KR101945273B1 - Precast Concrete Block Fastener for Vertical Hole and Vertical Hole Construction Method by Using Fastener - Google Patents

Abstract

The present invention relates to a concrete block fastener for a vertical hole and a method for constructing a vertical hole by using the same, which can prevent separation between concrete blocks or dislocation or detachment of a connection portion of concrete block segments when constructing a wall surface of the vertical hole which is formed as the concrete block segments formed by allowing a plurality of precast concrete blocks having an arc shape to be connected to each other are connected in multiple stages. To this end, a fastener from which a rib protrudes is inserted into a coupling surface or the end of the concrete block segments so that the rib can be perpendicular to a segment panel having the same shape with a cross-section shape of the concrete block segments on the outer circumferential surface or on both sides of the outer circumferential surface and the inner circumferential surface of the segment panel.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete block fastener for a vertical wall,

The present invention relates to a fixture for fixing a concrete block in a vertical straight line, which is constructed by stacking concrete block segments formed by circularly connecting a plurality of arc-shaped precast concrete blocks in a vertically excavated vertical hole More particularly, the present invention relates to a concrete block fixture for a vertical wall, which is applied to a concrete block segment coupling portion or an end portion thereof, in order to prevent a gap between concrete blocks of a wall or a displacement of a connection portion between concrete block segments. will be.

Generally, a vertical hole is formed for the construction of an underground facility such as a subway, a vertical vent of the underground tunnel, and a foundation work of a pier. In such a vertical hole construction process, a vertical hole is formed by excavating the ground, The mold of the same shape as the arch shape of the vertical sphere is installed on the wall of the straight wall, and the concrete is cured to form the outer wall of the straight wall. In the process of installing and removing the mold for forming the outer wall of the straight wall, In addition, it takes additional time to pour concrete and curing.

In order to solve such a problem, as shown in FIG. 1, a concrete block segment formed by connecting pre-cast concrete blocks that have been cured before work is inserted into the excavated vertical hole and laminated to form an outer wall of the vertical hole Method is being carried out. According to such a construction method, the concrete block segments previously cured outside of the water hole are laminated to form the outer wall of the water hole, thereby reducing the construction period by installing and demolishing the formwork and pouring concrete and curing. .

However, when the outer wall of the vertical sphere is formed by such a construction method, there is no fixing means between the concrete block segments, so that it is vulnerable to an external force acting in the lateral direction of the vertical sphere. In particular, If the strength to support the outer side of the concrete block segment is weakened due to the ground settlement, the concrete block segment may be separated from the joint portion of the concrete block segment, and the seismic design may be difficult due to the structural characteristics of connecting the concrete block segments. There was a problem.

In order to solve the above-mentioned problem of occurrence of separation between the concrete block segments, Korean Patent Registration No. 10-1672712 discloses a method of forming a steel wire fixation hole in a connection part between PC blocks for installing a parasitic film to block the inflow of water at the time of construction of a bridge, The PC block has a structure in which a steel wire groove connected to a steel wire fixing hole is formed through a PC block and a tension steel wire is inserted into a steel wire groove through a steel wire fixing hole to thereby fix the PC blocks to each other. It is necessary to separately arrange the positions of the steel wire fixation holes of the PC blocks connected to each other so that they are precisely matched with each other, so that it takes a long time to laminate the PC blocks.

In addition, Japanese Patent Application Laid-Open No. 10-1077821 discloses a structure in which an arc-shaped concrete block having a wedge-shaped protrusion and a concave groove formed therein is coupled to a coupling surface, and a block assembly is inserted and laminated in a vertically- However, the arc-shaped concrete block having the wedge-shaped protrusions and the concave grooves increases the manufacturing cost as compared with the general concrete block, and the wedge-shaped protrusions formed on the coupling surface and the wedge- It is difficult to control the length of the concrete block at the construction site by the concave groove. Therefore, in order to form the concrete block segment according to the design dimension of the vertical groove, the cost of the concrete block material is increased because the concrete block having various dimensions must be manufactured. External force is small due to subsidence The displacement of the concrete block is greater than the height of the wedge-shaped protrusion and the concave groove coupling portion, the stability of the coupling deteriorates or the concrete block is completely detached.

Korean Registered Patent No. 10-1672712 (Registered on October 31, 2016) Korean Registered Patent No. 10-182230 (Registered on January 19, 2018)

In the embodiment of the present invention, when the wall surface of the vertical sphere is constructed by laminating the precast concrete block segments, the concrete block segments are shifted or separated from each other by the action of the earth pressure, the ground subsidence, To thereby improve the stability of the vertical structure constructed by using the concrete block segment.

In the embodiment of the present invention, it is intended to simplify the fixing method between the concrete block segments and to reduce the cost of the construction of the straightening hole and to improve the ease of construction.

In the embodiment of the present invention, it is aimed to minimize the increase of the construction time and the number of processes when the structure for preventing the separation of concrete block segments is applied.

 The recessed segment panel grooves are formed to prevent the step at the joining portion of the concrete block segment and the fastener when the fastener is inserted into the concrete block segment coupling surface.

According to an embodiment of the present invention, a circular concrete block segment formed by connecting a plurality of concrete blocks having an arc shape while excavating a vertical hole is inserted and connected to the excavated vertical holes so as to be connected in multiple stages, Shaped block protrusions and block recessed grooves are formed on the both side edges and on both sides of the horizontal direction side to form a block recess and a block recessed groove so as to prevent the occurrence of separation between the concrete blocks connected to each other and the neighboring concrete block segments, In the precast concrete block segment construction method for constructing a wall surface of a sphere, two or more segment panels each having an arc shape having the same radius as the mating surfaces of neighboring concrete block segments are sandwiched between the concrete block joints, A wedge-shaped rib projection and a rib concave groove are formed on the upper and lower surfaces of the concrete block in the same manner as the block projection and the block recessed groove formed on the vertical side surface of the concrete block, A fixing member having ribs protruding at right angles to the segment panel is formed on both the outer side of the segment panel and the inner arc surface of the segment panel so that vertical and horizontal deviation between the adjacent concrete block segments and the concrete block Wherein a rib groove recessed in the shape of an arc equal to the height and thickness of the rib protruding from the segment panel is formed on the arc surface of the concrete block segment connected to the inner surface of the rib of the fixture, Concrete block segment Plane being a block projection or block the concave groove surface of the segment panel groove is formed recessed in the same arc shape and the segment panel, the engagement portion step generation of a concrete block segments and fixture is prevented when inserting the fastener in a concrete block segment engaging surface.

According to an embodiment of the present invention, a circular concrete block segment formed by connecting a plurality of arc-shaped concrete blocks while excavating a vertical hole is inserted into the excavated vertical holes so as to be connected in multiple stages, In the precast concrete block segment construction method, two or more segment panels of an arc shape having the same radius as the end edge face of the stacked end concrete block segment are sandwiched between the concrete block blocks of the end concrete block segment, A fixing member protruding in the direction of the center of the concrete block segment is formed at both the outer side and the inner round side of the panel so as to be perpendicular to the segment panel to prevent vertical and horizontal deviation of the end concrete block segment between the concrete blocks. The arc concrete surface of the end concrete block segment which is connected to the inner surface of the sphere of the sphere is formed with an arc groove recessed in an arc shape having the same height and thickness as the rib protruding from the segment panel and an end concrete block Segment panel grooves recessed in the same circular arc shape as the segment panel are formed on the edge surface of the end of the segment to prevent the step at the joining portion of the end concrete block segment and the fixture when the fastener is inserted into the edge surface of the concrete block segment .

According to an embodiment of the present invention, the ribs of the fixture mounted between the mating surfaces of the stacked concrete block segments or the end edge surfaces of the concrete block segments fix the side arc surfaces of the concrete block segments, It is possible to prevent the displacement or departure of the concrete block segment when an external force is generated due to settlement or the like, thereby improving the stability of the outer wall of the water jet opening.

According to the embodiment of the present invention, the seismic performance of a concrete block segment having a structure susceptible to earthquakes can be improved.

According to the embodiment of the present invention, when the fastener is inserted in the middle of the stacking process of the concrete block segment, the process of adjusting the joining position of the concrete block segment and the fastener is not performed. Thus, The time required can be shortened.

According to the embodiment of the present invention, it is possible to prevent a stepped portion from being formed at the joint portion between the concrete block segment and the fixture by the rib groove or the segment panel groove formed in the concrete block segment.

According to the embodiment of the present invention, the fixture has a small arc shape, thereby reducing the production cost and weight of the fixture and more effectively preventing the displacement or departure of the concrete block.

According to the embodiment of the present invention, more than two fasteners are connected to each other through the fastener frame, so that more firm fixation is generated between the fasteners, thereby improving the structural safety of the straightener connecting portion.

 According to the embodiment of the present invention, the sealing panel mounted between the fixtures can cover the entire inner or outer arc surface of the concrete block segment on the sealing panel, thereby improving the sealing performance of the vertical hole, It has an effect of preventing damage to the electricity and communication facilities passing therethrough.

1 is a view showing a sectional structure of a vertical hole to which a precast concrete block segment is applied.
2 is a view showing a shape of a concrete block segment formed by connecting concrete blocks.
3 is a view showing a coupling structure of precast concrete block segments to which fixtures are coupled according to an embodiment of the present invention.
4 is a view showing a planar shape of a fixture according to an embodiment of the present invention.
5 and 6 are cross-sectional views of a fixture according to an embodiment of the present invention.
FIG. 7 is a view showing a pre-cast concrete block segment coupling structure in which a wedge-type coupling surface to which a fastener having a wedge-type coupling surface is coupled is formed according to an embodiment of the present invention.
8 and 9 are views showing a cross-sectional shape of a fastener having a wedge-shaped engagement surface according to an embodiment of the present invention.
FIG. 10 is a view showing a coupling structure of a fastener applied to a precast concrete block segment in which a coupling groove is formed according to an embodiment of the present invention. FIG.
11 is a view showing a planar shape and a cross-sectional shape of a fastener having ribs formed in both directions in a central portion according to an embodiment of the present invention.
12 is a view showing a coupling structure of a fixture applied to a corner surface of an end portion of a concrete block segment according to an embodiment of the present invention.
13 is a view showing a shape of a concrete block segment in which a rib groove is formed according to an embodiment of the present invention and a coupling structure with a fixture.
FIG. 14 is a view showing a coupling structure of precast concrete block segments to which a sealing panel according to an embodiment of the present invention is applied.
FIGS. 15 and 16 are views showing the shape of an arc-shaped fixture applied to a connection portion of a concrete block according to an embodiment of the present invention, and a coupling structure with a concrete block segment. FIG.
17 is a view showing a structure of a vertical sphere to which a fastener is rigidly connected to each other by a fastener frame according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The present invention will be described in detail with reference to the portions necessary for understanding the operation and operation according to the present invention. In describing the embodiments of the present invention, description of technical contents which are well known in the art to which the present invention belongs and which are not directly related to the present invention will be omitted. This is for the sake of clarity of the present invention without omitting the unnecessary explanation.

In describing the constituent elements of the present invention, the same reference numerals may be given to constituent elements having the same name, and the same reference numerals may be given to different drawings. However, even in such a case, it does not mean that the corresponding component has different functions according to the embodiment, or does not mean that it has the same function in different embodiments, and the function of each component is different from that of the corresponding embodiment Based on the description of each component in FIG.

Also, the technical terms used herein should be interpreted in a sense generally understood by a person skilled in the art to which the present invention belongs, unless otherwise defined in this specification, and it should be understood that an overly comprehensive It should not be construed as a meaning or an overly reduced meaning.

Furthermore, the singular forms " a " as used herein include plural referents unless the context clearly indicates otherwise. In the present application, the term "comprising" or "comprising" or the like should not be construed as necessarily including the various elements or steps described in the specification, Or may be further comprised of additional components or steps.

As shown in FIG. 2, the concrete block segment 10 according to the embodiments of the present invention is defined as a ring-shaped structure formed by connecting a plurality of concrete blocks 11 forming an arc shape to each other, The block segment 10 and the concrete block 11 are distinguished from each other and the construction of each embodiment will be described.

In the first or second embodiment of the present invention, concrete block segments 10 formed by connecting a plurality of arc-shaped concrete blocks 11 and having the same shape as a wall surface of a vertical sphere are stacked in multiple stages to form outer walls of a vertical sphere, As shown in FIG. 3, the fixture 20 is fitted to the joint portion between the concrete block segments 10 stacked adjacent to each other.

」형상을 이루게 된다.4A and 4B and FIG. 5, the fixture 20 according to the first embodiment is formed on the outer circumferential surface or the inner circumferential surface of the segment panel 21 having the same shape as the engagement surface shape of the concrete block segment 10 to be stacked The rib 22 is protruded so as to be perpendicular to the segment panel 21 on either side so that the cross-sectional shape of the fixture 20 is "

Shape.

」 또는 「

」형상을 이루게 되며, 이때 돌출된 리브(22)의 형상 및 길이는 도 6에 도시된 형상에 한정되지 않고 다양하게 변형되어 적용될 수 있다.In the second embodiment of the present invention, as shown in Fig. 4C and Fig. 6, the ribs 22 in the fixture 20 according to the first embodiment are formed in both the outer and inner circumferential surfaces of the segment panel 21, The cross-sectional shape of the substrate 20 is "

" or "

The shape and length of the protruded rib 22 are not limited to the shape shown in FIG. 6 but may be variously modified.

In the third or fourth embodiment of the present invention, a plurality of concrete blocks 11 having an arc shape are connected to form a concrete block segment 10 having the same shape as a wall surface of a vertical sphere, Shaped block protrusions 12 and block recessed grooves 13 are formed on the both sides of the concrete block 11 in the vertical direction and on the both side edges of the horizontal direction as shown in FIG. The fastener 20 is inserted into the joint portion between the concrete block segments 10 in which the wedge-shaped engagement surfaces are formed.

」형상을 이루게 된다.The fixture 20 according to the third embodiment has the same shape as the joint surface shape of the concrete block segment 10 in which the segment panel 21 is stacked as shown in Fig. Shaped rib projections 23 and rib concave grooves 24 which are the same as the block projections 12 and the block recess grooves 13 are formed on the outer peripheral surface or the inner peripheral surface of the segment panel 21, 22 are projected so as to be perpendicular to the segment panel 21, the cross-sectional shape of the fixture 20 becomes "

Shape.

」, 「

」, 또는 「

」 형상을 이루게 되며, 이때 돌출된 리브(22)의 형상 및 길이는 도 9에 도시된 형상에 한정되지 않고 다양하게 변형되어 적용될 수 있다.In the fourth embodiment of the present invention, as shown in Fig. 9, the ribs 22 in the fixture 20 according to the third embodiment are formed in both the outer and inner circumferential surfaces of the segment panel 21, Sectional shape of "

, "

", or "

The shape and length of the protruded rib 22 are not limited to the shape shown in FIG. 9 but may be variously modified.

The fifth embodiment of the present invention is characterized in that a plurality of concrete blocks 11 having an arc shape are connected and concrete block segments 10 formed in the same shape as the wall surface of a vertical sphere are stacked in multi- , As shown in Fig. 10, the engaging groove 14 is formed at the center of the contact surface between the stacked concrete block segments 10 into which the fixture 20 is inserted.

」형상을 이루게 된다.11, the fastener 20 according to the fifth embodiment has a structure in which the segment panel 21 has a shape identical to the shape of the coupling surface of the concrete block segment 10, A rib 22 is formed at a central portion of the surface of the fixing member 20 so that the rib 22 is protruded to be perpendicular to the segment panel 21,

Shape.

The fixture 20 according to the first to fifth embodiments may be inserted into all the mating surfaces of the stacked concrete block segments 10 or selectively inserted only on the mating surfaces of the concrete block segments 10 The engagement groove 14 according to the fifth embodiment is inserted into the concrete block segment 10 into which the fixture 20 is inserted when the fixture 20 is inserted only on the engagement surface of a specific layer of the concrete block segment 10. [ As shown in Fig.

In the sixth and seventh embodiments of the present invention, a plurality of concrete blocks 11 having an arc shape are connected to form a concrete block segment 10 having the same shape as a wall surface of a vertical sphere, And the fastener 20 is inserted into the edge surface of the end portion of the stacked concrete block segment 10 as shown in FIG.

」형상을 이루게 된다.12A, the fixture 20 according to the sixth embodiment has ribs 22 formed on the outer peripheral surface and the inner peripheral surface of the segment panel 21 having the same shape as the end corner surface shape of the concrete block segment 10, The rib 22 protrudes toward the central portion of the concrete block 11 so that the cross section of the fixture 20 has a cross-sectional shape of "

Shape.

」형상을 이루게 되는데, 제7 실시 예에 따른 콘크리트 블록 세그먼트(10)에는 도 12b에서 도시하는 바와 같이 콘크리트 블록 세그먼트(10)의 끝단부 모서리면 중앙부에 결합홈(14)이 형성되어 있어, 상기 결합홈(14)이 형성된 콘크리트 블록 세그먼트(10) 끝단부 모서리면에 고정구(20)가 장착될 때 결합홈(14)과 동일한 형상을 가지는 리브(22)가 결합홈(14)에 끼워지게 된다.In the fixture 20 according to the seventh embodiment, the segment panel 21 has the same shape as the coupling surface shape of the concrete block segment 10, and the segment panel 21, which is in contact with the edge surface of the end portion of the concrete block segment 10, The ribs 22 are protruded at right angles to the segment panel 21 at the central portion of one side surface of the fixing member 21 so that the cross-

As shown in FIG. 12B, the concrete block segment 10 according to the seventh embodiment has the coupling groove 14 formed at the center of the end edge of the concrete block segment 10, A rib 22 having the same shape as that of the engaging groove 14 is inserted into the engaging groove 14 when the fastener 20 is mounted on a corner surface of the end of the concrete block segment 10 having the engaging groove 14 formed therein .

The eighth embodiment of the present invention has the same structure as that of the first to fourth and sixth embodiments and has a structure in which a concrete block segment A rib groove 15 recessed in the same shape as the height and thickness of the rib 22 protruding from the segment panel 21 is formed on the arc surface of the arc tube 10, 13B, rib grooves 15 may be formed on the upper or lower side of the concrete block segment 10, or rib grooves 15 may be formed on the upper and lower sides of the concrete block segment 10, respectively.

17, the ninth embodiment of the present invention has the same configuration as that of the first to fourth embodiments, and as shown in Fig. 17, At least one fixture frame 40 is vertically connected between the lower surface of the fixture frame 21 and the upper surface of the segment panel 21 of the fixture 20 located at the lower side, They are firmly fixed to each other by welding or welding.

The tenth embodiment of the present invention has the same configuration as that of the first to fourth embodiments. When two or more fasteners 20 are fitted to the coupling surfaces of the concrete block segments 10 as shown in FIG. 14, The sealing panel 30 is arranged in an arc shape so as to be in close contact with the concrete block 11, and a plurality of The front surface side of the concrete block segment 10 between adjacent fixtures 20 is covered with the sparse panel 30 and the concrete surface of the concrete block segment 10 is covered with the concrete, Thereby bringing the surface of the block segment 10 into a sealed state.

The eleventh and twelfth embodiments of the present invention are characterized in that circular concrete block segments 10 formed by connecting a plurality of arc-shaped concrete blocks 11 are stacked in multiple stages to form outer walls of vertical slits, The fastener 20 is fitted to the coupling surface between the concrete block segments 10.

」 또는 「

」형상을 이루고, 2개 이상의 고정구(20)가 각각 콘크리트 블록 세그먼트(10)의 결합면에 끼워진 상태로 다른 층의 콘크리트 블록 세그먼트(10)가 적층됨으로써, 적층된 콘크리트 블록 세그먼트(10)간 고정이 발생하게 된다.15, the fixture 20 according to the eleventh and twelfth embodiments has an inner side and an outer side of an arc-shaped segment panel 21 having the same radius as the joint surface of the concrete block segment 10, The ribs 22 are projected so as to be perpendicular to the segment panel 21 on the arc surface so that the cross-sectional shape of the fastener 20 is "

" or "

And the concrete block segments 10 of different layers are laminated with two or more fasteners 20 sandwiched between the mating surfaces of the concrete block segments 10 so that the stacked concrete block segments 10 are fixed .

Particularly, according to the twelfth embodiment, the height and the thickness of the ribs 22 protruding from the segment panel 21 and the thickness of the ribs 22 protruding from the segment panel 21 and the thicknesses of the ribs 22 protruding from the segment panel 21 are formed on the arc surface surface of the concrete block segment 10 connected to the inner surface of the rib 22 of the fixture 20 A rib groove 20 formed in either the upper part or the lower part of the concrete block segment 10 is formed as a concave part of the concrete block segment 10 constituting one layer, It is possible to prevent the adjacent concrete blocks 11 from being separated from each other when they are formed at the connecting portion of the reblock 11.

Segment panel grooves 16 recessed in the same arc shape as the segment panel 21 are formed on the surface of the coupling surface of the concrete block segment 10 connected to the surface of the segment panel 21 of the fixture 20, The segment panel grooves 16 may be formed either on the upper surface or the lower surface of the concrete block segment 10 to be laminated respectively or on both the upper surface and the lower surface of the concrete block segment 10. [

」, 「

」, 또는 「

」형상을 이루게 된다.The thirteenth and fourteenth embodiments of the present invention have the same configurations as those of the eleventh embodiment. Further, the concrete block 11 according to the eleventh embodiment has vertically opposite side edges and horizontally opposite side edge surfaces, The upper and lower surfaces of the segment panel 21 of the fixture 20 according to the eleventh embodiment are formed with the projections 12 and the block recessed grooves 13, The wedge-shaped rib projections 23 and the rib concave grooves 24 are formed in the same manner as the projections 12 and the block concave grooves 13,

, "

", or "

Shape.

Particularly, according to the fourteenth embodiment, the height and the thickness of the ribs 22 protruding from the segment panel 21 and the thicknesses of the ribs 22 protruding from the segment panel 21 and the thicknesses of the ribs 22 protruding from the segment panel 21 are formed on the arc surface surface of the concrete block segment 10 connected to the inner surface of the rib 22 of the fixture 20 A rib groove 20 formed in either the upper part or the lower part of the concrete block segment 10 is formed as a concave part of the concrete block segment 10 constituting one layer, It is possible to prevent the adjacent concrete blocks 11 from being separated from each other when they are formed at the connecting portion of the reblock 11.

The block projection 12 and the block recessed groove 13 formed in the segment panel 21 have the same shape as the block recessed groove 13 formed on the surface of the coupling surface of the concrete block segment 10 which is connected to the surface of the segment panel 21 of the fixture 20 The segment panel grooves 16 may be formed either on the upper surface or the lower surface of the stacked concrete block segments 10 or on the upper surface of the concrete block segment 10. [ And the lower surface.

The fifteenth embodiment of the present invention is characterized in that a circular concrete block segment 10 formed by connecting a plurality of concrete blocks 11 having an arc shape is stacked in multiple stages to form an outer wall of a vertical sphere, The fastener 20 is fitted on the end edge surface of the end plate 10.

」형상을 이루고, 2개 이상의 고정구(20)가 각각 끝단의 콘크리트 블록 세그먼트(10)를 구성하는 콘크리트 블록(11)간 연결부에 끼워져 이웃하는 콘크리트 블록(11)간 고정이 발생하게 된다.16, the fixture 20 according to the fifteenth embodiment is provided with an inner and outer arc surface of an arc-shaped segment panel 21 having the same radius as the joint surface of the concrete block segment 10, (22) protrudes toward the center of the concrete block segment (10) so as to be perpendicular to the segment panel (21) so that the cross-sectional shape of the fixture (20)

And two or more fasteners 20 are inserted into the connecting portion between the concrete blocks 11 constituting the concrete block segment 10 at the end of each of the two adjacent fixing blocks 20 so that the fixing between adjacent concrete blocks 11 occurs.

At this time, on the surface of the arc surface of the concrete block segment 10 connected to the inner surface of the rib 22 of the fixture 20, an arc shape having the same height and thickness as the ribs 22 protruding from the segment panel 21 And the joint panel surface of the concrete block segment 10 which is connected to the surface of the segment panel 21 of the fixture 20 is provided with a segment panel groove 21 which is recessed in the same arc shape as the segment panel 21, (16) is formed.

A method of constructing the vertical sphere using the fixture 20 according to the embodiments of the present invention will be described as follows.

In the first to fourth embodiments of the present invention, the concrete block segment 10 formed by connecting the precast concrete block 11 in the same shape as the straight wall outer wall is inserted into the excavated vertical hole, and the concrete block segment The ribs 22 formed in the fixture 20 are inserted into the concrete block segments 10 by inserting the fixtures 20 between the stacked concrete block segments 10 to form the outer walls of the vertical blocks. It is possible to prevent the vertical and horizontal movement between the concrete blocks 11 connected to each other and the concrete block segment 10 from being caused by the contact with the arc surface, The seismic performance of the concrete block segment 10 having a structure susceptible to earthquakes can be improved.

At this time, the fixture 20 is inserted into the bonding surface of the concrete block segment 10, or inserted into the bonding surface of the concrete block segment 10 by two or more layers.

When the ground surface of the vertical sphere is excavated, the concrete block segment 10 stacked by the weight of the concrete block segment 10 is lowered, and the concrete block segment 10 and the fixture 20 are intersected with each other. When the concrete block segment 10 is not inserted smoothly due to its own weight, the concrete block segment 10 and the fixture 20 are separated from the uppermost portion of the vertical groove through the press-fitting device. It is possible to form the straight outer wall more smoothly by pressing in the downward direction.

Since the fixture 20 according to the first to fourth embodiments is formed in a circular shape and does not require adjustment of direction, position or angle when the concrete block segment 10 is coupled, the concrete block segment 10 and the fixture 20 ) By improving the joint stability of the concrete block segment 10 through a simple process of inserting the fixture 20 during the concrete block segment 10 laminating process without the need of a separate fastening position adjustment process between the concrete block segments 10, Thereby simplifying and shortening the time required for construction.

In order to prevent the displacement of the stacked concrete block segments 10 due to the biased earth pressure acting on the vertical axis, the fixture 20 in which the ribs 22 are formed on either the outer peripheral surface or the inner peripheral surface of the segment panel 21, The concrete block segment 10 can be applied by applying the fixture 20 formed with the ribs 22 in both the outer circumferential surface and the inner circumferential surface of the segment panel 21 when the soft ground is formed, The concrete block 11 constituting the concrete block segment 10 can be prevented from deviating to the outside as well as the fixture 20 formed by the formation position of the ribs 22 differently, Thereby reducing the production cost of the fuel cell 20.

In particular, wedge-shaped block protrusions 12 and block recessed grooves 13 are formed on the mating surfaces of the concrete block segments 10 and the vertical and horizontal mating surfaces of the concrete block 11 of the third and fourth embodiments of the present invention Even if displacement occurs between the adjacent concrete blocks 11 or between the concrete block segments 10 due to the action of an earth pressure or an earthquake due to an earthquake or the like, the block protrusions 12 and the block concave grooves 13 and the displacement greater than the height of the block projection 12 and the block recessed groove 13 exceeding the restoration range between the concrete blocks 11 or the concrete block segment 10 Shaped ribs 23 or ribs 23 formed on the ribs 22 when the displacement is generated by the ribs 22 of the fixture 20 to prevent the separation of the concrete blocks 11 or the concrete block segments 10 from occurring, Concave 24 is reverted along the inclined surface forming the recessed groove and the block 13 or the block projections (12) of the concrete block segments (10) so as to further enhance the bonding reliability between the concrete block segment 10.

The construction method of the fifth embodiment of the present invention is basically the same as the construction method of the first to fourth embodiments, and the concrete block segment 10 (10) is formed by inserting the fixture 20 between the concrete block segments 10, The upper and lower surfaces of the upper concrete block segment 10 and the lower concrete block segment 10 in which the fixture 20 is inserted are respectively provided with coupling grooves 14 on the lower and upper surfaces of the upper and lower concrete block segments 10, The ribs 22 of the fixture 20 are sandwiched between the engaging grooves 14 to prevent the vertical and horizontal movement of the concrete block segments 10 from occurring and the fasteners 20 according to the fifth embodiment Can be inserted into each of the joining surfaces of the concrete block segments 10 or inserted into the joining surfaces of the concrete block segments 10 so as to be separated by two or more layers as in the first to fourth embodiments .

In the construction method of the sixth and seventh embodiments of the present invention, the concrete block segment 10 formed by connecting the pre-cast concrete blocks 11 in the same shape as the straight wall outer wall is inserted into the excavated vertical hole, The ribs 22 formed in the fixture 20 can be formed by inserting the fixture 20 into the edge surface of the end portion of the vertical end of the stacked concrete block segment 10. [ Is coupled to the arc surface or coupling groove 14 of the end concrete block segment 10 to prevent vertical and horizontal movement between the concrete blocks 11 constituting the end concrete block segment 10 of the vertical sphere This makes it possible to improve the stability of the outer wall of the water hole during an external action due to subsidence or earthquake, The seismic performance of the lock segment 10 and to improve.

The construction method of the eighth embodiment of the present invention is the same as the construction method of the first to fourth embodiments or the sixth embodiment. The concrete block segment 10 and the fixture The ribs 22 of the fastener 20 are inserted into the rib grooves 15 when the fasteners 20 are fastened to prevent the stacked concrete block segments 10 from being separated from each other.

At this time, since the ribs 22 are inserted into the rib grooves 15 having the same thickness and height as the ribs 22, stepped portions are generated at the joining portions of the concrete block segments 10 and the fastener 20 So that a smooth surface can be formed.

The construction method of the ninth embodiment of the present invention is basically the same as that of the first to fourth embodiments and is characterized in that before the concrete block segments 10 are laminated between the two or more fixtures 20, The fastener frame 40 is mounted to be perpendicular to the upper and lower surfaces of the fastener frame 40 and the fastener frame 40 and the fastener 20 are tightly fixed to each other through fastening members or welding.

When the fixture frame 40 and the fixture 20 are coupled to each other, the concrete block 11 is connected between the fixture ring 20 and the fixture frame 40 to form the concrete block segment 10, The concrete block segment 10 is more firmly fixed by the stationary ring 20 fixed up and down by the stationary frame 40 and the underground storage 20 which requires the prevention of fluid leakage from the inside of the water- When constructing nuclear reactor structures such as nuclear reactors in Jonah Nuclear Power Plant, the structural stability of the junctions of the vertical joints is improved.

The construction method of the tenth embodiment of the present invention is basically the same as that of the first to fourth embodiments. After the concrete block segment 10 and the fixture 20 are stacked alternately to complete the formation of the straight wall outer wall, The sealing panel 30 having the same radius as that of the arc surface of the sealing panel 10 is attached to the end of the rib 22 of two or more neighboring fixtures 20 according to the first to fourth embodiments, The side surface of the concrete block segment 10 is covered by the sealing panel 30 through adhesion or welding so that the sealing performance of the vertical sphere is improved, Thereby preventing a safety accident or a facility damage accident caused by leakage of the water.

The construction method of the eleventh to fourteenth embodiments of the present invention is basically the same as that of the first to fourth embodiments, and the construction method of the eleventh to fourteenth embodiments of the present invention is the same as that of the first to fourth embodiments except that the fixture 20 is formed into a circular arc shape having the same radius as the joint surface of the concrete block segment 10 So that the fixture 20 is installed between the surfaces of the concrete block segments 10 to be stacked.

In this case, when an arc-shaped fixture 20 is inserted into the connection portion of the concrete block 11 constituting the concrete block segment 10, the displacement of the concrete block 11 due to the external force action And by reducing the size of the fastener 20, the production cost of the fastener 20 can be reduced, and the weight of the fastener 20 can be reduced to make it easier to install the fastener 20.

In addition, in the twelfth and fourteenth embodiments, the concrete block segment 10 has a rib 20 and a segment panel 21 on the arc surface and a coupling surface on the concrete block segment 10, respectively, The rib grooves 15 and the segment panel grooves 16 having the same shape are formed so that the ribs 20 and the segment panel 21 are fitted in the rib grooves 15 and the segment panel grooves 16, The ribs 22 and the segment panel 21 are inserted into the segment panel grooves 16 and the stepped portions are prevented from occurring at the joining portions of the concrete block segments 10 and the fastener 20, .

15, the connecting surfaces of the concrete blocks 11 constituting each adjacent layer of the concrete block segment 10 may be laminated such that the connecting surfaces of the concrete block segments 10 are aligned with each other, In the case where the connecting surfaces of the concrete blocks 11 are stacked such that the connecting surfaces of the concrete blocks 11 are aligned with each other, the upper and lower surfaces of the concrete block 10 The rib groove 15 and the segment panel groove 16 are formed in the connecting portion of the block 11. [

The rib grooves 15 and the segment panel grooves 16 are formed in the connecting portion of the concrete block 11 on either the upper surface or the lower surface of the concrete block segment 10 in the case where the connecting surfaces of the concrete blocks 11 are laminated so as to form a zig- And a rib groove 15 and a segment panel groove 16 may be formed at the center of the concrete block 11 on the opposite side.

Particularly, in the fourteenth embodiment of the present invention, wedge-shaped block protrusions 12 and block recessed grooves 13 are formed on the both sides of the concrete block 11 according to the thirteenth embodiment in both vertical and horizontal directions And the wedge-shaped rib projections 23 and the rib recessed grooves 13, which are the same as the block recessed grooves 13 and the block projections 12, are formed on both side surfaces of the segment panel 21 of the fixture 20 according to the thirteenth embodiment, Even if a displacement occurs between the adjacent concrete blocks 11 or between the concrete block segments 10 due to an external force acting on the outer wall of the vertical wall, The coupling stability between the concrete block 11 and the concrete block segment 10 is further improved as described in the third and fourth embodiments.

The construction method of the fifteenth embodiment of the present invention is basically the same as that of the sixth embodiment. The construction method of the fifteenth embodiment of the present invention is the same as that of the sixth embodiment except that the fixture 20 of the sixth embodiment is formed into a circular shape having the same radius as the end corner face of the concrete block segment 10 The arc surface and the corner surface of the end edge of the concrete block segment 10 are provided with a rib groove 15 having the same shape as the rib 20 and the segment panel 21 of the fixture 20, The ribs 20 and the segment panel 21 are sandwiched between the rib grooves 15 and the segment panel grooves 16 so that the fasteners 20 are formed on the edge surfaces of the stacked concrete block segments 10. [ ).

In this case, when an arc-shaped fixture 20 is inserted into the connection portion of the concrete block 11 constituting the concrete block segment 10, the displacement of the concrete block 11 due to the external force action The manufacturing cost of the fastener 20 can be reduced by reducing the size of the fastener 20 and the weight of the fastener 20 can be reduced to make it easier to install the fastener 20, The ribs 22 and the segment panel 21 are inserted into the grooves 15 and the segment panel grooves 16 to prevent a step from occurring at the joining portions of the concrete block segments 10 and the fastener 20 at the ends, So that the surface can be formed.

Although the embodiments of the present invention have been described with reference to the above description, those skilled in the art will understand that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

It is to be understood, therefore, that the embodiments described above are to be considered in all respects as illustrative and not restrictive, the scope of the invention being described in the foregoing specification as defined by the appended claims and their equivalents, Ranges and equivalents thereof are to be construed as being included within the scope of the present invention.

10: Concrete block segment 11: Concrete block
12: block projection 13: block concave groove
14: block engaging groove 15: rib groove
16: Segment panel groove 20: Fixture
21: Segment panel 22: rib
23: rib projection 24: rib concave groove
30: sealing panel 40: fastener frame

Claims (7)

1. A precast concrete block segment for constructing a wall surface of a vertical sphere by stacking circular concrete block segments (10) formed by connecting a plurality of arc-shaped concrete blocks (11)
The outer circumferential surface of the segment panel 21 having the same shape as the shape of the coupling surface of the concrete block segment 10 and the outer circumferential surface of the rib 21 are formed so as to be perpendicular to the segment panel 21, 22 are projected and "

" or "

And the inner side surface of the rib 22 of the fastener 20 is connected to the inner or outer arc surface of the concrete block segment 10 so that the adjacent concrete blocks (10) to prevent vertical and horizontal deviations between the segments (10). delete A circular concrete block segment 10 formed by connecting a plurality of concrete blocks 11 having an arc shape is stacked in a multi-stage manner to construct a wall surface of a vertical sphere, and both sides of the concrete block 11 in the vertical direction and horizontal Shaped block protrusions 12 and block concave grooves 13 are formed on the both sides of the side walls of the block 12 and the concave grooves 13 so that the concrete blocks 11 connected to each other by the engagement of the block protrusions 12 and the block recessed grooves 13, A concrete block segment having a wedge-type coupling surface on which concrete block segments 10 are prevented from being separated from each other,
The upper and lower surfaces of the segment panel 21 having the same shape as the shape of the coupling surface of the concrete block segment 10 are sandwiched between the adjacent concrete block segments 10, Like rib protrusions 23 and rib concave grooves 24 which are the same as the block protrusions 12 and the block recessed grooves 13 formed on the vertical side surface of the side panel are formed on the outer peripheral surface of the segment panel 21, The ribs 22 are projected so as to be perpendicular to the ribs 21,

, "

", or "

And the inner side surface of the rib 22 of the fastener 20 is connected to the inner or outer arc surface of the concrete block segment 10 so that the adjacent concrete blocks (10) to prevent vertical and horizontal deviations between the segments (10). delete Circular concrete block segments 10 formed by connecting a plurality of concrete blocks 11 having an arc shape are stacked in a plurality of stages so as to construct a wall surface of a vertical sphere, Shaped block protrusions 12 and block concave grooves 13 are formed on the both sides of the side walls of the block 12 and the concave grooves 13 so that the concrete blocks 11 connected to each other by the engagement of the block protrusions 12 and the block recessed grooves 13, A concrete block segment having a wedge-type coupling surface on which concrete block segments 10 are prevented from being separated from each other,
A block formed on the vertical side surface of the concrete block 11 on the upper and lower surface of the two or more segment panels 21 having an arc shape having the same radius as the joint surface between adjacent concrete block segments 10, Shaped rib projections 23 and rib concave grooves 24 are formed in the same wedge shape as the projections 12 and the block recessed grooves 13. Segment panels 21 are formed on outer and inner arc surfaces of the segment panel 21, The ribs 22 protrude at right angles to form "

, "

", or "

And each of the fixtures 20 is fitted to the mating surfaces between the concrete block segments 10 so as to be perpendicular and perpendicular to each other between the adjacent concrete block segments 10 and the concrete blocks 11. [ Wherein the horizontal block is configured to prevent horizontal deviation. delete delete

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