JPH073825A - Correction device for erecting position of under structural center column, and inclination measuring device - Google Patents

Abstract

PURPOSE:To enable the erection of an under structural center column with high degree of accuracy and safely by using an inclination measuring device consisting of a TV camera, etc., and correcting up and down positions and inclination with a plurality of jacks and a vibrator. CONSTITUTION:The under structural center column 52 is suspended with a crane, and a vibrator 53 is operated to erect the column in a hole while preventing slime from being included. At that time, up and down position correcting jacks 23 and 24 mounted on a rotary holder 2 are operated to correct up and down positions of the under structural center column 52. While monitoring a measured picture of an inclination measuring device 3 consisting of a bottomed pipe body 31, a rope body 32, a weight 33, a light emission source 34, a target 35, a TV camera 36, etc., an underground inclination correcting jack 6 and a ground inclination correcting jack are operated, and the inclination of the structural center column 52 is corrected. Successively, a tremie pipe 54 is inserted into the hole, and concrete is placed. At that time, while operating the vibrator 53, machining tolerances is reconfirmed, and a position is recorrected, if necessary.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for correcting the installed position of a true column and a tilt measuring device.

[0002]

2. Description of the Related Art In recent large-scale construction in urban areas, the reverse construction method is actively used in order to shorten the construction period and reduce the amount of subsidence of the surrounding ground to improve the safety of construction. In this reverse construction method, first, a structure pillar that will be an underground pillar is built in the hole excavated in the ground, and after this is backfilled,
It is a construction method in which excavation and construction of floors and beams on the basement floor are alternately performed for each layer from the top to the bottom around the structure column in a predetermined range. By the way, since the true column is used as a part of the permanently installed column, it is necessary to construct it accurately. Therefore, conventionally, a technique has been developed in which a pedestal having a function of rotating the true and false posts in the upper part of the building hole can be rotated, and the vertical position and inclination of the true and true posts are corrected. (Patent No. 1266439). In addition, in the case of measuring the inclination of the true column in the above technique, two plumb bobs are attached to the side faces of the true column, and the verticality in the XY2 direction is measured by a person entering the building hole. Has been taken.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
There are the following problems. <a> The pedestal for rotating the structure column is up, down, left and right,
Since it is installed at the top of the building hole before building the structure column,
This will be an obstacle during the construction of the true pillar, making the construction work difficult.

<B> Since the inclination of the true column is measured by a person entering the building hole, the measurement accuracy and the measurement efficiency are lowered, and there is a problem in safety management.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and does not hinder the construction work of the structure pillar, and facilitates the construction work. It is an object of the present invention to provide a device for correcting the built-in position. Also,
It is an object of the present invention to provide an inclination measuring device for a structure column that can improve the measurement accuracy and the measurement efficiency of the inclination of the structure column and can ensure the safety of work.

[0006]

[Means for Solving the Problems] That is, the present invention provides a lower mount fixed near the ground opening of a building hole, a rotary mount installed on the lower mount so as to be horizontally rotatable, and a rotary mount mounted on the rotary mount. It is a device for correcting the installed position of the true post, which is composed of a group of jacks that carry out vertical position correction and tilt correction of the true post installed inside the hole. Further, it is a device for correcting the built-up position of the above-mentioned structure pillar, in which a vibration exciter attached to the structure pillar is added to the constituent elements. In addition, a bottomed pipe attached to the outer surface of the true column in parallel with the true column, a rope suspended in the pipe, a weight attached to the lower end of the rope, and a weight attached to the lower end of the weight. The position of the light emitted from the light source on the target, which consists of a light source that emits light downward, a target that is installed below the light source, and a television camera that is installed below the target and shoots the target. Is a tilt measuring device for the true column, which measures the tilt of the true column by photographing with a TV camera. In addition, a bottomed pipe attached to the outer surface of the true column in parallel with the true column, a rope suspended in the pipe, a weight attached to the lower end of the rope, and a weight attached to the lower end of the weight. This is a tilt measuring device for the true pillar that consists of a TV camera that shoots downwards and a target installed below the TV camera. The target is taken by the TV camera and the tilt of the true pillar is measured from the shooting screen. is there.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. <B> Position correction device (Figs. 3 and 4) The correction device for the installation position of the true column is a lower mount 1, a rotary mount 2 installed on the lower mount 1, and a group of jacks mounted on the rotary mount 2. 23 to 29.

(1) Lower mount 1 The lower mount 1 is a member such as a cross girder fixed around the aboveground portion of the stand pipe 5 built in the hole. Lower mount 1
When fixing the fixing device, for example, a fixing device 11 such as a holding screw rod is installed in the lower mount 1 in the horizontal direction.
The outer surface of the ground portion of the stand pipe 5 is clamped and fixed by 1. Further, a jack 12 such as a journal jack that expands and contracts in the vertical direction is provided at a proper position on the lower mount 1, and the upper and lower mounting positions of the rotary mount 2 mounted on the jack 12 are adjusted.

(2) Rotating mount 2 The rotating mount 2 is a T-shaped member or the like which is installed on the lower mount 1 so as to be horizontally rotatable. The vicinity of the three T-shaped ends of the rotary base 2 are fixed by pins, and one of them is a shaft support pin 21 that serves as a rotation shaft of the rotary base 2.
The other two are locking pins 22 which are configured to be removable. Therefore, when the locking pin 22 is pulled out, the rotary base 2 can rotate in the horizontal direction around the shaft support pin 21.

(3) Jack group On the rotary mount 2, jack groups 23 to 29 are mounted for correcting the vertical position and inclination of the true structure column 52. The vertical position correction jacks 23 and 24 are for correcting the vertical position of the true post 52, and are installed on the rotary base 2 so as to be vertically expandable and contractable, and a hard rubber is attached to the head of the rotary base 2.
Furthermore, a Teflon sheet is attached on top of it. The hard rubber is for equalizing the load on the true column 52,
Further, the Teflon sheet is for making the true column 52 slippery when the position is corrected. The above-ground tilt correction jacks 25 to 29 are installed on the rotary base 2 in the horizontal direction and with the telescopic rods thereof facing the center side around the true column 52. Therefore, when the telescopic rods of the jacks 25 to 29 are extended, the rod tips come into contact with the outer surface of the true post 52, and by further extension, the true post 52 can be pushed to adjust the position. Above jack group 23 ~
In 29, there are a case where it is operated independently by switching the switch and a case where it is interlocked, and in the case of interlocked operation, the construction efficiency can be improved.

(4) Exciter A known exciter 53 is installed in the middle of the true column 52.
The vibration exciter 53 is capable of vibrating at least the true column 52 in the horizontal direction, and is attached to the outer surface of the true column 52 or the like.

<B> Inclination measuring device (FIGS. 5 and 6) When measuring the verticality of a structure, a plumb bob is often used, and this method is used if there is no shaking of the measured object or the influence of wind. It can be said to be a highly reliable measurement method. In the conventional measurement by plumb bob, two points in the height direction of the object to be measured are set, the plumb bob is lowered to measure the distance to the object to be measured by a scale and visually, and the inclination is determined from the difference between the two measured values. I was asking. The inclination measuring device 3 of the present invention is characterized in that the conventional visually measured portion is measured using a television camera.

(1) Tubular Body The tubular body 31 is an outer shell of the tilt measuring device 3, and is a bottomed tubular body mounted on the outer surface of the true-finish column 52 in parallel with the true-post column 52. In the structure for attaching the tubular body 31 to the true column 52, a mounting pin 46 is provided on the position adjusting device 4 through a connecting metal fitting, and the mounting pin 46 is attached to the outer surface of the true column 52 in a hole of a mounting jig 47. It is configured to be detachable by inserting it from above into the. Further, as shown in FIG. 6, the position adjusting device 4 slides by stacking two slide plates 41 and 42, inserting the pipe body 31 into the insertion holes 43 of them, and turning the screw rods 44 and 45. The structure is such that the plates 41 and 42 can be moved to adjust the position of the tubular body 31.

(2) Weight Weight A cord body 32 such as a wire is suspended in the tubular body 31, and a weight 33 is attached to the lower end of the cord body 32. Also, the weight 3
A light emitting source 34 such as a laser light emitting device is attached to the lower end of 3, and the light emitting source 34 is configured to emit light downward.

(3) Target A target 35 is installed below the light emitting source 34 in a direction perpendicular to the tube 31. The target 35 is provided with a scale, a numerical value, etc., and the irradiation light from the light emitting source 34 and the target 3 are
Make sure you understand the difference from 5.

(4) Television Camera A television camera 36 for photographing the target 35 is installed below the target 35. The television camera 36 photographs the position of the light on the target 35 illuminated by the light emission source 34. Then, the image can be displayed on a television on the ground, and the inclination of the true column 52 can be directly read from the deviation of the position of the scale and the light of the target 35. However, since it takes some time to reduce the swing of the weight 33, the correct tilt amount is immediately obtained by calculating the center of gravity position of the range of the swinging light using an image processing device, a personal computer, or the like. It is also possible. It is also possible to fill the periphery of the weight 33 with a liquid 37 such as water to reduce the swing of the weight 33. In this case, the TV camera 36 is a waterproof type.

[0017]

[Construction method]

<A> Stand pipe installation and lower cradle installation As shown in FIG. 2, the stand pipe 5 is installed, the pile hole is excavated, and the rebar cage 51 is inserted. Next, the lower mount 1 is fixed to the stand pipe 5 by the fixing device 11.

<B> Installation of rotary mount The rotary mount 2 is installed on the lower mount 1. The rotary mount 2
The vertical position is adjusted by the jack 12 of the lower mount 1 and the lower mount 1 is fixed to the lower mount 1 by a bullman or the like.

<C> Construction of true structure column and correction of position of true structure column As shown in FIG. 1, the inclination measuring device 3 and the underground inclination correction jack 6 are attached to the true structure column 52 in advance. Then, the Yatco 54 or the like is mounted on the upper part of the true column 52, and is lifted by a crane to be installed in the hole. At this time, it is possible to prevent the slime filled in the holes from being caught in the periphery of the true column 52 by operating the vibration exciter 53 attached to the true column 52. Since the rotary gantry 2 is configured to be rotatable in the horizontal direction, it does not hinder the installation if it is rotated to be separated from the installation position of the true post 52. Yatco 5
4 is mounted on the vertical position adjustment jacks 23 and 24 of the rotary base 2, and by operating these jacks,
The vertical position of the true column 52 is corrected. While observing the measurement screen of the inclination measuring device 3, the underground inclination correction jack 6 and the above-ground inclination correction jacks 25 to 29 are operated,
The inclination of the true column 52 is corrected. As shown in FIG. 8, the underground inclination correction jack 6 has a structure in which the expansion and contraction movement of the cylinder 61 is transmitted to a W-shaped arm to expand and contract, and an appropriate number of it is installed around the true column 52.

<D> Concrete pouring, re-correction, etc. When the position correction of the true column 52 is completed, the tremie pipe 54 is inserted into the hole as shown in FIG. 1 to set the concrete. To do. At this time, due to the pressure of placing the concrete,
In order to prevent the true column 52 from moving in the horizontal direction, the vibration exciter 53 attached to the true column 52 is operated again. next,
The construction accuracy is reconfirmed by the inclination measuring device 3, and if the accuracy is less than the predetermined accuracy, the position is corrected again. Also in this case, the exciter 5
When 3 is operated, the placed concrete is fluidized, so that the position of the true column 52 can be easily corrected, and
It is possible to reduce the size of the position correction jack. When the reconfirmation and recorrection are completed, the inclination measuring device 3 is removed.
At this time, since the inclination measuring device 3 is only attached by the attaching pin 46, it can be easily removed by lifting it up. Then, after the concrete is cured, the lower mount 1, the rotary mount 2, and the underground inclination correction jack 6 are removed, the backfill work around the true column 52 is continued. In the above-mentioned embodiment, the construction pillar 52 is built first and the concrete is placed later. However, conversely, the concrete is placed first and the concrete pillar 52 is placed later. It can also be used in a construction method for building a building.

[0021]

Other Embodiments As another structure of the inclination measuring device, a case where a television camera 38 is attached to the lower end of the weight 33 as shown in FIG. 7 can be considered. In this case, the television camera 38 photographs the target 35 below,
The inclination of the true column 52 can be measured from the photographing screen.

[0022]

Since the present invention is as described above, the following effects can be obtained. <B> The gantry equipped with a group of jacks for correcting the position of the true column is configured to be horizontally rotatable. for that reason,
At the time of building the structure pillar, the gantry can be rotated to keep it away from the position where the structure pillar is installed. Therefore, the pedestal does not hinder the construction of the true pillar, and the construction work can be easily performed.

<B> The inclination of the true column can be measured entirely by a machine. Therefore, the construction accuracy and construction efficiency can be improved.

<C> Since it is not necessary for a person to enter the building hole as in the conventional case, the safety of the measurement work can be ensured.

<D> It is possible to prevent the slime filled in the hole from being caught in the periphery of the true column by operating the vibrator attached to the true column.

<E> When placing the concrete, and
By operating the vibration exciter when correcting the position after placing concrete, the placed concrete can be fluidized. Therefore, it is possible to prevent the true column from moving in the horizontal direction due to the pressure of the concrete. In addition, it becomes easier to correct the position of the true column,
It is possible to reduce the size of the position correction jack.

[Brief description of drawings]

[Fig. 1] An explanatory view of a construction process of a structural pillar

FIG. 2 is an explanatory diagram of a stand pipe installation process and a lower mount installation process.

FIG. 3 is a side view of a device for correcting the vertical position and inclination of the true column.

FIG. 4 is a plan view of the vertical position and tilt correction device for the true column.

FIG. 5 is an explanatory view of a tilt measuring device for a true column.

FIG. 6 is an explanatory view of a position adjusting device of the tilt measuring device.

FIG. 7 is an explanatory view of another structure of the tilt measuring device for the true column.

FIG. 8 is an explanatory view of a ground inclination correcting jack.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuo Yamada 1-25-1 Nishishinjuku, Shinjuku-ku, Tokyo Within Taisei Corporation (72) Inventor Tatsuo Minowa 1-25-1 Nishishinjuku, Shinjuku-ku, Tokyo Within Taisei Construction Co., Ltd.

Claims (4)

[Claims] 1. A lower mount fixed to the ground opening of the building hole, a rotary mount horizontally rotatably mounted on the lower mount, and a structure installed in the hole mounted on the rotary mount. A device for correcting the installed position of a true column, which consists of a group of jacks that corrects the vertical position and inclination of the column. 2. The apparatus for correcting a built-in position of a true post as claimed in claim 1, wherein a vibrator attached to the true post is added to the constituent elements. 3. A bottomed pipe attached to the outer surface of the true post in parallel with the true post, a rope suspended in the pipe, a weight attached to the lower end of the rope, and a weight of the weight. It consists of a light emission source that is attached to the bottom edge and emits light downward, a target that is installed below the light emission source, and a TV camera that is installed below the target and shoots the target. A tilt measuring device for a true pillar that measures the tilt of the true pillar by shooting the position of light with a TV camera. 4. A bottomed tubular body attached to the outer surface of the true column in parallel with the true column, a rope suspended in the tubular body, a weight attached to the lower end of the rope, and a weight of the weight. It consists of a TV camera that is attached to the lower end and shoots downwards, and a target that is installed below the TV camera. The target is shot by the TV camera and the tilt of the true pillar is measured from the shooting screen. measuring device.