WO2018014477A1 - 一种基于实测的充填材料力学特性曲线修正方法 - Google Patents

一种基于实测的充填材料力学特性曲线修正方法 Download PDF

Info

Publication number
WO2018014477A1
WO2018014477A1 PCT/CN2016/106613 CN2016106613W WO2018014477A1 WO 2018014477 A1 WO2018014477 A1 WO 2018014477A1 CN 2016106613 W CN2016106613 W CN 2016106613W WO 2018014477 A1 WO2018014477 A1 WO 2018014477A1
Authority
WO
WIPO (PCT)
Prior art keywords
curve
stress
strain
test
relationship
Prior art date
Application number
PCT/CN2016/106613
Other languages
English (en)
French (fr)
Inventor
张强
张吉雄
闫浩
邰阳
乔明
Original Assignee
中国矿业大学
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 中国矿业大学 filed Critical 中国矿业大学
Publication of WO2018014477A1 publication Critical patent/WO2018014477A1/zh

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12Pressure testing

Definitions

  • the invention relates to a method for modifying a mechanical property curve of a filling material, in particular to a method for correcting a mechanical property curve of a filling material based on actual measurement.
  • Filling material is the key factor to ensure the control effect of rock stratum in filling coal mining technology. Its mechanical properties directly determine the movement state of overlying strata. The stress and strain curves, bulk density and elastic foundation coefficient curves of mechanical properties of filling materials are filled and taken. The basis of coal overburden motion control and engineering design is as follows: the charge-to-production mass ratio and the full-charge rate theoretical control index are determined by the relationship between stress and strain; the number of compaction times and the strength of the concrete are determined by the density-weight and elastic foundation coefficient curves. However, the mechanical properties of filling materials obtained through laboratory tests are different from those in the field.
  • the object of the present invention is to provide a simple, reliable and accurate method for correcting the mechanical property curve of a filling material, so that the experimental test curve of the mechanical properties of the filling material is as close as possible to the measured value of the field, while maintaining the basic change trend, for filling the coal mining Rock motion control and engineering design provide theoretical basis.
  • the object of the present invention is achieved as follows:
  • the method and the process for correcting the mechanical property curve of the filling material based on the actual measurement are as follows:
  • the laboratory test curve for drawing the mechanical properties of the filling material in the step A is as follows:
  • the strain ⁇ e is determined: the original filling height of the filling body sample is set to h 0 , and in the process of axial compression, the compressive deformation amount is defined as ⁇ h, then the strain ⁇ e of the sample is:
  • the elastic foundation coefficient of the filling body increases linearly with depth, that is, the elastic foundation coefficient k ge of the filling body is determined by the formula (3):
  • the curve fit form of the relationship is set to: Where k g is the elastic foundation coefficient of the filling body tested in the laboratory; or the fitting curve of the relationship between stress and strain, bulk density and elastic foundation coefficient satisfies the determination coefficient R 2 >0.9, and the coefficient of determination is the correlation coefficient of the fitting curve The square of R.
  • step C inversely calculating the strain of the filling body according to the ratio of the sinking value of the displacement of the top plate to the original mining height, measuring the displacement of the roof displacement ⁇ d, setting the original mining height of the coal seam to d o , then filling the body
  • the stress of the filling body is dynamically monitored according to the filling body stress monitor.
  • the placement position and number of the filling body stress monitor are consistent with the dynamic monitoring of the top plate to ensure filling.
  • the body stress monitoring is carried out simultaneously with the dynamic monitoring of the roof, so that the measured stress and strain curves are obtained.
  • the relationship between the measured bulk density and the elastic foundation coefficient is obtained.
  • the size distribution of the filling body is determined; other fitting curves of the mechanical properties satisfying the requirement of the determination coefficient R 2 >0.9 can be modified similarly by the method of modifying the characteristic parameters in the relational expression.
  • the present invention first uses the laboratory steel drum compaction test data to draw a test curve of the mechanical properties of the filling material, and uses the Excel, Origin, Matlab, etc. to fit the numerical relationship of the mechanical properties of the filling material. Then, using the monitoring equipment to dynamically monitor the relationship between the stress and strain of the filling body during the working face mining process, and draw the mechanical properties of the tested and measured filling materials in the same coordinate system, and finally pass the comparison test and the measured curve. Taking the measured curve as the target, the method of correcting the main parameters in the relationship is used to correct the test curve, and the correction method based on the measured mechanical properties of the filling material is quantitatively given.
  • the design provides a theoretical basis for the engineering parameters such as the mass-to-production ratio, the enrichment rate, the number of times of compaction, and the strength of the crucible.
  • the correction method is simple and easy, high in accuracy, and has wide practicality.
  • Figure 1 shows the correction of the stress and strain test curves of the filling body.
  • Figure 2 is a modification of the test curve for the bulk density and elastic foundation coefficient of the filling body.
  • the method and process for correcting the mechanical property curve of the filling material are as follows:
  • the laboratory test curve for drawing the mechanical properties of the filling material in the step A is as follows:
  • the strain ⁇ e is determined: the original filling height of the filling body sample is set to h 0 , and in the process of axial compression, the compressive deformation amount is defined as ⁇ h, then the strain ⁇ e of the sample is:
  • the elastic foundation coefficient of the filling body increases linearly with depth, that is, the elastic foundation coefficient k ge of the filling body is determined by the formula (3):
  • the curve fit form of the relationship is set to: Where k g is the elastic foundation coefficient of the filling body tested in the laboratory; or the fitting curve of the relationship between stress and strain, bulk density and elastic foundation coefficient satisfies the determination coefficient R 2 >0.9, and the coefficient of determination is the correlation coefficient of the fitting curve The square of R.
  • step C inversely calculating the strain of the filling body according to the ratio of the sinking value of the displacement of the top plate to the original mining height, measuring the displacement of the roof displacement ⁇ d, setting the original mining height of the coal seam to d o , then filling the body
  • the stress of the filling body is dynamically monitored according to the filling body stress monitor.
  • the placement position and number of the filling body stress monitor are consistent with the dynamic monitoring of the top plate to ensure filling.
  • the body stress monitoring is carried out simultaneously with the dynamic monitoring of the roof, so that the measured stress and strain curves are obtained.
  • the relationship between the measured bulk density and the elastic foundation coefficient is obtained.
  • the size distribution of the filling body is determined; other (such as logarithmic function, power function, etc.) the mechanical property fitting curve satisfying the determination coefficient R 2 >0.9 can be modified similarly by modifying the characteristic parameters in the relational expression.
  • Example 1 The 7203W filling working face of Yanzhen Mine uses vermiculite as the filling material, and the primary vermiculite is prepared from the ore below the diameter of 50mm and the uniaxial confining compression test is carried out, and the meteorite is fitted according to the experimental data.
  • the dynamics of the stress and strain of the filling body during the mining process of the working face are carried out by the dynamic monitoring instrument and the filling body stress monitor. Monitoring, the field measured curve is obtained; in the same coordinate system, the comparison test and the measured curve are taken as the target, and the test curve is corrected by correcting the main parameters in the fitting relationship.
  • the relationship between the bulk density of the vermiculite filling material and the elastic foundation coefficient is:
  • the relationship between the corrected bulk density and the elastic foundation coefficient is:

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

一种基于实测的充填材料力学特性曲线修正方法,步骤如下:A、基于实验室钢桶压实试验对充填材料进行单轴侧限压缩,绘制应力与应变、容重与弹性地基系数关系测试曲线;B、根据测试曲线的变化趋势,借助Excel、Origin、Matlab等数据处理软件,拟合应力与应变、容重与弹性地基系数关系表达式;C、对工作面回采过程中充填体的应力与应变关系进行现场动态监测,得到现场实测曲线;D、在同一坐标系下分别绘制测试及实测的充填材料力学特性曲线;E、对比测试与实测曲线,以实测曲线为目标,采用修正拟合关系式中特征参数的方法,对测试曲线进行修正。该方法为充采质量比、充实率、夯实次数、夯实力等工程参数合理优化设计提供了理论依据。

Description

一种基于实测的充填材料力学特性曲线修正方法 技术领域
本发明涉及一种充填材料力学特性曲线修正方法,特别是一种基于实测的充填材料力学特性曲线修正方法。
背景技术
充填材料作为充填采煤技术中岩层控制效果保证的关键因素,其力学特性直接决定上覆岩层的运动状态,充填材料力学特性包含的应力与应变关系曲线、容重与弹性地基系数曲线是进行充填采煤覆岩运动控制及工程设计的基础,具体表现为充采质量比、充实率理论控制指标由应力与应变关系曲线确定;夯实次数、夯实力等指标由容重与弹性地基系数曲线确定。然而,目前通过实验室试验得到的充填材料力学特性曲线与现场实测存在一定差别,这主要因为充填材料钢桶压实实验中钢桶对充填材料的约束条件及液压试验机加载条件与实际采场中边界条件及覆岩载荷差异较大,因此为了获得准确的充填材料力学特性曲线,需要对实验测试的应力与应变曲线及容重-弹性地基系数曲线进行修正。
发明内容
本发明的目的是提供一种简单、可靠、准确的充填材料力学特性曲线修正方法,使充填材料力学特性实验测试曲线尽可能接近现场实测值,同时维持其基本变化趋势,为进行充填采煤覆岩运动控制及工程设计提供理论依据。
本发明的目的是这样实现的:基于实测的充填材料力学特性曲线修正方法及流程按如下步骤:
A、基于实验室钢桶压实试验,对充填材料进行单轴侧限压缩,并根据试验数据绘制充填材料应力与应变、容重与弹性地基系数关系的测试曲线;
B、根据测试曲线的变化趋势,借助Excel、Origin、Matlab专业数据处理软件,拟合应力与应变、容重与弹性地基系数数值关系表达式;
C、利用顶板动态监测仪与充填体应力监测仪对采煤工作面回采过程中充填体的应力与应变关系进行现场动态监测,得到现场实测曲线;
D、在同一坐标系下分别绘制实验室测试及现场实测的应力与应变关系曲线、容重与弹性地基系数关系曲线,其中测试曲线以拟合关系式运算值替代;
E、对比实验室测试与现场实测曲线,以实测曲线为目标,采用修正拟合关系式中特征参数的方法,对测试曲线进行修正。
所述的步骤A中的绘制充填材料力学特性实验室测试曲线,具体步骤如下:
a、实验室试验:利用液压试验机对压实钢筒中的充填材料进行单轴侧限压缩,设计最大轴向压应力为20MPa,加载速率为2kN·s-1
b、确定各参数间关系:
应变量εe确定:设定充填体试样原始装料高度为h0,在轴向受压的过程中,定义其压缩变形量为Δh,则试样的应变量εe为:
Figure PCTCN2016106613-appb-000001
容重γh的确定:设定压实钢筒的半径为r0、原始装料质量为M0,则试样在压缩变形量为Δh时对应的容重γh为:
Figure PCTCN2016106613-appb-000002
弹性地基系数kge确定:定义充填体试样的变形模量为:Ee=σee,其中σe表示试样所受压实力,εe为试样的应变量,同时设定充填体弹性地基系数随深度变化呈线性增大的形式,即充填体的弹性地基系数kge由式(3)确定:
Figure PCTCN2016106613-appb-000003
由式(3)得到充填体的弹性地基系数kge与应力与应变的关系为:
Figure PCTCN2016106613-appb-000004
c、绘制测试曲线:基于实验室试验数据和各参数间关系,分别绘制出充填材料应力与应变、容重与弹性地基系数关系的两个测试曲线。
所述的步骤B中:应力与应变的曲线拟合形式设定为:ε=a+bln(σ+c),式中ε为实验室测试的充填材料的应变量;容重与弹性地基系数数值关系的曲线拟合形式设定为:
Figure PCTCN2016106613-appb-000005
式中kg为实验室测试的充填体的弹性地基系数;或应力与应变、容重与弹性地基系数数值关系的拟合曲线满足决定系数R2>0.9即可,决定系数为拟合曲线相关系数R的平方。
所述的步骤C中:根据顶板位移的下沉值与原始采高的比值反算充填体的应变,实测顶板位移下沉值为Δd,设定煤层原始采高为do,则充填体的实测应变量为εa=Δd/do;根据充填体应力监测仪动态监测充填体自身的应力变化,其中,充填体应力监测仪的布设位置和个数与顶板动态监测仪保持一致,确保充填体应力监测与顶板动态监测同时进行,从而得到实测应力与应变关系曲线,并在此基础上根据步骤A中各参数间关系,得到实测容重与弹性地基系数关系曲线。
所述的步骤E中:采用修正拟合关系式中特征参数的方法对测试曲线进行修正,包括:应力与应变的修正关系:ε=l1a+l2bln(σ+l3c),式中l1、l2、l3为修正系数;容重与弹性地基系数的修正关系:
Figure PCTCN2016106613-appb-000006
式中l4、l5为修正系数;修正系数l1、l2、l3、l4、l5的取值由压实试验加载应力、加载速率、曲线拟合形式、充填体的材料构成、充填体的粒径级配决定;其它满足决定系数R2>0.9要求的力学特性拟合曲线可类似采用修正关系式中特征参数的方法进行修正。
有益效果:由于采用了上述修正技术方案,本发明首先利用实验室钢桶压实试验数据绘制充填材料力学特性的测试曲线,并通过Excel、Origin、Matlab等拟合充填材料力学特性的数值关系表达式,然后利用监测设备对工作面回采过程中充填体的应力与应变关系进行现场动态监测,并在同一坐标系下分别绘制测试及实测的充填材料力学特性曲线,最后通过对比测试与实测曲线,以实测曲线为目标,采用修正拟合关系式中主要参数的方法,对测试曲线进行修正,定量的给出了基于实测的充填材料力学特性曲线修正方法,为获得准确的充填材料力学特性,优化设计充采质量比、充实率、夯实次数、夯实力等工程参数提供理论依据。其修正方法简单易行,准确性高,具有广泛的实用性。
附图说明
图1为充填体应力与应变测试曲线修正示意。
图2为充填体容重与弹性地基系数测试曲线修正示意。
具体实施方式
该充填材料力学特性曲线修正方法及流程按如下步骤:
A、基于实验室钢桶压实试验,对充填材料进行单轴侧限压缩,并根据试验数据绘制充填材料应力与应变、容重与弹性地基系数关系的测试曲线;
B、根据测试曲线的变化趋势,借助Excel、Origin、Matlab等专业数据处理软件,拟合应力与应变、容重与弹性地基系数数值关系表达式;
C、利用顶板动态监测仪与充填体应力监测仪对采煤工作面回采过程中充填体的应力与应变关系进行现场动态监测,得到现场实测曲线;
D、在同一坐标系下分别绘制实验室测试及现场实测的应力与应变关系曲线、容重与弹性地基系数关系曲线,其中测试曲线以拟合关系式运算值替代;
E、对比实验室测试与现场实测曲线,以实测曲线为目标,采用修正拟合关系式中特征参数的方法,对测试曲线进行修正。
所述的步骤A中的绘制充填材料力学特性实验室测试曲线,具体步骤如下:
a、实验室试验:利用液压试验机对压实钢筒中的充填材料进行单轴侧限压缩,设计最大轴向压应力为20MPa,加载速率为2kN·s-1
b、确定各参数间关系:
应变量εe确定:设定充填体试样原始装料高度为h0,在轴向受压的过程中,定义其压缩变形量为Δh,则试样的应变量εe为:
Figure PCTCN2016106613-appb-000007
容重γh的确定:设定压实钢筒的半径为r0、原始装料质量为M0,则试样在压缩变形量为Δh时对应的容重γh为:
Figure PCTCN2016106613-appb-000008
弹性地基系数kge确定:定义充填体试样的变形模量为:Ee=σee,其中σe表示试样所受压实力,εe为试样的应变量,同时设定充填体弹性地基系数随深度变化呈线性增大的形式,即充填体的弹性地基系数kge由式(3)确定:
Figure PCTCN2016106613-appb-000009
由式(3)得到充填体的弹性地基系数kge与应力与应变的关系为:
Figure PCTCN2016106613-appb-000010
c、绘制测试曲线:基于实验室试验数据和各参数间关系,分别绘制出充填材料应力与应变、容重与弹性地基系数关系的两个测试曲线。
所述的步骤B中:应力与应变的曲线拟合形式设定为:ε=a+bln(σ+c),式中ε为实验室测试的充填材料的应变量;容重与弹性地基系数数值关系的曲线拟合形式设定为:
Figure PCTCN2016106613-appb-000011
式中kg为实验室测试的充填体的弹性地基系数;或应力与应变、容重与弹性地基系数数值关系的拟合曲线满足决定系数R2>0.9即可,决定系数为拟合曲线相关系数R的平方。
所述的步骤C中:根据顶板位移的下沉值与原始采高的比值反算充填体的应变,实测顶板位移下沉值为Δd,设定煤层原始采高为do,则充填体的实测应变量为εa=Δd/do;根据充填体应力监测仪动态监测充填体自身的应力变化,其中,充填体应力监测仪的布设位置和个数与顶板动态监测仪保持一致,确保充填体应力监测与顶板动态监测同时进行,从而得到实测应力与应变关系曲线,并在此基础上根据步骤A中各参数间关系,得到实测容重与弹性地基系数关系曲线。
所述的步骤E中:采用修正拟合关系式中特征参数的方法对测试曲线进行修正,包括:应力与应变的修正关系:ε=l1a+l2bln(σ+l3c),式中l1、l2、l3为修正系数;容重与弹性地基系数的修正关系:
Figure PCTCN2016106613-appb-000012
式中l4、l5为修正系数;修正系数l1、l2、l3、l4、l5的取值由压实试验加载应力、加载速率、曲线拟合形式、充填体的材料构成、充填体的粒径级配决定;其它(如对数函数、幂函数等)满足决定系数R2>0.9要求的力学特性拟合曲线可类似采用修正关系式中特征参数的方法进行修正。
下面结合附图对本发明的一个实施例,对基于实测的充填材料力学特性曲线修正方法作进一步的描述:
实施例1:翟镇矿7203W充填工作面采用矸石作为充填材料,从矿上选取50mm以下粒径按原粒径级配制得原生矸石并进行单轴侧限压缩试验,根据试验数据拟合得到矸石充填材 料应力与应变的关系为:εe=0.139+0.057ln(σe+0.063),利用顶板动态监测仪与充填体应力监测仪对工作面回采过程中充填体的应力与应变关系进行现场动态监测,得到现场实测曲线;在同一坐标系下,对比测试与实测的曲线,以实测曲线为目标,采用修正拟合关系式中主要参数的方法,对测试曲线进行修正。修正后的应力与应变关系为:ε=0.117+0.037ln(σ-1.140),按照上述的修正方法,修正系数为l1=0.84,l2=0.65,l3=-18.09;由实验室测试矸石充填材料的容重与弹性地基系数关系为:
Figure PCTCN2016106613-appb-000013
修正后的容重与弹性地基系数关系为:
Figure PCTCN2016106613-appb-000014
按照上述的修正方法,修正系数为l4=6.83,l5=0.63。

Claims (5)

  1. 一种基于实测的充填材料力学特性曲线修正方法,其特征在于包括如下步骤:
    A、基于实验室钢桶压实试验,对充填材料进行单轴侧限压缩,并根据试验数据绘制充填材料应力与应变、容重与弹性地基系数关系的测试曲线;
    B、根据测试曲线的变化趋势,借助Excel、Origin、Matlab专业数据处理软件,拟合应力与应变、容重与弹性地基系数数值关系表达式;
    C、利用顶板动态监测仪与充填体应力监测仪对采煤工作面回采过程中充填体的应力与应变关系进行现场动态监测,得到现场实测曲线;
    D、在同一坐标系下分别绘制实验室测试及现场实测的应力与应变关系曲线、容重与弹性地基系数关系曲线,其中测试曲线以拟合关系式运算值替代;
    E、对比实验室测试与现场实测曲线,以实测曲线为目标,采用修正拟合关系式中特征参数的方法,对测试曲线进行修正。
  2. 根据权利要求1所述的一种基于实测的充填材料力学特性曲线修正方法,其特征在于:所述步骤A中绘制充填材料应力与应变、容重与弹性地基系数关系的测试曲线的具体步骤如下:
    a、实验室试验:利用液压试验机对压实钢筒中的充填材料进行单轴侧限压缩,设计最大轴向压应力为20MPa,加载速率为2kN·s-1
    b、确定各参数间关系:
    应变量εe确定:设定充填体试样原始装料高度为h0,在轴向受压的过程中,定义其压缩变形量为Δh,则试样的应变量εe为:
    Figure PCTCN2016106613-appb-100001
    容重γh的确定:设定压实钢筒的半径为r0、原始装料质量为M0,则试样在压缩变形量为Δh时对应的容重γh为:
    弹性地基系数kge确定:定义充填体试样的变形模量为:Ee=σee,其中σe表示试样所受压实力,εe为试样的应变量,同时设定充填体弹性地基系数随深度变化呈线性增大的形式,即充填体的弹性地基系数kge由式(3)确定:
    Figure PCTCN2016106613-appb-100003
    由式(3)得到充填体的弹性地基系数kge与应力与应变的关系为:
    Figure PCTCN2016106613-appb-100004
    c、绘制测试曲线:基于实验室试验数据和各参数间关系,分别绘制出充填材料应力与应变、容重与弹性地基系数关系的两个测试曲线。
  3. 根据权利要求1所述的一种基于实测的充填材料力学特性曲线修正方法,其特征在于:所述的步骤B中:
    应力与应变的曲线拟合形式设定为:ε=a+bln(σ+c),式中ε为实验室测试的充填材料的应变量;
    容重与弹性地基系数数值关系的曲线拟合形式设定为:kg=ae,式中kg为实验室测试的充填体的弹性地基系数;
    或应力与应变、容重与弹性地基系数数值关系的拟合曲线满足决定系数R2>0.9即可,决定系数为拟合曲线相关系数R的平方。
  4. 根据权利要求1所述的一种基于实测的充填材料力学特性曲线修正方法,其特征在于:所述的步骤C中:根据顶板位移的下沉值与原始采高的比值反算充填体的应变,实测顶板位移下沉值为Δd,设定煤层原始采高为do,则充填体的实测应变量为εa=Δd/do;根据充填体应力监测仪动态监测充填体自身的应力变化,其中,充填体应力监测仪的布设位置和个数与顶板动态监测仪保持一致,确保充填体应力监测与顶板动态监测同时进行,从而得到实测应力与应变关系曲线,并在此基础上根据步骤A中各参数间关系,得到实测容重与弹性地基系数关系曲线。
  5. 根据权利要求1所述的一种基于实测的充填材料力学特性曲线修正方法,其特征在于:所述的步骤E中,采用修正拟合关系式中特征参数的方法对测试曲线进行修正,包括:应力与应变的修正关系:ε=l1a+l2bln(σ+l3c),式中l1、l2、l3为修正系数;容重与弹性地基系数的修正关系:
    Figure PCTCN2016106613-appb-100005
    式中l4、l5为修正系数;修正系数l1、l2、l3、l4、l5的取值由压实试验加载应力、加载速率、曲线拟合形式、充填体的材料构成、充填体的粒径级配决定;其它满足决定系数R2>0.9要求的力学特性拟合曲线可类似采用修正关系式中特征参数的方法进行修正。
PCT/CN2016/106613 2016-07-19 2016-11-21 一种基于实测的充填材料力学特性曲线修正方法 WO2018014477A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610571304.2A CN106198232A (zh) 2016-07-19 2016-07-19 一种基于实测的充填材料力学特性曲线修正方法
CN201610571304.2 2016-07-19

Publications (1)

Publication Number Publication Date
WO2018014477A1 true WO2018014477A1 (zh) 2018-01-25

Family

ID=57494512

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/106613 WO2018014477A1 (zh) 2016-07-19 2016-11-21 一种基于实测的充填材料力学特性曲线修正方法

Country Status (2)

Country Link
CN (1) CN106198232A (zh)
WO (1) WO2018014477A1 (zh)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109117585A (zh) * 2018-09-06 2019-01-01 中国矿业大学 一种固体充填材料内部应力确定方法
CN110609059A (zh) * 2019-10-14 2019-12-24 机械工业勘察设计研究院有限公司 地源热泵系统施工中钻孔回填材料的导热系数测定方法
CN111157401A (zh) * 2019-12-30 2020-05-15 丽水学院 粒料级配缩尺后最大干密度试验的数据研究方法
CN111579579A (zh) * 2020-05-26 2020-08-25 中国地质大学(武汉) 多点全方位co2相变致裂压力时程曲线测试系统与方法
CN112461432A (zh) * 2020-10-30 2021-03-09 成都凯天电子股份有限公司 一种实现大气数据测量长期稳定的在线修正方法
CN112798738A (zh) * 2020-12-28 2021-05-14 汉威科技集团股份有限公司 基于传感器特性曲线的响应模型及浓度补偿方法
CN112881241A (zh) * 2021-01-19 2021-06-01 华东交通大学 一种确定颗粒材料模量软化和恢复的方法
CN112945770A (zh) * 2021-02-04 2021-06-11 武汉钢铁有限公司 基于dic的超声疲劳试样应变测量和校准方法
CN112945771A (zh) * 2021-02-04 2021-06-11 武汉钢铁有限公司 一种超声疲劳试验试样应力应变校准方法
CN113177304A (zh) * 2021-04-19 2021-07-27 恒大新能源汽车投资控股集团有限公司 一种车辆悬架位移-接地力曲线的确定方法和装置
CN113720679A (zh) * 2021-07-26 2021-11-30 桂林电子科技大学 一种微米尺寸电子焊料力学本构方程测试方法
CN113916657A (zh) * 2021-10-09 2022-01-11 生态环境部固体废物与化学品管理技术中心 一种胶结充填体损伤评价方法
CN115045350A (zh) * 2022-06-28 2022-09-13 中国铁道科学研究院集团有限公司铁道建筑研究所 一种变参数智能调节高铁路基填料振动压实方法及系统
CN117409870A (zh) * 2023-10-18 2024-01-16 中国矿业大学 一种土石混合体侧限压缩变形的细观力学预测方法

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107014680A (zh) 2017-03-16 2017-08-04 中国矿业大学 一种固体充填体物理相似模拟材料的确定方法
CN108868770B (zh) * 2018-06-12 2021-02-26 中国矿业大学 一种充填开采岩层位态精准控制设计方法
CN110686968A (zh) * 2018-07-04 2020-01-14 湖南大学 一种采用橡胶和原木模拟弹性地基的装置和方法
CN109746112B (zh) * 2019-02-12 2020-09-04 中国矿业大学 一种粗煤泥重力分选设备与方法
CN110553936A (zh) * 2019-09-18 2019-12-10 中国矿业大学 一种散体充填材料承载压缩应变预计方法
CN111272795B (zh) * 2020-01-20 2023-04-25 中国石油天然气股份有限公司 支撑剂嵌入程度的确定方法、装置、设备及存储介质
CN111879648A (zh) * 2020-07-24 2020-11-03 三峡大学 一种弹性模量的校准方法
CN113295526B (zh) * 2021-05-24 2022-04-26 辽宁工程技术大学 一种用电阻应变数据修正试验机位移的方法
CN115146560B (zh) * 2022-06-30 2024-05-03 武汉理工大学 基于vg模型预测干湿、冻融循环土水特征曲线的方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004156349A (ja) * 2002-11-07 2004-06-03 Goro Kuno 流動化処理工法
CN103510984A (zh) * 2013-10-23 2014-01-15 中国矿业大学 固体充填采煤充采质量比设计方法
CN103940669A (zh) * 2014-04-14 2014-07-23 中国矿业大学 一种固体充填材料力学特性测试方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004156349A (ja) * 2002-11-07 2004-06-03 Goro Kuno 流動化処理工法
CN103510984A (zh) * 2013-10-23 2014-01-15 中国矿业大学 固体充填采煤充采质量比设计方法
CN103940669A (zh) * 2014-04-14 2014-07-23 中国矿业大学 一种固体充填材料力学特性测试方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZHANG, QIANG: "Solid Filling Body and Hydraulic Support Collaborative Roof Controlling Mechanism Research", CHINA DOCTORAL DISSERTATIONS ELECTRONIC JOURNALS NETWORK, 30 June 2016 (2016-06-30), pages 15 - 26 *

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109117585B (zh) * 2018-09-06 2022-10-28 中国矿业大学 一种固体充填材料内部应力确定方法
CN109117585A (zh) * 2018-09-06 2019-01-01 中国矿业大学 一种固体充填材料内部应力确定方法
CN110609059A (zh) * 2019-10-14 2019-12-24 机械工业勘察设计研究院有限公司 地源热泵系统施工中钻孔回填材料的导热系数测定方法
CN111157401A (zh) * 2019-12-30 2020-05-15 丽水学院 粒料级配缩尺后最大干密度试验的数据研究方法
CN111579579A (zh) * 2020-05-26 2020-08-25 中国地质大学(武汉) 多点全方位co2相变致裂压力时程曲线测试系统与方法
CN111579579B (zh) * 2020-05-26 2024-04-16 中国地质大学(武汉) 多点全方位co2相变致裂压力时程曲线测试系统与方法
CN112461432A (zh) * 2020-10-30 2021-03-09 成都凯天电子股份有限公司 一种实现大气数据测量长期稳定的在线修正方法
CN112798738A (zh) * 2020-12-28 2021-05-14 汉威科技集团股份有限公司 基于传感器特性曲线的响应模型及浓度补偿方法
CN112798738B (zh) * 2020-12-28 2023-06-13 汉威科技集团股份有限公司 基于传感器特性曲线的响应模型的构建方法及浓度补偿方法
CN112881241A (zh) * 2021-01-19 2021-06-01 华东交通大学 一种确定颗粒材料模量软化和恢复的方法
CN112945771B (zh) * 2021-02-04 2023-07-18 武汉钢铁有限公司 一种超声疲劳试验试样应力应变校准方法
CN112945771A (zh) * 2021-02-04 2021-06-11 武汉钢铁有限公司 一种超声疲劳试验试样应力应变校准方法
CN112945770B (zh) * 2021-02-04 2023-07-18 武汉钢铁有限公司 基于dic的超声疲劳试样应变测量和校准方法
CN112945770A (zh) * 2021-02-04 2021-06-11 武汉钢铁有限公司 基于dic的超声疲劳试样应变测量和校准方法
CN113177304A (zh) * 2021-04-19 2021-07-27 恒大新能源汽车投资控股集团有限公司 一种车辆悬架位移-接地力曲线的确定方法和装置
CN113720679A (zh) * 2021-07-26 2021-11-30 桂林电子科技大学 一种微米尺寸电子焊料力学本构方程测试方法
CN113720679B (zh) * 2021-07-26 2024-03-01 桂林电子科技大学 一种微米尺寸电子焊料力学本构方程测试方法
CN113916657A (zh) * 2021-10-09 2022-01-11 生态环境部固体废物与化学品管理技术中心 一种胶结充填体损伤评价方法
CN113916657B (zh) * 2021-10-09 2024-05-17 生态环境部固体废物与化学品管理技术中心 一种胶结充填体损伤评价方法
CN115045350A (zh) * 2022-06-28 2022-09-13 中国铁道科学研究院集团有限公司铁道建筑研究所 一种变参数智能调节高铁路基填料振动压实方法及系统
CN115045350B (zh) * 2022-06-28 2023-11-21 中国铁道科学研究院集团有限公司铁道建筑研究所 一种变参数智能调节高铁路基填料振动压实方法及系统
CN117409870A (zh) * 2023-10-18 2024-01-16 中国矿业大学 一种土石混合体侧限压缩变形的细观力学预测方法
CN117409870B (zh) * 2023-10-18 2024-05-24 中国矿业大学 一种土石混合体侧限压缩变形的细观力学预测方法

Also Published As

Publication number Publication date
CN106198232A (zh) 2016-12-07

Similar Documents

Publication Publication Date Title
WO2018014477A1 (zh) 一种基于实测的充填材料力学特性曲线修正方法
Akdag et al. Effects of thermal damage on strain burst mechanism for brittle rocks under true-triaxial loading conditions
Weilv et al. Effect of inclined interface angle on shear strength and deformation response of cemented paste backfill-rock under triaxial compression
Cheng et al. Laboratory investigation of the mechanical properties of coal-rock combined body
Wang et al. Mechanical properties and failure modes of stratified backfill under triaxial cyclic loading and unloading
Zhao et al. Safety of barricades in cemented paste-backfilled stopes
Yang et al. Deformation and damage failure behavior of mudstone specimens under single-stage and multi-stage triaxial compression
Srivastava et al. Empirical estimation of strength of jointed rocks traversed by rock bolts based on experimental observation
Zhang et al. Laboratory investigation on shear behaviors of bolt–grout interface subjected to constant normal stiffness
Fang et al. Physical simulation of upper protective coal layer mining with different coal seam inclinations
Chen et al. Equivalent numerical method and sensitivity analysis of microparameters for micropore compression stage of cemented tailings backfill
Wang et al. Numerical and experimental investigation of the anisotropic tensile behavior of layered rocks in 3D space under Brazilian test conditions
Zhang et al. Experimental study on the preparation method of coal-like materials based on similarity of material properties and drilling parameters
Pleshko et al. Assessment of stress–strain behavior of shaft lining in bottomhole area during sinking by real-time monitoring and computer modeling data
Zhao et al. Similar model test of a mudstone-interbedded–sandstone-bedding rock tunnel
CN115266348B (zh) 一种基于动静载叠加试验的岩爆倾向性等级判断方法
Zhao et al. Model experimental study on strain field evolution and damage distribution of filling body under blast loading
Xu et al. An experimental study of the mechanical behavior of a weak intercalated layer
Gao et al. Failure Evolution Characteristics and Resistivity Damage Model of Expansive Clay with Filled Fissures under Uniaxial Compression
Talmon et al. Grouting the tail void of bored tunnels: the role of hardening and consolidation of grouts
Zhang et al. Study on impact tendency of coal and rock mass based on different stress paths
Wang et al. Study of the backfill confined consolidation law and creep constitutive model under high stress
Zahra et al. Experimental investigation of dry joint surface and closure characteristics of interlocking blocks under compression
Gao et al. A novel relationship between elastic modulus and void ratio associated with principal stress for coral calcareous sand
Zhang et al. Geomechanical modeling of the stability of deep tunnel in Dingji coal mine in China

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16909404

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16909404

Country of ref document: EP

Kind code of ref document: A1