KR20060020243A - Connection structure construction method of harbors at deep sea using with caisson - Google Patents

Abstract

The present invention relates to a construction method of a deep sea port in a dry state using a caisson, to secure a dry space in water using a caisson to complete the structure and to construct a continuous construction to minimize the long-term settlement of the structure in the soft support layer and the inequality of the structure The present invention relates to a construction method of deep sea ports using caisson to prevent settlement.

To this end, the present invention has a buoyancy tank therein, a plurality of casing through-holes and a well-known for constructing a continuous structure of a deep sea port using a caisson having a packing means at the bottom thereof, the top of which is open and the bottom of the Coupling a ready-made concrete box having a plurality of pile through holes in communication with the casing through-path of the caisson to the lower part of the caisson by using a turnbuckle; and filling the caisson buoyancy tank and combining the caisson and the ready-made concrete box. In the space between the upper part of the foundation pile and the pile through hole, installing the casing in the casing penetration path of the submerged caisson and installing the foundation pile in the pile through hole of the ready-made concrete box. The process of pouring concrete, the process of draining the water inside the caisson and the ready-made concrete box, And placing concrete in the ready-made concrete box to install a continuous enlarged foundation, forming a wall on top of the continuous expanded foundation, and filling the interior of the wall by using soil, etc., and the wall. Installing a slab so as to be integral with the wall on the top of the structure to complete the structure, and separating the caisson from the ready-made concrete box, characterized in that consisting of the step of floating the caisson.

Accordingly, the present invention can reduce the ground stabilization work period for the installation of deep sea harbor structure, minimize the long-term settlement of the structure in the soft support layer and can prevent the differential settlement of the structure.

Caisson, ready-made concrete box, deep sea port, structure construction method, prevention of uneven settlement

Description

Connection Structure Construction Method of Harbors at Deep Sea Using with Caisson

1 is a cross-sectional view of a breakwater in which a conventional tetrapot is placed.

Figure 2 is a cross-sectional view of the breakwater to earn a conventional block.

3 is a cross-sectional view of a breakwater supported by a conventional anchor.

4 is a cross-sectional view showing a caisson according to the present invention.

5 is a cross-sectional view taken along line AA ′ of FIG. 4.

Figure 6 is a sectional view showing a state in which the pile foundation according to the present invention is installed.

7A to 7H are explanatory views showing a method for constructing a continuous structure of a deep sea port using a caisson according to the present invention.

8 is a plan view showing a continuous caisson according to the present invention.

Figure 9 is a side view showing a continuous caisson according to the present invention.

10 is a plan view showing a connected caisson according to the present invention.

Figure 11 is a side view showing a continuous caisson according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: Superstructure 11: Wall

12: Slavic 13: Joints

14: connecting structure 20: central structure, continuous expansion foundation

30: substructure, foundation pile 40: caisson

41: buoyancy tank 42: packing means

43: casing penetration 44: casing

45: workbench 46: turnbuckle

47: pump 50: ready-made concrete box

51: pile opening 52: temporary bottom plate

53: corrugated protrusion 60: support layer

70: continuous caisson 71: packing means

72: protrusion 80: connected caisson

81: packing means

The present invention relates to a deep sea port structure construction method in a dry state using a caisson, and more particularly, to a deep sea port structure construction method using a caisson to secure a dry space in the water using a caisson to complete the structure and continuous construction .

As it is known, the ground stabilization work is required for forcibly discharging the water in the support layer in order to install the deep sea harbor structure. Particularly, in the case of soft soil such as viscous soil and sedimentary soil layers, the ground stabilization work is essential to reduce long-term settlement.

FIG. 1 is a cross-sectional view of a breakwater in which tetrapots are stacked as an example of ground stabilization work used in the related art.

As shown, the tetrapot 101 is deposited on the support layer 102 to stabilize the ground, and the structure is installed on the stacked tetrapot 101. In this case, since the tetrapot 101 is randomly dropped in water and axles, the lower cross section of the breakwater is excessive, and it is structurally unstable because it is not integrated and is formed in a separate structure, resulting in a shape change due to long-term settlement. .

Figure 2 is a cross-sectional view showing a breakwater accumulating concrete blocks as another example of the ground stabilization work used in the prior art.

As shown, after the base talcum 103 is deposited on the support layer 102 and the ground is stabilized, the concrete block 104 is accumulated on the base talcum 103 to install the structure. In this case, it takes a long time to stabilize the ground, a problem such as loss of the basic talcum 103 due to natural disasters and the like. In particular, in the case of soft ground, there was a problem that the base talcum 103 takes a lot of construction cost.

3 is a cross-sectional view showing a breakwater supported by a permanent anchor in another example in which the ground stabilization work used in the related art is used.

As shown, pile pile 105, which is a kind of pile foundation, enters rock layer 106, embeds steel wire anchor 107 inside and grouts, and then accumulates block 108 on top and installs caisson 109. And the tension of the steel wire at the top of the block 108.

In this case, there is a problem that the precision of manufacturing caisson or slab on the land and assembling in the water, the precision falls, there is a problem that the expert must work because it is underwater.

Breakwaters using the ground stabilization work used as described above are prone to long-term settlement, in particular, in the case of non-uniform soft ground, there is a problem that the structure is damaged in severe cases.

The present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to complete the structure by using a caisson and continuous construction can reduce the ground stabilization work period, to minimize long-term settlement and inequality It is to provide a deep sea port construction method using caisson to prevent settlement.

In order to achieve the above object, the present invention is provided with a buoyancy tank therein, a plurality of casing through-holes, and a well-known thing for constructing a continuous structure of a deep sea port using a caisson having a packing means in the lower part, Is coupled to the bottom of the caisson concrete concrete box having a plurality of through holes communicated with the casing through passage of the caisson at the bottom, filling the buoyancy tank of the caisson and the combination of caisson and the ready-made concrete box A process of submerging in the support layer, a process of constructing a pile in the through hole of the casing passage and the ready-made concrete box of the submerged caisson, and a process of placing concrete in the space between the head and the through hole of the constructed pile; Draining the water inside the caisson and the ready-made concrete box, and the concrete inside the ready-made concrete box A process of installing a continuous enlarged foundation by forming a wall, a process of forming a wall on an upper portion of the continuous expanded foundation, a process of filling the inside of the wall by using earth and sand, and an upper portion to be integrated with the wall on the upper portion of the wall. Installing the slab in the process of completing the structure, and separating the caisson from the ready-made concrete box, characterized in that consisting of the step of floating the caisson.

In addition, the present invention is formed with a protrusion protruding to the side and the protrusion is connected to the side of the completed structure by the watertight packing means, and the process of installing a continuous caisson combined with a ready-made concrete box at the bottom, the continuous caisson Characterized in that the process further comprises the step of completing the structure inside.

In addition, the present invention further comprises a step of installing a connection type caisson coupled between the finished structure is watertightly completed by the packing means and coupled to the ready-made concrete box, and further comprising the step of completing the structure inside the connection type caisson It is characterized by.

With reference to the accompanying drawings as an embodiment of the continuous structure construction method of the deep sea using the caisson according to the present invention having the configuration as described above will be described in detail.

4 is a cross-sectional view showing a caisson according to the present invention, Figure 5 is a cross-sectional view taken along line AA 'of Figure 4, Figure 6 is a cross-sectional view showing a state in which the pile foundation according to the present invention is installed.

As shown, the deep sea harbor structure construction structure using a caisson according to an embodiment of the present invention is a known caisson equipped with a buoyancy tank 41 therein for the construction of the upper structure 10 and the central structure 20 40 and the caisson 40 is coupled to the bottom is composed of a ready-made concrete box 50 for constructing the lower structure (30).

The caisson 40 is used to install the upper structure 10 inside the caisson 40 in the dry state. The buoyancy tank 41 is installed inside the caisson 40, and by filling or draining water in the buoyancy tank 41, the caisson 40 can be lowered and raised. The packing means 42 is installed at the lower part of the caisson 40 to be watertight, and to maintain the airtightness with the ready-made concrete box 50 coupled to the lower part of the caisson 40 to dry the inside of the caisson 40 State can be maintained. In addition, a plurality of casing through passages 43 are formed inside the caisson 40, and the casing 44 passes through the casing through passages 43 to perform pile foundation construction. In addition, the work table 45 is installed at the upper end of the caisson 40 to facilitate the work in the upper portion.

The ready-made concrete box 50 is coupled to the lower portion of the caisson 40. At this time, the ready-made concrete box 50 and the caisson 40 is coupled by a turnbuckle 46, the watertight packing material 42 installed in the lower portion of the caisson 40 by the turnbuckle 46 therebetween. Pressed to maintain airtightness. A pile through-hole 51 is formed at the bottom of the ready-made concrete box 50, and the pile through-hole 51 is provided with a temporary bottom plate 52, and the temporary structure when the lower structure 30 is formed. The bottom plate 52 is removed, and the foundation pile 30, which is the lower structure 30, passes through the pile through-hole 51 and is embedded in the support layer 60. At this time, the foundation pile 30 is installed slightly higher than the bottom surface of the ready-made concrete box (50). Corrugated protrusions 53 are formed in the pile through-hole 51, and the base is filled with concrete between the corrugated protrusion 53 and the upper portion of the foundation pile 30 embedded through the pile through-hole 51. The pile 30 and the ready-made concrete box 50 will be sealed to each other and at the same time will be a solid coupling.

7A to 7H are explanatory views showing a method for constructing a continuous structure of a deep sea using a caisson according to the present invention.

The deep sea harbor structure is constructed in the following manner using the deep sea harbor structure construction structure configured as described above.

First, dredging the lower bed to flatten the support layer 60 and to measure the current state of the water (Fig. 7a), then combine the caisson 40 and the ready-made concrete box 50 and the pile formed in the bottom of the ready-made concrete box 50 The temporary bottom plate 52 is provided in the through hole 51 (FIG. 7B). Subsequently, the combined caisson 40 and the ready-made concrete box 50 is floated in the water and towed to the site, and water is injected into the buoyancy tank 41 of the caisson 40 and settled on the support layer 60 ( 7c). Subsequently, the casing 44 is passed through the casing through passage 43 in the work bench 45 installed on the caisson 40 and the foundation pile 30, which is the substructure 30, is embedded in the support layer 60 (FIG. 7d). Subsequently, concrete is filled and sealed in the space between the embedded foundation pile 30 and the corrugated protrusion 53 of the pile through-hole 51 (FIG. 7E). Subsequently, the pump 47 is installed in the ready-made concrete box 50 and the caisson 40 to drain the work to make the interior dry (FIG. 7F). Subsequently, a continuous enlarged foundation 20, which is a middle structure 20, is installed, and a wall 11, which is an upper structure 10, is installed on the continuous enlarged foundation 20, and the inner space between the walls 11 is included. Filling and installing the slab 12 to be integrated with the wall 11 on top of the wall 11 to complete the structure (Fig. 7g). Subsequently, the turnbuckles 46 coupled with the caisson 40 and the ready-made concrete box 50 are separated and separated from each other, and then the water is drained to the buoyancy tank 41 of the caisson 40 to float the caisson 40 and caisson. 40 is removed to complete construction (FIG. 7H).

Since the deep sea harbor structure constructed using the above method is limited to the construction in large size, it is possible to form a large eyepiece or breakwater using the following structure.

8 is a plan view showing a continuous caisson according to the present invention, Figure 9 is a side view showing a continuous caisson according to the present invention.

As shown, the continuous caisson 70 is connected to the side of the completed structure is watertight with the packing means 71, the lower is coupled with the ready-made concrete box 50 as described above. The continuous caisson 70 is a protrusion 72 is attached to the packing means 71 is connected to the side of the upper structure 10 of the structure completed in Figure 7h, the bottom of the ready-made concrete box 50 is coupled Combined into a state.

Using the continuous caisson having the above configuration, the structure of the deep sea port is continuously constructed by the following method to form a large eyepiece or breakwater.

The continuous caisson 70 and the ready-made concrete box 50 are coupled and coupled to the sides of the superstructure 10 of the completed structure in FIG. 7H and then the joints 13 of the superstructure 10 in the manner described above. Next, complete the continuous structure. This makes it possible to construct a continuous structure on the side of the structure completed in Figure 7h.

10 is a plan view showing a connected caisson according to the present invention, Figure 11 is a side view showing a continuous caisson according to the present invention.

As shown, the connection type caisson 80 is connected between the upper structures 10 of the completed structures are respectively sealed by the packing means 81 on the side, and the bottom of the ready-made concrete box 50 as described above Combined. The connected caisson 80 is connected between the upper structure 10 of the two structures completed in Figure 7h, the bottom is to be coupled to the ready-made concrete box 50 is coupled.

The connecting structure 14 is formed by combining the continuous structure and the continuous structure constructed by the continuous caisson 70 of the deep sea port structure as described above using the connected caisson 80 having the above-described configuration. This will create a large berth or breakwater.

The combined caisson 80 and the ready-made concrete box 50 are combined and coupled to the sides between the superstructures 10 of the two structures completed in FIG. 7H, and then the structure is completed as described above. This allows the construction of a continuous structure by connecting between the completed structure in Figure 7h.

As described above, the present invention can minimize the long-term settlement and to prevent inequality by constructing a continuous structure.

As described above, the present invention can reduce the ground stabilization work period for the installation of deep sea port structure, minimize the long-term settlement of the structure in the soft support layer and can prevent the differential settlement of the structure.

Claims (3)

Known for constructing a continuous structure of a deep sea port using a caisson 40 having a buoyancy tank 41 therein, a plurality of casing through-holes 43, and a packing means 42 at the bottom thereof. In The caisson 40 using a turnbuckle 46 is a ready-made concrete box 50 having an upper portion and a plurality of pile through holes 51 communicating with a casing through-path 43 of the caisson 40 at a lower portion thereof. Bonding to the lower part of the), Filling the buoyancy tank 41 of the caisson 40 and immersing the combination of the caisson 40 and the ready-made concrete box 50 in the support layer 60; Installing the casing 40 in the casing penetration passage 43 of the submerged caisson 40 and constructing the foundation pile 30 in the pile through-hole 51 of the ready-made concrete box 50; A process of pouring concrete in the space between the upper part of the foundation pile 30 and the pile through hole 51; Draining the water inside the caisson 40 and the ready-made concrete box 50, Placing concrete in the ready-made concrete box 50 to install a continuous expanding foundation (20), Forming a wall (11) on top of the continuous magnification foundation (20); Filling the inside of the wall 11 with earth and sand; Installing a slab 12 so as to be integral with the wall 11 on the upper part of the wall 11 to complete the structure; Deep sea port structure construction method using a caisson, characterized in that the caisson (40) is separated from the ready-made concrete box (50) to float the caisson (40). The method of claim 1, A protruding portion 72 protruding from the side is formed, and the protruding portion 72 is connected to the side of the completed structure by watertight packing means 71 and a continuous caisson 70 coupled to the ready-made concrete box 50 at the bottom. Installing the process, Deep sea port structure construction method using a caisson, characterized in that further comprising the step of completing the structure inside the continuous caisson (70). The method of claim 1, A process of installing a connection type caisson 80 coupled between the finished structures that are watertightly completed by the packing means 81 and coupled to the ready-made concrete box 50, Deep sea port structure construction method using a caisson, characterized in that further comprising the step of completing the connection structure (the completion of the connection type caisson 80).

Images