Water conservancy project composite water conveying pipe and construction technology thereof

Abstract

The invention belongs to the technical field of water conservancy projects, and particularly relates to a water conservancy project composite water conveying pipe and a construction technology thereof.In the water conservancy project composite water conveying pipe, an inner side connection reinforcing structure is arranged between pipe pieces, the connection strength between the pipe pieces can be effectively improved, and the pipe wall inner side bending moment can be resisted; the first installation groove is connected with the first installation protruding piece, the second installation protruding piece is connected with the second installation groove, the problems of slab staggering deformation, pipe piece floating and the like during pipe piece installation grouting can be effectively avoided, deviation of the first waterproof structure / the second waterproof structure can be avoided, and the waterproof effect is enhanced; construction is convenient, and the period is short; first consolidation grout is poured behind the wall of the water conveying pipe through the first grouting hole, the water conveying pipe is fixed, then the second grouting hole is formed, second consolidation grout is poured into the second grouting hole, a gap in the top of the water conveying pipe is filled, meanwhile, surrounding rock around the water conveying pipe is consolidated, and the surrounding rock and the water conveying pipe are consolidated into a whole; and the pressure resistance and seepage resistance of the water conveying pipe are further improved.

Description

Technical Field

[0001] The invention belongs to the technical field of water conservancy projects, and in particular relates to a composite water pipe for water conservancy projects and a construction process thereof. Background Art

[0002] In the water supply tunnels of large and medium-sized water diversion, water supply and drainage projects in water conservancy projects, shield or TBM construction is adopted. Water supply segments are installed in shield or TBM tunnels. Reinforced concrete segments are often used to form water supply channels or reinforced concrete segments plus cast-in-place concrete linings are used to form water supply channels. However, there are some problems:

[0003] When reinforced concrete segments are spliced ​​to form a water conveyance channel, the water conveyance channel is usually composed of multiple segments that are flat-jointed and then connected with bolts. Most water conveyance pipes are also flat-jointed and then connected with bolts. The connected water conveyance channel is prone to segment displacement and deformation and segment floating under the action of grouting pressure, affecting the structural stability of the water conveyance channel and increasing water loss during water conveyance. The method of forming a water conveyance channel with reinforced concrete segments and cast-in-place concrete lining requires that the cast-in-place reinforced concrete lining (inner lining) can only be constructed after the installation and construction of the entire tunnel segment is completed. The project investment is large and the construction period is long.

[0004] Therefore, a composite water pipe for water conservancy project and a construction process thereof are proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a composite water pipe for water conservancy projects and a construction process thereof to solve the above problems.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] A composite water pipe for a water conservancy project, comprising a plurality of water pipe sections connected in sequence, the water pipe section comprising a plurality of pipe segments, two adjacent pipe segments being fixedly connected, a reinforcement assembly being arranged in the pipe segment, a first grouting hole being opened on the pipe segment, first mounting protrusions and first mounting grooves being arranged on opposite sides of the pipe segment, the first mounting protrusions and the first mounting grooves being arranged along the axial direction of the pipe segment, the first mounting protrusions of the two adjacent pipe segments being matched with the first mounting grooves, a first waterproof structure being arranged between the matched first mounting protrusions and the first mounting grooves, two adjacent pipe segments of the same water pipe section being fixedly connected by a first connecting structure, and an inner connecting reinforcing structure being arranged between two adjacent pipe segments of the same water pipe section;

[0008] A second mounting protrusion and a second mounting groove are respectively provided at both ends of the tube segment, and the second mounting protrusion and the second mounting groove are both arranged along the arc direction of the tube segment, the second mounting protrusion and the second mounting groove of the two adjacent tube segments in the two adjacent water pipe sections are adapted to each other, and a second waterproof structure is arranged between the matching second mounting protrusion and the second mounting groove, the two adjacent tube segments in the two adjacent water pipe sections are fixedly connected by a second connecting structure, and the inner side connecting reinforcement structure is arranged between the two adjacent tube segments in the two adjacent water pipe sections.

[0009] In the composite water pipe for water conservancy projects of the present invention, the first connection structure includes a plurality of first bolt holes, which are respectively opened on two opposite sides of the pipe segment, and the plurality of first bolt holes located on one side of the pipe segment are arranged at equal intervals, and the first bolt hole is located at one end of the concave surface of the pipe segment and is connected to a first plugging groove, and the first plugging groove is opened on the concave surface of the pipe segment, and the plurality of first bolt holes of two adjacent pipe segments are arranged one by one, and a first bolt is passed through the two correspondingly arranged first bolt holes, and the end of the first bolt extends into the first plugging groove and is threadedly connected with a first nut, and a first gasket is arranged between the first nut and the bottom wall of the first plugging groove, and the first gasket is sleeved on the outside of the first bolt.

[0010] In the composite water pipe for water conservancy projects of the present invention, the inner connection reinforcement structure comprises an inner lining layer, the inner lining layer is attached to the concave surface of the pipe segment, a plurality of studs are fixed to the convex surface of the inner lining layer, the plurality of studs are arranged in an array, the studs are perpendicular to the convex surface of the inner lining layer, and the studs are buried in the pipe segment;

[0011] A groove is circumferentially provided at the outer edge of the inner lining layer, the groove is close to the concave surface of the inner lining layer, the adjacent grooves of two adjacent inner lining layers are arranged correspondingly, and the two adjacent inner lining layers are welded and fixed at the grooves.

[0012] In the composite water pipe for hydraulic engineering of the present invention, the inner connection reinforcement structure comprises a plurality of welding ribs, which are buried in the pipe segment. In the same water pipe section, a plurality of welding ribs are respectively arranged on opposite sides of the pipe segment, and the plurality of welding ribs located on the same side are arranged at equal intervals along the length direction of the pipe segment. A plurality of welding ribs are respectively arranged at both ends of the water pipe section, and the plurality of welding ribs located at the end of the water pipe section are arranged at equal intervals along the arc direction of the pipe segment. An empty groove is circumferentially provided on the concave outer edge of the pipe segment, and one end of the welding rib extends into the empty groove. Adjacent two welding ribs of adjacent two pipe segments are overlapped, and the overlapping two welding ribs are welded and fixed.

[0013] In the composite water pipe of the hydraulic engineering project of the present invention, the reinforcing component includes a plurality of reinforcing transverse ribs and a plurality of reinforcing longitudinal ribs, the reinforcing transverse ribs and the reinforcing longitudinal ribs are both buried in the pipe segment, the reinforcing longitudinal ribs are arranged along the length direction of the pipe segment, and a plurality of the reinforcing longitudinal ribs are arranged at equal intervals along the circumferential direction of the pipe segment, the reinforcing transverse ribs are arranged along the circumferential direction of the pipe segment, and a plurality of the reinforcing transverse ribs are arranged at equal intervals along the length direction of the pipe segment.

[0014] In the composite water pipe for water conservancy projects of the present invention, the first waterproof structure includes a first water stop strip, the first water stop strip is arranged at the bottom of the first installation groove, and the first water stop strip abuts against the first installation protrusion.

[0015] In the composite water pipe for water conservancy projects of the present invention, the second connection structure includes a plurality of second bolt holes, which are respectively opened at both ends of the pipe segment, and the plurality of second bolt holes located at one end of the pipe segment are arranged at equal intervals. The second bolt hole is located at one end of the concave surface of the pipe segment and is connected to a second sealing groove, and the second sealing groove is opened on the concave surface of the pipe segment. The plurality of second bolt holes of two adjacent pipe segments are arranged one by one, and second bolts are passed through the two correspondingly arranged second bolt holes. The end of the second bolt penetrates into the second sealing groove and is threadedly connected with a second nut, and a second gasket is arranged between the second nut and the bottom wall of the second sealing groove, and the second gasket is sleeved on the outside of the second bolt.

[0016] In the composite water pipe for water conservancy projects of the present invention, the second waterproof structure includes second water stop strips circumferentially arranged at the bottoms of a plurality of second installation grooves, and the second water stop strips abut against the second installation protrusions.

[0017] In the composite water pipe for hydraulic engineering of the present invention, a first elastic pad is provided between two adjacent pipe segments in the same water pipe section, and a second elastic pad is provided between two adjacent pipe segments of two adjacent water pipe sections.

[0018] A construction process for a composite water pipe for a water conservancy project, used for the composite water pipe for a water conservancy project, comprises the following steps:

[0019] The prefabricated pipe segments are transported to the excavated tunnel, the pipe segments are circumferentially assembled into water pipe sections and fixed, the water pipe sections are sequentially connected and fixed along the length direction of the tunnel, the first consolidation slurry is poured into the wall of the water pipe through the first grouting hole of the pipe segment to form a stabilization layer, the water pipe is fixed, and a hole is drilled into the surrounding rock around the water pipe at the first grouting hole to obtain a second grouting hole, and the second consolidation slurry is poured into the second grouting hole to fill the gap on the top of the water pipe, while consolidating the surrounding rock around the water pipe to form a consolidation layer, and this is repeated many times until the construction is completed.

[0020] Compared with the prior art, the present invention has the following advantages and technical effects:

[0021] When the water pipe of the present invention is spliced, the prefabricated pipe segments are first transported to the excavated tunnel, the pipe segments are circumferentially enclosed to form a water pipe, and then the multiple pipe segments are fixed by the first connecting structure, and the inner connecting reinforcing structure is arranged between the pipe segments, which can effectively increase the connection strength between the pipe segments and resist the inner bending moment of the pipe wall; the two adjacent pipe segments of the same water pipe are connected by the first mounting groove and the first mounting protrusion, and the two adjacent water pipes are connected by the second mounting protrusion and the second mounting groove, which can effectively avoid the occurrence of problems such as misalignment and deformation of the pipe segment wall and floating of the pipe segment during grouting, and the inner connecting reinforcing structure is arranged in the first mounting groove. A first waterproof structure is arranged, and a second waterproof structure is arranged in the second installation groove to avoid the deviation of the first waterproof structure / the second waterproof structure, which can enhance the waterproof effect, and the construction is convenient. It can be carried out synchronously with the excavation of the tunnel, and the construction period is short. After the water pipe is connected, the first consolidation slurry is poured into the wall of the water pipe through the first grouting hole to fix the water pipe, and then the second grouting hole is opened, and the second consolidation slurry is poured into the second grouting hole to fill the gap at the top of the water pipe. At the same time, the surrounding rock around the grouting water pipe is consolidated, so that the surrounding rock and the water pipe are consolidated into a whole, and the pressure resistance and anti-seepage capacity of the water pipe are further increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0023] Figure 1 is a cross-sectional view of the water pipe in the present invention;

[0024] Figure 2 is a longitudinal sectional view of the water delivery pipe in the present invention;

[0025] Figure 3 It is a schematic diagram of one type of annular connection between two adjacent segments of the same water delivery pipe section in the present invention;

[0026] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0027] Figure 5 It is a schematic diagram of one type of longitudinal connection of adjacent pipe segments of two adjacent water pipe sections in the present invention;

[0028] Figure 6 It is another schematic diagram of annular connection between two adjacent segments of the same water delivery pipe section in the present invention;

[0029] Figure 7 Another schematic diagram of longitudinal connection of adjacent pipe segments of two adjacent water pipe sections in the present invention;

[0030] Among them, 1. pipe segment; 2. stabilization layer; 3. consolidation layer; 4. second grouting hole; 5. first grouting hole; 101. strengthening transverse reinforcement; 102. strengthening longitudinal reinforcement; 103. lining layer; 104. anti-corrosion layer; 105. first bolt hole; 106. first bolt; 107. first nut; 108. first gasket; 109. first sealing material; 110. first water stop strip; 111. first elastic pad; 113. stud; 114. second bolt hole; 115. second water stop strip; 116. second elastic pad; 117. second bolt; 118. second sealing material; 119. second gasket; 120. second nut; 121. welding rib; 122. empty slot. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Reference Figures 1 to 7 The present invention discloses a composite water pipe for a water conservancy project, comprising a plurality of water pipe sections connected in sequence, the water pipe section comprising a plurality of pipe segments 1, two adjacent pipe segments 1 being fixedly connected, a reinforcing assembly being arranged in the pipe segment 1, a first grouting hole 5 being opened on the pipe segment 1, first mounting protrusions and first mounting grooves being arranged on opposite sides of the pipe segment 1, the first mounting protrusions of the two adjacent pipe segments 1 being matched with the first mounting grooves, a first waterproof structure being arranged between the matched first mounting protrusions and the first mounting grooves, two adjacent pipe segments 1 of the same water pipe section being fixedly connected by a first connecting structure, and an inner connecting reinforcing structure being arranged between the two adjacent pipe segments 1 of the same water pipe section;

[0034] A second mounting protrusion and a second mounting groove are respectively provided at both ends of the tube segment 1, and the second mounting protrusion and the second mounting groove are both arranged along the arc direction of the tube segment 1. The second mounting protrusions and the second mounting grooves of the two adjacent tube segments 1 in the two adjacent water pipe sections are adapted to each other, and a second waterproof structure is arranged between the matching second mounting protrusions and the second mounting grooves. The two adjacent tube segments 1 in the two adjacent water pipe sections are fixedly connected by a second connecting structure, and an inner side connecting reinforcement structure is arranged between the two adjacent tube segments 1 in the two adjacent water pipe sections.

[0035] During the construction and installation of the water pipe of the present invention, the prefabricated pipe segments 1 are first transported to the excavated tunnel, and the pipe segments 1 are circumferentially enclosed to form a water pipe segment, and then a plurality of pipe segments 1 are fixed by a first connecting structure, and the plurality of water pipe segments are connected by a second mounting protrusion and a second mounting groove that are matched, and then fixedly connected by a second connecting structure, and an inner connecting reinforcement structure is provided between adjacent pipe segments 1, which can effectively enhance the tensile strength between the pipe segments 1 and resist the outer and inner bending moments of the pipe wall; two adjacent pipe segments 1 of the same water pipe segment are connected by a first mounting groove and a first mounting protrusion, and two adjacent water pipe segments are connected by a second mounting protrusion and a second mounting groove, which can effectively avoid In order to avoid the problems of the pipe segment 1 being dislocated, deformed, or floating, a first waterproof structure is arranged in the first installation groove, and a second waterproof structure is arranged in the second installation groove, so as to avoid the first waterproof structure / the second waterproof structure from being offset, thereby enhancing the waterproof effect. The construction is convenient and can be carried out synchronously with the excavation of the tunnel, and the working cycle is short. After the water pipe is connected, a first consolidation slurry is poured into the wall of the water pipe through the first grouting hole 5 to fix the water pipe, and then a second grouting hole 4 is opened, and the second consolidation slurry is poured into the second grouting hole 4 to fill the gap at the top of the water pipe, and at the same time, the surrounding rock around the water pipe is consolidated, so that the surrounding rock and the water pipe are consolidated into a whole, jointly bearing the force, and further increasing the compressive strength and anti-seepage ability of the water pipe.

[0036] Among them, the first consolidation slurry is fine stone concrete or cement mortar with a strength of C30 or M30; the second consolidation slurry is cement slurry with a water-cement ratio of 1:1, 0.8:1, or 0.5:1.

[0037] In a feasible solution, the first connection structure includes a plurality of first bolt holes 105, and the plurality of first bolt holes 105 are respectively opened on two opposite sides of the pipe segment 1, and the plurality of first bolt holes 105 located on one side of the pipe segment 1 are arranged at equal intervals, and the first bolt hole 105 is located at one end of the concave surface of the pipe segment 1 and is connected to a first sealing groove, and the first sealing groove is opened on the concave surface of the pipe segment 1, and the plurality of first bolt holes 105 of two adjacent pipe segments 1 are arranged one by one, and a first bolt 106 is passed through the two corresponding first bolt holes 105, and the end of the first bolt 106 extends into the first sealing groove and is threadedly connected with a first nut 107, and a first gasket 108 is arranged between the first nut 107 and the bottom wall of the first sealing groove, and the first gasket 108 is sleeved on the outside of the first bolt 106. A first small hole is opened on the first gasket 108, and the first small hole is connected to the first bolt hole 105; after the first bolt 106 is inserted into the first bolt hole 105 and fixed by the first nut 107, cement slurry is poured into the first bolt hole 105 through the first small hole to consolidate the first bolt hole 105 and prevent the first bolt 106 from rusting.

[0038] The first bolt 106 is set to be arc-shaped with the convex surface facing the outside of the water pipe. Connecting two adjacent pipe segments 1 through the first bolt 106 can effectively increase the structural strength of the adjacent pipe segments 1, increase the tensile and compressive resistance of the water pipe, and be able to resist the bending moment on the outside of the pipe wall.

[0039] The first sealing groove is filled with a first sealing material 109 . The first sealing material 109 is made of epoxy mortar and has a sealing effect to prevent the first bolt 106 from rusting.

[0040] In a feasible solution, the inner connection reinforcement structure includes an inner lining layer 103, the inner lining layer 103 is attached to the concave surface of the pipe segment 1, a plurality of studs 113 are fixed to the convex surface of the inner lining layer 103, the plurality of studs 113 are arranged in an array, the studs 113 are perpendicular to the convex surface of the inner lining layer 103, and the studs 113 are anchored in the pipe segment 1;

[0041] The studs 113 are used to enhance the shear connection strength between the lining layer 103 and the segment 1 , and also to enhance the anti-slip capability between the segment 1 and the lining layer 103 .

[0042] A groove is circumferentially provided at the outer edge of the inner lining layer 103 , the groove is close to the concave surface of the inner lining layer 103 , and the adjacent grooves of two adjacent inner lining layers 103 are correspondingly arranged to form a V-shaped groove, and the two adjacent inner lining layers 103 are fixed by V-shaped welding at the groove.

[0043] The inner lining layer 103 is a curved steel plate.

[0044] The concave surface of the lining layer 103 is coated with an anti-corrosion layer 104 to prevent the lining layer 103 from being corroded.

[0045] In another feasible solution, the inner connection reinforcement structure includes a plurality of welding ribs 121, which are buried in the pipe segment 1. In the same water pipe section, a plurality of welding ribs 121 are respectively arranged on opposite sides of the pipe segment 1, and the plurality of welding ribs 121 located on the same side are arranged at equal intervals along the length direction of the pipe segment 1. A plurality of welding ribs 121 are respectively arranged at both ends of the water pipe section, and the plurality of welding ribs 121 located at the end of the water pipe section are arranged at equal intervals along the arc direction of the pipe segment 1; a hollow groove 122 is circumferentially provided on the concave outer edge of the pipe segment 1, and one end of the welding rib 121 extends into the hollow groove 122. The cross-sectional shape of the hollow groove 122 is trapezoidal and the small end faces the outer pipe wall. The adjacent two welding ribs 121 of the two adjacent pipe segments 1 are overlapped, and the two overlapping welding ribs 121 are welded and fixed.

[0046] When the inner lining layer 103 is not needed, the connection strength between adjacent segments 1 is strengthened by providing welding ribs 121. The empty grooves 122 are used to overlap the welding ribs 121 to prevent the welding ribs 121 from extending out of the concave surface of the segment 1. The empty grooves 122 can also be filled with epoxy mortar to seal the welding ribs 121. The cross-sectional shape of the empty grooves 122 is trapezoidal with the small end facing the outer pipe wall to prevent the filled epoxy mortar from falling off.

[0047] In a feasible solution, the reinforcement component includes multiple reinforcing transverse ribs 101 and multiple reinforcing longitudinal ribs 102. The reinforcing transverse ribs 101 and the reinforcing longitudinal ribs 102 are both buried in the segment 1. The reinforcing longitudinal ribs 102 are arranged along the length direction of the segment 1. The multiple reinforcing longitudinal ribs 102 are arranged at equal intervals along the circumferential direction of the segment 1. The reinforcing transverse ribs 101 are arranged along the circumferential direction of the segment 1. The multiple reinforcing transverse ribs 101 are arranged at equal intervals along the length direction of the segment 1.

[0048] In a feasible solution, the first waterproof structure includes a first water stop strip 110 , which is disposed at the bottom of the first installation groove, and the first water stop strip 110 abuts against the first installation protrusion.

[0049] The first water stop strip 110 is located at the bottom of the first installation groove and abuts against the first installation protrusion, so as to prevent the first water stop strip 110 from deviating and enhance the waterproof effect.

[0050] In a feasible solution, the second connection structure includes a plurality of second bolt holes 114, and the plurality of second bolt holes 114 are respectively opened at both ends of the pipe segment 1, and the plurality of second bolt holes 114 located at one end of the pipe segment 1 are arranged at equal intervals, and the second bolt holes 114 are located at one end of the concave surface of the pipe segment 1 and are connected to a second sealing groove, and the second sealing groove is opened on the concave surface of the pipe segment 1, and the plurality of second bolt holes 114 of two adjacent pipe segments 1 are arranged one by one, and second bolts 117 are passed through the two corresponding second bolt holes 114, and the ends of the second bolts 117 are inserted into the second sealing groove and are threadedly connected with the second nut 120, and a second gasket 119 is arranged between the second nut 120 and the bottom wall of the second sealing groove, and the second gasket 119 is sleeved on the outside of the second bolt 117.

[0051] A second small hole is opened on the second gasket 119, and the second small hole is connected to the second bolt hole 114. After the second bolt 117 is inserted into the second bolt hole 114 and fixed by the second nut 120, cement slurry is poured into the second bolt hole 114 through the second small hole to consolidate the second bolt hole 114 and prevent the second bolt 117 from rusting.

[0052] In a feasible solution, the second waterproof structure includes a second water stop strip 115 circumferentially arranged at the bottom of a plurality of second installation grooves, and the second water stop strip 115 abuts against the second installation protrusion.

[0053] The second water stop strip 115 is located at the bottom of the second installation groove and abuts against the second installation protrusion, so as to prevent the second water stop strip 115 from deviating and enhance the waterproof effect.

[0054] In a feasible solution, a first elastic pad 111 is provided between two adjacent pipe segments 1 in the same water pipe, and a second elastic pad 116 is provided between two adjacent pipe segments 1 of two adjacent water pipes.

[0055] The arrangement of the first elastic pad 111 and the second elastic pad 116 can effectively prevent a hard contact between two adjacent segments 1 , which would cause damage to the segment 1 .

[0056] A construction process for a composite water pipe for a water conservancy project, which is used for the composite water pipe for a water conservancy project, comprises the following steps:

[0057] The prefabricated pipe segment 1 is transported to the excavated tunnel, the pipe segment 1 is circumferentially installed into a water pipe section and fixed, the water pipe sections are sequentially connected and fixed along the length direction of the tunnel, and the first consolidation slurry is poured into the wall of the water pipe through the first grouting hole 5 of the pipe segment 1 in the water pipe to form a stabilization layer 2, the water pipe is fixed, and a hole is drilled into the surrounding rock around the water pipe at the first grouting hole 5 to obtain a second grouting hole 4, and the second consolidation slurry is poured into the second grouting hole 4 to fill the gap at the top of the water pipe, and at the same time consolidate the surrounding rock around the water pipe to form a consolidation layer 3, and this is repeated many times until the construction is completed.

[0058] The first grouting holes 5 and the second grouting holes 4 are arranged in one-to-one correspondence. The number of the first grouting holes 5 is 5. Taking the vertical first grouting hole 5 as the 0° reference, four first grouting holes 5 are symmetrically arranged on both sides of the first grouting hole 5, and the angles thereof are respectively -45°, 45°, -120°, and 120°.

[0059] Construction process:

[0060] The prefabricated pipe segment 1 is transported to the excavated tunnel, and multiple pipe segments 1 of the same water pipe are enclosed to form a water pipe. The first mounting protrusion of the pipe segment 1 is installed corresponding to the first mounting groove of another pipe segment 1. The first mounting groove is preset with a first water stop strip 110. Then, the first bolt 106 is inserted into two adjacent first bolt holes 105, and the first gasket 108 is sleeved on both ends of the first bolt 106. The first nut 107 is tightened at both ends of the first bolt 106. Then, the first plugging material 109 is poured into the first plugging groove, the edge of the lining layer 103 is welded, and the anti-corrosion layer 104 is coated on the concave surface of the lining layer 103. The water pipe is assembled; the second water stop is circumferentially arranged in the second mounting groove at the end of the water pipe. Strip 115, dock the second installation groove at the end of the water pipe with the second installation protrusion at the end of the other water pipe, insert the second bolt 117 into the two adjacent second bolt holes 114, sleeve the second gasket 119 at both ends of the second bolt 117 and tighten it with the second nut 120, and then seal the second plugging groove with the second plugging material 118; weld the edge of the lining layer 103; then inject the first consolidation slurry into the wall of the water pipe through the first grouting hole 5 to fix the water pipe, drill the second grouting hole 4 at the surrounding rock outside the water pipe at the first grouting hole 5, and then inject the second consolidation slurry into the second grouting hole 4 to fill the gap at the top of the water pipe, and consolidate the surrounding rock around the water pipe at the same time, and repeat several times until the construction is completed.

[0061] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0062] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A composite water pipe for a hydraulic project, comprising a plurality of sequentially connected water pipe sections, wherein the water pipe sections comprise a plurality of pipe segments (1), and two adjacent pipe segments (1) are fixedly connected, characterized in that: A reinforcement component is arranged in the pipe segment (1), a first grouting hole (5) is opened on the pipe segment (1), a first mounting protrusion and a first mounting groove are arranged on opposite sides of the pipe segment (1), the first mounting protrusion and the first mounting groove are arranged along the axial direction of the pipe segment (1), the first mounting protrusion of two adjacent pipe segments (1) are matched with the first mounting groove, a first waterproof structure is arranged between the matched first mounting protrusion and the first mounting groove, the two adjacent pipe segments (1) of the same water delivery pipe section are fixedly connected by a first connecting structure, and an inner side connecting reinforcement structure is arranged between the two adjacent pipe segments (1) of the same water delivery pipe section; The two ends of the tube segment (1) are respectively provided with a second mounting protrusion and a second mounting groove, the second mounting protrusion and the second mounting groove are both arranged along the arc direction of the tube segment (1), the second mounting protrusion and the second mounting groove of the two adjacent tube segments (1) in the two adjacent water pipe sections are matched, a second waterproof structure is arranged between the matching second mounting protrusion and the second mounting groove, the two adjacent tube segments (1) in the two adjacent water pipe sections are fixedly connected by the second connecting structure, and the inner side connecting reinforcement structure is arranged between the two adjacent tube segments (1) in the two adjacent water pipe sections.

2. A composite water pipe for water conservancy projects according to claim 1, characterized in that: The first connection structure comprises a plurality of first bolt holes (105), the plurality of first bolt holes (105) being respectively arranged on two opposite sides of the pipe segment (1), the plurality of first bolt holes (105) being arranged on one side of the pipe segment (1) being arranged at equal intervals, the first bolt holes (105) being located at one end of the concave surface of the pipe segment (1) being connected to a first blocking groove, the first blocking groove being arranged on the concave surface of the pipe segment (1), the plurality of first bolt holes (105) of two adjacent pipe segments (1) being arranged in one-to-one correspondence, a first bolt (106) being passed through the two correspondingly arranged first bolt holes (105), the end of the first bolt (106) extending into the first blocking groove and being threadedly connected with a first nut (107), a first gasket (108) being arranged between the first nut (107) and the bottom wall of the first blocking groove, the first gasket (108) being sleeved on the outside of the first bolt (106).

3. The composite water pipe for water conservancy projects according to claim 1, characterized in that: The inner connection reinforcement structure comprises an inner lining layer (103), the inner lining layer (103) being attached to the concave surface of the pipe segment (1), a plurality of studs (113) being fixedly connected to the convex surface of the inner lining layer (103), the plurality of studs (113) being distributed in an array, the studs (113) being perpendicular to the convex surface of the inner lining layer (103), and the studs (113) being buried in the pipe segment (1); A groove is provided circumferentially at the outer edge of the inner lining layer (103), the groove is close to the concave surface of the inner lining layer (103), the adjacent grooves of two adjacent inner lining layers (103) are arranged correspondingly, and the two adjacent inner lining layers (103) are welded and fixed at the grooves.

4. The composite water pipe for water conservancy projects according to claim 1, characterized in that: The inner connection reinforcement structure comprises a plurality of welding ribs (121), the welding ribs (121) being buried in the pipe segment (1); in the same water delivery pipe section, the plurality of welding ribs (121) are respectively arranged on opposite sides of the pipe segment (1); the plurality of welding ribs (121) located on the same side are arranged at equal intervals along the length direction of the pipe segment (1); the plurality of welding ribs (121) are respectively arranged at both ends of the water delivery pipe section; the plurality of welding ribs (121) located at the end of the water delivery pipe section are arranged at equal intervals along the arc direction of the pipe segment (1); an empty groove (122) is opened in the circumferential direction of the concave outer edge of the pipe segment (1); one end of the welding rib (121) extends into the empty groove (122); adjacent two welding ribs (121) of two adjacent pipe segments (1) are overlapped, and the overlapped two welding ribs (121) are fixed by welding.

5. The composite water pipe for water conservancy projects according to claim 1, characterized in that: The reinforcement assembly comprises a plurality of reinforcing transverse ribs (101) and a plurality of reinforcing longitudinal ribs (102); the reinforcing transverse ribs (101) and the reinforcing longitudinal ribs (102) are both buried in the segment (1); the reinforcing longitudinal ribs (102) are arranged along the length direction of the segment (1); the plurality of reinforcing longitudinal ribs (102) are arranged at equal intervals along the circumferential direction of the segment (1); the reinforcing transverse ribs (101) are arranged along the circumferential direction of the segment (1); and the plurality of reinforcing transverse ribs (101) are arranged at equal intervals along the length direction of the segment (1).

6. The composite water pipe for water conservancy projects according to claim 1, characterized in that: The first waterproof structure comprises a first water stop strip (110), the first water stop strip (110) being arranged at the bottom of the first installation groove, and the first water stop strip (110) being in contact with the first installation protrusion.

7. The composite water pipe for water conservancy projects according to claim 1, characterized in that: The second connection structure comprises a plurality of second bolt holes (114), the plurality of second bolt holes (114) being respectively arranged at both ends of the pipe segment (1), the plurality of second bolt holes (114) being arranged at one end of the pipe segment (1) being arranged at equal intervals, the second bolt holes (114) being arranged at one end of the concave surface of the pipe segment (1) being connected to a second plugging groove, the second plugging groove being arranged on the concave surface of the pipe segment (1), the plurality of second bolt holes (114) of two adjacent pipe segments (1) being arranged in one-to-one correspondence, a second bolt (117) being passed through the two correspondingly arranged second bolt holes (114), the end of the second bolt (117) being passed through the second plugging groove and being threadedly connected with a second nut (120), a second gasket (119) being arranged between the second nut (120) and the bottom wall of the second plugging groove, the second gasket (119) being sleeved on the outside of the second bolt (117).

8. The composite water pipe for water conservancy projects according to claim 1, characterized in that: The second waterproof structure comprises a second water stop strip (115) circumferentially arranged at the bottom of a plurality of the second mounting grooves, and the second water stop strip (115) abuts against the second mounting protrusion.

9. The composite water pipe for water conservancy projects according to claim 1, characterized in that: A first elastic pad (111) is provided between two adjacent pipe segments (1) in the same water delivery pipe section, and a second elastic pad (116) is provided between two adjacent pipe segments (1) of two adjacent water delivery pipe sections.

10. A construction process for a composite water pipe for a hydraulic project, used for the composite water pipe for a hydraulic project as claimed in any one of claims 1 to 9, characterized in that: Here are the steps: The prefabricated pipe segments (1) are transported to the excavated tunnel, the pipe segments (1) are assembled in a circular manner to form water pipe segments and fixed, the water pipe segments are sequentially connected and fixed along the length direction of the tunnel, a first consolidation slurry is injected into the wall of the water pipe through the first grouting hole (5) of the pipe segment (1) to form a stabilization layer (2), the water pipe is fixed, a hole is drilled into the surrounding rock around the water pipe at the first grouting hole (5) to obtain a second grouting hole (4), and a second consolidation slurry is injected into the second grouting hole (4) to fill the gap at the top of the water pipe, and at the same time, the surrounding rock around the water pipe is consolidated to form a consolidation layer (3), and this is repeated multiple times until the construction is completed.

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