Underwater Pipe Installation Module for Water Intake and Discharge and Method of Installing the Same

Abstract

The underwater intake and drainage pipe installation module according to the present invention may include a pipe-shaped pipe and two or more concrete blocks installed to cover and wrap a predetermined area of ​​the pipe along the longitudinal direction.

Description

Technology Field

[0001] The present invention relates to a technology for installing water intake and drainage piping installed underwater or on the seabed, and more specifically, to an underwater intake and drainage piping installation module comprising a pipe-shaped piping and a concrete block surrounding it, and a construction method using the same. Background Technology

[0002] The installation of water intake and drainage pipes installed underwater or on the seabed is a technical field that is essential in various industrial sectors, such as offshore plants, hydroelectric power plants, marine aquaculture farms, and desalination facilities.

[0003] In addition, these underwater pipes must be stably fixed to the seabed for smooth water intake and drainage, and must ensure durability against external environmental factors such as ocean currents and waves.

[0004] Generally, High Density Polyethylene (HDPE) pipes, which offer excellent corrosion resistance and flexibility, are primarily used for underwater piping installations. Conventionally, a construction method involving tying these HDPE pipes to concrete sleepers with ropes has been widely used.

[0005] Specifically, the conventional construction method involves fusing pipes together to the required length as shown in Fig. 1, joining them with concrete sleepers and ropes, and then filling the inside of the pipes with air to seal them.

[0006] Subsequently, as shown in Fig. 2, the pipe connected by a rope is towed by a barge to the installation location, and then the construction is carried out by sinking it into the water while releasing the air from the pipe.

[0007] However, this conventional construction method has the following problems.

[0008] First, there is a problem with low load transfer efficiency because the load is transmitted indirectly since the pipes and concrete sleepers are connected by ropes. Additionally, the process of securing the ropes is difficult, and there is a risk that the connected ropes may come loose even after construction, posing issues in terms of construction quality and stability. These problems are factors that hinder the long-term stability of the submarine pipeline.

[0009] Furthermore, while various external force factors such as lift and drag caused by ocean currents and the coefficient of friction with the seabed must be considered in the construction of submarine pipelines, conventional fastening methods using ropes have limitations in that it is difficult to respond precisely to these external forces.

[0010] Therefore, a method to resolve these problems is required. Prior art literature

[0011] Korean Registered Patent No. 10-0670120 The problem to be solved

[0012] The present invention is an invention devised to solve the problems of the aforementioned prior art, and aims to provide an underwater intake and drainage pipe installation module that can improve the stability and constructability of the piping by compensating for the disadvantages of the existing rope connection method.

[0013] In addition, the present invention aims to provide an underwater intake and drainage pipe installation module that minimizes deformation caused by external forces on the seabed by more firmly combining the pipes and the concrete block structure.

[0014] In addition, the purpose is to provide an underwater intake and drainage piping installation module that shortens construction time and enhances structural safety through a fixed structure, such as a bolt fastening method.

[0015] In addition, the purpose is to provide an underwater intake and drainage piping installation module that is modularized so that it can be applied in the same way in various underwater environments.

[0016] The problems of the present invention are not limited to those mentioned above, and other unmentioned problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0017] The underwater intake and drainage pipe installation module of the present invention for achieving the above-mentioned purpose may include a pipe-shaped pipe and two or more concrete blocks installed to cover and wrap a predetermined area of ​​the pipe along the longitudinal direction.

[0018] And the above concrete block may include an upper block having a semicircular upper installation groove formed inside and covering and wrapping the upper side of the pipe, and a lower block having a semicircular lower installation groove formed inside and covering and wrapping the lower side of the pipe.

[0019] In addition, the upper block and the lower block may be formed to be bolted together.

[0020] At this time, the present invention may further be provided with a shock absorber installed in the upper installation groove and the lower installation groove to suppress vibration transmission with the pipe.

[0021] In addition, the above lower block may be further provided with an insertion part that allows it to be inserted into and fixed to the terrain.

[0022] Meanwhile, the present invention may further be provided with a padding portion installed on the lower side of the lower block.

[0023] In addition, the lower block may be further provided with an insertion part that is inserted into and fixed to the terrain, and may be further provided with a padding part installed on the lower side of the lower block and having an opening formed therein through which the insertion part passes.

[0024] In addition, the present invention may further be provided with a closing unit that closes both ends of the pipe.

[0025] In addition, the above-mentioned closing unit may include an air discharge hole and an air closing part that closes the air discharge hole.

[0026] And another form of the underwater intake and drainage pipe installation module of the present invention for achieving the above-mentioned purpose may include an upper block in which a semicircular upper installation groove is formed inside the concrete block and which covers and surrounds the upper side of the pipe, and a pair of pipe-exposed lower blocks that cover and surround both lower sides of the pipe while the lower central part of the pipe touches the ground.

[0027] In addition, the above upper block and the pipe-exposed lower block can be bolted together.

[0028] Meanwhile, the present invention may further provide a shock absorber between the upper block and the pipe to suppress vibration transmission with the pipe.

[0029] In addition, the present invention may further provide a shock absorber between the pipe-exposed lower block and the pipe to suppress vibration transmission with the pipe.

[0030] And the method for installing an underwater intake and drainage pipe installation module of the present invention to achieve the above-mentioned purpose may include the step of installing concrete blocks at set intervals along the longitudinal direction of the pipe so as to cover and wrap the outside of the pipe in each predetermined area of ​​the pipe-shaped pipe.

[0031] In addition, the present invention may further include the step of installing a shock absorber at a location where the upper block, the lower block, and the piping come into contact before installing the upper block and the lower block.

[0032] At this time, the present invention may further include the step of combining the upper block and the lower block.

[0033] In addition, the present invention may further include a step of closing one side of the pipe.

[0034] Meanwhile, the present invention may further include a step of discharging air inside the pipe to the outside.

[0035] In addition, the step of closing one side of the pipe is performed using a closing unit that closes both ends of the pipe, and the closing unit may include an air discharge hole and an air closing part that closes the air discharge hole.

[0036] And the step of discharging air from the pipe to the outside can be performed by removing the air blockage from the air discharge hole. Effects of the invention

[0037] The underwater intake and drainage pipe installation module and the installation method thereof according to the present invention, for solving the above-mentioned problem, have a structure in which a pipe-shaped pipe and two or more concrete blocks surrounding it are directly connected, thereby directly transferring the entire load compared to the conventional rope fastening method, which has the effect of significantly improving structural stability in an underwater environment.

[0038] In addition, the present invention has the advantage of effectively preventing shaking or displacement of the pipe caused by ocean currents or external impacts, as the concrete block is configured to cover and wrap a predetermined area along the longitudinal direction of the pipe.

[0039] Furthermore, since the present invention is configured in a modular form in which piping and concrete blocks are integrated, it has the advantage of simplifying construction in underwater environments, reducing work time, and ensuring uniform quality regardless of the worker's skill level.

[0040] In addition, the present invention has a structure in which two or more concrete blocks are installed along the longitudinal direction of the pipe, thereby enabling stable installation and easy maintenance for pipes of various lengths.

[0041] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims. Brief explanation of the drawing

[0042] Figures 1 and 2 are photographs showing the construction process for installing conventional underwater piping. FIGS. 3 and FIGS. 4 are drawings showing the appearance of an underwater intake and drainage pipe installation module according to the first embodiment of the present invention. FIGS. 5 to 8 are drawings showing the process of installing an underwater intake and drainage pipe installation module according to the first embodiment of the present invention. FIGS. 9 and FIGS. 10 are drawings showing the appearance of an underwater intake and drainage pipe installation module according to a second embodiment of the present invention. FIG. 11 is a drawing showing the appearance of an underwater intake and drainage pipe installation module according to the third embodiment of the present invention. FIG. 12 is a drawing showing the appearance of an underwater intake and drainage pipe installation module according to the fourth embodiment of the present invention. FIG. 13 is a drawing showing the detailed structure of an underwater intake and drainage pipe installation module according to the fifth embodiment of the present invention. Specific details for implementing the invention

[0043] In this specification, where a component (or region, layer, part, etc.) is described as being "on," "connected," or "combined" with another component, it means that it may be directly placed / connected / combined with the other component, or that a third component may be placed between them.

[0044] Identical reference numerals denote identical components. Additionally, in the drawings, the thicknesses, proportions, and dimensions of the components are exaggerated for the effective illustration of the technical content.

[0045] "And / or" includes all one or more combinations that the associated configurations can define.

[0046] Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0047] Additionally, terms such as "below," "lower side," "above," and "upper side" are used to describe the relationships between the components depicted in the drawings. These terms are relative concepts and are described based on the directions indicated in the drawings.

[0048] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Additionally, terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and are explicitly defined herein unless interpreted in an ideal or overly formal sense.

[0049] Terms such as "include" or "have" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0050] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0051] FIGS. 3 and FIGS. 4 are drawings showing the appearance of an underwater intake and drainage pipe installation module according to the first embodiment of the present invention.

[0052] As illustrated in FIGS. 3 and 4, in this embodiment, the underwater intake and drainage pipe installation module may include a pipe-shaped pipe (10, see FIG. 5) and two or more concrete blocks (100) installed so as to cover and wrap a predetermined area of ​​the pipe (10) along the longitudinal direction.

[0053] The pipe (10) used for the underwater intake and discharge pipe can be formed from high-density polyethylene (HDPE) material, which can maintain durability even in a corrosive environment of seawater or freshwater. High-density polyethylene pipes have excellent corrosion resistance and chemical resistance, and can have the advantage of being flexible and adaptable to changes in the seabed topography.

[0054] In this embodiment, the concrete block (100) may include an upper block (110) that has a semicircular upper installation groove (111) formed inside and covers and wraps the upper side of the pipe (10), and a lower block (120) that has a semicircular lower installation groove (121) formed inside and covers and wraps the lower side of the pipe (10).

[0055] The upper installation groove (111) and the lower installation groove (121) are formed with a size corresponding to the outer diameter of the pipe (10) so that the pipe (10) can be stably fixed. The thickness and size of the concrete block (100) can be determined by considering environmental conditions such as the strength of the ocean current, water depth, and seabed topography.

[0056] In addition, the upper block (110) and the lower block (120) can be configured to be joined by a bolt (P). The bolt (P) fastening method may use a bolt made of a corrosion-resistant material that can withstand a seawater environment, and the fastening force can be quantitatively adjusted so that the pressure applied to the pipe (10) can be evenly distributed.

[0057] Multiple bolts (P) for joining the upper block (110) and the lower block (120) may be provided, and in this embodiment, bolts (P) may be provided at each of the four corners of the concrete block (100). By placing the bolts (P) in four places, the pressure applied to the pipe (10) can be evenly distributed, and the concrete block (100) can be prevented from detaching from the pipe (10) even if an external force caused by ocean currents or waves is applied. This four-bolt (P) fastening structure allows the pipe (10) to be stably fixed by applying a fastening force in the up and down direction at both corners of the concrete block (100).

[0058] The upper installation groove (111) and the lower installation groove (121) may be equipped with a shock absorbing part (130) that suppresses vibration transmission to the pipe (10). The shock absorbing part (130) can prevent vibrations caused by ocean currents or waves from being directly transmitted to the pipe (10).

[0059] For example, the shock absorbing part (130) may be formed of an elastic rubber material, and can prevent slipping between the pipe (10) and the concrete block (100) and prevent the surface of the pipe (10) from coming into direct contact with the concrete block (100), thereby preventing damage to the surface of the pipe (10).

[0060] The shock absorber (130) is installed in the upper installation groove (111) and the lower installation groove (121), respectively, and may be provided by dividing it into a semicircular shape to correspond to the shape of the pipe (10). The shock absorber (130) installed in the upper installation groove (111) may have an upper semicircular shape, and the shock absorber (130) installed in the lower installation groove (121) may have a lower semicircular shape.

[0061] Such a shock absorbing part (130) can be compressed along the outer surface of the pipe (10) when the upper block (110) and the lower block (120) are fastened with a bolt (P), thereby firmly fixing the pipe (10).

[0062] An underwater intake and discharge pipe installation module having the configuration described above can be designed to respond to lift and drag forces caused by ocean currents. Lift is a force acting perpendicular to the flow acting on an object, and this can be offset by the weight of the concrete block (100). Drag is a force acting in the direction of the flow acting on an object, and this can be offset by the frictional force between the concrete block (100) and the seabed.

[0063] Specifically, the lift and drag forces can each be expressed by the following mathematical formula 1. The weight of the concrete block (100) can be determined by taking into account these lift and drag forces.

[0065]

[0066]

[0068] The lift and drag calculated through such mathematical formula 1 can be used to determine the weight and shape of the concrete block (100). The weight of the concrete block (100) must be greater than the calculated lift, and the drag can be countered by the frictional force between the concrete block (100) and the seabed.

[0069] Below, the process of installing the underwater intake and drainage pipe installation module according to the first embodiment of the present invention described above will be explained in detail.

[0070] FIGS. 5 to 8 are drawings illustrating the process of installing an underwater intake and drainage pipe installation module according to a first embodiment of the present invention. As shown in FIGS. 5 to 8, the installation of the underwater intake and drainage pipe according to the present invention can proceed in the following steps.

[0071] First, a step of connecting and fusing the pipes (10) to each other for the required length can be performed. This is a process of connecting individual pipes (10) by heat fusion to match the required length at the installation site, and the fused connection can be formed to have the same strength as the pipes (10).

[0072] The fusion connection of such pipes (10) can play an important role in ensuring watertightness and preventing leakage or separation of the connection parts even during long-term use.

[0073] Next, as shown in FIG. 5, a step may be performed to install concrete blocks (100) at set intervals along the length of the pipe (10) so as to cover and wrap the outside of the pipe (10) in each set area of ​​the pipe-shaped piping (10).

[0074] This step may consist of a step of installing a shock absorber (130) at a location where the upper block (110), the lower block (120), and the pipe (10) come into contact before installing the upper block (110) and the lower block (120) of the concrete block (100), and a step of combining the upper block (110) and the lower block (120).

[0075] At this time, the shock absorbing part (130) is installed in the upper installation groove (111) and the lower installation groove (121), respectively, and is formed of an elastic material so as to prevent vibrations caused by ocean currents or waves from being directly transmitted to the pipe (10).

[0076] And in the step of joining the upper block (110) and the lower block (120), the joining process can be carried out through bolts (P) installed at four corners, and at this time, the fastening force of the bolts (P) can be adjusted so that the shock absorbing part (130) is uniformly compressed along the outer surface of the pipe (10).

[0077] Next, as illustrated in FIG. 6, a step of closing one side of the pipe (10) may be performed. Specifically, in this step, a closing unit (20) that closes both ends of the pipe (10) is installed.

[0078] The closing unit (20) can be formed in a structure capable of completely sealing the end of the pipe (10), and an air discharge hole (21) can be formed inside. At this time, the air discharge hole (21) can be opened and closed by an air closing part (22), and the air closing part (22) can be formed in a structure that is detachably coupled to the air discharge hole (21).

[0079] Due to the installation of such a closing unit (20), the inside of the pipe (10) can be kept sealed, and the pipe (10) can have buoyancy due to the air filled inside.

[0080] Next, as illustrated in FIG. 7, a step of moving the pipe (10) on which the concrete block (100) is installed to the installation location using a barge (B) can be performed.

[0081] The barge (B) may have a size and structure capable of stably transporting the pipe (10) at sea, and may be equipped with a fixing device to prevent the pipe (10) from detaching from the barge (B).

[0082] Next, after reaching the installation location as shown in FIG. 8, a step of exhausting the air inside the pipe (10) to the outside may be performed.

[0083] This step can be performed by removing the air closure part (22) of the closure unit (20) from the air discharge hole (21), and when the air closure part (22) is removed, the air inside the pipe (10) is discharged to the outside through the air discharge hole (21) and seawater is introduced so that the pipe (10) can sink into the water.

[0084] Afterwards, the pipe (10) can be stably settled on the seabed by the weight of the concrete block (100) and the pressure of the seawater, and the position of the pipe (10) can be fixed by the concrete block (100) even against external forces such as ocean currents or waves.

[0085] Meanwhile, in this embodiment, the stability of the underwater intake and drainage pipe installation module can be verified through the following mathematical formula 2.

[0087]

[0088]

[0090] Equation 2 implies that the actual total weight must be greater than the weight required for stability, which allows the piping to be stably maintained on the seabed even under external force conditions such as ocean currents or waves.

[0091] Specifically, the required weight for the stability of underwater intake and drainage pipes takes into account the combined effects of horizontal and vertical forces, and can be calculated using the coefficient of friction between the seabed and the concrete block as a parameter.

[0092] In this context, horizontal force refers to drag and inertial force caused by ocean currents, while vertical force refers to the lift acting on the piping. These forces are external force elements that directly affect the stability of the piping.

[0093] The total weight of the actually installed piping system is calculated by subtracting the weight of the underwater pipes from the sum of the weight of the concrete blocks in seawater, the weight of the pipes in air, and the weight of the internal fluids. Here, the weight of the underwater pipes accounts for the effect of buoyancy and, according to Archimedes' principle, is equal to the weight of the seawater displaced by the pipes.

[0094] In addition, the criterion for determining stability is that the ratio of the actual total weight to the required weight must be greater than 1. This means a condition in which the piping can be maintained stably without detaching from the seabed even if external forces caused by ocean currents or waves are applied.

[0095] Through this mathematical approach, it is possible to quantitatively evaluate the stability of the design and construction of underwater intake and drainage piping installation modules.

[0096] The first embodiment of the present invention has been described above, and various embodiments of the present invention will be described in detail below.

[0097] FIGS. 9 and FIGS. 10 are drawings showing the appearance of an underwater intake and drainage pipe installation module according to a second embodiment of the present invention.

[0098] As illustrated in FIGS. 9 and 10, in the second embodiment of the present invention, the underwater intake and drainage pipe installation module may include a pipe-shaped pipe (10) and two or more concrete blocks (200) installed to cover and wrap a predetermined area of ​​the pipe (10) along the longitudinal direction.

[0099] In addition, in this embodiment, the concrete block (200) may include an upper block (210) that covers and wraps the upper side of the pipe (10) and has a semicircular upper installation groove (211) formed inside, and a pair of pipe-exposed lower blocks (220) that cover and wrap both lower sides of the pipe (10) while the lower central part of the pipe (10) touches the ground.

[0100] The structure of such a pipe-exposed lower block (220) can improve the stability of the pipe (10) by allowing the pipe (10) to come into direct contact with the seabed.

[0101] In addition, in the case of the present embodiment, a shock absorbing part (230) may be provided between the upper block (210) and the pipe (10), and between the pipe-exposed lower block (220) and the pipe (10).

[0102] Such a shock absorber (230) can suppress the transmission of vibrations to the pipe (10) and prevent the surface of the pipe (10) from coming into direct contact with the concrete block (200), thereby preventing damage to the surface of the pipe (10). To this end, the shock absorber (230) can be installed along the upper installation groove (211) of the upper block (210) and the inner surface of the pipe-exposed lower block (220).

[0103] The pipe-exposed lower block (220) of the second embodiment as described above is configured so that the lower central part of the pipe (10) comes into direct contact with the seabed, and this allows the pipe (10) to come into direct contact with the seabed, thereby increasing the coefficient of friction with the seabed.

[0104] In other words, this has the effect of improving resistance to horizontal forces, and according to the aforementioned stability evaluation formula, as the friction coefficient increases, the required weight decreases, making it possible to install it more stably.

[0105] In addition, since the pipe (10) is in direct contact with the seabed, vibrations caused by ocean currents or waves can be directly transmitted to and dispersed from the seabed. This dispersion of vibrations can contribute to improving the long-term stability of the pipe (10).

[0106] In addition, since the lower part of the pipe (10) is in direct contact with the seabed, the seabed can perform a structural role of supporting the pipe (10) together with the concrete block (200). This can have the effect of distributing the load acting on the pipe (10) over a wider area.

[0107] FIG. 11 is a drawing showing the appearance of an underwater intake and drainage pipe installation module according to the third embodiment of the present invention.

[0108] As illustrated in FIG. 11, the third embodiment of the present invention also includes an underwater intake and drainage pipe installation module that may include a pipe-shaped pipe (10) and a concrete block (300) that surrounds the pipe (10).

[0109] And the concrete block (300) may be composed of an upper block (310) that covers and wraps the upper side of the pipe (10) and a lower block (320) that covers the lower side of the pipe (10) and is equipped with a support member (322).

[0110] In the present embodiment, the outer surfaces of the upper block (310) and the lower block (320) may be formed in a rounded shape, and connecting portions that come into contact with each other may be formed protrudingly on both sides. Through these connecting portions, the upper block (310) and the lower block (320) can be joined by a bolt (P).

[0111] A support member (322) is formed at the bottom of the lower block (320) to increase the contact area with the seabed. Such a support member (322) can prevent the concrete block (300) from moving horizontally on the seabed.

[0112] In addition, in this embodiment as well, a shock absorber (330) may be provided between the upper block (310) and the lower block (320). The shock absorber (330) may be installed between the pipe (10) and the concrete block (300) to suppress the transmission of vibrations to the pipe (10). The shock absorber (330) may be installed along the inner surface of the upper block (310) and the lower block (320) to prevent the surface of the pipe (10) from coming into direct contact with the concrete block (300).

[0113] FIG. 12 is a drawing showing the appearance of an underwater intake and drainage pipe installation module according to the fourth embodiment of the present invention.

[0114] As illustrated in FIG. 12, in this embodiment, the underwater intake and drainage pipe installation module may include a pipe-shaped pipe (10) and a concrete block (400) surrounding it, and the concrete block (400) has a shape similar to that of the first embodiment overall.

[0115] That is, the concrete block (400) may include an upper block (410) that covers and wraps the upper side of the pipe (10) and a lower block (420) that covers and wraps the lower side of the pipe (10), and a shock absorbing part (430) may be provided between the upper block (410) and the lower block (420).

[0116] In the present embodiment, the lower block (420) may be provided with an insertion part (440) that is inserted into and fixed to the terrain, and a padding part (450) may also be installed on the lower side of the lower block (420). At this time, an opening (451) through which the insertion part (440) passes may be formed in the padding part (450).

[0117] Such an insertion part (440) is formed to protrude downward from the bottom of the lower block (420) and can be inserted into the seabed, thereby preventing the concrete block (400) from moving horizontally on the seabed.

[0118] Additionally, the padding portion (450) can be installed between the lower block (420) and the seabed to prevent the lower block (420) from coming into direct contact with the seabed, and can be configured so that the insertion portion (440) can be inserted into the opening (451).

[0119] Such a padding portion can be installed between the lower block (420) and the seabed to increase friction. This can have the effect of increasing the coefficient of friction with the seabed in the aforementioned stability evaluation formula, thereby improving resistance to horizontal forces caused by ocean currents or waves.

[0120] FIG. 13 is a drawing showing the detailed structure of an underwater intake and drainage pipe installation module according to the fifth embodiment of the present invention.

[0121] As illustrated in FIG. 13, the present embodiment relates to a fastening hole structure for a bolt (P) formed in an upper block (110), wherein the fastening hole may be formed such that a certain clearance space is secured upward from the upper surface of the head even after the head of the bolt (P) is inserted. This clearance space may provide a space in which various components to be described later can be stacked step by step.

[0122] In this embodiment, a luminescent paint layer (30) may be formed on the upper surface of the head of the bolt (P). The luminescent paint layer (30) can maintain a luminescence effect for a long time even in a dark environment inside the fastening hole, so that the position of the bolt (P) can be quickly identified during underwater work.

[0123] Additionally, a photocurable resin layer (40) may be laminated on the luminescent paint layer (30) to a predetermined thickness. The photocurable resin layer (40) may have the characteristic of curing into an adhesive when irradiated with ultraviolet (UV) light, causing cross-linking between molecules. The photocurable resin layer (40) may be provided with a uniform thickness inside the fastening hole and may cure rapidly upon UV irradiation to firmly fix the watertight member (50) described later.

[0124] Additionally, a watertight member (50) with a through hole formed in the center may be provided on the photocurable resin layer (40). Such a watertight member (50) can prevent seawater from flowing into the fastening hole.

[0125] In this embodiment, a plurality of fixing protrusions (51) may be formed on the lower surface of the watertight member (50), and these fixing protrusions (51) may penetrate into the photocurable resin layer (40) to improve the fixing force of the watertight member (50). For example, the fixing protrusions (51) may be arranged radially, and each fixing protrusion (51) may have a shape that becomes sharper as it goes downward.

[0126] And the through hole of the watertight member (50) can serve as a passage for UV irradiation. When UV irradiation occurs, UV can be directly irradiated onto the photocurable resin layer (40) through the through hole, and at this time, the photocurable resin layer (40) can be rapidly cured to firmly bond the head of the bolt (P) and the watertight member (50).

[0127] After the curing of the photocurable resin layer (40) is complete, an auxiliary watertight member (52) can be inserted into the through hole of the watertight member (50). The auxiliary watertight member (52) may have an outer diameter corresponding to the inner diameter of the through hole and may be firmly fixed to the through hole by a press-fit method. In addition, the auxiliary watertight member (52) may perform the function of double-blocking the inflow of seawater through the through hole.

[0128] Meanwhile, in this embodiment, the photocurable resin layer (40) may be formed with a color that is visually distinguishable from the watertight member (50). This allows the exposure of the photocurable resin layer (40) to be easily checked visually when the watertight member (50) is damaged due to erosion by seawater or external impact.

[0129] In addition, if the photocurable resin layer (40) is also damaged and the head of the bolt (P) is exposed, the damage to the bolt (P) can be immediately checked through the luminescent paint layer (30).

[0130] Through such a multi-stage color-coded structure, the degree of damage to the bolt (P) fastening part can be identified step by step even in an underwater environment, which can provide useful information for determining the timing and method of maintenance.

[0131] According to the embodiment described above, perfect watertightness can be ensured for the fastening portion of the bolt (P) through a composite watertight structure, which can prevent corrosion of the bolt (P) by seawater and contribute to ensuring long-term durability of the underwater intake and drainage pipe installation module.

[0132] Preferred embodiments according to the present invention have been described above, and it is obvious to those skilled in the art that, in addition to the embodiments described above, the present invention may be embodied in other specific forms without departing from the spirit or scope thereof. Therefore, the embodiments described above should be regarded as illustrative rather than restrictive, and accordingly, the present invention is not limited to the description above but may be modified within the scope of the appended claims and their equivalents. Explanation of the symbols

[0133] 10: Piping 20: Closed unit 21: Air vent hole 22: Air closure 30: Luminous paint layer 40: Photocurable resin layer 50: Watertight member 51: Fixed protrusion 52: Auxiliary watertight member 100: Concrete block 110: Upper block 111: Upper mounting groove 120: Lower block 121: Bottom mounting groove 130: Shock absorber 200: Concrete block 210: Upper Block 211: Upper mounting groove 220: Exposed pipe type lower block 230: Shock absorber 300: Concrete block 310: Upper block 320: Lower block 322: Support 330: Shock absorber 400: Concrete block 410: Upper block 420: Lower block 430: Shock absorber 440: Insert 450: Padded section 451: Open hole P: Bolt B: Barge

Claims

Claim 1 An underwater intake and drainage pipe installation module comprising: a pipe-shaped piping; and two or more concrete blocks installed to cover and wrap a predetermined area of ​​the piping along the longitudinal direction. Claim 2 In claim 1, the concrete block comprises an upper block having a semicircular upper installation groove formed inside and covering and surrounding the upper side of the pipe, and a lower block having a semicircular lower installation groove formed inside and covering and surrounding the lower side of the pipe, an underwater intake and drainage pipe installation module. Claim 3 In paragraph 2, the underwater intake and drainage pipe installation module is configured such that the upper block and the lower block are bolted together. Claim 4 In paragraph 2, an underwater intake and drainage pipe installation module further provided with shock absorbers installed in the upper installation groove and the lower installation groove to suppress vibration transmission with the pipe. Claim 5 In paragraph 2, the underwater intake and drainage pipe installation module further comprises an insertion part that allows the lower block to be inserted into and fixed to the terrain. Claim 6 In paragraph 2, an underwater intake and drainage pipe installation module further provided with a padding portion installed on the lower side of the lower block. Claim 7 In paragraph 2, the underwater intake and drainage pipe installation module is further provided with an insertion part that allows the lower block to be inserted into and fixed to the terrain, and a padding part installed on the lower side of the lower block and having an opening formed through which the insertion part passes. Claim 8 An underwater intake and drainage pipe installation module according to claim 1, further equipped with a closing unit that closes both ends of the pipe. Claim 9 In claim 8, the above-mentioned closing unit comprises an air discharge hole and an air closing part that closes the air discharge hole, an underwater intake and drainage pipe installation module. Claim 10 An underwater intake and drainage pipe installation module comprising: a pipe-shaped piping; and two or more concrete blocks installed along the longitudinal direction of the piping to cover and surround a predetermined area of ​​the piping, wherein the concrete blocks include an upper block having a semicircular upper installation groove formed inside and covering and surrounding the upper side of the piping, and a pair of pipe-exposed lower blocks covering and surrounding both lower sides of the piping while the lower central part of the piping touches the ground. Claim 11 In item 10, the above-mentioned upper block and pipe-exposed lower block are formed to be bolted together, forming an underwater intake and drainage pipe installation module. Claim 12 An underwater intake and drainage pipe installation module according to claim 10, further comprising a shock absorber between the upper block and the pipe to suppress vibration transmission with the pipe. Claim 13 An underwater intake and drainage pipe installation module according to claim 10, further comprising a shock absorber between the pipe-exposed lower block and the pipe to suppress vibration transmission with said pipe. Claim 14 A method for installing an underwater intake and drainage pipe installation module, comprising the step of installing concrete blocks at set intervals along the length of the pipe to cover and wrap the outside of the pipe in each set area of ​​the pipe-shaped piping. Claim 15 A method for installing an underwater intake and drainage pipe installation module according to claim 14, wherein the concrete block is divided into an upper block and a lower block, and further includes the step of installing a shock absorber at a location where the upper block and the lower block come into contact with the pipe before installing the upper block and the lower block. Claim 16 A method for installing an underwater intake and drainage pipe installation module, comprising, in addition to the step of combining the upper block and the lower block in claim 15. Claim 17 A method for installing an underwater intake and drainage pipe installation module, comprising, in addition to the step of closing one side of the pipe in Clause 16. Claim 18 A method for installing an underwater intake and drainage pipe installation module, wherein, in Clause 17, the step of discharging air inside the pipe to the outside is further included. Claim 19 In claim 17, the step of closing one side of the pipe is performed using a closing unit that closes both ends of the pipe, and the closing unit includes an air discharge hole and an air closing part that closes the air discharge hole, a method for installing an underwater intake and drainage pipe installation module. Claim 20 In claim 19, the step of discharging air inside the pipe to the outside is performed by removing the air blockage from the air discharge hole, in a method for installing an underwater intake and drainage pipe installation module.

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