KR100721225B1 - Drainage structure for soft ground treatment and dehydration method - Google Patents

Abstract

The present invention relates to a pore water drainage structure and drainage method of soft ground, the purpose of which is economical by laying a general soil on the top of the soft ground so as to smoothly drain the gap water dewatered to the ground through the vertical drainage installed in soft ground This very excellent, and after forming the drainage in the general earth and sand drainage pipe connected to the vertical drainage in the drainage to discharge the gap water out of the area is excellent in the horizontal drainage capacity of the gap water, the catchment manhole inside the reclaimed soil It is provided to be buried to facilitate the movement of equipment and to provide a pore water drainage structure and drainage method of the soft ground to prevent consolidation settlement around the manhole.

The present invention for achieving the above object is a general soil laying on top of the soft ground; Vertical drainage is poured into the soft ground through the general soil, arranged in parallel to each other or staggered to form a plurality of array lines and the end of the vertical drainage to extend to the top of the general soil; A series multiplier formed between the pair of array lines facing each other of the array lines; A parallel drainage formed to connect the vertical drainage adjacent to both sides of the series drainage and the series drainage; A drain pipe continuously connected to the series and parallel drains; A water collecting main pipe connected to the drain pipe and collecting the water of the gap; and a water collecting manhole connected to the water collecting pipe to store the gap water and having an upper portion sealed; A discharge and drain pipe installed to extend from the water collecting manhole to the water draining side hole to drain the gap water stored in the water collecting manhole; A buried layer disposed in the parallel and series drainage channels to protect the drain pipe; The technical gist of the present invention consists of a reusable soil layer laminated to cover the collecting manhole on the top of the general soil.

Soft ground, vertical drainage, drainpipe, drainage, catchment manhole, horizontal drainage, channel,

Description

Drainage Structure For Soft Ground Treatment and Dehydration Method

1 is an exemplary view showing a conventional soft ground dehydration promotion method,

Figure 2 is a front cross-sectional view showing the soft ground dehydration acceleration method of the present invention,

Figure 3 is an exemplary view as viewed from a plane showing the arrangement of the vertical drainage of the present invention,

Figure 4 is a perspective view showing the installation structure of the drainage pipe and the conduit when the vertical drainage is arranged in parallel according to an embodiment of the present invention,

Figure 5 is a plan view showing the installation structure of the drainage pipe and the pipe in the case where the vertical drainage is arranged in parallel according to an embodiment of the present invention,

Figure 6 is a plan view showing the installation structure of the drainage and pipe in the case of arranging the vertical drainage staggered by another embodiment of the present invention,

7 is a cross-sectional view showing an installation state of the drain pipe of the present invention;

8 is a cross-sectional view showing a collecting manhole installation state of the present invention;

9 is an exemplary view showing a drain pipe according to an embodiment in the present invention,

<Description of the symbols for the main parts of the drawings>

(10): soft ground (11): geotextile

(12): general soil (13): reusable soil

14: drainage port 15: buried floor

(20): vertical drainage

(30): drain pipe (31): left branch pipe

(32): Right branch (33): Upper branch

(34): lower branch pipe (35): wrinkle

(36): exhaust hole 37: filter

(40): series drainage (41): parallel drainage

(42) array line

(50): catchment manhole (51): mining

(52): lid (53): discharge drain pipe

(54): portable water pump (60): water collecting supervisor

(100): Soft ground (101): Vertical drainage

(102): horizontal drainage layer (103): drainage side opening

(104): Reclaimed Soil (105): Sewer Manhole

The present invention relates to the pore water drainage structure and drainage method of the soft ground, more specifically by laying a general soil on the upper of the soft ground to prevent the voltage effect of the horizontal drainage layer due to the movement of construction equipment to improve the horizontal permeability performance In addition, it prevents partial uneven subsidence and is very economical because it is easy to supply materials, and horizontal drainage is formed by embedding the drain pipe connected to the vertical drainage by fitting coupling in the pre-drained drainage channel. The present invention relates to a smooth drainage structure and a drainage method of soft ground that facilitates the movement of equipment and prevents the suppression of consolidation settlement around the manhole by filling the reclaimed soil collecting manhole.

In general, in order to build structures such as residential areas, industrial complexes, airports, roads, and embankments in the soft grounds near rivers, lakes, and swamps, the structure of the structures was constructed after dehydration of moisture contained in the soft grounds.

In order to dehydrate the soft ground as described above, the vertical drainage 101 is pressed into the soft ground 100 as shown in FIG. 1 to dehydrate the water to the ground, and the water is made of sand or crushed stone on the ground. It was discharged into the horizontal drainage layer 102 and discharged out of the area through the collecting manhole 105 or the drainage side opening 103.

At this time, the vertical drainage 101 is exposed to the horizontal drainage layer 102 so as to discharge the moisture of the soft ground 100 out of the area to discharge the ground moisture into the horizontal drainage layer 102 made of sand or crushed stone. Although discharged, the material forming the horizontal drainage layer 102 has to be supplied with high-quality sand or crushed stone at sea or on land, but it is very difficult to purchase due to environmental problems and the purchase cost is also expensive.

In addition, the water discharged to the horizontal drainage layer 102 causes a voltage effect on the horizontal drainage layer due to the movement of construction equipment, which degrades the horizontal permeability and partially delays the ground improvement due to uneven settlement of the ground, resulting in increased construction cost and poor construction. There is a problem that gives the cause.

In addition, in order to solve the problems described above, a method for supplementing the horizontal drainage performance by installing perforated perforations in the horizontal drainage layer 102 made of sand or crushed stone is provided, but it is directly connected with the vertical drainage 101. There is a problem that the efficiency and economic efficiency is very poor because the composition is not made.

On the other hand, because the catchment manhole 105 provided in the horizontal drainage layer 102 is exposed to the ground and installed, the catchment manhole is damaged by the passage of heavy equipment during the filling work, or the efficiency of the heavy equipment is reduced, and the water inside the catchment manhole is discharged out of the region. In order to discharge, the construction cost is increased by repeatedly installing and dismantling the temporary pipe, and there is a problem in that resistance factors such as consolidation settlement around the collecting manhole are generated.

The present invention is created in order to solve the conventional problems as described above, it is very economical by laying a general soil on the top of the soft ground so as to smoothly drain the gap water dehydrated to the ground through the vertical drainage installed in the soft ground Excellent, the drainage pipe is formed in the general soil, and the drainage pipe connected to the vertical drainage material is installed in this drainage to discharge the gap water out of the region, so that the horizontal drainage capacity of the gap water is very excellent, and the catchment manhole is buried inside the reclaimed soil. It is intended to provide a horizontal drainage method for dehydration of soft ground that facilitates the movement of equipment and prevents consolidation settlement suppression around manholes.

The present invention for achieving the above object is a general soil laying on top of the soft ground; Vertical drainage is poured into the soft ground through the general soil, arranged in parallel to each other or staggered to form a plurality of alignment lines, the vertical drainage is disposed so that the end is extended to the top of the general soil; A series multiplier formed between the pair of array lines facing each other of the array lines; A parallel drainage formed to connect the vertical drainage adjacent to both sides of the series drainage and the series drainage; A drain pipe continuously connected to the series and parallel drains; A water collecting main pipe connected to the drain pipe and collecting the water of the gap; and a water collecting manhole connected to the water collecting pipe to store the gap water and having an upper portion sealed; A discharge and drain pipe installed to extend from the water collecting manhole to the water draining side hole to drain the gap water stored in the water collecting manhole; A buried layer disposed in the parallel and series drainage channels to protect the drain pipe; A reusable soil layer laminated on the general soil to cover a collecting manhole; Characterized in that consisting of.

In addition, the drain pipe, the left, the right branch pipe is provided to be connected to the vertical drainage, characterized in that the upper and lower branch pipes are provided to be connected continuously up and down.

In addition, the left, right, upper, and the lower end of the branch is characterized in that it further comprises a wrinkle portion.

In addition, an exhaust hole communicating with the inside of the drain pipe is formed at the center of the drain pipe, and a filter is provided to prevent foreign matter from flowing into the exhaust hole.

In addition, it characterized in that it further comprises a geotextile installed between the soft ground and the general soil.

Meanwhile, the present invention includes the steps of laying civil fibers on the upper part of the soft ground and laying general soil on the upper part; Placing a plurality of vertical drainage materials arranged in a lattice or triangular shape and protruding to the ground through the general soil into the soft ground; Placing the inside of the soft ground through the general soil, and arranged in parallel or staggered to form a plurality of alignment lines, and placing a plurality of vertical drainage materials whose ends extend to the top of the general soil; Forming a series drainage channel by discharging the array lines facing each other in one direction among the array lines; Forming parallel drainage channels on both sides of the series drainage channel such that vertical drainage material adjacent to both sides of the series drainage channel connects the series drainage channel; A pipeline forming step connected to the vertical drainage through the parallel drainage and the series drainage and extending to the catchment manhole to move the gap water discharged to the ground into the catchment manhole; Installing a discharge and drain pipe connecting the collection manhole and the drain side to drain the gap water stored in the collection manhole to the drain side; Forming a buried layer to bury a parallel drain and a series drain to protect the pipe and to facilitate drainage of the gap water; Stacking reclaimed soil to cover the catchment manhole on top of the soft ground; Characterized in that consisting of.

In addition, the pipe forming step is made by connecting the drainage pipes in the parallel drainage and the series drainage pipes in series, and connecting the drainage pipe at the end after connecting the vertical drainage to be fitted into the left and right branch pipes. It is characterized by.

In addition, the burying step is characterized by burying a selected one or a mixture of ordinary earth or royal sand or a mixture of sand and crushed stone.

In addition, by installing a mobile water pump at the end of the discharge pipe is characterized in that for forcibly draining the gap water collected in the collecting manhole.

Hereinafter, the configuration and operation of the embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a front cross-sectional view showing a soft ground dehydration promoting method of the present invention, Figure 3 is an exemplary view as seen from the plane showing the arrangement of the vertical drainage of the present invention, Figure 4 is a vertical drainage parallel to one embodiment of the present invention Figure 5 is a perspective view showing the installation structure of the drainage and the pipeline in the case of an arrangement, Figure 5 is a plan view showing the installation structure of the drainage and the conduit when the vertical drainage is arranged in parallel by an embodiment of the present invention, Figure 6 is the present invention Fig. 7 is a plan view showing the installation structure of the drainage pipe and the pipeline when the vertical drainage is staggered according to another embodiment of the present invention, Fig. 7 is a sectional view showing the installation state of the drainage pipe of the present invention, and Fig. 8 is a collecting manhole installation state of the present invention. 9 is a cross-sectional view showing a drain pipe according to an embodiment of the present invention.

In order to improve the soft ground (10) through the vertical drainage 20 is poured into the interior of the soft ground (10) to dewater the pore water of the ground to the ground and to horizontally drain the dewatered pore water out of the area.

Referring to the drainage structure of the present invention as follows. As shown in the drawing, the general soil 12 laid on the upper part of the soft ground 10 to be dewatered to a predetermined height, and the general soil 12 is poured into the ground of the soft ground 10 and the predetermined intervals A plurality of vertical drainers 20 arranged to be formed and a drainage channel formed by digging to a predetermined depth between the vertical drainers 20 to facilitate movement of the gap water drained to the ground through the vertical drainers 20; A drainage pipe 30 connected to the drainage pipe and connected to the vertical drainage material 20 to horizontally drain the gap water of the soft ground discharged to the ground through the vertical drainage material 20, and connected to the drainage pipe 30 to obtain a pore water; Collecting water collecting main 60 and the water collecting main 60 connected to the water collecting main 60 to store the gap water flowing through the water collecting main 60 and the top of the water collecting manhole (50) and the water collecting manhole (60) To extend to the drain opening 14 Discharge drainage pipe 53 is installed and installed in the water collecting man (50) hole so that the natural water is drained and drained, the backing layer 15 is installed in the drainage to protect the drain pipe 30, and the general earth and sand The upper part of the (12) is made of reclaimed soil 14 is laminated so that the collecting manhole 50 is covered.

In addition, by laying the geotextiles 11 on the top of the soft ground (10) before laying the general soil (12), by laying the general soil (12) can prevent the sedimentation of the ground.

On the other hand, the vertical drainage 20 is placed so that the upper end protrudes to the top of the general soil 12 to facilitate the connection with the pipe piped on the top of the soft ground (10).

In addition, the vertical drainage 20 is composed of a corrugated pipe drainage formed to surround the outer circumferential surface of the core of the corrugated pipe commonly used with a filter, and a plastic board drainage formed to surround the outer circumferential surface of the plate-shaped core forming a partition with a filter. It is preferable to selectively use according to the placing environment of the soft ground 20.

On the other hand, the vertical drainage 20 is placed in a horizontal grid form when placing the soft ground, as shown in (a) of Figure 3, or is placed to cross each other as shown in (b) to form a plurality of array lines (42).

The drainage channel is formed between the array lines 42 as shown in Figs. 4, 5, and 6, and is formed by breaking general soil between the pair of array lines 42 facing each other of the array lines 42. It consists of a drainage channel 40, a parallel drainage channel 40 formed to connect the vertical drainage 20 adjacent to both sides of the series drainage passage 40 and the series drainage passage 40.

The drain pipe 30 is continuously installed in the parallel drain 41 and the series drain 40 to drain the gap water, the upper branch pipe 33, the lower branch pipe 34, the left branch pipe 31, the right branch pipe (32) is provided in all directions, the upper branch pipe 33 and the lower branch pipe 34 are piped in a series drainage channel 40, and the left branch pipe 31 and the right branch pipe 32 are connected to the parallel drainage channel 41. Piped.

That is, the upper branch pipe 33 of the drain pipe 30 to be connected to the lower branch pipe 34 is connected so that the drain pipe 30 and the drain pipe 30 are connected to each other, the left and right branch pipes (31, 32) Is connected to fit with the vertical drainage 20 protruding to the ground through the general soil 12 to form a pipeline consisting of horizontal drainage.

In addition, the drain pipe (30) of each branch pipe (31) (32) (33) (34) so that the interconnection between the drain pipe 30 and the vertical drainage 20 can be easily connected and have more flexibility in the ground compaction behavior. The end portion is provided with a corrugated portion 35 in the form of a corrugated pipe.

In addition, the upper branch pipe 33 and the lower branch pipe 34 of the drain pipe 30 is configured to have a larger size of the selected branch pipe is configured to facilitate the continuous fitting of the drain pipe (30).

In addition, the drain pipe 30 as shown in Figure 9, the left and right branch pipes 31, 32 are formed to be shifted up and down based on the upper and lower branch pipes 33, 34, the left, through the vertical drainage 20 The gap water flowing into the right branch pipes 31 and 32 is configured to smoothly flow in the upper and lower branch pipes 33 and 34 without interfering with each other.

In addition, an exhaust hole 36 penetrating into the upper center portion of the drain pipe 30 is formed so that the air in the drain pipe 30 is discharged so that the water is smoothly drained and a filter ( By attaching 37), the backing material is prevented from flowing into the drain pipe 30 to block water flow.

On the other hand, the catchment manhole 50 is formed so that a part is inserted into the inside of the general soil 12, and the outer surface is formed to be corrugated, and a plurality of perforations 51 penetrating the inside and outside along the circumference is provided so that the inflow of the gap water It is easy, and the aggregate is filled inside.

In addition, the upper surface of the collecting manhole 50 is provided with a lid 52 for sealing the inside of the manhole to prevent the inflow of the fill material to the inside during the lamination of the reclaimed soil 13.

In addition, the catchment manhole 50 is to allow the natural water to drain the gaps collected therein, but if more rapid drainage is required to install a mobile water pump 54 at the end of the discharge drainage pipe 53 to the inside of the catchment manhole Forced drainage may be required.

The drainage method of the gap water of the soft ground through the drainage structure as described above is as follows.

First, the geosynthetic fiber 11 is installed on the upper part of the soft ground 10, and then the general soil 12 is placed on the upper part of the soft ground 10 through the general soil 12, the vertical drainage material Placing horizontally, or staggered with each other to form a plurality of array lines 42 so that their ends protrude to the ground.

When the pouring of the vertical drainage material 20 is completed, a drainage path is formed for smooth drainage of the gap water discharged to the ground through the vertical drainage material 20, and the drainage paths are arranged in pairs facing each other in the array line 42. And a series drainage channel 40 formed by breaking the general soil between the 42 and the vertical drainage 20 adjacent to both sides of the series drainage passage 40 and the series drainage passage 40 so as to be connected to each other. It consists of a parallel drainage channel 40.

Connected to the vertical drainage 20 and the drainage parallel drain 41 and the series drain 40, the pipe is connected to the vertical drainage 20 to extend to the catching manhole 50 so that the gap water discharged to the ground is moved to the catching manhole 50 Piping the drain pipe 30, connecting the drain pipe 30 and the water collecting main pipe 60 connected to the collecting manhole 50 to form a pipe.

When the drainage channel 30 and the conduit are formed as described above, the catchment manhole 50 and the drainage side port 14 are connected to each other so that the gap water stored in the catchment manhole 50 can be drained to the drainage side port 14. 50) After the discharge drainage pipe 53 is installed to allow the internal void water to drain and drain naturally, the parallel drain passage 41 and the serial drainage passage 40 are buried to protect the pipeline and facilitate the drainage of the gap water. (15) is formed.

When the parallel drain 41 and the series drain 40 are completed, the reclaimed soil 13 is laminated on the soft ground 10 to cover the catchment manhole 50 on the soft ground 10. Consolidation is applied to the soft ground (10) by applying the load, and thus the gap water of the soft ground (10) is discharged to the upper portion of the soft ground (10) through the vertical drainage (20), and the discharged gap water is the pipe and the drain ( According to 30, it is naturally drained and horizontally drained.

As described above, the present invention is to prevent the compaction phenomenon caused by the movement of construction equipment by laying the general soil 12 on the soft ground 10 as described above to prevent the horizontal drainage performance is reduced.

In the forming of the pipe line, the drain pipe 30 is disposed downstream of the drain pipe 30 located on the upstream side after the drain pipe 30 is installed in the parallel drain 41 and the series drain 40. Connect the upper branch pipe (33) of the inside to be fitted, and the left and right branch pipes (31, 32) are connected to the vertical drainage 20 is inserted into the pipe after the pipe in parallel drainage, and continuously By connecting the drain pipe 30 located at the end of the drain pipe 30 to be connected to the water collecting main pipe 60 to form a pipeline.

As described above, the present invention is connected to the branch pipe of the drain pipe 30 located on the upstream side so as to be fitted inside the branch pipe of the drain pipe 30 located on the downstream side, so that the horizontal drainage of the gap water is made more smoothly. Vertical drainage is also made to drain smoothly by being fitted inside the left, right branch pipes (31) (32).

In addition, the present invention by filling the manhole 50 is covered with the interior of the reclaimed soil 13, the landfill work by installing the discharge drainage pipe 53 is easy to move the construction equipment during the filling work and drained in a natural flow method At the same time to install a temporary drain pipe in the collecting manhole 50 to eliminate the conventional inconvenience of draining at a predetermined time interval.

On the other hand, the backing layer 15 formed by burying the parallel drainage passage 41 and the serial drainage passage 40 can again bury the destroyed general earth and sand 12, in order to achieve a smooth drainage. While it is possible to bury the mixed material of the mass or sand and crushed stone, it is also possible to bury the mixture of all the general earth and sand royal sand, sand and crushed stone.

The present invention as described above is connected to each other when the coupling of the drain pipe 30 or the vertical drainage 20 and the drain pipe 30 is inserted into a watertight state when the pipe is formed, the interpolar water is drained through the pipe, as well as The discarded parallel drain 41 and the serial drain 40 are to be drained, thereby forming a blind-type drainage channel in the form of a channel.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

The effect of the present invention can be expected by the configuration and action as described above, by laying a general earth and sand easy to supply on top of the soft ground, the purchase cost is low, the disclosure cost is reduced, reducing the compaction effect by construction equipment This prevents deterioration of drainage performance, and does not require sand or crushed stone. Ultimately, it prevents environmental damage caused by sand and crushed stone collection, and creates horizontal blind drainage by connecting vertical drainage and drain pipes. It is improved and it is a very useful invention that does not expose the collection manhole to the ground, preventing the collection manhole from being damaged or deteriorating the efficiency of the heavy equipment due to the passage of heavy equipment during the fill work.

Claims (9)

General soil laying on top of the soft ground; Vertical drainage is poured into the soft ground through the general soil, arranged in parallel to each other or staggered to form a plurality of alignment lines, the vertical drainage is disposed so that the end is extended to the top of the general soil; A series multiplier formed between the pair of array lines facing each other of the array lines; A parallel drainage formed to connect the vertical drainage adjacent to both sides of the series drainage and the series drainage; A drain pipe continuously connected to the series and parallel drains; A water collecting main pipe connected to the drain pipe and collecting the water of the gap; and a water collecting manhole connected to the water collecting pipe to store the gap water and having an upper portion sealed; A discharge and drain pipe installed to extend from the water collecting manhole to the water draining side hole to drain the gap water stored in the water collecting manhole; A buried layer disposed in the parallel and series drainage channels to protect the drain pipe; A reusable soil layer laminated on the general soil to cover a collecting manhole; Pore water drainage structure of the soft ground, characterized in that consisting of. The method of claim 1 The drain pipe, the left and right branch pipes are provided to be connected to the vertical drainage, and the upper and lower branch pipes are provided to be connected continuously up and down, the soft ground pore water drainage structure. The method of claim 2, Pore water drainage structure of the soft ground, characterized in that it further comprises a wrinkle portion at the end of the left, right, upper, lower branch pipes. The method according to any one of claims 1 to 3, An exhaust hole communicating with the inside of the drain pipe is formed at the center of the drain pipe, and a filter for preventing foreign matter from flowing into the exhaust hole is provided. The method of claim 1, Pore water drainage structure of the soft ground, characterized in that further comprises a geotextile installed between the soft ground and the general soil. Laying civil fibers on top of the soft ground and then laying general soil on the top; Placing a plurality of vertical drainage materials arranged in a lattice or triangular shape and protruding to the ground through the general soil into the soft ground; Placing the inside of the soft ground through the general soil, and arranged in parallel or staggered to form a plurality of alignment lines, and placing a plurality of vertical drainage materials whose ends extend to the top of the general soil; Forming a series drainage channel by discharging the array lines facing each other in one direction among the array lines; Forming parallel drainage channels on both sides of the series drainage channel such that vertical drainage material adjacent to both sides of the series drainage channel connects the series drainage channel; A pipeline forming step connected to the vertical drainage through the parallel drainage and the series drainage and extending to the catchment manhole to move the gap water discharged to the ground into the catchment manhole; Installing a discharge and drain pipe connecting the water collecting manhole and the water draining side hole to drain the gap water stored in the water collecting manhole to the water draining side hole; Forming a buried layer to bury a parallel drain and a series drain to protect the pipe and to facilitate drainage of the gap water; Stacking reclaimed soil to cover the catchment manhole on top of the soft ground; Pore water drainage method of the soft ground, characterized in that consisting of. The method of claim 6, The pipe forming step is connected to the drainage pipe of any one selected from claim 1 to the parallel drainage and in series drainage and connected continuously, and connected so that the vertical drainage is fitted into the left, right branch pipe end. Pore water drainage method of the soft ground, characterized in that made by connecting the drain pipe located in the collecting pipe connected to the manhole. The method of claim 6, Said burying step is a method for draining the pore water of the soft ground, characterized in that to bury the selected one or a mixture of ordinary earth or royal sand or a mixture of sand and crushed stone. The method of claim 6, Pore water drainage method of the soft ground, characterized in that for installing the mobile water pump at the end of the discharge drainage pipe forcibly draining the gap water collected in the collecting manhole.

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