Improved sump structure
By renovating the water collection pit structure on the basis of the existing raft slabs, adopting cushion concrete and raft concrete structures, combining the retained and added steel bar components, as well as the use of water stop rubber strips and steel plates, the problems of underground structure integrity and leakage prevention when adding water collection pits are solved, and more efficient construction and waterproofing effects are achieved.
Patent Information
- Application Number
- CN202422208831.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-10
AI Technical Summary
When adding water collection pits on the existing raft slab, how to ensure the integrity of the underground structure and effectively prevent leakage, especially in preventing water leakage in the newly added water collection pits and leakage of external groundwater.
The modified water collection structure is adopted, including a cushion concrete structure and a raft concrete structure, with grooves in the middle, and retained steel bar components are set up in the cushion concrete structure on both sides of the grooves. The new steel bar components extend to the water collection frame, and a cast cushion layer and a water collection concrete layer are set up on the outer periphery of the water collection frame, combining the use of water stop rubber strips and water stop steel plates.
Ensure more sufficient working surfaces, improve binding quality, shorten construction periods, and ensure the anti-seepage performance of the water collection well through effective waterproofing measures, better ensure the integrity of the underground structure and effectively prevent leakage.
Smart Images
Figure CN223034046U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building structures, in particular to a modified sump structure. Background Technique
[0002] The function of the sump is to collect rainwater, clear water or sewage in underground structures such as basements, pump pits or pools, and after the collection is completed, it is uniformly pumped out by a water pump. As a common component of underground structures, the sump plays an extremely important role in the daily use, operation and maintenance of basements, pump pits and pools. As an important structure of the raft foundation, generally, formwork is erected and steel bars are tied during the construction of the raft foundation, and it is poured and formed together with the raft foundation; however, in actual use, there are often situations where the number of sumps is insufficient and the water collection efficiency is low, or the pool needs to be expanded, or more water pumps need to be added to the pump pit. In the above situations, adding a new sump on the existing raft foundation has become a relatively common choice.
[0003] However, such underground structures are sensitive to leakage. On the one hand, it is necessary to prevent the water in the newly added sump, especially sewage, from leaking into the basement, and on the other hand, it is also necessary to prevent the groundwater outside the sump from leaking into the underground structure through the newly added sump. Therefore, how to add a new sump on the existing raft foundation, ensure its integrity and effectively prevent leakage has become an urgent problem to be solved. Summary of the Invention
[0004] Aiming at the deficiencies in the prior art, the utility model provides a modified sump structure, which can better ensure the integrity of the underground structure and effectively prevent leakage.
[0005] The technical solution adopted by the utility model is:
[0006] A modified sump structure, which includes a cushion concrete structure and a raft concrete structure arranged on the cushion concrete structure. A groove is arranged in the middle of the raft concrete structure, and reserved steel bar assemblies are arranged in the cushion concrete structures on both sides of the groove. The end parts of the reserved steel bar assemblies close to the groove are vertically provided with newly added steel bar assemblies. A sump frame body is arranged at the bottom of the cushion concrete structure, and the newly added steel bar assemblies extend into the sump frame body. A casting cushion is arranged on the periphery of the sump frame body, and a sump concrete layer is arranged between the sump frame body and the newly added steel bar assemblies.
[0007] Preferably, in the modified sump structure, the reserved steel bar assembly includes a plurality of first horizontal steel bars arranged horizontally and a first vertical steel bar arranged between the plurality of first horizontal steel bars.
[0008] Preferably, in the modified sump structure, the plurality of first horizontal steel bars are arranged at equal intervals and staggered, and the length difference between two adjacent first horizontal steel bars is 180 mm - 220 mm.
[0009] Preferably, in the modified sump structure, an interface agent layer is provided on the inner surface of the groove, and a water stop rubber strip is fixed in the interface agent layer by cement nails.
[0010] Preferably, in the modified sump structure, the newly added steel bar assembly includes a plurality of second horizontal steel bars arranged horizontally and a plurality of second vertical steel bars arranged vertically; the second vertical steel bars on both sides of the second horizontal steel bars are connected to the second horizontal steel bars and the first horizontal steel bars in sequence from bottom to top, and the second vertical steel bars in the middle of the second horizontal steel bars are arranged at equal intervals between the plurality of second horizontal steel bars, and the second horizontal steel bars and the plurality of vertically arranged second vertical steel bars form a frame structure matching the sump frame.
[0011] Preferably, in the modified sump structure, a first building surface layer and a first waterproof layer are sequentially arranged on the side of the interface agent layer away from the groove from outside to inside.
[0012] Preferably, in the modified sump structure, a second building surface layer and a second waterproof layer are arranged on the top and side walls of the raft concrete structure from inside to outside.
[0013] Advantages of the present utility model:
[0014] For the modified sump structure of the present utility model, after tying the reserved steel bar assembly and the newly added steel bar assembly, the newly added steel bar assembly is placed into the sump frame, which can ensure a more sufficient working surface, guarantee the tying quality and shorten the construction period. The water stop rubber strip can also be used together with the water stop steel plate to ensure the anti-seepage performance of the sump. The newly added sump of the present utility model can better ensure the integrity of the underground structure and effectively prevent leakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the original bottom plate of the present utility model.
[0016] Figure 2 It is a cutting schematic diagram of the original steel bars in the original bottom plate of the present utility model.
[0017] Figure 3 It is a schematic diagram of the connection between the reserved steel bar assembly and the newly added steel bar assembly of the present utility model.
[0018] Figure 4 It is a schematic diagram of the structure of the modified sump structure of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The present utility model will be further described below in conjunction with specific attached drawings and embodiments.
[0020] As Figures 1-4 , a modified sump structure, wherein: it includes a cushion concrete structure 2 and a raft concrete structure 1 arranged on the cushion concrete structure 2. A groove 11 is arranged in the middle of the raft concrete structure 1. Retained steel bar assemblies 3 are arranged in the cushion concrete structure 2 on both sides of the groove 11. Newly added steel bar assemblies 5 are vertically arranged at the ends of the retained steel bar assemblies 3 close to the groove 11. A sump frame 12 is arranged at the bottom of the cushion concrete structure 2. The newly added steel bar assemblies 5 extend into the sump frame 12. A casting cushion 7 is arranged on the outer periphery of the sump frame 12. A sump concrete layer 6 is arranged between the sump frame 12 and the newly added steel bar assemblies 5.
[0021] The retained steel bar assembly 3 includes a plurality of first horizontal steel bars 31 arranged horizontally and a first vertical steel bar 32 arranged between the plurality of first horizontal steel bars 31; the plurality of first horizontal steel bars 31 are arranged at equal intervals and staggered, and the length difference between two adjacent first horizontal steel bars 31 is 180 mm - 220 mm; an interface agent layer 8 is arranged on the inner surface of the groove 11, and a water stop rubber strip 9 is fixed in the interface agent layer through a cement nail 10.
[0022] The newly added steel bar assembly 5 includes a plurality of second horizontal steel bars 51 arranged horizontally and a plurality of second vertical steel bars 52 arranged vertically; the second vertical steel bars 52 on both sides of the second horizontal steel bar 51 are connected to the second horizontal steel bar 51 and the first horizontal steel bar 31 in sequence from bottom to top, and the second vertical steel bars 52 in the middle of the second horizontal steel bar 51 are arranged at equal intervals between the plurality of second horizontal steel bars 51. The second horizontal steel bars 51 and the plurality of vertically arranged second vertical steel bars 52 form a frame structure matching the sump frame 12; on the side of the interface agent layer 8 away from the groove 11, a first building surface layer and a first waterproof layer are arranged in sequence from outside to inside; a second building surface layer and a second waterproof layer are arranged on the top and side walls of the raft concrete structure 1 from inside to outside.
[0023] The construction method of the present utility model is as follows:
[0024] Step 1. Lay out lines on the existing raft foundation according to the size of the newly added sump. The layout range should comprehensively consider the size of the newly added sump and the size of the sump frame, and sufficient construction space should be left.
[0025] Step 2. As Figure 1 , determine the chiseling range of the raft concrete structure 1 and the cushion concrete structure 2 in the original bottom plate according to the layout result.
[0026] Step 3. Chisel off part of the cushion concrete structure 2 and the raft concrete structure 1, and take drainage measures during the construction process to prevent a large amount of groundwater from flowing into the underground structure;
[0027] Step 4. Determine the cutting range of the original steel bars 4. When cutting the original steel bars 4, the cutting surfaces cannot be set at the same position. Stagger the cutting surfaces of the original steel bars 4 by a distance of 180 mm - 220 mm to form the first horizontal steel bars 31;
[0028] Step 5. As Figure 2 , cut off the original steel bars 4 to form the retained steel bar assembly 3, and form a groove 11 on the cushion concrete structure 2;
[0029] Step 6. Chisel and wash the inner surface of the groove 11 of the raft concrete structure 1, and brush the interface agent 8 at the interface;
[0030] Step 7. Fix the water stop rubber strip 9 at the interface with cement nails 10, with the expansion surface of the water stop rubber strip facing the raft concrete structure 1;
[0031] Step 8. As Figure 3 , bind the newly added steel bar assembly 5, and weld the first horizontal steel bars 31 and the second vertical steel bars 52;
[0032] Step 9. As Figure 4 , form a pouring cushion 7 on the outer periphery of the sump frame 12, and form a sump concrete layer 6 between the sump frame 12 and the newly added steel bar assembly 5.
[0033] Step 10. Arrange the first building surface layer and the first waterproof layer in sequence from outside to inside on the side of the interface agent layer 8 away from the groove 11; arrange the second building surface layer and the second waterproof layer from inside to outside on the top and side walls of the raft concrete structure 1.
[0034] For the improved sump structure of the present utility model, after binding the retained steel bar assembly and the newly added steel bar assembly, put the newly added steel bar assembly into the sump frame, which can ensure a more sufficient working surface, guarantee the binding quality and shorten the construction period. The water stop rubber strip can also be used together with the water stop steel plate to ensure the anti-seepage performance of the sump. The newly added sump of the present utility model can better ensure the integrity of the underground structure.
[0035] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit them. Although the present utility model has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.
Claims
1. A modified sump structure, characterized in that: The invention comprises a cushion concrete structure (2) and a raft concrete structure (1) arranged on the cushion concrete structure (2), wherein a groove (11) is arranged in the middle of the raft concrete structure (1), and retained steel bar components (3) are arranged in the cushion concrete structure (2) on both sides of the groove (11), and newly added steel bar components (5) are arranged vertically at the ends of the retained steel bar components (3) close to the groove (11), a sump frame (12) is arranged at the bottom of the cushion concrete structure (2), and the newly added steel bar components (5) extend into the sump frame (12), a cast cushion layer (7) is arranged on the periphery of the sump frame (12), and a sump concrete layer (6) is arranged between the sump frame (12) and the newly added steel bar components (5).
2. The modified sump structure according to claim 1, characterized in that: The retained steel bar assembly (3) comprises a plurality of first horizontal steel bars (31) arranged horizontally and a first vertical steel bar (32) arranged between the plurality of first horizontal steel bars (31).
3. The modified sump structure according to claim 2, characterized in that: The plurality of first horizontal steel bars (31) are arranged equidistantly and staggered, and the length difference between two adjacent first horizontal steel bars (31) is 180 mm to 220 mm.
4. The modified sump structure according to claim 1, characterized in that: An interface agent layer (8) is provided on the inner surface of the groove (11), and a water-stop rubber strip (9) is fixed in the interface agent layer via cement nails (10).
5. The modified sump structure according to claim 2, characterized in that: The newly added steel bar assembly (5) comprises a plurality of second horizontal steel bars (51) arranged horizontally and a plurality of second vertical steel bars (52) arranged vertically; the second vertical steel bars (52) located on both sides of the second horizontal steel bars (51) are connected to the second horizontal steel bars (51) and the first horizontal steel bars (31) in order from bottom to top; the second vertical steel bars (52) located in the middle of the second horizontal steel bars (51) are equidistantly arranged between the plurality of second horizontal steel bars (51); the second horizontal steel bars (51) and the plurality of second vertical steel bars (52) arranged vertically form a frame structure that cooperates with the sump frame (12).
6. The modified sump structure according to claim 4, characterized in that: A first building surface layer and a first waterproof layer are sequentially arranged from the outside to the inside on the side of the interface agent layer (8) away from the groove (11).
7. The modified sump structure according to claim 1, characterized in that: The top and side walls of the raft concrete structure (1) are provided with a second building surface layer and a second waterproof layer from the inside to the outside.