KR20150089796A - Method for constructing sea-bottom using eco water-proof structure - Google Patents

Abstract

The present invention relates to a method for constructing a harbor base using an eco-friendly waterproof structure. The purpose of the present invention is to prevent contamination of a surrounding fish farm by not discharging contaminants and suspended matters disturbing the ground outside a waterproof structure during construction of a base for building a harbor structure. According to the present invention, the method for constructing a harbor base using an eco-friendly waterproof structure comprises: a first step to construct a waterproof structure whose upper and lower parts are opened respectively, and having multiple fixing bits in the front end part under water, and to construct the fixing bits of the waterproof structure to maintain a state of being fixed only on the impermeable ground containing a clay layer; a second step to discharge seawater inside the waterproof structure to the outside of the waterproof structure after the above first step; and a third step to construct a pile and drill a pile hole at a uniform depth from the bottom surface of a work space in the work space formed inside the waterproof structure through the second step. Moreover, the method for constructing a harbor base using an eco-friendly waterproof structure may furthermore comprise a fourth step to sort slime generated in the above third step into waste and purified water by sediment.

Description

METHOD FOR CONSTRUCTING SEA-BOTTOM USING ECO WATER-PROOF STRUCTURE USING ECO-

The present invention relates to a port basic construction method using an environmentally friendly structure, and more particularly, to a method of constructing a port structure, which comprises disturbing a ground surface during construction of a port structure, This paper deals with the basic construction method of harbor using eco-friendly water structure that can prevent contamination of farms.

Generally, for the construction of transportation infrastructure in the book area, marine ports are being developed. The harbor is constructed by supporting the ground at the bottom of the seabed. At this time, the foundation (piles, dredging, replacement of the soil improvement agent, etc.) should be constructed to strengthen the ground firmly.

Conventionally, the basic construction method of the port is made from the order of the order structure (such as caisson). At this time, the order structure is inserted to the design depth of the pile and the ground and the sea water in the order structure are discharged to the outside to create a working space It is common to construct piles in order structures.

At this time, since all the ground layers from the sea floor to the design depth are disturbed, the pollutants float to the sea level, and these floats cause a complaint by destroying the culture environment of the surrounding farms.

Also, it is very difficult and time consuming to install the order structure to the design depth (depth at which the pile is installed), and it is also difficult and time consuming to discharge all the ground in the inserted structure.

Japanese Patent Application Laid-Open No. 9-273145 Korean Patent No. 10-0627628

Disclosure of the Invention The present invention has been made to solve the above problems and it is an object of the present invention to provide a harbor construction system capable of preventing the water pollution due to disturbance of the ground by making the order of the improvement of the ground of the sea floor for the construction of the harbor structure, The purpose of the foundation construction method is to provide.

In the port foundation construction method using the environmentally friendly water-dependent structure according to the present invention, an aeration structure in which the upper and lower portions are respectively opened and a plurality of fixation bits are formed at the tip portion is constructed in water, and the fixation bit of the water- A first step of constructing to maintain a fixed state; A second step of discharging seawater from the first stage to the outside of the aeration structure to empty the inside of the aeration structure; The second step is to drill the work space from the bottom of the work space to the depth of the planned depth in the work space formed in the afore-mentioned structure, and to magnify the work using a high pressure water or a high pressure in a bottom- And a third step of constructing the second step.

The method further includes moving the slime (injection material and ground paper soil) generated in the third step to a settling tank using a sludge pump, and then using a sieving method and a dehydrator to screen and sort the sludge with purified water.

According to the port foundation construction method using the environmentally friendly water-dependent structure according to the present invention, the water-based structure is installed only to the clay layer, which is the impervious layer, and the seawater is pumped into the water-based structure to secure the working space by the clay layer and the water- The slurry and the injection material are trapped only in the aqueduct structure, so that the pollutants do not rise to the sea level, and therefore, The material does not destroy the aquaculture environment of the farms around the construction site, thus preventing the occurrence of complaints.

In addition, since the order structure is not installed to the design depth of the pile but it is inserted only in the clay layer which is the impermeable layer for the order, and the order structure can be installed by gravity, the installation is very easy. Therefore, the workability is very good.

In addition, after piercing the pile hole with the diameter and injection device, the slurry and the injection material, which are generated when the pile material is agitated by disturbing the granular material using the high pressure water or high pressure air, are confined only to the water- And the waste water and purified water after the clay work, the purified water is used as the re-work water, and the sludge is chemically treated and used for the backfill of the crushed stone, thereby making it possible to generate economic benefits by recycling resources.

Further, according to the diameter and injection device applied to the present invention, the improvement width by the diameter and injection device can be visually recognized by the naked eye when the high-pressure water or the high-pressure air is used. Therefore, it will show more reliable quality than the injection apparatus of the conventional method.

Figs. 1A to 1E are process drawings of a port basic construction method using an environmentally friendly water-resistant structure according to the present invention.
2 is a view showing another example of an order structure applied to a port foundation construction method using an environmentally friendly structure according to the present invention.
3 is a view showing another example of an order structure applied to a port foundation construction method using an environmentally friendly structure according to the present invention.
FIGS. 4A to 4C are diagrams showing the state of operation of the order structure shown in FIG.
FIG. 5 is a view showing a construction of a diameter and injection device applied to a port foundation construction method using an environmentally friendly structure according to the present invention. FIG.
6A and 6B are operational views of a diameter and injection device applied to a harbor basic construction method using an environmentally friendly structure according to the present invention,
FIG. 6A shows a state in which a light beam is inserted after insertion,
FIG. 6B shows a state where the expandable pile is installed by the diameter and injection device.

As shown in FIG. 1, the basic construction method of the harbor using the environmentally-friendly water-dependent structure according to the present invention is as follows.

1. Prepare an order structure.

As shown in FIG. 1A, the anchoring structure 10 has a cylindrical structure in which upper and lower portions are respectively opened. In order to firmly fix the foundation, a fixing bit 11 having a pointed shape is provided at a tip portion (lower end portion) A lifting ring 12 is provided.

The order structure 10 having such a structure is locked by its own weight and is made of concrete material, iron material, or the like.

In the meantime, the aqueduct structure 10 includes a fixing bit 11, and only a predetermined height section (for example, 30 to 50 cm) is locked from the front end portion. Of course, seawater (including both sea water and river water) ) So that only the inside of the clay layer, the impervious layer, is locked. In other words, the aqueduct structure 10 is locked so as not to escape from the clay layer, and therefore, seawater does not flow into the aqueduct structure 10 because seawater does not flow due to the nature of the clay layer.

The order structure 10 may be formed by stacking two or more unit structures having a predetermined height.

2, in order to prevent the seawater from overflowing into the water receiving structure 10 in response to the water level fluctuation of the seawater, the water receiving structure 10 preferably includes a structure body 10-1, a structure body 10-1, And a water level fluctuation distribution film 10-2 which is vertically connected to the upper portion of the water level fluctuation and ascends and descends according to the water level of the seawater. The sorting film 10-2 may be the same material as the structure body 10-1 or may be a flexible folded or rolled-up film. A frame 10-2 can be applied to reinforce the upper and lower ends and effectively block the inflow of seawater.

Of course, a sealing structure (packing) for the degree is applied to the connecting portion between the structure body 10-1 and the water catching film 10-2.

The height of the sorting film 10-2 can be changed through an actuator such as a plurality of hydraulic cylinders 14. [ The hydraulic cylinder 14 is mounted on the structure body 10-1 and the rod is connected to the upper end portion of the aeration membrane 10-2 so as to lift the aeration membrane 10-2.

Further, the catching film 10-2 may be configured so that the height changes according to the level of the seawater without depending on a separate actuator through the port 15 floating in the seawater. Of course, it is also possible that the actuator and the port 15 are used together.

In addition, the aqueduct structure 10 is constructed by gravity type, and the bottom of the barge line is connected to the bottom of the lifting hoist and the barge line (working line) until the completion of the construction of the pile, The fixing guide 13 is provided at the periphery of the water receiving structure 10 so that the structure 10 can be more easily locked to the installation depth and the locking state can be safely maintained. The fixing guide 13 protrudes from the outer circumferential surface of the athermal structure 10 and rests on the bottom surface of the paperboard so as to restrain the locking of the athermal structure 10 by the ground plane. Since the construction depth of the aqueduct structure 10 will vary depending on the layered structure of the ground, it is preferable that the anchorage guide unit 13 is assembled (anchored, etc.) at an appropriate position in the field.

Figs. 3A to 4C are diagrams showing another example of the order structure. In Fig. 3A to Fig. 4C, the first to third unit-order structures 10A, 10B, 10C (three in Fig. ). For example, the size of the inner diameter is the first unitary structure 10A, the second unitary structure 10B, the third unitary structure 10C, and vice versa. The first unit-order structure 10A is provided with a fixing guide protrusion 13.

The first to third unit-order structures 10A, 10B, and 10C are preferably made of iron, and other materials such as concrete can be used. Also, the shapes are not limited to the shapes shown in the drawings, and various shapes such as circular shapes are possible.

The third unit order structure 10C is fixed to the barge line so that the height of the first to third unit order structures 10A, 10B and 10C is automatically changed in accordance with the change of tide, and the first and second unit order structures 10A And 10B and between the second and third unit-order structures 10B and 10C, the extension guide means for moving the first unit-order structure 10A and the second unit-order structure 10B according to the tilt difference is applied.

The elongating and guiding means is mounted on a pulley rail 10A-1 and a second unit-order structure 10B, for example, formed along the vertical direction at the periphery of the first unit-order structure 10A, A pulley 10B-1 sliding along the pulley rail 10A-1 of the structure 10A, a pulley rail 10B-2 formed along the vertical direction at the periphery of the second unit order structure 10B, And a pulley 10C-1 mounted on the third unit-order structure 10C and sliding along the pulley rail 10B-2 of the second unit-order structure 10B. The first and third unit-order structures 10A, 10B, and 10C are expanded and contracted according to the tilt by the expansion and contraction guide means. At this time, through the gaps between the first and third unit-order structures 10A, 10B, Packing of the rubber material is prepared so as to prevent infiltration of seawater and to prevent the contaminants in the first to third unit-order structures 10A, 10B and 10C from leaking into seawater.

The pulley rails 10A-1 and 10B-2 preferably have grooves opened toward the outside so that the pulleys 10B-1 and 10C-1 can be stably slidable, .

4A, the first to third unit-order structures 10A, 10B and 10C are stored and transported in a folded state, and the uppermost third unit order structure 10C is fixed to the barge line at the construction site And the lifting wire is connected to the lowermost first unit-order structure 10A, and the first unit-order structure 10A and / or the second unit-order structure 10B descend gravity toward the clay layer, This gravitational descent is determined by the tide.

The fixing guide protrusion 13 of the first unit-order structure 10A is seated on the clay layer and the lower end of the first unit-order structure 10A is inserted and fixed in the clay layer.

When the tide changes in this process, the position of the barge line will be raised or lowered on the basis of the clay layer. Accordingly, the first to third unit-order structures 10A, 10B and 10C (When the water level drops) or increases (when the water level rises).

FIG. 4A shows a state in which all of the first to third unit-ordered structures 10A, 10B, and 10C are in a folded state, FIG. 4B shows a state in which only the first unit- The order structures 10A and 10B are drawn.

2. Ordered structure sink.

As shown in FIG. 1B, the lifting structure 10 is lifted by lifting the lifting machine constructed on the barge or the like, and the lifting structure 10 is locked on the seabed.

The depth of penetration of the aqueduct structure 10 can be determined through prior stratum surveys and is only allowed to be inserted into the clay layer from the tip of the aqueduct structure 10 to a certain height. The present invention completely performs the function of the order structure by preventing the seawater from being introduced into the aeration structure 10 due to the nature of the clay layer even if it is inserted only from the bottom of the sea floor to a low depth of view.

3. Positive numbers.

As in Fig. 1C, according to the process up to now, seawater is filled in the aqueduct structure 10 and the seawater in the aqueduct structure 10 is pumped using a water pump. The positive water of the seawater is made until the ground is exposed. Since this seawater is not polluted, it is pumped into the sea (river) as it is. As a result, a dry working space is formed in the water-line structure 10. [

4. Perforation.

As shown in FIG. 1 (d), the pile hole 1 is drilled to a planned depth using a known perforator provided in the barge. The work space is in a dry state without seawater, and the perforator penetrates the pile hole (1) to the depth of the ground while passing through the work space. The number of operations that occur during piercing work may be discharged to the sea (river) as it is the number of pure water and groundwater.

5. Construction of pile.

The expansion pile (2) is constructed by physical force in the weathering soil, sandy soil and clay layer by using the pile pile (1) and the pile by using the pile and pouring device (20). According to the enlarging and injecting device 20, it is not possible to use piles in soft rocks, light rocks, weathered rocks, and ovens, and piles can be constructed by high-pressure water or high-pressure pneumatic methods. Expansive piles can be constructed in weathered soil, sandy soil and clay So that the entire cross section of the pile will be formed as a cross section. That is, in the section of weathered soil, sandy soil, and clay layer, an enlarged section is formed by the diameter and injector 20, and a section by high pressure water or high pressure air is formed in a section such as a soft rock.

As shown in FIG. 5, the diameter and injection device 20 is a multi-pipe, preferably three-pipe, first to third pipes 21, 22, 23, And two or more bending bits 24 that are coupled to each other so as to be folded (spaced) at regular intervals.

The first pipe 21 is provided with an injection material (a mixture of mortar or mortar and compound water, etc.) opened toward the bottom and an injection hole 21a for injecting perforated water. When piercing the pile hole, (Grout material) is injected.

The second pipe 22 has an inner diameter larger than the outer diameter of the first pipe 21 and is disposed at the periphery of the first pipe 21 and extends toward the periphery of the first pipe 21 through an opening medium And a high-pressure air mixing medium).

The first tube 21 injects the punctured water and the injection material and the second tube 22 injects the bulky medium at a high pressure. In other words, the first tube 21 and the second tube 22 inject different media, So that the first tube 21 is connected to the first injection means (connected to the first injection tube 31) of the injection material and the second tube 22 is connected to the second injection means 2 injection tube 32), which is accomplished through the injection block 30.

The first injection tube 31 is connected to the first tube 21 at the upper part of the injection block 30 and the second injection tube 32 is connected to the injection block 30 at the upper part of the injection block 30. [ (22) only at the periphery of the second tube (30).

The third tube 23 has an inner diameter larger than that of the outer wall of the second tube 22 and allows the diameter wire 25 for the operation of the diameter bit 24 to be wired on the inner side (or the peripheral surface).

The diameter bits 24 are in the form of a link which is extended by folding on the circumference of the second tube 22 (or the third tube 23), and the first and second rods 24a and 24b are connected to the rotation axis 24c The free end of the first rod 24a is fixed to the second tube 22 (or the third tube 23) and the free end of the second rod 24b is connected to the pulley 24d Through the second pipe 22 (or the third pipe 23). That is, one end of the diameter-setting wire 25 is connected to the second rod 24b, preferably the pulley 24d, and the other end thereof is connected to the take-up machine 26 so as to be wound by the take- 24a, 24b are folded to enlarge the diameter bit 24.

In order to smoothly run the pulley 24d, it is preferable that a groove-shaped rail is formed on the periphery of the second pipe 22 (or the third pipe 23).

It is preferable that the second tube 22 or the third tube 23 is formed with a holder that prevents the diameter-wise wire 25 from separating from the second tube 22 or the third tube 23 so that the diameter-wise wire 25 moves only along the predetermined path.

The first and second rods 24a and 24b should be kept in an initial state so that the center lines are not aligned in a straight line so that the first and second rods 24a and 24b can be folded by the diameter- A triangular spacer is formed. The spacers allow the connecting portions of the first and second rods 24a and 24b to be spaced apart from the second tube 22 so that the first and second rods 24a and 24b are folded when the diameter-setting wire 25 is pulled. The first and second rods 24a and 24b in the folded state can be unfolded in an initial state when the diameter-setting wire 25 is unfolded. For example, the first and second rods 24a and 24b can be unfolded by gravity Or may be forcibly unfolded by unscrewing the diametric wire 25 and the weight is joined to the pulley 24d of the second rod 24b so that the first and second rods 24a and 24b can be more smoothly and quickly unfolded .

The diameter and injection device 20 is connected to the rotating means (such as a motor) via the sweep so as to rotate the pile hole 1 while rotating.

The diameter and injector 20 having such a configuration can be separated and connected to the monitor 20-1 at the front end and the injector 20-3 at the bottom, In this case, the maintenance cost can be reduced by selecting and replacing only the parts that need to be replaced.

The operation of the diameter and injection device 20 is as follows.

The piercing and inserting device 20 is inserted into the ground (including rotation) to form a pile hole (piercing water injection), and at this time, the piercing bit 24 is kept unfolded as shown in FIG. 6A.

When the monitor at the front end of the diameter and injection device 20 reaches the planning depth and pulls the diameter wire 25 through the take-up machine 26, the first and second rods 24a and 24b The folded diameter bit 24 is opened. Of course, the diametrical width by the diametrical bit 24 depends on the magnitude of the diametrical bit 24.

In this state, when the diameter and injection device 20 is rotated, the diameter bits 24 of the diameter and injection device 20 are rotated to enlarge the pile hole, and the pile hole is enlarged by the high pressure water or the high pressure air. At the same time, grout material, which is an injection material, is injected through the first pipe (21) to fill the pierced hole.

In this way, the diameter and injector 20 is rotated to elevate the pile shaft while injecting the grooved material, thereby constructing the pile 2 having the same cross-sectional area from the bottom of the work space formed by the pile structure to the planned depth 6b). After the piling installation is completed and the diameter and injection device 20 is taken out to the work space and the diameter widening wire 25 is released, the diameter widening wire 25 is released and the pulley 24d is lowered to the first and second rods 24a and 24b ) Is unfolded.

In this process, the slime flows back to the work space and slime is filled in the work space. The slime in the work space is discharged using a slime pump.

6. Screen cleansing slime.

Slime is a mixture of clay, sand, cement and water, and cement is an environmental hazard and needs a sorting process.

In the screening process, the slime discharged through the slime pump is stored in the gypsum to sediment the solids, select the supernatant (ito water), discharge it to the sea (river), and remove the solids through dehydration-curing (coagulant) . The recovered kettle is recycled as a substitute for quartz.

10: Order structure, 11: Fixation bit
12: lifting ring, 13: fixing guide
14: hydraulic cylinder, 15:
10-1: structure body, 10-2:
20: diameter and injection device, 21, 22, 23: first to third pipes
24: diameter bit, 25: diameter wire
26: Winding machine,

Claims (7)

A first step of constructing an order structure in which the upper and lower parts are respectively opened and a plurality of fixation bits are formed at the tip end thereof in water so that the fixation bit of the order structure is kept fixed only in the impermeable ground including the clay layer;
A second step of discharging seawater from the first stage to the outside of the aeration structure to empty the inside of the aeration structure;
Through the second step, a pile hole is drilled from the bottom of the work space to the depth of the planned depth in the work space formed in the aeration structure, and the pile hole is drilled using high-pressure water or high-pressure air. And a third step of constructing an expandable pile by applying an eco-friendly order structure. The method according to claim 1, further comprising a fourth step of sorting the slime generated in the third step by waste water and purified water by a needle set. [3] The system according to claim 1, wherein the aqueduct structure includes a concrete body or a steel structure body, and a water level variation aquifer that is vertically connected to the upper portion of the structure body and is lifted and lowered according to the water level of the seawater. Harbor basic construction method. [3] The method according to claim 1, wherein at least two unit order structures having different inner diameters are connected to each other in a stretchable manner. The method of claim 3 or 4, further comprising: projecting the outer surface of the aqueduct structure away from the fixing bit by a predetermined distance and supported on an upper surface of the impermeable ground during the first stage to determine a fixing depth of the aqueduct structure And a fixing guide stone portion is provided on the inner surface of the foundation. 3. The method of claim 1, wherein the third step comprises drilling and expanding piles of the pile through the piercing and pouring device (20), wherein the piercing and pouring device comprises a piercing hole for piercing the pile, A second pipe 22 disposed at the periphery of the first pipe for injecting high-pressure water or high-pressure air for enlarging and injecting high pressure toward the periphery to enlarge the pile hole, , A circumferential portion of the second pipe (24) which is disposed in a circumferential direction of the second pipe so that the circumferential portion of the second pipe And a diametrically increasing wire (25) for unfolding the diametrically enlarged bit and attaching the diametrically enlarged bit to the second pipe. [7] The apparatus according to claim 6, wherein the diameter bits are composed of first and second rods (24a, 24b) which are vertically arranged on the circumference of the second tube and are foldably connected through a rotary shaft (24c) The free end of the first rod 24a disposed at the top of the first and second rods 24a and 24b is fixed to the second tube 24b and the free end of the second rod 24b is connected to the diameter- The basic construction method of harbor using eco-friendly order structure.

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