KR200361080Y1 - Caisson Supporting Structure for Deep Water - Google Patents

Abstract

The present invention secures the support of the caisson to be installed in the deep sea to withstand the harsh environment, and relates to a deep caisson support structure for completely blocking the leachate penetrated into the caisson.

To this end, the present invention is a combination of a plurality of panels, the inner panel and the outer panel is composed of a double panel, a plurality of balance tanks are formed in the bottom of the panel located in the bottom of the known caisson provided with watertight, Shear piles are embedded in a plurality of holes perforated inside the caisson, and the lower portion of the caisson is cast concrete wall to be integrally coupled with the shear pile, the shear pile and the lower wall of the caisson by the support wall It is characterized in that to be fixed.

In addition, the present invention further comprises a correction hole drilled a plurality of deeper than the rock layer joint line between the shear piles, and a grouting material to grind the rock layer joint line by grouting the correction hole to block the leachate that penetrates into the caisson inside It is characterized by.

In addition, the present invention is a well-known caisson having a plurality of panels are coupled to the balance tank inside and the watertight portion is provided at the bottom of the panel located on the bottom, the concrete is placed in the lower caisson to fix the caisson to the support layer And a plurality of reinforcement walls, a plurality of reinforcement piles embedded in the caisson, concrete reinforcement in the lower portion of the caisson to be integrally connected with the reinforcement piles, and to contact the inner panel of the caisson, and to the reinforcement wall. It is buried between the reinforcement pile and the inner panel of the caisson is made of a reinforcement beam for supporting the inner panel of the caisson from the reinforcement pile, the reinforcement pile and the reinforcement wall and the lower reinforcement beam by the reinforcement beam To be fixed to the support layer.

Accordingly, the present invention can secure the stability by reinforcing the caisson at the depth to be firmly fixed to the support layer, the deformation of the caisson due to the hydraulic pressure is small, the connection part is small, no leakage occurs, the order effect is large. In addition, there is no need to secure an excessive order wall, as in the conventional construction method of soil excavation, there is an effect that the air can be shortened and the cost can be reduced. In addition, there is an effect that can secure a comfortable underwater work space by blocking the leachate infiltrate in rock bed joint (gyueul).

Description

Caisson Supporting Structure for Deep Water

The present invention relates to a support structure of a caisson used in a large depth, and more particularly, to a structure that can be firmly fixed to the support layer in a poor environment at a large depth.

As is well known, a water barrier method is used to expand, renovate, or repair an underwater structure.

The cell method using a steel sheet pile as a conventional water barrier method is shown in a cross-sectional view in FIG. 1 and a plan view in FIG. 2.

As shown in the figure, the steel sheet pile 101 is connected to the joint using a coupling means such as bolts, and then the soil is piled up to the inside of the steel sheet pile 101 to make a water barrier. In the water barrier method using the steel sheet film 101, the soil wall 102 is filled inside and the soil layer 102 is piled up on the outside, so that the order wall 103 is formed. However, the installation size is larger than the target size of the water barrier, it is difficult to secure a large amount of filling material, there is a concern about environmental damage due to the availability of earth and sand, the installation period is long, and the connection part 104 has a lot of low order effect compared to the cost there was. In addition, damage to the support layer 105 by driving the pile 101 in order to withstand the hydraulic pressure, the grouting cost around the support layer 105 and the pile 101 for the order is high, and the gap between the joint 104 between the piles There is a problem that leaks occur.

In particular, when the depth is deep, there is a lot of deformation of the pile by the water pressure required a number of brace installation and there was a disadvantage that the safety is low. In addition, it is difficult to block the leachate in the rock layer joint (gyuyeol), there is a problem that it is difficult to secure a comfortable underwater workspace.

The present invention has been devised to solve the problems of the prior art as described above, the object of the present invention is to reinforce the caisson firmly fixed at a large depth to ensure stability and to infiltrate the leachate that penetrates in the rock layer joint (gyueul) It is to provide a deep caisson support structure that can be blocked.

1 is a cross-sectional view showing a water barrier method using a steel sheet pile as an example of a conventional water barrier method.

2 is a plan view of FIG.

Figure 3 is a cross-sectional view showing a caisson support structure for large depths according to an embodiment of the present invention.

4 is a detailed view of the order portion of FIG. 3;

5 is a plan view of FIG.

Figure 6 is a cross-sectional view showing a caisson support structure for the depth using the crimping caisson end.

FIG. 7 is a detailed view of the order portion of FIG. 6; FIG.

Figure 8 is a cross-sectional view showing a caisson support structure for a depth in accordance with a preferred embodiment of the present invention.

9 is a plan view of FIG. 8.

10 is a cross-sectional view showing a caisson support structure for large depths according to another embodiment of the present invention.

FIG. 11 is a detailed view of the order portion of FIG. 10; FIG.

12 is a plan view of FIG. 10.

Figure 13a to Figure 13k is a view showing a deep caisson installation process according to the present invention.

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

1: caisson 2: support layer

3: shear pile 3a: rebar

3b: Concrete 4: Order Wall

5: Corrector 6: Grouting material

7: Panel 7a: inner panel

7b: outer panel 7c: double panel

8: watertight part 9: packing material

10: Rock Formation Joint 11: End

12: balance tank 13: hollow part

14: reinforcement wall 15: water collecting well

16: drainage path 17: drainage pump

18: Water level sensor 19: Drain pipe

20: drainage system 21: reinforcement pile

22: reinforcement wall 23: reinforcement beam

30: Work Tool 31: Guide File

In order to achieve the above object, the present invention is a combination of a plurality of panels, consisting of a double panel inside the inner panel and the outer panel, a plurality of balance tanks are formed and the water-tight portion is provided at the bottom of the panel located at the bottom In the caisson, the shear pile is embedded in a plurality of holes perforated in the caisson, and the lower portion of the caisson is made of concrete to be integrally combined with the shear pile, the shear pile and the order wall by It is characterized in that the lower caisson is fixed to the support layer.

In addition, the present invention further comprises a correction hole drilled a plurality of deeper than the rock layer joint line between the shear piles, and a grouting material to grind the rock layer joint line by grouting the correction hole to block the leachate that penetrates into the caisson inside It is characterized by.

In addition, the present invention is a well-known caisson having a plurality of panels are coupled to the balance tank inside and the watertight portion is provided at the bottom of the panel located on the bottom, the concrete is placed in the lower caisson to fix the caisson to the support layer Consisting wall to be made, and if additional reinforcement is required, after the internal caisson drainage work, a plurality of reinforcement piles embedded in the inside of the caisson, concrete is laid in the lower portion of the inside of the caisson is integrally combined with the reinforcement piles of the caisson A reinforcing wall contacting the inner panel and a reinforcing beam embedded in the reinforcing wall and positioned between the reinforcing pile and the inner panel of the caisson to reinforce the inner panel of the caisson from the reinforcing pile. The lower part of the caisson is fixed to the support layer by the reinforcing wall and the reinforcing beam It is characterized in that the lock.

Accordingly, the present invention can firmly fix the caisson used in the large depth to the support layer, to prevent the occurrence of deformation, it is possible to block the leachate penetrated into the caisson through the rock bed joint.

With reference to the accompanying drawings as an embodiment of a large depth caisson support structure according to an embodiment of the present invention having a configuration as described above will be described in detail.

3 is a cross-sectional view showing a caisson support structure for a large depth in accordance with an embodiment of the present invention, Figure 4 is a detailed view of the order of Figure 3, Figure 5 is a plan view of FIG.

As shown, the large depth caisson support structure according to the embodiment of the present invention is a shear pile 3 embedded in the support layer (2) below the caisson 1, and the order of the concrete pour in the lower portion of the caisson (1) (4) and the grouting material 6 which fills in the correction | amendment 5 which blocks the leachate which penetrates into the caisson 1 inside.

The caisson 1 has a plurality of panels 7 are coupled to the inner panel (7a) and the outer panel (7b) is composed of a double panel (7c), a plurality of balance tank 12 is provided, the bottom The watertight part 8 is provided in the lower end of the panel 7 located in. The caisson 1 is installed around the work tool 30 to be worked.

In the watertight portion 8, a packing material 9 is provided at the lower portions of the inner panel 7a and the outer panel 7b, respectively, and the packing material 9 is compressed by the weight of the caisson 1 and is caisson. (1) The interior is sealed.

The shear pile 3 is perforated and embedded in the caisson 1 and serves to firmly fix the caisson 1 to the support layer 2. The shear pile 3 is made of concrete (3a) and is provided with a reinforcing bar (3b) to withstand compression and tensile forces.

The order wall 4 is placed in the lower portion of the inside of the caisson 1 is integrally coupled to the shear pile (3). The order wall 4 not only serves to seal the inside of the caisson 1 like the packing material 9 of the watertight part 8, but also supports the caisson 1 together with the shear pile 3. It serves to fix it firmly in (2).

The corrector 5 is drilled more deeply than the rock bed joint line (water line, the line through which water passes through the rock bed) 10 by drilling a plurality of the shear piles (3).

The grouting material (6) is grouted (Grouting) to the corrector (5) to fill the rock layer joint line to block the leachate that penetrates through the rock layer joint line (10). When the grouting material 6 is grouted to the corrector 5, a portion of the rock layer joint line 10 proximate to the corrector 5 may be filled to block the leachate that penetrates into the caisson 1. do. Therefore, the present invention blocks all leachate water penetrated into the caisson 1 by the grouting material 6 and the packing material 9 of the order wall 4 and the watertight part 8 inside the caisson 1. It is possible to secure a comfortable working space in.

Due to the characteristics of the deep sea water barrier, it is necessary to prepare for natural disasters. Cayenne (1) After the installation of the caisson (1) is completed to increase the bearing capacity, sand or the like is filled in the balance tank (12) or the hollow part (13). After the construction is completed, the filling sand is removed before the demolition of the caisson (1).

Figure 6 is a cross-sectional view showing a caisson support structure for a large depth using a crimping caisson edge, Figure 7 is a detailed view of the order portion of FIG.

As shown, as an example of the caisson 1, the bottom end of the caisson 1 is the end 11, the shear pile 3 and the shear pile embedded in the inner hollow 13 of the caisson 1 It shows the state where the said caisson 1 was firmly fixed to the support layer 2 by the order wall 4 which concrete-pours integrally with (3).

8 is a cross-sectional view showing a caisson support structure for a large depth in accordance with a preferred embodiment of the present invention, Figure 9 is a plan view of FIG.

As shown, in the caisson support structure for a large depth according to the embodiment of the present invention described above, the reinforcing wall 14 is installed in contact with the inside of the caisson (1), the sump well 15, the drainage flow path 16, drainage A pump 17, a water level sensor 18, a drain pipe 19, and a drainage system 20 are further included.

The reinforcing wall 14 is installed to be in contact with the inside of the caisson 1 is to be reinforced to withstand the external underwater pressure inside the caisson (1).

The drainage facility 20 is a collection well for collecting the rainwater penetrating into the caisson (1), such as the drainage flow path 16 to guide the water collecting well (15) and the rainwater penetrating into the caisson (1). 15 and the drain pump 17 installed below the sump 15 and the sump 15 installed in the sump 15 to operate the drain pump 17 when a certain amount of water collected in the sump 15 is collected. The water level measuring sensor 18 and the drain pump 17 is connected to the drain pipe 19 for draining the collected water.

10 is a cross-sectional view showing a caisson support structure for a large depth according to another embodiment of the present invention, FIG. 11 is a detailed view of the order portion of FIG. 10, and FIG. 12 is a plan view of FIG. 10.

As shown, the caisson support structure for a large depth according to another embodiment of the present invention is embedded in the order wall (4) to be cast in the lower portion of the inside of the caisson 1, and the support layer (2) of the lower inner portion of the caisson (1) Reinforcement pile 21 and the concrete in the lower portion of the inside of the caisson (1), the reinforcement wall 22 is integrally coupled with the reinforcement pile 21 to support the caisson (1), and the reinforcement wall (22) It is embedded in the reinforcement beam 23 is reinforced to support the inner panel (7a) of the caisson (1).

The caisson (1) is provided with a watertight portion (8) at the bottom of the panel (7) which is coupled to the plurality of panels (7) located at the bottom as in the embodiment of the present invention. In addition, a balance tank 12 is formed inside the caisson 1 so that the bottom of the caisson 1 is easily increased by filling water or sand in the balance tank 12 when installing the lower bed of the caisson 1. do.

In the watertight portion 8, a packing material 9 is provided at the lower portions of the inner panel 7a and the outer panel 7b, respectively, and the packing material 9 is compressed by the weight of the caisson 1 and is caisson. (1) The interior is sealed.

The order wall 4 is concrete cast on the support layer 2 and serves to fix the caisson 1 to the support layer 2. In addition, the order wall 4 serves to seal the inside of the caisson 1 like the packing material 9 of the watertight part 8.

The reinforcement pile 21 is embedded in the plurality of the caisson 1 is a role of fixing the caisson 1 to the support layer 2 together with the reinforcing wall 22 and the reinforcing beam 23. Do it.

The reinforcing wall 22 is placed in the lower portion of the inside of the caisson 1 is integrally coupled with the reinforcement pile 21 and in contact with the inner panel 7a of the caisson 1 to support the caisson 1 It will be fixed.

The reinforcement beam 23 is buried in the reinforcement wall 22 and is located between the reinforcement pile 21 and the inner panel 7a of the caisson 1 and the caisson 1 from the reinforcement pile 21. It serves to reinforce the reinforcing wall 22 to support the inner panel 7a. Therefore, the inner bottom of the caisson 1 is firmly fixed to the support layer 2 by the reinforcing pile 21, the reinforcing wall 22, and the reinforcing beam 23.

In addition, a large depth caisson support structure according to another embodiment of the present invention, as in the embodiment of the present invention, perforated a plurality of correction spheres (5) between the reinforcing piles 21 and the correction sphere (5) Grouting to fill the rock layer joint line (sunken, the line through which water passes through the rock layer) 10 may block the leachate that penetrates through the rock layer joint line 10 (see FIGS. 4 and 5).

13A to 13K are diagrams illustrating a caisson installation process for a large depth according to the present invention.

The caisson support structure for the depth according to the present invention having the configuration as described above is installed in the following process.

First, the current state of the water is measured, the soil accumulated in the water is removed, and the rock of the support layer 2 is flattened (FIG. 13A). Subsequently, the caisson 1 is manufactured and the packing material 9 is attached to the lower part of the caisson 1 to be launched from the water phase and moved to the site (FIG. 13B). The guide caisson 1 is placed around the immersion position of the moved caisson 1, and water is injected into the caisson balance tank 12 to guide the caisson 1 by guiding the guide ridge 31 (Fig. 13C). ). Subsequently, in the case of the two-row balanced tank crimp caisson, the shear pile 3 is constructed in the lower part of the caisson 1 through the hollow portion 13 inside the caisson 1 (FIG. 13D). At this time, when the inside of the caisson 1 is only a balance tank, construct a fall prevention reinforcement pile 21 of the caisson 1 by the wave pressure inside the caisson 1 (Fig. 13g), and the reinforcement pile 21 and A reinforcing wall 22 to be joined is constructed inside the caisson 1 (FIG. 13H). Subsequently, the correction tool 5 is constructed between the shear piles 3 constructed inside the caisson (FIG. 13E). Next, the grouting material 6 is filled in the correction | amendment tool 5 which ordered and constructed the inside of a caisson. Subsequently, in the case of two rows of balanced tank press caissons, the order wall 4 is constructed on the lower support layer 3 inside the caisson 1 (Fig. 13F). This state becomes a state in which the caisson 1 installation is completed. Subsequently, drainage facilities 20 such as a sump 15, a drainage inlet 16 and a drainage pump 17 are provided inside the caisson 1 (FIG. 13I). Subsequently, the support layer 2 is excavated inside the caisson 1 and the structure is constructed (FIG. 13J). Finally, the water inside the balance tank 12 is drained to lift and move the caisson 1 (FIG. 13K).

As described above, the present invention can secure the stability by reinforcing the caisson at a large depth to be firmly fixed to the support layer, the deformation of the caisson due to water pressure is small, and the connection part is small, so that no leakage occurs, the ordering effect is large. . In addition, there is no need to secure an excessive order wall, as in the conventional construction method of soil excavation, there is an effect that the air can be shortened and the cost can be reduced. In addition, there is an effect that can secure a comfortable underwater work space by blocking the leachate infiltrate in rock bed joint (gyueul).

Claims (3)

A plurality of panels (7) are coupled to the inner panel (7a) and the outer panel (7b) inside the double panel (7c) consisting of a plurality of balance tanks (12) and the bottom of the panel (7) In the known caisson provided with the watertight portion 8 at the bottom, A plurality of shear piles 3 perforated and embedded in the caisson 1, Concrete is placed in the lower portion of the caisson (1) is made of the order wall (4) to be integrally coupled with the shear pile (3), The caisson support structure for the depth of depth characterized in that the lower end of the caisson (1) by the shear pile (3) and the order wall (4). The method of claim 1, A plurality of perforations (5) perforated deeper than the rock layer joint line (10) between the shear pile (3), grouting the rock layer joint line (10) by grouting the corrector (5) inside the caisson (1) A caisson support structure for a deep depth, characterized in that it further comprises a grouting material (6) to block the leachate infiltrated into. In the known caisson in which a plurality of panels 1 are coupled and a balance tank 12 is provided therein and a watertight portion 8 is provided at a lower end of the panel 7 positioned at the lowermost side. A concrete wall under the caisson (1) so as to secure the caisson (1) to the support layer (2); A plurality of reinforcement piles 21 embedded in the caisson 1, Reinforcement wall 22 is placed in the lower portion of the inside of the caisson (1) is integrally coupled with the reinforcement pile 21 and in contact with the inner panel (7a) of the caisson (1), Buried in the reinforcement wall 22 and located between the reinforcement pile 21 and the inner panel 7a of the caisson 1 to remove the inner panel 7a of the caisson 1 from the reinforcement pile 21. It consists of a reinforcing beam 23 to reinforce to support, The caisson support structure for large depths, characterized in that the bottom of the caisson (1) is fixed to the support layer (2) by the reinforcing pile (21), the reinforcing wall (22) and the reinforcing beam (23).