WO2022044153A1 - 多連式油圧ビッガー割岩装置 - Google Patents

多連式油圧ビッガー割岩装置 Download PDF

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Publication number
WO2022044153A1
WO2022044153A1 PCT/JP2020/032151 JP2020032151W WO2022044153A1 WO 2022044153 A1 WO2022044153 A1 WO 2022044153A1 JP 2020032151 W JP2020032151 W JP 2020032151W WO 2022044153 A1 WO2022044153 A1 WO 2022044153A1
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WO
WIPO (PCT)
Prior art keywords
bigger
rock
hydraulic
wedge
horizontal hanger
Prior art date
Application number
PCT/JP2020/032151
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English (en)
French (fr)
Japanese (ja)
Inventor
時寛 金田
明久 石本
哲也 飯田
Original Assignee
ヤマモトロックマシン株式会社
株式会社石本建設
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ヤマモトロックマシン株式会社, 株式会社石本建設 filed Critical ヤマモトロックマシン株式会社
Priority to PCT/JP2020/032151 priority Critical patent/WO2022044153A1/ja
Priority to JP2021571960A priority patent/JP7176138B2/ja
Publication of WO2022044153A1 publication Critical patent/WO2022044153A1/ja

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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/02—Other methods or devices for dislodging with or without loading by wedges

Definitions

  • the present invention relates to a multi-series hydraulic bigger rock breaking device in which two or more biggers are mounted at the same time to improve the rock breaking construction efficiency.
  • a Bigger split rock method using a hydraulic Bigger split rock device in which a wedge-shaped wedge liner is inserted and spread by a wedge to generate cracks around the perforation is known.
  • a split rock construction method that can improve the construction efficiency and reduce the construction cost, a drilling process of forming a drilling of a predetermined depth in a hard material such as bedrock or concrete, and a rust are placed in the drilling.
  • the Bigger split rock step that causes cracks around the perforation
  • the secondary crushing step that crushes the area around the cracked perforation with a crusher such as ripping and breaker, and the crushing that was crushed by the secondary crushing step.
  • the sedimentation of the crushed material is prevented and suspended in the perforation before the Bigger split rock step, or the sedimentation of the crushed material is predetermined.
  • a method of filling a highly viscous fluid that blocks time is proposed (Patent Document 1).
  • the working surface of the wedge liner is divided in the longitudinal direction, and the wall thickness of each working division is devised. It has been proposed that the wedge liner is less likely to be bent or broken (Patent Document 2).
  • the Bigger split rock method was compared with the blasting method by drilling in a direction parallel to the free end face and controlling the working surface of the wedge liner to control the working surface of the wedge liner. It is possible to control the running crack direction. Then, it was found that when cracks run in the same direction in which cracks compete at the same time from adjacent Bigger holes by utilizing this, the easiness of cracking and the crack length are more than doubled due to the synergistic effect. Based on this finding, it is an object of the present invention to provide a multiple hydraulic bigger rock breaking device capable of more than double the work efficiency.
  • the rock breaking device according to the present invention is a multi-series hydraulic rock breaking device in which a plurality of biggers are arranged in a row at the tip of an operating arm of an excavator such as a hydraulic shovel, and is attached to the tip of an operating arm such as a hydraulic shovel 10.
  • a twist reduction bar 24 mounted in parallel with the connecting portion, a rotatable mounting bracket 25 consisting of a swivel or the like that rotatably mounts the bigger 30 around the bigger axis on the horizontal hanger 20, and the tip of the bigger 30 with respect to the free end face.
  • the lower ends of the paired biggers 30 and 30, which are provided with an operation handle 26 for adjusting the spreading direction of the wedge liner 31 and are attached to both wings of the horizontal hanger 20 in a well-balanced manner, are pierced in parallel with the free end face of the split rock.
  • the wedge liner 31 of each bigger 30 is guided to the adjacent bigger hole, and the wedge liner 31 of each bigger 30 is controlled and inserted by the operation handle 26 so that the spreading direction is substantially perpendicular to the free end face, and each wedge is hydraulically inserted. It is in a multiple hydraulic bigger split rock device characterized in that the wedge liners in the adjacent biger holes can be pushed in parallel and spread out in parallel.
  • multiple Biggers are simultaneously inserted into the Bigger holes drilled in parallel with the free end face of the bedrock, and the spreading directions of the wedge liners of the multiple Biggers cooperate. Can be controlled as such.
  • the perforation distribution should be 1.5 times or more, preferably 2.0 times or more the standard hole spacing (D). Therefore, even if the drilling depth is the same, the work efficiency can be easily doubled or more.
  • the hole spacing (D) of the predetermined drilling distribution is doubled with the Bigger HRB1000 compared to the bedrock when the Bigger HRB1000 alone has a rock splitting capacity of 0.5 m, the spacing is doubled to 1.0 m or tripled. Since the hole spacing (D) of 1.5 m can be adopted, the rock drilling volume ratio can be simply doubled or tripled. Normally, the slit hole may be cracked before the bigger hole is split to secure a slit (free surface), but efficient work efficiency can be obtained by combining with the multiple hydraulic bigger split rock construction method of the present invention. Can be done.
  • a collision prevention bar 40 for connecting the paired biggers 30.30 in the vicinity of the operation handle 26 is provided and held at regular intervals. 30s do not collide and are inserted into adjacent Bigger holes while maintaining mutual spacing. Suspended from the pair of both wings 21a, 21a of the horizontal hanger 20 equidistant from the center 21 and adjusted at predetermined intervals from the minimum pitch (for example, 400 mm) to the maximum pitch (for example, 1800 mm) corresponding to the Bigger split rock pitch (hole spacing D). Since a plurality of possible mounting holes 21b are provided side by side, the biggers can be suspended and mounted at appropriate intervals according to the distribution design of the adjacent bigger holes.
  • a perspective view of a double hydraulic bigger breaking rock device which is one of the specific examples of the present invention, shows a state in which an assistant assists a pair of biggers attached to the tip of the operation arm of the hydraulic excavator to operate the hydraulic excavator. ..
  • FIG. 1 A front view, (b) a partially enlarged view, and (c) a side view showing a multiple hydraulic bigger and its mounting structure of the multiple hydraulic bigger split rock device of the present invention are shown.
  • FIG. 1 A front view, (b) a partially enlarged view, and (c) a side view showing a multiple hydraulic bigger and its mounting structure of the multiple hydraulic bigger split rock device of the present invention are shown.
  • FIG. 1 A front view, (b) a partially enlarged view, and (c) a side view showing a multiple hydraulic bigger and its mounting structure of the multiple hydraulic bigger split rock device of the present invention are shown.
  • a rock breaking capacity test is performed.
  • the rock breaking step (b) the single HRB1000 and the single HRB1700 are used as the rock breaking device, whereas in the present invention, the HRB1000 double type is used.
  • the debris removal step (c) a large breaker is used to remove the debris and confirm the cracked rock depth.
  • (1) drilling step drilling is performed at a pitch and a drilling depth determined in the measured area.
  • the standard drilling diameter and hole length for the HBR-1000 is ⁇ 100 mm x 1.5 m, and for the HBR-1700, ⁇ 125 mm x 2.5 m (see Fig. 4 (1) (a)).
  • the standard arrangement of drilling is staggered (see FIGS. 4 (1) and 4 (b)), and the intervals are set appropriately according to the quality and hardness of the bedrock.
  • the hole spacing (D) and / or the resistance wire (W) can be particularly the hole spacing (D) of 1.5 times or more, preferably 2.0 times or more.
  • (2) split rock step A bigger wedge liner is inserted into the perforated hole, the wedge is hydraulically pushed in, and the wedge liner is expanded to crush the rock (primary crushing).
  • the bigger is usually mounted on a general-purpose hydraulic excavator and used, but it can be changed to any lifting device that can operate hydraulically. In Bigger, it is normal to insert about half of the rock in the first time, insert about 3/4 of the rock in the second time, and insert as much as possible in the third time to break the rock. When the hydraulic bigger device is used, the drilling time and rock breaking time are remarkably shortened. It is considered that the rock splitting action from the adjacent holes cooperates to exert a synergistic effect (comparison target of FIGS. 7 and 8 and 9). Finally, along the cracks primary crushed by Bigger, secondary crushing is sequentially performed by a large breaker, a ripper or the like.
  • FIG. 5 is a perspective view of a specific example of the multiple hydraulic bigger breaking rock device according to the present invention, in which a pair of HBR-1000 biggers 30 and 30 are placed at the tip of an operation arm 11 of a large hydraulic excavator 10 via a horizontal hanger 20. Shows a well-balanced suspended state.
  • a pair of biggers 30 and 30 are attached to the tip of the hydraulic operation arm 11 of the hydraulic excavator 10, and the wedge liner 31 of the bigger is simultaneously inserted at a predetermined position of the bedrock by a drilling machine such as a crawler drill. It is inserted into a perforation of a predetermined depth formed in.
  • the operation of the operation arm 11 of the hydraulic excavator 10 is guided to the adjacent drilling by an assistant (not shown) grasping the operation handle 32 attached to the body of the bigger 30. Then, the wedge liner in the perforation is expanded by pushing the wedge under hydraulic pressure to generate cracks (primary crushing) around the perforation.
  • the horizontal hanger 20 is swingably attached to the tip of the operation arm 1 of the hydraulic excavator 10.
  • the horizontal hanger 20 is composed of a pair of wing portions 21a and 21a, and the wing portions have a plurality of mounting holes 21b extending at both ends at intervals of 100 mm from the center.
  • the pair of biggers 30 and 30 are hung and attached via the swivel 22 while being balanced equidistant to the left and right from the hanging center 21 of the horizontal hanger via the bolt-tightened attachment 21c.
  • the center of the horizontal hanger 20 is attached to the tip of the operating arm of the hydraulic excavator 10 via the arm attachment 23, but the center of the arm attachment 23 and the horizontal hanger 20 is supported by a twist reducing lever 24 having a bent portion 24a. Will be done.
  • the middle abdomen of the biggers 30 and 30 is held at a predetermined interval by the collision prevention lever 40. Therefore, the pair of Biggers 30 and 30 can relatively easily insert the respective wedge liners 31 into the adjacent Bigger holes without being greatly twisted.
  • the wedge liners in the adjacent Bigger holes are simultaneously controlled to be pushed vertically with respect to the free surface of the bedrock.
  • the plurality of biggers 30 and 30 are suspended from the operation arm 11 of the hydraulic excavator via the horizontal hanger 20 in a well-balanced manner, while the horizontal hanger 20 is suspended from the operation arm via the connector 24 while preventing twisting. Therefore, if the assistant holds and assists the operation handle 32 of the bigger 30, the tip of the wedge liner 31 can be inserted into the bigger hole at the entrance of the predetermined bigger hole by the operation of the hydraulic excavator.
  • the pair of biggers 30 and 30 are rotatably suspended around the bigger axis with respect to the horizontal hanger 20 via the swivel 22, the pair of biggers 30 and 30 push the wedge liner in the spreading direction with respect to the free end face.
  • the directions are set to be vertical and spread parallel to each other. Therefore, the wedge liner 31 is adjusted so that the cracks cooperate with each other in the adjacent Bigger holes. Therefore, a plurality of biggers 30 and 30 are used at the same time, and the wedge liners 31 and 31 in the adjacent perforations provided parallel to the bigger free surface (slit) are simultaneously expanded to generate cracks between the adjacent perforations. It is possible to obtain more than double the construction efficiency.
  • the rock breaking capacity test (a) was performed in the first stage and the construction capacity test (b) was performed in the second stage.
  • the cracking capacity test (a) drilling was performed at 0.7m, 1.0m and 1.5m pitches in the crawler drill drilling (preceding drilling), and then in the cracking capacity test, the state of cracks at each pitch was confirmed. At the same time, the width of the crack was confirmed, and it was confirmed whether the crack was connected to the adjacent hole. Then, the debris was removed and the depth of the split rock was finally confirmed.
  • "area measurement" is first performed.
  • the approximate quantity of the split rock target quantity (m3) is grasped (10m ⁇ 3.0m ⁇ 30m3).
  • "drilling time measurement” is performed. Perform the required drilling in the area and measure the drilling completion time.
  • the drilling completion area is broken and the breaking rock completion time is measured.
  • the crushed quantity of the degree of rock crushing removal is confirmed.
  • FIG. 8 shows the results when the Super Bigger HRB-1700 is used
  • FIGS. 9 and 10 show the results when the multiple hydraulic bigger HRB-1000 ⁇ 2 according to the present invention is used.
  • the construction ability and construction cost of both were compared by conducting the construction ability test with the following contents.
  • Drilling time measurement The time required to drill a hole in the construction range determined by the drilling interval was measured, which was commensurate with the rock splitting capacity confirmed in the previous process.
  • Breaking rock time measurement After the drilling was completed, the time required to crack the rock at all drilling points was measured with a rock breaking machine.
  • the hydraulic type is taken as an example of the rock breaking machine, but it may be driven by compressed air or electricity.
  • the wedge-shaped expander is used as a wedge, and if the gist is to use two or more wedge liners at the same time, the wedge liner is not limited to the Bigger HRB.
  • a construction method for example, a method of filling a highly viscous fluid that prevents the sedimentation of crushed rock for a predetermined time can be adopted without deviating from the gist of the present invention.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)
PCT/JP2020/032151 2020-08-26 2020-08-26 多連式油圧ビッガー割岩装置 WO2022044153A1 (ja)

Priority Applications (2)

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PCT/JP2020/032151 WO2022044153A1 (ja) 2020-08-26 2020-08-26 多連式油圧ビッガー割岩装置
JP2021571960A JP7176138B2 (ja) 2020-08-26 2020-08-26 多連式油圧ビッガー割岩装置

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6095096A (ja) * 1983-10-28 1985-05-28 古河機械金属株式会社 ベンチカツト工法におけるさく孔方式
JPS61242262A (ja) * 1985-04-16 1986-10-28 三菱重工業株式会社 構造物の表層剥離方法
JPS635092U (enrdf_load_stackoverflow) * 1986-06-27 1988-01-13
JP2007083177A (ja) * 2005-09-22 2007-04-05 High Frequency Heattreat Co Ltd 破砕方法および破砕具
KR20160067649A (ko) * 2014-12-04 2016-06-14 박재현 시공 기간 단축을 위한 무진동 할암 방식 터널시공방법
JP2018193678A (ja) * 2017-05-12 2018-12-06 株式会社増岡組 トンネル掘削方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6095096A (ja) * 1983-10-28 1985-05-28 古河機械金属株式会社 ベンチカツト工法におけるさく孔方式
JPS61242262A (ja) * 1985-04-16 1986-10-28 三菱重工業株式会社 構造物の表層剥離方法
JPS635092U (enrdf_load_stackoverflow) * 1986-06-27 1988-01-13
JP2007083177A (ja) * 2005-09-22 2007-04-05 High Frequency Heattreat Co Ltd 破砕方法および破砕具
KR20160067649A (ko) * 2014-12-04 2016-06-14 박재현 시공 기간 단축을 위한 무진동 할암 방식 터널시공방법
JP2018193678A (ja) * 2017-05-12 2018-12-06 株式会社増岡組 トンネル掘削方法

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JPWO2022044153A1 (enrdf_load_stackoverflow) 2022-03-03

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