KR100665985B1 - Natural Drainage Construction Method for Reducing Upward Pressure of Buildings - Google Patents

Abstract

The present invention is to reduce the positive pressure caused by the high water pressure of the ground water in the floor concrete of the deep underground floor construction to prevent the occurrence of cracks and leakage of the floor concrete in advance, the construction to discharge the ground water to the outside It relates to a method, and more particularly to a drainage construction method that allows for natural drainage without a separate power drain. The present invention, in the drainage construction method for preventing the high water pressure caused by the water head difference of the groundwater generated in the bottom of the underground building structure and draining the groundwater, the upper surface itself after the excavation, or the after-layer layer, gravel layer, the buried layer, etc. Horizontal stop working process to stop using the oyster finish surface horizontal; A drainage installation process for drainage function on the gulto finish surface after the horizontal stop working process; A cast concrete placing process of forming a cast concrete layer by pouring mortar to a predetermined height on the gulting finish surface; A discharge pipe construction process including a discharge pipe in a non-jointed wall section outside the building structure; A drainage connection process connecting the end of the drainage and the discharge pipe; And a discharge pipe connecting process of extending the discharge pipe so that an end thereof is located at an outer side thereof and connected to a main drainage channel such as a manhole or a sewer pipe within a safety level range not exceeding an upward hydraulic pressure allowed for the building. It is characterized by.

The present invention of the configuration as described above, by having a discharge pipe for directly discharging the groundwater to the outside and directly connected to the main drainage by configuring the groundwater to be self-drained by natural drainage, a space deep and wide downward to install a separate catchment There is no inconvenience to dig or separate construction. In addition, since the groundwater naturally discharges itself without external power, there is no need to install and operate a separate pump, and the need for management and supervision is reduced. In addition, the present invention has the effect of reducing the air by simplifying the configuration, material costs, construction costs, semi-permanent function without a separate operating cost and operation, supervision, easy drainage, and easy management. In addition, the present invention has the effect of increasing the convenience of construction by discharging water by using a water collecting well at the initial stage of construction without the weight of the building.

Description

The construction method of basement self drainage for reducing the upward pressure of buildings

1 is a cross-sectional view showing a drainage construction method using a conventional water collecting well.

2 is a cross-sectional view showing a natural drainage construction method of the present invention.

3 is a cross-sectional view for showing a state in which the non-combined wall in the natural drainage construction method of the present invention.

4A, 4B, 4C, 4D, and 4E are cross-sectional views illustrating various construction methods of the present invention.

5 is a plan view for showing the construction method of the present invention.

6 is a plan view for illustrating another construction method of the present invention.

7 is a conceptual diagram illustrating the natural drainage principle of the present invention.

<Description of Symbols for Main Parts of Drawings>

10: discarded concrete layer 20: floor concrete

30: building wall 40: oyster finish surface

42: trench 44: gravel

50: drain 52: sump

60: discharge pipe 62: lower discharge pipe

70, 70a, 70b, 70c: main drainage path 80: non-jointed section

82: backfill section

The present invention is to reduce the positive pressure generated due to the high water pressure of the ground water in the floor concrete of the deep underground building to prevent the occurrence of cracks and water leakage of the floor concrete, drainage for discharging the ground water to the outside The present invention relates to a construction method, and more particularly, to a drainage construction method for allowing natural drainage without a separate power drainage device.

Among large buildings and underground structures, especially underground constructions that require deep excavation inevitably face the problem of uplift pressure of groundwater. Considering the geology and construction conditions of the site, it is very important to prepare a safe and economical upstream hydraulic pressure treatment plan.

In general, a process using dead weight and permanent (buoyancy) anchors is often used for the upward hydraulic pressure treatment on the foundation floor of a building, which does not guarantee the continuous reliability of the buoyancy anchor's tensile force in relation to the durability and safety of the building. There is a limit.

An improved method is to create an artificial catchment and drainage layer under the foundation floor, and when the groundwater flowing into the site is collected into the sump along the drainage, it is pumped and discharged regularly so that the uplifting water pressure acts on the foundation floor concrete. Permanent Underdrainage System. This has the advantage of more stable and permanently solve the problem of up-water pressure in proportion to the high groundwater level compared to the conventional method.

This permanent drainage system will be described in detail with reference to the drawings. Referring to FIG. 1, the conventional method is a method of flowing groundwater introduced from the lower side of the bottom concrete 110 into the sump 130 through the drain pipe 120.

Water accumulated in the sump 130 is accommodated within the capacity range according to the height (L1) of the sump 130, the outside having a separate discharge pipe 140 at a position (L2) lower than the stable water level (L3) Will be drained to the drainage path 150. At this time, the position of the drainage path 150 is lower than the height of the discharge pipe 140 of the sump 130, using a method of flowing down by gravity from the discharge pipe 140 to the drainage path 150.

There are two problems with this conventional approach. One is to be provided with a large sump as in the prior art, and the second is that the application range is relatively narrow because the drainage path 150 must satisfy the condition that the discharge pipe 140 should always be at a lower position. That is, in order to allow the drainage pipe 150 to flow downward naturally than the discharge pipe 140, the drainage pipe 140 may be applied only when the drainage pipe 140 is inclined to the upper side or when the drainage pipe 150 is deeply positioned. have.

The present invention has been made to solve the above problems, it is an object of the present invention to provide a natural drainage construction method for reducing the up-water pressure of the building to discharge the groundwater even without a separate sump, pump and power. .

The present invention for solving the above problems, in the drainage construction method for draining the groundwater to prevent the high upward water pressure caused by the water head difference of the groundwater generated in the bottom of the underground building structure, the upper surface itself or after gulting A horizontal stop working step of stopping the oyster finish surface horizontally by using a soil layer, a gravel layer, a barrier layer, or the like; A drainage installation process for drainage function on the gulto finish surface after the horizontal stop working process; A cast concrete placing process of forming a cast concrete layer by pouring mortar to a predetermined height on the gulting finish surface; A discharge pipe construction process including a discharge pipe in a non-jointed wall section outside the building structure; A drainage connection process connecting the end of the drainage and the discharge pipe; And a discharge pipe connecting process of extending the discharge pipe so that an end thereof is located at an outer side thereof and connected to a main drainage channel such as a manhole or a sewer pipe within a safety level range not exceeding an upward hydraulic pressure allowed for the building. It is characterized by.

It characterized in that it further comprises a back-filling process of filling the empty space and the discharge pipe is located in the non-join wall portion.

The discharge pipe is located in the non-synthesized wall section outside the building structure, characterized in that connected to the drainage and the gulto finish surface upper side.

The discharge pipe is located in the non-joined wall section outside the building structure, is positioned to be spaced apart from the gulto finish surface above the predetermined interval, characterized in that the drainage path of the drainage is formed to be directed upward and are interconnected.

The discharge pipe is located in the non-join wall section outside the building structure, is located below the depth of the gulto finish surface, it is characterized in that the drainage path of the drainage is formed to be connected downwards and interconnected.

The discharge pipe is located in the non-join wall section outside the building structure, is located inside the trench formed in the gulto finish surface, characterized in that the drainage path of the drainage is formed to be connected downwards and interconnected.

The discharge pipe is characterized by using any one of the drain plate, bundle pipe, hollow pipe, hose, plastic pipe, P.E pipe, perforated pipe, non-porous pipe, steel pipe, vinyl or geotextile.

The drainage material is characterized in that the drainage plate, bundle pipe, hollow pipe, hose, plastic pipe, PE pipe, perforated pipe, non-pipe, wood, synthetic resin, vinyl, nonwoven fabric, concrete block, formwork using any one of the formwork do.

A collecting well construction process of forming a collecting well; And a water collecting well connection process of connecting one end of the drainage material to the water collecting well.

After the building structure is formed in a predetermined scale or more, the end of the drain connected to the sump is blocked or the drain path of the drain is changed so that the drainage is not connected to the sump and the water flowing in the drain is It is characterized in that it further comprises a water collecting well blocking step that does not flow toward.

In the drainage construction method to prevent the high up water pressure caused by the water head difference of the groundwater generated at the bottom of the underground building structure, and to drain the groundwater, it is possible to use the top surface after the excavation or the remaining soil layer, the gravel layer, the burl layer, etc. A horizontal stop working step of stopping the reduction of taxes to be horizontal; A drainage installation process for drainage function on the gulto finish surface after the horizontal stop working process; A cast concrete placing process of forming a cast concrete layer by pouring mortar to a predetermined height on the gulting finish surface; And a drainage connecting process of extending the drainage so as to be connected to a main drainage channel such as a manhole or a sewer pipe that is positioned at an outer side of the drainage and is within a safety level range that does not exceed an upward hydraulic pressure allowed for the building. It is characterized by the thing.

In the drainage construction method to prevent the high up water pressure caused by the water head difference of the groundwater generated at the bottom of the underground building structure, and to drain the groundwater, it is possible to use the top surface after the excavation or the remaining soil layer, the gravel layer, the burl layer, etc. A horizontal stop working step of stopping the reduction of taxes to be horizontal; A drainage installation process for drainage function on the gulto finish surface after the horizontal stop working process; A first cast concrete pouring process for pouring mortar to a predetermined height on the gulting finish surface to form a cast concrete layer; In the first cast concrete pouring process, the drainage material located in the area where the discarded concrete layer is not formed is spaced apart from the gulting finish surface, and then, mortar is poured on the gulting finish surface of the region to form a discarding concrete layer. A second cast concrete pouring process; A drainage seating step of placing the spaced apart drainage material on an upper surface of the discarded concrete layer; And a drainage connecting process of extending the drainage so as to be connected to a main drainage channel such as a manhole or a sewer pipe that is positioned at an outer side of the drainage and is within a safety level range that does not exceed an upward hydraulic pressure allowed for the building. It is characterized by the thing.

In the drainage construction method to prevent the high up water pressure caused by the water head difference of the groundwater generated at the bottom of the underground building structure, and to drain the groundwater, it is possible to use the top surface after the excavation or the remaining soil layer, the gravel layer, the burl layer, etc. A horizontal stop working step of stopping the reduction of taxes to be horizontal; A drainage installation process for drainage function on the gulto finish surface after the horizontal stop working process; A first cast concrete placing step of pouring mortar to a predetermined height on the gulting finish surface to form a cast concrete layer; In the first cast concrete pouring process, the drainage material located in the area where the discarded concrete layer is not formed is spaced apart from the gulting finish surface, and then, mortar is poured on the gulting finish surface of the region to form a discarding concrete layer. A second cast concrete pouring process; A drainage seating step of placing the spaced apart drainage material on an upper surface of the discarded concrete layer; A discharge pipe construction process including a discharge pipe in a non-jointed wall section outside the building structure; A drainage connection process connecting the end of the drainage and the discharge pipe; And an exhaust pipe connecting process of extending the discharge pipe so that its end is located on the outer side and connected to a main drainage pipe such as a manhole or a sewer pipe within a safety level range not exceeding the upstream water pressure allowed for the building. It is characterized by being.

A construction method for forming a drainage path for draining groundwater to a sump well formed on one side while preventing a high upward pressure caused by the water head difference of the groundwater generated in the lower concrete floor of the underground building structure, A horizontal stop working step of stopping the oyster finish surface horizontally using a gravel layer, a block layer, or the like; A first drainage installation step of installing a first drainage that functions as a drainage to allow the groundwater to flow in and collect on the gulto finish surface; A cast concrete placing step of pouring mortar to a predetermined height on the gulting finish surface to form a cast concrete layer; A second drainage installing step of installing a second drainage on an upper side of the discarded concrete layer; A drain material connection process of connecting the first drain material and the second drain material to communicate with each other; And a second drainage connecting process of extending the second drainage so as to be connected to a main drainage channel such as a manhole or a sewer pipe that is positioned at an outer side of the second drainage and is within a safety level range that does not exceed an upward hydraulic pressure allowed for the building. It is characterized by including the configuration.

A construction method for forming a drainage path for draining groundwater to a sump well formed on one side while preventing high upward water pressure caused by the water head difference of the ground concrete generated from the lower concrete floor of the underground building structure, A horizontal stop working step of stopping the oyster finish surface horizontally using a gravel layer, a block layer, or the like; A first drainage installation step of installing a first drainage that functions as a drainage to allow the groundwater to flow in and collect on the gulto finish surface; A cast concrete placing step of pouring mortar to a predetermined height on the gulting finish surface to form a cast concrete layer; A second drainage installing step of installing a second drainage on an upper side of the discarded concrete layer; A drain material connection process of connecting the first drain material and the second drain material to communicate with each other; A discharge pipe construction process including a discharge pipe in a non-jointed wall section outside the building structure; A second drainage connection process connecting the end of the second drainage and the discharge pipe; And a discharge pipe connecting process of extending the discharge pipe so that an end thereof is located at an outer side thereof and connected to a main drainage channel such as a manhole or a sewer pipe within a safety level range not exceeding an upward hydraulic pressure allowed for the building. It is characterized by the thing.

Hereinafter, with reference to the embodiments of the present invention shown in the accompanying drawings, it will be described in more detail the configuration of the present invention.

Figure 2 is a cross-sectional view for showing a natural drainage construction method of the present invention, Figure 3 is a cross-sectional view for showing a state in which the non-combined wall of the natural drainage construction method of the present invention. Referring to FIG. 2, after stopping the gulting finish surface 40 horizontally, the drainage material 50 is arrange | positioned at the vertical or horizontal predetermined space on the upper surface.

Drainage 50 is composed of a variety of pipes, drain mats, S-shaped bundle tube, plate, plate-shaped bundle tube, hollow tube, hose, synthetic resin tube, perforated tube, non-perforated tube, drain plate, concrete block It can be made of various materials such as wood, resin, geotextile, and metal. In addition, the drainage material 50 forms a drainage space by forming a boundary with the discarded concrete 10 by the discarded concrete 10, and thus serves as a formwork and functions as a form drainage drainage.

Interposed between the oyster finish surface 40 and the drainage material (50) interposing the geotextile (not shown) or wrap the drainage material with geotextiles so that no floating matters are introduced, and arranged drainage material (50) to be gathered to one side The outlet of the 50 is installed so as to be connected to the discharge pipe 60 installed in the outer wall 30, the non-joint wall section of the building.

The next process is to prevent the inflow of the discarded concrete 10 to the lower portion of the drainage material 50 when the discarded concrete 10 is poured on the whole or nonwoven fabric (not shown) and the drainage material 50. Install a waterproof PE film vinyl (not shown) to prevent groundwater from penetrating into the concrete 20. When the vinyl is installed, when the drain pipe 50 of the drain material 50 is connected to the sump of one side of the site or serves only as a drain, the drain material 50 is installed on the vinyl without installing the vinyl on the drain material 50. It is also possible. When installing the drainage material on the plastic, it is also possible to fix and install the drainage material 50 and the vinyl with tape so that it is fixed at the time of casting concrete. Next, the concrete mortar is poured on the gulting finish surface 40 to a predetermined height to form the discarded concrete 10.

The discharge pipe 60 is connected to the lower discharge pipe 62 extending horizontally long, the vertical portion is extended is connected to the external main drainage path (70a, 70b, 70c). At this time, if the height of the main drainage is a height within the safety level (H1) corresponding to the pressure that the building can support without floating, it is possible to connect regardless of the height (H2) connected to the discharge pipe (60). That is, the groundwater pressurized by the upward water pressure of the groundwater and the weight of the building is pushed out through the drainage material 50 and the discharge pipe 60, and is discharged by being pressed into the external main drainage paths 70a, 70b, and 70c.

At this time, even if the position of the main drainage path 70a is higher than the discharge position of the discharge pipe 60, groundwater pressurized by the pressure is discharged to the main drainage path 70a along the discharge pipe 60. If the main drainage channel 70a is at a position higher than the safety level H1, since the building rises due to upward water pressure, the hydraulic drainage level H1 is hydraulically pre-calculated beforehand and the main drainage path 70a is within this range. , 70b, 70c) shall be selected or newly formed.

There is a height difference between the position of the drainage 50, the groundwater flows in and the main drainage paths 70a, 70b, and 70c, resulting in the water pressure of the groundwater. Therefore, it is natural drainage only when a certain upward hydraulic pressure is exceeded, and the upward hydraulic pressure below that is maintained together with the weight of the building. Therefore, it has a function of determining the upward hydraulic pressure due to a certain height difference between the drain and the main drain, and has a buffering effect.

After all of the drainage material 50, the lower discharge pipe 62, and the building wall 30 are formed, the empty space between the non-jointed section 80 and the building wall 30 is filled with concrete, aggregate, etc. The state after the process is shown in FIG. 3.

This process sequence can be changed freely. For example, the drain pipe 60 may be installed first, and then the drain material 50 may be installed and the discarded concrete 10 and the building wall 30 may be formed, and the drainage material 50, the discarded concrete 10, and the building wall ( After forming 30, the discharge pipe 60 may be connected. The order is not limited to the order set forth in the claims as long as the overall manner includes all the steps set forth in the claims.

In addition, it is also possible to form an extension so that the drainage 50 is directly connected to the main drainage channel without connecting the drainage and the discharge pipe. In this case, the drain material 50 may be connected to the upper side of the gulto finish, or may be connected horizontally. If the main drainage is below the oyster finish surface, the drainage 50 may be connected to be inclined downward. In addition, when connecting the drain and the discharge pipe, the discharge pipe (60, 62) may be connected in a horizontal position, the discharge pipe (60, 62) may be connected to the main drainage channel horizontally.

4A, 4B, 4C, 4D, and 4E are cross-sectional views illustrating various construction methods of the present invention. Referring to FIGS. 4A, 4B, 4C, 4D, and 4E, it can be interconnected in various forms and heights according to mutual positions of the drainage material 50 and the lower discharge pipe 62.

Referring to FIG. 4A, the lower discharge pipe 62 is a diagram illustrating a mutual coupling relationship in a state of being disposed on the gulting finish surface 40. Since the drainage material 50 and the lower discharge pipe 62 are connected on the same plane, horizontal (A) connection is possible. The lower discharge pipe 62 is preferably positioned horizontally on the gulto finish surface 40, but in some cases it may be arranged obliquely, or may be embedded obliquely in the non-joined wall section.

4B and 4C, when the lower discharge pipe 62 is spaced slightly above the gulting finish surface 40 or inserted into the gulting finish surface 40 by a predetermined depth, the drainage material 50 is upward. It is bent to (B) or downward (B), or connected to each other using a connector (not shown) for connecting up and down. In this case, the lower discharge pipe 62 may be installed at a somewhat higher position, or may be installed at an oblique angle. Similarly, the lower discharge pipe 62 may be installed at a somewhat deep position, or may be installed obliquely at an angle. In this case, the drain 50 is formed to extend to the end of the lower discharge pipe 62 to enable mutual coupling.

Referring to FIG. 4D, even when the lower discharge pipe 62 is constructed in the trench 42 filled with gravel 44 and the like in the space between the non-joined wall section 80 and the building wall 30, the drainage material 50 is provided. The end of the bent downward (D), or connected using a connector (not shown) or the like.

Referring to FIG. 4E, the drainage material 50 may be configured to have multiple heights in the discarded concrete layer 10. After disposing a portion 50a of the drainage material on the gulting finish surface 40, the mortar is poured thereon to form the discarded concrete layer 10, while the other portion 50b of the drainage material is removed from the gulting finish surface 40. Spaced apart so as to be located above the discarded concrete layer (10).

To this end, after casting some of the discarded concrete 10, the other part is lifted up the drainage material (50b), and then poured the rest, there is a method of placing the drainage material (50b) thereon, in addition to the top of the discarded concrete (10) After placing a separate drainage material below, through the discarded concrete 10 may be connected or interconnected using a separate socket, connector, and the like.

5 is a plan view for showing the construction method of the present invention. Referring to FIG. 5, the drainage material 50 is disposed below the building, and the lower discharge pipe 62 and the discharge pipe 60 are positioned in a space between the outer portion of the building wall 30 and the non-jointed wall. The groundwater flowing below the building passes through the building wall 30 along the drain 50 and is connected to the lower discharge pipe 62 or the discharge pipe 60. This is because the groundwater flows through the groundwater under pressure due to the upward pressure of the groundwater and the weight of the building that presses the groundwater.

6 is a plan view for illustrating another construction method of the present invention. Referring to FIG. 6, as described above, the groundwater should be pressurized by the upward pressure and the weight of the building. Since the building has almost no self weight at the beginning of construction, the groundwater is pressurized and cannot be naturally drained.

Therefore, at the initial stage of construction, the collecting well 52 may be separately installed to allow for artificial drainage. One side of the drain 50 is connected to the sump 52, and the water is stored through the sump 52 until the weight of the building is formed, it is drained using a pump (not shown). . Since the construction of the building proceeds to some extent, if the self-weight of the building occurs to some extent, the water of the drain 50 is not blocked to flow toward the sump (52) (E), only the natural drainage using the discharge pipe (60) You can also make it possible.

7 is a conceptual diagram illustrating the natural drainage principle of the present invention. Referring to FIG. 7, the groundwater pressurized by the self-weight (W) of the building and the upward water pressure (P) of the groundwater is discharged to the main drainage path 70 such as an external manhole, sewage pipe, etc. by the drainage 50 and the discharge pipe 60. Will flow. At this time, the height difference between the allowable main drainage 70 and the drainage 50 position is possible within a range in which the building does not rise due to the upward hydraulic pressure, which should be calculated hydraulically.

That is, in order for the groundwater to be discharged by itself without any external force, the pressure applied to the groundwater by the weight of the building (W) and the upward water pressure (P) of the groundwater is transferred from the depth (i) of the groundwater to the main drainage path (70). It must be greater than the potential energy difference ΔEp to the point where it is discharged, that is, the point where it meets with the external manhole A or the sewage pipe B and the like.

At the same time, if the difference in height to the main drainage channel 70 is so large that the potential energy difference ΔEp is large, before the groundwater exits the main drainage channel 70, the upward hydraulic pressure may lift the building, thus increasing the safety level of the building. By calculating, the position of the main drainage path 70 should be selected and selected appropriately.

Therefore, for natural discharge, allowable location and height limit of the discharge point are calculated through hydraulic calculation of building weight and positive pressure, and construction method and structure should be selected within the range.

When the groundwater is naturally drained by using the self-weight of the building and the upward water pressure of the groundwater, there is no need for a separate process to create a catchment well, which shortens the air and reduces the construction cost. In addition, since there is no need to artificially discharge the groundwater collected in the sump, there is no need to install a separate pump and operate it at regular intervals. This eliminates the need for complicated pump installation and operation, reducing construction and operating costs. In addition, in the case of natural drainage, its configuration is simple and robust, so once installed, there is no breakdown or operation stops, so it can be used semi-permanently without a separate operation method or operation cost by only one installation.

The present invention of the configuration as described above is provided with a discharge pipe for directly discharged to the main drainage to discharge the groundwater to the ground by self-configured so that the natural drainage, by installing a separate catchment well deep and wide space downward There is no inconvenience to dig or construct separately.

In addition, since the groundwater naturally discharges itself without external power, there is no need to install and operate a separate pump, and the need for management and supervision is reduced.

In addition, the present invention has the effect of reducing the air by simplifying the configuration, material costs, construction costs, semi-permanent function without a separate operating cost and operation, supervision, easy drainage, and easy management.

In addition, the present invention has the effect of increasing the convenience of construction by discharging water by using a water collecting well at the initial stage of construction without the weight of the building.

Claims (15)

In the drainage construction method for preventing the high water pressure caused by the water head difference of the ground water generated in the bottom of the underground building structure and draining the ground water, A horizontal stop working step of stopping the gulto finish surface horizontally by using the upper surface itself after the gulting or the remaining soil layer, the gravel layer, the buffing layer, etc .; A drainage installation process for drainage function on the gulto finish surface after the horizontal stop working process; A cast concrete placing process of forming a cast concrete layer by pouring mortar to a predetermined height on the gulting finish surface; A discharge pipe construction process including a discharge pipe in a non-jointed wall section outside the building structure; A drainage connection process connecting the end of the drainage and the discharge pipe; And And a discharge pipe connection process of extending the discharge pipe so that its end is located on the outer side and connected to a main drainage channel such as a manhole or a sewer pipe within a safety level range not exceeding the upstream water pressure allowed for the building. Natural drainage construction method for reducing the upward water pressure of the building characterized by. The method of claim 1, The natural drainage construction method for reducing the up-water pressure of the building, characterized in that it further comprises a backfill process of filling the empty space of the discharge pipe is located in the non-joint wall portion. The method of claim 1, The discharge pipe is: It is located within the non-jointed section outside the building structure, Natural drainage construction method for reducing the up-water pressure of the building, characterized in that interconnected in the drainage and the gulto finish surface. The method of claim 1, The discharge pipe is: It is located within the non-jointed section outside the building structure, Is positioned to be spaced apart from the gulto finish surface above a predetermined interval, Natural drainage construction method for reducing the up-water pressure of the building, characterized in that the drainage path of the drainage is formed to be connected upward. The method of claim 1, The discharge pipe is: It is located within the non-jointed section outside the building structure, Located below the gulto finish surface a predetermined depth, Natural drainage construction method for reducing the upward pressure of the building, characterized in that the drainage path of the drainage is formed to be connected downward. The method of claim 1, The discharge pipe is: It is located within the non-jointed section outside the building structure, Located inside the trench formed in the gulto finish surface, Natural drainage construction method for reducing the upward pressure of the building, characterized in that the drainage path of the drainage is formed to be connected downward. The discharge pipe of claim 2, wherein the discharge pipe is: A method of constructing a natural drainage for reducing upstream pressure of a building using any one of a drain plate, a bundle pipe, a hollow pipe, a hose, a plastic pipe, a P.E pipe, a hollow pipe, a non-pipe, a steel pipe, a vinyl, or a geotextile. The method of claim 1, wherein the drainage material is: Drainage, bundle, hollow pipe, hose, plastic pipe, PE pipe, perforated pipe, non-pipe, wood, synthetic resin, vinyl, non-woven fabric, concrete block or formwork to form a drainage of the building, characterized in that Natural drainage construction for reducing water pressure. The method of claim 1, A collecting well construction process of forming a collecting well; And The natural drainage construction method for reducing the up-water pressure of the building, characterized in that it further comprises a water collecting well connection process for connecting one end of the drain to the water collecting well. The method of claim 9, After the building structure is formed in a predetermined scale or more, the end of the drain connected to the sump is blocked or the drain path of the drain is changed so that the drainage is not connected to the sump and the water flowing in the drain is The natural drainage construction method for reducing the up-water pressure of the building, characterized in that it further comprises a water collection block blocking process to prevent flow. In the drainage construction method for preventing the high water pressure caused by the water head difference of the ground water generated in the bottom of the underground building structure and draining the ground water, A horizontal stop working step of stopping the gulto finish surface horizontally by using the upper surface itself after the gulting or the remaining soil layer, the gravel layer, the buffing layer, etc .; A drainage installation process for drainage function on the gulto finish surface after the horizontal stop working process; A cast concrete placing process of forming a cast concrete layer by pouring mortar to a predetermined height on the gulting finish surface; And A drainage connecting process of extending the drainage to be connected to a main drainage channel such as a manhole or a sewer pipe which is positioned at an outer side of the drainage and is within a safety level range not exceeding an upward hydraulic pressure allowed for the building; Natural drainage construction method for reducing the upward water pressure of the building characterized by. In the drainage construction method for preventing the high water pressure caused by the water head difference of the ground water generated in the bottom of the underground building structure and draining the ground water, A horizontal stop working step of stopping the oyster finish surface to be horizontal by using the upper surface itself after the gulting or the residual soil layer, the gravel layer, and the buffing layer; A drainage installation process for drainage function on the gulto finish surface after the horizontal stop working process; A first cast concrete placing step of pouring mortar to a predetermined height on the gulting finish surface to form a cast concrete layer; In the first cast concrete pouring process, the drainage material located in the area where the discarded concrete layer is not formed is spaced apart from the gulting finish surface, and then, mortar is poured on the gulting finish surface of the region to form a discarding concrete layer. A second cast concrete pouring process; A drainage seating step of placing the spaced apart drainage material on an upper surface of the discarded concrete layer; And A drainage connecting process of extending the drainage to be connected to a main drainage channel such as a manhole or a sewer pipe which is positioned at an outer side of the drainage and is within a safety level range not exceeding an upward hydraulic pressure allowed for the building; Natural drainage construction method for reducing the upward water pressure of the building characterized by. In the drainage construction method for preventing the high water pressure caused by the water head difference of the ground water generated in the bottom of the underground building structure and draining the ground water, A horizontal stop working step of stopping the oyster finish surface to be horizontal by using the upper surface itself after the gulting or the residual soil layer, the gravel layer, and the buffing layer; A drainage installation process for drainage function on the gulto finish surface after the horizontal stop working process; A first cast concrete placing step of pouring mortar to a predetermined height on the gulting finish surface to form a cast concrete layer; In the first cast concrete pouring process, the drainage material located in the area where the discarded concrete layer is not formed is spaced apart from the gulting finish surface, and then, mortar is poured on the gulting finish surface of the region to form a discarding concrete layer. A second cast concrete pouring process; A drainage seating step of placing the spaced apart drainage material on an upper surface of the discarded concrete layer; A discharge pipe construction process including a discharge pipe in a non-jointed wall section outside the building structure; A drainage connection process connecting the end of the drainage and the discharge pipe; And And a discharge pipe connection process of extending the discharge pipe so that its end is located on the outer side and connected to a main drainage channel such as a manhole or a sewer pipe within a safety level range not exceeding the upstream water pressure allowed for the building. Natural drainage construction method for reducing the upward water pressure of the building characterized by. In the construction method to form a drainage path for draining the groundwater to the sump well formed on one side while preventing the high upward water pressure caused by the water head difference of the groundwater generated in the lower concrete floor of the underground building structure, A horizontal stop working step of stopping the gulto finish surface horizontally by using the upper surface itself after the gulting or the remaining soil layer, the gravel layer, the buffing layer, etc .; A first drainage installation step of installing a first drainage that functions as a drainage to allow the groundwater to flow in and collect on the gulto finish surface; A cast concrete placing step of pouring mortar to a predetermined height on the gulting finish surface to form a cast concrete layer; A second drainage installing step of installing a second drainage on an upper side of the discarded concrete layer; A drain material connection process of connecting the first drain material and the second drain material to communicate with each other; And A second drainage connecting process of extending the second drainage so as to be connected to a main drainage channel such as a manhole or a sewer pipe that is positioned at an outer side of the second drainage and is within a safe water level not exceeding an upward hydraulic pressure allowed for the building; Natural drainage construction method for reducing the upward pressure of the building, characterized in that configured to. In the construction method to form a drainage path for draining the groundwater to the sump well formed on one side while preventing the high upward water pressure caused by the water head difference of the groundwater generated in the lower concrete floor of the underground building structure, A horizontal stop working step of stopping the gulto finish surface horizontally by using the upper surface itself after the gulting or the remaining soil layer, the gravel layer, the buffing layer, etc .; A first drainage installation step of installing a first drainage that functions as a drainage to allow the groundwater to flow in and collect on the gulto finish surface; A cast concrete placing step of pouring mortar to a predetermined height on the gulting finish surface to form a cast concrete layer; A second drainage installing step of installing a second drainage on an upper side of the discarded concrete layer; A drain material connection process of connecting the first drain material and the second drain material to communicate with each other; A discharge pipe construction process including a discharge pipe in a non-jointed wall section outside the building structure; A second drainage connection process connecting the end of the second drainage and the discharge pipe; And And a discharge pipe connection process of extending the discharge pipe so that its end is located on the outer side and connected to a main drainage channel such as a manhole or a sewer pipe within a safety level range not exceeding the upstream water pressure allowed for the building. Natural drainage construction method for reducing the upward water pressure of the building characterized by.

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