JP2008302273A - Refuse disposal process in waste disposal site, and excavation head for refuse disposal process - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance the efficiency of a process for reducing the volume of refuse of the whole waste disposal site by excavating and forming non-discharge consolidation holes in the waste disposal site, and filling the consolidated excavation holes with surface refuse. <P>SOLUTION: An excavation apparatus is provided with an excavation mechanism at the end of a large bore casing 11, having an end part of a reverse truncated conical shape provided with a spiral excavating protruded strip 125 with excavation bits 126 on the periphery, and excavation bits 126 having a spiral blade 127 with a shaft part for pushing up and a plurality of consolidation plates 128 provided on the periphery, holding the casing and rotatingly excavating. With this apparatus, excavation work forming excavation holes with no discharge, and refilling work scraping and charging surface refuse into the excavation holes by a backhoe and compacting with a weight suspended by a crane to fill the excavation holes with refuse, are performed immediately after the excavation work. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a waste disposal method for forming a drilling hole in a waste disposal site and introducing surface layer garbage into the drilling hole to reduce the volume of the dust, and to a drilling head used in the method. is there.

  Among industrial wastes, waste (garbage) that is not reused is dumped in a waste disposal site, and dumping is simply performed on the previous garbage, and the garbage is sequentially stacked. If left unattended, there is no reduction in volume other than natural compression by its own weight. For this reason, when the disposal site is full, another disposal site must be found.

  Therefore, as disclosed in Japanese Patent No. 3060045 (Patent Document 1), Japanese Patent No. 3476413 (Patent Document 2), and Japanese Patent Application Laid-Open No. 2006-15262 (Patent Document 3), there is no discharge at a waste disposal site. There is disclosed a means for reducing the volume of waste in the entire disposal site by excavating and forming a consolidation hole and filling the consolidation excavation hole with surface layer waste.

Japanese Patent No. 3060045. Japanese Patent No. 3476413. JP 2006-15262 A.

  The specific means for reducing the volume of dust disclosed in Patent Document 1 is to form the no-discharge drilling hole using a drilling earth and sand compacted auger provided so as to spirally rise in the rotation direction, and then to The trash is charged from the hole opening while reversing, and the digging hole is filled with the trash while pulling out the auger.

  In the treatment method, in the state where the auger shaft is present in the excavation hole, dust is introduced into the excavation hole, the cross section passing through to the bottom of the hole is narrow, and the dust input is not efficiently performed. Since the excavation bit is used for compaction of trash, there is a limitation in that it cannot be put into the digging hole unless it is pulverized trash.

  In addition, the excavation head has a drill bit at the tip of the spiral blade at a substantially horizontal position. Unlike the ground excavation, it is not always necessary to crush the accumulated garbage. There is a problem in terms of energy saving.

  Moreover, the specific means for reducing the volume of dust described in Patent Document 2 uses a drilling device comprising a casing provided with a compacting iron on the circumferential surface and a drilling rod having a drilling head that passes through the casing and protrudes from the tip. , Perform non-discharge excavation with a consolidation trowel of the casing, pull out only the excavation part (excavation head and excavation rod), leave the casing that protects the hole wall, put the surface layer garbage into the casing, and then pull out the casing Is.

  The above-mentioned treatment method adopts a double structure of the casing and the excavation part, which makes the structure complicated and has a problem in terms of the equipment cost. Exists in a compacted state, and it is necessary to pull out the casing which receives a large resistance, which is also problematic in terms of work efficiency.

  The specific means for reducing the volume of dust described in Patent Document 3 is to form a non-discharge drilling hole (consolidation hole) using a predetermined auger at the dust accumulation site, and then protect the hole wall in the drilling hole from which the auger has been pulled out. In order to achieve this, it is described that a casing having a smooth outer peripheral surface is stowed, and the casing is pulled out while charging or filling the casing with or after filling. Work is required and it cannot be said that it is efficient work.

  In addition, the excavation head employs a screwing method in which a spiral blade is provided on the inverted conical head. However, when large trash is buried, there is a risk that the drilling operation of the excavation hole may be difficult. is there.

  Therefore, the present invention proposes a garbage disposal method in a waste disposal site with excellent work efficiency and an excavation head employed in the treatment method.

  The excavation head used for the garbage disposal method in the waste disposal site according to the present invention has an inverted frustoconical shape with an apex angle of about 45 degrees, and an excavation protrusion that twists about 90 degrees from the tip to the end of the inverted frustoconical end. In addition to providing a strip, a drill bit is provided at the tip and midway of the drilling ridge, and a shaft portion continuous above the tip portion rotates up to the spiral blade for pushing up and the spiral blade corresponding to the drill hole. The end of the direction has a diameter corresponding to the excavation hole, and a plurality of compacted plates are provided around the height so as to partially overlap upward in accordance with the rotation direction. It is characterized by having a connection structure with a matching casing.

  Further, in the waste disposal method according to the present invention, in the waste disposal site in a waste accumulation state, the excavation bit is attached to the tip of a casing of φ1000 or more so as to be integrated with the casing. An excavator equipped with an excavating mechanism for holding and rotating excavation, and excavator that forms an excavation hole with a desired depth without discharge. At the same time, it carries out a backfilling work that fills the trash with the weight suspended by the crane device and fills the digging hole with the surface layer trash. After the primary construction that is sequentially repeated, secondary construction in which excavation and backfilling are performed between excavation points of the primary construction is performed.

  Thus, when excavating the garbage collection site with a drilling device that holds and rotates the casing equipped with the drilling head, the rotational force is converted into the drilling propulsion force by the drilling ridge of the drilling head, and in particular except for the need for crushing The digging is carried out while expanding the dust accumulation portion, and the dust is continuously pressed against the hole wall by the compaction plate, and further, the consolidation hole wall is maintained by the casing during the excavation. For this reason, even if the casing is pulled out, the hole wall does not collapse immediately, so that the accumulated dust can be reduced in volume by putting the surface layer garbage into the excavation hole before collapsing and filling with the weight.

  Since the configuration of the present invention is as described above, in the waste disposal site that is a garbage collection site, the volume reduction processing of the collected garbage is basically performed by expanding and excavating instead of crushing and excavating the garbage. Therefore, excavation work is efficiently performed. In addition, since the garbage is not backfilled with the casing for protecting the hole wall left as in the conventional volume reduction work, there is no need to perform a wasteful work such as a casing pulling-out work in which dust is present inside and outside in a compact state. Along with drilling holes with a diameter, efficient work is realized by using existing large civil engineering machines.

  Next, an embodiment of the method of the present invention will be described. The implementation apparatus of the present invention includes an excavation body 1, an excavation apparatus 2, a backhoe 3, and a crane apparatus 4.

  The excavation body 1 is composed of a casing 11 and an excavation head 12, and the casing 11 is a hollow double pipe (standard pipe of φ1500 mm (or φ1000 mm) with a smooth outer peripheral surface (grating between the inner cylinder part and the outer cylinder part). A fitting connection portion 111 that can be inserted and connected to the upper and lower ends, and the excavation head 12 and the casing 11a to be added are connected to form a desired length. It can be done.

  The excavation head 12 includes a tip 121, a shaft 122, a base 123, and an injection tube 124. The tip 121 has an inverted truncated cone shape with an apex angle of about 45 degrees, and the inverted truncated cone from the distal end. A drilling ridge 125 that twists about 90 degrees until the end is provided, and a drilling bit 126 is provided at the tip and halfway of the digging ridge 125.

  The shaft portion 122 is continuous above the tip portion 121, and the pushing-up spiral blade 127 corresponding to the excavation hole A (matching the outer diameter of the casing 11), and the rotational direction end side is excavated above the spiral blade 127. A combination of a plurality of consolidating plates 128 having a diameter corresponding to the hole A and a plurality of circumferentially arranged heights partially overlapping upward corresponding to the rotation direction is provided in two upper and lower stages. It is connected to the casing 11 and is continuous upward.

  The injection pipe 124 is disposed inside the excavation head 12 and has an opening at the center of the tip of the tip 121, an injection port at the opening, and a pipe connection at the upper end. Is provided with piping that passes through the casing 11 and is necessary for excavation (for example, a cement liquid in the case where water or a dust accumulation layer is soft due to frictional heat cooling of the excavation bit and it is difficult to form a hole wall. Bentonite liquid).

  The excavation apparatus 2 is an existing apparatus called an excel machine, and includes an excavation mechanism 21 that holds the casing 11 and rotates and excavates it. The backhoe 3 and the crane apparatus 4 use well-known existing equipment.

  Next, implementation of the present invention construction method (construction work) will be described using the above-described implementation apparatus. The construction involves excavation and backfilling. The excavator connects and fixes the excavation head 12 to the top of the casing 11, lifts it with the crane device 4, attaches it to the excavation mechanism 21 of the excavation device 2, and excavates the hole. The excavation is started at the planned excavation position a1 of A (FIG. 2).

  For excavation, the excavation body 1 is rotated and the accumulated dust B is spread and expanded while being twisted into the accumulated dust A by the action of the excavation ridge 125 of the excavation head 12. The wall is pressed into a consolidated state, and the consolidated hole wall is maintained by the casing 11 as the excavation proceeds.

  In particular, the tip 121 has an inverted frustoconical shape with an apex angle of about 45 degrees and is provided with a drilling ridge 125 that twists about 90 degrees from the tip to the end of the inverted truncated cone. Excavation work is done efficiently. Further, when there is a hard dust portion during excavation, it is crushed by the excavation bit 126, and the crushed piece is continuously pressed against the hole wall by the compaction plate 128 while being conveyed upward by the spiral blade 127 ( FIG. 3).

  When excavation proceeds to some extent, the casing 11a of the next stage is lifted and connected to the casing 11 by the crane device 4 (FIG. 4), and further excavation is performed. Excavation is performed to a certain depth so as not to break through the isolation sheet C of the waste disposal site.

  When excavation proceeds to a predetermined depth, the excavation is completed, the casing 11a is lifted and removed, the excavated body 1 is pulled up, and the excavation hole A is moved to the next planned excavation position a2 to the extent that it does not affect the collapse of the hole wall. Move and carry out the next excavator.

  The backfilling is performed immediately after the excavation is completed, and the excavation hole A is maintained by the casings 11 and 11a until immediately before the excavation is completed, so that the hole wall is not removed even if the casings 11 and 11a are pulled out. There is no immediate collapse. Then, the surface layer garbage b is scraped from the accumulation location by the backhoe 3, scooped up and put into the excavation hole A (FIG. 7).

  Further, the input waste b1 is filled with the weight D suspended by the crane device 4 (FIG. 8), and as much surface layer waste b as possible is backfilled in the excavation hole A. During the backfilling, the next excavation is performed, and the excavation and backfilling are sequentially performed within a desired range of the disposal site (primary construction: FIG. 9).

  Next, when the primary construction is completed, the excavator that excavates the excavation hole A between the excavation points of the primary construction and the secondary construction that sequentially performs the backfilling are carried out, and the accumulated garbage B at the waste disposal site is increased. The volume will be reduced. Of course, the third and fourth constructions may be performed with a large interval between excavators.

  In particular, by using existing civil engineering equipment other than the excavation head, the construction cost can be reduced, and the large-scale excavation hole can be quickly filled with surface dust without performing unnecessary work. The work efficiency has also been improved.

It is explanatory drawing of embodiment of the excavation head of this invention, (a) is a front view (b) is sectional drawing of a shaft part. Explanatory drawing of the work process of this invention construction method (before excavation). Explanatory drawing of the same work process (at the start of excavation). Explanatory drawing of the same work process (continuation of excavation and casing addition). Explanatory drawing of the same work process (at the end of excavation). Explanatory drawing of the same work process (extraction body extraction work). Explanatory drawing of the same work process (next excavation disclosure and start of backfilling work). Explanatory drawing of the same work process (filling work of backfilling work). Explanatory drawing of the same work process (at the end of primary construction). Explanatory drawing of the same work process (work condition of secondary construction). Explanatory drawing of the same work process (at the end of secondary construction).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Excavation body 11 Casing 11a Next stage casing 111 Fitting connection part 12 Excavation head 121 Tip part 122 Shaft part 123 Base part 124 Injection pipe 125 Excavation protrusion 126 Excavation bit 127 Spiral blade 128 Consolidation board 2 Excavator 21 Excavation mechanism 3 Backhoe 4 Crane equipment A Drilling hole B Accumulated waste C Separation sheet D Weight

Claims (3)

  The tip has an inverted frustoconical shape with an apex angle of about 45 degrees, a drilling protrusion that twists about 90 degrees from the tip to the end of the inverted truncated cone, and a drilling bit is provided at the tip and midway of the drilling protrusion The shaft part continuous above the tip part is a spiral blade for pushing up corresponding to the excavation hole, the diameter corresponding to the excavation hole on the end side in the rotation direction above the spiral blade, and sequentially corresponding to the rotation direction A dust disposal method comprising: a plurality of compaction plates provided at a height that partially overlaps upward, and a base portion continuous above the shaft portion having a connection structure with a casing that coincides with the excavation hole For drilling head.   The excavation head for a refuse disposal method according to claim 1, further comprising: an injection pipe having an opening at a center of a front end and an injection pipe provided at an upper end of the opening provided with an injection port.   In a refuse disposal waste disposal site, at the tip of a casing of φ1000 or more, the tip is an inverted frustoconical shape, and a spiral excavation protrusion is provided on the peripheral surface. An excavation bit is provided, and a shaft portion continuous above the tip portion rotates with a spiral blade for pushing up corresponding to the excavation hole and a diameter corresponding to the excavation hole on the end side in the rotation direction above the spiral blade. A excavation bit including a consolidating plate having a plurality of circumferences arranged at a height that partially overlaps upward in accordance with a direction, and a base portion continuous above the shaft portion and having a connection structure with a casing that coincides with the excavation hole An excavator equipped with an excavating mechanism that is mounted so as to be integrated with the casing and that holds the casing and rotates and excavates the excavator to form a drilling hole of a desired depth without discharge; Immediately dump surface dust into the borehole. The excavation is carried out while drilling holes at predetermined intervals. Waste disposal at a waste disposal site, characterized by performing secondary construction to perform excavation and backfilling between the excavation points of the primary construction after the primary construction in which the construction and backfilling works are sequentially repeated Construction method.

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