A multifunctional device and construction method for desert channel aeolian sand construction

Abstract

The present invention relates to the technical field of water conservancy engineering, and specifically provides a multifunctional device and construction method for the construction of aeolian sand in desert channels, including a compaction bottom plate, a compaction side plate and an end plugging plate, the bottom edges of the two compaction side plates are rotatably connected to the two side edges of the compaction bottom plate through a rotating shaft, and are used to excavate channel cross sections with different slopes, the bottoms of the two end plugging plates are detachably connected to the compaction bottom plate, the two sides of each end plugging plate are detachably connected to the two compaction side plates, the compaction bottom plate, the two compaction side plates and the two end plugging plates are mutually connected to form an inner cavity, the inner cavity is used to hold water, the compaction bottom plate and the compaction side plates are both provided with outer water permeable holes, and a standard connector for connecting an excavator is fixed on the plugging plate. The present invention can simplify the process of water injection, excavation and compaction in the construction process of the aeolian sand anti-freezing heaving layer in the desert channel, adapt to channel sections with different slope ratios, and improve the construction efficiency of the aeolian sand anti-freezing heaving layer.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy projects, and in particular to a multifunctional device and a construction method for desert channel aeolian sand construction. Background Art

[0002] my country is a country with many deserts. There are large areas of deserts in the western part of my country. In the process of building projects in the northwest region, using aeolian sand as engineering materials is a new challenge faced by engineering builders. Aeolian sand refers to sand layers blown and deposited by the wind. It is mostly found in deserts and Gobi. Its particle size is mainly distributed between 0.074 and 0.250 mm, with a content of more than 90%. There are very few particles larger than 0.25 mm, only 0.1%, and particles smaller than 0.074 mm are less than 9%, and the unevenness coefficient is about 1.35.

[0003] In recent years, with the continuous advancement of irrigation area reconstruction technology, aeolian sand has become a common anti-frost heave material for irrigation channels in the Northwest region due to its large reserves, special physical properties and low cost.

[0004] Since aeolian sand is a non-cohesive soil with poor cohesion, it is difficult to maintain its shape under dry conditions. Therefore, the traditional construction method often uses the "water pressure method", which is to cover the interior of the excavated channel with aeolian sand and then fill the channel with water. The water slowly penetrates and soaks the aeolian sand to make it moist. Then, an excavator is used in combination with manual trimming to form a standard channel section.

[0005] When the traditional "water pressure method" is used for construction, after the aeolian sand is soaked in water, it is necessary to use excavators and manual slope trimming. The process is cumbersome and the main problems caused by this are: 1. Water stays in the aeolian sand for too long. The aeolian sand has strong permeability. The water will seep out of the aeolian sand layer in a short period of time, resulting in a low moisture content of the aeolian sand and difficulty in forming; 2. The shape of the channel needs to be trimmed manually. In order to ensure the accuracy of the channel shape and size, the trimming process often requires combining laying out the lines, beating and compacting with shovels, etc., which requires a lot of manpower and material resources; 3. The compaction degree of the channel bottom and channel slope cannot be guaranteed by manual compaction. Summary of the invention

[0006] The technical problem to be solved by the present invention is: in order to solve the problem that aeolian sand has low moisture content and is difficult to excavate and shape, the present invention provides a multifunctional device for constructing an anti-freezing heave layer of aeolian sand in channels in desert areas to solve the above problem.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a multifunctional device for the construction of aeolian sand in desert channels, comprising a compaction bottom plate, two compaction side plates and two end sealing plates, the bottom edges of the two compaction side plates are rotatably connected to the two side edges of the compaction bottom plate through a rotating shaft, and are used to excavate channel cross-sections with different slope gradients, the bottoms of the two end sealing plates are detachably connected to the compaction bottom plate, and the two sides of each end sealing plate are detachably connected to the two compaction side plates, the compaction bottom plate, the two compaction side plates and the two end sealing plates are interconnected to form an inner cavity, and the inner cavity is used to hold water, the compaction bottom plate and the compaction side plates are both provided with outer water permeable holes, and the end sealing plates are fixed with standard connectors for connecting to excavators.

[0008] Preferably, it further comprises a plurality of water-blocking baffles, which are spliced ​​and connected to the inner side of the compacted side plate and the compacted bottom plate, and inner water-permeable holes are formed on the water-blocking baffles, which can be connected to the outer water-permeable holes.

[0009] Preferably, it further comprises a telescopic connecting rod, on which a locking device is installed, and both ends of the telescopic connecting rod are telescopic, and both ends of the telescopic connecting rod are rotatably connected to the upper edges of the two compacting side plates respectively.

[0010] Preferably, fine-tuning grooves are provided at the boundaries of the compacted bottom plate, the compacted side plate and the water-blocking baffle plate, and the water-blocking baffle plate is connected to the compacted bottom plate and the compacted side plate in a socket connection via the fine-tuning grooves.

[0011] Preferably, the outer water-permeable holes and the inner water-permeable holes are distributed in a plum blossom shape, and when the outer water-permeable holes are in a closed state, the inner water-permeable holes and the outer water-permeable holes are staggered with each other.

[0012] Preferably, the diameters of the outer water-permeable holes and the inner water-permeable holes are 5 mm to 30 mm.

[0013] Preferably, a reinforcing connecting rod is fixed between the two end sealing plates.

[0014] Preferably, the compacted bottom plate and the compacted side plate are made of C-grade carbon structural steel with a strength not less than Q235 and a thickness ≥10 mm, and the end sealing plate is made of stainless steel and has a thickness ≥4 mm.

[0015] Preferably, the water-blocking baffle is made of C-grade carbon structural steel with a strength not less than Q235 and a thickness ≥5 mm.

[0016] A construction method of the multifunctional device for desert channel aeolian sand construction as described above comprises the following steps:

[0017] S1: According to the channel cross section, adjust the angles of the compaction bottom plate and the compaction side plate, and connect them with a retractable connecting rod. After the connection is completed, lock the retractable connecting rod through a locking device, adjust the position of the water-blocking baffle according to the required water permeability, assemble two end blocking plates, and complete the assembly;

[0018] S2: Use standard connectors to connect the multifunctional device used for the construction of wind-blown sand anti-freezing layer in desert channels to common excavators on the market;

[0019] S3: The excavated channel is filled with aeolian sand, the excavator is driven to the designated position, the water permeability is adjusted using the fine-tuning groove, and then the inner cavity is filled with water. While the inner cavity seeps water into the aeolian sand through the outer and inner water permeable holes, the aeolian sand is excavated into a standard section using the excavator, and the section is compacted using the deadweight of the inner cavity wall and water, thus achieving excavation, water injection and compaction at the same time.

[0020] The beneficial effects of the present invention are: firstly, the three steps of "immersion-excavation-manual compaction" of the traditional "water pressure method" construction are integrated into one device and one step, which ensures that the aeolian sand is constructed under a state of high moisture content, improves work efficiency, and ensures cross-sectional accuracy; secondly, the use of a retractable connecting rod structure can adapt to a variety of channel cross-sectional sizes and has strong versatility; thirdly, the channel cross-section is compacted mechanically, the compaction effect is greatly improved, the project quality is improved, and manpower and material resources are saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a structural schematic diagram of the optimal embodiment of the multifunctional device for desert channel aeolian sand construction of the present invention;

[0023] Figure 2 It is a structural schematic diagram of a retractable connecting rod and a locking device of a multifunctional device for desert channel aeolian sand construction of the present invention;

[0024] Figure 3 It is a schematic diagram of the inner water permeable hole of the water blocking baffle of the multifunctional device for desert channel aeolian sand construction of the present invention being opened;

[0025] Figure 4 It is a schematic diagram of the closed state of the inner water permeable hole of the water blocking baffle of the multifunctional device for the construction of aeolian sand in desert channels of the present invention;

[0026] Figure 5 It is a structural schematic diagram of an end plugging plate of a multifunctional device for desert channel aeolian sand construction according to the present invention.

[0027] Figure numerals: 1. Compacted bottom plate; 2. Compacted side plate; 3. Water-blocking baffle; 4. End blocking plate; 5. Retractable connecting rod; 6. Reinforced connecting rod; 7. Standard joint; 8. Locking device; 9. Inner water permeable hole; 10. Fine-tuning groove; 11. Rotating shaft; 12. Outer water permeable hole. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] like Figures 1 to 5 As shown, the present invention provides an embodiment of a multifunctional device for desert channel aeolian sand construction, including a compaction bottom plate 1, two compaction side plates 2 and two end sealing plates 4, the bottom edges of the two compaction side plates 2 are rotatably connected to the two side edges of the compaction bottom plate 1 through a rotating shaft 11, and are used for excavating channel cross sections with different slope gradients, the bottoms of the two end sealing plates 4 are detachably connected to the compaction bottom plate 1, and the two sides of each end sealing plate 4 are detachably connected to the two compaction side plates 2, the compaction bottom plate 1, the two compaction side plates 2 and the two end sealing plates 4 are interconnected to form an inner cavity, and the inner cavity is used to hold water, the compaction bottom plate 1 and the compaction side plates 2 are both provided with outer water permeable holes 12, and the end sealing plates 4 are fixed with standard connectors 7 for connecting to an excavator.

[0030] It also includes a telescopic connecting rod 5, on which a locking device 8 is installed. Both ends of the telescopic connecting rod 5 are telescopic, and both ends of the telescopic connecting rod 5 are rotatably connected to the upper edges of the two compacting side plates 2 respectively.

[0031] Before excavating the aeolian sand in the channel, the angle between the compaction bottom plate 1 and the compaction side plate 2 is adjusted according to the parameters of the channel section to make it consistent with the channel cross section. It can adapt to a variety of channel section sizes and has strong versatility. Then, the two end sealing plates 4 are assembled, and the edges of the end sealing plates 4 are fixed to the compaction bottom plate 1 and the compaction side plates 2 by socket connection. The two ends of the telescopic connecting rod 5 are telescopically adjusted to an appropriate length so that the two ends of the telescopic connecting rod are always connected to the upper edges of the two compaction side plates 2. The telescopic connecting rod 5 is locked by the locking device 8 to fix the angle of the compaction side plates 2. Finally, the standard joint 7 is connected to the excavator, and the inner cavity is filled with water. The excavator drives the device as a whole to move along the channel, and the end sealing plates are used. 4 pushes away part of the aeolian sand in the channel, and excavates a standard channel section on the aeolian sand. A reinforcing connecting rod 6 is fixed between the two end plugging plates 4 to improve the connection strength of the end plugging plates 4 and prevent the end plugging plates 4 from deforming and falling off during the excavation process. While excavating, the excavated section is compacted by the deadweight of the device and water. In the process of excavation, the water in the device can penetrate into the aeolian sand through the outer water permeable holes 12 to keep the aeolian sand moist. The channel section is compacted mechanically, and the compaction effect is greatly improved, the project quality is improved, and the compaction guarantee rate of the aeolian sand cushion layer is significantly improved. At the same time, the manual workload is reduced to form a standard channel section. During the excavation process, water can be injected into the inner cavity in time to maintain the water level in the inner cavity.

[0032] It also includes a plurality of water-blocking baffles 3, which are connected to the compacted side plate 2 and the inner side of the compacted bottom plate 1 by sockets, and the water-blocking baffles 3 are provided with inner water-permeable holes 9, which can be connected to the outer water-permeable holes 12.

[0033] The outer water-permeable holes 12 and the inner water-permeable holes 9 are distributed in a plum blossom shape. When the outer water-permeable holes 12 are in a closed state, the inner water-permeable holes 9 and the outer water-permeable holes 12 are staggered with each other.

[0034] Fine-tuning grooves 10 are provided at the boundaries of the compacted bottom plate 1 , the compacted side plate 2 and the water-blocking baffle plate 3 , and the water-blocking baffle plate 3 is connected to the compacted bottom plate 1 and the compacted side plate 2 by means of the fine-tuning grooves 10 .

[0035] When it is necessary to control the moisture content of aeolian sand during excavation, the position of the water-blocking baffle 3 is adjusted according to the actual required amount of water permeability, that is, the position of the water-blocking baffle 3 is adjusted by inserting the fine-tuning groove 10 on the compacted bottom plate 1 and the compacted side plate 2 at different positions of the fine-tuning groove 10, so that the outer water-permeable hole 12 and the inner water-permeable hole 9 are partially or fully connected, so that the water in the inner cavity can smoothly flow from the inner water-permeable hole 9 into the outer water-permeable hole 12 and penetrate into the aeolian sand.

[0036] The diameters of the outer water-permeable holes 12 and the inner water-permeable holes 9 are 5 mm to 30 mm.

[0037] The material of the compacted bottom plate 1 and the compacted side plate 2 is C-grade carbon structural steel with a strength not less than Q235 and a thickness of ≥10mm, and the end blocking plate 4 is made of stainless steel and has a thickness of ≥4mm.

[0038] The material of the water blocking baffle 3 is C-grade carbon structural steel with a strength not less than Q235 and a thickness of ≥5mm.

[0039] A construction method of a multifunctional device for desert channel aeolian sand construction, comprising the above-mentioned multifunctional device for desert channel aeolian sand construction, and further comprising the following steps:

[0040] S1: According to the channel cross section, prefabricate and process the compacted bottom plate 1, the compacted side plate 2 and the end plugging plate 4, adjust the angles of the compacted bottom plate 1 and the compacted side plate 2, so that the compressed side plate and the compacted bottom plate 1 can match the channel cross section, and connect them with a retractable connecting rod 5. After the connection is completed, the retractable connecting rod 5 is locked by a locking device 8. Adjust the position of the water-blocking baffle 3 according to the required water permeability, assemble the two end plugging plates, and complete the assembly.

[0041] S2: The multifunctional device for the construction of aeolian sand anti-freezing expansion layer in desert channels is connected to a common excavator on the market by using a standard joint 7.

[0042] S3: The excavated channel is filled with aeolian sand, the excavator is driven to the designated position, the water permeability is adjusted by the fine-tuning groove 10, and then the inner cavity is filled with water. While the inner cavity seeps water into the aeolian sand through the outer water permeable holes 12 and the inner water permeable holes 9, the aeolian sand is excavated into a standard section by the excavator, and the section is compacted by the dead weight of the inner cavity wall and water, so as to realize excavation, water injection and compaction at the same time. During the construction process, water is added to the inner cavity in a timely manner according to the amount of water in the inner cavity until the construction of the aeolian sand anti-freezing heave layer of the entire channel is completed.

[0043] Through the above-mentioned multifunctional device and construction method for aeolian sand construction in desert channels, the three steps of traditional "water pressure method" construction "immersion-excavation-manual compaction" are integrated into one device and one step, that is, excavation, immersion and compaction are completed at the same time, ensuring that the aeolian sand is constructed under a state of high moisture content, improving work efficiency and ensuring cross-sectional accuracy.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0045] With the above-mentioned ideal embodiments of the present invention as inspiration, through the above-mentioned description content, relevant personnel can make various changes and modifications without departing from the scope of the technical idea of ​​the present invention.

Claims

1. A multifunctional device for desert channel aeolian sand construction, characterized by: It comprises a compaction bottom plate (1), two compaction side plates (2) and two end plugging plates (4), the bottom edges of the two compaction side plates (2) are rotatably connected to the two side edges of the compaction bottom plate (1) via a rotating shaft (11), and are used for excavating channel cross sections with different slopes, the bottoms of the two end plugging plates (4) are detachably connected to the compaction bottom plate (1), and the two sides of each end plugging plate (4) are detachably connected to the two compaction side plates (2), the compaction bottom plate (1), the two compaction side plates (2) and the two end plugging plates (4) are mutually connected to form an inner cavity, and the inner cavity is used to hold water, the compaction bottom plate (1) and the compaction side plates (2) are both provided with outer water permeable holes (12), and the end plugging plates (4) are fixed with standard connectors (7) for connecting to an excavator; It also comprises a plurality of water-blocking baffles (3), wherein the plurality of water-blocking baffles (3) are connected to the inner side of the compacting side plate (2) and the compacting bottom plate (1) by means of sockets, and the water-blocking baffles (3) are provided with inner water-permeable holes (9), and the inner water-permeable holes (9) can be connected to the outer water-permeable holes (12); Fine-tuning grooves (10) are provided at the boundaries of the compacted bottom plate (1), the compacted side plate (2) and the water-blocking baffle plate (3), and the water-blocking baffle plate (3) is connected to the compacted bottom plate (1) and the compacted side plate (2) in a socket-and-socket manner via the fine-tuning grooves (10).

2. A multifunctional device for desert channel aeolian sand construction as claimed in claim 1, characterized in that: It also comprises a telescopic connecting rod (5), on which a locking device (8) is installed, and both ends of the telescopic connecting rod (5) are telescopic, and both ends of the telescopic connecting rod (5) are rotatably connected to the upper edges of the two compacting side plates (2).

3. A multifunctional device for desert channel aeolian sand construction as claimed in claim 1, characterized in that: The outer water permeable holes (12) and the inner water permeable holes (9) are distributed in a plum blossom shape; when the outer water permeable holes (12) are in a closed state, the inner water permeable holes (9) and the outer water permeable holes (12) are staggered with each other.

4. A multifunctional device for desert channel aeolian sand construction as claimed in claim 3, characterized in that: The diameters of the outer water-permeable holes (12) and the inner water-permeable holes (9) are both 5 mm to 30 mm.

5. A multifunctional device for desert channel aeolian sand construction as claimed in claim 1, characterized in that: A reinforcing connecting rod (6) is fixed between the two end blocking plates (4).

6. A multifunctional device for desert channel aeolian sand construction as claimed in claim 1, characterized in that: The material of the compacted bottom plate (1) and the compacted side plate (2) are both C-grade carbon structural steel with a strength not less than Q235 and a thickness of ≥10 mm, and the end blocking plate (4) is made of stainless steel and has a thickness of ≥4 mm.

7. A multifunctional device for desert channel aeolian sand construction as claimed in claim 1, characterized in that: The material of the water-blocking baffle (3) is C-grade carbon structural steel with a strength not less than Q235 and a thickness of ≥5 mm.

8. A construction method for a multifunctional device for desert channel aeolian sand construction as claimed in any one of claims 2 to 7, characterized in that: The following steps are involved: S1: According to the channel cross section, the angles of the compaction bottom plate (1) and the compaction side plate (2) are adjusted and connected with a retractable connecting rod (5). After the connection is completed, the retractable connecting rod (5) is locked by a locking device (8), the position of the water blocking baffle (3) is adjusted according to the required water permeability, and two end blocking plates are assembled to complete the assembly; S2: Using a standard joint (7), the multifunctional device for constructing a wind-blown sand anti-freezing expansion layer in a channel in a desert area is connected to a common excavator on the market; S3: The excavated channel is filled with aeolian sand, the excavator is driven to a designated position, the water permeability is adjusted using the fine adjustment slot (10), and then the inner cavity is filled with water. While the inner cavity seeps water into the aeolian sand through the outer water permeable holes (12) and the inner water permeable holes (9), the aeolian sand is excavated into a standard cross-section using the excavator, and the cross-section is compacted using the deadweight of the inner cavity wall and water, thereby achieving excavation, water injection and compaction at the same time.

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