Ramp structure based on backfill soil base layer at basement entrance and construction method
The ramp structure with retaining walls and reinforced concrete elements stabilizes the backfill soil at the basement entrance, preventing collapse and slippage by distributing forces and ensuring waterproofing integrity.
Patent Information
- Application Number
- CN202411434843.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2024-12-10
AI Technical Summary
The backfill soil at the basement entrance is prone to collapse and slippage due to instability, leading to changes in the ramp slope and potential waterproofing issues.
A ramp structure with symmetrically arranged retaining walls and reinforced concrete retaining walls separating the backfill soil into sections, supported by a steel mesh and concrete floor, with drainage ditches and a retaining ridge at the lowest end.
The structure stabilizes the backfill soil, preventing slope changes and ensuring effective waterproofing by distributing forces through reinforced concrete retaining walls, reducing the risk of collapse and slippage.
Smart Images
Figure CN119102152A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of basement backfilling, and in particular relates to a ramp structure based on a backfill soil base at a basement entrance and a construction method. Background Art
[0002] The finished surface of the basement entrance on the top plate of the basement structure is lower than the finished surface of the outdoor backfill soil. The construction method is that the ramp area needs to be backfilled and the concrete floor (with steel mesh inside) is poured. The waterproofing on the top plate of the basement cannot be effectively connected at the basement entrance, and there is a risk of leakage. There is a risk of collapse and slippage on the concrete floor on the backfill soil.
[0003] After the construction of the basement is completed, a ramp with a certain slope must be formed at the entrance of the basement. The ramp mainly relies on backfilling soil to find the slope, and then making a concrete surface layer before it can be used.
[0004] The specific method is to backfill all the soil on the top plate of the basement, and to level the slope at the ramp position to form the foundation of the ramp into the basement. The backfill soil on the ramp and other positions are in an integrated connected state. After being subjected to force in other parts (construction machinery driving), the backfill soil has a certain instability, which will cause the slope of the ramp to change and affect the subsequent quality.
[0005] The basement entrance is located on the basement roof. The structural surface at the entrance is the basement roof structural surface, and the basement roof needs to be covered with soil. The basement ramp entrance needs to be backfilled to make a slope, and then the concrete floor (with steel mesh inside) is poured. This leads to the risk of collapse and slippage of the concrete ramp on the backfill soil. Summary of the invention
[0006] In order to solve the problem that backfill soil at a basement entrance is prone to collapse and slippage risks, the present invention provides a ramp structure based on a backfill soil base at a basement entrance and a construction method.
[0007] The present invention adopts the following technical solution: a ramp structure based on a backfill soil base at the entrance of a basement, comprising: Retaining walls, the retaining walls are symmetrically arranged on both sides; A reinforced concrete retaining wall, wherein the reinforced concrete retaining wall is arranged between the retaining walls on both sides; Backfill soil, wherein the backfill soil is laid between the retaining walls on both sides; An underground ramp, wherein the underground ramp is arranged between the retaining walls on both sides; A retaining ridge is arranged at the lowest end of the basement ramp.
[0008] In some embodiments, the basement ramp is a concrete floor with a steel mesh inside, and the steel mesh is welded to the steel bars on the top of the retaining wall.
[0009] In some embodiments, the reinforced concrete retaining wall is cast by concrete, and a steel mesh is arranged inside the reinforced concrete retaining wall.
[0010] In some embodiments, the distance between any two adjacent reinforced concrete retaining walls is less than or equal to 6 m.
[0011] In some embodiments, a large angle is provided at the inner bottom of the reinforced concrete retaining wall to prevent overturning during backfilling.
[0012] In some embodiments, the retaining wall is a right-angled trapezoidal structure.
[0013] In some embodiments, the height difference between the highest point and the lowest point of the basement ramp is H, the height of the retaining wall is h, and 2H / 3≤h≤H.
[0014] In some embodiments, a first drainage ditch is set at the highest point of the basement ramp, and a second drainage ditch is set at the lowest point of the basement ramp.
[0015] A ramp construction method based on a backfill soil base at a basement entrance comprises: S1: Complete the construction of the basement; S2: After the basement construction is completed, the retaining walls on both sides are constructed at the entrance of the basement; S3: implant horizontal and vertical steel bars on both sides of the retaining wall; S4: Tie the horizontal and vertical steel bars into a steel mesh, and then pour concrete on the side formwork in front and behind the steel mesh; S5: Lay waterproof membrane on the outer surface of retaining wall and reinforced concrete retaining wall; S6: Lay backfill soil in the space formed between the retaining walls on both sides and multiple reinforced concrete retaining walls; S7: laying a steel mesh on the backfill soil, and tying the steel mesh to the retaining wall and the steel bars on the reinforced concrete retaining wall to form a whole; S8: Set up formwork and pour concrete to form a basement ramp.
[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention divides the traditional slope into multiple sections, each of which is separated by a reinforced concrete retaining wall. The backfill soil between each two reinforced concrete retaining walls is subjected to force independently, and the force transmission in the middle is borne by the reinforced concrete retaining wall, thereby avoiding mutual influence of the backfill soil, and then solving the problem that the slope of the ramp will change after other parts are subjected to force.
[0017] The invention has low investment cost and simple method. The basement roof covering soil and the ramp backfill soil are effectively separated, and the basement roof waterproofing is turned over on the retaining wall, and the waterproofing can form an intersection. The ramp concrete floor is connected to the retaining wall, and the ramp concrete floor can also form an effective rooting. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a top view of the ramp structure based on the backfill soil base at the basement entrance; Figure 2 This is the front view of the ramp structure based on the backfill soil base at the basement entrance; In the figure, 1-retaining wall, 2-reinforced concrete retaining wall, 3-first drainage ditch, 4-retaining ridge, 5-basement ramp, 6-second drainage ditch, 7-backfill soil. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0020] like Figure 1 , 2 As shown, a ramp structure based on a backfill soil base at the entrance of a basement includes: A retaining wall 1, wherein the retaining wall 1 is symmetrically arranged on both sides; A reinforced concrete retaining wall 2, wherein the reinforced concrete retaining wall 2 is arranged between the retaining walls 1 on both sides; Backfill soil 7, the backfill soil 7 is laid between the retaining walls 1 on both sides; An underground ramp 5, wherein the underground ramp 5 is arranged between the retaining walls 1 on both sides; The retaining ridge 4 is arranged at the lowest end of the basement ramp 5.
[0021] Among them, the retaining wall 1 is a traditional basement entrance ramp structure. In the present invention, a plurality of reinforced concrete retaining walls 2 are spaced between the retaining walls 1 on both sides, and the number of the reinforced concrete retaining walls 2 is related to the length of the ramp.
[0022] Specifically, the distance between any two adjacent reinforced concrete retaining walls 2 is less than or equal to 6m. If the distance is too large, it is easy to fail to achieve the purpose of separating the forces, and if the distance is too small, the cost is too high. After many experiments, the applicant believes that when the distance between two reinforced concrete retaining walls 2 is less than or equal to 6m, the purpose of separating the forces can be achieved and the construction cost can be guaranteed.
[0023] Specifically, the retaining wall 1 is a right-angled trapezoidal structure. The height difference between the highest point and the lowest point of the basement ramp 5 is H, the height of the retaining wall 1 is h, and 2H / 3≤h≤H. Ensuring the height of the retaining wall 1 can ensure the stability of the entire ramp.
[0024] Specifically, the basement ramp 5 is a concrete floor, with a steel mesh inside, which is welded to the steel bars on the top of the retaining wall 1. The reinforced concrete retaining wall 2 is cast with concrete, and a steel mesh is inside the reinforced concrete retaining wall 2.
[0025] Specifically, a large angle is provided at the inner bottom of the reinforced concrete retaining wall 2 to prevent it from tipping over when backfilling. Specifically, the first drainage ditch 3 is set at the highest elevation point of the underground ramp 5, and the second drainage ditch 6 is set at the lowest elevation point of the underground ramp 5. A ramp construction method based on a backfill soil base at a basement entrance comprises: S1: Complete the construction of the basement; S2: After the basement construction is completed, retaining walls 1 are constructed on both sides at the entrance of the basement; S3: implanting horizontal steel bars and vertical steel bars on the retaining walls 1 on both sides; S4: Tie the horizontal and vertical steel bars into a steel mesh, and then pour concrete on the side formwork in front and behind the steel mesh; S5: Laying waterproof membrane on the outer surface of the retaining wall 1 and the reinforced concrete retaining wall 2; S6: Laying backfill soil 7 in the space formed between the retaining walls 1 on both sides and the plurality of reinforced concrete retaining walls 2; S7: laying a steel mesh on the backfill soil 7, and tying the steel mesh to the steel bars on the retaining wall 1 and the reinforced concrete retaining wall 2 to form a whole; S8: Forming and pouring concrete to form the basement ramp 5.
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A ramp structure based on backfill soil at the entrance of the basement. It is characterized in that include: A retaining wall (1), wherein the retaining wall (1) is symmetrically arranged on both sides; A reinforced concrete retaining wall (2), wherein the reinforced concrete retaining wall (2) is arranged between the retaining walls (1) on both sides; Backfill soil (7), the backfill soil (7) being laid between the retaining walls (1) on both sides; A basement ramp (5), wherein the basement ramp (5) is arranged between the retaining walls (1) on both sides; A retaining ridge (4), wherein the retaining ridge (4) is arranged at the lowest end of the basement ramp (5).
2. The ramp structure based on the backfill soil base at the basement entrance according to claim 1, It is characterized in that The basement ramp (5) is a concrete floor with a steel mesh arranged inside. The steel mesh is welded to the steel bars at the top of the retaining wall (1).
3. The ramp structure based on the backfill soil base at the basement entrance according to claim 1, It is characterized in that The reinforced concrete retaining wall (2) is cast with concrete, and a steel mesh is arranged inside the reinforced concrete retaining wall (2).
4. The ramp structure based on the backfill soil base at the basement entrance according to claim 1, It is characterized in that The distance between any two adjacent reinforced concrete retaining walls (2) is less than or equal to 6 m.
5. The ramp structure based on the backfill soil base at the basement entrance according to claim 1, It is characterized in that The inner bottom of the reinforced concrete retaining wall (2) is provided with a large angle to prevent overturning during backfilling.
6. The ramp structure based on the backfill soil base at the basement entrance according to claim 1, It is characterized in that The retaining wall (1) is a right-angled trapezoidal structure.
7. The ramp structure based on the backfill soil base at the basement entrance according to claim 6, It is characterized in that The height difference between the highest point and the lowest point of the basement ramp (5) is H, the height of the retaining wall (1) is h, and 2H / 3≤h≤H.
8. The ramp structure based on the backfill soil base at the basement entrance according to claim 1, It is characterized in that A first drainage ditch (3) is provided at the highest elevation point of the basement ramp (5), and a second drainage ditch (6) is provided at the lowest elevation point of the basement ramp (5).
9. A ramp construction method based on backfill soil base at the basement entrance. It is characterized in that include: S1: Complete the construction of the basement; S2: After the basement construction is completed, retaining walls (1) are constructed on both sides of the basement entrance. S3: implanting horizontal steel bars and vertical steel bars on the retaining walls (1) on both sides; S4: Tie the horizontal and vertical steel bars into a steel mesh, and then pour concrete on the side formwork in front and behind the steel mesh; S5: laying waterproof membrane on the outer surface of the retaining wall (1) and the reinforced concrete retaining wall (2); S6: Laying backfill soil (7) in the space formed between the retaining walls (1) on both sides and the plurality of reinforced concrete retaining walls (2); S7: laying a steel mesh on the backfill soil (7), and tying the steel mesh to the steel bars on the retaining wall (1) and the reinforced concrete retaining wall (2) to form a whole; S8: Forming and pouring concrete to form the basement ramp (5).