KR101198871B1 - Transverse supporting apparatus for standing underground retaining walls being given the earth pressure of backfill - Google Patents

Abstract

The present invention tensions the tie cable installed across the both sides of the pile pile in the middle portion, but by the principle of force equilibrium to distribute the tension force provided on both sides of the pile pile, earth pressure deposited in the space between the outer wall and the outer wall The present invention relates to a support device for an outer wall for transverse mudles that can reliably cope with.

The present invention, the first internal fixing body which is installed at intervals perpendicular to the at least one earth retaining pile to function as a support for introducing a tensile force; A master member in which one end is inserted into the first internal fixing body to introduce a required tensile force; A pair of second internal fixing bodies installed at intervals perpendicular to the other soil retaining pile; An auxiliary tension member having one end fitted to the second internal fixing body and introducing a tensile force corresponding to a required tensile force introduced into the host material; A jack plate for supporting the other end of each of the host material and the auxiliary tension material and dispersing the required tensile strength of the owner material in the auxiliary tension material; An anchor block installed at an end portion of the host material passing through the jack plate; And it provides an outer wall support device for transverse mudwall comprising a fixed block installed at the end of the auxiliary tension member penetrating the jack plate.

Tie cable, pillar, H beam pile, tension member, internal fixture, jack plate, anchor block, fixed block

Description

Transverse supporting apparatus for standing underground retaining walls being given the earth pressure of backfill}

The present invention relates to a diaphragm outer wall support device for supporting so as to cope with the earth pressure acting on the outer wall for earthquake used in the construction of underground structures in civil engineering and building construction, and more specifically is installed across the outer wall of the transverse earthquake The present invention relates to a support device for an outer wall for transverse mud walls that can reliably cope with earth pressure backfilled in the space between the outer wall and the outer wall by introducing a tensile force to the cable.

In general, when the ground excavation for the construction of large concrete structures such as the Seoul Arts Center, the construction of new lands, roads and railways, it is necessary to prevent soil disintegration, settlement prevention, displacement suppression, etc. Reinforcement structure is installed on the excavation surface of the area to maintain the stability of the adjacent ground. As the excavation surface reinforcement structure, the earthen wall is used, and as the earthen method, C.I.P (Cast in place), S.C.W (Soil Cement Wall), earth wall, sheet pile, continuous wall, etc. may be applied.

After the construction of the piling method including the pillar and the foundation, the strut for supporting the basement outer wall, or after supporting the basement outer wall using a ground anchor such as earth anchor (earth anchor) Perform excavation. At this time, when the soil wall can not withstand the earth pressure only by using a tie cable, wire rope, reinforcing bars and the like to reinforce and support the outer wall.

In the reinforcing structure of the retaining wall, a tie cable which is fixed across the retaining wall is mainly used. As the tie cable, a stranded wire is mainly used, and the retaining wall is supported in response to the earth pressure by the tensile force applied to the stranded wire.

In civil engineering and construction, when building roads or building multi-purpose buildings such as culvert boxes and buildings at the same time, building piling piles on excavation surfaces and performing primary fill work in the spaces between the pile piles. do. Then, by installing a tie cable across the both sides of the pile pile to support both sides pile pile in response to the earth pressure according to the fill, and then to perform the side expansion work, or to build road pavement, construction, etc. on the top of the piled ground Done.

When the side expansion work is performed in the series of civil works, the retaining file should be removed. At this time, since the tie cable fixed to the retaining file acts as an interference factor when removing the retaining file, there is a problem that the file cannot be removed. In order to overcome the above problems, conventionally removable tie cables have been proposed in various forms.

As an example of a removable tie cable, Korean Utility Model Registration No. 0277686 and Domestic Patent Registration No. 0141405 are proposed.

As shown in FIGS. 1A and 1B, the former utility model registration No. 0277686 is surrounded by a protective cap 103 at one end of the strand 101 in the slide pipe 100 and connected to the leader line 102 ( A fixed anchoring head 104 and an anchor plate 105 including a 110 and an inner block 112 are mounted, and the wedge 115 holding the strand 101 is provided at the other end of the strand 101, and the wedge. The anchor head 116 which fixes the outer periphery of the 115, and the anchor plate 105 provided perpendicular to the anchor head 116 are attached. As shown in FIG. 1B, the H beam 120 is installed at both sides, and the tensile tie is applied to the strand 101 after passing through the removable tie cable across the two H beams 120. The H beam is made to withstand earth pressure. Then, pulling the leader line 102 after construction is completed, the spring 110 connected to the end of the leader line 102 is pulled, and the inner block 112 and the wedge around it are pushed in so that the play is caused to some extent. In this state, the stranded wire 102 is pulled out and removed.

The technique has a problem in that it is not possible to easily adjust the length and tension of the strand because it is necessary to adjust the position of the wedge coupled to the end while pulling the strand from the outside of the beam to adjust the length and tension of the strand. In particular, since the tie cable of the structure provides a tensile force to the strand wire penetrated to the other pile side based on one pile, it is difficult to support a uniform distribution in response to earth pressure because the tensile force acting on both piles is not uniform. There is a problem, and if the ground is applied in the middle of the file, the soil may be excessively applied to the reference file, which may cause the reference file to collapse.

The latter patent registration 0741405 forms a tie cable 201 as a plurality of strands of PC strand 202b in the PE pipe 202a, and binds each end of each of the PC strands 202b as shown in FIG. The outer surface of the binding head 203 is crimped in the state of being inserted (engaged) into the binding groove of the head 203 to integrally bind the ends of the PC strands 202b and the binding head 203 integrally to support the earth retaining plate. In the mounting hole of the H beam 204, a bolt portion 203a formed at the rear end of the binding head 203 is inserted together with the support tool 205, and the nut 206 is fastened to the rear surface of the H beam 204. The outer side of the nut 206 has a structure in which the protective cap 207 is coupled.

The structure is to fasten the binding head 203, the PC strand wire 202b is bound to the support 205 provided on both sides of the H beam 204, the nut 206 from the outside of the two H beam 204 Tightening to maintain the spacing of both H beams 204. However, since the technique is a structure that tightens the nut 206 on the outside of the H-beam 204, it is impossible to adjust the length of the strand, and it is not easy to adjust the tension because the structure is maintained by tightening the nut from the outside of the pile. There is a problem.

On the other hand, the above-mentioned removable tie-cable structures are applied to a structure that prevents piles from collapsing into the inner space by earth pressure acting on the outside of the wall. However, since the tie cable structures presented above must pass through the piling pile, it is a structure that can be applied only when the side work is completed outside the two piles.

On the other hand, after the piles are set up at intervals in the site, structures such as culvert boxes (PC boxes) are built between the piles, and then piled up and compacted thereon, and roads or additional buildings are built on the piled top. In the case of installation or when the side expansion work to the outside of both piles installed for the construction of a structure such as an underground shopping mall, and when the inside of the pile piles contains a problem that it is difficult to install the tie cable presented above. In particular, when the construction of the H-beam piles for the pillars and the CIP is carried out between the pillars and the H-beam piles, the tie cables that have been proposed in the past have to be fixed through the pillars. In a structure in which tie cables are installed in advance, compaction may not be performed due to fill work. In order to carry out the filling work, it is necessary to give tension to each cable after fixing the tie cable from the lower side of both piles, and to perform the work to make the filling work after repeating the filling. .

In addition, in the tie cable structure, since the tensile force for maintaining the gap between the two piles does not act uniformly on both piles, in the second operation of filling and compacting the space inside the two piling piles, the two piling piles are filled. There was a problem that could collapse on the side of the building by the pressure.

In particular, the conventional tie cable has a structure in which the H-beam is fixed by penetrating, there is a problem that can not be installed when the tension between the pillar and the CIP pile is required. Therefore, a separate tie cable structure that can support the CIP pile is required.

Accordingly, the present invention has been proposed to solve the above problems, the tension between the two cable in the middle of the tie cable installed across the pile, while the tension force provided on the both sides of the pile pile by the principle of force equality It is an object of the present invention to provide a support device for an outer wall for transverse mud walls that can reliably cope with earth pressure built up in the space between the outer wall and the outer wall.

In addition, the present invention is to remove the interference factor of the tie cable according to the fill by the built-in removable load-bearing body in the earth retaining pillar and the work after compaction and tie cable installation work for transverse soil film for transverse earthquake Another object is to provide an outer wall support device.

In addition, the present invention can be effectively used when one side supports the retaining wall, the other side when providing the tension between the pile at the site of the side expansion work is completed, in particular pillars and columns, pillars and H beam pile, H beam pile Another object of the present invention is to provide an outer wall supporting device for transverse mudles that can be effectively used when filling a space between the H beam pile and the H beam pile.

In order to achieve the above object, the present invention, the first internal fixing body which is installed at intervals perpendicular to the at least one earth pile file to function as a support for introducing a tensile force; A master member in which one end is inserted into the first internal fixing body to introduce a required tensile force; A pair of second internal fixing bodies installed at intervals perpendicular to the other soil retaining pile; An auxiliary tension member having one end fitted to the second internal fixing body and introducing a tensile force corresponding to a required tensile force introduced into the host material; A jack plate for supporting the other end of each of the host material and the auxiliary tension material and dispersing the required tensile strength of the owner material in the auxiliary tension material; An anchor block installed at an end portion of the host material passing through the jack plate; And it provides an outer wall support device for transverse mudwall comprising a fixed block installed at the end of the auxiliary tension member penetrating the jack plate.

In the present invention, the retaining pile is characterized in that it is made of one selected from a pillar and a pillar, a pillar and an H beam file, an H beam file and an H beam file.

In particular, the retaining pile is a pillar formed with a plurality of grooves vertically spaced so that the first internal fixing body; And an H beam file installed at a position facing the pillar. At this time, the groove of the pillar is filled with a grout so that the first internal fixture is fixed, the H-beam pile is installed in a position corresponding to the groove of the pillar and a pair of housings for supporting the second internal fixture, and And a bearing plate for fixing the second inner fixture to the pair of housings, respectively.

As another example, the block file may be formed of an H beam file. In this case, the H-beam piles on one side are vertically spaced apart, and include a first housing for mounting the first internal fixture therein and a first bearing for fixing the first internal fixture to the first housing. A plate, the other H beam pile being installed at a position corresponding to the first housing and fixing the pair of housings for supporting the second inner fixture, and respectively fixing the second inner fixture in the pair of housings; It characterized in that it comprises a bearing plate for.

According to the characteristics of the present invention as described above, the earthwork work in the middle of the piles erected on the excavation surface, and then perform the side expansion work, or after the construction of the underground structure in the earthwork pile piles in both spaces In the construction, the inner body is embedded in the column facing the H-beam pile for the earthquake block, and the owner and the auxiliary tension member are inserted into the inner body at the bottom and installed and then removed after introduction of tensile force. The equilibrium principle of the mutual pulling force at the midpoint is to provide a uniformly distributed tensile force on both piles to reliably respond to the fill pressure.

In addition, the present invention can remove the interference factor of the tie cable according to the filling by fastening and simple filling work by embedding the removable load-bearing body in the earthen pillar and performing the tie cable installation work and the compaction work after the bottom of the lower load body. There is an advantage to doing this.

Hereinafter, with reference to the accompanying Figures 3 to 5 will be described in detail a preferred embodiment of the present invention.

The support device for the transverse cladding wall according to the present invention exhibits a stable support force in response to earth pressure by providing a uniform tension force opposite to both piles by using a principle of force equilibrium on both piles, and filling with a tie cable installation. After using the compaction work together, the air can be drastically reduced.

Figure 3 is a cross-sectional view showing the configuration of one embodiment of the outer wall support device for transverse mudstone according to the present invention, Figure 4 is an enlarged view "A" of Figure 3 for showing the detailed configuration of the anchor block which is the main part of the present invention; 5 is an enlarged cross-sectional view showing the detailed configuration of the first inner body of the present invention.

First, the present invention is composed of pillars and pillars, pillars and H-beam piles for HIP or H-beam piles and H-beam piles as soil piles, and the present embodiment will be described for providing an example of providing tension between the pillars and H-beam piles. .

As shown in the figure, a pillar 2 which is erected on an excavation surface and formed with a plurality of grooves 2a vertically spaced apart; It is embedded in the groove (2a) of the pillar (2) and is fixed by the grout injected into the groove (2a), and serves as a support for introducing the tensile force to the host material to be described later to enable the removal of the tension member after the introduction of the tensile force A first internal fixture (hereinafter referred to as a load bearing body) 4 having a removable, compressive and distributive structure; A master member 6 having one end fitted into the first inner body 2 to introduce a required tensile force; An H-beam pile 8 set up at a position facing the pillar 2; A pair of housings (10) provided in the H beam pile (8) so as to face each groove (2a) of the pillar (2); A second load body 12 having a removable compression-dispersing type structure embedded in the housing 10 and functioning as a support for introducing a tensile force into an auxiliary tension member which will be described later, and allowing the removal of the tension member after the tensile force is introduced; A bearing plate (14) for fixing the second load bearing body (12) to the housing (10); An auxiliary tension member (16) having one end fitted into the second load bearing body (12) and providing a tensile force corresponding to the required tensile force introduced into the host material (6) to the H beam pile (8); A jack plate (18) fitted to the other end of the host material (6) and the other end of the auxiliary tension material (16), respectively, for dispersing the required tensile force of the owner material (6) to the auxiliary tension material (16); Wedges are installed at the other end of the host material 6 to prevent the host material 6 from being separated from the jack plate 18 and to maintain tension between the jack plate 18 and the first lower body 4. An anchor block 20 providing a fixing force; And installed at the other end of the auxiliary tension member 16 to prevent the auxiliary tension member 16 from being separated from the jack plate 18 and to maintain tension between the jack plate 18 and the second load body 12. And a wire tensioner (not shown) installed in the fixed block 22 and the anchor block 20 to provide an allowable tensile force to the host material 6.

Here, the first and second load bearing bodies 4 and 12 may adopt a known structure.

The first and second load bearing bodies 4 and 12 include a main body 32 having a receiving groove as shown in FIG. 5; Wedge assembly 34 is inserted into the receiving groove of the main body 32 and grips the host material and auxiliary tension material; A screw cap 36 fastened to the main body 32; A reaction force transfer film 38 for preventing the wedge assembly 34 from retreating by the reaction force of the tension member generated upon removal of the tension force introduced into the host material 6 and the auxiliary tension member 16; The wedge assembly ring (40) for collecting the wedge assembly 34 is not divided into the basic configuration, this configuration is a patent application No. 0435069, patent registration No. 0411567, patent registration No. 418466, Patent No. 0641314, and the like is a known configuration shown in the internal fixing structure for the tension member removal type ground anchors, so the detailed description thereof will be omitted.

One side of the first lower body 4 passes through the host material 6, the support cylinder 26 for increasing the principal surface friction with the grout placed in the groove (2a) of the column (2), and the support The support plate 28 coupled to the end of the cylinder 26 and extends from the support cylinder 26 to penetrate the support plate 28 to be exposed to the outside of the column 2, the host material to the first lower body 4 It further comprises a guide pipe 30 made of polyethylene (PE) material for inducing insertion to the side.

In the embodiment of the present invention, the outer circumferential surface of the support cylinder 26 is processed in the form of concave-convex (26a) to increase the principal surface friction with the grout. In addition, in the present invention, a heat shrink tube (not shown) may be further installed at the boundary between the guide pipe 30 and the host material 6 to prevent the host material 6 from corrosion.

The anchor block 20 has a structure similar to that of the first and second load bearing bodies. That is, as shown in Figure 4, the body 32 and the wedge assembly 34, the screw cap 36, the reaction force transfer membrane 38 and the wedge retracting ring 40 is included. In addition, the anchor block 20 is installed at the rear end of the wedge assembly 34, and the wire tensioner (not shown) is biting the host material 6 when the wire tensioner (not shown) to pull the host material 6 for the introduction of a tensile force The wedge assembly 34 includes a wedge retraction prevention cap 44 provided with a spring 46 to prevent the wedge assembly 34 from being separated from the main body 32.

In the present invention, the wire tensioner not shown in the drawing and the fixing head is formed with a fixing hole for passing the host material (6); A fixing disc formed at a position corresponding to the fixing hole of the fixing head to support the tensile force of the host material; It is connected to the fixing disk, and has a structure including a cylinder block for providing the required tension to the host material. The wire tensioner of the above-described structure may likewise employ the multi-wire tensioner structure shown in Patent No. 0912768 filed and registered by the present applicant. The jack plate 18 is formed with a first groove 18a for holding the anchor block 20 in one side central portion, and a second groove 18b for holding the fixing block 22 in both sides of the other side. ) Is formed.

In the embodiment of the present invention has been described with respect to the example consisting of the pillar pile and the H-beam pile, in addition, when the two-sided pile file is composed of the H beam pile, one side of the H beam pile is installed at a vertical interval, And a first bearing plate for fixing the first internal fixture therein and a first bearing plate for fixing the first internal fixture to the first housing, wherein the other H beam pile corresponds to the first housing. And a pair of housings for supporting the second inner fixture and a bearing plate for respectively fixing the second inner fixture in the pair of housings.

An operation example of the present invention configured as described above and an installation example of the structure of the present invention will be described.

As shown in FIG. 3, the grooves 2a are formed at intervals perpendicular to the pillars 2. The first inner body 4 is embedded in the groove 2a of the pillar 2, and the grout 2b is poured to cure. In addition, after fixing the pair of housings 10 to the H-beam pile 8 so as to face the grooves 2a of the pillars 2 by welding or the like, the second load-bearing body 12 is inserted into the housing 10. Built. At this time, the second load bearing body 12 is fixed to the bearing plate 14 fixed in the housing 10.

Next, the host member 6 is fixed to the lowermost first lower body 4 and is assisted by the second lower body 12 positioned in the H beam pile 8 so as to face the first inner body 4. The tension member 16 is sandwiched and fixed.

After penetrating the other end of each of the host material 6 and the auxiliary tension material 16 toward the first and second grooves 18a and 18b of the jack plate 18, the anchor block at the other end of the host material 6 Fixing (20) is inserted into the first groove (18a) of the jack plate 18, the fixing block 22 is fixed to the other end of the auxiliary tension member 16 to fix the second groove (18b) of the jack plate 18 ) The cap is separated from the anchor block 20 and the host material 6 is inserted into the wire tensioner to fix the cap.

The installation of the transverse support device for supporting the column 2 and the H beam pile 8 corresponding to the earth pressure is completed by the above-described series of processes.

When the tensile force is removed after applying the required tension force to the host material 6 through the wire tensioner, the tensioned owner material 6 generates a restoring force to be in situ, and pushes the jack plate 18. A tensile force is introduced into the auxiliary tension member 16 located at both sides of the plate 18 in the opposite direction as much as the restoring force. This phenomenon is stopped at the point where the equilibrium of the force is made, as the restoring force of the host material 6 and the opposite tensile force introduced into the auxiliary material 16 corresponding to the restoring force of the host material 6 cancel out. (6) and the auxiliary tension member 16 is to provide the same tensile force to the pillar (2) and the H beam pile (8).

After the tensile force is introduced into each of the lowermost master member 6 and the auxiliary member 16, the filling is carried out and confirmed.

As described above, the process of introducing the tensile force of the host material 6 and the auxiliary material 16 and the filling and compacting work are performed in parallel with the column and the H beam pile 8 from the lower end to the upper part to perform a firm and solid ground composition. Done.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Will be apparent to those of ordinary skill in the art.

Figure 1a is an exemplary view showing the structure of a tie cable according to the prior art,

Figure 1b is a schematic diagram showing the construction state of the tie cable shown in Figure 1a,

Figure 2 is another exemplary view showing the structure of a tie cable according to the prior art,

Figure 3 is a cross-sectional view showing an embodiment configuration of the outer wall support device for transverse mudles according to the present invention,

Figure 4 is an enlarged view of "A" part of Figure 3 for showing the detailed configuration of the anchor block which is the main part of the present invention;

5 is an enlarged cross-sectional view showing the detailed configuration of the first inner body of the present invention.

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

2: pillar 4: first inner body

6: Chairman 8: H beam file

10: housing 12: second inner body

14: bearing plate 16: auxiliary sealant

18: Jack Plate 20: Anchor Block

22: fixed block 26: support cylinder

28: support plate 30: guide pipe

32: main body 34: wedge assembly

36: screw cap 38: reaction force barrier

40: wedge retracted ring 44: wedge retraction cap

46: spring

Claims (9)

A first internal fixing body installed at a distance perpendicular to the at least one soil film pile and serving as a support for introducing a tensile force; A master member in which one end is inserted into the first internal fixing body to introduce a required tensile force; A pair of second internal fixing bodies installed at intervals perpendicular to the other soil retaining pile; An auxiliary tension member having one end fitted to the second internal fixing body and introducing a tensile force corresponding to a required tensile force introduced into the host material; A jack plate for supporting the other end of each of the host material and the auxiliary tension material and dispersing the required tensile strength of the owner material in the auxiliary tension material; An anchor block installed at an end portion of the host member passing through the jack plate to provide wedge tension; And Fixing block installed at the end of the auxiliary tension member penetrating the jack plate ≪ / RTI > When the tensile force is removed after the required tension is applied to the host material, the original position restoring force is generated in the host material, and the auxiliary tension material is introduced in the opposite direction as much as the restoring force of the host material, providing the same tensile force to both pile files. External wall support device for transverse mudstone. The method of claim 1, The earth retaining file is a support device for an outer wall for transverse soil film, characterized in that consisting of one selected from a pillar and a pillar, a pillar and an H beam file, an H beam file and an H beam file. The method of claim 1, The soil file is Pillars formed with a plurality of grooves vertically spaced so that the first internal fixing body is embedded; And It includes an H beam pile installed in a position facing the pillar, Grout is filled in the groove of the pillar to fix the first internal fixture, The H beam file The outer wall for the transverse mudstone, which is installed at a position corresponding to the groove of the pillar and includes a pair of housings for supporting the second inner fixture, and a bearing plate for fixing the second inner fixture to the pair of housings, respectively. Support device. The method of claim 1, The retaining file is made of H beam file, One side of the H-beam pile is installed vertically spaced apart, and includes a first housing for mounting the first internal fixture therein and a first bearing plate for fixing the first internal fixture to the first housing. , The other H beam pile is installed at a position corresponding to the first housing, and includes a pair of housings for supporting the second internal fixture, and a bearing plate for fixing the second internal fixture in the pair of housings, respectively. The supporting device of the outer wall for transverse mudstone. The method of claim 3, wherein A support cylinder installed on one side of the first inner support to pass through the host material, and to increase the principal surface friction with the grout placed in the groove of the pillar; Wedge retraction prevention cap coupled to the end of the support cylinder; And A guide pipe extending from the support cylinder to penetrate the wedge retraction prevention cap and being exposed to the outside of the pillar and for inducing the insertion of the host material toward the first inner fixing body; Supporting device of the outer wall for transverse soil barrier further comprising a. 6. The method of claim 5, The outer circumferential surface of the first inner support and the support cylinder is processed in the form of irregularities so as to increase the principal surface friction with the grout. 7. The method according to any one of claims 1 to 6, The first and second internal fixing body A main body having a receiving groove; A wedge assembly inserted into the receiving groove of the main body and holding the host material and the auxiliary tension material, respectively; A screw cap fastened to the main body; A reaction force transfer membrane for preventing the wedge assembly from retreating by the reaction force of the tension member generated when the tension force introduced into the master and auxiliary tension members is removed; And A device for supporting an outer wall for a transverse diaphragm provided on an outer circumferential surface of the wedge assembly and including a wedge retracting ring for collecting the wedge assembly from being divided. 7. The method according to any one of claims 1 to 6, The anchor block A main body having a receiving groove; A wedge assembly inserted into the receiving groove of the main body and holding the host material and the auxiliary tension material, respectively; A screw cap fastened to the main body; A reaction force transfer membrane for preventing the wedge assembly from retreating by the reaction force of the tension member generated when the tension force introduced into the master and auxiliary tension members is removed; A wedge retracting ring installed on an outer circumferential surface of the wedge assembly to collect the wedge assembly from being divided; And It is installed at the rear end of the wedge assembly, and includes a wedge retraction prevention means for preventing the wedge assembly holding the host material from coming off the main body when the wire tensioner pulls the host material for introducing the tensile force Supporting device of outer wall for transverse mudguard. 9. The method of claim 8, The wedge retreat prevention means is a support device for an outer wall for transverse mudwall, characterized in that consisting of a cap with a spring built-in.

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