Soft soil foundation deep solidification supporting structure

Abstract

The utility model discloses a soft soil foundation deep layer solidification supporting structure which comprises a supporting frame body and a shallow layer solidification pouring plate, the supporting frame body is a rectangular frame body with the upper portion and the lower portion open, and soft soil solidification assemblies are arranged on the inner periphery of the supporting frame body in a vertical sliding fit mode. The supporting frame has the advantages that after the supporting frame body is arranged on the inner periphery of an excavated foundation pit in a covering mode, the soft soil solidification assembly is placed below the inner periphery of the supporting frame body in a vertical sliding fit mode, and therefore drainage solidification operation on backfilled soft soil can be achieved in the mode that water is filtered through the top face of a water collecting box of the soft soil solidification assembly; and meanwhile, deep replacement, solidification and supporting of the soft soil foundation can be achieved in the mode that the deep replacement pile bodies on the bottom face of the water collecting tank are inserted into the bottom face of the foundation pit for anchoring, deep solidification of the soft soil foundation is achieved by combining a drainage consolidation method and a replacement method, and the deep solidification and supporting effect on the soft soil foundation is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary components for solidification of soft soil foundations, specifically to a deep solidification support structure for soft soil foundations. Background Technology

[0002] Soft soil is characterized by high water content, high compressibility, and low mechanical strength. In particular, silt or silty soil in a fluid plastic state is a soil layer that needs to be treated in engineering. In the current technology, the commonly used treatment methods for this type of soft soil foundation include drainage consolidation, replacement, and pile foundation. However, in actual construction, when carrying out deep solidification support for soft soil foundation, a single method is usually used, that is, only one of the drainage consolidation, replacement, and pile foundation methods is used, resulting in the deep solidification support effect of soft soil foundation is not ideal. Utility Model Content

[0003] The purpose of this utility model is to provide a deep solidification support structure for soft soil foundations in order to solve the above-mentioned problems. After the support frame body is set up inside the excavated foundation pit, a soft soil solidification component is placed under the inner perimeter of the support frame body through a vertical sliding fit. In this way, the drainage and consolidation operation of the backfilled soft soil can be achieved by filtering water through the top surface of the water collection box of the soft soil solidification component. At the same time, the deep replacement pile body at the bottom of the water collection box is inserted into the bottom surface of the foundation pit for anchoring, which can also achieve deep replacement and solidification support for the soft soil foundation. This realizes the combination of drainage consolidation method and replacement method for deep solidification of soft soil foundations, as detailed below.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This utility model provides a deep solidification support structure for soft soil foundation, including a support frame body and a shallow solidification casting plate. The support frame body is a rectangular frame with open top and bottom. The inner circumference of the support frame body is provided with a soft soil solidification component in a vertical sliding fit manner, which is used to combine the drainage consolidation method and the replacement method to achieve deep solidification of the soft soil foundation through the soft soil solidification component.

[0006] The top of the support frame is covered by the shallow solidification casting plate at the position of the top surface of the soft soil solidification component.

[0007] Preferably, the soft soil consolidation component includes a water collection box and deep replacement piles. The water collection box is placed at the bottom of the inner perimeter of the support frame body in a vertical sliding fit. Multiple deep replacement piles are fixedly fixed to the bottom surface of the water collection box. The water collection box is a hollow box with an open top, and a filter screen is fixedly fixed to the top surface of the water collection box. A pumping pipe and a feeding pipe are vertically inserted on both sides of the top surface of the water collection box, and the bottom ends of the pumping pipe and the feeding pipe are located inside the water collection box.

[0008] Preferably, the bottom end of the pumping pipe is close to the inner bottom surface of the water collection box, and the bottom end of the feed pipe is higher than the bottom end of the pumping pipe.

[0009] Preferably, the top ends of both the pumping pipe and the feed pipe are not higher than the top surface of the support frame body and both have external threaded connectors.

[0010] Preferably, a limiting flange is fixedly fixed to the lower inner perimeter of the support frame body along the entire circumference, and the bottom surface of the water collection box is supported and limited by the top surface of the limiting flange.

[0011] Preferably, the filter screen is a fine metal mesh plate.

[0012] Preferably, a compaction plate is provided on the upper inner part of the support frame body in a vertical sliding fit. The compaction plate has vertical mating holes on both sides, and the water pump pipe and the feed pipe pass through the corresponding mating holes on the same side in a vertical sliding fit.

[0013] Preferably, the compaction plate has a convex shape at the top.

[0014] Preferably, the shallow curing casting plate is compacted and cast onto the top surface of the compaction plate, and both sides of the bottom surface of the shallow curing casting plate have downwardly extending anti-slip protrusions, and the bottom ends of the anti-slip protrusions are compacted and contact the corresponding side of the top surface of the compaction plate.

[0015] In the above-mentioned deep solidification support structure for soft soil foundations, in actual construction operations, after the support frame body is installed inside the excavated foundation pit, the soft soil solidification component is placed under the inner perimeter of the support frame body through a vertical sliding fit. This allows for drainage and consolidation of the backfilled soft soil through the filtration of water from the top surface of the water collection box of the soft soil solidification component. Specifically, the filtration of water from the backfilled soft soil is achieved through the filter net covering the top surface of the water collection box. Simultaneously, the deep replacement piles at the bottom of the water collection box are inserted into the bottom of the foundation pit for anchoring, thus achieving deep replacement and solidification support for the soft soil foundation. This combines drainage consolidation and replacement methods for deep solidification of the soft soil foundation, significantly improving the deep solidification support effect. Furthermore, the soft soil solidification component also includes a compaction plate. The compaction plate, through its mating holes, slides coaxially with the pumping pipe and the feed pipe, allowing it to press the backfilled soft soil vertically downwards. This improves the drainage and consolidation efficiency of the backfilled soft soil and enhances its compactness after consolidation. After the compaction plate compacts and consolidates the backfilled soft soil and the pumping pipe drains the water accumulated in the collection box, concrete is poured through the feed pipe to fill the inside of the collection box, pumping pipe, and feed pipe. This enhances the overall stability of the collection box, pumping pipe, and feed pipe. Furthermore, the concrete pouring method allows the shallow solidification slab to be placed above the compaction plate, further strengthening the consolidation and support effect on the soft soil foundation.

[0016] The beneficial effects are as follows: 1. After the support frame body is set up in the inner perimeter of the excavated foundation pit, a soft soil consolidation component is placed under the inner perimeter of the support frame body through a vertical sliding fit. In this way, the drainage and consolidation operation of the backfill soft soil can be realized by filtering water through the top surface of the water collection box of the soft soil consolidation component. At the same time, the deep replacement pile body at the bottom of the water collection box is inserted into the bottom surface of the foundation pit for anchoring, which can also realize the deep replacement and consolidation support of the soft soil foundation. This realizes the combination of drainage consolidation method and replacement method to carry out deep consolidation of soft soil foundation, which significantly improves the deep consolidation support effect of soft soil foundation.

[0017] 2. The soft soil consolidation component is also equipped with a compaction plate. The compaction plate can be vertically pressed down to press the backfill soft soil by sliding with the pumping pipe and the feed pipe through the matching holes of the compaction plate. This not only improves the drainage and consolidation efficiency of the backfill soft soil, but also helps to improve the density of the backfill soft soil after consolidation.

[0018] 3. After the compaction plate compacts and consolidates the backfilled soft soil and the water accumulated in the water collection box is drained through the water pumping pipe, the interior of the water collection box, water pumping pipe and feed pipe can be densely filled by pouring concrete. This helps to enhance the overall stability of the water collection box, water pumping pipe and feed pipe. At the same time, by pouring concrete, a shallow solidification slab can be set above the compaction plate, which can further enhance the solidification and support effect on the soft soil foundation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an overall isometric schematic diagram of this utility model;

[0021] Figure 2 This is a utility model Figure 1 A schematic diagram of the cross-section;

[0022] Figure 3 This is a utility model Figure 1 Front view external schematic diagram;

[0023] Figure 4 This is a utility model Figure 1 Front view sectional diagram.

[0024] The annotations in the attached figures are explained as follows:

[0025] 1. Shallow solidification casting slab; 101. Anti-slip lower protrusion; 2. Support frame body; 201. Limiting flange; 3. Soft soil solidification component; 301. Deep replacement pile; 302. Connecting pipe; 303. Matching hole; 304. Compactor plate; 305. Pumping pipe; 306. Filter screen; 307. Water collection box; 308. Feed pipe. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] See Figures 1-4As shown, this utility model provides a deep solidification support structure for soft soil foundations, including a support frame body 2 and a shallow solidification casting plate 1. The support frame body 2 is a rectangular frame with open top and bottom. A soft soil solidification component 3 is vertically slidably installed around the inner perimeter of the support frame body 2. This component combines drainage consolidation and replacement methods to achieve deep solidification of the soft soil foundation. Specifically, the soft soil solidification component 3 includes a water collection box 307 and deep replacement piles 301. The water collection box 307 is vertically slidably placed at the bottom of the inner perimeter of the support frame body 2. Multiple deep replacement piles 301 are vertically extended and fixed to the bottom surface of the water collection box 307. The water collection box 307 is a hollow box with an open top, and a filter screen 306 is fixedly installed on the top surface of the water collection box 307. The top surface of the water collection box 307 has two sides... A water pumping pipe 305 and a feed pipe 308 are vertically inserted and installed, with the bottom ends of both pipes located inside the water collection box 307. A shallow solidification casting plate 1 is poured and covered on the top surface of the soft soil solidification component 3 inside the support frame body 2. The purpose of this arrangement is to achieve drainage and consolidation of the backfilled soft soil by filtering water through the top surface of the water collection box 307 of the soft soil solidification component 3, and to achieve deep replacement and solidification support of the soft soil foundation by anchoring the deep replacement piles at the bottom of the water collection box into the bottom of the foundation pit. This combines the drainage consolidation method and the replacement method to achieve deep solidification of the soft soil foundation. Furthermore, the shallow solidification casting plate 1 can further enhance the solidification support effect of the soft soil foundation, especially the solidification support effect of the upper area of ​​the soft soil foundation.

[0028] See Figures 1-2 As shown, the soft soil consolidation component 3 has been optimized as follows: Specifically, the bottom end of the pumping pipe 305 is close to the inner bottom surface of the water collection box 307. Preferably, the distance between the bottom end of the pumping pipe 305 and the inner bottom surface of the water collection box 307 is less than 5mm. The bottom end of the feed pipe 308 is higher than the bottom end of the pumping pipe 305. This arrangement facilitates the pumping pipe 305 to pump out as much water as possible from inside the water collection box 307, and also facilitates the smooth filling of the water collection box 307 by the concrete entering through the feed pipe 308. Alternatively, the top ends of both the pumping pipe 305 and the feed pipe 308 are not higher than the top surface of the support frame body 2 and both are provided with externally threaded connecting parts 302, so as to facilitate the combination connection and subsequent disassembly of the pumping pipe 305 or the feed pipe 308 with the corresponding pipelines. Optionally, a limiting flange 201 extends horizontally along the entire circumference of the lower inner perimeter of the support frame body 2, and the bottom surface of the water collection box 307 is supported and limited by the top surface of the limiting flange 201. This arrangement ensures that the water collection box 307 can be stably limited and supported at a predetermined position in the lower inner perimeter of the support frame body 2. Furthermore, the filter screen 306 is a fine metal mesh plate to meet usage requirements.

[0029] See Figures 1-4 As shown, a compaction plate 304 is vertically slidably fitted onto the upper inner part of the support frame body 2. Both sides of the compaction plate 304 have vertically opening mating holes 303, through which the pumping pipe 305 and the feed pipe 308 pass vertically. This arrangement allows the compaction plate 304 to vertically press down on the backfill soft soil by sliding coaxially with the pumping pipe 305 and the feed pipe 308 through the mating holes 303. This improves the drainage and consolidation efficiency of the backfill soft soil and also helps to increase the density of the consolidated backfill soft soil. It should be noted that the compaction process can be achieved by applying downward pressure using external engineering machinery. Optionally, the compaction plate 304 can be convex in shape at the top to allow space for anti-slip lower protrusions 101 on both sides. The shallow curing casting slab 1 is compacted and cast on the top surface of the compaction plate 304. Both sides of the bottom surface of the shallow curing casting slab 1 have downwardly extending anti-slip protrusions 101, and the bottom ends of the anti-slip protrusions 101 are compacted and contact the corresponding side of the top surface of the compaction plate 304. This arrangement facilitates the enhancement of the limiting and anti-movement capability of the shallow curing casting slab 1 by setting the anti-slip protrusions 101, and prevents the shallow curing casting slab 1 from horizontally shifting.

[0030] Using the above structure, in actual construction operations, after the support frame body 2 is installed inside the excavated foundation pit, a soft soil consolidation component 3 is placed under the inner perimeter of the support frame body 2 through a vertical sliding fit. This allows for drainage and consolidation of the backfilled soft soil through the filtration of water from the top surface of the water collection box 307 of the soft soil consolidation component 3. Specifically, the filtration of water from the backfilled soft soil is achieved through the filter net 306 covering the top surface of the water collection box 307. Simultaneously, the deep replacement piles at the bottom of the water collection box are inserted into the bottom of the foundation pit for anchoring, thus achieving deep replacement and consolidation support for the soft soil foundation. This combines drainage consolidation and replacement methods for deep consolidation of the soft soil foundation, significantly improving the deep consolidation support effect. Furthermore, since the soft soil consolidation component 3 is also equipped with a compaction plate 304, the compaction plate 304 has mating holes 3... The coaxial sliding engagement of the compaction plate 304 with the pumping pipe 305 and the feed pipe 308 allows the compaction plate 304 to press the backfill soft soil vertically downwards, which not only improves the drainage and consolidation efficiency of the backfill soft soil, but also helps to improve the density of the backfill soft soil after consolidation. After the compaction plate 304 compacts and consolidates the backfill soft soil and the water accumulated in the water collection box 307 is drained through the pumping pipe 305, the water collection box 307, the pumping pipe 305, and the feed pipe 308 can be densely filled by pouring concrete through the feed pipe 308. This helps to enhance the overall stability of the water collection box 307, the pumping pipe 305, and the feed pipe 308. At the same time, the pouring concrete can also set a shallow solidification pouring plate 1 above the compaction plate 304, which can further enhance the solidification and support effect on the soft soil foundation.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A deep solidification support structure for soft soil foundation, comprising a support frame body (2) and a shallow solidification casting slab (1), characterized in that: The support frame body (2) is a rectangular frame with open top and bottom. The inner circumference of the support frame body (2) is provided with a soft soil solidification component (3) in a vertical sliding fit, which is used to combine the drainage consolidation method and the replacement method to carry out deep solidification of the soft soil foundation through the soft soil solidification component (3). The top of the inner part of the support frame body (2) is covered with the shallow solidification casting plate (1) at the position of the top surface of the soft soil solidification component (3).

2. The deep solidification support structure for soft soil foundation according to claim 1, characterized in that: The soft soil consolidation component (3) includes a water collection box (307) and deep replacement piles (301). The water collection box (307) is placed at the bottom of the inner perimeter of the support frame body (2) in a vertical sliding fit. Multiple deep replacement piles (301) are fixed vertically on the bottom surface of the water collection box (307). The water collection box (307) is a hollow box with an open top. A filter screen (306) is fixedly fixed on the top surface of the water collection box (307). A pumping pipe (305) and a feed pipe (308) are vertically inserted on both sides of the top surface of the water collection box (307). The bottom ends of the pumping pipe (305) and the feed pipe (308) are located inside the water collection box (307).

3. The deep solidification support structure for soft soil foundation according to claim 2, characterized in that: The bottom end of the pumping pipe (305) is close to the inner bottom surface of the water collection box (307), and the bottom end of the feed pipe (308) is higher than the bottom end of the pumping pipe (305).

4. The deep solidification support structure for soft soil foundation according to claim 3, characterized in that: The top ends of the pumping pipe (305) and the feed pipe (308) are not higher than the top surface of the support frame body (2) and both have external threaded connectors (302).

5. The deep solidification support structure for soft soil foundation according to claim 4, characterized in that: The lower inner perimeter of the support frame body (2) is fixed with a limiting flange (201) extending horizontally along the entire circumference, and the bottom surface of the water collection box (307) is supported and limited by the top surface of the limiting flange (201).

6. The deep solidification support structure for soft soil foundation according to claim 5, characterized in that: The filter screen (306) is a fine metal mesh plate.

7. A deep solidification support structure for soft soil foundation according to any one of claims 2-6, characterized in that: The upper inner part of the support frame body (2) is provided with a compaction plate (304) in a vertical sliding fit. Both sides of the compaction plate (304) are provided with vertical fitting holes (303), and the water pumping pipe (305) and the feed pipe (308) pass through the corresponding fitting holes (303) on the same side in a vertical sliding fit.

8. The deep solidification support structure for soft soil foundation according to claim 7, characterized in that: The compaction plate (304) has a convex shape on the top.

9. The deep solidification support structure for soft soil foundation according to claim 8, characterized in that: The shallow curing casting plate (1) is compacted and cast on the top surface of the compaction plate (304). Both sides of the bottom surface of the shallow curing casting plate (1) are downwardly extending anti-slip protrusions (101), and the bottom ends of the anti-slip protrusions (101) are compacted and contact the corresponding side of the top surface of the compaction plate (304).

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