CN221645721U - Flexible debris flow blocking dam structure - Google Patents

Abstract

The utility model discloses a flexible debris flow blocking dam structure which comprises a ground, wherein an inner reinforcement gabion is fixed on the surface of the ground, a plurality of groups of outer reinforcement gabions are fixed on the surface of the inner reinforcement gabion, C15 plain concrete is filled on the surface of the outer reinforcement gabion, and an upstream system drain hole and a downstream system drain hole are respectively formed in the C15 plain concrete. The reinforced gabions with different sizes at the inner part and the outer part are welded with each other to form an integral structure, so that the blocking dam has the performance of resisting the debris flow impact; the C15 plain concrete is arranged on the outer side of the reinforced gabion, so that the blocking dam is regular in shape, and flood and mud stone exceeding the blocking reservoir can flow downwards and leak conveniently; the inside upper and lower system wash port that sets up of C15 plain concrete is convenient for discharge the regular inflow of upstream, reduces and blocks dam upstream and submerges, can effectively block mud-rock flow to the foundation requirement is lower, and construction convenience, cost are lower.

Description

Flexible debris flow blocking dam structure

Technical Field

The utility model belongs to the technical field of debris flow blocking dams, and particularly relates to a flexible debris flow blocking dam structure.

Background

In the engineering construction field, especially in the fields of hydropower, water conservancy and traffic engineering, the engineering construction is difficult to avoid the debris flow ditch, and the safety risk is high. In various engineering measures for preventing and controlling debris flow, debris flow blocking dams are more common. In order to facilitate the release of flood and debris flow and resist the impact of the debris flow, a retaining dam generally adopts a concrete structure; however, the concrete blocking dam has the defects of higher requirement on the foundation, higher construction difficulty and higher manufacturing cost, and the application provides a flexible debris flow blocking dam structure for solving the problems.

Disclosure of utility model

In order to overcome the defects of the prior art, the utility model provides a flexible debris flow blocking dam structure, which is formed by mutually welding reinforced gabions with different sizes inside and outside to form an integral structure, so that the blocking dam has the performance of resisting debris flow impact; the C15 plain concrete is arranged on the outer side of the reinforced gabion, so that the blocking dam is regular in shape, and flood and mud stone exceeding the blocking reservoir can flow downwards and leak conveniently; and a system drain hole is formed in the C15 plain concrete, so that the upstream frequent inflow is conveniently discharged, the upstream inundation of the blocking dam is reduced, the debris flow can be effectively blocked, the foundation requirement is lower, the construction is convenient, and the construction cost is lower.

In order to solve the technical problems, the utility model provides a flexible debris flow blocking dam structure, which comprises a ground, wherein an inner reinforced gabion is fixed on the surface of the ground, a plurality of groups of outer reinforced gabions are fixed on the surface of the inner reinforced gabion, C15 plain concrete is filled on the surface of the outer reinforced gabion, and an upstream system drain hole and a downstream system drain hole are respectively formed in the C15 plain concrete.

As a preferable technical scheme of the utility model, the length, the width and the height of the inner reinforced gabion 6 are not less than 80cm.

As a preferable technical scheme of the utility model, the length x, the width x and the height of the external reinforced gabion are respectively 200cm x100cm.

As a preferred embodiment of the present utility model, the minimum thickness of the C15 plain concrete is 10cm.

As a preferable technical scheme of the utility model, the diameters of the upstream system drain hole and the downstream system drain hole are 20cm, and the interval is 1mx0.5m.

Compared with the prior art, the utility model has the following beneficial effects:

The reinforced gabions with different sizes at the inner part and the outer part are welded with each other to form an integral structure, so that the blocking dam has the performance of resisting the debris flow impact; the C15 plain concrete is arranged on the outer side of the reinforced gabion, so that the blocking dam is regular in shape, and flood and mud stone exceeding the blocking reservoir can flow downwards and leak conveniently; and a system drain hole is formed in the C15 plain concrete, so that the upstream frequent inflow is conveniently discharged, the upstream inundation of the blocking dam is reduced, the debris flow can be effectively blocked, the foundation requirement is lower, the construction is convenient, and the construction cost is lower.

Drawings

FIG. 1 is a side view of the present utility model;

fig. 2 is a cross-sectional view taken along the direction A-A in fig. 1.

Wherein: 1. ground surface; 2. an external steel bar gabion; 3. c15 plain concrete; 4. an upstream system drain hole; 5. a downstream system drain hole; 6. an internal steel bar gabion.

Detailed Description

Technical means for realizing the utility model; creating a feature; the objects and effects of the present utility model will be readily apparent from the following description of the preferred embodiments, but the following examples are not intended to be exhaustive. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model. The experimental methods in the following examples, unless otherwise specified, are conventional methods, and the materials used in the following examples; reagents and the like are commercially available unless otherwise specified.

Example 1

The flexible debris flow blocking dam structure shown in the figures 1-2 comprises a ground 1, wherein an inner reinforcement gabion 6 is fixed on the surface of the ground 1, a plurality of groups of outer reinforcement gabions 2 are fixed on the surface of the inner reinforcement gabion 6, C15 plain concrete 3 is filled on the surface of the outer reinforcement gabion 2, and an upstream system drain hole 4 and a downstream system drain hole 5 are respectively formed in the end parts of two sides of the C15 plain concrete 3. The length, width and height of the inner reinforced gabion 6 are not less than 80cm, the size is too small, the processing is inconvenient, the workload is correspondingly increased, and the local topography cannot be adapted if the workload is too large. The length x and the width x of the external reinforced gabion 2 are respectively 200cm x100cm, and are more difficult to carry when being larger than the size, and the weight is too small when being smaller than the size. The minimum thickness of the C15 plain concrete 3 is 10cm, the thickness is less than 10cm, and the durability and impact resistance of the C15 plain concrete layer are insufficient. The diameters of the upstream system drain hole 4 and the downstream system drain hole 5 are 20cm, the interval row distance is 1mx0.5m, and the larger aperture and the smaller interval row distance are convenient for increasing the drainage capacity.

The dam structure is formed by mutually welding reinforced gabions with different sizes inside and outside to form an integral structure, so that the dam has the performance of resisting the debris flow impact; the C15 plain concrete 3 is arranged on the outer side of the external reinforced gabion 2, so that the blocking dam body is regular, and flood and mud stone exceeding the blocking reservoir capacity can flow downwards and leak conveniently; and a system drain hole is formed in the C15 plain concrete 3, so that frequent inflow on the upstream is conveniently discharged, and the upstream inundation of the blocking dam is reduced. The facility can effectively block debris flow, has lower foundation requirements, is convenient to construct and has lower manufacturing cost.

Example 2

This embodiment describes a construction method of the flexible debris flow blocking dam structure according to embodiment 1, including the following steps:

S1, construction of an internal reinforcement gabion 6: the inner reinforced gabion is positioned at the outer side of the retaining dam; the internal reinforced gabion is prefabricated outside the site or welded on the site, the size is determined according to the terrain condition, the length, the width and the height are not less than 80cm, and the internal reinforced gabion is manually conveyed to a blocking dam position; after the internal reinforced gabion is in place, local materials are obtained, and broken stones near the retaining dam are filled into the reinforced gabion; the internal reinforced gabion and the peripheral reinforced gabion are firmly welded to form a whole;

s2, construction of an external steel bar gabion 2: the outer reinforcement gabion is positioned outside the inner reinforcement gabion and is orderly stacked on the outer side of the inner reinforcement gabion so as to ensure regular shape of the blocking dam body; the construction method is consistent with that of an internal reinforced gabion, and is performed by adopting off-site prefabrication or on-site welding, wherein the length x, the width x and the height are 200cmx100cmx100cm, and the construction method is carried to a blocking dam part manually; after the external reinforced gabion is in place, local materials are obtained, and broken stones near the retaining dam are filled into the external reinforced gabion; the outer reinforcement gabion and the inner reinforcement gabion are firmly welded to form a whole;

S3, constructing C15 plain concrete 3: the C15 plain concrete is positioned outside the reinforced gabion, has the minimum thickness of 10cm, is used for protecting the reinforced gabion and enables the retaining dam to form an integral structure; the aggregate can be made of sand gravel on site, manually stirred on site, and cast in situ by a vertical die to form a flat outer elevation;

S4, construction of an upstream system drain hole 4: the upstream system drain holes are arranged in the upstream side C15 plain concrete, the diameter is 20cm, and the interval row distance is 1mx0.5m;

S5, construction of a downstream system drain hole 5: the downstream system drain holes were arranged in the downstream side C15 plain concrete, 20cm in diameter, and 1mx0.5m in pitch.

The foregoing shows and describes the basic principles of the utility model; the main features and advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (5)

1. The utility model provides a flexible mud-rock flow barrage structure, includes ground (1), its characterized in that: the novel concrete drainage system is characterized in that an inner steel bar gabion (6) is fixed on the surface of the ground (1), a plurality of groups of outer steel bar gabions (2) are fixed on the surface of the inner steel bar gabion (6), C15 plain concrete (3) is filled on the surface of the outer steel bar gabion (2), and an upstream system drainage hole (4) and a downstream system drainage hole (5) are respectively formed in the C15 plain concrete (3).

2. A flexible debris flow dam structure according to claim 1, wherein: the length, width and height of the inner steel bar gabion (6) are not less than 80cm.

3. A flexible debris flow dam structure according to claim 1, wherein: the length x, the width x and the height of the external reinforcement gabion (2) are 200cm x100cm respectively.

4. A flexible debris flow dam structure according to claim 1, wherein: the minimum thickness of the C15 plain concrete (3) is 10cm.

5. A flexible debris flow dam structure according to claim 1, wherein: the diameters of the upstream system drain hole (4) and the downstream system drain hole (5) are 20cm, and the interval row distance is 1mx0.5m.