公开(公告)号：US10677055B2

公开(公告)日：2020-06-09

申请号：US15739173

申请日：2016-06-24

申请人： Manchao He

发明人： Manchao He ,  Zhibiao Guo

IPC分类号： E21C41/18 ,  E21D9/00 ,  E21D20/00 ,  E21D11/00 ,  E21D15/00 ,  E21D21/00

摘要： A fractured roof 110 mining method entry-side anti-collapsed structure, one working face of the 110 mining method corresponds to one roadway but without retaining any coal pillar, the roadway retains an entry after the previous working face implements mining top-cutting pressure release, and a roof of the roadway is arch-shape, directional cutting is conducted on one side of the roadway, and the cutting angle is between 15-20 degrees. One working face corresponds to one roadway but without retaining any coal pillar when underground mining is conducted, which can save resources and improve recovery rate of mining. And, the roof of the roadway of the retained entry is arch-shaped, which can improve safety and ensure safety of the coal mining working face. In addition, a cutting angle is 15-20 degrees, which can effectively determine a roof caving direction after top-cutting and reduce affect to the retained entry.

公开(公告)号：US20180187547A1

公开(公告)日：2018-07-05

申请号：US15739426

申请日：2016-06-24

申请人： Manchao HE

发明人： Manchao HE

IPC分类号： E21C41/18 ,  E21F1/00 ,  E21D23/00

CPC分类号： E21C41/18 ,  E21C41/16 ,  E21D19/02 ,  E21D23/0034 ,  E21D23/0463 ,  E21F1/00 ,  E21F1/006

摘要： A longwall N00 mining method includes performing a no-entry excavation and non-pillar mining in N working faces of a new district, and the whole district is provided with an air-return dip, a haulage dip and a track dip, wherein the air-return dip and the track dip are located on one end of the district, and the haulage dip is connected to the other end of the district, and connected to the air-return dip. This method can not only ensure ventilation of the whole coal cutting are, but also when mining is performed in each working face in the district, entries can be automatically formed due to top-cutting pressure release by using a part of a gob area, and thereby it is not required to separately excavate any gateroad entry during mining coal nor need to retain any coal pillar, so as to save resources and improve efficiency.

公开(公告)号：US20150068319A1

公开(公告)日：2015-03-12

申请号：US14389318

申请日：2012-03-31

申请人： Manchao He ,  Xiaoming Sun ,  Xiaojie Yang

发明人： Manchao He ,  Xiaoming Sun ,  Xiaojie Yang

IPC分类号： G01N3/02 ,  G01N3/06 ,  G01N3/30

CPC分类号： G01N3/02 ,  G01N3/068 ,  G01N3/30 ,  G01N3/313 ,  G01N24/081

摘要： An experimental method for simulating an impact rock-burst, comprises the following steps: making a rock sample having a through hole or a half hole; loading initial static stresses of three directions onto the rock sample; then loading dynamic load(s) by 0.5-10 minutes, to determine whether a spalling phenomenon appears on an internal surface of the hole; if appears, and the rock sample is further damaged, determining and recording a failure course, if not appears, increasing the static stress(es) or the intensity of the dynamic load, then repeating the experiment procedure as far as rock sample goes into the failure course, then determining and recording the failure course, and ending the expierment. The impact rockburst induced by dynamic load is simulated on the rock sample successfully, and by studying mechanical mechanisms of the rock-burst, the present application lays foundations for gradually understanding and mastering the nature of real rock burst.

摘要翻译： 用于模拟撞击岩爆的实验方法包括以下步骤：制备具有通孔或半孔的岩石样品; 将三个方向的初始静应力加载到岩石样品上; 然后加载0.5-10分钟的动态载荷，以确定孔的内表面是否出现剥落现象; 如果出现，并且岩石样品进一步损坏，确定和记录故障过程，如果不出现，增加静态应力或动态载荷的强度，然后重复实验程序，只要岩石样品进入 失败课程，然后确定和记录失败课程，并结束expirement。 动态载荷引起的冲击岩爆成功地模拟了岩样，通过研究岩爆机械机理，本研究为逐步认识和掌握真实岩爆的性质奠定了基础。

公开(公告)号：US20220314291A1

公开(公告)日：2022-10-06

申请号：US17640223

申请日：2020-09-28

申请人： Manchao HE ,  Min XIA

发明人： Manchao HE ,  Min XIA ,  Hongyan GUO ,  Hongchao LI

IPC分类号： B21C37/04 ,  B21F45/00

摘要： A processing method of NPR steel rebar coil is disclosed. The NPR steel rebar is cold processed and has a diameter of less than 14 mm, and has a yield strength of 800˜950 MPa, a tensile strength of 900˜1100 MPa, and a elongation of not less than 20%. The processing method comprises: a I-shaped placing step L20, an uncoiling step L30, a flattening step L40, a pointing step L50, a butt welding step L60, a hydraulic head-pushing step L70, a cold drawn smoothing step L80, a grit blasting step L90, an in-situ inline annealing step L10, an air-cooled tempering step L11, a coiling step L12, a placing step L13, a flattening step L14, a cold drawn spiral ribbing step L15, a straightening step L16, and a coiling step L17. The method can achieve full intelligence, meet the processing requirements and the automatic intelligent production requirements of NPR steel rebar coil.

公开(公告)号：US20180202291A1

公开(公告)日：2018-07-19

申请号：US15739173

申请日：2016-06-24

申请人： Manchao HE

发明人： Manchao HE ,  Zhibiao GUO

IPC分类号： E21D11/00 ,  E21D21/00 ,  E21C41/18 ,  E21D15/00

摘要： A fractured roof 110 mining method entry-side anti-collapsed structure, one working face of the 110 mining method corresponds to one roadway but without retaining any coal pillar, the roadway retains an entry after the previous working face implements mining top-cutting pressure release, and a roof of the roadway is arch-shape, directional cutting is conducted on one side of the roadway, and the cutting angle is between 15-20 degrees. One working face corresponds to one roadway but without retaining any coal pillar when underground mining is conducted, which can save resources and improve recovery rate of mining. And, the roof of the roadway of the retained entry is arch-shaped, which can improve safety and ensure safety of the coal mining working face. In addition, a cutting angle is 15-20 degrees, which can effectively determine a roof caving direction after top-cutting and reduce affect to the retained entry.

公开(公告)号：US20140318263A1

公开(公告)日：2014-10-30

申请号：US14126262

申请日：2011-06-13

申请人： Manchao He ,  Zhibiao Guo ,  Jiong Wang ,  Jun Yang ,  Xiaoming Sun

发明人： Manchao He ,  Zhibiao Guo ,  Jiong Wang ,  Jun Yang ,  Xiaoming Sun

IPC分类号： E21D21/02 ,  G01L5/00

CPC分类号： E21D21/02 ,  G01L5/0038 ,  G01L5/0061

摘要： A tension meter of an anchor rod with constant resistance and large deformation comprises a pull rod and a hollow jack (13). The meter further includes: a rotation device for controlling the rotation angle of the hollow jack (3); a lifter for adjusting the height of the hollow jack (13) and the rotation device; a first hydraulic pump (1) for driving the hollow jack (13), wherein the hollow jack (13) is fixed on the rotation device mounted on the lifter. The meter has a large measurement range and a high load capacity.

摘要翻译： 具有恒定阻力和大变形的锚杆的张力计包括拉杆和中空千斤顶（13）。 该仪表还包括：用于控制中空千斤顶（3）的旋转角度的旋转装置; 用于调节中空千斤顶（13）和旋转装置的高度的升降机; 用于驱动中空千斤顶（13）的第一液压泵（1），其中中空千斤顶（13）固定在安装在升降机上的旋转装置上。 仪表具有较大的测量范围和高负载能力。

公开(公告)号：US20130115013A1

公开(公告)日：2013-05-09

申请号：US13710220

申请日：2012-12-10

申请人： Manchao He

发明人： Manchao He

IPC分类号： E21D21/00

CPC分类号： E21D21/0033 ,  E02D5/74 ,  E02D5/80 ,  E02D5/805 ,  E21D21/00 ,  E21D21/008

摘要： A constant-resistance large-deformation anchor rod includes a rod body (6), a tray (3), a nut (2), and a constant-resistance device (4). The constant-resistance device (4) is formed into a cylindrical structure, and the inner surface of the constant-resistance device (4) and the outer surface of the rod body (6) are both formed with thread structures. The constant-resistance device (4) is sleeved at the tail of the rod body (6), and the tray (3) and the nut (2) are sequentially sleeved at the tail of the constant-resistance device (4). The nut (2) is in threaded connection with the constant-resistance device (4). The constant-resistance large-deformation anchor rod in the invention can be automatically stretched when the tunnel surrounding rock deforms largely, and keep the constant working resistance.

摘要翻译： 恒定电阻大变形锚杆包括杆体（6），托盘（3），螺母（2）和恒定电阻装置（4）。 恒定电阻装置（4）形成圆柱形结构，并且恒定电阻装置（4）的内表面和杆体（6）的外表面均形成有螺纹结构。 恒定电阻装置（4）套在杆体（6）的尾部，托盘（3）和螺母（2）依次套在恒定电阻装置（4）的尾部。 螺母（2）与恒定电阻装置（4）螺纹连接。 当隧道围岩变形较大时，本发明的恒电阻大变形锚杆可以自动拉伸，保持恒定的工作阻力。

公开(公告)号：US20120118041A1

公开(公告)日：2012-05-17

申请号：US13386050

申请日：2010-07-15

申请人： Manchao He ,  Chunguang Wang ,  Haijiang Zhang ,  Dejian Li

发明人： Manchao He ,  Chunguang Wang ,  Haijiang Zhang ,  Dejian Li

IPC分类号： G01N30/02 ,  G01N7/00

CPC分类号： G01N7/14 ,  G01N7/16 ,  G01N2015/0866

摘要： A system and method for testing gas migration process in the coal and rock mass are disclosed. The method includes the following steps: selecting a cylindrical coal sample, applying an axial pressure and a radial pressure to the coal sample under a sealing state, and/or increasing temperature, to desorb gas absorbed by the coal sample; guiding the gas desorbed from the coal sample by a guiding passage, detecting gas flow rate and pressure, analyzing gas composition and content, and achieving a data statistics. The method provides a theory and data basis for researching the forming and occurring process of gas outburst accident in coal mine. The system is simple and easy to use, and is suitable for migration research of the gas absorbed in the deep coal-rock mass.

摘要翻译： 公开了一种用于测试煤和岩体中气体迁移过程的系统和方法。 该方法包括以下步骤：选择圆柱形煤样，在密封状态和/或升高温度下向煤样施加轴向压力和径向压力，以解吸煤样吸收的气体; 通过引导通道引导从煤样中解吸的气体，检测气体流量和压力，分析气体组成和含量，并实现数据统计。 该方法为煤矿瓦斯突出事故形成和发生过程的研究提供了理论和数据依据。 该系统简单易用，适用于深层煤岩吸收气体的迁移研究。

公开(公告)号：US11679429B2

公开(公告)日：2023-06-20

申请号：US17640223

申请日：2020-09-28

申请人： Manchao He ,  Min Xia

发明人： Manchao He ,  Min Xia ,  Hongyan Guo ,  Hongchao Li

IPC分类号： B21C37/04 ,  B21F45/00

CPC分类号： B21C37/045 ,  B21F45/006

摘要： A processing method of NPR steel rebar coil is disclosed. The NPR steel rebar is cold processed and has a diameter of less than 14 mm, and has a yield strength of 800˜950 MPa, a tensile strength of 900˜1100 MPa, and a elongation of not less than 20%. The processing method comprises: an I-shaped placing step L20, an uncoiling step L30, a flattening step L40, a pointing step L50, a butt welding step L60, a hydraulic head-pushing step L70, a cold drawn smoothing step L80, a grit blasting step L90, an in-situ inline annealing step L10, an air-cooled tempering step L11, a coiling step L12, a placing step L13, a flattening step L14, a cold drawn spiral ribbing step L15, a straightening step L16, and a coiling step L17. The method can achieve full intelligence, meet the processing requirements and the automatic intelligent production requirements of NPR steel rebar coil.

公开(公告)号：US11596991B2

公开(公告)日：2023-03-07

申请号：US17634181

申请日：2020-09-28

申请人： Manchao He ,  Min Xia

发明人： Manchao He ,  Min Xia ,  Hongyan Guo ,  Hongchao Li

IPC分类号： B21C1/00 ,  B23K31/02

摘要： A processing method of NPR steel rebar rod is disclosed. The NPR steel rebar is cold processed and has a yield strength of 800˜950 MPa, a tensile strength of 900˜1100 MPa, and a percentage elongation at maximum force of not less than 10˜40%. The processing method comprises the following steps: a I-shaped placing step L20, an uncoiling step L30, a flattening step L40, a butt welding step L50, a sandblasting step L60, a straightening step L70, a pointing step L80, a hydraulic head-pushing step L90, a cold drawn spiral ribbing step L10, a straight forward continuous wire drawing and traction step L11, a pre-straightening step L12, a fine straightening step L13, and a cutting-off step L14. The processing method can meet the automatic intelligent production requirements of NPR steel rebar, cold rolled spiral NPR steel rebar, and pre-stressed NPR steel rebar.