JP3824931B2 - Installation work for air conditioning equipment in underground space - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In particular, the present invention relates to a method for installing air conditioning equipment in an underground space such as a subway.
[0002]
[Prior art]
In general, in the installation work of air conditioning equipment in an underground space of this kind such as a subway, a plurality of anchor bolts are erected at a predetermined depth with respect to a site to be installed such as the air conditioning equipment. After the foundation concrete with anchor bolt setting holes is placed and this work is finished, temporary packers placed on both sides of the anchor bolt on the foundation concrete are filled into the integrated formwork with concrete. The concrete base for anchor bolt fixing and the air conditioner mounted on the anchor bolt setting hole are mounted on the temporary packer, and the machine base such as the air conditioner to be installed on the temporary packer is mounted on the temporary base. The machine packer is placed between the machine base and the spacer, and a spacer is interposed between the machine packer and the machine base. Pingdu adjust to the had to perform the installation of air conditioning equipment.
[0003]
[Problems to be solved by the invention]
However, in the above-described conventional method, when placing the present packer, for example, a base base of a blower that constitutes the air conditioning equipment installed on the temporary packer is mounted on the upper surface of the basic concrete. It was extremely difficult to set up this packer that puts a formwork in the gap between the machine base and hardens the non-shrinkage cement. Therefore, the method of removing the formwork and placing the lock table on the non-shrinkable cement (pad type) and then solidifying the space only from the side was taken, but the strength was incomplete and the level of the upper surface of the lock table was raised. It was difficult and required a lot of labor, and it was a factor that greatly lengthened the construction period.
[0004]
Accordingly, the present invention has been made in view of the above-described problems, and the object of the present invention is to extremely easily adjust the installation level of an air conditioner or the like to improve the work efficiency and the installation accuracy. At the same time, it is intended to provide a method for installing air-conditioning equipment and the like in an underground space that can save the labor and time required for the work as much as possible and shorten the work period of the whole work as much as possible.
[0005]
[Means for Solving the Problems]
In order to solve this problem, the invention according to claim 1 is a plurality of anchor bolts having a predetermined depth in which an anchor bolt is erected substantially at the center of a portion to be installed such as an air conditioner equipment. A base for air conditioners or the like to be installed on the temporary packer via a lock base and a height adjusting member, by placing the basic concrete provided with a setting hole to form a temporary packer arranged on the basic concrete A base is mounted, and the height and level of the base of the machine base are adjusted, and the concrete upper surface and the concrete upper surface on the anchor bolt fixing concrete placed in the anchor bolt setting hole for anchor bolt fixing In the installation work of air conditioning equipment etc. in the underground space by placing this packer between the base of air conditioning equipment etc.
When adjusting the height and level of the base of the machine base, the surface height fine adjustment tool with a spiral rotation operation mechanism is arranged in a predetermined plurality of locations near the site where the present packer is placed, and the spiral rotation operation mechanism is provided. The gist is to adjust and set the level of the height and the level of the level with the surface height adjustment tool, and then form the packer.
[0006]
According to the above-described configuration, when adjusting the height and level of the machine base, the height of the surface with the spiral rotation operation mechanism disposed at a plurality of predetermined positions near the site where the packer is placed on the foundation concrete. By adjusting and setting the height and level of the base of the machine base with an adjusting device, and then forming the main packer, the installation level of the air conditioner etc. can be adjusted very easily, its work efficiency and installation In addition to improving accuracy and reducing the labor and time required for the work as much as possible, the work period of the whole work can be shortened as much as possible.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention in an installation method for air conditioning equipment in an underground space will be described with reference to FIGS.
In the present embodiment described below, a description will be given of the case of installing an air blower constituting the air conditioning equipment in the air conditioning equipment installed in the underground space.
[0008]
First, in the installed state of the blower 1, as shown in FIG.1 and FIG.2, in the underground space S, the concrete foundation 2 in which concrete was cast in a predetermined shape corresponding to the form of the blower 1 to be installed. On the other hand, the bottomed metal frames 4 to 4 constituting the metal forming apparatus for housing the anchor bolt 3 in the portion to be installed in the blower 1 are concretely cast integrally with the foundation concrete 2, and the foundation concrete portion The base unit 6 of the blower 1 is placed on the upper surface 2 with the temporary packers 5 to 5, and the upper surface of the concrete 9 for fixing the anchor bolts 3 placed in the metal molds 4 to 4 is fixed. This packer 7 is formed between the lower surface of the machine base 6 and the machine base 6 is fixed by fastening means such as nuts via the anchor bolts 3 so as to constitute air conditioning equipment and the like. 1 is intended to be mounted on the foundation concrete 2 in the underground space.
[0009]
Hereinafter, the installation method will be specifically described.
First, the foundation concrete 2 is constructed by placing anchor reinforcement bolts for the blower foundation set on the floor slab corresponding to the part to be installed on the blower 1, and arranging the reinforcing bar 8 by placing the foundation rebar. Form. A metal bottomed formwork (also referred to as an anchor sleeve) 4 to be described later is incorporated in the reinforcing bar frame 8 and connected and fixed to a circumferential reinforcing bar. After this, the formwork (wooden) of the entire blower foundation is formed, and the foundation concrete 2 is placed. (Referred to as the basic formation process). That is, after arranging the bottomed metal frame 4 for the concrete 9 for anchor bolt fixing, which will be described later, together with the reinforcing bar frame 8 framed in a rectangular shape or the like for the foundation concrete 2, A formwork (not shown) is constructed and the foundation concrete 2 is placed.
[0010]
In addition, an inner diameter portion of the metal bottomed mold 4 is an anchor bolt setting hole, and an anchor bolt 3 whose lower end is bent in a U-shape is set up substantially at the center of the anchor bolt setting hole. It is to be established.
[0011]
In this case, as shown in FIG. 5, the metal bottomed mold 4 is formed in a metal bottomed cylindrical shape such as a galvanized iron plate, for example, so that the reinforcing bar frame 8 for the foundation concrete 2 is formed. Can be inserted into the metal bottomed mold 4 as it is, and the metal bottomed mold 4 can be arranged as a circumferential reinforcing bar in the reinforcing bar frame assembly 8, and the anchor bolt 3 can be The reinforcing bars in the reinforcing bar frame 8 inserted through the bottom mold 4 can be hooked up via hooks (not shown) to improve the workability of each bundling operation. . Furthermore, the adhesiveness between the metal bottomed formwork 4 and the foundation concrete 2 is improved to improve the accuracy of placing the foundation concrete portion 2.
[0012]
Next, after dismantling the formwork in the foundation concrete 2, smearing is performed on the foundation concrete 2, and a plurality of predetermined locations corresponding to the blower 1 on which the temporary packers 5 to 5 are to be installed (see FIG. 3 shows three places.) It is formed and placed. (This is called a temporary packer forming step.)
[0013]
That is, as shown in FIG. 6, each temporary packer 5 assembles a square-shaped mold frame 10 (also referred to as a temporary frame) having a predetermined height divided into two in the horizontal direction. A non-shrinkable mortar (pad type) is thrown in several times (preferably about 5 times) according to the target amount, and is placed and formed by squeezing it while applying vibration by means of a vibrator. In this case, the non-shrinkable mortar (pad type) is quickly solidified to the upper part of the mold 10 by adding the non-shrinkable mortar (pad type) several times (preferably about 5 times) according to the amount of the division. It is something that can be done.
[0014]
Then, a lock base (parallel liner) 11 is embedded on the temporary packer 5 made of the non-shrinkable mortar (pad type) while applying vibration to the temporary packer 5 to about 1/3 while applying vibration by means of a vibrator (see FIG. 6). In this case, the adjustment is performed while adjusting the parallelism of the upper surface of the lock table (parallel liner) 11, and the high portion is finely adjusted with a rubber hammer or the like.
[0015]
Next, a pair of height adjusting members 12 (taper liners) having sliding taper surfaces facing each other are placed on the lock table (parallel liner) 11 on the temporary packer 5, and this height adjusting member is placed. 12 (the taper liner) is mounted on the machine base 6 of the blower 1 that is an air conditioner to be installed, and the height and level of the machine base 6 are separately provided. It adjusts and sets by operation of the surface height fine adjustment tool 13 with a mechanism (it is called a machine base installation temporary core adjustment process).
[0016]
Then, as shown in FIG. 9, the surface height fine adjustment device 13 with the spiral rotation operation mechanism includes a pair of fixed sides having sliding taper surfaces 14 and 15 that are in sliding contact with each other such as a leveling block. And the movable adjustment bases 16 and 17, and the screw means 18 in which the movable adjustment base 17 is connected to the fixed adjustment base 16 so that the upper surface thereof moves up and down in a parallel state. The screw means 18 is screwed up and screwed down so that the movable adjustment base 17 is moved up and down using the sliding taper surface to adjust the height. The play in the threaded assembly state in the screw connection (screw means 18) of the adjustment bases 16 and 17 on the fixed side and the movable side is set to an accuracy of 1/1000 to 5/1000. is there.
[0017]
In the machine base installation temporary core adjustment process, in the adjustment setting of the height and horizontality of the machine base 6, a predetermined portion (described later) between the upper surface of the foundation concrete 2 and the machine base 6 of the blower 1. The surface height fine adjustment device 13 with the helical rotation operation mechanism is installed at a plurality of locations (in the vicinity of the formation site of the present packer 7), and the base height is adjusted by the surface height fine adjustment device 13 with the helical rotation operation mechanism. The level of 6 and the predetermined height level are finely adjusted and set.
[0018]
By the individual operation of the surface height fine adjustment tool 13 with each spiral rotation operation mechanism, the adjustment work of the level and height level of the machine base 6 can be easily and quickly performed.
[0019]
In this state, the height adjustment member 12 (taper liner) on the temporary packer 5 is adjusted according to the height level set by the surface height fine adjustment device 13 with the spiral rotation operation mechanism, and the height adjustment member The upper surface of 12 (taper liner) is brought into contact with the lower surface of the machine base 6.
[0020]
In addition, after the machine base 6 is adjusted and set to a level and a predetermined height as described above, the surface height fine adjustment device 13 with the spiral rotation operation mechanism is removed and a temporary core inspection is performed. After passing the inspection, the concrete 9 for fixing the anchor bolt is filled in the metal bottomed mold 4, that is, in the anchor bolt setting hole, and the anchor 9 is anchored by the filled and cast concrete 9. The bolt 3 is fixed in a vertical state.
[0021]
Then, the packer 7 is placed between the top surface of the concrete 9 and the machine base 6 of the blower 1 at a position where the anchor bolt 3 is sandwiched on the concrete 9 for fixing the anchor bolt. It is formed by pouring into a divided mold form and placing the lock table 11a on the non-shrinkable cement in the same manner as the temporary packer 5 described above (referred to as the present packer placing step).
[0022]
The lock table level of the packer 7 is adjusted by a pair of height adjustment members 12a (between the lower surface of the machine base 6 already placed on the temporary packer 5 and the temporary centering completed and the lock table 11a. A taper liner) is inserted and the height adjusting member 12a (taper liner) is slid to push the lock 11a into the main packer 7.
[0023]
That is, a height adjusting member 12a (taper liner) having an opposing sliding taper surface configured in the same manner as the height adjusting member 12 used for the temporary packer 5 on the lock table (parallel liner) 11a. , And slide the height adjusting member 12a (taper liner) to push the lock table 11a into the packer 7, while the upper surface of the height adjusting member 12a (taper liner) is 6 (see FIGS. 6 and 7).
[0024]
In this case, until the present packer 7 is cured, the upper surface level of the lock table (parallel liner) 11a is parallel to the lower surface of the machine base 6 of the blower 1 to be installed, and the height adjustment member 12a is “back”. It is inspected so as not to occur. At this time, the perpendicularity of the anchor bolt 3 is also set to be perpendicular.
[0025]
Next, after the main packer 7 is hardened, the centering adjustment is performed by the height adjusting member 12 on the lock base of the main packer 7 and the nut is screwed into the anchor bolt 3. That is, this centering adjustment is performed as a precision adjustment operation in which the height adjusting member 12 is slid while tightening a nut or the like screwed to the anchor bolt with a torque wrench as described above.
[0026]
And after these adjustment work is complete | finished and the final inspection is passed, while disassembling and extracting the metal division | segmentation formwork of this packer 7, the lock base 11 in each said temporary packer 5, and the height adjustment member 12 and All are fixed by welding.
[0027]
After that, cinder concrete 19 is placed to the upper surface of the machine base 6 installed on the foundation concrete 2 and troweled, and the blower 1 constituting the air conditioning equipment is installed on the foundation concrete 2 in the underground space. It is what you attach.
[0028]
In the above-described embodiment, the installation positions and the number of temporary packers 5 and main packers 7 for installing the machine base 6 are not limited to those shown in the drawings, and a spiral rotation operation mechanism is provided. Even if it exists in the surface height fine adjustment tool 13, it does not limit to the thing of illustration.
[0029]
【The invention's effect】
According to the first aspect of the present invention, when adjusting the height and level of the machine base, the surface height of the base concrete provided with the spiral rotation operation mechanism at a plurality of predetermined positions near the site where the packer is placed is determined. Adjusting the installation level of the air conditioner etc. by adjusting and setting the height and level of level of the machine base by adjusting the height and level of the machine base with the surface height adjustment tool with the individual spiral rotation mechanism This simplifies the operation and improves the work efficiency and installation accuracy, and saves the labor and time required for the work as much as possible, thereby shortening the work period of the entire work as much as possible.
[0030]
In addition, when adjusting the height and level of the machine base, it is difficult to adjust the lock base level 1/100 to 2/100, which is the standard for the centering adjustment, with the method of jacking, etc. Severe adjustment can be easily ensured by arranging the surface height fine adjustment tools with the spiral rotation operation mechanism for the number, and using the surface height fine adjustment devices with the individual spiral rotation operation mechanisms. .
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing an installed state of a blower 1 according to the present embodiment.
FIG. 2 is also an explanatory diagram showing an installation state of the blower 1 according to the present embodiment.
FIG. 3 is an explanatory plan view schematically showing a packer arrangement in the method of installing the blower 1 according to the present embodiment.
FIG. 4 is an explanatory side view schematically showing a method for installing the blower 1 according to the present embodiment.
FIG. 5 is an explanatory diagram of a metal bottomed mold for an anchor bolt.
FIG. 6 is an explanatory diagram of a temporary packer forming process.
FIG. 7 is also an explanatory diagram of a temporary packer forming step.
FIG. 8 is an explanatory diagram of a machine base installation adjustment process and a main packer placement process.
FIG. 9 is a perspective view showing an example of a surface height fine adjuster with a helical rotation operation mechanism according to the present embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Blower 2 Basic concrete 3 Anchor bolt 4 Metal bottom formwork 5 Temporary packer 6 Machine base 7 Main packer 8 Reinforcement frame 9 Concrete for anchor bolt fixation 11 Lock base 12 Height adjustment member 13 Spiral rotation operation mechanism Surface height adjustment tool with

Claims (1)

A foundation concrete having a plurality of anchor bolt setting holes with a predetermined depth at which an anchor bolt is erected substantially at the center is placed on a site to be installed such as an air conditioner equipment. A temporary packer to be arranged is formed, and a machine base such as an air conditioner to be installed on the temporary packer via a lock table and a height adjusting member is mounted, and the height and horizontality of the machine base are set. Adjust and form this packer between the concrete upper surface and the base of the air conditioner etc. on the anchor bolt fixing concrete to be anchored in the anchor bolt setting hole. In the installation work of air conditioning equipment etc. in the underground space,
When adjusting the height and level of the base of the machine base, the surface height fine adjustment tool with a spiral rotation operation mechanism is arranged in a predetermined plurality of locations near the site where the present packer is placed, and the spiral rotation operation mechanism is provided. A method for installing air conditioning equipment in an underground space, wherein the height and level of the level are adjusted and set by means of a surface height adjustment tool, and then the packer is formed.

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