Construction method for water supply and sewage pipelines capable of preventing sedimentation

Abstract

The invention provides a water supply and sewage pipeline construction method capable of preventing sedimentation, which comprises the steps of providing an excavation space with a certain depth and area underground and installing a grid structure along the inner surface of the excavation space, and comprises the following steps: arranging a drainage active layer along the upper surface of the grid structure, and placing a water supply and drainage pipeline and a sewage pipeline at the bottom of the excavation space; and a soil layer is laid in the excavation space and at the height of the water supply and drainage pipeline and the sewage pipeline, and the method comprises the steps of supporting a load by installing trapezoidal supporting blocks in a crossed mode so as to prevent the load from settling into the soil layer and laying a ground layer through the supporting blocks.

Description

Technical Field

[0001] Embodiments of this disclosure relate to a method for constructing water supply and sewage pipelines capable of preventing subsidence. Background Technology

[0002] Generally, water pipes that supply water to factories, residences, and various facilities, as well as sewer pipes that transport used wastewater to remote wastewater treatment facilities, are buried underground to ensure above-ground space and beautify the living environment.

[0003] In addition, concrete pipes (Hume pipes) made of concrete are widely used for water supply and sewage pipelines. These pipes are structures consisting of multiple water supply and sewage pipes to supply water and sewage over long distances. Pipes of a certain diameter and length are connected in a line, the ground is cut to create sufficient space for their installation, water pipes and sewage pipes are laid sequentially along the pipe length, and then the area is buried in soil.

[0004] Traditionally, the widely used method is to dig the ground, lay water and sewage pipes, and then cover them with soil.

[0005] In urban areas, the soil around water supply and sewage pipes is compacted to increase soil density, and concrete or asphalt is laid on the ground where the pipes are buried to prevent damage to water and sewage. The risk of sewage pipes collapsing due to ground subsidence has been minimized.

[0006] Therefore, when constructing buried water supply and sewage pipelines, the above construction method can achieve the desired purpose without additional reinforcement work, and the stability of the water supply and sewage pipelines is not a major problem.

[0007] However, in areas with frequent ground subsidence and localized settlement, such as river basins or mountainous areas with heavy rainfall, or road intersections where loads are temporarily concentrated, long, one-way water supply and sewage pipes provide very weak support for the foundation. When the buried ground settles slightly, water and sewage pipes can easily bend or twist, causing damage or cracks in certain parts, and leaks may occur through these cracks.

[0008] In this way, rainwater that seeps into the ground will remain in certain places underground for a long time or concentrate on eroding certain parts, thereby weakening and collapsing the water supply and sewage pipes on the ground. As a result, the connection between the water supply pipe and the drainage pipe will be twisted or bent due to the imbalance of the supporting base, causing some water supply pipes and drainage pipes to be damaged or broken, resulting in water leakage.

[0009] Existing technical documents

[0010] Patent documents

[0011] (Patent Document 1) Korean Patent No. 10-0669213

[0012] (Patent Document 2) Korean Patent No. 10-1577187 Summary of the Invention

[0013] The problem that the invention aims to solve

[0014] The embodiments of the present invention aim to improve the above-mentioned problems by providing a construction method for water supply and sewage pipelines that can prevent settlement. Support blocks are installed side-by-side on the upper side of the water supply and sewage pipelines to prevent settlement. In addition to preventing settlement, the objective is to provide a construction method for water supply and sewage pipelines that can prevent settlement, so that rainwater and other pollutants can be smoothly discharged through the installation of a grid structure and a drainage active layer.

[0015] Another objective of this invention is to provide a construction method for water supply and sewage pipes that can prevent settlement by forming a grid protrusion on the lower surface of the water supply and sewage pipes, which can prevent residual settlement in the vertical direction.

[0016] Another object of the present invention is to provide a construction method for water supply and sewage pipelines, which can prevent settlement by installing load-distribution components on the upper surface of the water supply and sewage pipelines.

[0017] The technical problems to be solved by the embodiments of this disclosure are not limited to those described above, and other technical problems not mentioned can be explained to those skilled in the art from the various embodiments described below.

[0018] means for solving problems

[0019] In the construction method of the settlement-preventable water supply and drainage pipeline according to the spirit of the present invention, an excavation space of a certain depth and area is provided in the ground, and a grid structure is installed along the inner surface of the excavation space. A drainage active layer is provided along the upper surface of the grid structure in the excavation space, a water supply pipe and a sewage pipe are placed at the bottom of the excavation space, and a soil layer is laid within the excavation space at the height of the water supply pipe and the sewage pipe. The method includes the steps of supporting the load with intersecting trapezoidal support blocks to prevent settlement into the soil layer, and the step of laying the ground layer with the support blocks.

[0020] According to one embodiment of the present invention, in the step of installing the drainage active layer along the upper surface of the lattice structure, the drainage active layer may be made of nonwoven fabric and filler material pulverized into a predetermined amount of waste glass. The internal dimensions of the nonwoven fabric are specified.

[0021] According to an embodiment of the present invention, grid protrusions are also formed on the lower surface of the water supply and sewage pipes to prevent settlement due to concentrated loads.

[0022] According to an embodiment of the present invention, in the step of positioning the water supply pipe and the sewage pipe on the bottom surface of the excavation space, a load distribution plate capable of distributing the load to the upper surface of the water supply pipe and the sewage pipe may be further provided.

[0023] According to an embodiment of the present invention, the support block has a trapezoidal shape, and a first support block with a bottom side wider than the top side and a second support block with a top side wider than the bottom side can be alternately installed between the first support block.

[0024] Invention Effects

[0025] The present invention relates to a method for constructing anti-settlement water supply and drainage pipelines, in which support blocks are installed side by side on the upper side of water supply and sewage pipelines to prevent settlement and damage to roads, as well as the structure and drainage of grid excavation space. The installation of an active layer has the function of smoothly draining rainwater and preventing settlement.

[0026] In addition, according to embodiments of this disclosure, the function of preventing residual vertical pressure settlement can be achieved by forming grid protrusions on the lower surface of the water supply and drainage pipe.

[0027] Additionally, settlement can be prevented by installing load-distributing components on the upper surface of water supply and sewage pipes. Attached Figure Description

[0028] Figure 1 This is a flowchart of a method for constructing a water supply and drainage pipeline to prevent settlement, provided as an embodiment of the present invention.

[0029] Figures 2 to 4 This is a cross-sectional view of the construction process of the anti-settlement water supply and drainage pipeline construction method according to an embodiment of the present invention.

[0030] Figure 5 This is a perspective view of the grid structure in the anti-settlement water supply and drainage pipeline construction method of this invention.

[0031] Figure 6 This is a partially enlarged cross-sectional view of the drainage active layer in the anti-settlement water supply and sewage pipeline construction method of this invention.

[0032] Figure 7 These are perspective and rear views of a water supply and drainage pipe according to an embodiment of the present invention.

[0033] Figure 8 This is a cross-sectional view of the installation of a load distribution plate in a water supply and drainage pipeline according to another embodiment of the present invention.

[0034] Figure 9 It is shown Figure 8 A cross-sectional view of another embodiment of the load distribution component.

[0035] Explanation of reference numerals in the attached figures

[0036] 1: Ground 100: Excavation Space

[0037] 102: Dig space from the bottom 104: Dig space from the top

[0038] 110: Grid structure 112: Fill space

[0039] 114: Triangular groove; 116: Sand

[0040] 120: Drainage active layer; 122: Non-woven fabric

[0041] 124: Packing material; 130: Water supply and drainage pipe.

[0042] 132: Grid protrusion; 140: Load distribution plate

[0043] 142: Elastic element; 150: Elastic device

[0044] 152: First elastic body; 154: Support hook

[0045] 154a: First support claw; 154b: Second support claw

[0046] 156: Second elastic body; 156a: First support groove

[0047] 156b: Second support groove; 158: Spring

[0048] 160: Soil layer; 170: Support block

[0049] 172: First support block; 174: Second support block

[0050] 180: Ground Floor Detailed Implementation

[0051] The embodiments described in this specification and the configurations shown in the accompanying drawings are merely preferred examples of the disclosed invention, and various modifications that can replace the embodiments and drawings in this specification may exist at the time of filing this application.

[0052] The same reference numerals or symbols shown in the figures of this specification indicate parts or components that perform essentially the same function. For clarity, the shape and size of the elements in the figures may be enlarged.

[0053] The terminology used herein is for describing embodiments and is not intended to limit and / or define the disclosed invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as “comprising” or “having” are intended to indicate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence or addition of numbers, steps, operations, components, parts, or combinations thereof without pre-excluding the presence or addition of such numbers, steps, operations, components, parts, or combinations thereof.

[0054] The terms containing ordinal numbers used in this specification, such as "first," "second," etc., may be used to describe various components, but the components are not limited by these terms, and these terms are only used for one purpose to distinguish one component from another. For example, a first component may be named a second component without departing from the scope of the invention, and similarly, a second component may be named a first component. The term "and / or" includes any combination of multiple related statements or any one of multiple related statements.

[0055] As used herein, terms such as “…unit,” “…module,” and “module” refer to a unit that performs at least one function or operation, implemented in hardware, software, or a combination of hardware and software. Both hardware and software are acceptable. Additionally, the terms “an or an,” “a,” “the,” and similar related terms are used herein in the context of describing various embodiments (particularly in the context of the appended claims) unless otherwise stated or clearly contradicted. In this context, it can be used in both singular and plural terms.

[0056] The terms “top,” “bottom,” “front,” “rear,” etc., used below are defined based on the accompanying drawings, and the shape and position of each component are not limited by these terms.

[0057] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0058] in, Figure 1 This is a flowchart illustrating the construction method for anti-settlement water supply and sewage pipelines provided in an embodiment of the present invention. Figures 2 to 4 This is a schematic diagram of the construction of anti-settlement water supply and sewage pipelines provided in an embodiment of the present invention. Figure 5 This is a perspective view of the grid structure in the anti-settlement water supply and drainage pipeline construction method of this invention. Figure 6 This is a partially enlarged cross-sectional view of the drainage active layer in the water supply and sewage pipeline construction method for preventing settlement according to an embodiment of the present invention. Figure 7 (a) and Figure 7 (b) in the middle. Figure 8 These are perspective and rear views of water supply and drainage pipes according to embodiments of the present invention. Figure 8 This is a cross-sectional view of the load distribution plate installed in a water supply and drainage pipe according to an embodiment of the present invention. Figure 9 It is shown Figure 8 A cross-sectional view of another embodiment of the load distribution component.

[0059] like Figure 1As shown, the anti-settlement water supply and drainage pipeline construction method 100 of the present invention includes the following steps: setting a trench space S100 of a certain depth and area in the ground, and setting a trench inside it; installing a grid structure along the side of the trench space in step S110; installing a drainage active layer along the upper surface of the grid structure in step S120; and placing the water supply and drainage pipes in step S130. At the bottom of the excavated space S130, a soil layer is laid in the excavated space at the height of the water supply and drainage pipes in step S140, and the load is supported by cross trapezoidal support blocks to prevent settlement into the soil layer in step S150, which includes the step S160 of laying a ground layer with support blocks.

[0060] To explain in more detail, firstly, the step of preparing an excavation space of a certain depth and area in the ground (see...). Figure 2 Description of S1000).

[0061] like Figure 2 As shown, the ground 1, which is composed of soft soil, can be excavated to form a trench space 100 of a certain depth in the ground 1.

[0062] The excavation space 100 may include a lower excavation space 102 and an upper excavation space 104 formed above the lower excavation space 102 and having a height difference from the lower excavation space 102.

[0063] The left and right width of the upper excavation space 104 can be made wider than the left and right width of the lower excavation space 102.

[0064] After the trench space 100 is formed by trench excavation, step S110 can be performed to install the mesh structure 110 along the inner surface of the trench space 100.

[0065] According to step S110, as Figure 3 As shown, the drainage active layer 120 is installed together with the grid structure 110. The drainage active layer 120 will be described again below.

[0066] The grid structure 110 can be set along the entire area of ​​the lower excavation space 102, while also sitting on the upper surface of the upper excavation space 104.

[0067] exist Figure 5 In the middle, the sheet-like mesh structure 110 is shown in an unfolded perspective view.

[0068] The mesh structure 110 is sheet-like with a certain thickness, and can form pore-like filling spaces 112 regularly or irregularly along the region.

[0069] To improve the permeability of the grid structure 110, prevent the formation of a fine particle layer such as soil between the grid structure 110 and the drainage active layer 120, and flatten the grid structure 110. To prevent soil from flowing out to the bottom of the grid structure 110, the filling space 112 can be filled with a filling material such as sand 116.

[0070] The mesh structure 110 can be made of nonwoven fabric or fabric with excellent water permeability, but is not limited to these, and can be made of various materials, such as synthetic resin materials such as plastics.

[0071] Multiple triangular grooves 114 are formed along the longitudinal or width direction, and these triangular grooves 114 are spaced a certain distance apart.

[0072] The triangular groove 114 can increase the permeability of the space passing through the partition grid structure 110 and the ground 1, and can also minimize settlement by increasing the contact area with the load.

[0073] Subsequently, in step S120, where the drainage active layer is installed along the upper surface of the mesh structure, the drainage active layer 120 can be reinstalled on the mesh structure 110, as follows: Figure 3 As shown.

[0074] The drainage active layer 120 is installed in the same area as the grid structure 110 to quickly promote the drainage of water in the ground 1, thereby improving the strength of the ground.

[0075] Preferably, the drainage active layer 120 can be made of non-woven fabric 122 and filler 124 containing waste glass crushed to a predetermined size inside the non-woven fabric 122.

[0076] Reference Figure 6 Nonwoven fabric 122 is made of polyester, polyvinyl alcohol, polyamide, polyvinyl chloride, polyolefin, and polyethylene. It can be made from alkenyl or polypropylene or a mixture of two or more types.

[0077] The non-woven fabric 122 can form an internal space by means of sewing, bonding, heat fusion, etc., and the internal space can be filled with waste glass filler 124.

[0078] The waste glass 124 used as filler is crushed to the same particle size as sand, impurities are removed before use, and quality control is performed to ensure that only gravel with good particle size can be used. Here, the waste glass according to the invention is crushed into fragments with a diameter of 0.4 to 0.8 cm, and waste glass flakes may be used.

[0079] Then, the water supply pipe and sewage pipe 130S130 can be constructed in the step of positioning the water supply pipe and sewage pipe at the bottom of the excavated space.

[0080] The water supply and drainage pipe 130 can be cylindrical or square, and can be installed from the bottom at the center of the excavated space 102, or multiple pipes can be connected in a straight line.

[0081] Here, another embodiment of the water supply and drainage pipe 130 is as follows: Figure 7 (a) and Figure 7 As shown in (b) of the diagram.

[0082] The grid protrusions 132 may also be formed on the lower surface of the water supply pipe and the sewage pipe 130.

[0083] The grid protrusions 132 are formed to protrude integrally with the water supply pipe and sewage pipe 130, and can prevent settlement by generating a uniformly distributed load.

[0084] The grid protrusions 132 are formed along the lower surface of the semi-circular area of ​​the water supply and drainage pipe 130, have a certain thickness, and can be integrally formed when the water supply and drainage pipe 130 is manufactured using a template or the like.

[0085] The overall shape of the grid protrusions 132 can be formed into a checkerboard grid pattern.

[0086] In another embodiment, a load distribution plate 140 capable of distributing loads to the upper surface of the water supply and drainage pipe 130 may also be installed in the water supply and drainage pipe 130.

[0087] Reference Figure 8 Describe the load distribution board 140.

[0088] The load distribution plate 140 may preferably be made of a metal plate.

[0089] Here, the load distribution plate 140 is arc-shaped with a diameter larger than that of the water supply and drainage pipe 130. Its center overlaps with and surrounds the water supply and drainage pipe 130, and its two ends extend to include the water supply and drainage pipe 130.

[0090] In addition, the two ends of the unfolded load distribution plate 140 can be spaced apart from the outer periphery of the water supply and drainage pipe 130 to form a space.

[0091] The load distribution plate 140 can be fixed to the center of the upper surface of the water supply and drainage pipe 130 by anchor bolts, or it can be seated and installed in the center without separate fixing.

[0092] The space between the water supply and drainage pipe 130 and the load distribution plate 140 can also be used to install an elastic element 142 that can support the load.

[0093] The elastic member 142 can be a widely used spring, but it can preferably be made of a corrosion-resistant material.

[0094] Another example of the elastic member 142 can be as follows: Figure 9The elastic device 150 is shown to be installed.

[0095] The elastic device 150 mainly includes a first elastic body 152 mounted on the bottom of the load distribution plate 140 and a second elastic body 152 slidably connected to the first elastic body 152 and including a spring 158.

[0096] The support hook can be formed on the first elastic body 152.

[0097] The first elastomer 152 may be made of a metallic material and may preferably be elastic.

[0098] The first elastomer 152 is detachably coupled to the second elastomer 156, and the support hook 154 can be integrally formed.

[0099] The support hook 154 may be formed with a first support claw 154a and a second support claw 154b that are curved upward on both sides relative to the center.

[0100] The second elastic body 156 is a steel pipe with openings at the top, front, and back, and its top is bent to form a first support groove 156a to correspond to the first support flange 154a and the second support flange 154b. A second support groove 156b can be formed.

[0101] The first support groove 156a and the second support groove 156b are bent longitudinally at the top of the second elastic body 156, such that the first support groove 156a is slidably connected to the first support claw 154a and the second support groove 156b. It can be slidably connected to the first support claw 154a.

[0102] The spring 158, mounted on the second elastic body 156, can be elastically supported by the support hook 154.

[0103] Therefore, when a load is applied to the load distribution plate 140, the first support groove 156a and the second support groove 156b of the second elastic body 156 move from the first support groove 154a of the support hook 154 to the first support groove 154a of the second elastic body 156. The support hook 154 prevents the second support claw 154b from separating and can support the load together with the spring 158.

[0104] In step S140, where a soil layer is laid in the excavated space at the height of the water supply and drainage pipe, the soil layer 160, composed of soil and sand, is located above the drainage active layer, such as... Figure 4 As shown. It can be installed at a certain height in the lower part of the lower excavation space 102.

[0105] The water supply and drainage pipe 130 can be buried in the soil layer 160.

[0106] Step S150: Trapezoidal support blocks at the top of the soil layer can be installed vertically and stacked to prevent sinking.

[0107] The support block 170 has a trapezoidal shape and can be composed of a first support block 172 whose bottom side is wider than its top side and a second support block 174 whose top side is wider than its bottom side.

[0108] The second support block 174 can be the same block as the first support block 172, but with the first support block 172 rotated 180 degrees. However, for ease of explanation, it will be referred to as the second support block 174.

[0109] A second support block 174, which is wider on the upper side than on the lower side, can be installed between the first support blocks 172.

[0110] That is, the inclined side of the second support block 174 can be installed to abut against the inclined side of the first support block 172.

[0111] Therefore, by cross-installing the first support block 172 and the second support block 174, the first support block 172 and the second support block 174 support each other, preventing settlement due to vertical pressure on the ground 1, thereby preventing damage to the water supply and drainage pipe 130. The support blocks 172 and the second support blocks 174 can prevent phenomena such as countersunk holes.

[0112] Depending on the depth of the excavation space 102 from the bottom, the first support block 172 and the second support block 174 can be installed in two or three stages.

[0113] Finally, step S160, which involves laying support blocks on the bottom layer, can be performed.

[0114] The lattice structure 110, the drainage active layer 120, the water supply and sewage pipes 130, the soil layer 160, and the ground layer 180 for the support blocks for stable installation in the excavation space 102 are excavated from the top. They can be installed at a certain height in the space 104.

[0115] The ground layer 180 can be made of various types, such as asphalt and concrete.

[0116] As mentioned above, support blocks are installed side by side on the upper side of water supply and drainage pipes and sewage pipes to prevent settlement and road damage. A grid structure and drainage active layer are installed in the excavated space to allow rainwater to drain smoothly, which can prevent settlement.

[0117] In addition, the grid-like protrusions formed on the lower surface of water pipes and sewage pipes can prevent residual vertical pressure settlement.

[0118] Additionally, settlement can be prevented by installing load-distributing components on the upper surface of water supply and sewage pipes.

[0119] Specific embodiments have been shown and described above. However, the invention is not limited to the embodiments described above, and various changes can be made by those skilled in the art without departing from the spirit of the invention as set forth in the appended claims.

Claims

1. A construction method for water supply and sewage pipelines capable of preventing settlement, wherein, The construction methods for water supply and sewage pipelines that can prevent settlement include: The steps involved in preparing an excavation space of a certain depth and area underground; Steps for installing a grid structure inside the excavated space; The steps for installing a drainage active layer along the upper surface of the grid structure; The steps for laying water supply pipes and sewage pipes at the bottom of the excavated space; The steps for laying soil layers in the excavated space at the height of water pipes and sewage pipes; The step of supporting the load by horizontally installing trapezoidal support blocks to prevent settlement into the soil layer; and The steps for laying the ground layer using support blocks.

2. The construction method for water supply and sewage pipelines capable of preventing settlement according to claim 1, wherein, In the step of setting a drainage active layer along the upper surface of the grid structure The drainage active layer is made of non-woven fabric and filler material made from waste glass crushed to a predetermined size.

3. The construction method for water supply and sewage pipelines capable of preventing settlement according to claim 1, wherein, The water supply and sewage pipes also have grid-like protrusions on their lower surfaces to prevent vertical pressure settling.

4. The construction method for water supply and sewage pipelines capable of preventing settlement according to claim 1, wherein, In the step of excavating the bottom of the space, It is also equipped with a load distribution plate that can distribute the load to the upper surface of the water supply and drainage pipes.

5. The construction method for water supply and sewage pipelines capable of preventing settlement according to claim 1, wherein, In the support block, The first support block is a trapezoid with a base wider than its top. Second support blocks, wider at the top than at the bottom, are alternately installed between the first support blocks.

Images