JPS6095098A - 岩盤破砕用ポリウレタン構造体 - Google Patents

岩盤破砕用ポリウレタン構造体

Info

Publication number
JPS6095098A
JPS6095098A JP20223483A JP20223483A JPS6095098A JP S6095098 A JPS6095098 A JP S6095098A JP 20223483 A JP20223483 A JP 20223483A JP 20223483 A JP20223483 A JP 20223483A JP S6095098 A JPS6095098 A JP S6095098A
Authority
JP
Japan
Prior art keywords
crushing
cylindrical unit
polyurethane structure
unit molded
rock
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP20223483A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6319678B2 (enrdf_load_stackoverflow
Inventor
八木 賢二
松井 正州
服部 鋭一
鎌苅 龍太郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kajima Corp
Toyo Tire Corp
Original Assignee
Kajima Corp
Toyo Tire and Rubber Co Ltd
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 Kajima Corp, Toyo Tire and Rubber Co Ltd filed Critical Kajima Corp
Priority to JP20223483A priority Critical patent/JPS6095098A/ja
Publication of JPS6095098A publication Critical patent/JPS6095098A/ja
Publication of JPS6319678B2 publication Critical patent/JPS6319678B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Disintegrating Or Milling (AREA)
JP20223483A 1983-10-27 1983-10-27 岩盤破砕用ポリウレタン構造体 Granted JPS6095098A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20223483A JPS6095098A (ja) 1983-10-27 1983-10-27 岩盤破砕用ポリウレタン構造体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20223483A JPS6095098A (ja) 1983-10-27 1983-10-27 岩盤破砕用ポリウレタン構造体

Publications (2)

Publication Number Publication Date
JPS6095098A true JPS6095098A (ja) 1985-05-28
JPS6319678B2 JPS6319678B2 (enrdf_load_stackoverflow) 1988-04-23

Family

ID=16454175

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20223483A Granted JPS6095098A (ja) 1983-10-27 1983-10-27 岩盤破砕用ポリウレタン構造体

Country Status (1)

Country Link
JP (1) JPS6095098A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6216192U (enrdf_load_stackoverflow) * 1985-07-16 1987-01-30
JPS62159507U (enrdf_load_stackoverflow) * 1986-03-26 1987-10-09
JP2007175608A (ja) * 2005-12-27 2007-07-12 High Frequency Heattreat Co Ltd 破砕方法および破砕具
KR20210021741A (ko) * 2019-08-19 2021-03-02 송종섭 마찰력이 감소된 분할쐐기가 구비된 바위균열용 헤드

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6216192U (enrdf_load_stackoverflow) * 1985-07-16 1987-01-30
JPS62159507U (enrdf_load_stackoverflow) * 1986-03-26 1987-10-09
JP2007175608A (ja) * 2005-12-27 2007-07-12 High Frequency Heattreat Co Ltd 破砕方法および破砕具
KR20210021741A (ko) * 2019-08-19 2021-03-02 송종섭 마찰력이 감소된 분할쐐기가 구비된 바위균열용 헤드

Also Published As

Publication number Publication date
JPS6319678B2 (enrdf_load_stackoverflow) 1988-04-23

Similar Documents

Publication Publication Date Title
KR100888585B1 (ko) 다단 가압식 그라우팅장치 및 이를 이용한 다단 가압식그라우팅공법
US8561689B2 (en) Swellable downhole apparatus and support assembly
CA2927672C (en) Plug for well drilling provided with ring-shaped ratchet structure
US6435777B1 (en) Method of arranging reinforcement in forming foundation of ground reinforcing type and foundation body
US5143484A (en) Mine cribbing device and method
WO2018036224A1 (zh) 两端为硬质密封环的胶筒、封隔器和桥塞
WO2014208527A1 (ja) ダウンホールツール用ゴム部材、及びダウンホールツール、並びに炭化水素資源の回収方法
JPS6095098A (ja) 岩盤破砕用ポリウレタン構造体
CN103821127A (zh) 一种端部滑移式高压大旁胀量的旁压仪新型探头
CN113585250B (zh) 一种可回收型气囊触发式土钉结构
CN116641374A (zh) 一种气囊式可回收锚杆
KR100778608B1 (ko) 이중관을 이용한 가압식 네일링 장치 및 방법
CN220890214U (zh) 一种大变形隧洞自调节钢管混凝土拱架让压装置
CN109026137A (zh) 一种煤矿井道底部防护缓冲设备及方法
CN116291299A (zh) 一种可快速回弹压缩式油缸封隔器及封隔器封孔方法
CA3094937C (en) Downhole plug with protective member
JPS6095099A (ja) 岩盤破砕用ポリウレタン構造体
CN215169800U (zh) 一种用于施工斜桩的钻杆
JP3896668B2 (ja) 免震構造体
CN218324912U (zh) 多机制吸能防冲锚杆
CN220238756U (zh) 一种衬板固定结构
CN213627622U (zh) 一种组装式防冲击锚杆
JPH0251035B2 (enrdf_load_stackoverflow)
CN217974344U (zh) 一种phc管桩孔口气囊封堵改良结构
JPS61117397A (ja) 岩盤破砕方法およびその破砕装置