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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
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.
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公开(公告)号：US11434558B2
公开(公告)日：2022-09-06
申请号：US15733046
申请日：2018-05-23
申请人： Manchao He , Min Xia
发明人： Manchao He , Min Xia , Hongyan Guo , Jiuping Wang
摘要： An NPR non-magnetic steel material for rock bolt and a production method thereof are disclosed. The NPR non-magnetic steel material for rock bolt has a composition, in weight percent, consisting of: C: 0.4-0.7%, MN: 15-20%, Cr: 1-18%, Si: 0.3-3%, Ca: 0.05-0.15%, Cu: ≤0.03%, Ni: ≤0.02%, S: ≤0.001%, P: ≤0.001%, and the rest being Fe and unavoidable impurity elements. The NPR non-magnetic steel material for rock bolt and the production method thereof effectively solve the problems of steel materials for rock bolt in the prior art such as strong magnetism, low tensile strength and low effective elongation. The NPR non-magnetic steel material for rock bolt has a fully-austenitized structure and is non-magnetic, its yield strength is adjustable in the range of 600-1000 MPa, and its elongation is adjustable in the range of 20-60%.
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公开(公告)号：US20210062311A1
公开(公告)日：2021-03-04
申请号：US15733052
申请日：2018-05-23
申请人： Manchao HE , Min XIA
发明人： Manchao HE , Min XIA , Hongyan GUO , Jiuping WANG
摘要： An NPR steel material for rock bolt and a production method thereof are disclosed. The NPR steel material for rock bolt has a composition, in weight percent, consisting of: C: 0.4-0.7%, Mn: 15-20%, Si: ≤0.1%, Cu: ≤0.03%, Cr: ≤0.01%, Ni: ≤0.02%, S: ≤0.001%, P: ≤0.001%, and the rest being Fe and unavoidable impurity elements. The NPR steel material for rock bolt and the production method thereof effectively solve the problem that rock bolts in the prior art have low tensile strength and low effective elongation. The NPR steel material for rock bolt has a yield strength adjustable in the range of 500-1100 MPa, and an elongation adjustable in the range of 10-80%.
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公开(公告)号：US20180195387A1
公开(公告)日：2018-07-12
申请号：US15739338
申请日：2016-06-24
申请人： Manchao HE
发明人： Manchao HE
摘要： A longwall 110 mining method, wherein a haulage dip, an air-return dip and a track dip are provided, a plurality of working faces are arranged in a whole panel, both an upper gateroad and a lower gateroad of each mining face in mining are connected to the haulage dip, and the lower gateroad that retains an entry after the working face is mined is used as an upper gateroad of a next working face, and the lower gateroad of the next working face is connected to the air-return dip. The upper gateroad and the lower gateroad of each working face in mining of the present disclosure are connected to the haulage dip, and the lower gateroad of the working face is connected to the air-return dip.
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5.发明授权公开(公告)号：US09488049B2
公开(公告)日：2016-11-08
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
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. The meter further includes: a rotation device for controlling the rotation angle of the hollow jack; a lifter for adjusting the height of the hollow jack and the rotation device; a first hydraulic pump for driving the hollow jack, wherein the hollow jack 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。 该仪表还包括：用于控制中空千斤顶的旋转角度的旋转装置; 用于调节中空千斤顶和旋转装置的高度的升降器; 用于驱动中空千斤顶的第一液压泵，其中中空千斤顶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。
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公开(公告)号：US09404821B2
公开(公告)日：2016-08-02
申请号：US14388959
申请日：2012-03-31
申请人： Manchao He , Xiaojie Yang , Yi Zhang
发明人： Manchao He , Xiaojie Yang , Yi Zhang
CPC分类号： G01L5/08 , G01M5/0058 , G01N3/08 , G01N3/10 , G01N2203/028
摘要： A large deformation tensile testing system, for use in testing a large deformation tensile of an anchor rod or an anchor rode, comprising a main machine frame (1), a rear collet component (2) arranged at a first position on the longitudinal direction of the main machine frame (1), a front collet component (3) movably arranged at a second position on the longitudinal direction of the main machine frame (1), a telescoping apparatus (4), a measurement and control apparatus, where a sensor module thereof senses the displacement and real-time tensile of the telescoping apparatus to form real-time data to be transmitted to an analysis module and a control module, the control module that controls, on the basis of a set measurement and control scheme and of an input of the sensor module, a testing process to proceed according to a set testing condition, the analysis module for analyzing the input of the sensor module to form a test result, and an output module for outputting same. The large deformation tensile testing system is capable of deriving a statics parameter of the anchor rod or anchor rode being tested.
摘要翻译： 一种用于测试锚杆或锚杆的大变形拉伸的大型变形拉伸试验系统，包括主机架（1），后夹头部件（2），其设置在纵向上的第一位置 主机架（1），可移动地布置在主机架（1）的纵向方向上的第二位置的前夹头部件（3），伸缩装置（4），测量和控制装置，其中传感器 其模块感测伸缩装置的位移和实时拉伸，以形成要发送到分析模块和控制模块的实时数据，控制模块基于设定的测量和控制方案以及控制模块 传感器模块的输入，根据设定的测试条件进行的测试过程，用于分析传感器模块的输入以形成测试结果的分析模块，以及用于输出测试结果的输出模块。 大变形拉伸试验系统能够得出待测锚杆或锚杆的静力学参数。
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公开(公告)号：US08974151B2
公开(公告)日：2015-03-10
申请号：US13710220
申请日：2012-12-10
申请人： Manchao He
发明人： Manchao He
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。
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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
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.
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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
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.
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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
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。
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