阅读说明：本技术 尾矿库内排洪涵管的加固结构及方法 (Reinforced structure and method for flood drainage culvert pipe in tailing pond ) 是由 陈天镭 王培鑫 李颖 于 2021-04-30 设计创作，主要内容包括：本发明公开了一种尾矿库内排洪涵管的加固结构及方法,属于尾矿库安全领域,解决了尾矿库内排洪涵管易损坏的问题。本发明紧贴涵管内壁沿涵管长度方向设置有多个钢拱圈,多个钢拱圈之间通过纵向支撑杆连接成整体框架,涵管内设有可移动的内滑模模板,以内滑模模板为模板在整体框架内浇筑有纤维混凝土。本发明在涵管内部设置钢拱圈及纵向支撑杆,对涵管管体形成初步支撑,又在钢拱圈内部浇筑纤维混凝土,钢拱圈和纤维混凝土对涵管形成强有力的支撑,从而极大地提高了涵管的承载力,保障了尾矿库的安全性能。本发明采用内滑模法施工纤维混凝土,适用于涵管内窄小空间的施工,施工完成后形成光滑的内壁,最大限度地减小对涵管泄洪能力的影响。(The invention discloses a reinforcing structure and a reinforcing method for a flood drainage culvert pipe in a tailing pond, belongs to the field of tailing pond safety, and solves the problem that the flood drainage culvert pipe in the tailing pond is easy to damage. A plurality of steel arch rings are arranged along the length direction of the culvert pipe and are tightly attached to the inner wall of the culvert pipe, the steel arch rings are connected into an integral frame through longitudinal support rods, a movable inner sliding formwork template is arranged in the culvert pipe, and fiber concrete is poured in the integral frame by taking the inner sliding formwork as a formwork. According to the invention, the steel arch rings and the longitudinal support rods are arranged in the culvert pipe to form primary support for the pipe body of the culvert pipe, and the fiber concrete is poured in the steel arch rings to form powerful support for the culvert pipe, so that the bearing capacity of the culvert pipe is greatly improved, and the safety performance of a tailing pond is ensured. The invention adopts the inner slip form method to construct the fiber concrete, is suitable for the construction of narrow space in the culvert pipe, forms a smooth inner wall after the construction is finished, and reduces the influence on the flood discharge capacity of the culvert pipe to the maximum extent.)

1. The utility model provides a reinforced structure of flood discharge culvert pipe in tailing storehouse which characterized in that: a plurality of steel arch rings (2) are arranged on the inner wall of the culvert pipe (1) in a clinging mode along the length direction of the culvert pipe (1), the steel arch rings (2) are connected into an integral frame through longitudinal supporting rods (3), a movable inner slip form template (5) is arranged in the culvert pipe (1), and fiber concrete (4) is poured in the integral frame by taking the inner slip form template (5) as a template.

2. The reinforced structure of the flood discharge culvert pipe in the tailings pond of claim 1, wherein: a plurality of steel arch rings (2) are uniformly distributed along the length direction of the culvert pipe (1).

3. The reinforced structure of the flood discharge culvert pipe in the tailings pond according to claim 1 or 2, characterized in that: the fiber concrete (4) is high-strength fiber concrete.

4. The reinforced structure of the flood discharge culvert pipe in the tailings pond of claim 3, wherein: the steel arch ring (2) is made of section steel.

5. The patterned structure of the flood discharge culvert pipe in the tailings pond of claim 4, wherein: the thickness of the steel arch ring (2) is 25-50 mm.

6. The patterned structure of the flood discharge culvert pipe in the tailings pond of claim 5, wherein: the total thickness of the fiber concrete (4) and the steel arch ring (2) is 30-60 mm.

7. A method for reinforcing flood discharge culvert pipes in a tailing pond is characterized by comprising the following steps:

firstly, constructing a plurality of steel arch rings (2) in close contact with the interior of a culvert pipe (1) along the length direction of the culvert pipe (1), and connecting the plurality of steel arch rings (2) into an integral frame through a longitudinal support rod (3);

step two, manufacturing an inner sliding die template (5) according to the shape and the size of the inner ring of the steel arch ring (2);

and step three, placing the inner sliding formwork template (5) in the integral frame, pouring fiber concrete (4) outside the inner sliding formwork template (5), after the poured fiber concrete (4) reaches the specified strength, pulling the inner sliding formwork template (5) to the next section, pouring the fiber concrete (4) in the section, and repeating the steps until the fiber concrete (4) is poured in the whole culvert pipe (1).

Technical Field

The invention belongs to the field of safety of tailing ponds, and particularly relates to a reinforcing structure and method for a flood drainage culvert pipe in a tailing pond.

Background

Engineering accidents such as culvert pipe damage, insufficient concrete strength and the like often occur to flood drainage culvert pipes in a tailing pond, and the repair is difficult due to the fact that the culvert pipes are deeply buried in the tailing pond and the difficulty in repair and reinforcement is large, major accidents can be caused if the culvert pipes are broken, and major hidden dangers are buried for the safety of the tailing pond.

Disclosure of Invention

The invention aims to provide a reinforced structure of a flood drainage culvert pipe in a tailing pond so as to solve the problem that the flood drainage culvert pipe in the tailing pond is easy to damage.

The invention also aims to provide a method for reinforcing the flood drainage culvert pipe in the tailing pond.

The technical scheme of the invention is as follows: the utility model provides a reinforced structure of flood discharge culvert pipe in tailing storehouse, hugs closely the culvert pipe inner wall and is provided with a plurality of steel arch rings along culvert pipe length direction, connects into whole frame through longitudinal support pole between a plurality of steel arch rings, is equipped with mobilizable interior slip form template in the culvert pipe, has pour fibre concrete in whole frame with interior slip form template as the template.

As a further improvement of the invention, a plurality of steel arch rings are uniformly distributed along the length direction of the culvert pipe.

As a further improvement of the invention, the fiber concrete is high-strength fiber concrete.

As a further improvement of the invention, the steel arch ring is made of section steel.

As a further improvement of the invention, the thickness of the steel arch ring is 25-50 mm.

As a further improvement of the invention, the total thickness of the fiber concrete and the steel arch ring is 30-60 mm.

A method for reinforcing flood discharge culvert pipes in a tailing pond comprises the following steps:

firstly, constructing a plurality of steel arch rings in close contact with the interior of a culvert pipe along the length direction of the culvert pipe, and connecting the plurality of steel arch rings into an integral frame through a longitudinal support rod;

step two, manufacturing an inner sliding die template according to the shape and the size of the inner ring of the steel arch ring;

and step three, placing the inner slip form template in the integral frame, pouring fiber concrete outside the inner slip form template, after the poured fiber concrete reaches the specified strength, pulling the inner slip form template to the next section, pouring the fiber concrete in the section, and repeating the steps until the fiber concrete is poured in the whole culvert pipe.

The invention has the beneficial effects that: according to the invention, the steel arch rings and the longitudinal support rods are arranged in the culvert pipe to form primary support for the pipe body of the culvert pipe, and the fiber concrete is poured in the steel arch rings to form powerful support for the culvert pipe, so that the bearing capacity of the culvert pipe is greatly improved, and the safety performance of a tailing pond is ensured. The steel arch ring is made of profile steel and is matched with fiber concrete to form a micro-arch ring concrete structure, so that the strength is high, the occupied space in the inner cavity of the culvert pipe is small, and the influence on the flood discharge capacity of the culvert pipe is small. The invention adopts the inner slip form method to construct the fiber concrete, is suitable for the construction of narrow space in the culvert pipe, forms a smooth inner wall after the construction is finished, and reduces the influence on the flood discharge capacity of the culvert pipe to the maximum extent.

Drawings

Fig. 1 is a schematic structural view of a reinforcing structure of a flood discharge culvert in a tailing pond according to the invention;

fig. 2 is a view a-a in fig. 1.

In the figure: 1-culvert pipe; 2-steel arch ring; 3-longitudinal support bars; 4-fiber concrete; 5-inner synovial membrane template.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, a plurality of steel arch rings 2 are arranged on the inner wall of a culvert pipe 1 along the length direction of the culvert pipe 1, the steel arch rings 2 are connected into an integral frame through longitudinal support rods 3, a movable inner sliding formwork template 5 is arranged in the culvert pipe 1, and fiber concrete 4 is poured in the integral frame by taking the inner sliding formwork 5 as a formwork.

A plurality of steel arch rings 2 are evenly distributed along the length direction of the culvert pipe 1.

The fiber concrete 4 is high-strength fiber concrete.

The steel arch ring 2 is made of I-shaped, L-shaped, T-shaped or C-shaped steel.

The thickness of the steel arch ring 2 is 25-50 mm. The total thickness of the fiber concrete 4 and the steel arch ring 2 is 30-60 mm.

A method for reinforcing flood discharge culvert pipes in a tailing pond comprises the following steps:

firstly, constructing a plurality of steel arch rings 2 in close contact with the interior of a culvert pipe 1 along the length direction of the culvert pipe 1, wherein the plurality of steel arch rings 2 are arranged at equal intervals, longitudinal support rods 3 are fixed among the steel arch rings 2, and the plurality of steel arch rings 2 are connected into an integral frame through the longitudinal support rods 3;

step two, manufacturing an inner slip form template 5 according to the shape and the size of the inner ring of the steel arch ring 2;

and step three, placing the inner sliding formwork template 5 in the integral frame and at one end of the culvert pipe 1, pouring fiber concrete 4 outside the inner sliding formwork template 5, after the poured fiber concrete 4 reaches the specified strength, pulling the inner sliding formwork template 5 to the next section through a jack, pouring the fiber concrete 4 in the section, and repeating the steps until the fiber concrete 4 is poured in the whole culvert pipe 1.

The invention is suitable for various shapes of flood discharge culvert pipes. The steel arch ring 2 made of the section steel and the high-strength fiber concrete 4 form a micro arch ring concrete structure to strongly support the culvert pipe 1, the fiber concrete is constructed by adopting an internal sliding die method, and a smooth inner wall is formed after the construction is finished. Through a simple structure and a proper construction method, the bearing capacity of the culvert pipe is improved, the influence on the flood discharge capacity of the culvert pipe is small, the safety performance of a tailing pond is guaranteed, and the method has strong popularization.