CN112502181A - Foundation structure with balanced settlement function and construction method thereof - Google Patents
Foundation structure with balanced settlement function and construction method thereof Download PDFInfo
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- CN112502181A CN112502181A CN202011457178.0A CN202011457178A CN112502181A CN 112502181 A CN112502181 A CN 112502181A CN 202011457178 A CN202011457178 A CN 202011457178A CN 112502181 A CN112502181 A CN 112502181A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/34—Foundations for sinking or earthquake territories
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/18—Making embankments, e.g. dikes, dams
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/01—Flat foundations
- E02D27/013—Shuttering specially adapted therefor
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Abstract
The invention discloses a foundation structure with a balanced settlement function and a construction method thereof, wherein the foundation structure comprises a concrete sinking platform main body, concrete upright posts and ground beams, and an operation area is formed between the plurality of ground beams and the concrete upright posts; the concrete sinking platform comprises a sinking main body arranged in an operation area, wherein the sinking main body comprises a gravel filler, a template interlayer and a concrete stratum, the gravel filler is arranged in the operation area, the template interlayer comprises a side template, the side template is abutted against the concrete sinking platform main body, the template interlayer also comprises an upper template arranged at the top end of the side template, the periphery of a concrete upright post is provided with a buffer interlayer, the extending end of the upper template is abutted against the buffer interlayer and a ground beam, and a sinking platform space is formed between the upper template and the concrete sinking platform main body; the concrete ground layer is arranged on the gravel pack and the upper template, and the upper surface of the concrete ground layer is paved with a wear-resistant surface layer. The invention can realize the balance reduction of the foundation structure in the soft soil environment and ensure the flatness of the surface of the foundation structure.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a foundation structure with a balanced settlement function and a construction method thereof.
Background
In China, the coastal areas, the Yangtze river areas and the lake areas generally have weak soil environments, wherein the weak soil refers to silt, mucky soil, partial filling soil, miscellaneous filling soil and other high-compressibility soil. A foundation consisting of weak soil is called a weak soil foundation. Silt and mucky soil are collectively called soft soil in engineering, and have special physical and mechanical properties, so that the special unfavorable engineering properties are caused. The weak soil has the characteristics of high natural water content, large natural pore ratio, low shear strength, high compression coefficient and small permeability coefficient. The foundation bearing capacity under the action of external load is low, the foundation deformation is large, the uneven deformation is also large, and the deformation stability lasts for a long time.
For a factory building built in a weak soil environment, when the foundation of the factory building is settled, the joint of the concrete ground and the concrete upright column and the area nearby the joint can be fractured, so that the concrete ground is damaged, and the local part of the concrete ground can be acted by the radial supporting force of the concrete sinking platform main body in the process of settlement of the concrete ground, so that a lever structure is formed, the concrete bottom surface is inclined, and a slope surface with large inclination is formed. The concrete ground is broken or inclined, which affects the construction operation of the factory building and even creates potential safety hazard.
Therefore, there is a need in the market for a foundation structure having a balanced settlement function and a method for constructing the same to solve the above problems.
Disclosure of Invention
The invention aims to provide a foundation structure with a balanced settlement function and a construction method thereof, which can realize the balanced decline of the foundation structure in a soft soil environment and ensure the flatness of the surface of the foundation structure.
In order to achieve the purpose, the invention provides the following technical scheme: a foundation structure with a balanced settlement function comprises a concrete sinking platform main body, concrete upright posts vertically arranged on the concrete sinking platform main body and ground beams transversely arranged on the concrete sinking platform main body, wherein an operation area is formed between the plurality of ground beams and the concrete upright posts; the concrete sinking platform comprises a sinking main body and is characterized by further comprising a sinking main body arranged in an operation area, wherein the sinking main body comprises a gravel filler, a template interlayer and a concrete stratum, the gravel filler is arranged in the operation area, the template interlayer comprises side templates arranged around the periphery of the gravel filler, the side templates are abutted to the concrete sinking platform main body and form sliding fit with the concrete sinking platform main body, the top of the gravel filler is higher than the top of the concrete sinking platform main body, the template interlayer further comprises an upper template arranged at the top ends of the side templates, the upper template extends towards the direction close to a concrete stand column, a buffer interlayer is arranged on the periphery of the concrete stand column, the extending end of the upper template is abutted to the buffer interlayer and a ground beam, a sinking platform space is formed between the upper template and the concrete sinking platform main body, and the thickness of each of the side templates and the upper template is 20-30; the concrete ground layer is arranged on the gravel pack and the upper template, and the upper surface of the concrete ground layer is paved with a wear-resistant surface layer.
Through adopting above-mentioned technical scheme, install the template interlayer in the operation district between grade beam and concrete column, fill the rubble and set up in the space that template interlayer side form board encloses, form the heavy platform space between template interlayer cope match-plate pattern and the concrete heavy platform main part, the concrete floor sets up on rubble fill and cope match-plate pattern, the rubble is filled promptly, template interlayer and concrete floor form one can vertical settlement main part that subsides, should subside the whole vertical balanced decline along heavy platform space of main part, not only can not arouse concrete floor local fracture, and can not produce the slope, thereby the roughness of ground has been guaranteed, be favorable to the normal construction operation of factory building, guarantee production safety.
The invention is further provided that the side template is formed by enclosing a plurality of wood plates end to end.
Through adopting above-mentioned technical scheme, not only simple structure, the equipment is convenient, can reduce construction cost moreover.
The invention is further provided that each side of the side template is provided with a reinforcing rod along the arrangement direction of the plurality of wood boards.
Through adopting above-mentioned technical scheme, can promote the holistic intensity of side form board.
The invention is further provided that the buffer interlayer is a foam board, and the thickness of the buffer interlayer is 20-50 mm.
Through adopting above-mentioned technical scheme, not only can provide the displacement surplus when concrete stratum expend with heat and contract with cold, can avoid concrete stratum and concrete stand to produce the adhesion moreover, make concrete stratum balance gliding smoothly to guarantee the roughness in concrete stratum.
The distance between the side formwork and the concrete sinking platform main body is further set to be 90-110 mm.
Through adopting above-mentioned technical scheme, for the stiffener provides installation space, avoided reducing the friction that the side form received simultaneously.
The side part of the side template is provided with a support rod, the lower part of the support rod is provided with a triangular reinforcing part which is propped against the side template, and the outer end of the support rod is attached to the side wall of the ground beam.
Through adopting above-mentioned technical scheme, can not tightly promote the installation intensity of bracing piece, be convenient for moreover tie the steel wire and carry out the holistic support of rubble fill when being used for the gravel of packing in earlier stage.
The invention is further provided that a plurality of reinforcing steel bars are arranged on the upper template in a criss-cross manner.
Through adopting above-mentioned technical scheme, can the template interlayer link together, when laying concrete ground, because the effect of reinforcing bar, can promote the holistic compressive strength of concrete ground.
The invention is further arranged in such a way that a baffle is clamped between the concrete stratum and the buffer interlayer, and the upper end and the lower end of the baffle are respectively flush with the upper surface and the lower surface of the concrete stratum.
Through adopting above-mentioned technical scheme, can reduce the friction between concrete stratum and the buffering interlayer, do benefit to the concrete stratum and sink more smoothly.
The invention also provides a control method of the foundation structure with the balanced settlement function, which comprises the following steps:
s1, positioning and marking the ground to be processed along the ground beam and the concrete upright post, and dismantling the ground according to the marking to form an operation area on the ground;
s2, performing surface smoothing treatment on the inner side wall and the bottom surface of the operation area;
s3, arranging a buffer interlayer on the periphery of the concrete upright post;
s4, installing a formwork interlayer along the inner periphery of the operation area, forming a sinking platform space between an upper formwork of the formwork interlayer and the concrete sinking platform main body, and filling crushed stones with the diameter of 100-200 mm into a space surrounded by side formworks of the formwork interlayer to form a crushed stone filling part;
s5, erecting criss-cross steel bars on an upper template of the template interlayer, and extending the inner ends of the transversely laid steel bars to the upper part of the gravel pack;
s6, arranging support rods on side templates of the template interlayer, winding steel wires on the support rods, pulling two ends of the steel wires out to penetrate through a gap between the template interlayer and the ground beam and fixing the steel wires on the upper portion of the ground beam through foundation bolts, and shearing the steel wires after the gravel filling is stably placed for 7-15 days;
s7, filling concrete on the gravel pack and the upper template of the template interlayer to form a concrete stratum with the thickness of 190-210 mm, separating the concrete stratum from the buffer interlayer by using a baffle, and naturally airing the concrete stratum for 7-14 days;
and S8, paving a wear-resistant surface layer on the upper surface of the concrete floor.
By adopting the technical scheme, the balance decline of the foundation structure in the soft soil environment can be realized, and the flatness of the surface of the foundation structure is ensured.
The invention is further arranged that the gravel pack in step S4 is arranged in the following manner: the gravel with the large diameter is uniformly laid at the bottom in a space enclosed by the template interlayer side templates, the gravel with the small diameter is filled in a gap between the gravel with the large diameter to form a gravel layer, and multiple layers of gravel layers are repeatedly arranged along the vertical direction until the upper surface of the upper gravel layer is flush with the upper surface of the template interlayer upper template.
Through adopting above-mentioned technical scheme, can guarantee that the rubble is filled more level and smooth, enable the rubble to fill moreover inseparabler, do benefit to whole construction.
Drawings
FIG. 1 is a top view of the present invention as a whole;
FIG. 2 is a top view of the present invention during the laying of steel bars;
FIG. 3 is a top view of the present invention with the upper platen removed;
FIG. 4 is a schematic view of a hoisting structure of the support rod of the present invention;
fig. 5 is a schematic structural view of the sideform of the present invention when a reinforcing rod is mounted thereon.
In the figure: 1. a concrete sinking platform main body; 2. a concrete column; 3. a ground beam; 4. an operation area; 5. settling the main body; 6. filling broken stones; 7. a template interlayer; 8. a concrete formation; 9. a sideform; 10. mounting a template; 11. a buffer interlayer; 12. a sinking platform space; 13. a wear-resistant surface layer; 14. a reinforcing bar; 15. a support bar; 16. a triangular reinforcement; 17. reinforcing steel bars; 18. a baffle plate; 19. a steel wire; 20. and (7) anchor bolts.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): the invention provides a foundation structure with a balanced settlement function, which comprises a concrete sinking platform main body 1, concrete upright posts 2 vertically arranged on the concrete sinking platform main body 1 and ground beams 3 transversely arranged on the concrete sinking platform main body 1, wherein an operation area 4 is formed between the plurality of ground beams 3 and the concrete upright posts 2; the foundation structure further comprises a settlement main body 5 arranged in the operation area 4, wherein the settlement main body 5 comprises a gravel filler 6, a template interlayer 7 and a concrete stratum 8, the concrete stratum 8 is formed by cement pouring, the gravel filler 6 is arranged in the operation area 4, the template interlayer 7 comprises side templates 9 arranged around the periphery of the gravel filler 6, the side templates 9 are abutted to the concrete sinking platform main body 1 and form sliding fit with the concrete sinking platform main body 1, the top of the gravel filler 6 is higher than the top of the concrete sinking platform main body 1, the template interlayer 7 further comprises an upper template 10 arranged at the top end of the side templates 9, the upper template 10 extends towards the direction close to the concrete upright post 2, a buffer interlayer 11 is arranged at the periphery of the concrete upright post 2, the extending end of the upper template 10 is abutted to the buffer interlayer 11 and a ground beam 3, and a sinking platform space 12 is formed between the upper template 10 and the concrete sinking platform main body 1, the thickness of each of the side template 9 and the upper template 10 is 20-30 mm, and the side template 9 and the upper template 10 are both made of wood boards; the concrete stratum 8 is arranged on the gravel pack 6 and the upper template 10, the wear-resistant surface layer 13 is laid on the upper surface of the concrete stratum 8, the wear-resistant surface layer 13 can be made of epoxy resin wear-resistant floor paint, and the wear-resistant surface layer 13 has the advantages of corrosion resistance, wear resistance, skid resistance, small pollution, strong decoration and the like. The settlement main body 5 integrally descends along the vertical balance of the sinking platform space 12, so that the local fracture of a concrete stratum 8 cannot be caused, and the inclination cannot be generated, thereby ensuring the flatness of the foundation, facilitating the normal construction operation of a factory building and ensuring the production safety.
As shown in the attached drawing 5, the side form 9 is formed by joining and enclosing a plurality of wood boards end to end, so that the structure is simple, the assembly is convenient, and the construction cost can be reduced.
As shown in fig. 5, each side of the sideform 9 is provided with a reinforcing rod 14 along the arrangement direction of the plurality of wood boards, so that the overall strength of the sideform 9 can be improved.
Wherein, buffering interlayer 11 is the cystosepiment, and the thickness of buffering interlayer 11 is 20 ~ 50mm, not only can provide the displacement surplus when 8 expend with heat and contract with cold in concrete stratum, can avoid concrete stratum 8 and concrete column 2 to produce the adhesion moreover, makes concrete stratum 8 balance gliding smoothly to guarantee concrete stratum 8's roughness.
Wherein, the distance between side form 9 and the concrete sinking platform main part 1 is 90 ~ 110mm, provides installation space for stiffener 14, has avoided reducing the friction that side form 9 received simultaneously.
As shown in fig. 4 and 5, a support rod 15 is arranged on the side of the side formwork 9, a triangular reinforcement 16 abutting against the side formwork 9 is arranged on the lower portion of the support rod 15, a right-angle edge of the triangular reinforcement 16 is fixed on the support rod 15 through screws, the other right-angle edge of the triangular reinforcement 16 is fixed on the side formwork 9 through screws, the outer end of the support rod 15 is attached to the side wall of the ground beam 3, and when the sedimentation main body 5 integrally sediments, the outer end of the support rod 15 slides downwards along the side wall of the ground beam 3. This design is not tight can promote the installation intensity of bracing piece 15, and be convenient for tie steel wire 19 simultaneously with 19 with the rag bolt 20 be fixed in the grade beam 3 for carry out the holistic support of rubble fill 6 when filling the rubble earlier stage.
As shown in fig. 3, a plurality of reinforcing steel bars 17 are criss-cross arranged on the upper formwork 10, so that the formwork interlayers 7 can be connected together, and when a concrete stratum 8 is paved, the compressive strength of the whole concrete stratum 8 can be improved due to the effect of the reinforcing steel bars 17.
As shown in fig. 1, a baffle 18 is sandwiched between the concrete ground layer 8 and the buffer interlayer 11, and the upper and lower ends of the baffle 18 are flush with the upper and lower surfaces of the concrete ground layer 8, respectively. The structure can reduce the friction between the concrete stratum 8 and the buffer interlayer 11, and is beneficial to the smooth sinking of the concrete stratum 8.
The invention also provides a control method of the foundation structure with the balanced settlement function, which comprises the following steps:
s1, positioning and marking the ground to be processed along the ground beam and the concrete upright post, and dismantling the ground according to the marking to form an operation area on the ground;
s2, performing surface smoothing treatment on the inner side wall and the bottom surface of the operation area, namely smoothing the inner side wall and the bottom surface by using the surface protruding part and filling the surface recessed part;
s3, arranging a buffer interlayer on the periphery of the concrete upright post, and adhering the buffer interlayer on the concrete upright post by using glue;
s4, installing a formwork interlayer along the inner periphery of the operation area, forming a sinking platform space between an upper formwork of the formwork interlayer and the concrete sinking platform main body, and filling crushed stones with the diameter of 100-200 mm into a space surrounded by side formworks of the formwork interlayer to form a crushed stone filling part;
s5, erecting criss-cross steel bars on an upper template of the template interlayer, and extending the inner ends of the transversely laid steel bars to the upper part of the gravel pack;
s6, arranging support rods on side templates of the template interlayer, winding steel wires on the support rods, pulling two ends of each steel wire out to penetrate through a gap between the template interlayer and the ground beam and fixing the steel wires on the upper portion of the ground beam through foundation bolts, and after the gravel filling is stably placed for 7-15 days, ensuring the stability of the gravel filling and cutting the steel wires;
s7, filling concrete on the gravel pack and the upper template of the template interlayer to form a concrete stratum with the thickness of 190-210 mm, separating the concrete stratum from the buffer interlayer by using a baffle, and naturally airing the concrete stratum for 7-14 days;
and S8, paving a wear-resistant surface layer on the upper surface of the concrete floor.
By adopting the method, the balance reduction of the foundation structure in the soft soil environment can be realized, and the flatness of the surface of the foundation structure is ensured.
The setting mode of the gravel pack in the step S4 is as follows: the gravel with the large diameter is uniformly laid at the bottom in a space enclosed by the template interlayer side templates, the gravel with the small diameter is filled in a gap between the gravel with the large diameter to form a gravel layer, and multiple layers of gravel layers are repeatedly arranged along the vertical direction until the upper surface of the upper gravel layer is flush with the upper surface of the template interlayer upper template. The method can ensure that the gravel filling is smoother, can ensure that the gravel filling is tighter, and is beneficial to the whole construction.
Claims (10)
1. A foundation structure with a balanced settlement function comprises a concrete sinking platform main body (1), concrete upright posts (2) vertically arranged on the concrete sinking platform main body (1) and ground beams (3) transversely arranged on the concrete sinking platform main body (1), wherein an operation area (4) is formed between the plurality of ground beams (3) and the concrete upright posts (2); the method is characterized in that: still including setting up main part (5) that subsides in operation district (4), subside main part (5) including rubble fill (6), template interlayer (7) and concrete stratum (8), rubble fill (6) set up in operation district (4), template interlayer (7) are including enclosing side form board (9) of establishing in rubble fill (6) periphery, side form board (9) and concrete sinking platform main part (1) are inconsistent and the two constitutes sliding fit, the top of rubble fill (6) is higher than the top of concrete sinking platform main part (1), template interlayer (7) still including setting up cope match-plate pattern (10) on side form board (9) top, cope match-plate pattern (10) orientation is close to concrete stand (2) direction and extends, the periphery of concrete stand (2) is equipped with buffering interlayer (11), the extension end of cope match-plate pattern (10) with buffering interlayer (11) and grade beam (3) are inconsistent, a sinking platform space (12) is formed between the upper template (10) and the concrete sinking platform main body (1), and the thickness of each side template (9) and the thickness of each upper template (10) are both 20-30 mm; the concrete stratum (8) is arranged on the gravel pack (6) and the upper template (10), and the upper surface of the concrete stratum (8) is paved with a wear-resistant surface layer (13).
2. A foundation structure with a balanced settlement function as claimed in claim 1, wherein: the side templates (9) are formed by connecting and enclosing a plurality of wood plates end to end.
3. A foundation structure with a balanced settlement function as claimed in claim 2, wherein: and each side of the side template (9) is provided with a reinforcing rod (14) along the arrangement direction of the wood boards.
4. A foundation structure with a balanced settlement function as claimed in claim 1, wherein: the buffer interlayer (11) is a foam board, and the thickness of the buffer interlayer (11) is 20-50 mm.
5. A foundation structure with a balanced settlement function as claimed in claim 1, wherein: the distance between the side formwork (9) and the concrete sinking platform main body (1) is 90-110 mm.
6. A foundation structure with a balanced settlement function as claimed in claim 1, wherein: the side of side form board (9) is equipped with bracing piece (15), and bracing piece (15) lower part is equipped with triangle reinforcement (16) of propping on side form board (9), and the outer end of bracing piece (15) is laminated mutually with the lateral wall of grade beam (3).
7. A foundation structure with a balanced settlement function as claimed in claim 1, wherein: the upper template (10) is provided with a plurality of reinforcing steel bars (17) in a criss-cross manner.
8. A foundation structure with a balanced settlement function as claimed in claim 1, wherein: a baffle (18) is clamped between the concrete stratum (8) and the buffer interlayer (11), and the upper end and the lower end of the baffle (18) are flush with the upper surface and the lower surface of the concrete stratum (8) respectively.
9. The method for constructing a foundation structure with a balanced settlement function as claimed in any one of claims 1 to 9, wherein: the method comprises the following steps:
s1, positioning and marking the ground to be processed along the ground beam and the concrete upright post, and dismantling the ground according to the marking to form an operation area on the ground;
s2, performing surface smoothing treatment on the inner side wall and the bottom surface of the operation area;
s3, arranging a buffer interlayer on the periphery of the concrete upright post;
s4, installing a formwork interlayer along the inner periphery of the operation area, forming a sinking platform space between an upper formwork of the formwork interlayer and the concrete sinking platform main body, and filling crushed stones with the diameter of 100-200 mm into a space surrounded by side formworks of the formwork interlayer to form a crushed stone filling part;
s5, erecting criss-cross steel bars on an upper template of the template interlayer, and extending the inner ends of the transversely laid steel bars to the upper part of the gravel pack;
s6, arranging support rods on side templates of the template interlayer, winding steel wires on the support rods, pulling two ends of the steel wires out to penetrate through a gap between the template interlayer and the ground beam and fixing the steel wires on the upper portion of the ground beam through foundation bolts, and shearing the steel wires after the gravel filling is stably placed for 7-15 days;
s7, filling concrete on the gravel pack and the upper template of the template interlayer to form a concrete stratum with the thickness of 190-210 mm, separating the concrete stratum from the buffer interlayer by using a baffle, and naturally airing the concrete stratum for 7-14 days;
and S8, paving a wear-resistant surface layer on the upper surface of the concrete floor.
10. The method for constructing a foundation structure having a balanced settlement function as claimed in claim 9, wherein: the setting mode of the gravel pack in the step S4 is as follows: the gravel with the large diameter is uniformly laid at the bottom in a space enclosed by the template interlayer side templates, the gravel with the small diameter is filled in a gap between the gravel with the large diameter to form a gravel layer, and multiple layers of gravel layers are repeatedly arranged along the vertical direction until the upper surface of the upper gravel layer is flush with the upper surface of the template interlayer upper template.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011457178.0A CN112502181A (en) | 2020-12-10 | 2020-12-10 | Foundation structure with balanced settlement function and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011457178.0A CN112502181A (en) | 2020-12-10 | 2020-12-10 | Foundation structure with balanced settlement function and construction method thereof |
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| CN112502181A true CN112502181A (en) | 2021-03-16 |
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| CN202011457178.0A Pending CN112502181A (en) | 2020-12-10 | 2020-12-10 | Foundation structure with balanced settlement function and construction method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10195886A (en) * | 1997-01-14 | 1998-07-28 | Takenaka Komuten Co Ltd | Foundation construction method |
| CN206457856U (en) * | 2017-02-10 | 2017-09-01 | 浙江省城乡规划设计研究院 | A kind of ground crack resistence structure |
| CN210439627U (en) * | 2019-07-18 | 2020-05-01 | 厦门东翔工程设计有限公司 | Sinking-proof cracking structure for first floor |
-
2020
- 2020-12-10 CN CN202011457178.0A patent/CN112502181A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10195886A (en) * | 1997-01-14 | 1998-07-28 | Takenaka Komuten Co Ltd | Foundation construction method |
| CN206457856U (en) * | 2017-02-10 | 2017-09-01 | 浙江省城乡规划设计研究院 | A kind of ground crack resistence structure |
| CN210439627U (en) * | 2019-07-18 | 2020-05-01 | 厦门东翔工程设计有限公司 | Sinking-proof cracking structure for first floor |
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Application publication date: 20210316 |