Reinforcing structure of riprap silt squeezing stratum in reclamation area
By setting mud reinforcement holes in the rock-filled silt-squeezing strata of the reclamation area to form a reinforcement barrier, the problems of construction safety and environmental disturbance were solved, and a fast and safe construction effect was achieved.
Patent Information
- Application Number
- CN202423016134.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-06
AI Technical Summary
During the construction of rock dumping and silt squeezing strata in land reclamation areas, there are risks of trench wall collapse, mud spillage, and surrounding subsidence and collapse. In addition, conventional reinforcement methods are time-consuming and cause great disturbance, making them unsuitable for sensitive areas such as towns.
Parallel mud reinforcement holes are set on both sides of the construction area of the retaining structure. The mud reinforcement holes extend from the ground surface to the bottom of the highly permeable layer to form a reinforcement area. Grouting is carried out through the mud reinforcement holes to form a barrier, cut off the groundwater connection path, provide lateral support, and prevent the trench wall from collapsing.
It significantly reduces construction risks, shortens the construction period, and minimizes environmental disturbance, making it particularly suitable for use in sensitive areas such as towns and cities, and reducing project costs.
Smart Images
Figure CN223577070U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to reclamation area underground enclosure structure construction technical field, specifically speaking, it is related to a kind of reclamation area riprapping extrusion silt stratum's reinforcing structure. BACKGROUND
[0002] Reclamation area is mostly riprapping extrusion complex geological condition, fill block stone, fill sand, silt layer interaction, stratum distribution is extremely uneven, in reclamation area underground engineering construction process, due to high underground water level, fill block stone, fill sand layer strong water permeability and many with seawater communication, silt layer is mostly flow plastic, soft plastic, underground enclosure structure construction often occurs groove wall collapse, mud overflow, construction peripheral area subsidence collapse, construction large-scale mechanical equipment station area void, safety risk is extremely high, and sporadic mud disperses to peripheral sea pollution environment.And the conventional solution is repeatedly backfilling clay in hole (groove), piece stone after continuous impact extrusion surrounding stratum to achieve "reinforcement" effect.
[0003] However, the above-mentioned repeated backfilling treatment method is time-consuming and has great disturbance to the surrounding area, and is not suitable for use in urban roads, buildings, pipelines and other densely populated areas. Therefore, there is an urgent need for a method that can seal strong water permeable and unstable strata with a short construction period, relatively small disturbance and controllable economic benefits to create relatively homogeneous construction strata conditions. UTILITY MODEL CONTENT
[0004] To solve the problems in the prior art, the utility model provides a kind of reinforcing structure of reclamation area riprapping extrusion silt stratum, after using this kind of reinforcing structure, collapse, void risk can be significantly reduced, the safety guarantee of construction is greatly improved, and the disturbance to the surrounding environment of city is effectively reduced.
[0005] The technical scheme of the utility model is as follows:
[0006] A reinforcing structure of reclamation area riprapping extrusion silt stratum, comprising two rows of mud reinforcement holes arranged in parallel on both sides of the enclosure construction area, and each mud reinforcement hole extends from the ground surface to the bottom of the strong water permeable layer at the location; the two rows of mud reinforcement holes form a reinforced area on both sides of the enclosure construction area; the distance between any two adjacent mud reinforcement holes in the same row is equal, and the distance between the first and last mud reinforcement holes in the same row is greater than the length of the enclosure construction area.
[0007] As a preferred technical scheme of the utility model, a double-liquid slurry is arranged in the mud reinforcement hole.
[0008] As a preferred technical scheme of the utility model, the length of the mud reinforcement hole is not less than 6 meters.
[0009] As a preferred technical scheme of the utility model, the distance between the first and the last two mud reinforcement holes in the same row is greater than 12 meters.
[0010] As a preferred technical scheme of the utility model, the grouting diffusion radius of the mud reinforcement hole is 0.5 meters, so that the width of the reinforcement area is 1 meter.
[0011] As a preferred technical scheme of the utility model, the center distance between the adjacent two mud reinforcement holes in the same row is equal to 0.6 meters.
[0012] According to the utility model of the above scheme, it has the beneficial effects that:
[0013] The utility model sets up a plurality of mud reinforcement holes on both sides of the enclosure construction area, each mud reinforcement hole extends from the ground to the bottom of the strong water permeable layer at the position, the reinforcement area formed after the mud reinforcement hole grouting effectively reinforces the strong water permeable layer beside the enclosure construction area, forms a barrier on both sides of the enclosure construction area, prevents the connection between the underground water (including seawater) and the construction area, reduces the negative influence of the underground water on the stability of the trench wall;
[0014] Further, the mud reinforcement holes in the same row are arranged at equal intervals, and the distance between the first and the last two reinforcement columns is greater than the length of the enclosure construction area, which ensures that all possible water permeable paths in the whole construction area are effectively cut off, and at the same time provides sufficient lateral support force to avoid the collapse of the trench wall;
[0015] Compared with the traditional method of repeatedly backfilling clay or stone, the mud reinforcement hole and the reinforcement area formed thereby can be constructed in a shorter time, reducing the disturbance to the surrounding environment, and being particularly suitable for use in urban roads, buildings and pipeline dense areas; and because the mud reinforcement hole can rapidly improve the ground conditions after grouting, the subsequent underground engineering can be carried out more quickly, the overall construction period is shortened, and the project cost is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a plane schematic view of the reinforcement structure of the utility model;
[0017] Figure 2 It is a sectional view of the reinforcement structure of the utility model.
[0018] In the drawings,
[0019] 1, enclosure construction area; 2, mud reinforcement hole; 20, reinforcement area; 3, strong water permeable layer. DETAILED DESCRIPTION
[0020] For better understanding of the purpose, technical scheme and technical effect of the present application, the present application will be further explained in conjunction with the drawings and examples. It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, it is declared that the following described examples are only for explaining the present application, and are not used to limit the present application.
[0021] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element, and when an element is referred to as "connected to" another element, it can be directly connected to another element or there can be a middle element.
[0022] The indicated position or positional relationship is based on the position or positional relationship shown in the drawings, or the position or positional relationship commonly used when the product of the application is used, or the position or positional relationship commonly understood by those skilled in the art, or the position or positional relationship commonly used when the product of the application is used, only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The term "several" means two or more, unless otherwise specifically and specifically limited.
[0023] As shown in Figure 1 and Figure 2 A reclamation area riprapping squeezing silt stratum reinforcing structure, comprising two rows of mud reinforcement holes 2 arranged in parallel on both sides of the enclosure construction area 1, and each of the mud reinforcement holes 2 extends from the ground surface to the bottom of the strong water permeable layer 3 at the location; the two rows of mud reinforcement holes 2 are used to form a reinforced area 20 on both sides of the enclosure construction area 1. The distance between the adjacent two mud reinforcement holes 2 in the same row of mud reinforcement holes 2 is equal, and the distance between the first and last mud reinforcement holes 2 in the same row of mud reinforcement holes 2 is greater than the length of the enclosure construction area 1.
[0024] By setting a plurality of mud reinforcement holes 2 on both sides of the enclosure construction area 1, each mud reinforcement hole 2 extends from the ground surface to the bottom of the strong water permeable layer 3 at the position, and after grouting of the mud reinforcement hole 2, the strong water permeable layer 3 on the side of the enclosure construction area 1 is effectively reinforced to form a barrier to prevent the connection between the underground water (including seawater) and the construction area, and reduce the negative impact of the underground water on the stability of the trench wall. Among them, the mud reinforcement holes 2 in the same row are arranged at equal intervals, and the distance between the first and last reinforcement columns is greater than the length of the enclosure construction area 1, which ensures that the reinforcement area 20 covers the entire enclosure construction area 1 and effectively cuts off all possible water permeable paths, while providing sufficient lateral support to prevent the trench wall from collapsing.
[0025] It can be seen that, compared with the traditional repeated backfilling method of clay or stone, the mud reinforcement hole 2 can be completed in a shorter time, reducing the disturbance to the surrounding environment, and is particularly suitable for use in urban roads, buildings and pipeline dense areas; and because the mud reinforcement hole 2 can quickly improve the ground conditions, the subsequent underground engineering can be carried out faster, the overall construction period is shortened, and the project cost is reduced.
[0026] In this embodiment, the grouting material inside the mud reinforcement hole 2 is a double-liquid slurry, and the double-liquid slurry is a commonly used mud slurry, which includes 1:1 cement slurry and water glass. The water cement ratio of the cement slurry is 0.8:1~1:1, the modulus of the water glass is 3.0, and the modulus of the water glass is the molar ratio of silicon dioxide (SiO2) to sodium oxide (Na2O). The modulus of 3.0 means that in the water glass solution, 1 mole of Na2O corresponds to 3 moles of SiO2. The water glass has a Baumé degree of 40° (40°Be).
[0027] In this embodiment, the length of the mud reinforcement hole 2 is not less than 6 meters, which ensures that the mud reinforcement hole 2 can reach the bottom of the strong water permeable layer 3 or a deeper position, not only cutting off the connection path between the underground water and the construction area, but also enhancing the sealing effect of the deep unstable stratum, improving the safety and stability of the overall structure. The distance between the first and last mud reinforcement holes 2 in the same row of mud reinforcement holes 2 is greater than 12 meters, and the reinforcement area 20 formed by each row of mud reinforcement holes 2 covers a larger lateral area, effectively expanding the protective barrier around the construction area, reducing the risk of trench wall collapse, mud overflow and settlement collapse outside the construction area.
[0028] The grouting diffusion radius of the slurry reinforced hole 2 is 0.5 m, so as to form two reinforced barriers with a width of 1 m on both sides of the enclosure construction area 1. By setting the grouting diffusion radius to 0.5 m, the spacing between adjacent slurry reinforced holes 2 is appropriate, and two continuous reinforced barriers with a width of 1 m can be formed on both sides of the enclosure construction area 1; the 1-m-wide reinforced barrier can effectively block the connecting path between the groundwater (including seawater) and the construction area.
[0029] In the embodiment, the spacing between the two adjacent slurry reinforced holes 2 in the same row is equal to 0.6 m. By setting the spacing between the two adjacent slurry reinforced holes 2, the two grouting ranges can overlap, the continuity and integrity of the reinforced area 20 are ensured, the structural strength of the reinforced area 20 is improved, and the grouting ranges are reasonably partially overlapped, so that all the reinforced areas 20 are fully grouted, and the reinforcement failure caused by insufficient grouting is avoided; at the same time, the reasonable overlap also means that the materials are more effectively utilized.
[0030] In summary, the slurry reinforced hole 2 is arranged reasonably, and the double-slurry grouting diffusion is performed, so as to form a solid and uniform reinforced barrier on both sides of the enclosure construction area 1, and the stability of the stratum and the safety of the overall structure are enhanced; the structure can simplify the construction process, speed up the construction progress, and reduce the disturbance to the surrounding environment, and is particularly suitable for urban roads, densely built-up areas, and projects with strict environmental protection requirements.
[0031] The technical features of the above embodiments can be combined arbitrarily, and in order to make the description concise, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the description.
[0032] The above embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.
Claims
1. A reinforcement structure for riprap-filled silt-displacing strata in reclaimed areas, characterized in that, The mud reinforcement holes are arranged in parallel on both sides of the construction area of the enclosure, and each mud reinforcement hole extends from the ground surface to the bottom of the strong water-permeable layer at the position. The distance between the first and last mud reinforcement holes in the same row is greater than the length of the construction area of the enclosure.
2. The reinforcement structure for the rubble-squeezed formation in the reclamation area according to claim 1, wherein The mud reinforcement hole is provided with double-liquid slurry.
3. The reinforcement structure for the rubble-squeezed formation in the reclamation area according to claim 1, wherein The length of the mud reinforcement hole is not less than 6 meters.
4. The reinforced structure of a rubble mound in a reclamation area according to claim 1, wherein The distance between the first and last mud reinforcement holes in the same row is greater than 12 meters.
5. The structure according to claim 1, wherein The grouting diffusion radius of the mud reinforcement hole is 0.5 meters, so that the width of the reinforcement area is 1 meter.
6. The reinforced structure of a rubble mound in a reclamation area according to claim 5, wherein The center distance between the adjacent two mud reinforcement holes in the same row is equal to 0.6 meters.