KR200342683Y1 - A manhole for preventing flood - Google Patents

Abstract

The present invention is to provide a manhole installation device for the storage and reduction of rainwater installed in the ground. The present invention is embedded in the ground step by step to be connected to the inflow and outflow pipes in order to store and reduce rain discharge step by step, the wall is a plurality of penetration holes in contact with the ground so that rain water is naturally discharged The inside of the manhole body having a lid formed with the lid and at least the upper end thereof from the bottom of the manhole body to a height corresponding to the inlet pipe to reduce the flow rate of the rainwater flowing from the inlet pipe to the outlet pipe 2. The lower compartment is provided with a manhole installation device for storage and reduction of rainwater including a partition wall provided with a distribution hole for contacting compartment compartments in the lower compartment, to prevent flooding occurring in lowlands, for example, housing complexes, Increased groundwater cultivation reduces the groundwater pollution and creates a more environmentally friendly environment. A.

Description

Manhole Equipment for Storage and Reduction of Rainwater {A MANHOLE FOR PREVENTING FLOOD}

The present invention relates to a manhole, and more particularly, to delay the outflow and outflow time of rainwater flowing from the highlands to the lowlands, to reduce the large-scale flood burden in the lowlands, as well as to nurture the reservoir It relates to phosphorus storage and reduction manhole.

Generally, rainwater storage and abatement facilities are used to control the amount of rainwater runoff and the speed of runoff due to the increase of impermeable surface due to the development of asphalt, concrete, or housing complexes. It is well known that it is installed and used in.

Moreover, in recent years, unpredictable heavy flood damage has often occurred in lowlands due to guerrilla heavy rains and typhoons. The main reason for such flooding and flooding in cities is the sudden drainage of rainwater beyond the capacity of rivers and sewers.

However, the flood management method up to now is a linear management focused on the construction of large facilities such as dams and embankments to send rainwater to the stream as soon as possible, and then to send rainwater blown downstream. However, this is a disadvantage that requires a lot of cost and time due to the large facilities and long construction period. In order to solve these problems, the recent concept of area management, which can reduce flood damage at a low cost even with existing facilities, can be achieved by collecting rainwater slowly and slowly flowing in all areas. The trend is to use the method.

The rainwater spill containment and abatement facilities can be classified into an infiltration type that allows rainwater to penetrate underground when the water flows to the ground or into a drainage system, and a storage facility that temporarily stores rainwater in one place and discharges after the flood. .

In particular, the penetration-type facility has a method of increasing the penetration rate by using a courtyard, a park or a green space in front of the house, and a method of allowing the penetration of an impervious surface surface such as a sidewalk or a parking lot using high permeability material. In addition, there are infiltration trenches, infiltration canisters, and infiltration sideholes that induce rainwater to penetrate into waterways.

In the storage facility, runoff is installed at the exit or basin exit of the on-site and subwatersheds in the basin where small amounts of rainwater are treated at the point where the rainwater falls. There is an off-site beyond the storage area.

However, the conventional manhole is changed to an impervious surface of concrete and asphalt such as forests, grasslands, houses, roads, etc., which have a rainwater discharge control function due to urbanization and industrialization. The risk of large-scale flood damage has increased, while defense measures to prevent rainwater spillage, such as drainage, storage, and underground infiltration, are not followed.

Therefore, the present invention has been devised to solve the above problems, using a distribution wall formed at a certain height from the bottom of the manhole body of the manhole and a distribution hole formed at the lower end of the partition wall, usually through a distribution hole. It is an object of the present invention to provide a storage and abatement manhole to reduce the burden of flooding in cities or lowlands by draining rain and draining the distribution hole and the partition wall during the rainy season. .

In order to achieve the above object, in the rainwater discharge device that is discharged through the inlet pipe and the outlet pipe is installed in contact with the incoming rainwater in the ground (land), the outlet water pipes are buried step by step in the ground A manhole body having a lid formed to be spaced apart from each other to be discharged by reducing the discharge of the rainwater step by step in communication with each other and having a plurality of penetration holes in contact with the ground for natural discharge of the rainwater; And at least an upper end of the manhole main body is installed at a height corresponding to the inlet pipe and divided into two compartments. The lower part of the manhole main body has a lower portion to induce a deceleration of the flow rate of the rainwater flowing from the inlet pipe to the outlet pipe. And partition walls provided with distribution holes for contacting the compartments.

Between the manhole body and the ground is filled with rubble to maintain the porosity and at the same time the entire circumference of the rubble layer is characterized in that the nonwoven fabric is further installed to prevent the inflow of soil.

The partition wall is characterized in that installed at a height corresponding to 80 to 90% of the inlet pipe.

The penetration hole is characterized in that it is formed to be inclined downward inside the manhole body.

Figure 1a is a longitudinal cross-sectional view of the manhole is installed step by step from the high ground to the low land according to the present invention,

1B is a detail view of FIG. 1A;

Figure 2a is a longitudinal cross-sectional view of the manhole in the state in contact with the outflow pipe of the rainwater according to the present invention,

FIG. 2B is a detail view of FIG. 2A;

3A is a cross-sectional view of FIG. 2A,

3B is a detail view of FIG. 3A,

4a and 4b is a view showing a state in which rainwater flows in and out through the manhole according to the present invention,

5a and 5b is a view showing a state in which rainwater flows in and out through the manhole according to the present invention at the time of rainwater.

Explanation of symbols on the main parts of the drawings

100 manhole 110 partition wall

102: manhole body 111: distribution ball

106a, 106b: inlet and outlet pipes 112: penetration holes

108: opening 114: rubble

116: nonwoven fabric

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

Figure 1a is a longitudinal cross-sectional view of the manhole is installed step by step from the high ground to the low land in accordance with the present invention, Figure 1b is a detailed view of Figure 1a, Figure 2a is a state in which the manhole according to the present invention in contact with the inflow pipe of the rain 2B is a detailed view of FIG. 2A, FIG. 3A is a cross-sectional view of FIG. 2A, FIG. 3B is a detail view of FIG. 3A, and FIGS. 4A and 4B show a state in which rainwater flows in and out through a manhole according to the present invention. Figures 5a and 5b is a view showing a state in which rainwater flows in and out through the manhole according to the present invention at the time of rainwater.

As shown in Figures 1a and 1b, the manhole according to the present invention is embedded in the ground to be contacted step by step through the connecting pipe (106a ~ 106d) from the highlands to the lowlands, soaking in the rain or The present invention relates to a storage and abatement manhole facility for preventing the flooding of low-flow streams and minimizing the damage by controlling the flooding of downstream streams by storing and reducing the flow rate and outflow rate of falling rainwater.

Hereinafter, the manhole to be described will be described in detail with reference to the manhole located at the uppermost end in FIGS.

First, as shown in Figure 2a, the manhole 100 according to the present invention is provided with a manhole body 102. The manhole body 102 has a cylindrical portion 104 inwardly as in the conventional manhole, the inlet pipe 106a for providing a rainwater inlet to the upper end of any one side of the manhole body 102 The opening 108 is formed to be in contact with each other, and at the lower end of the other side, an outflow pipe allowing rainwater introduced through the inflow pipe 106a to be excluded from the space 104 of the manhole body 102 ( An opening 108 is also formed so that 106b) can be retracted and contacted.

In addition, the upper portion of the manhole body 102 has a lid 101 that is exposed to the outside can be opened and closed, the inside of the manhole body 102 can easily enter and exit the operator for maintenance. Ladder 118 is laid so that.

In addition, the manhole 100 according to the present invention includes a partition wall 110 and a distribution hole 111 so that the amount of rainwater flowing in and the outflow speed thereof can be suppressed (controlled) through storage and reduction.

The partition wall 110 is at least a top end of the manhole body 102 is installed at a height corresponding to the inlet pipe 106a to partition the interior into two compartments, and the compartment compartment below A distribution hole 111 is formed for contact.

The partition wall 110 has a first compartment compartment 104a and an outlet tube 106b through which rainwater flows through the space 104 in the manhole body 102 through the inlet pipe 106a. The compartment is divided into a second compartment 104b which is in direct contact with the compartment. More preferably, the height of the partition wall 110 may be installed to be located at a height corresponding to 80 to 90% of the height at which the inflow pipe 106a is installed.

The partition wall 110 has a predetermined distribution hole 111 is formed at the lower end thereof, and the distribution hole 111 has the rainwater introduced from the inflow pipe 106a on a regular basis or is slowly over time. It serves to flow to the outlet pipe (106b). In particular, the distribution hole 111 is preferably formed in a circular or square, the distribution hole 111 is formed of a multi-layered hole, which effectively stores the flow of rainwater, reducing the flow rate to reduce the flow rate Do it. Of course, the distribution hole 111 may be formed as a single hole (not shown in the figure).

Therefore, the partition wall 110 is a case of heavy rain, that is, when the amount of rainwater suddenly increases into the space 104 in the manhole body 102, the introduced rainwater immediately passes through the outflow pipe 106b. It prevents rain from flowing into lowlands or housing complexes by preventing them from being excluded. In other words, the introduced rainwater (arrow of FIG. 4A) is only formed at the bottom of the partition wall 110 until a certain amount of rainwater can overflow the partition wall 110. Only through the ball 111 will be excluded to the outlet pipe (106b).

In particular, the manhole body 102 has a plurality of penetration holes 112 formed to penetrate the outside of the manhole body 102 to the inner surface into which the inflow pipe 106a is introduced. It is formed to be inclined. The penetration hole 112 allows rainwater introduced into the first compartment 104a in the manhole body 102 to be directly penetrated into the ground, so that the rainwater rapidly flows toward the second compartment 104b. By effectively controlling the overflow of the wall 110 to control the flow rate and the flow rate of rainwater to prevent the occurrence of a sudden flood. The penetration hole 112 may be formed to be horizontal to the wall used.

In addition, the outer circumferential surface on which the manhole 100 is installed is filled with rubble, that is, rubble 114 (eg, gravel, etc.) to maintain a constant porosity. This allows the rainwater flowing out from the penetration hole 112 formed to penetrate through the inner surface of the manhole body 102 can be flowed slowly between the layers formed by the rubble 114 to further suppress a sudden outflow of rainwater. This is to increase the cultivation of groundwater during the dry water.

In addition, the front circumference in which the rubble 114 is filled prevents the infiltration of rainwater into the ground through the penetrating hole 112 due to the inflow of foreign matters that can block the penetrating holes 112 such as earth and sand. In order to provide a non-woven fabric (Non-woven fabric) (116) is preferable to further install. In particular, the material of the nonwoven fabric 116 is preferably made of a material that rain water can flow freely while suppressing the entry and exit of the soil at least. Therefore, the rainwater flowing into the first compartment 104a formed by the partition wall 110 without introducing foreign matters from the outside continuously opens the second compartment 104b through the distribution hole 111. Although it is excluded through the outflow pipe 106b via the case, when the amount of rainwater flowing into the first compartment 104a increases, the partition wall 110 flows over until the amount of rainwater reaches a predetermined level. Absorbed into the rubble 114 layer through the penetration hole 112 so as to be moved along the void space formed by the rubble 114 to suppress the sudden increase of runoff to prevent flooding in lowlands as well as housing complexes In addition, damage can be minimized.

Moreover, the inflow of rainwater continues to flow slowly through the manholes 100 as well as the rubble 114 continuously, thereby increasing the amount of groundwater to be utilized as valuable water resources in the dry season.

Hereinafter, the operational state of the present invention and the effects thereof will be described.

As shown in Figs. 4A to 5B, the manhole is embedded so as to be in close contact with each other step by step through the inflow pipe 106a and the outflow pipe 106b in the ground from the highlands to the lowlands to fall in the rain. Rain water (arrow on the drawing) is introduced through the inlet pipe 106a to be stored in the first compartment 104a so that a predetermined amount of the second portion of the partition wall 110 is continuously through the distribution hole 111. It flows into the compartment 104b and flows into another adjacent manhole, reservoir or reservoir through the outlet pipe 106b.

In particular, when a large amount of rainwater, such as the rainy season occurs, rainwater introduced through the inlet pipe (106a) is introduced into the first compartment (104a) of the partition wall 110 and at the same time the flow hole 111 Continuously flows through the second compartment (104b) and is excluded through the outlet pipe 106b, and further penetrates into the ground through the penetration hole 112 formed in the inner surface of the manhole body 102 and the first Only a predetermined amount of rainwater introduced into the first compartment 104a is overflowed to the partition wall 110 and moved to the second compartment 104b up and down to be excluded through the outlet pipe 106b. do.

The manhole 100 having the above structure is installed step by step from the highlands to the lowlands in consideration of the permeability of the land, the topography and the climatic conditions of the area, and also the height of the partition wall 110 and the outflow pipe 106a, If the diameter of 106b) and the distribution hole 111 to an appropriate level, only a certain amount of rainwater is always excluded, thereby reducing the burden of flooding.

According to the storage and abatement manhole facility device according to the present invention, it is possible to continuously exclude a certain amount of rainwater through the distribution hole at the bottom of the partition wall in normal times, and to prevent sudden rainwater leakage by the partition wall and the penetration holes in rainy weather. Not only can it effectively prevent flooding and flooding of low-lying residential complexes, but it also increases the amount of groundwater due to the surface penetration of rainwater, resulting in lower concentrations of pollutants, securing a lot of water resources, In the case of adjacent areas, there is an effect that the desalination due to the inflow of seawater can be prevented when the groundwater is depleted.

Claims (4)

In the rainwater discharge device for discharging the incoming rainwater through the inlet pipe buried in the ground and the outflow pipe installed in contact with the rainwater, It is embedded in the ground step by step to be connected to the inflow and outflow pipes in order to store and reduce the discharge of rain water in stages, and the cap formed with a plurality of infiltration holes spaced in contact with the ground for the natural discharge of rain water Manhole body having; And At least a top end of the manhole body is installed at a height corresponding to the inlet pipe, and the inside is divided into two compartments, and a compartment is provided at the bottom to induce a deceleration of the flow rate of the rainwater flowing from the inlet pipe to the outlet pipe. Manhole arrangements for storage and abatement of rainwater, including partition walls provided with distribution holes for contacting the compartments. The method of claim 1, wherein between the manhole body and the ground is filled with rubble to maintain the porosity and at the same time the entire circumference of the rubble layer is stored in the rainwater, characterized in that the non-woven fabric is further installed to prevent the inflow of soil Reduction Manhole Equipment. The manhole installation apparatus for storing and reducing rainwater of claim 1, wherein the partition wall is installed at a height corresponding to 80 to 90% of the inflow pipe. The manhole installation apparatus for storing and reducing rainwater according to claim 1, wherein the penetration hole is formed to be inclined downward inside the manhole body.