Arched steel structure fabricated retaining wall of mobile crushing station

Abstract

The invention discloses an arched steel structure fabricated retaining wall of a mobile crushing station, and belongs to the technical field of mine crushing stations. Comprising a foundation and a retaining wall frame which is inserted into the foundation and formed by E-shaped steel columns, H-shaped steel columns and cross-shaped steel columns, arched corrugated steel plates are connected to the frame to form a retaining wall body, and the arched corrugated steel plates have good circumferential rigidity, axial flexibility, deformation resistance and foundation adaptability and can meet the special requirements of unfavorable geology. Factory processing and on-site assembly are separately implemented, so that the construction period is greatly shortened; the construction is not influenced by temperature and environment, and the construction period is prolonged; large mechanical equipment is not needed for transportation and on-site splicing construction, only manual operation is needed for most splicing, construction is convenient and fast, operation is easy, and cost reduction and quality control are facilitated; the position of the fabricated retaining wall can be adjusted at any time along with movement of the working face of the crushing station, and the full-life-cycle investment cost of the crushing station is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of mine crushing stations, and in particular relates to an arched steel structure assembled retaining wall of a mobile crushing station. Background Art

[0002] At present, the primary crushing system of open-pit mines includes two forms: fixed crushing stations and semi-mobile crushing stations. They are located at the initial end of the mining and stripping system. Their production efficiency and operational reliability determine the productivity and safety of the entire open-pit mine. In the early years, fixed crushing stations were mainly used in China. Their high transportation costs, low degree of automation, and low assembly rate can no longer meet the new needs of my country's current mining development. According to statistics, my country has about tens of billions of tons of mining and stripping volume each year, and the market demand for crushing equipment is huge. With the expansion of open-pit mining, the performance of existing domestic crushing equipment can no longer meet the development needs of the production system, and has become a key link restricting the production capacity of my country's open-pit mining system.

[0003] The existing mobile crushing station needs to set steel ribs at a certain interval behind the steel retaining wall, which results in a very large amount of steel consumption. At the same time, it has high requirements on the bearing capacity of the foundation, and the soft foundation needs to be treated before construction. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an arched steel structure assembled retaining wall for a mobile crushing station, which solves the problem of coordinating the relocation of a semi-mobile crushing station with the development of mining engineering in a semi-continuous mining process.

[0005] The technical solution adopted by the invention is: an arched steel structure assembled retaining wall of a mobile crushing station, and its technical key points are: it includes a foundation base, E-shaped steel columns, H-shaped steel columns, cross-shaped steel columns, arched corrugated steel plates, steel anchor boxes, anchor rods, anchor blocks and cover plates. The foundation bases are interlocked with each other and arranged in sections along the length direction of the slope to form a foundation. The E-shaped steel columns, H-shaped steel columns and cross-shaped steel columns are respectively bolted to the foundation base to form a retaining wall frame. The arched corrugated steel plates are connected to the frame to form the retaining wall body. The cover plate is connected to the top of the retaining wall body. A steel anchor box is welded on the H-shaped steel column. One end of the anchor rod is fixed by passing through the assembly hole of the steel anchor box, and the other end is fixedly connected to the anchor block located on the back side of the retaining wall.

[0006] Furthermore, a concrete tenon and a fixing hole for inserting and positioning with a limiting steel rod on another foundation base are provided on one side wall of the foundation base; a concrete mortise and a limiting steel rod are provided on the other side wall of the foundation base, and a shear groove is provided on the upper surface of the foundation base.

[0007] Furthermore, the retaining wall frame is a box structure with a front opening surrounded by a side retaining wall frame and a rear retaining wall frame, wherein the side retaining wall frame is supported on both sides by E-shaped steel columns and cross-shaped steel columns, and a plurality of H-shaped steel columns are arranged at equal intervals between the E-shaped steel columns and the cross-shaped steel columns; the frame of the rear retaining wall is supported on both sides by two cross-shaped steel columns, and a plurality of H-shaped steel columns are arranged at equal intervals between the two cross-shaped steel columns.

[0008] Furthermore, the E-shaped steel column includes an E-shaped steel, a steel support and a shear key, the top of the E-shaped steel is connected to the steel support, and the bottom of the E-shaped steel is connected to the shear key.

[0009] Furthermore, the cross-shaped steel column comprises a cross-shaped steel, a shear key and a steel support, wherein the top of the cross-shaped steel is connected to the steel support, and the bottom is connected to the shear key.

[0010] Furthermore, the anchor box is composed of two anchor plates and a pressure plate with assembly holes. The two anchor plates are connected by a connecting plate. The backs of the two anchor plates are welded to the web of the H-shaped steel column, and the tops of the anchor plates are connected to the pressure plate.

[0011] Furthermore, a stiffening plate is connected at the connection between the pressure plate and the anchor plate.

[0012] Furthermore, the anchor rod is composed of a pad, a nut, an anchor rod body and an anchor head. The top of the anchor rod body is connected to the pad, the pad and the anchor rod body are fixed at the connection by a nut passing through the anchor rod body, and the anchor head is connected to the bottom of the anchor rod body.

[0013] The beneficial effects of the present invention are as follows: the arched steel structure assembled retaining wall of the mobile crushing station comprises: a foundation and a retaining wall frame formed by E-shaped steel columns, H-shaped steel columns and cross-shaped steel columns plugged into the foundation, an arched corrugated steel plate is connected to the frame to form a retaining wall body, the arched corrugated steel plate has good circumferential rigidity and axial flexibility, anti-deformation ability and foundation adaptability, and can meet the special requirements of poor geology; the soil-arch interaction makes the structure bear force reasonably and the load distribution uniform, the overall flexibility greatly improves the fatigue performance and seismic resistance of the structure, and there are no problems such as shrinkage creep and temperature change cracking of concrete; factory processing and on-site assembly are implemented separately, which greatly shortens the construction period (more than half); and the construction is not affected by temperature and environment, which prolongs the construction period; transportation and on-site splicing construction do not require large-scale mechanical equipment, most of the splicing only needs manual operation, the construction is convenient and fast, easy to operate, and is conducive to reducing costs and controlling quality; by adopting the above technical solution, the assembled retaining wall can adjust its position at any time with the movement of the working surface of the crushing station, reducing the investment cost of the crushing station throughout its life cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the present invention; Figure 2 A schematic diagram of structural details in an embodiment of the present invention; Figure 3 This is a schematic diagram of the foundation base structure of the retaining wall in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of an E-shaped steel column in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a cross-shaped steel column in an embodiment of the present invention; Figure 6 This is a schematic diagram of an arched corrugated steel structure in an embodiment of the present invention; Figure 7 Schematic diagram of the crossbeam structure of the retaining wall in an embodiment of the present invention; Figure 8 This is a schematic diagram of the steel anchor box structure in an embodiment of the present invention; Fig. 9 A schematic diagram of the anchor rod structure in an embodiment of the present invention; Explanation of the reference numerals in the accompanying drawings: 1. foundation base; 101. concrete tenon; 102. concrete mortise; 103. fixing hole; 104. limiting steel rod; 105. shear groove; 106. embedded bolt; 2. E-shaped steel column; 201. shear key; 202. column corner stiffening plate; 203. E-shaped steel; 204. steel support; 3. cross-shaped steel column; 301. shear key; 302. cross-shaped steel; 303. steel support; 4. arched corrugated steel; 5. cross beam; 6. steel anchor box; 601. anchor plate; 602. stiffening plate; 603. pressure plate; 7. anchor rod; 701. pad; 702. nut; 703. anchor rod body; 704. anchor head; 8. anchor block; 9. cover plate; 10. car stopper; 11 H-shaped steel column; 12 crusher; 13 retaining wall body. DETAILED DESCRIPTION

[0016] To make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the following is a brief description of the present invention in conjunction with the attached Figure 1-Figure 9 The present invention is further described in detail with reference to the accompanying drawings and specific embodiments.

[0017] In an embodiment of the present invention, a prefabricated retaining wall of a mobile crushing station includes a foundation base 1, an E-shaped steel column 2, an H-shaped steel column 11, a cross-shaped steel column 3, an arched corrugated steel 4, a cross beam 5, a steel anchor box 6, an anchor rod 7, an anchor block 8, a cover plate 9 and a car stopper 10. Each foundation base 1 is connected by bite to form a foundation, and the foundation is arranged in sections along the length direction of the slope protection. The E-shaped steel column 2, the H-shaped steel column 11 and the cross-shaped steel column 3 are respectively bolted to the foundation base 1 to form a retaining wall frame, and the arched corrugated steel plate 4 is connected to the frame by high-strength bolts to form a retaining wall body 13. The cover plate 9 is connected to the top opening of the box body. The steel anchor box 6 is welded to the H-shaped steel column 11, one end of the anchor rod 7 is fixed by passing through the assembly hole of the steel anchor box 6, and the other end is fixedly connected to the anchor block 8 located on the back side of the retaining wall. After the steel column and the anchor rod 7 are installed, the cover plate 9 and the car stopper 10 are assembled on the top of the steel column. The cover plate 9 of this embodiment provides a vehicle operating platform, and the vehicle stopper 10 prevents the wheels from falling into the aggregate hopper.

[0018] The retaining wall of this embodiment is a box structure with an opening at the front surrounded by a side retaining wall and a rear retaining wall. The side retaining wall frame of this embodiment is composed of an E-shaped steel column 2 and a cross-shaped steel column 3 as two-side supports. A plurality of H-shaped steel columns 11 are arranged at equal intervals between the E-shaped steel column 2 and the cross-shaped steel column 3 to provide vertical support for the middle part of the retaining wall. At the same time, the tops of the steel columns are connected by a cross beam 5 for horizontal support. The frame of the rear retaining wall is composed of two cross-shaped steel columns 3 as two-side supports. The middle of the two is also vertically supported by a plurality of H-shaped steel columns 11 arranged at equal intervals. The adjacent steel columns are connected by high-strength bolts to the arched corrugated steel plates 4. The arched corrugated steel plates 4 are overlapped or connected by steel sections. The flange plates of the arched corrugated steel plates 4 are bolted to form a retaining wall body 13. The back of the wall is composed of the outer arc surface of the arched corrugated steel plate 4. The arched corrugated plate has high in-plane rigidity and is not prone to deformation. When multiple arched steel plates are connected to each other, the overall rigidity is good and the ability to adapt to foundation deformation is strong.

[0019] Two concrete tenons 101 are provided on one side wall of the foundation base 1 of this embodiment, and a fixing hole 103 is provided between the two concrete tenons 101, and the fixing hole 103 extends to the inside of the foundation base 1, and is used for plugging and positioning with a limiting steel rod 104 on another foundation base 1; two concrete mortises 102 are provided on the other side wall of the foundation base 1, and a shear groove 105 is provided on the upper surface of the foundation base 1. The specific connection is: the foundation base 1 is engaged with the concrete tenons 102 of another adjacent foundation base through the concrete tenons 101, the foundation base 1 is engaged with the concrete tenons 101 of another adjacent foundation base through the concrete tenons 102, the limiting steel rod 104 on the foundation base 1 is inserted into the corresponding fixing hole on another adjacent foundation base, and the fixing hole 103 on the foundation base 1 is plugged and limited with the limiting steel rod on another adjacent foundation base to form a retaining wall foundation.

[0020] The E-shaped steel column 2 of this embodiment includes an E-shaped steel 203, a column angle stiffening plate 202, a steel support 204 and a shear key 201. The top of the E-shaped steel 203 is connected to the steel support 204. The steel support 204 is provided with a connection hole, and bolts are passed through the connection hole to fix the steel support 204 to the crossbeam 5. The column angle stiffening plate 202 is connected to the connection between the bottom of the E-shaped steel 203 and the support plate to reinforce the connection between the two. The shear key 201 is connected to the bottom of the support plate.

[0021] The cross-shaped steel column 3 of this embodiment includes a cross-shaped steel 302, a shear key 301 and a steel support 303. The top of the cross-shaped steel 302 is connected to the steel support 303. The steel support 303 is provided with a connecting hole for connecting with the cross beam 5. The bottom of the support plate connected to the bottom of the cross-shaped steel 302 is connected to the shear key 301. The support plate is provided with a mounting hole adapted to the embedded bolt 106 on the foundation base 1. The shear key 301 is inserted into the shear groove 105 on the upper part of the foundation base 1 and is bolted to the foundation base 1 by the embedded bolt 106 inserted into the mounting hole.

[0022] The bottom of the H-shaped steel column 11 of this embodiment is provided with a column foot stiffening plate, and the web is provided with transverse stiffening ribs.

[0023] The steel anchor box 6 of this embodiment is welded on the web of the H-shaped steel column 3, located on the inner side of the retaining wall, and is composed of two anchor plates 601, a pressure plate 603 with an assembly hole, and a stiffening plate 602. The two anchor plates 601 are connected by a connecting plate. The backs of the two anchor plates 601 are welded on the web of the H-shaped steel column 3. The top of the anchor plate 601 is connected to the pressure plate 603. The two anchor plates 601, the connecting plate, the pressure plate 603 and the surface of the H-shaped steel column 3 form a box structure. The connection between the pressure plate 603 and the anchor plate 601 is reinforced by connecting the stiffening plate 602. In addition, this embodiment is also provided with an assembly hole on the top of the pressure plate 603, and the anchor head 704 of the anchor rod 7 is inserted into the above-mentioned installation hole to fix one end of the anchor rod 7.

[0024] The anchor rod 7 of this embodiment is composed of a pad 701, a nut 702, an anchor rod body 703 and an anchor head 704. The top of the anchor rod body 703 is connected to the pad 701, and the connection between the pad 701 and the anchor rod body 703 is fixed by a nut 702 passing through the anchor rod body 703. The anchor head 704 is connected to the bottom of the anchor rod body 703. The anchor rod 7 passes through the assembly hole of the steel anchor box 6 to fix the top of the anchor rod body 703 of the anchor rod 7. The anchor block 8 of this embodiment is distributed on the back side of the retaining wall and is fixed to the anchor head 704 of the anchor rod 7. The depth of the anchor block 8 is determined according to the comprehensive conditions on site.

[0025] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An arched steel structure assembled retaining wall of a mobile crushing station, characterized in that: It includes a foundation base, an E-shaped steel column, an H-shaped steel column, a cross-shaped steel column, an arched corrugated steel plate, a steel anchor box, an anchor rod, an anchor block and a cover plate. The foundation bases are interlocked with each other and arranged in sections along the length direction of the slope protection to form a foundation. The E-shaped steel column, the H-shaped steel column and the cross-shaped steel column are respectively bolted to the foundation to form a retaining wall frame. The arched corrugated steel plate is connected to the frame to form the retaining wall body. The cover plate is connected to the top of the retaining wall body. A steel anchor box is welded on the H-shaped steel column. One end of the anchor rod is fixed by passing through an assembly hole of the steel anchor box, and the other end is fixedly connected to the anchor block located on the back side of the retaining wall.

2. The arched steel structure assembled retaining wall of a mobile crushing station according to claim 1 is characterized in that: One side wall of the foundation base is provided with a concrete tenon and a fixing hole for inserting and positioning with a limiting steel rod on another foundation base; the other side wall of the foundation base is provided with a concrete mortise and a limiting steel rod, and the upper surface of the foundation base is provided with a shear groove.

3. The arched steel structure assembled retaining wall of a mobile crushing station according to claim 1 is characterized in that: The retaining wall frame is a box structure with an opening at the front formed by a side retaining wall frame and a rear retaining wall frame, wherein the side retaining wall frame is supported on both sides by E-shaped steel columns and cross-shaped steel columns, and a plurality of H-shaped steel columns are arranged at equal intervals between the E-shaped steel columns and the cross-shaped steel columns; the frame of the rear retaining wall is supported on both sides by two cross-shaped steel columns, and a plurality of H-shaped steel columns are arranged at equal intervals between the two cross-shaped steel columns.

4. The arched steel structure assembled retaining wall of a mobile crushing station as claimed in claim 3 is characterized in that: The E-shaped steel column comprises an E-shaped steel, a steel support and a shear key. The top of the E-shaped steel is connected to the steel support, and the bottom of the E-shaped steel is connected to the shear key.

5. The arched steel structure assembled retaining wall of a mobile crushing station as claimed in claim 3 is characterized in that: The cross-shaped steel column comprises a cross-shaped steel, a shear key and a steel support. The top of the cross-shaped steel is connected to the steel support, and the bottom is connected to the shear key.

6. The arched steel structure assembled retaining wall of a mobile crushing station according to claim 1 is characterized in that: The anchor box is composed of two anchor plates and a pressure plate with assembly holes. The two anchor plates are connected by a connecting plate. The backs of the two anchor plates are welded to the web of the H-shaped steel column, and the tops of the anchor plates are connected to the pressure plate.

7. The arched steel structure assembled retaining wall of a mobile crushing station as claimed in claim 6 is characterized in that: A stiffening plate is also connected at the connection between the pressure plate and the anchor plate.

8. The arched steel structure assembled retaining wall of a mobile crushing station according to claim 1 is characterized in that: The anchor rod is composed of a pad, a nut, an anchor rod body and an anchor head. The top of the anchor rod body is connected to the pad, the pad and the anchor rod body are fixed at the connection by a nut passing through the anchor rod body, and the anchor head is connected to the bottom of the anchor rod body.

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