Water supply pipeline fixing structure in valley riverbed

Abstract

The utility model provides a water supply pipeline fixing structure in a valley riverbed, which is characterized in that an anti-undermining layer is poured at the hard bottom of the riverbed or the deep part of the bottom of the valley, the anti-undermining layer and an encapsulation layer on the anti-undermining layer form a stable layer, a pipeline assembly consisting of a mounting frame and a water supply pipeline is wrapped in the stable layer, and anchor rod assemblies are arranged on two sides and above the pipeline assembly; by arranging the bottom of the anti-undermining layer, it is guaranteed that the stable layer is not impacted by river water to generate displacement, pipeline breakage caused by insufficient supporting of the bottom of the water supply pipeline is avoided, and the water supply pipeline can be fixedly installed under the condition that a sandy soil layer on rocks in a riverbed or a valley is thin; by arranging the mounting frame, the water supply pipeline can be completely wrapped in the stable layer, and a buffer space exists; through the two sets of vertical anchor rods penetrating into the mid-weathered rocks and the horizontal anchor rods penetrating into the riverbed side slope, the integrally borne river water impact load can be transmitted to the mid-weathered rocks and the riverbed side slope, and the flood impact resistance is improved; and finally, the stability, the safety, the sealing performance and the durability of the water supply pipeline are ensured.

Description

Technical Field

[0001] This utility model belongs to the field of long-distance water supply technology in civil engineering, specifically relating to a fixed structure for water supply pipelines in valley riverbeds. Background Technology

[0002] The installation of water supply pipelines across rivers is an important technology in water conservancy and hydropower engineering construction, involving river management, water resource utilization, and environmental protection. Specifically, it refers to burying water supply pipelines at the bottom of riverbeds to transport water resources or discharge wastewater, which can effectively solve traffic problems on both sides of the river, improve water resource utilization, and protect the environment. Currently, underwater trenching and immersed pipe construction is the most common construction method for water supply pipeline installation across rivers. However, most riverbeds are winding and have uneven distribution of sand and rock, making it difficult to find a suitable location for construction. Furthermore, simply excavating trenches, placing the pipeline, and then backfilling it with soil cannot prevent the water supply pipeline from shifting or being damaged by river erosion or floods during the flood season, and cannot ensure the stability, safety, sealing, and durability of the water supply pipeline.

[0003] In response to the aforementioned phenomena and problems, in-depth research was conducted, and a fixed structure for water supply pipelines in valley riverbeds was proposed to solve the problem of ineffective pipe burial under difficult conditions of axial load, river impact, and scouring. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a water supply pipeline fixing structure in a valley riverbed. The structure is cast and covered with multiple layers of stabilizing material, combined with anchor bolts pre-set in multiple directions, which increases the tensile and compressive strength of the structure to resist the impact of the river and ensure that the water supply pipeline is not damaged and can be used normally.

[0005] To achieve the above objectives, this utility model provides a water supply pipeline fixing structure in a valley riverbed, which is installed on the riverbed and includes a pipeline assembly, a stabilizing layer, and an anchor bolt assembly. The stabilizing layer includes, from top to bottom, an encapsulation layer and an anti-scouring layer. Both the encapsulation layer and the anti-scouring layer have a certain thickness, and the bottom of the anti-scouring layer is deeply embedded in the hard bottom of the riverbed. The bottom of the pipeline assembly is fixed in the anti-scouring layer, and its main body is encapsulated in the encapsulation layer. The anchor bolt assembly includes two sets of vertical anchor bolts and one set of horizontal anchor bolts. The two sets of vertical anchor bolts are located on both sides of the pipeline assembly, and their tail ends extend through the anti-scouring layer into the moderately weathered rock below the hard bottom of the riverbed. The horizontal anchor bolt is located above the pipeline assembly, and its tail end extends through the encapsulation layer into the depth of the riverbed slope. The heads of the two sets of vertical anchor bolts and the horizontal anchor bolt are all located in the encapsulation layer, and the heads of the two sets of vertical anchor bolts are vertically connected to the horizontal anchor bolt.

[0006] Preferably, both the vertical anchor rod and the horizontal anchor rod include a short bar, several longitudinal bars surrounding the outside of the short bar, and several centering supports radially arranged around the short bar.

[0007] Preferably, a grouting pipe is provided between the longitudinal reinforcement of one vertical anchor rod and a pair of intermediate supports of the vertical anchor rod and the horizontal anchor rod located deep in the riverbed slope, and the outer side of the vertical anchor rod located in the moderately weathered rock and the outer side of the horizontal anchor rod located deep in the riverbed slope are both wrapped with high-pressure grouting material.

[0008] Preferably, the leading ends of a group of vertical anchors located away from the horizontal anchor are connected to the leading ends of the horizontal anchor.

[0009] Preferably, both the encapsulation layer and the anti-scouring layer are concrete layers, and the side of the encapsulation layer and the anti-scouring layer away from the riverbed slope has a certain slope.

[0010] Preferably, the pipe assembly includes a mounting bracket and a water supply pipe disposed on the mounting bracket.

[0011] Preferably, the mounting frame includes two sets of support columns fixed within the anti-cavitation layer, a placement platform on the support columns, and a protective cover covering the placement platform.

[0012] Preferably, the inner side of the protective cover is filled with an elastic cushioning element.

[0013] Preferably, the water supply pipeline is installed on the placement platform, specifically including a plurality of high-density polyethylene pipelines, which are connected by welding using a hot-melt butt welding machine.

[0014] Compared to existing technologies, the advantages of this utility model are as follows: This utility model provides a water supply pipeline fixing structure in a valley riverbed. Addressing the problems of axial loads, river impact, and scouring encountered in riverbeds and valleys with uneven distribution of sand and rock and mostly meandering course, this invention involves casting an anti-scouring layer at a deeper level in the hardened riverbed after silt removal or at the bottom of the valley. This, along with a subsequent encapsulation layer, forms a stable layer providing stability and safety for the water supply pipeline. A pipeline assembly consisting of a mounting frame and the water supply pipeline is fixed between the anti-scouring layer and the encapsulation layer. Anchor bolt assemblies, consisting of multiple sets of anchor bolts in different directions, are installed on both sides and above the pipeline assembly. Through the anti-scouring layer and the encapsulation layer, a stable layer is formed for the water supply pipeline. The deep placement of the scour layer at the bottom ensures that the stabilizing layer is not displaced by the impact of river water, and also prevents the water supply pipeline from breaking due to insufficient support at the bottom. This structure can also be used for fixed installation even when the sand layer on the rock in the riverbed or valley is thin. The installation frame can better house the water supply pipeline, making it completely wrapped within the stabilizing layer while providing a certain buffer space. Two sets of vertical anchors that penetrate into the moderately weathered rock and horizontal anchors that penetrate into the riverbed slope can transfer the overall impact load of the river water to the moderately weathered rock and the riverbed slope through the anchors, improving the flood impact resistance. Ultimately, this ensures the stability, safety, sealing, and durability of the water supply pipeline. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a water supply pipeline fixing structure in a valley riverbed according to the present invention;

[0016] Figure 2 This is a schematic diagram of the anchor bolt assembly of this utility model.

[0017] In the diagram: 11-Water supply pipe, 12-Support column, 13-Placement platform, 14-Protective cover, 15-Elastic buffer, 21-Encapsulation layer, 22-Anti-scouring layer, 31-Vertical anchor, 32-Horizontal anchor, 33-Short reinforcement, 34-Longitudinal reinforcement of the rod body, 35-Centering bracket, 36-Grouting pipe, 37-Vertical installation hole, 38-Horizontal installation hole, 39-High-pressure grouting body, 41-Riverbed, 42-Riverbed slope. Detailed Implementation

[0018] To provide a more detailed description of this utility model, the following description is provided in conjunction with the accompanying drawings. It should be noted that the embodiments described below are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0019] See Figure 1This embodiment provides a water supply pipeline fixing structure in a valley riverbed, which is set on the riverbed 41 and includes a pipeline assembly, a stabilizing layer and an anchor bolt assembly.

[0020] The pipe assembly includes a mounting frame and a water supply pipe 11. The mounting frame includes two sets of support columns 12, a placement platform 13, and a protective cover 14. The two sets of support columns 12 are fixed inside the anti-cavitation layer 22 and are located on top of the anti-cavitation layer 22. The placement platform 13 is fixedly located above the support columns 12 and is used to place the water supply pipe 11. The protective cover 14 covers the placement platform 13 and completely covers the water supply pipe 11. Its outer side is covered by the encapsulation layer 21, and its inner side is filled with an elastic buffer 15. The elastic buffer 15 has an arc-shaped cross-section at the contact point with the water supply pipe 11. It is mainly used to share the pressure of the water supply pipe 11 and provide deformation space for the water and various parts of the structure under different temperatures and pressures, so as to ensure the sealing of the water supply pipe 11. In this embodiment, two water supply pipes 11 are provided on the placement platform 13. Each water supply pipe 11 includes several high-density polyethylene pipes. The high-density polyethylene pipes are connected by welding through a hot melt butt welding machine. The hot melt butt welding machine is a PE pipe hot melt butt welding machine.

[0021] The stabilizing layer includes an encapsulation layer 21 and an anti-scouring layer 22. Both the encapsulation layer 21 and the anti-scouring layer 22 are formed by concrete pouring and have a certain thickness. In this embodiment, the encapsulation layer 21 is placed on top of the anti-scouring layer 22, completely covering the pipe assembly to protect it from direct impact by river water or floods. The pipe assembly is fixed at the upper end of the anti-scouring layer 22, and its bottom extends 1 meter below the hard bottom of the cleared silt riverbed 41. Its cross-section can be rectangular to provide a stable foundation for the water supply pipe 11, preventing the pipe assembly above it from being scoured under the pressure of river water or other factors after excavation. In the event of pipe subsidence and cracking on the riverbed 41, the anti-scouring layer 22 is designed to prevent the water supply pipe 11 from breaking after scouring. Furthermore, under different construction conditions, the positional relationship between the bottom of the anti-scouring layer 22 and the hard bottom of the riverbed 41 or valley can be adjusted according to the actual conditions of the riverbed 41 or valley. Its bottom cross-section can also be adjusted to a trapezoidal shape as required. Moreover, the encapsulation layer 21 and the anti-scouring layer 22 have a continuous slope on the side away from the riverbed slope 42, and the angle between their slopes and the horizontal plane is consistent with the angle between the riverbed slope 42 and the horizontal plane, ensuring that the encapsulation layer 21 and the anti-scouring layer 22 are not displaced by the impact of river water, ultimately ensuring the stability and safety of the water supply pipe 11.

[0022] See Figure 1 and Figure 2The anchor bolt assembly includes a vertical anchor bolt 31 and a horizontal anchor bolt 32. Both the vertical anchor bolt 31 and the horizontal anchor bolt 32 include a short reinforcing bar 33, several longitudinal reinforcing bars 34, several centering supports 35, and a grouting pipe 36. With the short reinforcing bar 33 as the center, the longitudinal reinforcing bars 34 and the centering supports 35 are arranged radially around its outer side. The grouting pipe 36 is positioned between one of the longitudinal reinforcing bars 34 and one pair of centering supports 35. In this embodiment, the vertical anchor bolt 31 is provided with two sets, left and right. The horizontal anchor bolts 32 are provided in a set. On the anti-scouring layer 22 on both sides of the mounting frame and the moderately weathered rock below it, and on the encapsulation layer 21 above the mounting frame and deep within the riverbed slope 42 on the side away from the river water, vertical and horizontal drilling are performed using the hydraulic anchor bolt machine to obtain two sets of vertical installation holes 37 and one set of horizontal installation holes 38. The two sets of vertical anchor bolts 31 are installed on both sides of the mounting frame through the two sets of vertical installation holes 37, with their tail ends penetrating the anti-scouring layer 22 and extending deep into the moderately weathered rock below the hard bottom of the riverbed 41. The horizontal anchor bolts 32 are installed above the mounting frame through one set of horizontal installation holes 38, with their tail ends penetrating the encapsulation layer 21 and extending deep into the riverbed slope 42. After installation, high-pressure grout 39 is injected into the vertical installation holes 37 and horizontal installation holes 38 through the grouting pipe 36, so that the vertical anchor bolts 31 and horizontal anchor bolts 32 are wrapped and fixed by the high-pressure grout 39. The heads of both sets of vertical anchor bolts 31 and horizontal anchor bolts 32 are located within the encapsulation layer 21. The head of one set of vertical anchor bolts 31, which is farther from the horizontal anchor bolt 32, is connected to the head of the horizontal anchor bolt 32. The head of the other set of vertical anchor bolts 31 is vertically connected to the body of the horizontal anchor bolt 32. The anchor bolt assembly resists the impact of the river on the pipeline assembly and its outer stabilization layer structure, and transfers the load to the rock or foundation, ultimately ensuring the durability of the water supply pipeline 11.

[0023] In this embodiment, the above is merely an example and is not intended to limit the scope of protection of this application.

[0024] This utility model provides a water supply pipeline fixing structure in a valley riverbed. Addressing the challenges of axial loads, river impact, and scouring in riverbeds and valleys with uneven distribution of sand and rock and mostly meandering course, the structure involves casting an anti-scouring layer at a deeper level in the hardened riverbed after silt removal or at the bottom of the valley. This layer, along with a subsequent encapsulation layer, forms a stable and secure layer for the water supply pipeline. A pipeline assembly consisting of a mounting frame and the water supply pipeline is fixed between the anti-scouring layer and the encapsulation layer. Anchor bolt assemblies, composed of multiple sets of anchor bolts in different directions, are installed on both sides and above the pipeline assembly. The structure extends deep into the bottom of the anti-scouring layer. This structure ensures the stabilizing layer is not displaced by river water impacts and protects the water supply pipeline from breakage due to insufficient bottom support. It can also be installed securely even in riverbeds or valleys with thin sand layers on rock. The mounting frame allows for better placement of the water supply pipeline, completely encasing it within the stabilizing layer while providing a buffer space. Two sets of vertical anchors extending into the moderately weathered rock and horizontal anchors extending into the riverbed slope transfer the overall river water impact load to the moderately weathered rock and riverbed slope, improving flood resistance. Ultimately, this ensures the stability, safety, sealing, and durability of the water supply pipeline.

[0025] The embodiments disclosed above are only for detailed description of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, simple improvements and changes made in accordance with the claims of the present utility model are still within the scope of protection of the present utility model.

[0026] The scope of protection of this utility model shall be determined by the defined scope. For those skilled in the art, various improvements and modifications can be made without departing from the spirit and scope of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A water supply pipe fixing structure in a valley riverbed, provided on the riverbed, characterized by, The system includes a pipe assembly, a stabilizing layer, and an anchor bolt assembly. The stabilizing layer, from top to bottom, comprises an encapsulation layer and an anti-scouring layer, both of which have a certain thickness. The bottom of the anti-scouring layer is deeply embedded within the hard bottom of the riverbed. The bottom of the pipe assembly is fixed within the anti-scouring layer, and its main body is encapsulated within the encapsulation layer. The anchor bolt assembly includes two sets of vertical anchor bolts and one set of horizontal anchor bolts. The two sets of vertical anchor bolts are located on both sides of the pipe assembly, with their tail ends penetrating the anti-scouring layer and extending into the moderately weathered rock below the hard bottom of the riverbed. The horizontal anchor bolt is located above the pipe assembly, with its tail end penetrating the encapsulation layer and extending deep into the riverbed slope. The heads of both the two sets of vertical anchor bolts and the horizontal anchor bolt are located within the encapsulation layer, and the heads of the two sets of vertical anchor bolts are vertically connected to the horizontal anchor bolt.

2. A water supply pipe fixing structure in a valley riverbed according to claim 1, characterized by, Both the vertical and horizontal anchor rods include a short rib, several longitudinal ribs surrounding the outside of the short rib, and several centering supports radially arranged around the short rib.

3. A water supply pipe fixing structure in a valley riverbed according to claim 2, characterized by, A grouting pipe is installed between the longitudinal reinforcement of one vertical anchor rod and a pair of intermediate supports of the vertical anchor rod and the horizontal anchor rod located deep in the riverbed slope. The outer side of the vertical anchor rod located in the moderately weathered rock and the outer side of the horizontal anchor rod located deep in the riverbed slope are both wrapped with high-pressure grouting material.

4. A water supply pipe fixing structure in a valley riverbed according to claim 3, characterized by, The first end of a set of vertical anchors, located away from the horizontal anchor, is connected to the first end of the horizontal anchor.

5. A structure for securing a water supply pipe in a valley bed according to claim 1, wherein Both the encapsulation layer and the anti-scouring layer are concrete layers, and the side of the encapsulation layer and the anti-scouring layer away from the riverbed slope has a certain slope.

6. A structure for securing a water supply pipe in a valley bed according to claim 1, wherein The piping assembly includes a mounting bracket and a water supply pipe mounted on the mounting bracket.

7. A water supply pipe fixing structure in a valley riverbed according to claim 6, wherein The mounting frame includes two sets of support columns fixed within the anti-cavitation layer, a placement platform on the support columns, and a protective cover covering the placement platform.

8. A water supply pipe fixing structure in a valley riverbed according to claim 7, characterized by, The inner side of the protective cover is filled with an elastic cushioning element.

9. A water supply pipe fixing structure in a valley riverbed according to claim 8, characterized by, The water supply pipeline is installed on the placement platform and specifically includes several high-density polyethylene pipes, which are connected by welding using a hot-melt butt welding machine.

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