JP3975438B2 - Inclined repair method for dirt concrete building - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a slope repair method for an earthen concrete building that can reduce the cost and time of earth work while ensuring seismic safety of the building at the time of repair.
[0002]
[Prior art]
If unevenness occurs due to incline in the ground due to uneven subsidence, etc., a space is formed by installing a hydraulic jack between the building and its foundation to repair the inclination and height of the building. However, humans who entered this space repaired the unevenness by leveling the upper surface of the foundation flat, but this repair method requires a jig to install the hydraulic jack and is a large-scale work. However, since problems that lacked credibility in the repair effect were pointed out, the following methods for improving these problems were also proposed.
[0003]
[Patent Literature]
Japanese Examined Patent Publication No. 4-5105 (page 2, column 3, line 40 to column 4, line 17, FIG. 1)
[0004]
In particular, in buildings with ground floor concrete on the first floor, it is common to reinforce or refill clay soil concrete, but noise, industrial waste generation, and earthquake resistance to the building are also observed. Problems such as establishment of safety occurred, and correction of slight inclinations was regarded as a problem that could not be ignored in terms of construction period and cost in earthwork.
[0005]
In other words, the conventional slope repair of the soil concrete building is to maintain the existing soil concrete while replacing it with any method such as underpinning, jacking up, etc. In various construction methods as shown in Fig. 1, jacks were installed on the foundation of the building, and at the same time, the existing underground concrete was excavated completely.
[0006]
In the example shown in FIG. 4A, the jack 2 is installed on the foundation 1 of the building so that the foundation 1 can be jacked up so as to correct the inclination of the building, and at the same time, the concrete 4 with the steel beam 10 or the like. This is a slope correction method that reinforces from below the floor 3 after excavating the wall.
[0007]
Therefore, under the existing soil concrete 4, a large amount of soil was excavated and removed, and after the inclination of the building was corrected, the soil was backfilled to the ground although not shown in the figure. .
[0008]
Moreover, the example of FIG.4 (b) is the inclination of which inclination correction is performed by jacking up the foundation 2 so that the inclination of a building may be corrected after replacing existing soil concrete with the structural slab 11. Although it is a correction method, as in the above example, excavation and removal of the soil under the existing soil concrete before the inclination correction and backfilling of the soil (not shown) after the inclination correction were performed.
[0009]
Furthermore, the example of FIG.4 (c) is what demolishes existing soil concrete once, and after performing inclination correction | amendment by jacking up the foundation 1, soil backfill 12 and soil This is an inclination correction method for newly installing concrete 13.
[0010]
Therefore, in this construction method, it was essential to demolish existing soil concrete and excavate and remove a large amount of soil, and after the inclination of the building was corrected, it was necessary to backfill the soil and construct new soil concrete.
[0011]
As described above, the conventional slope repair method increases the cost and lengthening the construction period of soil-concrete earthwork, generates noise during demolition work between the soil, generation of industrial waste, and seismic safety of the building during the construction period. Establishing measures have occurred, and improvements were required.
[0012]
[Problems to be solved by the invention]
The present invention is proposed in order to improve the above in view of the above-mentioned actual situation. By excavating under the existing soil concrete or not refilling the existing soil concrete, it is a conventional problem. The purpose of this project is to provide a slope repair method for dirt concrete buildings that can reduce the cost of earthwork, reduce the work period, ensure seismic safety of the building during the work period, and prevent noise from soil demolition work and industrial waste. .
[0013]
[Means for Solving the Problems]
According to the present invention, the slope repair method for the soil-concrete building is the soil-concrete of the excavation part where the jack is installed in the slope repair method for the soil-concrete building corresponding to the unevenness by jacking up the foundation of the slope-concrete concrete building. Is removed, and the other interstitial concrete is cut off from the foundation beam, and then the foundation is jacked up by the amount of unevenness, and the raised concrete is placed on the existing interstitial concrete.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
According to the present invention, the slope repair method for dirt concrete buildings removes only the dirt concrete in the excavation part where the jack is installed, and puts other dirt concrete between the foundation beams, and then the foundation is not landed. Jacking up as much as possible and placing floor-to-floor concrete on top of existing soil-concrete, reducing earthwork costs and construction time, while ensuring earthquake-resistant safety of the building during the construction period , Suppresses noise and industrial waste generated during soil dismantling work.
[0015]
In the following, an embodiment relating to a slope repair method for a concrete concrete building according to the present invention will be described in detail with reference to the drawings. ing.
[0016]
FIG. 1 shows a pretreatment process in the present embodiment, and is a sectional view of a foundation beam as viewed from arrows (a) and (b)-(b) of the sectional view (a) of a concrete concrete building. The figure (b) is displayed.
[0017]
In the present embodiment, as shown in the elevation sectional view (a), the excavation groove 5 in the minimum area necessary for the construction is excavated under the floor 3 of the existing interstitial concrete 4. Has arranged the jack 2 in support of the foundation 1 in an inclined state.
[0018]
In this case, the existing soil concrete 4 has been excavated and removed in a range corresponding to the excavation groove 5 in the minimum area necessary for the construction, and in other areas, as shown in the sectional view (b), Only the edge cutting 7 is performed between the beam 6 and excavation and removal are avoided.
[0019]
Moreover, FIG. 2 has shown the process of the inclination correction in this Embodiment, and the foundation beam which looked at (b)-(b) arrow of (b)-(b) of an elevational sectional view (a) and an elevational sectional view (a) of a soil concrete building And a cross-sectional view (b) of soil concrete.
[0020]
In this step, the foundation beam 6 is placed in a horizontal state as shown in the elevational sectional view (a) by jacking up the foundation 1 in an inclined state by the jack 2 disposed on the bottom surface of the excavation groove 5 first. Although the foundation beam 6 is edged with the existing soil concrete 4 while leaving most of the existing soil concrete 4 as it is as seen in the cross-sectional view (b), The inclination state can be corrected to easily level the normal position.
[0021]
In the next step, the excavation groove 5 is back-filled 8 to a position corresponding to the underfloor 3 of the existing interstitial concrete 4 that has been removed, and the pretreatment for constructing a new interstitial concrete has been completed. .
[0022]
Furthermore, FIG. 3 has shown the process of the final construction in this Embodiment, and the basic beam which looked at (b)-(b) of (b)-(b) of the elevational sectional view (a) and the elevational sectional view (a) of the soil concrete building The cross-sectional view (b) of the floor-raised soil concrete including is displayed.
[0023]
In the final step, the floor-raised soil concrete 9 is finally constructed as regular soil-free concrete in which unevenness has been eliminated, and as shown in the elevational sectional view (a), it is backfilled 8 in the excavation groove 5. The final soil concrete is completed by adding concrete to the same surface as the foundation beam 6 on the soil surface and the existing soil concrete 4.
[0024]
Accordingly, the floor-raised soil concrete 9 is in a state in which the slope is corrected and the unevenness is eliminated, and as seen in the cross-sectional view (b), it is placed as a new soil concrete up to the same plane as the foundation beam 6. .
[0025]
As described above, according to the slope repair method for a dirt concrete building according to the present invention, as explained in the embodiment, the dirt concrete in the excavation part where the jack is installed is removed, and the other dirt concrete is cut off from the foundation beam. After that, it is characterized by jacking up the foundation by the amount of unevenness and placing floor concrete on top of the existing concrete, thus reducing the cost of construction work, reducing the construction period, and seismic safety of the building during the construction period Generation of noise and industrial waste are prevented.
[0026]
As mentioned above, although the slope repair method of the concrete concrete building by this invention was demonstrated in detail based on the said embodiment, this invention is not limited to these embodiment at all, and deviates from the main point of invention. It goes without saying that various changes can be made without departing from the scope.
[0027]
【The invention's effect】
According to the present invention, the slope repair method for the soil-concrete building is the soil-concrete of the excavation part where the jack is installed in the slope repair method for the soil-concrete building corresponding to the unevenness by jacking up the foundation of the slope-concrete concrete building. Is removed, and other interstitial concrete is cut off from the foundation beam, and then the foundation is jacked up by the unevenness and the floor is raised on the existing interstitial concrete. It is effective.
[0028]
(1) Since excavation under the floor is minimized, the construction period and cost of earthwork can be reduced.
(2) Since the foundation is still in the soil during construction, seismic safety of the building is ensured.
(3) It is possible to eliminate the demolition of existing soil concrete and suppress the generation of noise and industrial waste during the soil demolition work.
[Brief description of the drawings]
[Fig. 1] Pre-treatment process diagram of slope repair method for dirt concrete building according to the present invention [Fig. 2] Slope repair process diagram of slope repair method of dirt concrete building according to the present invention [Fig. 3] Slope of dirt concrete building according to the present invention Final process diagram of repair method [Fig.4] Inclined repair diagram of conventional soil concrete building [Explanation of symbols]
1 foundation, 2 jacks, 3 under existing concrete floor,
4 Existing soil concrete, 5 Excavation groove, 6 Foundation beam, 7 Edge cutting,
8 Backfill, 9 Concrete on floor, 10 Steel beam,
11 structural slabs, 12 backfilling, 13 earthen concrete,

Claims (1)

It is a slope repair method for dirt concrete buildings corresponding to unevenness by jacking up the foundation of the dirt concrete building that caused the slope, and the soil concrete in the excavation part where the jack is installed is removed, and the other soil concrete is Inclined repair method for soil concrete building, where the foundation beam is cut off and then the foundation is jacked up to the level and the concrete is raised on the existing soil concrete.

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