CN114893233A - Coupling and collaborative control method of anchor-grouting support system in deep roadway - Google Patents

Coupling and collaborative control method of anchor-grouting support system in deep roadway Download PDF

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CN114893233A
CN114893233A CN202210512640.5A CN202210512640A CN114893233A CN 114893233 A CN114893233 A CN 114893233A CN 202210512640 A CN202210512640 A CN 202210512640A CN 114893233 A CN114893233 A CN 114893233A
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grouting
grouting anchor
roadway
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王雷
鹿伟
宋克志
孙会彬
吴怡林
蔺维南
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Ludong University
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
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    • E21D20/00—Setting anchoring-bolts
    • E21D20/02—Setting anchoring-bolts with provisions for grouting
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Abstract

The invention discloses a coupling cooperative control method for a deep roadway bolting-grouting support system, which is characterized by comprising the following steps of: collecting the stress of grouting anchor rods and grouting anchor cables at two sides, two shoulders and a top plate of a roadway tunneling section, a working face stoping section and a roadway retaining section, carrying out standardized dimensionless processing on monitoring data, respectively calculating a weight value and a comprehensive evaluation index, establishing an average coupling degree model and an average coupling synergy model, and carrying out coupling synergy evaluation on a deep roadway bolting-grouting support system; and optimizing the bolting-grouting support parameters of the tunnel, evaluating the coupling cooperative control of bolting-grouting support systems in different sections of the tunnel, and ensuring the stability of the whole process of the deep tunnel.

Description

深部巷道锚注支护体系耦合协同控制方法Coupling and collaborative control method of anchor-grouting support system in deep roadway

技术领域technical field

本发明涉及地下工程中安全技术领域，具体地讲是深部巷道锚注支护体系耦合协同控制方法。The invention relates to the technical field of safety in underground engineering, in particular to a coupling collaborative control method of a deep roadway anchoring and grouting support system.

背景技术Background technique

深部巷道地应力高，围岩受到应力扰动和超前压力影响，围岩松散破碎，自承载能力弱，支护构件无稳定的锚固岩层，支护构件无法发挥支护潜能，造成巷道顶板下沉、底鼓和两帮内挤，巷道大变形严重，直接影响巷道运输设备运行、工作人员安全和工作面正常回采。In the deep roadway, the ground stress is high, the surrounding rock is affected by stress disturbance and advanced pressure, the surrounding rock is loose and broken, and the self-bearing capacity is weak. The bottom drum and the two gangs are crowded, and the roadway is seriously deformed, which directly affects the operation of roadway transportation equipment, the safety of workers and the normal mining of the working face.

利用注浆锚杆和注浆锚索对软弱破碎围岩进行支护，将水泥浆液充填裂隙中，破碎岩石重新胶结成整体，提高围岩自承载能力，利用注浆锚杆和注浆锚索对胶结围岩施加预应力，增加围岩主动支护强度，增强巷道稳定性，而注浆锚杆和注浆锚索协同支护，优化支护参数，充分发挥注浆锚杆和注浆锚索的支护能力，因此，深部巷道锚注支护体系耦合协同程度，决定深部巷道锚注支护控制效果，直接影响深部巷道稳定性。Use grouting bolts and grouting anchor cables to support the weak and broken surrounding rock, fill the cracks with cement slurry, and re-cement the broken rock into a whole to improve the self-bearing capacity of the surrounding rock. The cable exerts prestress on the cemented surrounding rock, increases the active support strength of the surrounding rock, and enhances the stability of the roadway, while the grouting bolt and grouting anchor cable cooperate to support, optimize the supporting parameters, and give full play to the grouting bolt and grouting The supporting capacity of the anchor cable, therefore, the degree of coupling and coordination of the anchor-grouting support system in the deep roadway determines the control effect of the anchor-grouting support in the deep roadway, and directly affects the stability of the deep roadway.

现有技术存在下述问题：The prior art has the following problems:

1、深部锚注支护巷道只是通过位移收敛量等参数评价巷道的控制情况，无法评价锚注支护体系的注浆锚杆和注浆锚索耦合协同程度；1. The control of the roadway is only evaluated by parameters such as displacement convergence, and the coupling degree of the grouting bolt and the grouting anchor cable of the anchoring support system cannot be evaluated;

2、锚注支护参数在巷道掘进区间确定，无法根据注浆锚杆和注浆锚索耦合协同程度进行动态调整。2. The parameters of anchoring and grouting support are determined in the tunnel excavation interval, and cannot be dynamically adjusted according to the coupling degree of grouting anchor rod and grouting anchor cable.

发明内容SUMMARY OF THE INVENTION

本发明的目的是克服上述已有技术存在的不足，而提供一种深部巷道锚注支护体系耦合协同控制方法。The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, and to provide a coupling cooperative control method for the anchoring and supporting system of the deep roadway.

本发明提供的技术方案是：深部巷道锚注支护体系耦合协同控制方法，其特殊之处在于，包括以下步骤：The technical solution provided by the present invention is: a coupling collaborative control method for a deep roadway anchorage-grouting support system, which is special in that it includes the following steps:

a在掘进巷道两帮、两肩和顶板施打注浆锚杆和注浆锚索，并安装注浆锚杆和注浆锚索测力计，采集巷道掘进区间、工作面回采区间和留巷区间两帮、两肩和顶板的注浆锚杆和注浆锚索的受力；a) Apply grouting bolts and grouting anchor cables to the two sides, shoulders and roof of the excavation roadway, and install grouting bolts and grouting anchor cable dynamometers to collect data from the roadway excavation interval, working face mining interval and road retention. The stress of the grouting bolts and grouting anchor cables of the two sides, two shoulders and the roof in the interval;

b对注浆锚杆和注浆锚索每天、每个部位和每个区间的受力数据进行标准化无量纲处理，利用熵值法计算掘进区间、工作面回采区间和留巷区间巷道注浆锚杆和注浆锚索的权重值；b. Standardize the dimensionless processing of the force data of the grouting bolt and grouting anchor cable every day, each position and each interval, and use the entropy method to calculate the roadway grouting anchor in the excavation interval, the working face mining interval and the roadway retention interval. Weight values for rods and grouting cables;

c计算深部巷道不同时刻、不同部位、不同区间的注浆锚杆和注浆锚索的综合评价指数，建立注浆锚杆和注浆锚索平均耦合度模型；c Calculate the comprehensive evaluation index of grouting bolts and grouting anchor cables at different times, different positions and different intervals in the deep roadway, and establish the average coupling degree model of grouting bolts and grouting anchor cables;

d建立注浆锚杆和注浆锚索平均耦合协同度模型，评价深部巷道锚注支护体系耦合协同情况，对比分析深部巷道掘进区间、回采区间和留巷区间耦合协同度大小，调整深部巷道锚注支护参数，确保深部巷道全过程稳定。d Establish an average coupling synergy model of grouting bolts and grouting anchor cables, evaluate the coupling synergy of the anchor-grouting support system in the deep roadway, compare and analyze the coupling synergy between the excavation interval, the mining interval and the road retaining interval in the deep roadway, and adjust the deep roadway. Anchor support parameters to ensure the stability of the deep roadway throughout the process.

优选地，所述的步骤a中巷道两帮、两肩和顶板的注浆锚杆和注浆锚索测力计在一个监测断面上。Preferably, in the step a, the grouting anchor rods and the grouting anchor cable dynamometers of the two sides, the two shoulders and the roof of the roadway are on one monitoring section.

优选地，所述的步骤b中对注浆锚杆和注浆锚索每天、每个部位和每个区间的受力数据进行标准化无量纲处理，计算公式为

Figure DEST_PATH_IMAGE002
，uij为巷道注浆锚杆和注浆锚索每天、每个部位和每个区间的受力原始数据，in(uj)为不同区间每一根注浆锚杆和注浆锚索开始时初始值，max(uj)每根注浆锚杆和注浆锚索不同区间的最大值，i为监测天数，j为每个区间注浆锚杆和注浆锚索数；Preferably, in the step b, the force data of the grouting anchor rod and the grouting anchor cable are subjected to standardized dimensionless processing every day, each position and each interval, and the calculation formula is as follows:
Figure DEST_PATH_IMAGE002
, uij is the original force data of roadway grouting bolt and grouting anchor cable every day, each position and each interval, in(uj) is the initial value of each grouting bolt and grouting anchor cable in different intervals value, max(uj) the maximum value of each grouting anchor rod and grouting anchor cable in different intervals, i is the number of monitoring days, j is the number of grouting anchor rods and grouting anchor cables in each interval;

所述的掘进区间、工作面回采区间和留巷区间巷道不同部位注浆锚杆和注浆锚索的权重值为

Figure DEST_PATH_IMAGE004
，ej为掘进区间、工作面回采区间和留巷区间巷道不同部位注浆锚杆和注浆锚索的熵值，m为监测总天数；The weights of the grouting bolts and grouting anchor cables in different parts of the roadway in the excavation section, the working face mining section and the roadway retaining section are as follows:
Figure DEST_PATH_IMAGE004
, ej is the entropy value of grouting bolts and grouting bolts at different parts of the roadway in the excavation section, the working face mining section and the roadway retaining section, and m is the total monitoring days;

所述的掘进区间、工作面回采区间和留巷区间巷道不同部位注浆锚杆和注浆锚索的熵值为

Figure DEST_PATH_IMAGE006
，kij为巷道注浆锚杆和注浆锚索每天、每个部位和每个区间的指标比重；The entropy value of the grouting bolts and grouting anchor cables in different parts of the roadway in the excavation section, the working face mining section and the roadway retaining section is as follows:
Figure DEST_PATH_IMAGE006
, kij is the index proportion of roadway grouting bolt and grouting anchor cable per day, each part and each interval;

所述的巷道注浆锚杆和注浆锚索每天、每个部位和每个区间的指标比重为

Figure DEST_PATH_IMAGE008
。The index proportion of the roadway grouting anchor rod and grouting anchor cable per day, each part and each interval is:
Figure DEST_PATH_IMAGE008
.

优选地，所述的步骤c中巷道不同区间的注浆锚杆的综合评价指数为

Figure DEST_PATH_IMAGE010
,巷道不同区间注浆锚索的综合评价指数为
Figure DEST_PATH_IMAGE012
，n注浆锚索总数。 Preferably, the comprehensive evaluation index of the grouting bolts in different sections of the roadway in the step c is:
Figure DEST_PATH_IMAGE010
, the comprehensive evaluation index of the grouting anchor cable in different sections of the roadway is
Figure DEST_PATH_IMAGE012
, n the total number of grouting anchor cables .

优选地，所述的步骤c中注浆锚杆和注浆锚索平均耦合度模型为

Figure DEST_PATH_IMAGE014
。Preferably, in the step c, the average coupling degree model of the grouting anchor rod and the grouting anchor cable is:
Figure DEST_PATH_IMAGE014
.

优选地，所述的步骤d中注浆锚杆和注浆锚索平均耦合协同度模型为

Figure DEST_PATH_IMAGE016
,评价深部巷道锚注支护体系耦合协同等级，δ、ε为重要性系数，注浆锚杆和注浆锚索的重要程度。Preferably, in the step d, the average coupling degree model of the grouting anchor rod and the grouting anchor cable is:
Figure DEST_PATH_IMAGE016
, to evaluate the coupling synergy level of the anchor-grouting support system in the deep roadway.

本发明的有益效果：Beneficial effects of the present invention:

1、利用平均耦合协同度评价深部巷道锚注支护体系，优化巷道锚注支护参数，在合理的支护参数下充分发挥锚注支护构件的支护潜能；1. Use the average coupling synergy to evaluate the anchoring and supporting system of the deep roadway, optimize the parameters of the roadway's anchoring and supporting, and give full play to the supporting potential of the anchoring and supporting components under reasonable supporting parameters;

2、对巷道不同区间锚注支护体系耦合协同控制进行评价，分析不同区间耦合协同度与安全值之间的关系，并针对性的调整区间锚注支护参数，保证深部巷道全过程的稳定性。2. Evaluate the coupling cooperative control of the anchoring support system in different sections of the roadway, analyze the relationship between the coupling degree of cooperation and the safety value in different sections, and adjust the anchoring and supporting parameters of the sections to ensure the stability of the whole process of the deep roadway. sex.

附图说明Description of drawings

图1是本发明的流程图；Fig. 1 is the flow chart of the present invention;

图2本发明的深部锚注支护巷道掘进区间示意图；Fig. 2 is a schematic diagram of the tunnel excavation section of the deep anchoring support roadway of the present invention;

图3本发明的深部锚注支护巷道回采区间示意图；3 is a schematic diagram of the mining interval of the deep anchoring and supporting roadway of the present invention;

图4本发明的深部锚注支护巷道留巷区间示意图。Fig. 4 is a schematic diagram of the roadway retaining interval of the deep anchoring support roadway of the present invention.

图中：1煤层，2工作面，3采空区，4监测断面，5掘进巷道，q掘进区间，c工作面回采区间，h留巷区间。In the figure: 1 coal seam, 2 working face, 3 goaf, 4 monitoring section, 5 excavation roadway, q excavation section, c working face mining section, h roadway retention section.

具体实施方式Detailed ways

下面结合附图对本发明进行详细说明。The present invention will be described in detail below with reference to the accompanying drawings.

如图1、2、3、4所示，以煤矿的深部巷道锚注支护体系为例，深部巷道锚注支护体系包括煤层1和采空区3；深部巷道锚注支护体系耦合协同控制方法， 它包括以下步骤：As shown in Figures 1, 2, 3, and 4, taking the deep roadway anchoring support system of a coal mine as an example, the deep roadway bolting and supporting system includes coal seam 1 and goaf 3; the deep roadway bolting and supporting system is coupled and coordinated The control method includes the following steps:

第一步，在掘进巷道5两帮、两肩和顶板施打注浆锚杆和注浆锚索，并安装注浆锚杆和注浆锚索测力计，采集巷道掘进区间q、工作面2回采区间c和留巷区间h两帮、两肩和顶板的注浆锚杆和注浆锚索的受力；The first step is to apply grouting bolts and grouting anchor cables on the two sides, shoulders and roof of the tunnel 5, and install the grouting bolts and grouting anchor cables dynamometers to collect the tunnel excavation interval q, working face 2 The stress of the grouting bolts and grouting anchor cables of the two sides, shoulders and roof of the mining section c and the entry retaining section h;

深部巷道开挖完成后，立即对巷道实施锚注支护，在巷道两帮、两肩和顶板安装注浆锚杆和注浆锚索测力计，且注浆锚杆和注浆锚索测力计必须在一个监测断面4上，每天相同的时间点采集注浆锚杆和注浆锚索的受力大小，保证注浆锚杆和注浆锚索受力时间一致性；After the excavation of the deep roadway is completed, the roadway shall be immediately supported by anchoring and grouting, and the grouting bolt and grouting anchor cable dynamometer shall be installed on the two sides, shoulders and roof of the roadway, and the grouting bolt and grouting anchor cable shall be measured. The force meter must be on a monitoring section 4 to collect the force of the grouting bolt and the grouting anchor cable at the same time point every day to ensure the consistency of the force time of the grouting bolt and the grouting anchor cable;

注浆锚杆和注浆锚索受力监测贯穿掘进巷道5全过程，巷道划分为三个不同的区间，分别为巷道开始掘进至工作面2开始回采为巷道掘进区间q，工作面2开始回采至回采到监测断面为工作面2回采区间c，工作面2回采到监测断面4至工作面2后巷道稳定为留巷区间h；The force monitoring of grouting bolts and grouting anchor cables runs through the whole process of tunnel 5. The tunnel is divided into three different sections, which are the tunnel excavation start to the working face 2 and the mining section q, and the working face 2 starts mining From the mining to the monitoring section, it is the mining section c of working face 2, and after the working face 2 is mined to the monitoring section 4 to the working face 2, the roadway is stable as the roadway retention section h;

注浆锚杆和注浆锚索受力监测贯穿巷道全过程，巷道划分为三个不同的区间，分别为巷道开始掘进至工作面开始回采为巷道掘进区间q，工作面开始回采至回采到监测断面为工作面回采区间c，工作面回采到监测断面至工作面后巷道稳定为留巷区间h；The force monitoring of grouting bolts and grouting anchor cables runs through the whole process of the roadway. The roadway is divided into three different intervals, which are from the start of the roadway to the start of mining at the working face. The section is the working face mining interval c, and the working face is mined to the monitoring section to the working face and the roadway stability is the entry retaining interval h;

第2步，对注浆锚杆和注浆锚索每天、每个部位和每个区间的受力数据进行标准化无量纲处理，利用熵值法计算掘进区间q、工作面2回采区间c和留巷区间h巷道注浆锚杆和注浆锚索的权重值；In the second step, standardize the dimensionless processing of the force data of the grouting bolt and grouting anchor cable every day, each part and each interval, and use the entropy method to calculate the excavation interval q, the working face 2 mining interval c and the retention period The weight value of the grouting bolt and the grouting anchor cable for the h roadway between the roadways;

对注浆锚杆和注浆锚杆监测数据进行统计，对每根注浆锚杆和注浆锚索受力监测数据分别进行归集，并根据巷道划分的三个区间，将注浆锚杆和注浆锚索监测数据整理归纳为三个数据库，最终形成注浆锚杆和注浆锚索监测数据集和数据库；The monitoring data of grouting bolts and grouting bolts are counted, and the force monitoring data of each grouting bolt and grouting anchor cable are collected separately, and the grouting bolts are divided into three sections according to the roadway. And grouting anchor cable monitoring data are sorted into three databases, and finally the grouting bolt and grouting anchor cable monitoring data set and database are formed;

对数据集和数据库内的注浆锚杆和注浆锚索监测数据进行标准化无量纲处理，计算公式为

Figure DEST_PATH_IMAGE018
，u ij 为巷道注浆锚杆和注浆锚索每天、每个部位和每个区间的监测原始数据，in(u j )为不同区间每根注浆锚杆和注浆锚索开始时初始值，max(uj)每根注浆锚杆和注浆锚索不同区间的最大值，i为监测天数，j为每个区间注浆锚杆和注浆锚索数；Standardized dimensionless processing is performed on the monitoring data of grouting bolts and grouting anchor cables in the dataset and database, and the calculation formula is as follows:
Figure DEST_PATH_IMAGE018
, u ij is the monitoring raw data of roadway grouting bolt and grouting anchor cable every day, each position and each interval, in(u j ) is the initial monitoring of each grouting bolt and grouting anchor cable in different intervals value, max(u j ) the maximum value of each grouting bolt and grouting anchor cable in different intervals, i is the number of monitoring days, j is the number of grouting bolts and grouting anchor cables in each interval;

利用标准化无量纲处理的监测数据，计算每天、每个部位和每个区间的注浆锚杆和注浆锚索的指标比重，指标比重

Figure DEST_PATH_IMAGE020
，
Figure DEST_PATH_IMAGE022
为在一定区间范围内，注浆锚杆或注浆锚索每天无量纲数据的总和；Using the standardized dimensionless processing monitoring data, calculate the index proportions of grouting bolts and grouting anchor cables for each day, each position and each interval, and the index proportions
Figure DEST_PATH_IMAGE020
,
Figure DEST_PATH_IMAGE022
is the sum of the dimensionless data of grouting bolts or grouting anchor cables every day within a certain interval;

利用注浆锚杆和注浆锚索指标比重，计算掘进区间q、工作面2回采区间c和留巷区间h巷道注浆锚杆和注浆锚索的熵值，熵值为

Figure DEST_PATH_IMAGE024
，k ij 为注浆锚杆和注浆锚索指标比重；Using the index proportions of grouting bolts and grouting anchor cables, calculate the entropy values of grouting bolts and grouting anchor cables in the roadway in the excavation interval q, the working face 2 mining interval c, and the entry retaining interval h. The entropy value is
Figure DEST_PATH_IMAGE024
, k ij is the index proportion of grouting bolt and grouting anchor cable;

利用注浆锚杆和注浆锚索熵值，计算掘进区间q、工作面回采区间c和留巷区间h巷道注浆锚杆和注浆锚索的权重值为

Figure DEST_PATH_IMAGE026
，e j 为深部巷道注浆锚杆和注浆锚索的熵值；Using the entropy value of grouting anchor rod and grouting anchor cable, the weights of grouting anchor rod and grouting anchor cable in the tunnel are calculated as
Figure DEST_PATH_IMAGE026
, e j is the entropy value of grouting bolt and grouting anchor cable in deep roadway;

第3步，计算深部巷道不同时刻、不同部位、不同区间的注浆锚杆和注浆锚索的综合评价指数，建立注浆锚杆和注浆锚索平均耦合度模型；The third step is to calculate the comprehensive evaluation index of the grouting anchor rod and grouting anchor cable at different times, different positions and different intervals in the deep roadway, and establish the average coupling degree model of the grouting anchor rod and grouting anchor cable;

利用注浆锚杆和注浆锚索的权重和标准无量纲化值，分别计算深部巷道不同区间的注浆锚杆的综合评价指数

Figure DEST_PATH_IMAGE028
,不同区间注浆锚索的综合评价指数为
Figure DEST_PATH_IMAGE030
；Using the weight and standard dimensionless value of grouting bolt and grouting anchor cable, the comprehensive evaluation index of grouting bolt in different sections of deep roadway is calculated respectively.
Figure DEST_PATH_IMAGE028
, the comprehensive evaluation index of grouting anchor cable in different intervals is
Figure DEST_PATH_IMAGE030
;

注浆锚杆和注浆锚索平均耦合度模型为

Figure DEST_PATH_IMAGE032
，f i 为一定区间内所有注浆锚杆的综合评价指数，g i 为一定区间内所有注浆锚索的综合评价指数，m为监测总天数；The average coupling degree model of grouting bolt and grouting anchor cable is
Figure DEST_PATH_IMAGE032
, f i is the comprehensive evaluation index of all grouting anchor rods in a certain interval , gi is the comprehensive evaluation index of all grouting anchor cables in a certain interval, m is the total number of monitoring days;

步骤4，建立注浆锚杆和注浆锚索平均耦合协同度模型，评价深部巷道锚注支护体系耦合协同情况，对比分析深部巷道掘进区间q、工作面回采区间c和留巷区间h耦合协同度大小，调整深部巷道锚注支护参数，确保深部巷道全过程稳定；Step 4: Establish an average coupling synergy model of grouting bolts and grouting anchor cables, evaluate the coupling and synergy of the anchoring and supporting systems in the deep roadway, and compare and analyze the coupling between the deep roadway excavation interval q, the working face mining interval c, and the roadway retention interval h The degree of coordination, adjust the parameters of the deep roadway anchoring support to ensure the stability of the whole process of the deep roadway;

注浆锚杆和注浆锚索平均耦合协同度模型为

Figure DEST_PATH_IMAGE034
,δ、ε为待定系数，表示注浆锚杆和注浆锚索的重要程度，且δ+ε=1，在深部巷道锚注支护体系中，注浆锚杆和注浆锚索重要程度相同，δ=0.5，ε=0.5；The average coupling synergy model of grouting bolt and grouting anchor cable is:
Figure DEST_PATH_IMAGE034
, δ and ε are undetermined coefficients, indicating the importance of grouting bolts and grouting anchor cables, and δ+ε=1, in the deep roadway anchoring support system, the importance of grouting bolts and grouting anchor cables The same, δ=0.5, ε=0.5;

利用注浆锚杆和注浆锚索平均耦合协同度模型，评价深部巷道锚注支护体系耦合协同等级；当1≥p≥0.8，深部巷道锚注支护体系协同；当0.5≥p＞0.8，深部巷道锚注支护体系基本协同；p＜0.5，深部巷道锚注支护体系失调；Using the average coupling synergy degree model of grouting bolt and grouting anchor cable, the coupling synergy level of the deep roadway anchoring and supporting system is evaluated; when 1≥p≥0.8, the deep roadway anchoring and supporting system is synergistic; when 0.5≥p>0.8 , the anchoring and supporting system of the deep roadway is basically synergistic; p<0.5, the anchoring and supporting system of the deep roadway is out of balance;

利用注浆锚杆和注浆锚索平均耦合协同度模型，对比分析深部巷道掘进区间q、工作面2回采区间c和留巷区间h耦合协同度大小；pq＞pc＞ph＞0.5,深部巷道锚注支护体系整体基本协同，巷道锚注支护参数无需调整；pq＞pc＞0.5＞ph，深部巷道掘进区间q、回采区间c锚注支护体系基本协同，留巷区间h巷道锚注支护体系失调，调整留巷区间h深部巷道锚注支护参数，补打注浆锚杆和注浆锚索；pq＞0.5＞pc＞ph，深部巷道掘进区间q锚注支护体系基本协同，回采区间c和留巷区间h巷道锚注支护体系失调，调整回采区间c和留巷区间h深部巷道锚注支护参数，补打注浆锚杆和注浆锚索；0.5＞pq＞pc＞ph，深部巷道锚注支护体系整体失调，调整巷道全过程锚注支护参数，补打注浆锚杆和注浆锚索，保证深部巷道稳定性。Using the average coupling synergy degree model of grouting bolt and grouting anchor cable, the coupling synergy degree of the deep roadway excavation interval q, the working face 2 mining interval c and the entry retaining interval h is compared and analyzed; p q > p c > p h > 0.5 , The anchoring and supporting system of the deep roadway is basically coordinated as a whole, and the parameters of the roadway anchoring and supporting do not need to be adjusted; p q > p c >0.5 > p h, the anchoring and supporting systems of the deep roadway excavation interval q and the mining interval c are basically coordinated, and the remaining If the anchoring support system of the h roadway in the roadway interval is out of balance, adjust the anchoring and supporting parameters of the deep roadway in the retaining interval h, and refill the grouting bolt and grouting anchor cable; p q > 0.5 > p c > p h, the deep roadway is excavated The anchoring and supporting systems in the interval q are basically coordinated, and the anchoring and supporting systems of the roadway in the mining interval c and the retaining interval h are out of balance. Grouting anchor cable; 0.5 > p q > p c > p h, the anchoring and supporting system of the deep roadway is out of order, adjust the parameters of the whole process of the roadway, and refill the grouting bolt and grouting anchor cable to ensure the deep roadway. Roadway stability.

由技术常识可知，本发明可以通过其他的不脱离其实质或者必要特征的实施方案来实现，因此，就各方面而言，都只是举例说明，不是仅有的。所有在本发明范围内或在等同于本发明的范围内的改变均被本发明包含。It can be known from the technical common sense that the present invention can be realized by other embodiments that do not depart from the essential or essential characteristics thereof, and therefore, in every respect, it is merely an example, not the only one. All changes within the scope of the present invention or within the scope equivalent to the present invention are encompassed by the present invention.

Claims (6)

1. The deep roadway bolting-grouting support system coupling cooperative control method is characterized by comprising the following steps:
a, grouting anchor rods and grouting anchor cables are applied to two sides, two shoulders and a top plate of a driving roadway, grouting anchor rods and grouting anchor cable dynamometers are installed, and the stress of the grouting anchor rods and the grouting anchor cables of the two sides, the two shoulders and the top plate in a driving section, a working face extraction section and a roadway retaining section of the roadway is collected;
b, carrying out standardized dimensionless processing on stress data of the grouting anchor rod and the grouting anchor cable at each position and each interval every day, and calculating the weight values of the grouting anchor rod and the grouting anchor cable in the roadway in a tunneling interval, a working face stoping interval and a roadway retaining interval by using an entropy method;
c, calculating comprehensive evaluation indexes of the grouting anchor rods and the grouting anchor cables in the deep roadway at different moments, different positions and different intervals, and establishing an average coupling degree model of the grouting anchor rods and the grouting anchor cables;
d, establishing a grouting anchor rod and grouting anchor cable average coupling cooperation model, evaluating the coupling cooperation condition of a deep roadway bolting-grouting support system, carrying out comparative analysis on the coupling cooperation degree of a deep roadway tunneling section, a stoping section and a roadway retaining section, adjusting the bolting-grouting support parameters of the deep roadway, and ensuring the stability of the whole process of the deep roadway.
2. The deep tunnel bolting-grouting support system coupling cooperative control method according to claim 1, wherein in the step a, grouting anchor rods and grouting anchor cable forcemeters at two sides, two shoulders and a top plate of a tunnel are on one monitoring section.
3. The deep roadway bolting-grouting support system coupling cooperative control method according to claim 1, wherein in the step b, the force data of each day, each part and each interval of the grouting anchor rod and the grouting anchor cable are subjected to standardized dimensionless processing, and the calculation formula is
Figure 538769DEST_PATH_IMAGE002
Uij is the stress original data of each roadway grouting anchor rod and each grouting anchor cable, each part and each interval every day, in (uj) is the initial value of each grouting anchor rod and each grouting anchor cable in different intervals when starting, max (uj) is the maximum value of each grouting anchor rod and each grouting anchor cable in different intervals, i is the number of monitoring days, and j is the number of grouting anchor rods and each grouting anchor cable in each interval;
the weight values of grouting anchor rods and grouting anchor cables at different parts of the roadway in the tunneling section, the working face stoping section and the entry retaining section are respectively
Figure 987068DEST_PATH_IMAGE004
The ej is entropy values of grouting anchor rods and grouting anchor cables at different positions of the roadway in a tunneling interval, a working face stoping interval and a roadway retaining interval, and the m is the total monitoring days;
the entropy values of grouting anchor rods and grouting anchor cables at different parts of the roadway in the tunneling interval, the working face stoping interval and the entry retaining interval are
Figure 32384DEST_PATH_IMAGE006
Kij is the index specific gravity of the roadway grouting anchor rod and the grouting anchor rope every day, every part and every interval;
the index specific gravity of each day, each part and each interval of the roadway grouting anchor rod and the grouting anchor rope is
Figure 958752DEST_PATH_IMAGE008
。
4. The deep roadway bolting-grouting support system coupling cooperative control method according to claim 1, wherein the comprehensive evaluation index of grouting anchor rods in different sections of the roadway in the step c is
Figure 304283DEST_PATH_IMAGE010
The comprehensive evaluation index of the grouting anchor cable in different sections of the roadway is
Figure 657904DEST_PATH_IMAGE012
And n is the total number of grouting anchor cables.
5. The cooperative control method for the deep roadway bolting-grouting support system according to claim 1, wherein the average coupling degree model of the grouting anchor rod and the grouting anchor cable in step c is
Figure 456095DEST_PATH_IMAGE014
。
6. The deep roadway bolting-grouting support system coupling cooperative control method according to claim 1, wherein said average coupling cooperative degree model of grouting anchor rod and grouting anchor cable in step d is
Figure 920575DEST_PATH_IMAGE016
And evaluating the coupling cooperation grade of the deep roadway bolting-grouting support system, wherein delta and epsilon are importance coefficients and the importance degrees of a grouting anchor rod and a grouting anchor cable.
CN202210512640.5A 2022-05-12 2022-05-12 Coupling and collaborative control method of anchor-grouting support system in deep roadway Pending CN114893233A (en)

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