Concrete conveying device for complex terrain in mountainous area and application method thereof

Abstract

The present application belongs to the mountainous water conservancy construction technical field, more specifically, especially relates to a kind of concrete conveying device for mountainous complex terrain and application method.It includes conveying pipeline, flange assembly, fixing device and anti-leakage layer, characterized by: the both ends of conveying pipeline are provided with flange assembly, anti-leakage layer is arranged at the connecting place of conveying pipeline and flange assembly, fixing device is arranged at the outside of flange assembly, flange assembly can be fastened on the outside of conveying pipeline, and concrete is transported in complex terrain through conveying pipeline.The present application has the advantages and positive effects that: the present embodiment realizes light self-weight, low cost, easy installation, disassembly, cleaning, convenient carrying and easy storage, flexible material can be inserted in the gap between trees;the inner wall of pipeline lining is smooth, not easy to bond with concrete, and there is no pipe blocking and pipe blocking phenomenon during concrete pouring;the outer lining of pipeline can improve the wear resistance and scratch resistance of conveying pipeline.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of mountainous water conservancy engineering construction, more specifically, especially relates to a concrete conveying device for complex terrain in mountainous areas and an application method. BACKGROUND

[0002] With the increase of national infrastructure construction, in addition to urban and rural infrastructure construction, there are many water conservancy projects, power engineering, communication engineering and the like in the mountains gradually entering the sight of people, and various difficulties brought by environmental factors to engineering construction, such as concrete pouring in mountainous areas.

[0003] At present, the concrete pouring technology in China is mainly in the environment of flat terrain in cities, towns and rural areas, and the pouring methods mainly include sky pump, ground pump, chute, guide pipe, flexible guide pipe or direct pouring; the existing mountainous water conservancy engineering has the problems of long linearity, complex terrain, large distance from the existing highway in some positions, large height difference, high cost of access engineering and the like, and the width of the existing highway is insufficient to erect large equipment such as sky pump and crane.

[0004] When the free falling height of concrete exceeds two meters, segregation phenomenon will occur. The occurrence of segregation will greatly reduce the strength and bearing capacity of the concrete structure, affect the safety of the concrete structure, and also cause the concrete structure to have poor performance, such as sand lines, exposed aggregate, exposed steel bars and the like, and affect the durability of the concrete structure. Therefore, when the pouring height of the concrete structure exceeds two meters, vertical pouring usually uses guide pipe, flexible guide pipe or chute for conveying, which plays a role in gathering and condensing concrete, preventing dispersion and buffering, and prevents concrete segregation to a certain extent.

[0005] The chute needs a certain angle to ensure that the concrete flows in the chute by itself under the action of gravity. In order to adjust the angle of the chute, a stable and reliable chute support is often needed to be erected, which increases the pouring cost and the risk of high-altitude operation of support erection, and a large number of trees need to be cut down. In addition, the opening position of the chute is fixed, and the distribution of the concrete in the mold is also limited, so the use place of the chute is very limited, and it is mainly used for pouring concrete in small area shallow foundation pit.

[0006] When the pouring drop of concrete is not large, the flexible guide pipe and the guide pipe can play a certain effect of preventing segregation, but when the pouring drop is large, due to the different bulk densities of the gravel, mortar and cement slurry in the concrete mixture and the different frictional resistance of the flexible guide pipe wall, the free falling speed will be different after a certain distance, and segregation is inevitable. The existing guide pipe on the market is a rigid guide pipe made of thin steel and is not suitable for installation and disassembly in mountainous areas. SUMMARY

[0007] The application provides a concrete conveying device for complex terrains in mountainous areas.

[0008] The application adopts the technical scheme that a concrete conveying device for complex terrains in mountainous areas comprises a conveying pipeline, a flange assembly, a fixing device and an anti-seepage layer.

[0009] The flange assembly is arranged at the two ends of the conveying pipeline, the anti-seepage layer is arranged at the joint of the conveying pipeline and the flange assembly, and the fixing device is arranged outside the flange assembly, so that the flange assembly can be fastened outside the conveying pipeline.

[0010] Further, the conveying pipeline comprises a first conveying pipeline and a second conveying pipeline, and the first conveying pipeline and the second conveying pipeline are connected through the flange assembly.

[0011] Further, the conveying pipeline is provided with a pipeline outer lining and a pipeline inner lining, the pipeline inner lining is arranged in the conveying pipeline and closely adheres to the pipeline outer lining, the pipeline outer lining can improve the bearing strength of the conveying pipeline, and the pipeline inner lining can reduce the friction of the conveying pipeline caused by the transportation of concrete.

[0012] Further, the conveying pipeline is provided with a pipeline outer lining turnup and a pipeline inner lining turnup, the pipeline outer lining turnup can be used for connecting the flange assembly, and the pipeline inner lining turnup can be used for the concrete to enter the pipeline inner lining.

[0013] Further, the flange assembly comprises a first flange, a second flange and a third flange, the first flange is arranged at the top of the pipeline inner lining turnup, the second flange is arranged outside the pipeline inner lining, and the third flange is arranged at the bottom surface of the pipeline outer lining turnup.

[0014] Further, the ring body of the flange assembly is provided with a bolt hole, and the fixing device can be arranged in the bolt hole.

[0015] Further, the fixing device is provided with a fixing bolt, the fixing bolt can be arranged in the bolt hole to fix the flange assembly.

[0016] Further, the anti-seepage layer is provided with a rubber gasket, the rubber gasket is arranged at the joint of the flange assembly and the conveying pipeline to prevent the seepage of the concrete.

[0017] Further, the conveying pipeline is a flexible conveying pipeline.

[0018] Further, an application method of a concrete conveying device for complex terrains in mountainous areas, characterized in that the steps of the method comprise:

[0019] The flange assembly is installed on the outside of the conveying pipeline, the anti-leakage layer is installed at the connection of the flange assembly and the conveying pipeline, the anti-leakage layer can prevent the flange assembly from sliding off the conveying pipeline and can prevent concrete from leaking from the conveying pipeline;

[0020] The fixing device is installed on the outside of the flange assembly, and the flange assembly can be fastened on the outside of the conveying pipeline;

[0021] The conveying pipeline is spliced through the flange assembly, and the conveying of concrete is completed through the conveying pipeline.

[0022] The application has the advantages and positive effects that: due to the above technical scheme, the embodiment of the application realizes light self-weight, low cost, convenient installation, disassembly and cleaning, convenient carrying and easy storage, flexible material can be inserted in the gap between trees; the inner wall of the pipeline lining is smooth and not easy to bond with concrete, and the phenomenon of pipe blockage and pipe blockage does not occur during concrete pouring; the polyester filament material of the pipeline outer lining can improve the wear resistance and scratch resistance of the conveying pipeline.

[0023] In a conveying environment with high drop from top to bottom, the soft pipe flat body lining of the embodiment of the application is made of rubber material, which is automatically and gradually expanded when a certain amount of concrete enters the soft pipe lining of the pipeline due to the self-weight extrusion of the concrete, and the concrete slowly flows down from the expanded flat body soft pipe lining by its own weight; after the concrete flows, the flat body soft pipe lining returns to its original state, and the whole flow process of the concrete is in a constrained state, without divergence and free fall state, and segregation does not occur.

[0024] In a horizontal and upward conveying environment, the soft pipe outer lining of the embodiment of the application has good pressure bearing capacity, and can constrain the expansion of the soft pipe lining, and the connection of the pipeline and the ground pump can realize long-distance conveying of concrete. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a side view structural schematic diagram of the embodiment of the application;

[0026] Figure 2 is an exploded structural schematic diagram of the embodiment of the application;

[0027] Figure 3 is a front view structural schematic diagram of the embodiment of the application;

[0028] Figure 4 is a side view structural schematic diagram of the embodiment of the application;

[0029] Figure 5 is the initial state diagram of pouring concrete from top to bottom of the embodiment of the present application;

[0030] Figure 6 is the state diagram of the concrete falling from the upper section of the delivery conduit to the lower section of the delivery conduit of the embodiment of the present application;

[0031] Figure 7 is the state diagram of the concrete completely flowing out of the upper section of the delivery conduit of the embodiment of the present application;

[0032] Figure 8 is the state diagram of continuously pouring concrete from top to bottom of the embodiment of the present application;

[0033] Figure 9 is the initial state diagram of horizontally pouring concrete by the connected pump of the embodiment of the present application;

[0034] Figure 10 is the initial state diagram of pouring concrete from bottom to top by the connected pump of the embodiment of the present application;

[0035] Figure 11 is the state diagram of continuously pouring concrete horizontally by the connected pump of the embodiment of the present application;

[0036] Figure 12 is the state diagram of continuously pouring concrete from bottom to top by the connected pump of the embodiment of the present application;

[0037] In the figure:

[0038] 1, pipe outer lining 2, pipe inner lining 3, flange assembly

[0039] 4, pipe outer lining turnup 5, pipe inner lining turnup 6, fixing bolt

[0040] 7, rubber gasket 8, concrete 9, upper flange

[0041] 10, middle flange 11, lower flange 12, bolt hole DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the present application more clear and obvious, the present application is further described in detail below in combination with specific embodiments and with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application. In addition, in the following description, the description of the technology of the known structure is omitted to avoid unnecessary confusion of the concept of the present application.

[0043] The embodiments of the present application are described below in combination with the drawings.

[0044] In the description of the embodiments of the present application, it should be understood that the terms "top", "bottom", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "arranged", "connected" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] As Figures 1-4 The structural schematic diagram of an embodiment of the present application is shown, which specifically shows the structure of the embodiment. The present application relates to a concrete conveying device for complex terrain in mountainous areas and an application method. The present application comprises at least two flexible pipe units connected in an up-down manner. Each flexible pipe unit comprises a hose outer liner 1, a hose inner liner 2 and a flange assembly 3. The hose outer liner 1 is a cylindrical structure made of polyester filament material, and the two ends thereof are provided with annular flanges which are outwardly folded by a certain width. The hose inner liner 2 is made of flexible rubber material, and the two ends thereof are circular and the middle part thereof is flat. The two symmetrical inner walls thereof are in close contact with each other, and the two ends thereof are provided with annular flanges which are outwardly folded by a certain width. The flange assembly 3 comprises an upper flange 9, a middle flange 10 and a lower flange 11. The upper flange 9 is pressed on the top surface of the hose inner liner flange 5. The middle flange 10 is sleeved on the hose inner liner 2 and tightly contacts the lower side of the hose inner liner flange 5 and the upper side of the hose outer liner flange 4. The lower flange 11 is sleeved on the hose outer liner 1 and tightly contacts the bottom surface of the hose outer liner flange 4. The upper flange 9, the middle flange 10 and the lower flange 11 are connected by bolts 6 and the flanges are clamped and fixed.

[0046] Preferably, the hose outer liner is made of 2-4 mm thick polyester filament material. The hose inner liner is integrally made of 2-4 mm thick flexible rubber. The width of the flanges at the two ends of the hose can be set to 70 mm, which is convenient for fixing with the flange assembly. The length of each conveying flexible pipe can be set to 1 m, 2 m, 5 m or 10 m according to the site conditions. The diameter of the flexible pipe is set to 150-250 mm.

[0047] Preferably, the upper flange 9, the middle flange 10 and the lower flange 11 are all made of 2-4 mm thick steel plates, and the size thereof is consistent with the diameter of the flexible pipe and the size of the flange.

[0048] Preferably, the rubber gasket 7 can be made of 3-5 mm thick rubber, and has the same shape and size as the flange assembly 3. In the embodiment of the present application, for the convenience of fixing the hose inner liner 2, the hose outer liner 1 and the flange assembly 3, and connecting the two flexible pipe units, eight bolt holes 12 are provided at equal intervals around the upper flange 9, the middle flange 10, the lower flange 11, the inner liner flange 5, the outer liner flange 4 and the rubber gasket 7 respectively, four of which are used for fixing the upper flange 9, the middle flange 10, the lower flange 11, the outer liner flange 4 and the inner liner flange 5, and the other four are reserved for bolt fixing when the flexible pipe units are connected, and the two types of bolt holes are used alternately.

[0049] In the embodiment of the present application, when the concrete is poured from top to bottom, a proper number of flexible pipe units are connected according to the height of the pouring drop. A sling is wound around the bottom of the flange assembly 3 of the uppermost flexible pipe unit, and the sling is connected with a concrete hopper. The pouring process is as follows:

[0050] As shown in Figure 5 , Figure 6 , when the pouring is initiated, the concrete 8 enters the hose inner liner 2 of the uppermost flexible pipe unit, and under the action of gravity, slides down and gradually expands the flat body part of the hose inner liner 2, and then falls into the hose inner liner 2 below. The flat body part can constrain and slow down the falling speed of the concrete, preventing segregation. The concrete in the hose inner liner 2 above falls in the same way in the hose inner liner 2 below, and so on, until it reaches the pouring position.

[0051] As shown in Figure 7 , when the concrete in the hose inner liner 2 above is completely discharged, the hose inner liner 2 restores to its original shape by elasticity. When the subsequent concrete enters the hose inner liner 2, the falling process of the concrete is the same as that in the initial pouring.

[0052] As shown in Figure 8 , when a large amount of concrete is continuously poured, the flat body part of each hose inner liner 2 has a converging and retarding effect on the concrete, and the whole flow process of the concrete is in a constrained state, without divergence or free fall, which can achieve an ideal anti-segregation effect.

[0053] In the embodiment of the present application, when the concrete is horizontally or upwardly transported, a proper number of flexible pipes are connected according to the distance, and one end of each flexible pipe is connected with a ground pump. The pouring process is as follows:

[0054] As shown in Figure 9 , Figure 10 , Figure 11 , Figure 12As shown, the concrete 8 gradually spreads out to the four sides when the flat body part is gradually opened up as the concrete enters the hose lining 2 under pumping pressure, and expands to a certain extent before stopping expansion under the constraint of the hose outer lining 1, generating forward or upward pressure to deliver the concrete to the pouring position.

[0055] The embodiment of the present application has the advantages of light self-weight, low cost, convenient installation, disassembly, cleaning, easy carrying and storage, flexible material capable of being inserted into the gap between trees, smooth inner wall of the pipe lining not easy to bond with concrete, no pipe blocking or pipe blocking phenomenon during concrete pouring, and polyester filament material of the pipe outer lining capable of improving the wear resistance and scratch resistance of the delivery pipe.

[0056] In the delivery environment with high drop from top to bottom, the hose flat body lining of the embodiment of the present application is made of rubber material, which is automatically and gradually opened up by the self-weight of the concrete under a certain amount of concrete entering the pipe lining, and the concrete slowly flows down from the opened flat body hose lining by self-weight; after the concrete flows, the flat body hose lining returns to the original state, and the whole flow process of the concrete is in a constrained state without divergence and free fall state, and segregation does not occur.

[0057] In the horizontal and downward delivery environment, the hose outer lining of the embodiment of the present application has good pressure resistance of the polyester filament material, which can constrain the expansion of the hose lining, and the connection of the pipe and the ground pump can realize long-distance delivery of concrete.

[0058] The embodiments of the present application are described in detail above, but the content described is only the preferred embodiments of the present application, and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made within the scope of the present application should still belong to the scope of the present application.

Claims

1. A concrete conveying device for complex terrain in mountainous area, comprising a conveying pipe, a flange assembly, a fixing device and a leakage-proof layer, characterized in that: the conveying pipe is provided with the flange assembly at both ends, the leakage-proof layer is arranged at the joint of the conveying pipe and the flange assembly, and the fixing device is arranged outside the flange assembly to fasten the flange assembly outside the conveying pipe; the conveying pipe is provided with a pipe outer lining and a pipe inner lining, the pipe inner lining is arranged inside the conveying pipe and closely adheres to the pipe outer lining, the pipe outer lining can improve the bearing strength of the conveying pipe, and the pipe inner lining can reduce the friction of the conveying pipe caused by the transportation of concrete; the conveying pipe is provided with a pipe outer lining turnup and a pipe inner lining turnup, the pipe outer lining turnup is used for connecting the flange assembly, and the pipe inner lining turnup is used for the concrete entering the pipe inner lining; the conveying pipe is a flexible conveying pipe; the pipe inner lining is made of flexible rubber material, has a circular shape at both ends and a flat body in the middle, and has two symmetrical inner walls that are in close contact with each other and are provided with annular turnups that are outwardly folded by a certain width at both ends; the conveying pipe comprises a first conveying pipe and a second conveying pipe, and the first conveying pipe and the second conveying pipe are connected through the flange assembly; the flange assembly comprises a first flange, a second flange and a third flange, the first flange is arranged at the top of the pipe inner lining turnup, the second flange is arranged outside the pipe inner lining, and the third flange is arranged at the bottom surface of the pipe outer lining turnup; the flange assembly is provided with bolt holes at the ring body, and the fixing device can be arranged in the bolt holes; the fixing device is provided with fixing bolts, and the fixing bolts can be arranged in the bolt holes to fix the flange assembly; the leakage-proof layer is provided with rubber gaskets, and the rubber gaskets are arranged at the joint of the flange assembly and the conveying pipe to prevent the leakage of concrete; the method comprises the following steps: installing the flange assembly outside the conveying pipe, installing the leakage-proof layer at the joint of the flange assembly and the conveying pipe, preventing the flange assembly from sliding off the conveying pipe, and preventing concrete from leaking from the conveying pipe; the fixing device is installed outside the flange assembly to fasten the flange assembly outside the conveying pipe; the conveying pipe is spliced through the flange assembly, and the conveying of concrete is completed through the conveying pipe. ​ ​ ​ ​ ​ 2. The concrete delivery apparatus for mountainous complex topography according to claim 1, characterized by: ​ 3. The concrete delivery apparatus for mountainous terrain according to claim 1, wherein: ​ 4. The concrete delivery apparatus for mountainous complex topography according to claim 3, characterized in that: ​ 5. The concrete delivery apparatus for mountainous complex topography according to claim 4, characterized in that: ​ 6. The concrete delivery apparatus for mountainous terrain according to claim 1, wherein: ​ 7. A method of using the concrete delivery device for mountainous complex terrain according to claim 1, wherein, ​ ​ ​ ​

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