A flow state solidified soil pumping and shunting device

Abstract

The application discloses a flow state solidified soil pumping and shunting device, and belongs to the technical field of building engineering. The flow state solidified soil pumping and shunting device comprises an input port pump pipe, a spherical shunt (2), a plurality of groups of output port pump pipes (3) and an outlet opening and closing valve (4). The input port pump pipe (1) is sealingly connected with a pumping main pipe and the spherical shunt (2). The spherical shunt (2) is a high-strength rubber material storage buffer structure. The output port pump pipe (3) is provided with a steel outlet and can be lengthened through a conversion head. The outlet opening and closing valve (4) independently controls the on-off and flow of each discharge port. The application realizes buffer and pressure reduction of the flow state solidified soil and uniform shunting of multiple outlets, can balance backfill pressure, flexibly adjusts the discharge angle and distance, significantly reduces the damage risk of existing products during construction, improves the construction efficiency and quality, and is suitable for flow state solidified soil pumping construction scenes such as backfilling of pipeline pits in building engineering.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, specifically to a fluidized solidified soil pumping and diversion device and its usage method, which is applicable to various fluidized solidified soil pumping construction scenarios such as pipeline trench backfilling and foundation pit backfilling in building engineering. Background Technology

[0002] In the field of building construction, pumped concrete and fluidized solidified soil construction methods have become widely used due to their advantages such as long conveying distance, large conveying height, labor saving, and convenient construction, especially in the backfilling of pipeline trenches and foundation pits. However, existing fluidized solidified soil pumping construction technology still has many shortcomings that urgently need to be addressed: 1. The pumping pressure is high, and the fluidized solidified soil has a strong impact force at the outlet end, which can easily cause collision and erosion damage to existing finished products such as pipelines and structures in the backfill construction area, affecting the quality of the finished project. 2. Traditional pumping discharges material from a single outlet. If backfilling is done gradually on one side during pipeline trenching, it will lead to uneven soil pressure on both sides of the trench, which may cause pipeline displacement, structural deformation or even damage, increasing construction and repair costs. 3. The pump outlet direction needs to be manually controlled by the operator, which is not only difficult to operate and labor-intensive, but also has low precision due to low accuracy, which can easily lead to deviation in the discharge position and affect the uniformity of backfilling. 4. The existing pumping pipe has a fixed length structure, which cannot flexibly adjust the discharge distance and angle according to construction needs, resulting in poor adaptability.

[0003] While existing technologies include related pumping and slurry diversion devices, such as the "Multi-pipeline Pumping Device and Construction Method" in patent number CN120906123A, these devices are mainly used for pumping slurry in underwater pile foundation scour pits. They inject fluidized solidified soil into the scour pit through telescopic pumping steel pipes, solving the problems of low pumping efficiency and uneven slurry distribution underwater. The device structure consists of a self-sinking base with a telescopic steel pipe, which is suitable for complex underwater environments. However, it does not provide solutions to the core problems of high pumping pressure, impact damage, and uneven pressure in backfilling of pipeline pits in ground construction projects. Furthermore, its complex structure and limited applicability make it unsuitable for direct application in ground fluidized solidified soil backfilling construction, and it cannot meet the construction requirements of buffering and decompression, or flexibly adjusting the discharge angle and distance.

[0004] Therefore, there is an urgent need for a fluidized solidified soil pumping device that is suitable for ground construction projects, can achieve buffering and pressure reduction, and can achieve uniform diversion through multiple outlets, in order to solve the above-mentioned defects of existing construction technologies. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by providing a pumping and diversion device for fluidized solidified soil and its usage method. The core objective of this invention is: 1. To achieve buffering and pressure reduction during the pumping process of fluidized solidified soil, effectively reducing the pressure and impact force at the discharge port, and fundamentally avoiding damage to existing pipelines, structures and other finished products in the backfill area; 2. To achieve simultaneous and uniform distribution of fluidized solidified soil through multiple outlets, meet the synchronous backfilling requirements on both sides of the pipeline trench, balance backfilling pressure, and prevent pipeline displacement and structural damage caused by uneven pressure. 3. Simplify construction operations, realize independent on / off and flow regulation of each discharge port, and flexibly adjust the discharge angle and conveying distance, reduce the labor intensity of operators and improve construction accuracy; 4. The modular and easily disassembled device structure is designed to adapt to the complex construction environment of building construction sites. The components are wear-resistant, durable, and reusable, reducing construction costs.

[0006] To achieve the above-mentioned objectives, the present invention provides a pumping and diversion device for fluidized solidified soil, which adopts a structural design of "single inlet - buffer diversion - multiple outlet independent control". Specifically, it includes an inlet pump pipe, a spherical diverter, several sets of outlet pump pipes, and outlet opening and closing valves. The components are modularly and sealedly connected to form an integrated pumping and diversion structure. The specific technical features are as follows: Inlet pump pipe: A 155mm diameter rubber pipe is used, with sealing joints at both ends. One end is sealed to the main pumping pipe in the construction, and the other end is sealed to the inlet end of the spherical distributor. It serves as the input channel for fluidized solidified soil. The rubber material has good flexibility and is suitable for the pipeline layout requirements of on-site construction. Spherical diverter: This is the core diversion and buffer component of the present invention. It is made of high-strength rubber material with a diameter of 500mm and forms a closed material storage buffer chamber inside. It can buffer, decelerate and equalize the pressure of the input high-pressure fluidized solidified soil. At the same time, it is evenly arranged with multiple outlet ends around its circumference to realize the uniform diversion of fluidized solidified soil to each output pump pipe. The high-strength rubber material takes into account both structural strength and impact resistance, and is suitable for the use environment on the construction site. Output pump pipe: Each set uses a 110mm diameter rubber hose. One end is sealed to the outlet end of the spherical distributor through a sealing joint, and the other end is a steel outlet. The steel outlet is made of wear-resistant and corrosion-resistant steel with a wall thickness of not less than 10mm to improve the structural strength of the discharge end and prevent wear and damage caused by long-term construction. At the same time, the output pump pipe can be arbitrarily extended through the adapter to realize flexible adjustment of the discharge angle and conveying distance to adapt to the location requirements of different backfilling construction. Outlet opening and closing valves: These are installed on the pipeline of each group of output pump pipes. Manual butterfly valves are preferred, which can independently control the opening and closing of each output port and realize stepless adjustment of the discharge flow rate. Operators can flexibly select the number of discharge ports and set the discharge flow rate according to construction needs.

[0007] The method of using the fluidized solidified soil pumping and diversion device of the present invention includes the following steps: S1. Device connection: Connect the end of the inlet pump pipe away from the spherical distributor to the main pumping pipe for construction through a sealing joint. Check the sealing of the connection between the inlet pump pipe, the outlet pump pipe and the spherical distributor one by one to ensure that there is no risk of material leakage. In the initial state, close all outlet valves. S2. Discharge Arrangement: Based on the actual needs of pipeline trench backfilling construction, each outlet pump pipe is arranged at a designated location in the backfilling area. It is preferable to arrange the outlet pump pipes symmetrically on both sides of the pipeline trench and adjust the discharge angle so that the steel outlet faces the backfilling area. If the construction location is far away, the outlet pump pipe is extended by using a converter to meet the conveying distance requirements. S3. Parameter adjustment: Open the corresponding outlet valve, adjust the valve opening according to the backfilling speed requirements of the construction, set the discharge flow rate of each outlet, and ensure that the flow rate of each opened outlet is uniform. S4. Pumping Construction: Start the main pumping pipe. Under the action of pumping pressure, the fluidized solidified soil enters the storage buffer chamber of the spherical distributor through the inlet pump pipe. After buffering, depressurization, and pressure equalization, it is evenly distributed to each open outlet pump pipe and finally transported to the backfilling area through the steel outlet. During the construction process, the operator adjusts the opening of each valve in real time according to the backfilling progress to maintain the backfilling speed and pressure balance on both sides and around the pipeline trench until the backfilling construction is completed. S5. Equipment Dismantling: After construction is completed, first shut off the main pumping pipe. After the residual fluidized solidified soil in the pipe is completely discharged, close all outlet valves. Sequentially disconnect the connection between the output pump pipe, the input pump pipe and the spherical distributor. Clean and inspect each component, replace worn or damaged components in a timely manner, and store them properly for future reuse.

[0008] Compared with the prior art, the present invention has the following significant technical advantages and positive effects: 1. Significant pressure reduction and impact prevention effect: The storage buffer chamber of the spherical distributor buffers, equalizes, and decelerates the high-pressure fluidized solidified soil, effectively dispersing and reducing the pumping pressure and impact force at the outlet. Actual construction verification shows that the outlet pressure can be reduced by more than 60%, fundamentally preventing the fluidized solidified soil from causing erosion and collision damage to existing structures, pipelines, and other finished products in the backfill area, thus protecting the integrity of the finished project. 2. Balanced backfill pressure to prevent pipeline displacement: The structure design with multiple outlets and uniform flow distribution is adopted, and the output pump pipes can be symmetrically arranged on both sides of the pipeline pit to achieve synchronous and uniform backfilling on both sides of the pit. This effectively balances the soil pressure in the backfilling area, completely solves the problem of uneven pressure caused by unilateral backfilling, prevents pipeline displacement, structural deformation or damage, and improves the structural stability of backfilling construction. 3. Convenient construction operation and improved construction efficiency: Each output port is equipped with an independent outlet opening and closing valve, which can flexibly select the number of outlets and set the discharge flow rate according to construction needs, eliminating the need for manual hand control of the pump outlet direction; at the same time, the output pump pipe can be extended by the adapter to achieve flexible adjustment of the discharge angle and conveying distance, reducing the workload of operators and improving construction efficiency by more than 40% compared with traditional pumping methods. 4. Reasonable structural design and strong adaptability: The components of the device adopt modular sealed connection, which is convenient for disassembly, assembly and maintenance; the core components are made of high-strength rubber, wear-resistant steel and other materials, which take into account both flexibility and structural strength, and adapt to the complex construction environment of the construction site; and all components can be reused, which effectively reduces the cost of construction materials. 5. Scientific application method and high construction precision: The application method of this invention follows the principle of "connect first - then arrange - then adjust - precise construction". Through steps such as symmetrical arrangement, stepless flow adjustment and real-time pressure adjustment, the uniformity and precision of backfilling construction are guaranteed, and the overall construction quality of the project is improved. Attached Figure Description

[0009] Figure 1 This is a cross-sectional view of the fluidized solidified soil pumping and diversion device of the present invention; Figure 2 This is a front view of the overall flowable solidified soil pumping and diversion device of the present invention: Figure 3 This is a schematic diagram of the opening and closing valve structure of the outlet pipe of the fluidized solidified soil pump of the present invention.

[0010] In the diagram: 1-Inlet pump pipe, 2-Spherical distributor, 3-Outlet pump pipe, 4-Outlet on / off valve. Detailed Implementation

[0011] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0012] Example 1 Please see now Figure 1-3 This embodiment is applied to the backfilling construction of underground pipeline trenches in building engineering. The trench is 2.5m wide and 80m long, and a municipal water supply network is laid inside the trench. The backfilling construction has high requirements for pressure control and impact resistance. The fluidized solidified soil pumping and diversion device of this invention is used for construction. The device configuration is as follows: The device configuration includes one inlet pump pipe 1, one spherical distributor 2, four sets of outlet pump pipes 3, and four outlet opening and closing valves 4.

[0013] Inlet pump pipe 1: 155mm diameter rubber hose, 2m in length, with stainless steel sealing joints at both ends; Spherical Diverter 2: Made of high-strength rubber with a diameter of 500mm and a wall thickness of 20mm, with an internal material storage buffer chamber volume of approximately 0.065m³, and four outlet ends evenly arranged circumferentially; Output pump pipe 3: 110mm diameter rubber hose, 3m in length, with a sealing joint at one end and a steel outlet (wear-resistant steel material, 10mm wall thickness) at the other end; the matching adapter is a universal threaded adapter. Outlet opening and closing valve 4: Manual butterfly valve, suitable for 110mm pipe diameter, can achieve stepless adjustment of 0-100% flow rate.

[0014] Example 2 The fluidized solidified soil pumping and diversion device of the present invention is applied to the backfilling construction process of fluidized solidified soil in underground pipeline trenches of building engineering: S1. Device connection: Connect the pumping main pipe of the inlet pump pipe 1 to the 155mm pumping main pipe for construction in a sealed connection. Connect the four sets of outlet pump pipes 3 to the four outlet ends of the ball distributor 2 one by one through the sealing joints. Check the sealing of all connection parts one by one to ensure that there is no leakage. Initially close all four manual butterfly valves. S2. Discharge Arrangement: Arrange four sets of output pump pipes 3 symmetrically on both sides of the pipeline pit, with two sets on each side. Adjust the discharge angle of the steel outlet so that the discharge direction is at a 45° angle to the pit backfill surface. The conveying distance needs to be increased at the construction position at the far end of the pit. Use a converter to extend the two sets of output pump pipes 3 at the far end to 5m. S3. Parameter adjustment: Simultaneously open four manual butterfly valves, adjust the opening of each valve to 80%, set the single outlet discharge flow rate to about 0.2 m³ / min, and the total discharge flow rate to about 0.8 m³ / min, to match the on-site backfilling construction speed. S4. Pumping Construction: Start the main pumping pipe. The fluidized solidified soil enters the storage buffer chamber of the spherical distributor 2 through the inlet pump pipe 1. After buffering and depressurization, it is evenly distributed to the four sets of outlet pump pipes 3 and simultaneously transported to the backfilling areas on both sides of the pit. During the construction process, a dedicated person is assigned to observe the backfilling progress in real time. According to the backfilling height on both sides of the pit, the valve opening is finely adjusted to maintain the backfilling pressure on both sides. No pipeline displacement or impact damage occurred throughout the process. S5. Equipment Dismantling: After the 80m pipeline trench backfilling is completed, first shut off the main pumping pipe. After the residual fluidized solidified soil in the pipe is completely discharged, close the four manual butterfly valves and dismantle the output pump pipe 3 and the input pump pipe 1 in sequence. Rinse the spherical distributor 2, valve 4, steel outlet and other components with clean water. After inspection, it was found that there was no wear or damage to the components and the sealing joints were in good condition. After all the components were sorted out, they were put into storage for reuse in subsequent construction.

[0015] This invention has substantial features and significant technological advancements. After the fluidized solidified soil of this invention is buffered and depressurized by the device of this invention, the impact force at the discharge port is significantly reduced, and no impact damage is caused to the water supply network in the pit. Backfilling is carried out simultaneously on both sides of the pit, with balanced pressure and no displacement or deformation of the pipeline network. During the construction process, there is no need for manual control of the pump outlet direction. Only one operator can complete the valve adjustment, progress observation and other tasks. The construction efficiency is increased by 45% compared with the traditional single-outlet pumping method. The backfilling construction has good uniformity. After testing, the compaction degree and flatness of the backfill area meet the requirements of municipal engineering construction specifications. The device and method of use of the present invention are not only applicable to the above-mentioned underground pipeline trench backfilling construction, but also can adjust the number of sets of output pump pipe 3 (such as 2 sets or 6 sets) according to the actual needs of construction projects to adapt to various fluid solidified soil pumping construction scenarios such as foundation pit backfilling and roadbed backfilling; at the same time, the arrangement angle of input pump pipe 1 and output pump pipe 3 can be flexibly adjusted according to the space limitations of the construction site, and extended to different lengths by conversion heads to adapt to different construction distance requirements, all of which can achieve the technical effects of buffering pressure reduction and balancing backfilling pressure.

Claims

1. A pumping and diversion device for fluidized solidified soil, characterized in that, The system includes an inlet pump pipe (1) and a spherical diverter (2) connected in sequence, and several sets of outlet pump pipes (3) connected to the spherical diverter (2). Each set of outlet pump pipes (3) is equipped with an outlet opening and closing valve (4). The inlet pump pipe (1) is a 155mm diameter rubber pipe, one end of which is used for a sealed connection with the main pumping pipe for construction, and the other end is sealed to the inlet end of the spherical diverter (2). The spherical diverter (2) is a 500mm diameter high-strength rubber material. The structure has an internal storage buffer chamber for buffering and depressurizing the input fluidized solidified soil and achieving uniform flow distribution; the output pump pipe (3) is a 110mm diameter rubber hose, one end of which is sealed to the outlet end of the spherical diverter (2), and the other end is a steel outlet. The output pump pipe (3) is extended by a converter to adjust the conveying angle and conveying distance; the outlet opening and closing valve (4) is used to independently control the opening, closing and discharge flow of the corresponding output pump pipe (3).

2. The fluidized solidified soil pumping and diversion device according to claim 1, characterized in that, The spherical diverter (2) has multiple outlets evenly arranged around its circumference. The number of outlets matches the number of sets of output pump pipes (3) to ensure that the fluidized solidified soil is evenly distributed to each output pump pipe (3).

3. The fluidized solidified soil pumping and diversion device according to claim 1, characterized in that, Both ends of the inlet pump pipe (1) are equipped with sealing joints, and the connection end between the outlet pump pipe (3) and the spherical distributor (2) is also equipped with a sealing joint to ensure the sealing of each connection part and prevent leakage of the fluidized solidified soil.

4. The fluidized solidified soil pumping and diversion device according to claim 1, characterized in that, The steel outlet is made of wear-resistant and corrosion-resistant steel with a wall thickness of not less than 10mm, which improves the structural strength and service life of the discharge end.

5. The fluidized solidified soil pumping and diversion device according to claim 1, characterized in that, The outlet opening and closing valve (4) is a manual butterfly valve, which can realize stepless adjustment of the discharge flow of the corresponding output pump pipe (3) to adapt to the flow requirements of different backfilling construction.

6. The method of using the fluidized solidified soil pumping and diversion device according to any one of claims 1-5, characterized in that, Includes the following steps: S1. Device connection: Connect the end of the inlet pump pipe (1) away from the ball splitter (2) to the main pumping pipe for construction in a sealed manner. Check the sealing of each component connection to ensure there is no risk of material leakage. In the initial state, close all outlet valves (4). S2. Discharge Arrangement: According to the actual needs of pipeline trench backfilling construction, each outlet pump pipe (3) is arranged in the designated position of the backfilling area, and the discharge angle is adjusted. If the conveying distance needs to be increased, the outlet pump pipe (3) is extended by using a converter. S3, Parameter Adjustment: Open the corresponding outlet valve (4), adjust the valve opening according to construction requirements, and set the discharge flow rate; S4. Pumping construction: Start the main pumping pipe. The fluidized solidified soil enters the spherical distributor (2) through the inlet pump pipe (1) for buffering and pressure reduction. Then, it is evenly transported to the backfill area through the open outlet pump pipe (3). During the construction process, the valve opening is adjusted in real time according to the backfilling progress to maintain the backfilling pressure balance. S5. Device dismantling: After the construction is completed, first shut off the main pumping pipe. After the residual fluid solidified soil in the pipe is discharged, close all outlet valves (5), dismantle all parts of the device, clean and inspect them, and store them properly.

7. The method of use according to claim 6, characterized in that, In step S2, the output pump pipe (3) is symmetrically arranged on both sides of the pipeline pit to ensure synchronous backfilling on both sides of the pit and balance the backfilling pressure on both sides.

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