove section and the second-stage groove section, and the anti-seepage performance of the underground diaphragm wall is improved.
Further setting the following steps: the stagnant water is protruding to be followed the thickness direction of first phase groove section has buried a plurality of split bolts underground, split bolt runs through two on the first phase groove section both sides face the separation steel sheet and compress tightly two separation steel sheets on the side of first phase groove section with second phase groove section.
Through adopting above-mentioned technical scheme, bury underground the split bolt in the stagnant water arch, the split bolt passes the stagnant water arch and the second phase groove section that the later stage was pour and compresses tightly two separation steel sheets on the side of first phase groove section and second phase groove section, and the split bolt can play better connection to first phase groove section and second phase groove section to further strengthen the tight degree of being connected between separation steel sheet and first phase groove section, the second phase groove section, improve prevention of seepage water performance.
Further setting the following steps: the first-stage groove section is internally embedded with a connecting rib along the connecting direction of the first-stage groove section and the second-stage groove section, and the connecting rib exceeds the water stop bulge and extends into the second-stage groove section.
Through adopting above-mentioned technical scheme, bury the splice bar that extends to in the slot stage of two in the slot stage, the splice bar is connected into an organic whole with slot stage of two, makes slot stage of one and slot stage of two integral structure intensity higher, and anti extrusion performance is better.
Further setting the following steps: the second-stage groove section comprises a steel reinforcement cage framework and a concrete wall body poured on the steel reinforcement cage framework, and the connecting ribs extend to and are welded and fixed with the steel reinforcement cage framework.
By adopting the technical scheme, the connecting ribs in the first-stage groove section extend to be welded with the steel bar cage framework in the second-stage groove section, so that stress can be mutually transmitted by the stressed steel bars in the first-stage groove section and the second-stage groove section, the stress concentration in the first-stage groove section and the second-stage groove section is reduced, and the mechanical property of the underground continuous wall is further improved.
To sum up, the utility model discloses a beneficial technological effect does:
(1) the water stopping bulges are integrally formed on the two end surfaces of the first-stage groove section, and the rubber water stopping belts are bonded on the end surfaces of the first-stage groove section and the surfaces of the water stopping bulges, so that the water stopping bulges have a blocking effect on water seepage outside the underground diaphragm wall pit, the water seepage is difficult to cross the water stopping bulges and enter the inner side of the underground diaphragm wall, the rubber water stopping belts play a role in sealing and water stopping between the first-stage groove section and the second-stage groove section, and the anti-seepage effect is better;
(2) two side faces of the joint of the first-stage groove section and the second-stage groove section are respectively provided with a blocking steel plate, the blocking steel plates are tightly pressed on the side faces of the first-stage groove section and the second-stage groove section through split bolts, and the two blocking steel plates protect the joint seam between the first-stage groove section and the second-stage groove section, so that the water seepage outside a foundation pit is further reduced and the water seepage is reduced;
(3) the first-stage groove section is embedded with connecting ribs extending into the second-stage groove section, the connecting ribs are welded and fixed with a reinforcement cage framework in the second-stage groove section, the first-stage groove section and the second-stage groove section are connected into a whole by the connecting ribs, stress reinforcing steel bars in the first-stage groove section and the second-stage groove section can mutually transmit stress, stress concentration in the first-stage groove section and the second-stage groove section is reduced, and further mechanical properties of the underground diaphragm wall are improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is an enlarged schematic view of a region a in fig. 1.
Reference numerals: 1. a first stage trough section; 2. a second stage trough section; 3. a seal assembly; 4. water stopping bulges; 5. a rubber waterstop; 6. separating a steel plate; 7. a sealing structure glue layer; 8. oppositely pulling the bolts; 9. connecting ribs; 10. a reinforcement cage framework; 11. a concrete wall.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
An anti-seepage structure of an underground diaphragm wall is shown in figure 1 and comprises a plurality of first-stage groove sections 1 and second-stage groove sections 2 which are alternately connected. The first-stage groove sections 1 are walls which are poured on the periphery of the foundation pit at intervals in the early stage, the second-stage groove sections 2 are walls which are poured between the two first-stage groove sections 1 after the first-stage groove sections 1 are dried and hardened, and the first-stage groove sections 1 and the second-stage groove sections 2 are the same in thickness and are connected into an integral structure to form the underground continuous wall. The both ends face that first phase groove section 1 and second phase groove section 2 are connected all is provided with seal assembly 3, and seal assembly 3 includes stagnant water arch 4 and rubber waterstop 5, and stagnant water arch 4 be with first phase groove section 1 integrated into one piece and along the square rectangular of 1 direction of height extension of first phase groove section, and rubber waterstop 5 bonds on first phase groove section 1 and the protruding 4 surfaces of stagnant water.
Two sides of the rubber water stop 5 extend to two side faces of the adhered groove sections, in order to further enhance the water-resisting effect, two side faces of the joint of the first-stage groove section 1 and the second-stage groove section 2 are respectively fixed with a blocking steel plate 6, and the blocking steel plates 6 are pressed on the rubber water stop 5 on the side faces of the first-stage groove section 1. And a sealing structure glue layer 7 is filled between the separation steel plate 6 and the side surface of the second-stage groove section 2, and the thickness of the sealing structure glue layer 7 is the same as that of the rubber water stop 5 adhered to the side surface of the first-stage groove section 1.
The protruding 4 infiltration of stagnant water has the separation effect to the infiltration in underground continuous wall hole outside, and it is inboard to make the infiltration be difficult to cross the protruding 4 entering underground continuous wall of stagnant water, and separation steel sheet 6, rubber waterstop 5 and seal structure glue film 7 play sealed water proof effect between first phase groove section 1 and second phase groove section 2, and the antiseep effect is better.
As shown in fig. 2, a plurality of tie bolts 8 are embedded in the water stop protrusion 4 along the thickness direction of the first groove section 1, and the tie bolts 8 are uniformly distributed along the length direction of the first groove section. The split bolt 8 penetrates through the two separation steel plates 6 on the two side faces of the first-stage groove section 1, and the two separation steel plates 6 are tightly pressed on the side faces of the first-stage groove section 1 and the second-stage groove section 2 through the two nuts.
The connecting rib 9 is buried in the first-stage groove section 1 along the connecting direction of the first-stage groove section 1 and the second-stage groove section 2, and the connecting rib 9 exceeds the water stopping protrusion 4 and extends into the second-stage groove section 2. The second-stage groove section 2 comprises a reinforcement cage framework 10 and a concrete wall 11 poured on the reinforcement cage framework 10, and the connecting ribs 9 extend to be welded and fixed with the reinforcement cage framework 10. The reinforcement cage framework 10 is a common structure in the construction industry, and is not described herein.
The implementation principle and the beneficial effects of the embodiment are as follows: integrally formed water stopping protrusions 4 are arranged on two end faces of the first-stage groove section 1, rubber water stopping belts 5 are bonded on the surfaces of the end face of the first-stage groove section 1 and the water stopping protrusions 4, the water stopping protrusions 4 have a blocking effect on water seepage outside the underground diaphragm wall pit, the water seepage is difficult to cross the water stopping protrusions 4 to enter the inner side of the underground diaphragm wall, the rubber water stopping belts 5 play a role in sealing and water stopping between the first-stage groove section 1 and the second-stage groove section 2, and the anti-seepage effect is better. Reach sealed antiseep effect through stagnant water arch 4 and rubber waterstop 5, stagnant water arch 4 and one-stage groove section 1 integrated into one piece construction convenience, the bonding construction of rubber waterstop 5 is also simple easily to be operated, need not follow-up dry hardening time limit for a project to shorten construction cycle, reduce construction cost.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. Underground continuous wall antiseep structure includes a plurality of alternate connection's first phase groove section (1) and second phase groove section (2), its characterized in that: first phase groove section (1) with the both ends face that second phase groove section (2) are connected all is equipped with seal assembly (3), seal assembly (3) are including stagnant water arch (4) and rubber waterstop (5), stagnant water arch (4) with first phase groove section (1) integrated into one piece, rubber waterstop (5) bonding is in first phase groove section (1) terminal surface with stagnant water arch (4) surface.
2. The underground diaphragm wall leakage prevention structure according to claim 1, wherein: and barrier steel plates (6) are fixed on two side surfaces of the joint of the first-stage groove section (1) and the second-stage groove section (2).
3. The underground diaphragm wall leakage prevention structure according to claim 2, wherein: two sides of the rubber water stop (5) respectively extend to and are bonded on two side faces of the primary groove section (1), and the blocking steel plate (6) is pressed on the rubber water stop (5).
4. The underground diaphragm wall leakage prevention structure according to claim 2 or 3, wherein: and a sealing structure glue layer (7) is filled between the blocking steel plate (6) and the side surface of the secondary groove section (2).
5. The underground diaphragm wall leakage prevention structure according to claim 4, wherein: the stagnant water is protruding (4) are followed the thickness direction of first phase groove section (1) is buried underground and is had a plurality of split bolts (8), split bolt (8) run through two on first phase groove section (1) both sides face separation steel sheet (6) and compress tightly two separation steel sheet (6) on the side of first phase groove section (1) with second phase groove section (2).
6. The underground diaphragm wall leakage prevention structure according to claim 1, wherein: follow in first phase groove section (1) with second phase groove section (2) direction of connection has buried splice bar (9) underground, splice bar (9) surpass stagnant water arch (4) and extend to in the second phase groove section (2).
7. The underground diaphragm wall leakage prevention structure according to claim 6, wherein: second phase groove section (2) include steel reinforcement cage skeleton (10) and pour concrete wall (11) on steel reinforcement cage skeleton (10), splice bar (9) extend to with steel reinforcement cage skeleton (10) welded fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921774952.3U CN211006726U (en) | 2019-10-21 | 2019-10-21 | Underground continuous wall antiseep structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921774952.3U CN211006726U (en) | 2019-10-21 | 2019-10-21 | Underground continuous wall antiseep structure |
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| CN211006726U true CN211006726U (en) | 2020-07-14 |
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| CN201921774952.3U Active CN211006726U (en) | 2019-10-21 | 2019-10-21 | Underground continuous wall antiseep structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894020A (en) * | 2020-07-17 | 2020-11-06 | 江西建工第二建筑有限责任公司 | Underground continuous wall provided with water stop component for blocking permeation path |
| CN115928806A (en) * | 2023-01-13 | 2023-04-07 | 水利部交通运输部国家能源局南京水利科学研究院 | Water stopping device and water stopping method for underground concrete diaphragm wall |
-
2019
- 2019-10-21 CN CN201921774952.3U patent/CN211006726U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894020A (en) * | 2020-07-17 | 2020-11-06 | 江西建工第二建筑有限责任公司 | Underground continuous wall provided with water stop component for blocking permeation path |
| CN115928806A (en) * | 2023-01-13 | 2023-04-07 | 水利部交通运输部国家能源局南京水利科学研究院 | Water stopping device and water stopping method for underground concrete diaphragm wall |
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