Tailing pond flood drainage vertical shaft excavation supporting device

Abstract

The utility model discloses a tailing pond flood drainage vertical shaft excavation supporting device which comprises a plurality of arc-shaped supporting plates, a cylindrical supporting body is formed after the supporting plates are combined, a supporting device is arranged in the supporting body formed after combination, and an anti-seepage device is arranged between every two adjacent supporting plates. The device is easy to assemble, the supporting plate is firstly inserted into the excavated vertical shaft and then internally supported through the supporting device, equipment and personnel can pass through the interior of the supporting device, continuous construction is facilitated, inward collapse of the supporting plate can be avoided through supporting of the supporting device, the construction protection effect is achieved, and the device is suitable for application and popularization.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tailing pond flood discharge shaft excavation supporting device. BACKGROUND

[0002] The tailing pond is a place for storing tailings or other industrial waste slag after ore selection in a metal or non-metal mine.

[0003] The tailing pond flood discharge system is an important component system of the tailing pond, which generally includes a flood interception ditch, a spillway, a drainage well, a drainage pipe and a drainage tunnel.

[0004] The tailing pond is a man-made mud flow hazard source with high potential energy, and there is a dam break risk.

[0005] Therefore, the development of tailing pond flood discharge shaft excavation supporting construction technology for tailing pond safety, sustainable resource utilization and ecological safety has become an important topic in today's society. UTILITY MODEL CONTENT

[0006] The utility model solves the technical problem to provide a tailing pond flood discharge shaft excavation supporting device.

[0007] To solve the above problems, the utility model adopts the following technical scheme:

[0008] A tailing pond flood discharge shaft excavation supporting device, comprising a plurality of arc-shaped supporting plates, a plurality of supporting plates are combined to form a cylindrical supporting body, a supporting device is arranged in the inside of the supporting body formed after combination, and a seepage prevention device is arranged between adjacent supporting plates.

[0009] Preferably, the top of the supporting plate is provided with a vertical positioning hole.

[0010] Preferably, the two end faces of the supporting plate are provided with assembly grooves, two adjacent assembly grooves are combined to form a T-shaped groove, and the seepage prevention device is embedded in the T-shaped groove.

[0011] Preferably, the seepage prevention device is a cylindrical air bag body, the cross section of the air bag body is an I-shaped, the air bag body is clamped in the T-shaped groove formed by the assembly grooves, and the air bag body is connected with an air nozzle.

[0012] Preferably, a plurality of partitions are arranged in the air bag body, a plurality of independent air chambers are formed in the air bag body through the partitions, and each air chamber is matched with an air nozzle.

[0013] Preferably, the supporting device comprises a steel ring body, a threaded hole corresponding to the support plate is arranged at the outer wall of the ring body, and a bolt is assembled through the threaded hole, the bolt is screwed out from the inside of the ring body to the outside, and is abutted against the inner wall of the support plate after being screwed out.

[0014] Preferably, a plurality of lifting lugs are arranged in the inner ring of the ring body.

[0015] The beneficial effects of the utility model are:

[0016] The device is easy to disassemble and transport, and the support plates can be stacked during transportation.

[0017] The device is easy to assemble, the support plates are first inserted into the excavated shaft, and then are internally supported through the supporting device, the inside of the supporting device can be passed through by equipment and personnel, construction is facilitated, the support of the supporting device can avoid the inward collapse of the support plates, construction protection is achieved, and the device is suitable for popularization and use. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0019] Figure 1 It is a structural schematic view of the utility model;

[0020] Figure 2 It is an enlarged view of A;

[0021] Figure 3 It is a front view of the ring body;

[0022] Figure 4 It is a perspective view of the anti-seepage device;

[0023] Figure 5 It is a sectional view of B-B. DETAILED DESCRIPTION

[0024] All the features disclosed in this specification, or all the steps of any method or process disclosed in this specification, can be combined in any combination, except where it is specifically stated that a combination is not possible.

[0025] Any feature disclosed in this specification, unless stated otherwise, can be replaced by any equivalent or other technically equivalent feature. That is, each feature is only one example of a range of equivalent or similar features.

[0026] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "central", "end", "length", "outer end" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0027] In addition, in the description of the utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In the utility model, unless otherwise explicitly specified and limited, the terms "set", "sleeve joint", "connection", "penetration", "plug-in" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] Referring to Figure 1 The utility model discloses a tailing pond flood discharge shaft excavation supporting device, including a plurality of arc supporting plate 1, a plurality of supporting plate 1 combination forms a cylindrical supporting body, set up supporting device 2 in the inside of the supporting body formed after combination, set up anti -infiltration device 3 between adjacent supporting plate 1.

[0030] In the above technical scheme, the supporting plate 1 can be overlapped and stacked during transportation, which is more convenient for transportation. The internal supporting device 2 provides internal support after the installation of the supporting plate 1 is completed, so as to avoid the collapse of the supporting plate 1.

[0031] The supporting device is provided with two upper and lower supporting devices, which form an operation space in the middle after the installation of the supporting device 2 is completed, facilitating further downward construction.

[0032] The anti-infiltration device 3 can be inflated and expanded to form a seal between adjacent supporting plates 1, thereby avoiding water seepage during construction.

[0033] After excavation is completed, an inner formwork is erected on the inner side of the supporting device 2, and then the supporting device 2 and the supporting plate 1 are removed, so that pouring can be started.

[0034] Referring to Figure 2As shown, the top of the support plate 1 is provided with a vertical through positioning hole 101.

[0035] The positioning hole 101 can be inserted into a positioning rod, which is an anchor rod with a length greater than the depth of the excavated shaft.

[0036] As shown, Figure 2 As shown, the two end faces of the support plate 1 are provided with assembly grooves 102, and two adjacent assembly grooves 102 form a T-shaped groove, and the anti-seepage device 3 is embedded in the T-shaped groove.

[0037] The combined T-shaped groove can better hold the anti-seepage device 3, increase the stability of the anti-seepage device 3 after inflation, and the anti-seepage device 3 is in interference fit with the T-shaped groove after inflation to form a seal.

[0038] As shown, Figure 4 and Figure 5 As shown, the anti-seepage device 3 is a cylindrical air bag body 31, the cross section of the air bag body 31 is an I-shaped, the air bag body 31 is clamped in the T-shaped groove formed by the assembly grooves 102, and the air bag body 31 is connected with an air nozzle 32.

[0039] In the above technical solution, the air nozzle 32 is inflated, and the air bag body 31 with an I-shaped cross section can form a seal between the two support plates 1, increase the sealing performance, and avoid leakage.

[0040] As shown, Figure 4 and Figure 5 As shown, a plurality of partitions 33 are arranged in the air bag body 31, a plurality of independent air chambers 34 are formed in the air bag body 31 by the partitions 33, and each air chamber 34 is matched with one air nozzle 32.

[0041] This technical solution mainly avoids the case that all air chambers are deflated when one air chamber of the air bag body 31 is deflated.

[0042] As shown, Figure 2 and Figure 3 As shown, the support device 2 includes a steel ring body 21, a threaded hole 22 corresponding to the support plate 1 is arranged on the outer wall of the ring body 21, a bolt 23 is assembled through the threaded hole, the bolt 23 is rotated outward from the inside of the ring body 21 to the outside, and after being rotated out, it abuts against the inner wall of the support plate 1.

[0043] In this technical solution, the ring body 21 is steel, the vertical height is 20 cm, and the wall thickness is 12 mm. The ring body 21 plays a role of internal support, and the bolt 23 is rotated outward to abut against the support plate, thereby playing a role of positioning. After the bolt 23 is completely rotated out, the ring body 21 is supported on the inside of the support plate 1.

[0044] As shown,Figure 1 As shown, the inner ring of the ring body 21 is provided with a plurality of lifting lugs 24.

[0045] The lifting lugs 24 are provided to facilitate hoisting construction.

[0046] Project technical route:

[0047] 1. Comprehensive investigation and design: Conduct sufficient geological survey and engineering design before construction, understand geological conditions, soil structure and hydrological conditions, etc., and develop detailed construction plans.

[0048] 2. Reasonable selection of construction method: Select appropriate excavation method according to geological conditions, including conventional excavation, freezing method, blasting method, etc. Considering the characteristics of the tailings pond, a technically feasible, cost-effective and environmentally friendly construction method should be selected.

[0049] 3. Construction process control: Establish strict construction management system, strengthen on-site monitoring and control, and ensure the safety and stability of the construction process. Take necessary measures to prevent landslides, water gushing and other disaster accidents.

[0050] 4. Reasonable selection of supporting materials: According to the site conditions, select appropriate supporting materials, and consider using new high-strength and environmentally friendly supporting materials.

[0051] 5. Application of intelligent construction equipment: Introduce intelligent construction equipment and information management system to improve construction efficiency and accuracy. For example, use advanced equipment such as numerical control drilling machines for excavation and monitoring, and use data analysis and remote monitoring to improve construction management level.

[0052] Function:

[0053] Through the above reasonable vertical shaft excavation and support construction scheme, the safety, scientificity and efficiency of construction can be improved, and the goal of tailings pond flood drainage vertical shaft excavation and support construction can be achieved.

[0054] The upper well neck section of the flood drainage vertical shaft is excavated in two layers using a CAT320 backhoe, with an upper excavation depth of 3m and a lower excavation depth of 3.5m. The perimeter of the well neck section must be excavated with a slope of 1:1.25, and after the final concrete pouring is completed, the sand and gravel backfilling is carried out. According to the site construction conditions, it is proposed to directly excavate the blast hole from the center of the flood drainage vertical shaft base using a down-the-hole drill, and to complete all the hole drilling in the shaft section at one time, then perform the blasting with explosives. Since the local detonator wire length is 7.0m, the blasting depth is determined to be 60m each time, and after the blasting is completed, the blast hole condition is checked. After determining that the blast hole is unobstructed, the next cycle of blasting construction is carried out.

[0055] After the slag well is excavated, the whole section of the shaft section is excavated and supported, the lifting system is used to cooperate with manual drilling and blasting excavation, the hand drill is used for drilling, and the peripheral smooth blasting is used. The blasting of the flood discharge well adopts controlled blasting to ensure that the diameter of the slag after blasting is not greater than 0.5m to prevent well blockage. After the smoke of the blasting is dispersed, the risk is removed in time, and the safety is confirmed

[0056] According to the design scheme, the initial support is carried out in time after the excavation is completed, the shaft section is supported by anchor rod + steel mesh + sprayed concrete, the steel mesh and anchor rod are hoisted into the well by the crane, the mesh is manually hung, and the anchor rod is constructed by the hand drill. After the construction of the anchor rod and the mesh is completed, the sprayed protection is carried out, the dry spraying machine is used for spraying protection, and the dry spraying machine is placed at the well mouth.

[0057] The excavation and support construction of the shaft section is the key link of the whole shaft construction, and the construction quality determines the final engineering quality and economic benefit. Combined with the actual situation of the project, the construction steps of the shaft excavation and support construction are systematically summarized and analyzed, and the scheme is optimized according to the actual situation. Good results have been achieved after implementation, which provides a basis for subsequent similar project construction.

[0058] Process improvement method and application field:

[0059] 1. A flood control dam and a tailings pond main body are fixedly installed in the middle position of the flood discharge vertical well, which cooperates with the connecting pipe between the flood discharge vertical well and the connecting pipe. The baffle first filters out large-volume heavy impurities to avoid these large-volume heavy objects from entering the flood discharge vertical well with water, causing the connecting pipe or the flood discharge vertical well to be blocked, reducing the maintenance frequency of the device, and the bottom of the flood discharge vertical well is provided with a filtering assembly. The water flow is filtered and then enters the connecting pipe, and the filtered water flow enters the backflow tank and the backflow conduit enters the backflow pool, reducing the pollution of flood discharge and protecting the environment to achieve green development.

[0060] 2. Multiple water seepage holes are opened on the flood discharge vertical well, and a water flow sensor is installed in the flood discharge vertical well. The water flow sensor detects the water flow entering the flood discharge vertical well and transmits the detection information to the remote terminal. When the water flow exceeds the limited value, the information is transmitted to the control mainboard, which timely opens the backflow pool alarm device and the flood control dam alarm device to evacuate the surrounding people, and closes the flood discharge valve on the upper end of the tailings pond main body in time to stop the flood discharge and avoid accidents.

[0061] Advantages:

[0062] Simplify the construction steps, improve the construction efficiency, and reduce the labor input and construction risk.

[0063] Maturity, stability and reliability:

[0064] The construction technology of the project has been applied in the project and good results have been achieved. In the construction process, through the consideration of the construction technology, safety measures and equipment configuration of the flood drainage shaft, the related technology and process are continuously optimized and improved, which can further improve the stability and reliability of the project and the ability to respond to unexpected situations.

[0065] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments consistent with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0066] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the present application, unless otherwise specifically stated. At the same time, it should be understood that the sizes of the various parts shown in the drawings are not drawn in proportion. The techniques, methods and devices known to those skilled in the relevant art can not be discussed in detail, but in appropriate cases, the techniques, methods and devices should be considered as part of the authorized description. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so further discussion is not necessary if an item is defined in one drawing.

[0067] For ease of description, spatial relative terms such as "over", "above", "upper surface", "upper", etc. can be used herein to describe the spatial positional relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device as described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0068] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0069] It should be noted that the terms "first", "second", and the like, herein do not necessarily have an either chronological or spatial relation. Rather, these terms can be used solely to distinguish a certain specific entity from another entity. It should be understood that the terms so used in the description are interchangeable under appropriate circumstances and embodiments of the application described herein are capable of operating in other sequences than described or illustrated herein.

[0070] The preferred embodiments of the present application have been described above with the aid of drawing figures, and are not limited to those embodiments; instead, they will include any changes that do not constitute departures from the spirit and scope of the present application.

Claims

1. A tailings pond flood relief shaft excavation support apparatus, characterized by: The utility model provides a supporting plate (1) of arc, a plurality of supporting plates (1) form a cylindrical supporting body after combination, supporting device (2) is arranged in the supporting body formed after combination, and anti -infiltration device (3) is arranged between adjacent supporting plate (1).

2. The tailings pond flood drainage shaft excavation support apparatus of claim 1, wherein: The top of the supporting plate (1) is provided with a vertical through positioning hole (101).

3. The tailings pond flood drainage shaft excavation support apparatus of claim 1, wherein: The two end faces of the supporting plate (1) are provided with assembly grooves (102), two adjacent assembly grooves (102) form a T-shaped groove after combination, and the anti-infiltration device (3) is embedded in the T-shaped groove.

4. The tailings pond flood drainage shaft excavation support apparatus of claim 3, wherein: The anti-infiltration device (3) is a cylindrical air bag body (31), the cross section of the air bag body (31) is an I-shaped, the air bag body (31) is clamped in the T-shaped groove formed by the assembly grooves (102), and the air bag body (31) is connected with an air nozzle (32).

5. The tailings pond flood drainage shaft excavation support apparatus of claim 4, wherein: A plurality of partitions (33) are arranged in the air bag body (31), a plurality of independent air compartments (34) are formed in the air bag body (31) by the partitions (33), each air compartment (34) is matched with an air nozzle (32).

6. The tailings pond flood drainage shaft excavation support apparatus of claim 1, wherein: The supporting device (2) comprises a steel ring body (21), screw holes (22) corresponding to the supporting plate (1) are arranged on the outer wall of the ring body (21), bolts (23) are assembled through the screw holes, the bolts (23) are rotated outwards from the inside to the outside of the ring body (21), and the bolts (23) abut against the inner wall of the supporting plate (1) after being rotated out.

7. The tailings pond flood drainage shaft excavation support apparatus according to claim 6, wherein: A plurality of lifting lugs (24) are arranged in the ring body (21) in a ring shape.

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