CN211228460U - Frame format underground continuous wall groove section structure - Google Patents
Frame format underground continuous wall groove section structure Download PDFInfo
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- CN211228460U CN211228460U CN201922154210.7U CN201922154210U CN211228460U CN 211228460 U CN211228460 U CN 211228460U CN 201922154210 U CN201922154210 U CN 201922154210U CN 211228460 U CN211228460 U CN 211228460U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 66
- 239000010959 steel Substances 0.000 claims abstract description 66
- 230000002787 reinforcement Effects 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 47
- 238000002347 injection Methods 0.000 claims description 40
- 239000007924 injection Substances 0.000 claims description 40
- 239000002689 soil Substances 0.000 claims description 14
- 238000010276 construction Methods 0.000 abstract description 15
- 239000004567 concrete Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 10
- 239000004927 clay Substances 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000845 cartilage Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
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Abstract
The utility model relates to a frame format underground continuous wall groove section structure belongs to underground continuous wall grooving technical field, and it is including first phase groove and the second phase groove that is used for placing the steel reinforcement cage, first phase groove and second phase groove intercrossing overlap the setting, and first phase groove includes with second phase groove intercrossing overlap expand the groove with parallel arrangement in the groove that prolongs that expands the groove both ends, the groove width that expands the groove is greater than the groove width that prolongs the groove, the groove width that prolongs the groove and the groove width in second phase groove. The expanded groove is arranged at the overlapping joint, so that hole collapse which is easy to occur in conventional cross-shaped groove section construction is avoided, the thickness of a wall body at a node is increased, and the rigidity of the node is improved.
Description
Technical Field
The utility model belongs to the technical field of the construction technology of underground continuous wall grooving and specifically relates to a frame format underground continuous wall groove section structure is related to.
Background
The frame-type underground continuous wall, namely the underground longitudinal and transverse walls, can be used as a maintenance structure of a foundation pit and also can be used as a vertical bearing structure. The underground longitudinal and transverse walls are constructed by carrying out sectional type grooving firstly and then pouring and connecting in sections to form a closed reinforced concrete enclosure structure.
In the construction and grooving process of the existing underground longitudinal and transverse wall, due to the fact that the underground longitudinal and transverse wall has a cross-shaped structure, a cross-shaped groove section needs to be excavated on a soil layer, and the cross-shaped groove end is easy to collapse in the construction process. Thereby bringing great potential safety hazard to ground equipment and personnel.
Therefore, a new technical solution is needed to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a frame format underground continuous wall groove section structure expands the groove through setting up in overlapping handing-over department, avoids the easy hole of collapsing that takes place of conventional cross groove section construction, increases node wall thickness simultaneously, improves node rigidity.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a frame format underground continuous wall groove section structure, is including first phase groove and second phase groove that is used for placing the steel reinforcement cage, first phase groove and second phase groove intercrossing overlap the setting, first phase groove include with second phase groove intercrossing overlap expand the groove with parallel arrangement in the groove that prolongs at expanding the groove both ends, the groove width that expands the groove is greater than the groove width that prolongs the groove, the groove width that prolongs the groove and the groove width in second phase groove.
By adopting the technical scheme, the groove width at the crossed and overlapped part of the first-stage groove and the second-stage groove is wide by arranging the first-stage groove, the expanded groove and the joint part of the second-stage groove and the extended groove are in a step shape, hole collapse which is easy to occur in conventional cross groove section construction is avoided, the thickness of a wall body at a node is increased, and the rigidity of the node is improved.
The utility model discloses further set up to: the groove width of the second-stage groove is equal to the wall width.
Through adopting above-mentioned technical scheme, through the groove width that sets up second phase groove to avoid the inconvenience of overexcavation backfill, reduce construction cost simultaneously.
The utility model discloses further set up to: the length of the expanding groove is at least three times of the wall width, and the second-stage groove is positioned in the middle of the expanding groove.
Through adopting above-mentioned technical scheme, through setting up the length that expands the groove to conveniently expand the preparation of inslot steel reinforcement cage, the second phase groove sets up in expanding the groove middle part, thereby makes the second phase groove lateral wall and expand the interval between the groove tip and equal, thereby makes things convenient for transferring of steel reinforcement cage.
The utility model discloses further set up to: the total length of the secondary groove is not more than half of the length of the primary groove.
Through adopting above-mentioned technical scheme, through the length that sets up second phase groove to guarantee to expand the intensity of the step face of groove and second phase groove handing-over department, avoid handing-over department and not excavate the too big and lead to its intensity to weaken between the soil layer.
The utility model discloses further set up to: the both ends in first phase groove and second phase groove all are equipped with joint Assembly, joint Assembly sets up in the groove section and its one side that deviates from the steel reinforcement cage contradicts with not opening the soil layer.
Through adopting above-mentioned technical scheme, through setting up the joint Assembly to separate groove section and trenchless soil layer, make and pour in-process concrete and trenchless soil layer and separate, avoid influencing the normal construction of next groove section and adjacent groove section steel reinforcement cage rigid connection's intensity.
The utility model discloses further set up to: the joint assembly comprises a convex joint box and H-shaped steel arranged between the joint box and a reinforcement cage, the H-shaped steel is fixedly welded with the reinforcement cage, and the joint box comprises a base part abutting against an un-excavated soil layer and a convex part inserted in the H-shaped steel.
Through adopting above-mentioned technical scheme, through setting up joint case and H shaped steel grafting combination, both guaranteed the rigidity of joint department, the joint case has reduced the influence of the incompact of overexcavation backfill simultaneously, can use with the steel sheet combines again, reduces the degree of difficulty of joint case when playing to pull out.
The utility model discloses further set up to: the width of basal portion equals to the groove width who prolongs the groove, the width of convex part is less than the height of H shaped steel, the lateral wall of convex part is contradicted with the inner wall of H shaped steel and is laminated.
Through adopting above-mentioned technical scheme, through the width that sets up joint case basal portion to guarantee that the joint case is at the groove section stable erection, through the frame degree that sets up the joint case convex part, guarantee convex part and H shaped steel grafting conflict, guarantee that the joint case contradicts to H shaped steel's stability.
The utility model discloses further set up to: the vertical fixed water injection hose that is equipped with in both sides middle part of H shaped steel, the diameter of water injection hose is greater than the clearance between H shaped steel both sides and the groove section lateral wall.
Through adopting above-mentioned technical scheme, through setting up the water injection hose, utilize the good elastic deformation ability of water injection hose, can compress tightly on the groove section lateral wall after it is filled with water to separate the concrete, prevent that the concrete from taking place from the condition of H shaped steel both sides around flowing.
To sum up, the utility model discloses a beneficial technological effect does: the node between the expanded groove and the extension groove and the second-stage groove is in a step shape by arranging the expanded groove, so that the rigidity of the node is improved, hole collapse which is easy to occur in the construction process of the traditional cross-shaped groove section is avoided, meanwhile, the thickness of a wall body at the overlapped joint is increased, the water injection hose is arranged between the two sides of the H-shaped steel and the side wall of the groove section, the water injection hose is ensured to be tightly pressed on the side wall of the groove section by utilizing the good elastic deformation capacity of the water injection hose, the concrete is separated by the water injection hose, and the phenomenon of concrete streaming is avoided; through the combination of the joint box which is in a convex shape and the H-shaped steel, the rigidity of the joint is guaranteed, the influence of over-excavation and backfilling incompact is reduced, and the difficulty of the joint box during pulling up is reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of a part of the structure of the present invention, mainly showing the structure of the joint assembly.
In the figure, 1, first phase groove; 11. expanding the groove; 12. a groove is extended; 2. a second-stage groove; 3. a joint assembly; 31. a joint box; 311. a base; 312. a convex portion; 32. h-shaped steel; 33. a water injection hose; 4. and (3) clay.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a frame format underground continuous wall groove section structure, including first phase groove 1 and second phase groove 2 that is used for placing the steel reinforcement cage, first phase groove 1 overlaps the setting with second phase groove 2 intercrossing, and first phase groove 1 and second phase groove 2 mutually perpendicular cross arrangement in this embodiment. In order to avoid the hole collapse phenomenon at the joint of the first-stage groove 1 and the second-stage groove 2, the first-stage groove 1 comprises an expanding groove 11 which is overlapped with the second-stage groove 2 in a crossed mode and extending grooves 12 which are arranged at two ends of the expanding groove 11 in parallel, the groove width of the expanding groove 11 is larger than that of the extending groove 12, and the groove width of the extending groove 12 is equal to that of the second-stage groove 2, so that the joint of the expanding groove 11 and the second-stage groove 2 and the joint of the extending groove 12 are in a step shape, the hole collapse which is easy to occur in conventional cross-shaped groove section construction is avoided, the thickness of a wall body at a node is increased, and the rigidity of the.
Referring to fig. 1, in order to avoid inconvenience caused by over-excavation backfill, the groove width of the second-stage groove 2 is equal to the wall width, and meanwhile, the construction cost is reduced. For the preparation of conveniently corresponding the 11 end steel reinforcement cages of enlarged groove, the length of enlarged groove 11 is the triple of wall width at least, and the length of enlarged groove 11 is the triple of wall width in this embodiment, and second phase groove 2 is located the middle part of enlarged groove 11 to make the interval between 2 lateral walls in second phase groove and the 11 both ends lateral walls in enlarged groove just be a wall width, thereby make things convenient for the preparation of this part steel reinforcement cage.
Referring to fig. 1, for the quality that guarantees the groove section and pour, the both ends in first phase groove 1 and second phase groove 2 all are equipped with joint Assembly 3, and joint Assembly 3 keeps apart the groove section with not excavating the soil layer, avoids influencing the normal construction of next groove section and adjacent groove section steel reinforcement cage rigid connection's intensity. In order to ensure the safe construction of the groove section, the first-stage groove 1 is a complete groove section, the length of the groove section is less than or equal to 6m, the width of the expanded groove 11 is greater than 400mm of the wall width, and the extension groove 12 is positioned in the middle of the expanded groove 11, so that the width of each side of the expanded groove 11 is greater than 200mm of the wall width, the rigidity of the groove hole at the joint is ensured, and the increase of the using amount of a reinforcement cage and concrete caused by excessive overexcavation is avoided. The length of the secondary slot 2 is at least the frame of the expanded slot 11 plus the height of the joint component 3, so that the installation of the joint component 3 is ensured, and the total length of the secondary slot 2 is not more than half of the length of the primary slot 1. The length of the reinforcement cage in the direction of the first-stage groove 1 is arranged according to the length of the first-stage groove 1, and the width is equal to the width of the first-stage groove 1 minus 80mm (total 160 mm) on two sides of the groove width.
Referring to fig. 1 and 2, joint subassembly 3 includes with the fixed joint case 31 of contradicting of trenchless soil layer and set up the H shaped steel 32 in the groove section, joint case 31 and H shaped steel 32 are vertical to be set up in the groove section, and H shaped steel 32 deviates from soil layer one side with joint case 31 and contradicts, and H shaped steel 32 and steel reinforcement cage welded fastening to guarantee the joint strength between H shaped steel 32 and the steel reinforcement cage. The joint box 31 is arranged in a convex shape, the joint box 31 comprises a base part 311 abutting against an unearthed soil layer and a convex part 312 inserted in the H-shaped steel 32, and the convex part 312 is inserted in the H-shaped steel 32, so that the joint box 31 can well support the H-shaped steel 32. The length of the joint component 3 is determined by the excavation depth of the groove section, namely the height of the wall body, in order to ensure the stability of the installation of the joint box 31 in the groove section, the width of the base part 311 is equal to the groove width of the extension groove 12, the width of the convex part 312 is smaller than the height of the H-shaped steel 32, and the side wall of the convex part 312 is abutted and attached to the inner wall of the H-shaped steel 32.
Referring to fig. 2, for avoiding underground continuous wall at the pouring in-process, the concrete is from H shaped steel 32's both sides around flowing, and joint assembly 3 still includes vertical water injection hose 33 that sets up between H shaped steel 32 both sides wall and groove section inner wall, the utility model discloses well water injection hose 33 adopts high-pressure hosepipe, utilizes the good elastic deformation ability of water injection hose 33, after steel reinforcement cage transfers the groove section in, through carrying out high-pressure water injection to water injection hose 33 for water injection hose 33 compresses tightly on the groove section lateral wall, thereby separates the concrete, prevents the emergence of concrete around flowing.
Referring to fig. 2, in order to facilitate the installation of the water injection cartilage pipe, two water injection hoses 33 are fixedly arranged at the middle part of the H-shaped steel 32. In order to ensure the connection strength between the water injection hose 33 and the H-shaped steel 32, AB glue is used for adhering the H-shaped steel 32 and the water injection hose 33. The lower end of the water injection hose 33 is tightly sealed, so that water leakage in the construction process is avoided. The distance between the diameter H-shaped steel 32 of the water injection hose 33 and the side wall of the groove section enables the water injection hose 33 to be fully filled in the gap between the H-shaped steel 32 and the side wall of the groove section after being filled with water, and concrete flowing around is better avoided. In order to avoid the deviation of the H-shaped water injection process, the two water injection hoses 33 are injected with water at the same time and at the same water injection speed, and the upper ends of the water injection hoses 33 are sealed by steel wires and the like after being filled with water.
Referring to fig. 1 and 2, for guaranteeing to carry out concrete placement's in-process to the steel reinforcement cage, water injection hose 33 keeps vertical state, and it has clay 4 to fill between joint box 31, H shaped steel 32, water injection hose 33 and the groove section lateral wall, thereby deviates from steel reinforcement cage one side to support water injection hose 33 through setting up clay 4, avoids water injection hose 33 to receive the pressure of concrete and takes place the bending, thereby influences water injection hose 33's choked flow effect. Meanwhile, the clay 4 is filled to effectively ensure the tight combination between the joint box 31 and the H-shaped steel 32.
The utility model discloses a concrete implementation process: grooving by using a grooving machine according to the size, firstly excavating a first-stage groove 1, then excavating a second-stage groove 2, then installing the convex part 312 of the joint box 31 into the groove section towards the side departing from the unearthed soil layer, and enabling the side wall of the base part 311 of the joint box 31 to be abutted against the soil layer. And then welding and binding the reinforcement cage at the joint, welding the H-shaped steel 32 on the reinforcement cage, simultaneously lowering the reinforcement cage and the H-shaped steel 32 into the groove section after cooling the reinforcement cage, paying attention to the embedding between the H-shaped steel 32 and the joint box 31 in the lowering process, and simultaneously ensuring that the water injection hose 33 is in a vacuumizing and shrinking state. After the steel reinforcement cage and the H-shaped steel 32 are placed downwards, according to the embedding condition of the H-shaped steel 32 and the joint box 31, clay 4 is filled in the gap between the joint of the H-shaped steel 32 and the joint box 31 to fill the gap. Next, the two water injection hoses 33 are filled with water at a higher rate than the water injection, and the water injection hoses 33 are filled with water at the same rate, and the upper ends of the water injection hoses 33 are sealed with a wire or the like. And after the detection is correct, concrete pouring is carried out on the groove section.
After concrete is poured and cured, since the joint box 31 is not in direct contact with the concrete, the joint box 31 is directly pulled up, water in the water injection hose 33 is pumped out, the water injection hose 33 is in a contraction state, and then the construction of the next groove section can be carried out.
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 (8)
1. The utility model provides a frame format underground continuous wall groove section structure which characterized in that: including first phase groove (1) and second phase groove (2) that are used for placing the steel reinforcement cage, first phase groove (1) and second phase groove (2) intercrossing overlap the setting, first phase groove (1) include with second phase groove (2) cross the groove (11) and parallel arrangement in the groove (12) that extend at expanding groove (11) both ends, the groove width that extends groove (11) is greater than the groove width that extends groove (12), the groove width that extends groove (12) and second phase groove (2) the groove width.
2. The frame format underground continuous wall channel section structure of claim 1, wherein: the groove width of the second-stage groove (2) is equal to the wall width.
3. A frame format underground continuous wall channel section structure according to claim 2, wherein: the length of the expanded groove (11) is at least three times of the wall width, and the secondary groove (2) is positioned in the middle of the expanded groove (11).
4. The frame format underground continuous wall channel section structure of claim 1, wherein: the total length of the secondary groove (2) is not more than half of the length of the primary groove (1).
5. The frame format underground continuous wall channel section structure of claim 1, wherein: the both ends in first phase groove (1) and second phase groove (2) all are equipped with joint Assembly (3), joint Assembly (3) set up in the groove section and its one side that deviates from the steel reinforcement cage contradicts with not opening the soil layer.
6. The frame format underground continuous wall channel section structure of claim 5, wherein: the joint component (3) comprises a convex joint box (31) and H-shaped steel (32) arranged between the joint box (31) and a reinforcement cage, the H-shaped steel (32) is fixedly welded with the reinforcement cage, and the joint box (31) comprises a base part (311) abutting against an unearthed soil layer and a convex part (312) inserted into the H-shaped steel (32).
7. The frame format underground continuous wall channel section structure of claim 6, wherein: the width of the base part (311) is equal to the width of the extension groove (12), the width of the convex part (312) is smaller than the height of the H-shaped steel (32), and the side wall of the convex part (312) is abutted and attached to the inner wall of the H-shaped steel (32).
8. The frame format underground continuous wall channel section structure of claim 6, wherein: the vertical fixed water injection hose (33) that is equipped with in both sides middle part of H shaped steel (32), the diameter of water injection hose (33) is greater than the clearance between H shaped steel (32) both sides and the groove section lateral wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922154210.7U CN211228460U (en) | 2019-12-04 | 2019-12-04 | Frame format underground continuous wall groove section structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922154210.7U CN211228460U (en) | 2019-12-04 | 2019-12-04 | Frame format underground continuous wall groove section structure |
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| CN211228460U true CN211228460U (en) | 2020-08-11 |
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| CN201922154210.7U Active CN211228460U (en) | 2019-12-04 | 2019-12-04 | Frame format underground continuous wall groove section structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726651A (en) * | 2020-12-31 | 2021-04-30 | 四川交投建设工程股份有限公司 | Connecting structure of underground frame foundation |
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2019
- 2019-12-04 CN CN201922154210.7U patent/CN211228460U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726651A (en) * | 2020-12-31 | 2021-04-30 | 四川交投建设工程股份有限公司 | Connecting structure of underground frame foundation |
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