JP2007100454A - Building sinking correction method and coupling device for building sinking correction - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely connect piles to a building in a building sinking correction method of correcting the inclination of the building such as an unevenly sunk house. <P>SOLUTION: A connection device 5 is interposed between a ground support layer and a foundation 4 with the foundation 4 raised by a pushup means 9 installed on the piles supported on the support layer of the ground. The connection device 5 comprises a lower member 7 having an installation part 10 for the pushup means 9 formed on the upper surface and having guide parts 11 vertically installed around the push up means 9 at least at three positions, an upper member 8 installed between the lower member 7 and the foundation 4 to form a through-part 17 for the pushup means 9, and having a slidable guide part support part 12 formed on the guide part 11, and a fixing means 13 formed of a nut interposed between the guide part 11 and the guide part support part 12 and fixing them to each other. The lower member 7 and the upper member 8 are supported by the guide part 11 and the guide part support part 12 installed around the pushup means 9 at least at three positions. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a building settlement correction method and a building settlement correction coupling device.

Conventionally, buildings such as houses that have been sunk unevenly have been used to restore and restore tilted houses and buildings to their original positions by means of ascending, lateral movement, raising, etc. due to earthquakes or soft ground subsidence. For the purpose of correcting the inclination, the necessary number of jack units are installed under the foundation of the building to be corrected and can be controlled by the automatic jacking control operation management device, and the correction work that relies on the skill level of the technician. 2. Description of the Related Art There is known a building straightening jack automatic operation control system that enables a rational and safe construction method in which work is mechanized and automated (for example, Patent Document 1).
JP 2004-19429 A

  In the prior art, after the correction target building is supported by the jack unit, the jack stand is left and the correction target building is supported by the stand. However, there is a concern that the conventional jack stand is inferior in stability. It was done.

  The problem to be solved is to reliably connect the pile and the building in the building settlement correction method for correcting the inclination of the building such as a house that has been sunk unevenly.

  The invention of claim 1 is a building subsidence correction method that corrects the inclination of a building such as a house that has been sunk unevenly by controlling a push-up means installed under the foundation of the building, and is supported by the support layer of the ground In the building settlement correction method in which a connecting member is interposed between the pile member and the foundation in a state where the foundation is lifted by the push-up means installed on the pile member, and then the push-up means is removed. The connecting member is provided at an upper portion of the pile member, and is provided with an installation portion for the push-up means on the upper surface, and a lower member in which guide portions are erected at least at three locations around the push-up means, the lower member and the foundation An upper member provided between the guide member and a guide portion receiving portion that is slidable on the guide portion, and is interposed between the guide portion and the guide portion receiving portion. And a fixing means for fixing both a building subsidence modification method, characterized in that push the basic side through the push means to said penetrating portion.

  The invention according to claim 2 is the building settlement correction method according to claim 1, wherein the push-up means is a jack.

  The invention according to claim 3 is the female screw body capable of supporting the guide portion receiving portion while the fixing means is screwed to the guide portion so as to be movable in the vertical direction. It is a construction settlement correction method.

  The invention according to claim 4 corrects the inclination of a building such as a house that has been sunk unevenly by controlling the pushing means installed under the foundation of the building, and is interposed between the pile member supporting the correction and the foundation. In the building subsidence correction connecting device, a lower member provided on the top of the pile member and provided with an installation portion of the push-up means on the upper surface, and at least three places around the push-up means, An upper member provided between the lower member and the foundation and forming a penetrating portion of the push-up means and having a slidable guide portion receiving portion on the guide portion; and the guide portion and the guide portion receiving portion And a fixing device for fixing both of them.

  The invention according to claim 5 is the female screw body, wherein the fixing means is screwed to the guide portion so as to be movable in the vertical direction and can support the guide portion receiving portion. It is a connecting device for building settlement correction.

  According to the first aspect of the present invention, the lower member and the upper member are supported by at least three guide portions around the push-up means and the guide portion receiving portion, so that the stability of the support can be improved, and further the penetration The foundation can be pushed up directly by the pushing-up means through the part.

  According to invention of Claim 2, pushing-up force can be performed strongly by using a jack.

  According to the invention of claim 3, the height can be adjusted accurately by screwing, and the supporting strength can be secured.

  According to the invention of claim 4, in the connecting device, the lower member and the upper member are supported by at least three guide portions around the push-up means and the guide portion receiving portion, and are excellent in stability. The object can be well supported, and the foundation can be directly pushed up by the pushing-up means through the penetration portion.

  According to the invention of claim 5, the height can be adjusted accurately by screwing, and the supporting strength can be ensured.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all the configurations described below are not necessarily essential requirements of the present invention.

  FIG. 1 shows an embodiment, and FIG. 1 shows a cross-sectional state before correcting the inclination of a building to be corrected (hereinafter referred to as “building 1”) such as a house, while FIG. 14 shows the inclination of the building 1. It is in a cross-sectional state after correction, and is applied from the concrete to the upper part of the foundation pile 3 which is a pile member driven at the lower end into the ground support layer 2 through a settlement correction device (hereinafter referred to as a correction device) of the building 1. A reinforced concrete foundation 4 as a foundation of the building 1 is supported, and a foundation pile 3 is buried in the earth and sand between the ground and the ground support layer 2. And between the foundation pile 3 and the foundation 4, the 1st connection apparatus 5 and the 2nd connection apparatus 6 as a connection apparatus for building subsidence correction which is a connection member (henceforth a connection apparatus) are provided. Yes.

  As shown in the plan explanatory view of FIG. 2, a first connecting device 5 called a jack stand or the like is arranged at a corner or an intersection in the foundation 4 of FIG. Is arranged with a second connecting device 6 narrower than the first connecting device 5.

  As shown in FIG. 3, the first connecting device 5 includes a horizontal flat plate-like lower member 7 placed on the upper surface of the pile 3 and a flat plate that horizontally contacts and supports the lower surface of the concrete foundation 4. The lower member 7 is formed to have a larger area than the upper surface of the pile in which the upper surface of the pile 3 is in full contact with the lower surface. The upper member 8 has a shape having substantially the same area as the lower member 7. In the figure, reference numeral 7A denotes an upper end of a pile 3 formed at the center of the lower surface of the lower member 7, and in the case of FIG. .

  On the upper surface of the upper part of the upper member 8, there is provided an installation portion 10 for a push-up means 9 which is a manual jack as a lift drive means. The installation portion 10 is formed so that the push-up means 9 can be installed. In the embodiment, the push-up means 9 can be installed by the horizontal upper surface. And the guide part 11 is standingly arranged in at least 3 places around the installed pushing-up means 9, and four places in an Example. The guide portion 11 is composed of a male screw shaft that is erected and arranged in four directions from the center of the upper surface, and a female portion that is a nut for fixing a guide portion receiving portion 12 (to be described later) to the guide portion 11 composed of the male screw shaft. A fixing means 13 made of a screw body is screwed and provided so as to be movable up and down.

  The upper member 8 is provided with a guide portion receiving portion 12 that is slidable in the vertical direction on the guide portion 11 so as to face the guide portion 11 on the lower surface. This guide portion receiving portion 12 is provided in four directions from the center of the lower surface, and has a cylindrical shape having a diameter larger than that of the guide portion 11 and opened downward. The guide portion receiving portion 12 is provided so that the guide portion 11 can be inserted into the guide portion receiving portion 12 through the lower opening portion 14, and a lower opening edge 14 </ b> A that forms a locking receiving portion that is an edge of the lower opening portion 14. The fixing means 13 is engaged with the upper surface. Further, at the center of the upper member 8, an upper portion of the push-up means 9, that is, a penetrating portion 17 through which an elevating operating portion 16 called a ram or a rod can pass is formed in a hole shape. The operating portion 16 penetrates through the penetrating portion 17 so that the upper end of the operating portion 16 can directly or indirectly support the foundation 4 side without contacting the upper member 8. Further, reinforcing members 8 </ b> A are arranged around the upper member 8. The reinforcing member 8A is disposed along the edge of the upper member 8 so that the plane is rectangular. The guide portion receiving portion 12 is disposed at the corner, and the upper outer periphery 12A of the guide portion receiving portion 12 is disposed. The guide portion receiving portion 12 itself is also reinforced with the outside of the guide portion contacting the reinforcing member 8A.

  As shown in FIG. 4, the second connecting device 6, like the first connecting device 5, is a horizontal flat plate-like lower plate member 18 placed on the upper surface of another foundation pile 3, and A flat plate-like upper plate member 19 is provided that is horizontally abutted and supported on the lower surface of the concrete foundation 4, and guide portions 11 are provided on the front and rear sides or the left and right sides of the lower plate member 18. Fixing means 13 made of a female screw body, which is a nut for fixing the receiving portion 12, is provided so as to be able to move up and down. On the other hand, the upper plate member 19 is provided with a guide portion receiving portion 12 slidable in the vertical direction on the guide portion 11 so as to face the guide portion 11 of the lower plate member 18 on the lower surface. The push-up means 15 is positioned in the middle of the pair of left and right guide portions 11 and placed on the lower plate member 18, and the operating portion 15 A of the push-up means 15 comes into contact with the lower surface of the upper plate member 19. .

  Next, the construction method will be described based on the first step in FIG. 5 to the ninth step in FIG. This construction is performed at the same time at a plurality of corners and intersections in the foundation 4 as shown in FIG.

  As shown in the first step of FIG. 5, the building 1 is excavated around the foundation 4 on the lower side with the inclination. And as shown to the 2nd process of FIG. 6, excavation is performed to the downward direction of the foundation 4, and excavation is completed. Next, as shown in the third step of FIG. 7, a pile 3 made of a steel pipe is erected on the bottom surface of the excavation hole 20, and a push-up means 9 </ b> A as an elevating drive means is interposed between the pile 3 and the foundation 4. When the push-up means 9A used here is a power hydraulic jack, a motor or engine driven power hydraulic pump 9P is connected.

  As shown in the fourth step of FIG. 8, when the push-up means 9A is actuated to raise the operating portion 16, the building 1 is not pushed up and the pile 3 is pushed downward because the ground is soft. At this time, as shown in FIG. 3, the pile 3 is connected to a circular short tube 22 forming a further pile via a cylindrical joint 21 so as to reach a predetermined depth. Then, when the pile 3 reaches the support layer 2, the downward pushing of the pile 3 stops. That is, the pile 3 is pushed into the foundation pile 3 including the short pipe 22 by using the weight of the building 1 to the support layer 2 of the ground.

  In this way, the piles 3 are arranged at the locations of the first connecting device 5 and the second connecting device 6 shown in FIG.

  Next, as shown in the fifth step of FIG. 9, the lifting means 9A connected to the power hydraulic pump 9P on the pile 3 is removed. And the 1st connection apparatus 5 is installed with the raising means 9 on the upper surface of each pile 3 arrange | positioned at the corner | angular of the foundation 4, etc. Further, the second connecting device 6 is installed together with the push-up means 15 on the upper surface of each pile 3 other than the corners of the foundation 4. The first connecting device 5 is installed by placing the lower member 7 on the upper surface of the pile 3 and pushing it up at the center thereof, that is, inside the guide portion 11 in the four directions, at the center of the lower member 7. Is installed. Further, the upper member 8 is attached so that the guide portion 11 is inserted into the guide portion receiving portion 12. At this time, the push-up means 9 is mounted upward so that the operating portion 16 faces the penetrating portion 17. And the block which consists of concrete which is the material similar to the foundation 4 or the concrete 26 mentioned later is interposed in the upper member 8 as the contact material 23 with the foundation 4. The abutting member 23 is provided as necessary, and the flat surface is formed to be approximately the same size as the upper member 8, and the guide portion 11 is inserted into the guide portion receiving portion 12 in advance and fixed. By screwing the means 13 slightly above the guide portion 11 and locking the lower opening edge 14A to the fixing means 13, a gap slightly larger than the thickness of the pad 23 is provided between the upper member 8 and the foundation 4. After that, the abutting member 23 is sandwiched between the upper member 8 and the foundation 4, and then the push-up means 9 is operated manually to bring the operating portion 16 into contact with the lower surface of the abutting member 23 through the penetrating portion 17.

  Similarly, the 2nd coupling device 6 is installed. This attachment is different from the first connecting device 5, and the actuating portion 15 A of the push-up means 15 is in contact with the lower surface of the upper plate member 19 with a backing material 23 A interposed therebetween. The foundation 4 is pushed up, or a foundation member is interposed between the upper plate member 19 and the foundation 4 to push up the foundation 4.

  It should be noted that if the installation work of the first connecting device 5 and the second connecting device 6 is performed at all locations at once, the building 1 may further sink. The work is divided so that the building 1 does not sink.

  Further, when all or a part of the pushing means 9 and 15 are operated to raise the operating portion 16, the pushing means 9 and 15 on the pile 3 supported by the support layer 2 gravitate the foundation 4 and eventually the building 1. Lift until level. Thereby, the foundation 4 returns to the horizontal level and the building 1 is almost corrected. At this time, in the push-up means 9, the operating portion 16 pushes up the abutting member 23 and eventually the foundation 4 through the penetration portion 17. Further, in the push-up means 15, the operating portion 15A pushes up the upper plate member 19, and consequently the base 4.

  In order to maintain this pushed-up state, in the first connecting device 5, the fixing means 13 is screwed upward along the guide portion 11 so that the upper member 8 abuts against the abutting member 23, and the lower opening portion The fixing means 13 is locked to 14. As a result, the lower member 7 supported by the pile 3, the guide portion 11 erected on this, the fixing means 13 screwed into the guide portion 11, and the lower opening 14 is locked to the fixing means 13 and is in a fixed state. The guide portion receiving portion 12 and the upper member 8 integrated with the guide portion receiving portion 12 can support the base 4.

  Similarly to the first connecting device 5, also in the second connecting device 6, the fixing means 13 is screwed to the guide member 11 so as to press the upper plate member 19 toward the base 4 side.

  As shown in the sixth step of FIG. 10, in the state where the foundation 4 is supported by the pile 3 and the first connecting device 5 and the pile 3 and the second connecting device 6, the operating parts 16, 15A are reduced and pushed up. 9 and 15 are removed from the first connecting device 5 and the second connecting device 6. Then, the bottom of the excavation hole 20 is backfilled and rolled. Further, as shown in the seventh step of FIG. 11, the earth retaining frame 24 is installed outside the pile 3, the first connecting device 5 and the block 23, and the earth 25 is buried back to the ground surface outside the earth retaining frame 24. . Further, as shown in the eighth step of FIG. 12, concrete 26 is injected from the concrete mixer truck 26 </ b> A into the retaining frame 24 to integrate the pile 3, the first connecting device 5 and the block 23 with the concrete 26. As shown in the ninth step of FIG. 13, after concrete 26 is solidified, it is further backfilled with earth and sand 25.

  As described above, in the above embodiment, the tilting of the building 1 such as a house that has been submerged unevenly is controlled by controlling the push-up means 9 installed under the foundation 4 of the building 1, and the support layer of the ground A support member is interposed between the ground support layer 2 and the foundation 4 in a state in which the foundation 4 is lifted by the pushing-up means 9 installed on the pile 3 supported by 2, and then the pushing-up means 9 is removed. In the building subsidence correction method, the connecting member is provided at the upper part of the pile 3 and is provided with the installation part 10 of the pushing-up means 9 on the upper surface and the guide part 11 is erected at at least three places around the pushing-up means 9 A member 7, an upper member 8 provided between the lower member 7 and the base 4, which forms a penetrating portion 17 of the push-up means 9 and a guide portion receiving portion 12 slidable on the guide portion 11; The guide part 11 and the guide part The lower member 7 and the upper member 8 are pushed up by pushing up the base 4 side through the push-up means 9 through the push-up means 9. Supported by at least three guide portions 11 and guide portion receiving portions 12 around the means 9, and the pushing-up means 9 directly presses the base 4 side through the through portion 17 without interposing the upper member 8. Therefore, the stability of the building 1 can be favorably supported.

  Further, the push-up means 9 is made of a jack, so that the push-up force can be performed strongly.

  Furthermore, the fixing means 13 is screwed into the guide portion 11 so as to be movable in the vertical direction, and is a female screw body capable of supporting the guide portion receiving portion 12, so that the height adjustment can be accurately performed by screwing. In addition to being able to do this, the support strength can also be secured due to the screw.

  Also, a lower member 7 provided on the upper surface of the pile 3 and provided with an installation portion 10 for the push-up means 9 on the upper surface, and a guide portion 11 erected at least at three locations around the push-up means 9, and the lower member 7 And an upper member 8 provided between the base 4 and the base 4 to form a penetrating portion 17 of the push-up means 9 and a slidable guide portion receiving portion 12 to the guide portion 11; The first connecting device 5 including the fixing means 13 that is interposed between the guide portion receiving portion 12 and fixes both of them, the lower member 7 and the upper member 8 are at least three guides around the push-up means 9. Is supported by the guide portion 11 and the guide receiving portion 12, and the push-up means 9 directly presses the base 4 side without the upper member 8 through the penetrating portion 17, so that the stability is excellent and after correction. Good support for building 1 You can.

  In addition, the fixing means 13 is a female screw body that is screwed to the guide portion 11 so as to be movable in the vertical direction, and is capable of supporting the guide portion receiving portion 12, so that the height is accurately adjusted by screwing. In addition, the supporting strength can be ensured by the screw.

  In addition, since the reinforcing member 8A is disposed around the upper member 8, the strength resistance of the upper member 8 can be improved.

  As described above, the building settlement correction method and the building settlement correction coupling device according to the present invention can be applied to various applications. Moreover, the pile member should just intervene between a ground and a foundation and can support a building, and can use various materials, such as a metal and concrete.

It is a whole sectional view showing Example 1 of the present invention. It is a top view for description of connection apparatus installation which shows Example 1 of this invention. It is a disassembled perspective view of the 1st coupling apparatus installation which shows Example 1 of this invention. It is a disassembled perspective view of the 2nd connection apparatus installation which shows Example 1 of this invention. It is explanatory drawing of the 1st process which shows Example 1 of this invention. It is explanatory drawing of the 2nd process which shows Example 1 of this invention. It is explanatory drawing of the 3rd process which shows Example 1 of this invention. It is explanatory drawing of the 4th process which shows Example 1 of this invention. It is explanatory drawing of the 5th process which shows Example 1 of this invention. It is explanatory drawing of the 6th process which shows Example 1 of this invention. It is explanatory drawing of the 7th process which shows Example 1 of this invention. It is explanatory drawing of the 8th process which shows Example 1 of this invention. It is explanatory drawing of the 9th process which shows Example 1 of this invention. It is explanatory drawing of the 10th process which shows Example 1 of this invention.

Explanation of symbols

1 Building 2 Ground Support Layer 3 Pile (Pile Member)
4 Foundation 5 First connecting device (connecting member)
7 Lower member 8 Upper member 9 Lifting means
10 Installation section
11 Guide section
12 Guide section
13 Fixing means
17 penetration

Claims (5)

  This is a building settlement correction method that corrects the inclination of buildings such as houses that subsided unevenly by controlling the push-up means installed under the foundation of the building, and is installed on pile members supported by the support layer of the ground In the building settlement correction method in which a connecting member is interposed between the pile member and the foundation in a state where the foundation is lifted by the lifting means, and then the lifting means is removed. A lower member provided on the upper surface and provided with an installation portion for the push-up means on the upper surface, and a guide member provided on at least three places around the push-up means, and the push-up provided between the lower member and the foundation An upper member provided with a slidable guide portion receiving portion and a guide portion receiving portion that is slidable on the guide portion, and a fixed member that is interposed between the guide portion and the guide portion receiving portion and that fixes both. And means, building subsidence modification method, characterized in that push the basic side through the push means to said penetrating portion.   2. The building settlement correction method according to claim 1, wherein the push-up means comprises a jack.   2. The building subsidence correction method according to claim 1, wherein the fixing means is a female screw body capable of being screwed to the guide portion so as to be movable in the vertical direction and capable of supporting the guide portion receiving portion.   Control the push-up means installed under the foundation of the building to correct the inclination of the building, such as a house that subsided unequally, and fix the building settlement to intervene between the pile member that supports this modification and the foundation. In the apparatus, a lower member provided on an upper surface of the pile member and provided with an installation portion of the push-up means on the upper surface, and a guide portion erected at least at three locations around the push-up means, the lower member and the foundation An upper member provided between the guide member and a guide member receiving portion that is slidable on the guide portion, and is interposed between the guide portion and the guide portion receiving portion. And a fixing device for fixing the building.   The building subsidence correcting coupling device according to claim 4, wherein the fixing means is a female screw body that is screwed to the guide portion so as to be movable in the vertical direction and can support the guide portion receiving portion. .

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