Foaming backfill bottom hollowing repairing structure

Abstract

The utility model relates to a foaming backfill bottom hollowing repairing structure. The technical problem that an existing foaming backfilling method is prone to generating hollowing and causing sedimentation is solved. Comprising a toilet caisson with a sunken caisson groove body, the inner wall of the caisson groove body is covered with a waterproof layer, a foaming backfilling layer is arranged in the toilet caisson, a hollowing area is arranged between the foaming backfilling layer and the waterproof layer, and at least one maintenance hole penetrating through the foaming backfilling layer and communicated with the hollowing area is formed in the foaming backfilling layer. Gypsum-based self-leveling layers are arranged in the hollowing area and the maintenance hole and cover the upper side of the foaming backfill layer. The method has the advantages that the overhauling effect can be improved through the multiple overhauling holes, the hollowing area can be effectively reduced, and the supporting effect is improved. The hollow area is repaired through the gypsum-based self-leveling layer, so that the repairing efficiency can be improved, and the repairing cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of toilet caissons, and in particular relates to a foaming backfill bottom hollow repairing structure. Background Art

[0002] At present, the backfill method for drop-down toilets generally adopts construction waste backfill, industrial coal slag backfill and other methods, but these two methods are prone to leakage, environmental pollution and other problems, and the expanded clay backfill has complex process and high cost; with the development of technology, a foaming backfill method has appeared on the market, which is to use a foaming agent to foam and add cement for backfilling, which can effectively reduce the construction difficulty and reduce the construction cost; however, the types and models of cement commonly used in various places are inconsistent, resulting in the difficulty of controlling the amount of water added; if too much water is added, the excess water will be deposited at the bottom of the caisson, and the foamed backfill will solidify, forming hollows at the bottom, resulting in no support at the bottom of the foamed backfill layer, which may lead to the risk of toilet settlement, reduce service life, and affect user experience. Summary of the invention

[0003] The utility model aims to solve the above problems and provides a foaming backfill bottom hollow repair structure.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a foam backfill bottom hollow repair structure, comprising a bathroom caisson with a concave caisson trough body, the inner wall of the caisson trough body is covered with a waterproof layer, a foam backfill layer is arranged in the bathroom caisson, and a hollow area is provided between the foam backfill layer and the waterproof layer, at least one inspection hole penetrating the foam backfill layer and connected to the hollow area is arranged in the foam backfill layer, a gypsum-based self-leveling layer is arranged in the hollow area and in the inspection hole, and the gypsum-based self-leveling layer covers the upper side of the foam backfill layer, and the automatic leveling characteristics of the gypsum-based self-leveling layer can effectively fill the hollow area through the inspection hole, thereby supporting the foam backfill layer and reducing settlement.

[0005] In the above-mentioned foaming backfill bottom hollow repair structure, the waterproof layer covers the bottom and sides of the caisson body, and the height of the waterproof layer is not higher than the groove of the caisson body, which can facilitate the leveling of the gypsum-based self-leveling layer and facilitate subsequent waterproofing measures to ensure the waterproof effect.

[0006] In the above-mentioned foam backfill bottom hollow repair structure, the inspection hole vertically penetrates the foam backfill layer, and the diameters of the inspection holes are equal or different. Through the inspection hole, the gypsum-based self-leveling layer can fill the hollow area in the foam backfill layer, support the foam backfill layer, reduce settlement, and increase service life.

[0007] In the above-mentioned foaming backfill bottom hollow repair structure, the number of the inspection holes is 1-5, which can improve the inspection effect of the hollow area, reduce hollowing, and further reduce the settlement effect.

[0008] In the above-mentioned foam backfill bottom hollow repair structure, the number of the inspection holes is 3-4, which can ensure the hollow inspection effect of the foam backfill layer, improve the supporting effect of the foam backfill layer, increase the service life, and reduce the risk of settlement.

[0009] In the above-mentioned foaming backfill bottom hollow repair structure, a gypsum-based self-leveling inlet is formed at the upper end of the inspection hole, and a gypsum-based self-leveling diversion port connected to the hollow area is formed at the lower end of the inspection hole. The gypsum-based self-leveling layer enters the inspection hole through the gypsum-based self-leveling inlet and is connected to the hollow area through the gypsum-based self-leveling diversion port. The inspection hole can guide the gypsum-based self-leveling layer and improve the filling efficiency.

[0010] In the above-mentioned foaming backfill bottom hollow repair structure, the upper end surface of the gypsum-based self-leveling layer is horizontally arranged, and the height of the upper end surface of the gypsum-based self-leveling layer does not exceed the notch of the caisson trough body, which can facilitate the implementation of waterproof measures on the gypsum-based self-leveling layer and improve the waterproof effect.

[0011] In the above-mentioned foaming backfill bottom hollow repair structure, the upper end of the gypsum-based self-leveling layer is located on the circumferential inner side of the waterproof layer, and the upper end surface of the gypsum-based self-leveling layer and the upper end of the waterproof layer are both flush with the notch of the caisson body, which can facilitate the later waterproof construction, improve work efficiency, and ensure the waterproof effect.

[0012] In the above-mentioned foam backfill bottom hollow repair structure, the caisson tank body is in the shape of a rectangular tank, the bottom of the caisson tank body is horizontally arranged and the side of the caisson tank body is vertically arranged.

[0013] In the above-mentioned foaming backfill bottom hollow repair structure, a downpipe vertically penetrating the bottom of the bathroom caisson is provided in the bathroom caisson.

[0014] Compared with the existing technology, the advantages of the utility model are:

[0015] 1. Several inspection holes can improve the inspection effect, effectively reduce the hollow area and improve the supporting effect.

[0016] 2. Repairing hollow areas with a gypsum-based self-leveling layer can improve repair efficiency and reduce repair costs.

[0017] 3. The height of the waterproof layer and the foamed backfill layer shall not exceed the groove, which can facilitate the leveling of the gypsum-based self-leveling layer, facilitate the construction of subsequent waterproof measures, improve construction efficiency, and further improve the waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the utility model from another viewing angle.

[0020] In the figure: bathroom caisson 1, caisson body 11, notch 111, waterproof layer 2, foam backfill layer 3, hollow area 4, inspection hole 5, gypsum-based self-leveling filling inlet 51, gypsum-based self-leveling diversion outlet 52, gypsum-based self-leveling layer 6, and sewer pipe 7. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] like Figure 1 , Figure 2 As shown, a foaming backfill bottom hollow repair structure includes a bathroom caisson 1 with a concave caisson trough body 11. The bathroom caisson 1 can improve the waterproof effect of the bathroom. The inner wall of the caisson trough body 11 is covered with a waterproof layer 2. The waterproof layer 2 can further improve the waterproof effect of the bathroom caisson 1, effectively prevent water leakage, and improve user experience. A foaming backfill layer 3 is arranged in the bathroom caisson 1. The bathroom can be backfilled by the foaming backfill layer 3, which can reduce costs and improve construction efficiency. There is a hollow area 4 between the foaming backfill layer 3 and the waterproof layer 2. The foaming backfill layer 3 is composed of foaming agent and cement, and the backfilling cost is low. The types of cement include silicate cement, ordinary silicate cement, slag silicate cement, volcanic ash silicate cement, fly ash silicate cement, etc. Portland cement, composite silicate cement, etc., and the amount of water used for backfilling of different types of cement is different, resulting in the inability to accurately control the amount of water used in the foaming backfilling process, resulting in excessive water deposition at the bottom of the foaming backfill layer 3 to form a hollow area 4, and the foaming backfill layer 3 is provided with at least one inspection hole 5 that penetrates the foaming backfill layer 3 and is connected to the hollow area 4, wherein the hollow area 4 may cause settlement, and the hollow area 4 can be filled through the inspection hole 5 to improve the service life, and a gypsum-based self-leveling layer 6 is provided in the hollow area 4 and the inspection hole 5, and the gypsum-based self-leveling layer 6 covers the upper side of the foaming backfill layer 3, and the automatic leveling characteristics of the gypsum-based self-leveling layer 6 can effectively fill the hollow area 4 through the inspection hole 5, thereby supporting the foaming backfill layer 3 and reducing settlement.

[0023] Specifically, the waterproof layer 2 covers the bottom and sides of the caisson body 11, and the height of the waterproof layer 2 is not higher than the notch 111 of the caisson body 11, which can facilitate the leveling of the gypsum-based self-leveling layer 6 and facilitate subsequent waterproofing measures to ensure the waterproof effect.

[0024] Among them, the inspection hole 5 vertically penetrates the foamed backfill layer 3, and the diameters of the inspection holes 5 are equal or different. Through the inspection hole 5, the gypsum-based self-leveling layer 6 can fill the hollow area 4 in the foamed backfill layer 3, support the foamed backfill layer 3, reduce sedimentation, and improve service life.

[0025] like Figure 1 , Figure 2 As shown, the number of the inspection holes 5 is 1-5, which can improve the inspection effect of the hollow area 4, reduce hollowing, and further reduce the sedimentation effect.

[0026] Furthermore, the number of the inspection holes 5 is 3-4, which can ensure the hollowing inspection effect of the foamed backfill layer 3, improve the supporting effect of the foamed backfill layer 3, increase the service life, and reduce the risk of settlement.

[0027] Among them, a gypsum-based self-leveling filling inlet 51 is formed at the upper end of the inspection hole 5, and a gypsum-based self-leveling diversion port 52 connected to the hollow area 4 is formed at the lower end of the inspection hole 5. The gypsum-based self-leveling layer 6 enters the inspection hole 5 through the gypsum-based self-leveling filling inlet 51 and is connected to the hollow area 4 through the gypsum-based self-leveling diversion port 52. The inspection hole 5 can guide the gypsum-based self-leveling layer 6 and improve the filling efficiency.

[0028] Combination Figure 1 , Figure 2 As shown, the upper end surface of the gypsum-based self-leveling layer 6 is horizontally arranged, and the height of the upper end surface of the gypsum-based self-leveling layer 6 does not exceed the notch 111 of the caisson tank body 11, which can facilitate the implementation of waterproof measures on the gypsum-based self-leveling layer 6 and improve the waterproof effect.

[0029] Among them, the upper end of the gypsum-based self-leveling layer 6 is located on the inner side of the waterproof layer 2 in the circumferential direction, and the upper end surface of the gypsum-based self-leveling layer 6 and the upper end of the waterproof layer 2 are both flush with the notch 111 of the caisson trough body 11, which can facilitate the later waterproof construction, improve work efficiency, and ensure the waterproof effect.

[0030] Specifically, the caisson tank body 11 is in a rectangular tank shape, the bottom of the caisson tank body 11 is horizontally arranged, and the side of the caisson tank body 11 is vertically arranged.

[0031] Combination Figure 1 As shown, a downpipe 7 vertically penetrating the bottom of the bathroom caisson 1 is provided in the bathroom caisson 1 .

[0032] The principle of this embodiment is that the bathroom caisson 1 is backfilled with a foamed backfill layer 3, and due to the wide variety of cement in the foamed backfill layer 3, the water consumption cannot be controlled, which easily leads to a hollow area 4 at the bottom of the foamed backfill layer 3, and when the foamed backfill layer 3 is accessible and not completely solidified, a number of inspection holes 5 connected to the hollow area 4 are opened, and the gypsum-based self-leveling layer 6 fills the hollow area 4 through the inspection holes 5 to support the foamed backfill layer 3 and reduce the risk of settlement. The gypsum-based self-leveling layer 6 can automatically level, with a low repair cost, and can facilitate leveling to improve the construction efficiency of subsequent waterproofing measures.

[0033] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0034] Although this article uses more terms such as bathroom caisson 1, caisson tank body 11, notch 111, waterproof layer 2, foam backfill layer 3, hollow area 4, inspection hole 5, gypsum-based self-leveling inlet 51, gypsum-based self-leveling diversion port 52, gypsum-based self-leveling layer 6, and downpipe 7, it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A foam backfill bottom hollow repair structure, comprising a bathroom caisson (1) having a concave caisson tank body (11), the inner wall of the caisson tank body (11) is covered with a waterproof layer (2), a foam backfill layer (3) is provided in the bathroom caisson (1), and a hollow area (4) is provided between the foam backfill layer (3) and the waterproof layer (2), characterized in that: The foamed backfill layer (3) is provided with at least one inspection hole (5) penetrating the foamed backfill layer (3) and connected to the hollow area (4); the hollow area (4) and the inspection hole (5) are provided with a gypsum-based self-leveling layer (6), and the gypsum-based self-leveling layer (6) covers the upper side of the foamed backfill layer (3).

2. A foam backfill bottom hollow repair structure according to claim 1, characterized in that: The waterproof layer (2) covers the bottom and sides of the caisson body (11), and the height of the waterproof layer (2) is not higher than the notch (111) of the caisson body (11).

3. The foam backfill bottom hollow repair structure according to claim 1, characterized in that: The inspection holes (5) vertically penetrate the foamed backfill layer (3), and the diameters of the inspection holes (5) are equal or different.

4. A foam backfill bottom hollow repair structure according to claim 1, 2 or 3, characterized in that: The number of the inspection holes (5) is 1-5.

5. A foam backfill bottom hollow repair structure according to claim 1, 2 or 3, characterized in that: The number of the inspection holes (5) is 3-4.

6. The foam backfill bottom hollow repair structure according to claim 1, characterized in that: The upper end of the inspection hole (5) forms a gypsum-based self-leveling inlet (51), and the lower end of the inspection hole (5) forms a gypsum-based self-leveling guide port (52) connected to the hollow area (4).

7. The foam backfill bottom hollow repair structure according to claim 1, characterized in that: The upper end surface of the gypsum-based self-leveling layer (6) is arranged horizontally, and the height of the upper end surface of the gypsum-based self-leveling layer (6) does not exceed the notch (111) of the caisson tank body (11).

8. The foam backfill bottom hollow repair structure according to claim 1, characterized in that: The upper end of the gypsum-based self-leveling layer (6) is located on the inner side of the waterproof layer (2) in the circumferential direction, and the upper end surface of the gypsum-based self-leveling layer (6) and the upper end of the waterproof layer (2) are both arranged flush with the notch (111) of the caisson body (11).

9. The foam backfill bottom hollow repair structure according to claim 1, characterized in that: The caisson tank body (11) is in the shape of a rectangular tank, the bottom of the caisson tank body (11) is arranged horizontally, and the side of the caisson tank body (11) is arranged vertically.

10. The foam backfill bottom hollow repair structure according to claim 1, characterized in that: The toilet caisson (1) is provided with a downpipe (7) which vertically penetrates the bottom of the toilet caisson (1).

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