Construction method of municipal road drainage pipeline

Abstract

The application discloses a kind of municipal road drainage pipeline construction methods, comprising the following steps:1, excavate groove;2, install support base;3, pour concrete;4, the assembly of reinforcing support and support bracket;5, between support bracket and installation base plate assembly;6, reinforcing support and groove fixation;7, install drainage pipe;8, groove backfill.The application supports and fixes multiple drainage pipes simultaneously, ensures that the multiple drainage pipes installed in parallel distribution maintain reasonable spacing, and makes the multiple drainage pipes installed without installation height difference between them, thereby effectively improving construction quality, facilitating subsequent construction operation, ensuring construction progress, and through the installation design of components at support points, the overall load-bearing capacity of support points below the drainage pipe is strong, effectively ensuring the stable support of the drainage pipe, and the components at support points will not dislocate and move, thereby effectively improving the installation stability and reliability of the drainage pipe.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of sewer construction, and particularly relates to a construction method of municipal road sewer. BACKGROUND

[0002] With the rapid development of cities, urban drainage engineering plays an important role in daily life, and as a basic drainage pipe network system of the city, a large number of drainage pipes are distributed in every corner of the city. The construction of the drainage pipe is a systematic project and is the basis and guarantee for the normal operation of the entire municipal road. Due to the increasing demand of people for the city service system, the quality of the municipal drainage pipe engineering has become the focus of attention, and the advantages and disadvantages of the engineering are related to the survival problem of the city flood control and the prevention of groundwater or soil pollution.

[0003] In the construction of the municipal drainage pipe, sometimes multiple pipes need to be laid at the same time, and in the actual construction, it is also necessary to ensure that the multiple pipes are arranged side by side, which greatly increases the construction difficulty, and when there is a large height difference between the multiple pipes, it will also affect the subsequent construction process and construction quality. SUMMARY

[0004] The present application aims at the deficiencies of the prior art and provides a construction method of municipal road sewer, which has a clever and reasonable structure design, supports and fixes multiple drainage pipes, ensures that the multiple drainage pipes installed side by side maintain a reasonable distance, and makes the multiple drainage pipes installed without installation height difference, thereby effectively improving the construction quality, facilitating the subsequent construction operation, ensuring the construction process, and through the installation design of the components at the support points, the overall bearing capacity of the support points under the drainage pipe is strong, which effectively ensures the stable support of the drainage pipe, and the components at the support points will not be dislocated and moved, thereby effectively improving the installation stability and reliability of the drainage pipe.

[0005] In order to solve the above technical problems, the present application adopts the following technical scheme:

[0006] The construction method of municipal road sewer comprises the following steps:

[0007] 1. Excavate the road surface to form a pipe installation trench, preliminarily tamp and level the trench, lay a 30-45cm fine slag layer on the bottom of the trench and tamp and level it, then lay a 15-25cm C20 concrete layer on the fine slag layer and tamp and level it, the fine slag layer and the C20 concrete layer form a bottom cushion layer, further measure and lay out, determine the support point position of the drainage pipe in the trench, and ensure that at least two support points are arranged under each drainage pipe section;

[0008] The fine pond slag layer and the C20 concrete layer are sequentially laid on the groove bottom surface to form a bottom cushion layer, the soil arching of the groove is prevented, the flatness and structural strength of the installation and placement surface of the subsequent drainage pipe are ensured, meanwhile, the installation and fixation of the components at the support points in the groove are facilitated, the drainage pipe is composed of multiple drainage pipe sections, when the support point positions are determined, it is ensured that at least two support points are arranged below each drainage pipe section, and the components are correspondingly arranged at the support points, so that the drainage pipe section is supported and fixed from at least two positions below the drainage pipe section, the stability and reliability of the drainage pipe section are effectively ensured, the design is reasonable, and the construction is convenient.

[0009] 2. A support base is arranged on the bottom cushion layer, one support base is arranged at each support point, the support base comprises a connecting bottom plate and a plurality of mounting bottom plates, the number of the mounting bottom plates corresponds to the number of the parallel arranged drainage pipes in the groove, the mounting bottom plate is provided with a through groove for the connecting bottom plate to pass through, the connecting bottom plate passes through the plurality of mounting bottom plates through the through groove, the position of the connecting bottom plate is adjusted, the threaded holes one of the connecting bottom plate and the threaded holes two of the mounting bottom plate are one-to-one corresponding, the fixing screws are screwed into the threaded holes two of the mounting bottom plate and the threaded holes one of the fixing bottom plate, the plurality of mounting bottom plates are fixedly connected into an integral whole through the connecting bottom plate, the assembled integral whole is arranged at the corresponding design position of the support point, and the bolts are arranged in the mounting holes of the mounting bottom plate to fix the mounting bottom plate and the bottom cushion layer through the bolts.

[0010] The number of the mounting bottom plates corresponds to the number of the drainage pipes, so that the subsequent multiple drainage pipes can be supported and fixed at the same time, since the mounting bottom plates are provided with multiple mounting bottom plates, if the mounting bottom plates are sequentially installed, the mounting bottom plates need to be adjusted multiple times, which leads to inconvenient construction, the mounting bottom plates are accurately positioned and connected through the connecting bottom plate in the present application, the mounting bottom plates are fixed into an integral whole, the spacing between the adjacent mounting bottom plates is adapted to the installation spacing requirement between the adjacent drainage pipes, the integral whole is installed on the bottom cushion layer, the installation and adjustment times of the mounting bottom plates are reduced, the actual installation precision of the mounting bottom plates is improved, the actual construction is facilitated, and the mounting bottom plates are used for the installation of the subsequent support base.

[0011] 3. Pouring concrete: side forms are arranged on both sides of the support base, end forms are arranged at both ends of the support base, the end forms are provided with through grooves matched with the connecting bottom plate, the end forms are slid from the end of the connecting bottom plate and moved to the side forms until the end forms abut against the side forms, at this time, the threaded holes three of the end forms and the threaded holes four of the side forms correspond one by one, then the fixing screws are screwed into the threaded holes three of the end forms and the threaded holes four of the side forms to fix the end forms and the side forms, then concrete is poured in the cavity formed between the side forms and the end forms to form a concrete base, and the side forms and the end forms are removed after the pouring of the concrete base is completed; during the pouring of the concrete, the top surface of the concrete base is flush with the top surface of the side forms and the end forms, and the height is lower than the height of the fixing sleeve of the mounting bottom plate, so as to avoid the concrete from blocking the insertion hole of the fixing sleeve and ensure that the top insertion hole of the fixing sleeve is exposed to facilitate the assembly and positioning of subsequent components;

[0012] The support base bottom is enclosed into a cavity by the cooperation of the side forms and the end forms, and the concrete base is formed by pouring concrete, so that the support base and the bottom cushion layer form a whole, effectively improving the overall structural firmness and structural bearing capacity of the support base, ensuring the stable support of the subsequent support base to the drainage pipe, and the support base will not be displaced after the pouring of the concrete, effectively improving the laying accuracy of the subsequent drainage pipe and ensuring the construction quality.

[0013] 4. Assembly between the reinforcing support and the support bracket: the bottom of the support bracket is provided with two sleeves, the sleeves are provided with internal thread segments, the support screws are screwed into the internal thread segments, the assembly composed of the support screws and the support bracket is installed between the reinforcing support, the support screws are matched with the through holes on the reinforcing support and are inserted into the reinforcing support until the sleeves abut against the reinforcing support, and then a fastening nut is screwed into the through end of the support screw to limit and fix the assembly and the reinforcing support;

[0014] The number of the support brackets corresponds to the number of the mounting bottom plates, each support bracket supports a column of drainage pipes, and two support screws are connected to each support bracket and are threadedly connected with the support bracket to ensure the assembly firmness and reliability, the assembled support screws can also realize the precise insertion and positioning between the support bracket and the reinforcing support, and the fastening nut is locked to ensure the assembly firmness, and the two support screws can also realize the precise positioning and connection between the support bracket and the mounting bottom plate, the two support screws jointly support to improve the assembly firmness between the support bracket and the mounting bottom plate, ensure the bearing capacity of the support bracket, and ensure the stable support of the support bracket to the drainage pipe.

[0015] 5. Assembly between support bracket and mounting bottom plate: a fixing nut is screwed at the bottom end of the support screw, two fixing sleeves for inserting the support screw are arranged on the mounting bottom plate, the bottom end of the support screw is inserted into the fixing sleeve of the mounting bottom plate, after being inserted in place, the support screw and the fixing sleeve are welded and fixed, then the fixing nut is turned towards the fixing sleeve until the fixing nut abuts against the end face of the fixing sleeve, and the fixing nut and the fixing sleeve are further welded and fixed;

[0016] The support screw and the fixing sleeve are matched to be precisely inserted between the corresponding support bracket and the corresponding mounting bottom plate, and the connection between the support screw and the fixing sleeve is welded and fixed to ensure the connection firmness, and a fixing nut is further provided, the fixing nut is screwed with the support screw, and the fixing nut is welded and fixed with the fixing sleeve, so that the structural firmness and the structural strength of the connection between the support screw and the fixing sleeve are effectively improved, and the overall carrying capacity is better.

[0017] 6. Fixing of reinforcing support and groove: end support angles are arranged at both ends of the reinforcing support, the side surface of the end support angle is a slope surface, the inclination angle of the slope surface is matched with the slope of the two sides of the groove, the end support angle is placed on the extension plate of the end face of the reinforcing support, the end support angle is slidably clamped in the sliding groove of the extension plate, the end support angle is moved towards the side surface of the groove until the slope surface of the end support angle abuts against the side surface of the groove, the end support angle and the extension plate are welded and fixed, and a bolt is arranged in the positioning hole in the side surface of the end support angle, the end support angle and the groove are fixed through the bolt;

[0018] Since the two sides of the groove are designed as slopes, the side surface of the end support angle is designed as a slope surface, and the slope surface is matched with the slope of the side surface of the groove, so that the contact area between the end support angle and the groove is ensured, and the installation and connection firmness between the end support angle and the groove is improved;

[0019] The end support angle and the reinforcing support are welded and fixed as a whole, and the end support angle and the groove are further fixed through the bolt, so that the reinforcing support and the groove are fixed, and the support base is further fixed as a whole with the bottom cushion layer of the bottom surface of the groove through concrete pouring, the reinforcing support and the support base are fixed with the groove, and the support bracket and the concrete base jointly support the support bracket, so that the structural strength and the structural carrying capacity of the support bracket are effectively improved, the stable support and lifting of the drainage pipe are ensured, and the construction safety and the construction quality are improved.

[0020] 7. Installation of drainage pipe: the drainage pipe section is placed on the support bracket at the corresponding support point, the corresponding interfaces of the drainage pipe sections are connected, and then a pressing member is arranged above the support bracket to limit the upper part of the drainage pipe;

[0021] After the components at each support point are installed, the installation of the drainage pipe sections is carried out in sections according to the construction requirements, at least two support points are arranged below each drainage pipe section, that is, each drainage pipe section is supported and lifted by at least two support brackets, which effectively ensures the stability of the drainage pipe section. After the drainage pipe sections are connected, the upper part of the drainage pipe section is pressed and limited by the pressing member to ensure the stability of the drainage pipe in the groove, effectively preventing the misalignment of the drainage pipe. In addition, a plurality of parallel support brackets are arranged at each support point, and the plurality of support brackets are precisely positioned, thereby ensuring the precise parallel design of the subsequent multiple drainage pipe sections and improving the construction quality and construction progress.

[0022] 8. Trench backfilling: After the drainage pipe is installed, the sealing detection is carried out, and after the detection is qualified, the trench is backfilled and compacted. After the drainage pipe is installed, the sealing detection is carried out to ensure the construction quality, and after the detection is qualified, the trench is backfilled in time to ensure the construction quality.

[0023] Further, in step 3, when the side mold plate is installed on the side of the support base, the side mold plate is provided with a clamping groove matched with the installation base plate, and the side mold plate is clamped on the installation base plate through the clamping groove. The number of clamping grooves on the side mold plate corresponds to the number of installation base plates, so that the side mold plate can be clamped on multiple installation base plates at the same time, realizing the precise positioning between the side mold plate and the support base, and facilitating the actual assembly.

[0024] Further, in step 4, the sleeve is provided with an expansion plate, the expansion plate is provided with a threaded hole five, and the reinforcing support is provided with a threaded hole six. When the sleeve abuts against the reinforcing support, the threaded hole five of the expansion plate and the threaded hole six of the reinforcing support are one-to-one corresponding. Then the fixing screw is screwed into the threaded hole five of the expansion plate and the threaded hole six of the reinforcing support to fix the expansion plate and the reinforcing support. The structure design is ingenious and reasonable. The expansion plate and the reinforcing support are connected and fixed by the fixing screw, that is, the support bracket and the reinforcing support are further fixed. At the same time, the support bracket and the reinforcing support are limited and locked by the fastening nut and the supporting screw, which effectively ensures the installation stability between the support bracket and the reinforcing support, makes the structure of the support bracket more stable and reliable, and ensures the stable support of the drainage pipe.

[0025] Further, in step 5, before the fixing nut is screwed onto the support screw, a connecting sleeve plate is sleeved between the two support screws of the same support bracket, and then the fixing nut is screwed. After the fixing nut is welded and fixed with the fixing sleeve, the position of the connecting sleeve plate is adjusted along the support screw, so that the connecting sleeve plate is located at the middle position of the exposed support screw segment between the fixing nut and the tightening nut. Then, the connecting sleeve plate and the support screw are welded and fixed after being adjusted in place. The two support screws of the same support bracket are indirectly welded and fixed through the connecting sleeve plate, effectively limiting the rotation of the support screw, making the overall structure more firm and reliable, and more effectively ensuring the stable support of the support bracket to the drain pipe.

[0026] Further, in step 6, after the end support angle and the groove are fixed, auxiliary support rods are installed below both ends of the reinforcing support. The position of the auxiliary support rod is adjusted so that the embedded blocks at the ends of the connecting bottom plate are matched and embedded into the insertion slots at one end of the auxiliary support rod, while the other end of the auxiliary support rod is in contact with the bottom surface of the reinforcing support. The auxiliary support rod and the reinforcing support, as well as the auxiliary support rod and the connecting bottom plate, are all welded and fixed. The precise positioning between the auxiliary support rod and the connecting bottom plate is achieved through the design of the embedded blocks and the insertion slots, which facilitates actual installation. One end of the auxiliary support rod is welded and fixed with the connecting bottom plate, and the other end is welded with the reinforcing support. At the same time, the connecting bottom plate is part of the concrete base, so that the reinforcing support is restrained by the concrete base, making the overall structure more firm and less prone to deformation.

[0027] Further, in step 7, before placing the drain pipe into the support bracket, the outer surface of the drain pipe is cleaned, and then a layer of corrosion-resistant layer is coated on the outer surface of the drain pipe. The design of the corrosion-resistant layer can enhance the corrosion resistance of the drain pipe and prolong the service life of the drain pipe.

[0028] Further, in step 7, the installation steps of the compression member are as follows:

[0029] (1) The compression member includes an arc-shaped support plate and an arc-shaped compression plate. The arc-shaped compression plate is arranged in the arc-shaped support plate, and the arc-shaped compression plate and the arc-shaped support plate are fixedly connected through a plurality of connecting link columns. The two ends of the arc-shaped support plate are provided with positioning rods, and the two sides of the support bracket are provided with adjusting sliding grooves. The arc-shaped compression plate and the arc-shaped support plate are connected through a plurality of connecting link columns, which effectively ensures the structural firmness and structural strength. The positioning rods cooperate with the adjusting sliding grooves to facilitate the installation and positioning of the compression member and the support bracket.

[0030] (2) The positioning rods are inserted into the adjusting sliding grooves and moved towards the drain pipe along the arc-shaped support plate until the arc-shaped compression plate is pressed against the top surface of the drain pipe. A locking nut is screwed onto the end of the positioning rod and tightened.

[0031] One or two pressing members are installed on each support bracket, which can be selected according to actual installation requirements, and the position of the pressing member on the support bracket is adjustable; when the position of the pressing member needs to be adjusted, the locking nut is loosened and the pressing member is moved along the adjusting slot until the pressing member is moved to the appropriate position, and then the locking nut is tightened; the design is ingenious, and the adjustment is convenient and simple.

[0032] The present application has the following beneficial effects due to the adoption of the above technical solutions:

[0033] The present application has the following beneficial effects due to the adoption of the above technical solutions: BRIEF DESCRIPTION OF DRAWINGS

[0034] The present application will be further described below in combination with the drawings:

[0035] Figure 1 It is a structural schematic view of the present application when the support base is installed;

[0036] Figure 2 It is a structural schematic view of the present application when the support base is installed;

[0037] Figure 3 It is a structural schematic view of the present application when the support base is installed;

[0038] Figure 4 It is a structural schematic view of the present application when the support base is installed;

[0039] Figure 5 It is a structural schematic view of the present application when the support base is installed;

[0040] Figure 6 It is a structural schematic view of the present application when the support base is installed;

[0041] Figure 7 It is a structural schematic view of the present application when the support base is installed;

[0042] Figure 8 It is a structural schematic view of the present application when the support base is installed;

[0043] Figure 9 It is a structural schematic view of the present application when the support base is installed;

[0044] Figure 10The structural schematic view of the supporting base and the reinforcing support in the installation of the present application;

[0045] Figure 11 The structural schematic view of the supporting base and the reinforcing support in the installation of the present application; Figure 10 The structural schematic view of the supporting base and the reinforcing support in the installation of the present application;

[0046] Figure 12 The structural schematic view of the supporting base and the reinforcing support in the installation of the present application;

[0047] Figure 13 The structural schematic view of the supporting base and the reinforcing support in the installation of the present application;

[0048] Figure 14 The structural schematic view of the supporting base and the reinforcing support in the installation of the present application;

[0049] Figure 15 The structural schematic view of the supporting base and the reinforcing support in the installation of the present application;

[0050] Figure 16 The structural schematic view of the supporting base and the reinforcing support in the installation of the present application;

[0051] Figure 17 The structural schematic view of the supporting base and the reinforcing support in the installation of the present application;

[0052] Figure 18 The structural schematic view of the supporting base and the reinforcing support in the installation of the present application.

[0053] In the figure: 1 - supporting base; 2 - connecting bottom plate; 3 - installation bottom plate; 4 - through groove; 5 - threaded hole one; 6 - threaded hole two; 7 - fixed screw; 8 - installation hole; 9 - side template; 10 - end template; 11 - through slot; 12 - threaded hole three; 13 - threaded hole four; 14 - concrete base; 15 - reinforcing support; 16 - supporting base; 17 - sleeve; 18 - internal threaded section; 19 - supporting screw; 20 - perforation; 21 - fastening nut; 22 - fixed nut; 23 - fixed sleeve; 24 - end support angle; 25 - inclined surface; 26 - extension plate; 27 - sliding groove; 28 - positioning hole; 29 - compression part; 30 - clamping groove; 31 - enlarged surface plate; 32 - threaded hole five; 33 - threaded hole six; 34 - connecting sleeve plate; 35 - auxiliary support rod; 36 - embedded block; 37 - insertion slot; 38 - arc-shaped support plate; 39 - arc-shaped pressing plate; 40 - connecting rod column; 41 - positioning rod; 42 - adjusting sliding groove; 43 - locking nut; 44 - bolt; 45 - drainage pipe. DETAILED DESCRIPTION

[0054] As shown in the figure, the construction method of the municipal road drainage pipeline of the present application comprises the following steps: Figures 1 to 18

[0055] ​1. The road surface is excavated to form a trench for pipe installation. The trench is initially compacted and leveled. A 30-45cm layer of fine slag is laid at the bottom of the trench and compacted and leveled. Then, a 15-25cm layer of C20 concrete is laid on the fine slag layer and compacted and leveled. The fine slag layer and the C20 concrete layer are combined to form a bottom cushion layer. Further measurement and layout are carried out to determine the support point position of the drainage pipe 45 in the trench, and to ensure that at least two support points are set under each drainage pipe section.

[0056] A layer of fine pond slag and a layer of C20 concrete are laid sequentially on the bottom surface of the trench to form a base layer, preventing the trench soil from arching upwards and ensuring the flatness and structural strength of the subsequent installation surface of the drainage pipe 45. It also facilitates the installation and fixing of components at the support points in the trench. The drainage pipe 45 is composed of multiple drainage pipe segments spliced ​​together. Therefore, when determining the support point positions, it is ensured that at least two support points are set under each drainage pipe segment. Components are then installed at the support points to support and fix the drainage pipe segment from at least two points below, effectively ensuring the stability and reliability of the drainage pipe segment. The design is reasonable and the construction is convenient.

[0057] 2. Install support base 1 on the base layer: A support base 1 is set at each support point. The support base 1 includes a connecting base plate 2 and several mounting base plates 3. The number of mounting base plates 3 corresponds to the number of rows of drainage pipes 45 arranged in parallel in the trench. The mounting base plate 3 is provided with a through groove 4 for the connecting base plate 2 to pass through. The connecting base plate 2 passes through several mounting base plates 3 through the through groove 4. Adjust the position of the connecting base plate 2 so that the threaded hole 5 of the connecting base plate 2 corresponds one-to-one with the threaded hole 6 of the mounting base plate 3. The threaded hole 6 is connected to the through groove 4. Then screw the fixing screw 7 into the threaded hole 6 of the mounting base plate 3 and the threaded hole 5 of the fixing base plate, so that several mounting base plates 3 are fixedly connected into a whole by a connecting base plate 2. Then place the assembled whole into the corresponding design position of the support point. Bolts 44 are set in the mounting holes 8 on the mounting base plate 3. The mounting holes 8 are set at the four corners of the mounting base plate 3. The mounting base plate 3 is fixed to the base layer by the bolts 44.

[0058] The number of installation bottom plates 3 corresponds to the number of rows of drain pipes 45, so that multiple drain pipes 45 can be supported and fixed at the same time subsequently, and the parallel arrangement of the multiple drain pipes 45 is ensured, the construction quality is guaranteed, and because the installation bottom plates 3 are provided in multiple, if the installation bottom plates 3 are installed one by one, the installation bottom plates 3 need to be adjusted multiple times, which leads to inconvenient construction, the present application directly uses a connecting bottom plate 2 to accurately position and connect the multiple installation bottom plates 3, and fix them as a whole, the spacing between the adjacent installation bottom plates 3 is adapted to the installation spacing requirement between the adjacent drain pipes 45, and then the whole is installed on the cushion layer, the installation adjustment frequency of the installation bottom plates 3 is reduced, the actual installation precision of the installation bottom plates 3 is improved, and the actual construction is also facilitated, and the installation bottom plates 3 are used for subsequent installation of the support seats 16.

[0059] 3. Pouring concrete: side forms 9 are arranged on both sides of the support base 1, end forms 10 are arranged at both ends of the support base 1, the end forms 10 are provided with through grooves 11 matched with the connecting bottom plate 2, the end forms 10 are slid from the end portions of the connecting bottom plate 2 and move towards the side forms 9 until the end forms 10 abut against the side forms 9, at this time, the threaded holes three 12 of the end forms 10 correspond one by one to the threaded holes four 13 of the side forms 9, then the fixing screws 7 are screwed into the threaded holes three 12 of the end forms 10 and the threaded holes four 13 of the side forms 9 to fix the end forms 10 and the side forms 9, and then concrete is poured in the cavity formed between the side forms 9 and the end forms 10 to form a concrete base 14, and after the pouring of the concrete base 14 is completed, the side forms 9 and the end forms 10 are removed; during the pouring of the concrete, the top surface of the concrete base 14 is flush with the top surfaces of the side forms 9 and the end forms 10, and the height is lower than the height of the fixing sleeve 23 of the installation bottom plate 3, so as to avoid the concrete from blocking the insertion holes of the fixing sleeve 23 and ensure that the top end insertion holes of the fixing sleeve 23 are exposed to facilitate the subsequent assembly and positioning of components;

[0060] When the side forms 9 are installed to the side surfaces of the support base 1, the side forms 9 are provided with clamping grooves 30 matched with the installation bottom plates 3, the side forms 9 are clamped on the installation bottom plates 3 through the clamping grooves 30, the structure design is ingenious and reasonable, the number of the clamping grooves 30 on the side forms 9 corresponds to the number of the installation bottom plates 3, so that the side forms 9 can be clamped on multiple installation bottom plates 3 at the same time, the accurate positioning between the side forms 9 and the support base 1 is realized, and the actual assembly is facilitated;

[0061] The support base 1 is combined with the end template 10 through the side template 9, so that a cavity is formed at the bottom of the support base 1, and then the concrete base 14 is formed by pouring concrete, so that the support base 1 is integrated with the bottom cushion layer, the overall structural firmness and the structural bearing capacity of the support base 1 are effectively improved, the stable support of the subsequent support base 1 to the drainage pipe 45 is ensured, and after the concrete is poured and fixed, the support base 1 will not be displaced, the laying accuracy of the subsequent drainage pipe 45 is effectively improved, and the construction quality is ensured.

[0062] 4. Assembly between the reinforcing support 15 and the support bracket 16: The bottom of the support bracket 16 is provided with two sleeves 17, the sleeves 17 are provided with internal thread segments 18, the support screws 19 are screwed into the internal thread segments 18, the combined assembly composed of the support screws 19 and the support bracket 16 is installed between the reinforcing support 15, the support screws 19 are matched with the through holes 20 on the reinforcing support 15, until the sleeves 17 abut against the reinforcing support 15, then a fastening nut 21 is screwed into the through end of the support screw 19, and the fastening nut 21 is tightened to limit and fix the combined assembly and the reinforcing support 15;

[0063] The sleeves 17 are provided with expansion plates 31, the expansion plates 31 are provided with threaded holes five 32, the reinforcing support 15 is provided with threaded holes six 33, when the sleeves 17 abut against the reinforcing support 15, the threaded holes five 32 of the expansion plates 31 and the threaded holes six 33 of the reinforcing support 15 are one-to-one corresponding, then the fixing screws 7 are screwed into the threaded holes five 32 of the expansion plates 31 and the threaded holes six 33 of the reinforcing support 15, the expansion plates 31 and the reinforcing support 15 are fixed, the structure design is ingenious and reasonable, the expansion plates 31 and the reinforcing support 15 are connected and fixed through the fixing screws 7, that is, the support bracket 16 and the reinforcing support 15 are further fixed, and at the same time, the support bracket 16 and the reinforcing support 15 are limited and locked through the fastening nut 21 and the support screw 19, so that the installation firmness between the support bracket 16 and the reinforcing support 15 is effectively ensured, the structure of the support bracket 16 is more stable and reliable, and the stable support to the drainage pipe 45 is ensured;

[0064] The design number of the support seat 16 corresponds to the number of the mounting bottom plate 3, each support seat 16 supports a row of drain pipes 45, and two support screws 19 are connected to each support seat 16. The support screw 19 is screwed with the support seat 16 to ensure the assembly firmness and reliability. The assembled support screw 19 can also realize the precise insertion limiting between the support seat 16 and the reinforcing support 15. The tightening nut 21 is locked to ensure the mounting firmness. The subsequent two support screws 19 can realize the precise positioning connection between the support seat 16 and the mounting bottom plate 3. The two support screws 19 support each other to improve the assembly firmness between the subsequent support seat 16 and the mounting bottom plate 3, ensure the bearing capacity of the support seat 16, and ensure the stable support of the support seat 16 to the drain pipe 45.

[0065] 5. Assembly between the support seat 16 and the mounting bottom plate 3: a fixed nut 23 is screwed into the bottom end of the support screw 19. Two fixed sleeves 23 for inserting the support screw 19 are arranged on the mounting bottom plate 3. The bottom end of the support screw 19 is inserted into the fixed sleeve 23 of the mounting bottom plate 3. After insertion, the support screw 19 and the fixed sleeve 23 are welded and fixed. Then, the fixed nut 23 is turned towards the fixed sleeve 23 until the fixed nut 23 abuts against the end face of the fixed sleeve 23. The fixed nut 23 and the fixed sleeve 23 are further welded and fixed. Before the fixed nut 23 is screwed into the support screw 19, a connecting sleeve plate 34 is arranged between the two support screws 19 of the same support seat 16. After the fixed nut 23 and the fixed sleeve 23 are welded and fixed, the position of the connecting sleeve plate 34 is adjusted along the support screw 19 so that the connecting sleeve plate 34 is located at the middle position of the exposed part of the support screw 19 between the fixed nut 23 and the tightening nut 21. The connecting sleeve plate 34 and the support screw 19 are welded and fixed after adjustment. The two support screws 19 of the same support seat 16 are indirectly welded and fixed through the connecting sleeve plate 34, which effectively limits the rotation of the support screw 19, makes the overall structure more firm and reliable, and better ensures the stable support of the support seat 16 to the drain pipe 45.

[0066] The support screw 19 and the fixed sleeve 23 are matched to realize the precise insertion between the corresponding support seat 16 and the corresponding mounting bottom plate 3. The connection between the support screw 19 and the fixed sleeve 23 is welded and fixed to ensure the connection firmness. In addition, a fixed nut 23 is provided, which is screwed with the support screw 19 and is welded and fixed with the fixed sleeve 23. Thus, the structural firmness and strength of the connection between the support screw 19 and the fixed sleeve 23 are effectively improved, and the overall bearing capacity is better.

[0067] 6. Fixing the reinforcement bracket 15 to the trench: Install end support angles 24 at both ends of the reinforcement bracket 15. The side of the end support angle 24 is a slope 25. The inclination angle of the slope 25 matches the slope of both sides of the trench. Place the end support angle 24 on the extension plate 26 on the end face of the reinforcement bracket 15. The end support angle 24 is slidably engaged in the sliding groove 27 of the extension plate 26. Move the end support angle 24 to the side of the trench until the slope 25 of the end support angle 24 abuts against the side of the trench. Weld the end support angle 24 to the extension plate 26 for fixation. Then, install bolts 44 in the positioning holes 28 on the side of the end support angle 24. Fix the end support angle 24 to the trench with bolts 44.

[0068] After the end bracket 24 is fixed to the groove, auxiliary support rods 35 are installed below both ends of the reinforcing bracket 15. The position of the auxiliary support rods 35 is adjusted so that the insert block 36 at the end of the connecting base plate 2 is matched and embedded into the slot 37 at one end of the auxiliary support rod 35. At this time, the other end of the auxiliary support rod 35 contacts the bottom surface of the reinforcing bracket 15. The auxiliary support rod 35 is welded and fixed to the reinforcing bracket 15 and to the connecting base plate 2. The design of the insert block 36 and the slot 37 realizes the precise positioning between the auxiliary support rod 35 and the connecting base plate 2, which facilitates the actual installation. One end of the auxiliary support rod 35 is welded and fixed to the connecting base plate 2, and the other end is welded to the reinforcing bracket 15. At the same time, the connecting base plate 2 is also part of the concrete base 14, so that the reinforcing bracket 15 will be restrained by the concrete base 14, making the overall structure more solid and less prone to deformation.

[0069] Since the trench is sloped on both sides, the side of the end support 24 is designed as a slope 25, and the slope 25 is adapted to the slope of the trench side, ensuring the contact area between the end support 24 and the trench and improving the installation connection between the end support 24 and the trench.

[0070] The end support 24 is welded and fixed to the reinforcing bracket 15 to form a whole. At the same time, the end support 24 is fixed to the trench by bolts 44, thereby fixing the reinforcing bracket 15 to the trench. Meanwhile, the support base 1 is fixed to the bottom pad layer of the trench by concrete pouring to form a whole. Both the reinforcing bracket 15 and the support base 1 are fixed to the trench. The reinforcing bracket 15 and the concrete base 14 jointly support and fix the support bracket 16, effectively improving the structural strength and structural bearing capacity of the support bracket 16, ensuring stable support for the drainage pipe 45, and improving construction safety and construction quality.

[0071] 7, Install the drain pipe 45: place the drain pipe section on the support bracket 16 at the corresponding support point, then connect the drain pipe section with the corresponding interface of the drain pipe section, and then install the pressing piece 29 above the support bracket 16, which limits the upper part of the drain pipe 45; before placing the drain pipe 45 on the support bracket 16, clean the outer surface of the drain pipe 45, and then coat a layer of corrosion-resistant layer on the outer surface of the drain pipe 45. The design of the corrosion-resistant layer can enhance the corrosion resistance of the drain pipe 45 and prolong the service life of the drain pipe 45;

[0072] The installation steps of the pressing piece 29 are as follows:

[0073] (1) The pressing piece 29 includes an arc-shaped support plate 38 and an arc-shaped pressing plate 39. The arc-shaped pressing plate 39 is arranged in the arc-shaped support plate 38, and the arc-shaped pressing plate 39 and the arc-shaped support plate 38 are fixedly connected through a plurality of connecting rod columns 40. The two ends of the arc-shaped support plate 38 are provided with positioning rods 41, and the two sides of the support bracket 16 are provided with adjusting sliding grooves 42. The arc-shaped pressing plate 39 is connected with the arc-shaped support plate 38 through a plurality of connecting rod columns 40, which effectively ensures the structural firmness and structural strength. The positioning rod 41 cooperates with the adjusting sliding groove 42 to facilitate the installation and positioning between the pressing piece 29 and the support bracket 16.

[0074] (2) The positioning rod 41 is inserted into the adjusting sliding groove 42, and the arc-shaped support plate 38 is moved towards the drain pipe 45 until the arc-shaped pressing plate 39 is pressed against the top surface of the drain pipe 45. The locking nut 43 is screwed into the through end of the positioning rod 41 and tightened.

[0075] One to two pressing pieces 29 are installed on each support bracket 16, which can be selected according to actual installation needs, and the position of the pressing piece 29 on the support bracket 16 is adjustable. When the position of the pressing piece 29 needs to be adjusted, the locking nut 43 is loosened and the pressing piece 29 is moved along the adjusting sliding groove 42 until the pressing piece 29 is moved to the appropriate position, and then the locking nut 43 is tightened. The design is ingenious, and the adjustment is convenient and simple. The length of the positioning rod 41 protruding out of the adjusting sliding groove 42 allows the pressing piece 29 to be suitable for pressing and limiting drain pipes of different diameters, thereby expanding the application range.

[0076] After the components at each support point are installed, the installation of the drainage pipe sections is carried out in sections according to the construction requirements, at least two support points are arranged below each drainage pipe section, that is, each drainage pipe section is supported and lifted by at least two support holders 16, which effectively ensures stability, then after the drainage pipe sections are butted together, the upper drainage pipe sections are pressed and positioned by the pressing members 29, which ensures the stability of the drainage pipes 45 in the groove, effectively preventing the drainage pipes 45 from being misaligned, and each support point is simultaneously provided with a plurality of parallelly arranged support holders 16 which are accurately positioned, thereby ensuring the accurate parallel design of the subsequent multiple rows of drainage pipe sections and improving the construction quality and construction progress.

[0077] 8. Trench backfilling: The installed drainage pipes 45 are subjected to sealing detection, and after the detection is qualified, the trench is backfilled and compacted, after the drainage pipes 45 are laid, sealing detection is carried out to ensure the construction quality, and after the detection is qualified, the trench is backfilled in time to ensure the construction quality.

[0078] The above is only a specific embodiment of the present application, but the technical features of the present application are not limited thereto. Any simple change, equivalent replacement or modification made on the basis of the present application to achieve basically the same technical effect is covered by the protection scope of the present application.

Claims

1. A method of constructing a municipal road drainage conduit, characterised by: It comprises the following steps: (1) The pipeline installation trench is formed by excavating the road surface, the trench is preliminarily rammed and leveled, a 30-45cm fine slag layer is laid on the bottom of the trench and rammed and leveled, then a 15-25cm C20 concrete layer is laid on the fine slag layer and rammed and leveled, the fine slag layer and the C20 concrete layer form a bottom cushion layer, further measurement and line laying are performed to determine the support point positions of the drainage pipes in the trench and ensure that at least two support points are arranged below each drainage pipe section; (2) The support base is installed on the bottom cushion layer: one support base is arranged at each support point, the support base comprises a connecting bottom plate and a plurality of installation bottom plates, the number of the installation bottom plates corresponds to the number of the parallelly arranged drainage pipes in the trench, the installation bottom plate is provided with a through groove for the connecting bottom plate to pass through, the connecting bottom plate passes through the plurality of installation bottom plates through the through groove, the position of the connecting bottom plate is adjusted so that the threaded holes one of the connecting bottom plate and the threaded holes two of the installation bottom plate correspond to each other, then the fixing screws are screwed into the threaded holes two of the installation bottom plate and the threaded holes one of the fixing bottom plate, so that the plurality of installation bottom plates are fixedly connected into a whole through the connecting bottom plate, then the assembled whole is placed at the corresponding designed position of the support point, and the bolts are arranged in the mounting holes of the installation bottom plate to fix the installation bottom plate and the bottom cushion layer through the bolts; (3) Pouring concrete: side formworks are arranged on both sides of the support base, end formworks are arranged at both ends of the support base, the end formworks are provided with through grooves matched with the connecting bottom plate, the end formworks are slid from the end of the connecting bottom plate and moved towards the side formworks until the end formworks abut against the side formworks, at this time, the threaded holes three of the end formworks and the threaded holes four of the side formworks correspond to each other, then the fixing screws are screwed into the threaded holes three of the end formworks and the threaded holes four of the side formworks to fix the end formworks and the side formworks, then the concrete is poured in the cavity formed between the side formworks and the end formworks to form a concrete base, and the side formworks and the end formworks are removed after the pouring of the concrete base is completed; (4) Assembly between the reinforcing support and the support bracket: the bottom of the support bracket is provided with two sleeves, the sleeves are provided with internal thread sections, the support screws are screwed into the internal thread sections, the assembly composed of the support screws and the support bracket is installed between the reinforcing support, the support screws match the through holes of the reinforcing support and pass through the through holes until the sleeves abut against the reinforcing support, then a fastening nut is screwed into the through end of the support screw, and the fastening nut is tightened to limit and fix the assembly and the reinforcing support; (5) Assembly between the support bracket and the concrete support base: a fixing nut is screwed into the bottom end of the support screw, the installation bottom plate is provided with two fixing sleeves for the insertion of the support screw, the bottom end of the support screw is inserted into the fixing sleeves of the installation bottom plate, the support screw and the fixing sleeves are welded and fixed after the insertion is completed, then the fixing nut is turned towards the fixing sleeve until the fixing nut abuts against the end face of the fixing sleeve, and the fixing nut and the fixing sleeve are further welded and fixed. (6), the fixed of the reinforcing support and the groove: installing end support angle on both ends of the reinforcing support, the side surface of the end support angle is bevel, the inclination angle of the bevel matches the slope of both sides of the groove, placing the end support angle on the extension plate of the end surface of the reinforcing support, the end support angle is just slidingly connected in the sliding groove of the extension plate, moving the end support angle to the side surface of the groove until the bevel of the end support angle abuts against the side surface of the groove, welding the end support angle and the extension plate, then setting bolts in the positioning hole of the side surface of the end support angle, fixing the end support angle and the groove through the bolts; (7), installing the drain pipe: placing the drain pipe section on the support bracket at the corresponding support point, then connecting the drain pipe section and the corresponding interface of the drain pipe section, then installing the pressing part above the support bracket, limiting the upper part of the drain pipe through the pressing part; the installation steps of the pressing part are as follows: The pressing part comprises an arc-shaped support plate and an arc-shaped pressing plate, the arc-shaped pressing plate is arranged in the arc-shaped support plate, the arc-shaped pressing plate and the arc-shaped support plate are fixedly connected through a plurality of connecting rod columns, the both ends of the arc-shaped support plate are provided with positioning rods, and the both sides of the support bracket are provided with adjusting sliding grooves; threading the positioning rods into the adjusting sliding grooves and moving the arc-shaped support plate to the drain pipe until the arc-shaped pressing plate abuts against and presses the top surface of the drain pipe, and then rotating a locking nut into the threaded end of the positioning rod and tightening the locking nut; (8), backfilling the groove: sealing detection is performed on the installed drain pipe, and the groove is backfilled and tamped after the detection is qualified.

2. The method of constructing a municipal road drainage conduit according to claim 1, characterized in that: In the step (3), when the side mold plate is installed to the side surface of the support base, the side mold plate is provided with a clamping groove matched with the installation base plate, and the side mold plate is clamped on the installation base plate through the clamping groove.

3. The method of claim 1, wherein: In the step (4), the sleeve is provided with an enlarged plate, the enlarged plate is provided with a threaded hole five, the reinforcing support is provided with a threaded hole six, when the sleeve abuts against the reinforcing support, the threaded hole five of the enlarged plate and the threaded hole six of the reinforcing support are one-to-one corresponding, and then the fixing screw is screwed into the threaded hole five of the enlarged plate and the threaded hole six of the reinforcing support to fix the enlarged plate and the reinforcing support.

4. The method of claim 1, wherein: In the step (5), before the fixing nut is screwed into the support screw, a connecting sleeve plate is sleeved between the two support screws of the same support bracket, and then the fixing nut is screwed, after the fixing nut and the fixing sleeve are welded and fixed, the position of the connecting sleeve plate is adjusted along the support screw, so that the connecting sleeve plate is located at the middle position of the exposed support screw segment between the fixing nut and the fixing nut, and then the connecting sleeve plate and the support screw are welded and fixed after being adjusted to the position.

5. The method of constructing a municipal road drainage conduit according to claim 1, wherein: In the step (6), after the end support angle is fixed with the groove, auxiliary support rods are installed below both ends of the reinforcing support, the position of the auxiliary support rod is adjusted, so that the embedded block at the end of the connecting base plate is matched and embedded into the insertion slot at one end of the auxiliary support rod, and at this time, the other end of the auxiliary support rod contacts the bottom surface of the reinforcing support, and the auxiliary support rod and the reinforcing support and the auxiliary support rod and the connecting base plate are welded and fixed.

6. The method of constructing a municipal road drainage conduit according to claim 1, wherein: In the step (7), before the drain pipe is placed on the support bracket, the outer surface of the drain pipe is cleaned, and then a layer of corrosion-resistant layer is coated on the outer surface of the drain pipe.

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