JPH11315540A - Slime treatment equipment - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a slime processing device capable of fully operating an excavator exclusively for excavation, improving the efficiency of excavation, and performing slime processing reliably and quickly without deteriorating muddy water as much as possible. I do. SOLUTION: The present invention relates to a slime processing apparatus for filling muddy water 20 and processing slime at the bottom of a digging groove 10 formed by excavation in the muddy water 20. A frame body 40 having a shape substantially equivalent to the shape of the excavation groove 10, and a frame body 40 insertable into the excavation groove 10;
Muddy water injection pipe 42 with injection port 58 arranged downward,
A jet pump 44 for supplying muddy water so that the muddy water 16 in the excavation groove 10 can be jetted to the muddy water injection pipe 42;
Is disposed almost at the center of the lower part of
The pump has a mud pump 46 having a zero and a mud discharge hose 48 for transporting the slime from the mud pump 46 to the ground.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slime treatment device, and more particularly to a slime treatment device for easily treating slime remaining in a shaft or a trench.

[0002]

2. Description of the Related Art In civil engineering work, excavation for constructing an underground continuous underground wall or vertical shaft (vertical shaft) is performed, for example, as shown in FIG. The excavator excavates one gut of the excavation groove 10 in the vertical direction. Similarly, three gut digging grooves 10
Are continuously formed in an arc shape to form one leading element 12.

In a state where the preceding element 12 is formed,
In the preceding element 12, a reinforced basket is inserted and concrete is poured.

Next, a succeeding element 14 is formed adjacent to the preceding element 12 by the same process as that of the preceding element 12.

[0005] These steps are repeated to form a continuous underground wall in a ring shape, and thereafter the inside of the continuous underground wall is excavated.

In such continuous underground wall construction, slime treatment must be carefully performed in order to build a high quality concrete wall.

The slime process includes a primary process performed immediately after the excavation is completed and a secondary process performed immediately before the reinforcing bar is built.

The primary processing is carried out using the excavator as it is, because the secondary processing is preceded thereafter. However, in the case of the rotary excavator, the excavator is also used in the secondary processing. It is common to use.

[0009] This is to reduce the equipment cost as much as possible. However, in the secondary processing requiring strict control, the processing time is long, so that the next excavation is not immediately started. Since the slime is transported at an unnecessarily large flow rate by rotating the rotating bit of the machine, sufficient muddy water treatment cannot be performed, causing a problem that muddy water is deteriorated.

[0010] In particular, when the muddy water is degraded, it is necessary to take a long time to replace the good liquid after the slime treatment, resulting in a disadvantage that the construction time is prolonged.

Further, when the excavation groove 10 of the succeeding element 14 is excavated after the concrete of the preceding element 12 is cast, the side surface of the preceding element 12 is excavated by an excavator to form a cutting surface 16 for a joint. However, if mud adheres to the cutting surface 16,
Since the joint part becomes uncertain and water may enter from the joint part, a cleaning brush is attached to the excavator to clean the cutting surface 16, but the state is still insufficient. ing.

The present invention has been made in view of the above-mentioned conventional problems, and has as its object to operate the excavator at full operation exclusively for excavation so as to improve excavation efficiency and to minimize the deterioration of muddy water. An object of the present invention is to provide a slime processing apparatus capable of performing slime processing reliably and quickly.

Another object of the present invention is to provide a slime treatment apparatus capable of reliably cleaning a cutting surface of a preceding element and obtaining a good continuous underground wall of a joint portion.

[0014]

In order to achieve the above object, the invention according to claim 1 is directed to a slime processing apparatus for filling muddy water and treating slime at the bottom of a digging groove formed by an excavator in the muddy water. A frame body having a shape substantially corresponding to the shape of the excavation groove, and a slime agitator having a shape that can be inserted into the pit, and a slime stirrer disposed on an outer peripheral portion of the frame body and having an injection port directed downward. Means, muddy water supply means for supplying muddy water in the digging groove to the slime stirring means so that the muddy water can be jetted, and slime suction means disposed substantially at the center of the lower portion of the frame body and having a downwardly directed suction port; And sludge discharging means for transporting the slime from the slime suction means to the ground.

According to the present invention, slime treatment can be performed by a dedicated slime treatment device separately from the excavator. Therefore, the excavator is operated exclusively for excavation, the efficiency of excavation is improved, and the construction time is reduced. Shortening is possible.

Further, since the slime is stirred by the slime stirring means by using the muddy water and the slime is sucked by the slime sucking means, the slime treatment can be performed without rotating the rotating bit and deteriorating the muddy water as much as possible. And can be done quickly.

According to a second aspect of the present invention, there is provided the cleaning method according to the first aspect, wherein muddy water is sprayed onto a cutting surface formed by excavating the side surface of the preceding element when excavating the succeeding element by the excavator. A nozzle is provided.

According to the present invention, the cutting surface of the preceding element can be reliably cleaned by injecting the muddy water from the washing nozzle, and a good continuous underground wall of the joint can be obtained.

According to a third aspect of the present invention, in the second aspect, the washing nozzle is connected to the muddy water supply means,
The slime stirring means and the switching means are capable of switching.

According to this invention, the muddy water supply means can be simplified by sharing the muddy water supply for the washing nozzle and the slime stirring means.

The invention according to claim 4 is the invention according to claim 2 or 3.
, A cleaning brush for cleaning a cutting surface of the preceding element is provided on a side surface of the frame body.

According to the present invention, by using the cleaning brush in addition to the cleaning nozzle, the cutting surface can be more reliably cleaned.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the slime suction means is constituted by a mud pump.

According to the present invention, a simple structure can be realized without using a large suction means.

According to a sixth aspect of the present invention, in any one of the first to fifth aspects, the slime stirring means is disposed on each of the side surfaces of the frame body facing each other, and the muddy water supply means is provided with the respective slime stirring means. It is characterized by comprising two jet pumps corresponding to the means.

According to the present invention, the slime is stirred from both sides of the slime suction means by the slime stirring means.
The slime can be efficiently guided to the slime suction means, and the apparatus can be configured in a well-balanced manner by the two jet pumps.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 3 is a diagram showing a state of excavation of a trench, and FIGS. 1 and 2 are diagrams showing a slime processing apparatus according to an embodiment of the present invention.

The state of excavation will be described with reference to FIG. 3. The excavator 18 is used to excavate the excavation trench 10.

In the excavation groove 10, muddy water 20
Is filled.

The excavator 18 is a crane 2 installed on the ground.
1 is supported in a suspended state in the excavation groove 10 via the suspension wire 22 by a rotation bit 24 at the lower end.
The bottom of the excavation groove 10 is excavated. The excavation of the excavator 18 is stabilized by the adjustable guide 30.

The vertical position of the excavator 18 is controlled by adjusting the length of the suspension wire 22 by a winch 26 mounted on the crane 21.

A mud pipe 28 is connected to the excavator 18, and the earth and sand excavated by the rotary bit 24 is sucked up to the ground together with the muddy water 20 by the mud pipe 28.

A reference position measuring device 32 is connected to one end of the excavator 18 and an optical fiber gyro measuring device 34 is mounted to the other end.

The reference position measuring device 32 connects a position detecting wire 36 from the ground to the upper part of the excavator 18, moves the supporting point horizontally on the ground side, and moves the supporting point in the horizontal direction. The vertical movement of the excavator 18 is measured by maintaining the verticality of the position detection wire 36 by matching the coordinates of the upper and lower two points.

The optical fiber gyro measurement device 34 is used as a compass indicating true north, and measures the torsion of the excavator 18 based on a deviation from true north.

The reference position measuring device 3
2. The posture, the position, and the like of the excavator 18 are measured by the optical fiber gyro measurement device 34 and the like, the amount of deviation is calculated, and the excavator 18 is controlled based on the calculated amount.

After excavation of the excavation trench 10 by such an excavator 18, slime processing is performed by a slime processing device 38 shown in FIGS.

The slime processing device 38 includes a frame body 40, a muddy water injection pipe 42 as slime stirring means,
A jet pump 44 as mud supply means, a mud pump 46 as slime suction means, a sludge hose 48 as sludge discharge means, a washing nozzle 50, and a cleaning brush 52
And

The frame body 40 has a shape substantially corresponding to the cross-sectional shape of the excavation groove 10, and can be inserted into the excavation groove 10.

On the upper surface of the frame body 40, hanging pieces 54 are attached at four corners.
It is supported in a suspended state by a crane 21 via a suspension wire 22 connected to 4.

A skirt member 56 for sucking slime is attached to a lower portion of the frame body 40 so as to cover the periphery.

The muddy water injection pipes 42 are vertically arranged on the outer peripheral portion of the frame body 40, specifically, on the opposite side surfaces of the frame body 40.
Is in a state where the injection port 58 is arranged downward.

Two jet pumps 44 are provided corresponding to the respective muddy water injection pipes 42.
4 is connected to each muddy water injection pipe 42 and
The muddy water 20 is supplied to each muddy water injection pipe 42 so that the muddy water can be jetted from both sides of the bottom of the muddy water excavation groove 10 so that the slime can be stirred toward the center.

The mud pump 46 is disposed substantially at the center of the lower portion of the frame body 40, and has a suction port 60 disposed downward.

The sludge discharge hose 48 has one end connected to the mud pump 46 and the other end connected to a sludge booster pump 64 via a pump reel 62 on the ground.

The power captire 66 of the jet pump 44 and the mud pump 46 is guided to a captire reel 68 on the ground.

As described above, the injection port 58 of the muddy water injection pipe 42
The muddy water 20 in the excavation groove 10 is jetted from the side, and the slime in the area surrounded by the skirt member 56 is stirred from both sides toward the suction port 60 of the central muddy pump 46, and sucked by the mud pump 46. Slime, draining hose 48
The slime treatment can be performed without using the excavator 18 by transporting to the ground, and the excavator 18 can be used exclusively for excavation, so that the excavation efficiency is improved and the construction period can be shortened.

Further, by performing the slime treatment without using the excavator 18, it is possible to perform the treatment without excavation, thereby preventing deterioration of the muddy water and contributing to shortening the construction period. Become.

Further, it is preferable that the muddy water conveyed to the ground is simultaneously slime-removed and then prepared, and the inside of the excavation trench 10 is replaced with a good liquid.

When the excavator 18 excavates the trailing element 14, the cleaning nozzle 50 removes and cleans mud adhering to the cutting surface 16 by excavating the side surface of the preceding element 12 by spraying muddy water. Are arranged on both sides.

The washing nozzles 50 are respectively connected to the corresponding jet pumps 44 so as to jet muddy water in the excavation grooves 10.

Further, the washing nozzle 50 and the muddy water injection pipe 42 are connected to a switching valve 70 as switching means.
During the cleaning of the cutting surface 16, the muddy water injection pipe 42 is closed, and the slime processing is performed, and then the cleaning nozzle 50 is closed.

The washing nozzle 50 is closed during excavation of the preceding element 12.

As described above, by cleaning the cutting surface 16 with the cleaning nozzle 50, it is possible to ensure the joint portion of each element.

The cleaning brush 52 is provided so as to protrude from the side surface of the frame body 40, and rubs the cutting surface 16 of the preceding element 12 to remove mud attached to the cutting surface 16.

By using the cleaning brush 52 in addition to the cleaning nozzle 50, the cutting surface 16 can be more reliably cleaned, and the joint portion can be made more reliable.

As described above, the slime treatment can be performed with a compact structure, and the cutting surface can be reliably cleaned.

The present invention is not limited to the above embodiment, but can be modified into various embodiments within the scope of the present invention.

For example, two jet pumps are used, but it is also possible to use one jet pump.

It is also possible to switch the cleaning nozzle left and right.

Further, the number and mounting positions of the cleaning nozzles and cleaning brushes can be appropriately set.

[0063]

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state in which slime processing is performed using a slime processing apparatus according to one embodiment of the present invention.

FIG. 2 is an enlarged sectional view showing the slime processing apparatus of FIG.

FIG. 3 is a cross-sectional view showing a state where a digging trench is excavated by an excavator.

FIG. 4 is a plan view showing an excavation state of an excavation trench.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 excavation groove 12 leading element 14 trailing element 16 cutting surface 38 slime processing device 40 frame body 42 muddy water injection pipe 44 jet pump 46 mud pump 48 sludge hose 50 cleaning nozzle 52 cleaning brush 58 injection port 60 suction port 70 switching valve

Claims (6)

[Claims] 1. A slime processing apparatus for filling slime and treating slime at the bottom of a digging groove formed by digging in a muddy water by an excavator, the slime processing device having a shape substantially corresponding to the shape of the digging groove, A frame body that can be inserted into a pit, slime stirring means disposed on an outer peripheral portion of the frame body, and an injection port arranged downward, and muddy water capable of jetting muddy water in an excavation groove to the slime stirring means. Muddy water supply means for supplying, slime suction means disposed substantially at the center of the lower part of the frame body and having a suction port downward, and sludge discharge means for conveying slime from the slime suction means to the ground. A slime treatment device comprising: 2. A cleaning nozzle according to claim 1, wherein a cleaning nozzle is provided on a side surface of the frame body to spray and wash muddy water on a cutting surface obtained by excavating a side surface of a preceding element when excavating a subsequent element by an excavator. A slime treatment device. 3. The slime processing apparatus according to claim 2, wherein the washing nozzle is connected to the muddy water supply means, and is switchable by the slime stirring means and a switching means. 4. The slime processing device according to claim 2, wherein a cleaning brush for cleaning a cutting surface of the preceding element is provided on a side surface of the frame body. 5. The slime treatment apparatus according to claim 1, wherein the slime suction means is constituted by a mud pump. 6. The slime stirring means according to any one of claims 1 to 5, wherein the slime stirring means is respectively provided on opposite side surfaces of a frame body, and the muddy water supply means comprises two slime stirring means corresponding to the respective slime stirring means. A slime processing device comprising a jet pump.