Assembled ditch system

Abstract

The utility model discloses an assembled ditch system, belongs to the technical field of farmland construction and municipal drainage, and aims to realize an assembled ditch system which is rapid in construction, reliable in connection, strong in integrity and good in durability. The ditch system comprises a foundation trench and a plurality of ditch pipe pieces which are installed in the foundation trench and connected with one another. A first connecting part is arranged at the first end of the ditch pipe piece, a second connecting part is arranged at the second end of the ditch pipe piece, the first connecting part is overlapped with the second connecting part of the adjacent ditch pipe piece, and clamping structures are arranged on the first connecting part and the second connecting part, so that the first connecting part is clamped with the second connecting part of the adjacent ditch pipe piece; and a cast-in-place flow state filling layer is arranged between the ditch duct piece and the inner wall of the foundation trench. The cast-in-place flow state filling layer can achieve self-compaction, compact filling on the outer side of the ditch duct piece can be achieved without vibrating or rolling, deformation of the ditch duct piece is effectively prevented, and the integrity and durability of a ditch system are enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of farmland construction and municipal drainage, and relates to an assembled ditch system. Background Art

[0002] There are usually three methods for excavating the existing farmland ditches after the foundation trench is excavated, namely, laying anti-seepage materials, cast-in-place concrete, and brick masonry. The quality of ditches simply paved with anti-seepage materials is poor, the lifespan is very short, and they are only for temporary use, which is not suitable for high-standard farmland construction. Cast-in-place concrete requires a certain thickness of concrete, which will occupy a large area of ​​farmland; and formwork is required before pouring concrete, which is large in engineering volume, time-consuming, labor-intensive, and expensive. Brick masonry also requires workers to lay bricks on site, which takes a long time to complete, has high labor costs, and is difficult to meet the anti-seepage requirements.

[0003] In addition, if the prefabricated pipe segments are simply spliced ​​in the foundation trench after excavation, due to the irregular shape of the outer side of the pipe segments and the loose splicing of the pipe segments, it is easy for the pipe segments to have poor connections, gaps between the pipeline and the foundation trench, and difficulty in filling them tightly. This not only affects the appearance of the ditch, but also is prone to problems such as uneven settlement of the foundation trench, deformation and cracking of the pipe segments, and ditch leakage during long-term use, which seriously affects the use of the ditch and makes it even more difficult to meet the requirements of high-standard farmland construction. Summary of the invention

[0004] The utility model proposes an assembled ditch system in view of the problems existing in the prior art, aiming at overcoming the defect that the pipe segments in the prior ditch system are prone to deformation.

[0005] The utility model is achieved in this way:

[0006] An assembled ditch system comprises a base ditch and a plurality of interconnected ditch segments installed in the base ditch;

[0007] The invention is characterized in that the first end of the ditch segment has a first connection portion, the second end of the ditch segment has a second connection portion, the first connection portion overlaps with the second connection portion of an adjacent ditch segment, and a clamping structure is provided on the first connection portion and the second connection portion so that the first connection portion is clamped with the second connection portion of the adjacent ditch segment;

[0008] A cast-in-place fluidized filling layer is provided between the ditch segment and the inner wall of the foundation trench.

[0009] The clamping structure comprises a trapezoidal clamping slot located at the first connecting part and a trapezoidal buckle located on the second connecting part, the notch of the trapezoidal clamping slot is the upper bottom of the trapezoid, and the trapezoidal buckle is clamped and matched with the trapezoidal clamping slot.

[0010] The trapezoidal slot is located at the outer end of the first connecting portion, and a sealing strip is provided between the inner end of the first connecting portion and the second connecting portion.

[0011] The inner side of the first connection portion is recessed outward relative to the middle of the ditch segment, the outer side of the second connection portion is recessed inward relative to the middle of the ditch segment, and the inner surface of the second connection portion is flush with the inner surface of the middle of the ditch segment.

[0012] The upper end of the ditch pipe segment has a folded portion extending outward.

[0013] The folding portion is in a stepped shape.

[0014] The first connection part and the second connection part are fixed at the folded part and the bottom by bolts.

[0015] A graded recycled aggregate filling layer is provided between the bottom of the ditch segment and the bottom wall of the foundation trench.

[0016] The ditch segments are made of resin, glass fiber or filler.

[0017] Reinforcement ribs are arranged every 15-30cm on the outside of the ditch segments, and the width of the reinforcement ribs is 3-6cm.

[0018] The utility model has the following beneficial effects:

[0019] (1) This system can realize prefabricated construction, improve construction efficiency, reduce labor costs, and shorten construction period. The ditch segments that can be formed by high-temperature molding are used as the main body to ensure the system's anti-seepage performance. The factory production of ditch segments as prefabricated products can ensure the quality of the project. The cast-in-place flow filling layer can achieve self-compacting, and can achieve dense filling on the outside of the ditch segments without vibration or rolling, effectively preventing the deformation of the ditch segments and reducing the risk of water leakage.

[0020] (2) This system can reduce the land area of ​​the ditch and reduce the transportation and construction costs. By using prefabricated molded ditch segments, the footprint of the ditch segments in the thickness direction can be controlled within 5-8 cm. Compared with cast-in-place concrete ditches, concrete segment ditches or brick ditches, the thickness is greatly reduced, which can achieve efficient use of farmland area. Prefabricated molded ditch segments are lighter in weight, which can greatly reduce transportation and construction costs compared to concrete segments, reduce the use of machinery, and have lower requirements for transportation roads, and have a wider range of applications.

[0021] (3) The system has high integrity and good durability. Although the assembly design is adopted, the snap-fit ​​structure, bite connection structure, sealing strip and bolt connection are designed at the connection of the ditch segments, so that the ditch segments have a certain deformation ability when the temperature or force changes, and the anti-seepage performance of the connection is guaranteed; and a graded recycled aggregate cushion layer is set under the ditch segments to avoid uneven settlement after long-term use in soft soil areas; reinforcing ribs are set on the outside of the ditch segments, and the outer periphery of the ditch segments is filled with flowing filling materials, so that the ditch segments, flowing filling materials and surrounding soil can achieve uniform and coordinated force, avoiding the damage of thinner ditch segments during long-term use: the above design greatly improves the integrity and durability of the system, and can meet the service life requirements of canal buildings.

[0022] (4) This system can realize the disposal and resource utilization of construction waste. Recycled coarse and fine aggregates, recycled micro-powder, mineral powder and other construction waste can be used in the graded recycled aggregate filling layer. The engineering slag generated by the excavation of the original foundation trench can be used in the cast-in-place flow filling layer. It can also use engineering mud, construction waste micro-powder, construction waste fine powder and other construction waste. During the construction of the system, a large amount of construction waste can be consumed and utilized, reducing the amount of earthwork transported outside, reducing the project cost, and improving resource utilization, which has significant economic, social and environmental benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a cross-sectional view of part of the structure of the ditch system;

[0024] Figure 2 It is a schematic diagram of the structure of the ditch segment from a first angle;

[0025] Figure 3 This is a schematic diagram of the second angle structure of the ditch segment.

[0026] Explanation of the accompanying drawings: 100, ditch segment; 110, first connecting portion; 111, trapezoidal slot; 120, second connecting portion; 121, trapezoidal buckle; 130, folding portion; 140, reinforcing rib; 200, cast-in-place fluidized filling layer; 300, graded recycled aggregate filling layer. DETAILED DESCRIPTION

[0027] The following will further describe the specific implementation of the utility model in combination with the accompanying drawings of the embodiments, so that the technical solution of the utility model is easier to understand and grasp. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0028] This embodiment provides an assembled channel system, such as Figure 1-3As shown, it includes a base trench and a plurality of interconnected ditch segments 100 installed in the base trench; the first end of the ditch segment 100 has a first connecting portion 110, and the second end of the ditch segment 100 has a second connecting portion 120, the first connecting portion 110 overlaps with the second connecting portion 120 of an adjacent ditch segment 100, and a clamping structure is provided on the first connecting portion 110 and the second connecting portion 120 to enable the first connecting portion 110 to be clamped with the second connecting portion 120 of the adjacent ditch segment 100, and the clamping structure enables the adjacent ditch segments 100 to be reliably connected even when the ditch segments 100 are slightly deformed due to changes in temperature and external force, thereby reducing the risk of water leakage at the interface.

[0029] like Figure 1 As shown, a cast-in-place fluidized filling layer 200 is provided between the side wall of the ditch segment 100 and the inner wall of the foundation trench, so that the ditch segment 100, the cast-in-place fluidized filling layer 200, and the surrounding soil are evenly and synergistically stressed, the integrity of the system is enhanced, and the thinner ditch segment 100 is prevented from being damaged during long-term use. The cast-in-place fluidized filling material uses in-situ excavated engineering slag, or engineering mud, construction waste micro-powder, construction waste fine powder and other construction waste as the main raw materials, and is uniformly mixed with water and curing agent. The mass ratio of construction waste, water, and curing agent is 1:0.8-1.5:0.05-0.1. The cast-in-place fluidized filling material has the characteristics of good fluidity and self-compacting.

[0030] The clamping structure includes a trapezoidal clamping groove 111 located on the first connecting portion 110 and a trapezoidal buckle 121 located on the second connecting portion 120, the notch of the trapezoidal clamping groove 111 is the upper bottom of the trapezoid, and the trapezoidal buckle 121 is clamped and matched with the trapezoidal clamping groove 111. The trapezoid is an isosceles trapezoid, and the acute angle is 35 degrees, which can achieve stable structural engagement of adjacent segments and facilitate press molding.

[0031] The trapezoidal slot 111 is located at the outer end of the first connection portion 110 , and a sealing strip is provided between the inner end of the first connection portion 110 and the second connection portion 120 .

[0032] like Figure 2 , 3 As shown, the inner side of the first connection portion 110 is recessed outward relative to the middle of the ditch segment 100, the outer side of the second connection portion 120 is recessed inward relative to the middle of the ditch segment 100, and the inner surface of the second connection portion 120 is flush with the inner surface of the middle of the ditch segment 100. This facilitates water flow in the ditch segment 100 more smoothly.

[0033] like Figure 1As shown, the upper end of the ditch segment 100 has a folding portion 130 extending outward. The folding portion 130 can cover the cast-in-place fluidized filling layer 200 to a first extent, making the ditch more beautiful and reducing the risk of loss of the cast-in-place fluidized filling layer 200. The folding portion 130 is stepped to enhance the strength of the folding portion 130. The first connecting portion 110 and the second connecting portion 120 are fixed at the folding portion 130 and the bottom by bolts. The bolts are conducive to the close fit between the first connecting portion 110 and the second connecting portion 120 and the sealing strip, improving the sealing performance, and can also improve the connection strength of adjacent ditch segments 100.

[0034] like Figure 1 As shown, a graded recycled aggregate filling layer 300 is provided between the bottom of the ditch segment 100 and the bottom wall of the foundation trench. The graded recycled aggregate is filled in the lower part of the ditch segment 100 to form the graded recycled aggregate filling layer 300, so as to avoid uneven settlement caused by long-term use in soft soil areas. The graded recycled aggregate is made of raw materials such as coarse and fine aggregates recycled from demolition garbage and recycled micro powder, which are evenly mixed after grading. In other optional embodiments, if the foundation soil is relatively hard, the graded recycled aggregate filling layer 300 can be omitted.

[0035] The ditch segment 100 is made of resin, glass fiber, filler, etc., and is formed by high-temperature molding. The outer side of the ditch segment 100 is provided with reinforcing ribs 140 every 30 cm, and the width of the reinforcing ribs 140 is 4 cm. The inner wall of the ditch segment 100 is provided with a vertical imitation stone texture and is sandblasted to make the shape more beautiful. In other optional embodiments, the outer side of the ditch segment 100 is provided with reinforcing ribs 140 every 15, 20, 22 or 29 cm, and the width of the reinforcing ribs 140 is 3, 4.5, or 6 cm.

[0036] The construction method of the assembled ditch system includes the following steps:

[0037] (i) Excavation of foundation pit.

[0038] Excavate the foundation pit according to the designed dimensions and level the bottom surface of the foundation pit.

[0039] (ii) Filling with recycled aggregate and installing trench segments 100.

[0040] Fill the graded recycled aggregate at the bottom of the foundation trench to form a graded recycled aggregate filling layer 300 with a thickness of 3-5 cm. Level the surface, place sealing strips at both ends of the ditch segment 100, and the sealing strips are rubber waterproof strips. The first connecting parts 110 and the second connecting parts 120 of adjacent ditch segments 100 are aligned and spliced ​​with each other, and bolts are installed at the upper and bottom ends of the connection to fix them tightly.

[0041] In other optional embodiments, if the soil at the bottom of the foundation pit is relatively hard, the step of filling with recycled aggregate can be omitted, making the construction more convenient.

[0042] (iii) Filling with cast-in-place fluidized filling material.

[0043] The material is densely filled between the outer side of the ditch segment 100 and the side wall of the foundation trench to form a cast-in-place fluidized filling layer 200 .

Claims

1. An assembled ditch system, comprising a base ditch and a plurality of interconnected ditch segments (100) installed in the base ditch; It is characterized in that The first end of the ditch segment (100) has a first connection portion (110), and the second end of the ditch segment (100) has a second connection portion (120), the first connection portion (110) overlaps with the second connection portion (120) of an adjacent ditch segment (100), and the first connection portion (110) and the second connection portion (120) are provided with a clamping structure so that the first connection portion (110) is clamped with the second connection portion (120) of the adjacent ditch segment (100); A cast-in-place fluidized filling layer (200) is provided between the ditch segment (100) and the inner wall of the foundation trench.

2. The assembled ditch system according to claim 1, characterized in that: The snap-fit ​​structure comprises a trapezoidal snap-fit ​​groove (111) located on the first connecting portion (110) and a trapezoidal snap-fit ​​buckle (121) located on the second connecting portion (120); the notch of the trapezoidal snap-fit ​​groove (111) is a trapezoidal upper bottom; the trapezoidal snap-fit ​​buckle (121) and the trapezoidal snap-fit ​​groove (111) are snap-fitted.

3. The assembled ditch system according to claim 2, characterized in that: The trapezoidal slot (111) is located at the outer end of the first connecting portion (110), and a sealing strip is provided between the inner end of the first connecting portion (110) and the second connecting portion (120).

4. The assembled ditch system according to claim 1, characterized in that: The inner side of the first connecting portion (110) is recessed outwardly relative to the middle portion of the ditch segment (100), the outer side of the second connecting portion (120) is recessed inwardly relative to the middle portion of the ditch segment (100), and the inner surface of the second connecting portion (120) is flush with the inner surface of the middle portion of the ditch segment (100).

5. The assembled ditch system according to claim 1, characterized in that: The upper end of the ditch segment (100) has a folded portion (130) extending outward.

6. The assembled ditch system according to claim 5, characterized in that: The folded portion (130) is in a stepped shape.

7. The assembled ditch system according to claim 5, characterized in that: The first connecting portion (110) and the second connecting portion (120) are fixed at the folded portion (130) and the bottom by bolts.

8. The assembled ditch system according to claim 1, characterized in that: A graded recycled aggregate filling layer (300) is provided between the bottom of the ditch segment (100) and the bottom wall of the foundation trench.

9. The assembled ditch system according to claim 1, characterized in that: The ditch segment (100) is made of resin, glass fiber or filler.

10. The assembled ditch system according to claim 1, characterized in that: Reinforcement ribs (140) are arranged at intervals of 15-30 cm on the outer side of the ditch segment (100), and the width of the reinforcement ribs (140) is 3-6 cm.

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