A glass fiber reinforced plastic concrete assembled lining channel and a channel construction method

Abstract

The present invention discloses a glass fiber reinforced plastic concrete assembled lining channel, which includes a channel bottom member and concrete standard parts. A glass fiber reinforced plastic standard part is arranged between the channel bottom member and the concrete standard parts. Both ends of the glass fiber reinforced plastic standard part are respectively connected to the channel bottom member and the concrete standard parts through a waterproof sealant. A U-shaped lining channel with an arc-shaped bottom is formed by connecting the channel bottom member, the concrete standard parts, and the glass fiber reinforced plastic standard parts. A caulking is arranged between adjacent concrete standard parts. Adjacent glass fiber reinforced plastic standard parts and adjacent channel bottom members are connected through a waterproof sealant; the glass fiber reinforced plastic standard part is one or any combination of a first glass fiber reinforced plastic standard part, a second glass fiber reinforced plastic standard part, and a third glass fiber reinforced plastic standard part. The glass fiber reinforced plastic concrete assembled lining channel and the channel construction method with the above structure of the present invention can solve the problems of small and unstable sizes of existing channel components, easy generation of cracks, poor assembled characteristics, and slow construction speed.

Description

Technical Field

[0001] The present invention relates to the technical field of irrigation channels, and in particular to a fiberglass reinforced concrete prefabricated lining channel and a channel construction method. Background Art

[0002] In order to save farmland irrigation water and improve the utilization efficiency of irrigation water, anti-seepage measures need to be adopted for the branch, distributary, and field channels in the water conveyance and distribution system to prevent water leakage. At present, the main anti-seepage measure for branch, distributary, and field channels is the rigid anti-seepage layer of concrete lining channels. The existing concrete lining channels are mainly formed by laying full-concrete rigid lining plates. The lining plates are preformed by concrete vibrating machines and tools. After curing to meet the strength requirements, the precast single or multiple concrete lining plates are spliced into different channels, and a certain width of gap is left between each lining plate. Fine aggregate concrete is mixed on-site and filled into the inter-plate gaps to form a complete anti-seepage layer.

[0003] The currently used concrete lining is completely composed of concrete materials, and the channel anti-seepage layer is formed by filling joints with single-plate or multi-plate splicing. There are two main problems as follows:

[0004] (1) For water conveyance channels with different flow requirements, the specifications of precast concrete lining plates are numerous, the plate sizes are small, the assembly workload is large during the construction process, there are too many splicing joints, and the amount of joint-filling concrete that needs to be mixed on-site is large, resulting in many construction links, a large amount of labor, high construction costs, and slow construction speed. This is very unfavorable for the standardization and assembly of the construction process.

[0005] (2) The concrete material has obvious brittle characteristics. In frozen soil areas, due to the uneven frost heaving on both sides of the channel, the concrete lining channel is extremely prone to cracking under complex stress conditions. With the development of cracks, the frost heaving failure phenomenon of the lining channel is prominent. At the same time, the rigid anti-seepage layer with cracks causes a large amount of irrigation water loss and reduces the water use efficiency.

[0006] Moreover, the shapes of concrete lining plates with different specifications vary greatly, the plate sizes are small, and multiple links such as mixing, vibrating, and curing are required in the production process. A large number of molds are needed, and the production speed is slow. The weight of a single concrete lining block is large, a large number are required during construction, and the transportation cost is high. Once the concrete lining is damaged, the materials will become construction waste with a low recycling rate. Summary of the Invention

[0007] The purpose of the present invention is to provide a fiberglass reinforced concrete prefabricated lining channel to solve the problems of small and unstable sizes of existing channel components, easy generation of cracks, poor prefabricated characteristics, and slow construction speed. Another purpose of the present invention is to provide a construction method for a fiberglass reinforced concrete prefabricated lining channel.

[0008] To achieve the above object, the present invention provides a glass fiber reinforced plastic concrete prefabricated lining channel, which includes a bottom channel member and a concrete standard member. A glass fiber reinforced plastic standard member is arranged between the bottom channel member and the concrete standard member. The two ends of the glass fiber reinforced plastic standard member are respectively connected to the bottom channel member and the concrete standard member through a waterproof sealant. The bottom channel member, the concrete standard member, and the glass fiber reinforced plastic standard member are connected to form a U-shaped lining channel with an arc-shaped bottom. A caulking is arranged between adjacent concrete standard members, and adjacent glass fiber reinforced plastic standard members and adjacent bottom channel members are connected through a waterproof sealant; the glass fiber reinforced plastic standard member is one or any combination of a first glass fiber reinforced plastic standard member, a second glass fiber reinforced plastic standard member, and a third glass fiber reinforced plastic standard member.

[0009] Preferably, the width of the caulking is 5 cm, and fine aggregate concrete with a strength grade not lower than that of the concrete standard member is filled in the caulking.

[0010] Preferably, the concrete standard member is a rectangular plate member with a length of 950 mm. A single V-shaped notch three is arranged on one side of the connection end of the concrete standard member and the glass fiber reinforced plastic standard member. The length of the notch three is 45 - 55 mm, and the width of the end of the notch three is equal to the thickness of the glass fiber reinforced plastic standard member; the water-binder ratio of the concrete standard member is 0.47 - 0.41, and the fly ash replacement rate is not more than 20%.

[0011] Preferably, the bottom channel member is of an arc-shaped structure, with a length of 6 m. Single V-shaped notches one are arranged on the outer surfaces of both ends of the bottom channel member, and the length of the notch one is 45 - 55 mm.

[0012] Preferably, the glass fiber reinforced plastic standard member is a rectangular plate member with a length of 6 m. Single V-shaped notches two that are parallel to each other are arranged at both ends of the glass fiber reinforced plastic standard member, and the length of the notch two is 45 - 55 mm; the included angle between the glass fiber reinforced plastic standard member and the vertical direction is 20° - 25°; the width of the first glass fiber reinforced plastic standard member is 108 mm + 2 times the length of the notch two, the width of the second glass fiber reinforced plastic standard member is 58 mm + 2 times the length of the notch two, and the width of the third glass fiber reinforced plastic standard member is 324 mm + 2 times the length of the notch two.

[0013] Preferably, the glass fiber reinforced plastic standard member is the first glass fiber reinforced plastic standard member. The diameter of the arc-shaped bottom channel member is 500 mm, and the central angle corresponding to the bottom channel member is 133°.

[0014] Preferably, the glass fiber reinforced plastic standard member is a combination of the first glass fiber reinforced plastic standard member and the second glass fiber reinforced plastic standard member, and the first glass fiber reinforced plastic standard member and the second glass fiber reinforced plastic standard member are connected through a waterproof sealant; the diameter of the arc-shaped bottom channel member is 600 mm, and the central angle corresponding to the bottom channel member is 120°.

[0015] Preferably, the FRP standard part is FRP standard part three; the diameter of the arc-shaped bottom member of the channel is 800 mm, the central angle corresponding to the bottom member of the channel is 103°, or the diameter of the bottom member of the channel is 1000 mm, the central angle corresponding to the bottom member of the channel is 120°, or the diameter of the bottom member of the channel is 1200 mm, the central angle corresponding to the bottom member of the channel is 131°.

[0016] Preferably, the FRP standard part is a combination of FRP standard part two and FRP standard part three, and FRP standard part two and FRP standard part three are connected by a waterproof sealant; the diameter of the arc-shaped bottom member of the channel is 1400 mm, the central angle corresponding to the bottom member of the channel is 120°, or the diameter of the arc-shaped bottom member of the channel is 1600 mm, the central angle corresponding to the bottom member of the channel is 128°.

[0017] The construction method of the above FRP concrete assembled lining channel includes the following steps:

[0018] S1. Select a suitable FRP concrete assembled lining channel according to the channel flow rate, process and produce FRP standard parts, bottom members of the channel, and concrete standard parts in the factory, and assemble and bond the bottom members of the channel and the corresponding FRP standard parts through a waterproof sealant to form a 6.0 m long FRP lining unit.

[0019] S2. After completing the filling or excavation construction of the channel subgrade at the channel construction site, clean the floating soil and sundries on the channel subgrade.

[0020] S3. Place the concrete standard parts, leaving a 5 cm gap between each concrete standard part to form a joint, and fill the joint with fine aggregate concrete not lower than the strength grade of the concrete standard part.

[0021] S4. Place the FRP lining unit along the longitudinal slope direction of the channel, and remove the oil stain at the connection end with the previous bottom member of the channel.

[0022] S5. After placing each FRP lining unit, bond the FRP lining unit and the concrete standard part with a waterproof sealant, and also connect the adjacent FRP lining units with a waterproof sealant.

[0023] S6. Repeat the construction steps S3 - S5 until the overall construction of the channel is completed.

[0024] The advantages and positive effects of the FRP concrete assembled lining channel and the channel construction method of the present invention are:

[0025] 1. Through the process and construction method of combining FRP and concrete, the durability of the channel is enhanced, the ability of the channel to resist the influence of uneven deformation and frost heave deformation of the channel subgrade is improved, and the crack resistance and durability of the lined channel are improved.

[0026] 2. The bottom component of the water conveyance and distribution efficiency channel is made of fiberglass reinforced plastic produced industrially. Its surface smoothness is higher than that of the concrete lining, improving the water conveyance and distribution efficiency of the channel.

[0027] 3. The lining component uses industrial means to produce and process the bottom component of the channel, reducing the production time of the component and saving the cost of the lining material.

[0028] 4. A large number of standard components are used in the lining construction, reducing the size of the concrete lining, simplifying the construction steps of the lined channel, facilitating the acceleration of the construction process of the prefabricated channel lining project, and reducing the construction cost.

[0029] 5. Standard components are selected for the lining transportation of the lining unit, reducing the weight of the component and the number of special-shaped components, and saving the transportation cost.

[0030] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Description of the Drawings

[0031] Figure 1 It is a top view structural schematic diagram of an embodiment of a fiberglass concrete prefabricated lining channel and a channel construction method of the present invention;

[0032] Figure 2 It is a cross-sectional structural schematic diagram of Embodiment 1 of a fiberglass concrete prefabricated lining channel and a channel construction method of the present invention;

[0033] Figure 3 It is a cross-sectional structural schematic diagram of Embodiment 2 of a fiberglass concrete prefabricated lining channel and a channel construction method of the present invention;

[0034] Figure 4 It is a cross-sectional structural schematic diagram of Embodiment 3 of a fiberglass concrete prefabricated lining channel and a channel construction method of the present invention;

[0035] Figure 5 It is a cross-sectional structural schematic diagram of Embodiment 4 of a fiberglass concrete prefabricated lining channel and a channel construction method of the present invention;

[0036] Figure 6 It is a cross-sectional structural schematic diagram of Embodiment 5 of a fiberglass concrete prefabricated lining channel and a channel construction method of the present invention;

[0037] Figure 7 It is a cross-sectional structural schematic diagram of Embodiment 6 of a fiberglass concrete prefabricated lining channel and a channel construction method of the present invention;

[0038] Figure 8 It is a cross-sectional structural schematic diagram of Embodiment 7 of a fiberglass concrete prefabricated lining channel and a channel construction method of the present invention;

[0039] Figure 9 Schematic structural diagram of the bottom member of the FRP concrete prefabricated lining channel and the channel construction method according to an embodiment of the present invention;

[0040] Figure 10 Schematic structural diagram of the first FRP standard part of the FRP concrete prefabricated lining channel and the channel construction method according to an embodiment of the present invention;

[0041] Figure 11 Schematic structural diagram of the second FRP standard part of the FRP concrete prefabricated lining channel and the channel construction method according to an embodiment of the present invention;

[0042] Figure 12 Schematic structural diagram of the third FRP standard part of the FRP concrete prefabricated lining channel and the channel construction method according to an embodiment of the present invention;

[0043] Figure 13 Schematic structural diagram of the concrete standard part of the FRP concrete prefabricated lining channel and the channel construction method according to an embodiment of the present invention.

[0044] Reference numerals

[0045] 1. Concrete standard part; 2. FRP standard part; 3. Bottom member of the channel; 4. Caulking; 5. Waterproof sealant; 6. First FRP standard part; 7. Second FRP standard part; 8. Third FRP standard part; 9. First cut; 10. Second cut; 11. Third cut. Detailed implementation manners

[0046] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the ordinary meanings understood by those of ordinary skill in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "comprising" or "including" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0047] Figure 1This is a top view structural schematic diagram of an embodiment of a glass fiber reinforced plastic (FRP) - concrete prefabricated lining channel and its construction method according to the present invention. As shown in the figure, a FRP - concrete prefabricated lining channel includes a bottom channel member 3 and a concrete standard member 1. A FRP standard member 2 is arranged between the bottom channel member 3 and the concrete standard member 1. The two ends of the FRP standard member 2 are respectively connected to the bottom channel member 3 and the concrete standard member 1 through a waterproof sealant 5. The bottom channel member 3, the concrete standard member 1, and the FRP standard member 2 are connected to form a U - shaped lining channel with an arc - shaped bottom. Both the bottom channel member 3 and the FRP standard member 2 are prepared by using existing FRP industrial production technologies and then cut and processed into bottom channel members 3 and FRP standard members 2 of required specifications. The concrete standard member 1 is processed and produced by using concrete prefabrication technology. By combining FRP and concrete to form a seepage - proof lining channel, the present invention can overcome the problems that brittle concrete materials are prone to cracking and damage, and the concrete can restrain the deformation of the relatively light - weight FRP lining, improving the stability of the overall lining layer. Moreover, the concrete standard member 1 and the FRP standard member 2 are set as standard members, reducing the types of members and the number of special - shaped members, which is beneficial to saving transportation costs and improving construction efficiency. In addition, the surface of the bottom channel member 3 made of FRP has a high smoothness, which is beneficial to improving the water distribution efficiency of the channel.

[0048] Adjacent FRP standard members 2 and adjacent bottom channel members 3 are both connected through the waterproof sealant 5. The FRP standard member 2 is one or any combination of a first FRP standard member 6, a second FRP standard member 7, and a third FRP standard member 8.

[0049] A caulking 4 is arranged between adjacent concrete standard members 1. The width of the caulking 4 is 5 cm, and fine aggregate concrete with a strength grade not lower than that of the concrete standard member 1 is filled in the caulking 4.

[0050] Figure 13 This is a structural schematic diagram of the concrete standard member of an embodiment of a FRP - concrete prefabricated lining channel and its construction method according to the present invention. As shown in the figure, the concrete standard member 1 is a rectangular plate with a length of 950 mm. On one side of the connecting end of the concrete standard member 1 and the FRP standard member 2, there is a single - V - shaped notch three 11. The length of the notch three 11 is 45 - 55 mm, preferably 50 mm. The width of the end of the notch three 11 is equal to the thickness of the FRP standard member 2. The water - binder ratio of the concrete standard member 1 is 0.47 - 0.41, and the cement is P.O 425 ordinary Portland cement, with a fly ash replacement rate not greater than 20%.

[0051] Figure 9This is a schematic structural diagram of the bottom member of the FRP concrete prefabricated lining channel and the channel construction method according to an embodiment of the present invention. As shown in the figure, the bottom member 3 is an arc structure, and the length of the bottom member 3 is 6 m. Single V-shaped cuts 9 are provided on the outer surfaces at both ends of the bottom member 3, and the length of the cuts 9 is 45-55 mm, preferably 50 mm. The thickness of the bottom member 3 is 10 mm.

[0052] Figure 10 This is a schematic structural diagram of the first FRP standard part of the FRP concrete prefabricated lining channel and the channel construction method according to an embodiment of the present invention. Figure 11 This is a schematic structural diagram of the second FRP standard part of the FRP concrete prefabricated lining channel and the channel construction method according to an embodiment of the present invention. Figure 12 This is a schematic structural diagram of the third FRP standard part of the FRP concrete prefabricated lining channel and the channel construction method according to an embodiment of the present invention. As shown in the figure, the FRP standard part 2 is a rectangular plate member with a length of 6 m. Parallel single V-shaped cuts 10 are provided at both ends of the FRP standard part 2, and the length of the cuts 10 is 45-55 mm, preferably 50 mm. The included angle between the FRP standard part 2 and the vertical direction is 20°-25°, preferably 22°. The width of the first FRP standard part 6 is 108 mm + 2 times the length of the cut 10, the width of the second FRP standard part 7 is 58 mm + 2 times the length of the cut 10, and the width of the third FRP standard part 8 is 324 mm + 2 times the length of the cut 10.

[0053] The construction method of the above FRP concrete prefabricated lining channel includes the following steps:

[0054] S1. Select a suitable FRP concrete prefabricated lining channel according to the channel flow rate, and process and produce the FRP standard part 2, the bottom member 3, and the concrete standard part 1 in the factory. Then, assemble and bond the bottom member 3 and the corresponding FRP standard part 2 with a waterproof sealant 5 to complete the formation of a 6.0 m long FRP lining unit.

[0055] S2. After completing the channel soil foundation filling or excavation construction at the channel construction site, clean the floating soil and debris on the channel soil foundation.

[0056] S3. Place the concrete standard part 1, leaving a 5 cm gap between each concrete standard part 1 to form a joint 4, and fill fine aggregate concrete with a strength grade not lower than that of the concrete standard part 1 in the joint.

[0057] S4. Place the FRP lining unit along the longitudinal slope direction of the channel, and remove the oil stain at the connection end with the previous bottom member 3.

[0058] S5. After placing each FRP lining unit, bond the FRP lining unit to the concrete standard part 1 with the waterproof sealant 5, and also connect adjacent FRP lining units through the waterproof sealant 5.

[0059] S6. Repeat the construction steps S3 - S5 until the overall construction of the channel is completed.

[0060] Embodiment 1

[0061] Figure 2 This is a schematic cross - sectional structure diagram of Embodiment 1 of a FRP - concrete assembled lining channel and its construction method according to the present invention. As shown in the figure, the depth of the lining channel in this embodiment is 0.55 m, which is applicable to the assembled lining channel with a water depth less than 0.5 m. The FRP standard part 2 is the first type of FRP standard part 6, the diameter of the arc - shaped bottom member 3 of the channel is 500 mm, and the central angle corresponding to the bottom member 3 is 133°. The concrete standard part 1, the first type of FRP standard part 6 and the bottom member 3 are bonded with the waterproof sealant 5 to form a D50 - type assembled lining channel.

[0062] Embodiment 2

[0063] Figure 3 This is a schematic cross - sectional structure diagram of Embodiment 2 of a FRP - concrete assembled lining channel and its construction method according to the present invention. As shown in the figure, the depth of the lining channel in this embodiment is 0.65 m, which is applicable to the assembled lining channel with a water depth less than 0.55 m. The FRP standard part 2 is a combination of the first type of FRP standard part 6 and the second type of FRP standard part 7. The diameter of the arc - shaped bottom member 3 of the channel is 600 mm, and the central angle corresponding to the bottom member 3 is 120°. The concrete standard part 1, the first type of FRP standard part 6, the second type of FRP standard part 7 and the bottom member 3 are bonded with the waterproof sealant 5 to form a D60 - type assembled lining channel.

[0064] Embodiment 3

[0065] Figure 4 This is a schematic cross - sectional structure diagram of Embodiment 3 of a FRP - concrete assembled lining channel and its construction method according to the present invention. As shown in the figure, the depth of the lining channel in this embodiment is 0.75 m, which is applicable to the assembled lining channel with a water depth less than 0.65 m. The FRP standard part 2 is the third type of FRP standard part 8. The diameter of the arc - shaped bottom member 3 of the channel is 800 mm, and the central angle corresponding to the bottom member 3 is 103°. The concrete standard part 1, the third type of FRP standard part 8 and the bottom member 3 are bonded with the waterproof sealant 5 to form a D80 - type assembled lining channel.

[0066] Embodiment 4

[0067] Figure 5This is a schematic cross-sectional structure diagram of the fourth embodiment of a glass fiber reinforced plastic (FRP) - concrete prefabricated lining channel and its construction method according to the present invention. As shown in the figure, the depth of the lining channel in this embodiment is 0.85 m, which is applicable to prefabricated lining channels with a water depth less than 0.75 m. The FRP standard part 2 is the third type of FRP standard part 8. The diameter of the arc-shaped bottom channel member 3 is 1000 mm, and the central angle corresponding to the bottom channel member 3 is 120°. The concrete standard part 1, the third type of FRP standard part 8, and the bottom channel member 3 are bonded together with a waterproof sealant 5 to form a D100 type prefabricated lining channel.

[0068] Embodiment Five

[0069] Figure 6 This is a schematic cross-sectional structure diagram of the fifth embodiment of a glass fiber reinforced plastic (FRP) - concrete prefabricated lining channel and its construction method according to the present invention. As shown in the figure, the depth of the lining channel in this embodiment is 0.95 m, which is applicable to prefabricated lining channels with a water depth less than 0.85 m. The FRP standard part 2 is the third type of FRP standard part 8. The diameter of the arc-shaped bottom channel member 3 is 1200 mm, and the central angle corresponding to the bottom channel member 3 is 131°. The concrete standard part 1, the third type of FRP standard part 8, and the bottom channel member 3 are bonded together with a waterproof sealant 5 to form a D120 type prefabricated lining channel.

[0070] Embodiment Six

[0071] Figure 7 This is a schematic cross-sectional structure diagram of the sixth embodiment of a glass fiber reinforced plastic (FRP) - concrete prefabricated lining channel and its construction method according to the present invention. As shown in the figure, the depth of the lining channel in this embodiment is 1.05 m, which is applicable to prefabricated lining channels with a water depth less than 0.95 m. The FRP standard part 2 is a combination of the second type of FRP standard part 7 and the third type of FRP standard part 8. The diameter of the arc-shaped bottom channel member 3 is 1400 mm, and the central angle corresponding to the bottom channel member 3 is 120°. The concrete standard part 1, the second type of FRP standard part 7, the third type of FRP standard part 8, and the bottom channel member 3 are bonded together with a waterproof sealant 5 to form a D140 type prefabricated lining channel.

[0072] Embodiment Seven

[0073] Figure 8 This is a schematic cross-sectional structure diagram of the seventh embodiment of a glass fiber reinforced plastic (FRP) - concrete prefabricated lining channel and its construction method according to the present invention. As shown in the figure, the depth of the lining channel in this embodiment is 1.15 m, which is applicable to prefabricated lining channels with a water depth less than 1.05 m. The FRP standard part 2 is a combination of the second type of FRP standard part 7 and the third type of FRP standard part 8. The diameter of the arc-shaped bottom channel member 3 is 1600 mm, and the central angle corresponding to the bottom channel member 3 is 128°. The concrete standard part 1, the second type of FRP standard part 7, the third type of FRP standard part 8, and the bottom channel member 3 are bonded together with a waterproof sealant 5 to form a D160 type prefabricated lining channel.

[0074] The parameters of the lining channel components with different flow requirements are shown in Table 1.

[0075] Table 1 Parameters of the lining channel components with different flow requirements

[0076]

[0077]

[0078] Therefore, by adopting the glass fiber reinforced plastic concrete assembled lining channel with the above structure and the channel construction method of the present invention, the problems of unstable existing channels, easy generation of cracks and slow construction speed can be solved.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present invention, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A glass fiber reinforced plastic (FRP) - concrete prefabricated lining channel, Characterized in that: It includes a bottom channel member and concrete standard parts. There is an FRP standard part arranged between the bottom channel member and the concrete standard parts. The two ends of the FRP standard part are respectively connected to the bottom channel member and the concrete standard parts through waterproof sealant. The bottom channel member, the concrete standard parts, and the FRP standard parts are connected to form a U - shaped lining channel with an arc - shaped bottom. There is a caulking between adjacent concrete standard parts, and adjacent FRP standard parts and adjacent bottom channel members are connected through waterproof sealant; the FRP standard part is one or any combination of FRP standard part one, FRP standard part two, and FRP standard part three; The bottom channel member is of an arc - shaped structure, the length of the bottom channel member is 6m, and single V - shaped cuts one are arranged on the outer surfaces of the two ends of the bottom channel member, and the length of the cut one is 45 - 55mm; The bottom channel member is made of FRP material; The FRP standard part is a rectangular plate part with a length of 6m. There are parallel single V - shaped cuts two at both ends of the FRP standard part, and the length of the cut two is 45 - 55mm; the included angle between the FRP standard part and the vertical direction is 20° - 25°; The width of FRP standard part one is 108mm + 2 times the length of cut two, the width of FRP standard part two is 58mm + 2 times the length of cut two, and the width of FRP standard part three is 324mm + 2 times the length of cut two.

2. The glass fiber reinforced plastic - concrete prefabricated lining channel according to claim 1, Characterized in that: The width of the caulking is 5cm, and fine aggregate concrete with a strength grade not lower than that of the concrete standard parts is filled in the caulking.

3. The glass fiber reinforced plastic - concrete prefabricated lining channel according to claim 1, Characterized in that: The concrete standard part is a rectangular plate part with a length of 950mm. There is a single V - shaped cut three on one side of the connection end of the concrete standard part and the FRP standard part, and the length of the cut three is 45 - 55mm. The width of the end of the cut three is equal to the thickness of the FRP standard part; the water - binder ratio of the concrete standard part is 0.47 - 0.41, and the fly ash replacement rate is not more than 20%.

4. The glass fiber reinforced plastic - concrete prefabricated lining channel according to claim 1, Characterized in that: The FRP standard part is FRP standard part one, the diameter of the arc - shaped bottom channel member is 500mm, and the central angle corresponding to the bottom channel member is 133°.

5. The glass fiber reinforced plastic - concrete prefabricated lining channel according to claim 1, Characterized in that: The FRP standard part is a combination of FRP standard part one and FRP standard part two, and FRP standard part one and FRP standard part two are connected through waterproof sealant; the diameter of the arc - shaped bottom channel member is 600mm, and the central angle corresponding to the bottom channel member is 120°.

6. The glass fiber reinforced plastic - concrete prefabricated lining channel according to claim 1, Characterized in that: The FRP standard part is FRP standard part three; the diameter of the arc-shaped bottom member of the channel is 800 mm, the central angle corresponding to the bottom member of the channel is 103°, or the diameter of the bottom member of the channel is 1000 mm, the central angle corresponding to the bottom member of the channel is 120°, or the diameter of the bottom member of the channel is 1200 mm, the central angle corresponding to the bottom member of the channel is 131°.

7. A glass fiber reinforced plastic concrete assembled lining channel according to claim 1, characterized in that: The FRP standard part is a combination of FRP standard part two and FRP standard part three, and FRP standard part two and FRP standard part three are connected by a waterproof sealant; the diameter of the arc-shaped bottom member of the channel is 1400 mm, the central angle corresponding to the bottom member of the channel is 120°, or the diameter of the arc-shaped bottom member of the channel is 1600 mm, the central angle corresponding to the bottom member of the channel is 128°.

8. A construction method for a glass fiber reinforced plastic concrete assembled lining channel according to any one of claims 1-7, characterized in that, comprising the following steps: S1. Select a suitable glass fiber reinforced plastic concrete assembled lining channel according to the channel flow rate, process and produce FRP standard parts, bottom members of the channel, and concrete standard parts in the factory, and assemble and bond the bottom members of the channel and the corresponding FRP standard parts through a waterproof sealant to complete the formation of a 6.0 m long FRP lining unit; S2. After completing the filling or excavation construction of the channel subgrade at the channel construction site, clean the floating soil and sundries on the channel subgrade; S3. Place the concrete standard parts, leaving a 5 cm gap between each concrete standard part to form a joint, and fill fine aggregate concrete not lower than the strength grade of the concrete standard parts in the joint; S4. Place the FRP lining unit along the longitudinal slope direction of the channel, and remove the oil stain at the connection end with the previous bottom member of the channel; S5. After each placement of an FRP lining unit, bond the FRP lining unit and the concrete standard parts with a waterproof sealant, and also connect adjacent FRP lining units through a waterproof sealant; S6. Repeat the construction steps S3-S5 until the overall construction of the channel is completed.

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