JPS6125020A - Inserting method of measuring instrument - Google Patents

Abstract

PURPOSE:To enhance the reliability of observed data, by providing a leading wheel when a measuring instrument is inserted in an inserting hole for the measuring instrument, sealing the hole by a packer, filling a filler, and accurately inserting the device in the ground. CONSTITUTION:A measuring instrument 1 is inserted in an inserting hole for the measuring instrument. An inserting rod 15 is pushed to a guide pin 8 of the rear end of a linking rod 7. Then the measuring instrument 1 is inserted to a specified position. Thereafter, compressed air is fed through an air pipe 14 and a packer 6 is expanded. The packer 6 is sealed and engaged with the measuring- instrument inserting hole. Then the inside of the measuring-instrument inserting hole 2 in the vicinity of the measuring instrument 1 is filled with a filler through an injecting pipe 11 from a main injecting pipe 18. Before the filler is hardened, the main injecting pipe 18 is taken out of the injecting pipe 11. After the filler is hardened, the packer 6 is contracted, and the inserting rod 15 and the main injecting pipe 18 are taken out of the measuring-instrument inserting hole. The secondary injection is further carried out in the entire measuring-instrument inserting hole.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for inserting a meter into a meter insertion hole in any horizontal or upward direction, such as in an underground cavity.

[Prior art and its problems]

Conventionally, in order to bury a meter from the horizontal direction upward into the meter insertion hole around a large underground cavity, etc., it was necessary to insert the meter and then inject filler material all at once to block the meter insertion hole. This method has been adopted. However, with this method, the filler injected from the filler injection port deviates and flows out, creating a large gap between the instrument installed at the tip of the instrument insertion hole and the surrounding ground, and furthermore, the rod for inserting the instrument is buried. Because of this, there was a risk of unfavorable effects on measurements, and there were doubts about the reliability of the observation data. In addition, when inserting the instrument, the hole wall is scraped, and the cut soil accumulates around the instrument, resulting in problems with the integrity of the instrument and the surrounding ground.

[Purpose of the invention]

The present invention overcomes the drawbacks of conventional methods and provides an instrument insertion method that improves the reliability of observation data by properly centering the instrument within the instrument insertion hole and integrating it with the surrounding ground.

[Structure of the invention]

In the present invention, a steel rod with a guide wheel is attached to the tip of the instrument, a connecting rod is attached to the rear end of the connecting rod, which is equipped with a guide wheel and penetrates a packer that expands and contracts by fluid pressure, and the guide is attached to the rear end of the connecting p-rad. The insertion rod is connected by a pin, and an air vent pipe whose tip reaches the tip of the steel rod, an injection tube with a check valve attached to the tip, and an instrument lead-in cable are inserted and held in the packer, and then the insertion rod is connected to the connecting rod. Insert the pusher into the guide pin at the rear end into a predetermined position, then apply fluid pressure to the packer to inflate it, sealingly lock the packer in the meter insertion hole, and pour the filling material through the injection pipe connected to the main injection pipe. The filling material is filled around the instrument, the main injection pipe is pulled out from the injection pipe before the filling material solidifies, and after the filling material is assimilated, the packer is contracted, the insertion rod is pulled out, the instrument insertion hole is filled with the filling material again, and the instrument is installed. This is a method for inserting a meter, which is characterized in that the meter is installed in the meter insertion hole.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings. FIG. 1(G) is a side cross-sectional view showing the meter 1 inserted into the meter insertion hole 2, and FIG. 1 CB) is a front view of the device in FIG.

The instrument 1 to be inserted has a steel rod 4 having a predetermined length attached to its tip, and the steel rod 4 is provided with three radial leading wheels 5 as shown in FIG. 1 (color). The guide wheel 5 maintains the meter 3 in the center of the meter insertion hole 2 and prevents the earth from collapsing during insertion, and the steel rod 4 also serves as a stopper for the meter 8 in the meter insertion hole 2. A connecting rod 7 is attached to the rear of the meter 1, and the connecting rod 7 is provided with three guide wheels 9 having the same structure as the leading wheels 5, and is penetrated by a packer 6. The packer 6 is made of an elastic material and is expanded and contracted by air pressure supplied from the air pipe 14. Further, a guide pin 8 is attached to the rear end of the connecting rod 7 to connect the insertion rod 15. The packer 6 further holds an air vent pipe 10 reaching the tip of the steel rod 4, a filler injection tube 11 with a check valve 12 attached to the tip, and an introduction cable 13 for the meter, respectively. This injection pipe 11 has an injection main 18 at the rear end.
Insert and connect so that it can be easily removed. The pushing insertion rod 15 of the meter 1 has a push-off pin 16 attached to its tip and is detachably connected to the connecting rod 7 at its rear end. Also, guide wires 17 are connected to the connecting rod 7 and the injection tube 11, respectively. ．． 17b
Install.

Next, the method of inserting the instrument will be explained. FIG. 2 is an overall view of the meter 1 inserted into the meter insertion hole 2, and FIGS. 3 to 5 are enlarged views of section a in FIG. 2 and are step charts of the insertion method.

First, as shown in FIG. 2, the meter 1 is introduced into the meter insertion hole 2, and the insertion rod 15 is pressed against the guide pin 8 at the rear end of the connecting rod 7 to insert the meter 1 to a predetermined position.

l Fl ) Then, as shown in FIG. 3, compressed air is supplied from the air pipe 14 to expand the packer 6 and seal the packer 6 into the instrument insertion hole 2.

Subsequently, as shown in FIG. 4, the filling material 19 is filled into the instrument insertion hole 2 around the instrument 1 using the injection pipe 11 from the injection main pipe 18. In this case, the air around the instrument 1 is discharged through the air vent pipe 10, and since a check valve 12 is attached to the tip of the inlet pipe 11, the injected filler 19 will not flow back into the injection pipe 11. The instrument insertion hole 2 around the instrument 1 is fully filled up to the corners. When filling with the filler 19 is completed, the filler 19 overflows from the air vent pipe 10, so that it can be confirmed that the filler 19 has been filled.

Before the filling material 19 solidifies, first pull out the injection main pipe 18 from the injection tube 11 as shown in FIG.
Once solidified, the air inside the packer 6 is expelled from the air pipe 14 to contract the packer 6, the insertion rod 15 is separated from the connecting rod 7, and the injection main pipe 18 and insertion rod 15 are taken out from the instrument insertion hole 2. Next, secondary injection is performed into the entire meter insertion hole 2, and the insertion of the meter 1 is completed.

Figures 6 and 7 (A) Q3) are drawings showing the state in which the meter 1 is inserted into the meter insertion hole 2' drilled in the horizontal direction. Enlarged view and Figure 7 (B
) is a front view seen from the row opening in FIG. 7(4). 7th
In Figures (4) and (B), the leading wheels 5 and guide wheels 9 are each inverted V.
It has two leading wheels 5 and a guide wheel 9 mounted in a shape, and an insertion rod 15 for pressing the instrument 1 as shown in FIG.
A guide wheel 9 is attached to each in an inverted ■ shape. In this manner, the meter 1 can also be inserted into the horizontal meter insertion hole 2' at a predetermined position within the meter insertion hole 2'.

〔Effect of the invention〕

The present invention is equipped with a guide wheel when inserting the instrument into the instrument insertion hole, so it can be inserted into the predetermined position accurately without breaking the hole wall, and it is sealed with a packer and filled with filler material. Therefore, the instrument is completely integrated with the surrounding ground, and furthermore, unnecessary injection pipes and insertion rods are removed after the instrument is installed, so it can be inserted and installed accurately into the ground, improving the reliability of observation data.

[Brief explanation of drawings]

Figure 1 (4) is a side sectional view showing the inserted state of the instrument, () in Figure 1 is a front view seen from E in Figure 1 (G), and Figure 2 is the overall view with the instrument inserted into the instrument insertion hole. Figures 3 to 5
The figure is an enlarged view of part a in Figure 2 and is a process diagram of the insertion method.
The figure is an overall view of the instrument inserted into the instrument insertion hole drilled in the horizontal direction.
It is a front view seen from the row opening of FIG. (4). 1... Instrument 2, 2... Instrument insertion hole 4... Steel rod 5, 5... Leading wheel 6... Packer
7...Connecting rod 9,9゜9...Guide wheel
10...Air vent pipe 11...Injection pipe 12...
Check valve 13... Instrument introduction cable 14.
...Air pipe 15...Insertion rod 18...Injection main 19...Filling material M1 diagram (A) Figure 2 Figure 3 Figure 4 Figure 5 Procedural amendment (voluntary) 1981 September 5th, Commissioner of the Japan Patent Office Manabu Shiga 1, Indication of the case 1982 Patent Application No. 14723753, Person making the amendment Relationship to the case Patent applicant

Claims (1)

[Claims] Attach a steel rod with a guide wheel to the tip of the instrument, attach a connecting rod with a guide wheel to the rear and penetrate a packer that expands and contracts with fluid pressure, and insert an insertion rod with a guide pin at the rear end of the connecting rod. At the same time, an air vent pipe whose tip reaches the tip of the steel rod, an injection pipe with a check valve attached to its tip, and an instrument lead-in cable are inserted and held in the packer, and then the insertion rod is inserted into the guide at the rear end of the connecting rod. Insert the meter into the specified position by pressing it against the pin, then apply fluid pressure to the packer to inflate it, sealingly lock the packer in the meter insertion hole, and fill the area around the meter with filler material from the injection pipe connected to the injection main pipe. , the injection main pipe is pulled out from the injection pipe before the filling material solidifies, and after the filling material solidifies, the packer is contracted, the insertion rod is pulled out, the meter insertion hole is filled with the filling material again, and the meter is inserted into the meter insertion hole. A method of inserting an instrument characterized by installing it.