CN103184887A - Method for underground tunnel drilling construction and geological information inversing - Google Patents
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Abstract
本发明提供一种井下巷道钻孔施工及地质信息反演方法，包括：在三维坐标系中根据预测值建立煤层地质模型；在三维坐标系中预先设置顺层巷道及至少一排钻孔；按预设钻孔进行钻探，在钻探中获得一系列地质信息；根据上述地质信息在三维坐标系中反演和修正煤层地质模型；根据修正后的煤层地质模型在三维坐标系中修正顺层巷道及钻孔走向；根据修正后地质模型进行巷道掘进，以及下一轮钻孔施工。通过对井下施工钻孔的三维设计，录入钻孔实见地质信息，反演出每一钻孔煤层真实的空间分布形态，并根据煤层位置及厚度、岩层分界等信息重构地层，对断层等地质构造异常提出预测，为巷道掘进安全生产提供指导，对出现构造异常位置进行先期处理，保障施工安全。
The present invention provides a method for underground roadway drilling construction and geological information inversion, comprising: establishing a coal seam geological model according to predicted values in a three-dimensional coordinate system; pre-setting bedding roadways and at least one row of drill holes in the three-dimensional coordinate system; Drilling with preset boreholes, obtaining a series of geological information during drilling; inverting and correcting the coal seam geological model in the three-dimensional coordinate system according to the above geological information; correcting the bedding roadway and Drilling direction; Carry out roadway excavation and next round of drilling construction according to the revised geological model. Through the three-dimensional design of the underground construction borehole, the actual geological information of the borehole is entered, the real spatial distribution of the coal seam of each borehole is reversed, and the stratum is reconstructed according to the information such as the position and thickness of the coal seam, and the boundary of the rock layer, and the fault and other geological data are analyzed. Structural anomalies are predicted to provide guidance for roadway excavation safety production, and pre-treatment of structural anomalies occurs to ensure construction safety.
Description
技术领域technical field
本发明涉及井下开采技术，尤其涉及一种井下巷道钻孔施工及地质信息反演方法。The invention relates to underground mining technology, in particular to an underground roadway drilling construction and geological information inversion method.
背景技术Background technique
煤矿井下巷道中施工的抽排及勘探钻孔种类较多，主要为煤层瓦斯抽放、地质构造探查、排放水等功用。目前钻孔通常采用盲钻方式，不知道前方煤层的实际状况，通常钻孔施工过程中会遇到地质构造等异常，钻孔的真实轨迹、见煤信息与设计钻孔会存在一定的变化，目前，钻孔设计均为平剖面表达方式，其多组钻孔控制时信息交叉，对设计与施工单位的参考作用有限，且根据钻孔揭露地质信息对地质构造及其异常的预报功能不足，地质技术的预报能力较低。There are many types of drainage and exploration drilling in coal mine underground roadway, mainly for coal seam gas drainage, geological structure exploration, water discharge and other functions. At present, blind drilling is usually used for drilling, and the actual situation of the coal seam in front is unknown. Usually, abnormal geological structures and other abnormalities will be encountered during the drilling construction process. At present, the borehole design is expressed in the form of a flat section, and the information of multiple groups of boreholes is crossed during control, which has limited reference to the design and construction units, and the geological information revealed by the boreholes has insufficient prediction function for the geological structure and its anomalies. The predictive power of geological techniques is low.
发明内容Contents of the invention
本发明提供一种井下巷道钻孔施工及地质信息反演方法，用于克服现有技术中的缺陷，提高钻孔揭露地质信息对地质构造及其异常的预报功能，提高地质技术的预报能力，为巷道掘进单位安全生产提供指导，对出现构造异常位置进行先期处理，保障施工安全。The present invention provides a drilling construction and geological information inversion method in an underground roadway, which is used to overcome the defects in the prior art, improve the prediction function of the geological information revealed by the drilling on the geological structure and its abnormality, and improve the prediction ability of geological technology. Provide guidance for the safe production of roadway excavation units, and carry out preliminary treatment of structural abnormalities to ensure construction safety.
本发明提供一种井下巷道钻孔施工及地质信息反演方法，包括以下步骤：The invention provides a drilling construction and geological information inversion method for an underground roadway, which includes the following steps:
步骤1），在三维坐标系中根据预测值建立煤层地质模型；Step 1), establish a coal seam geological model according to the predicted value in the three-dimensional coordinate system;
步骤2），在三维坐标系中预先设置顺层巷道及至少一排钻孔；Step 2), pre-setting the bedding roadway and at least one row of drill holes in the three-dimensional coordinate system;
步骤3），按照上述预设情况进行钻探，在钻探过程中获得一系列地质信息；Step 3), drilling according to the above preset conditions, and obtaining a series of geological information during the drilling process;
步骤4），根据上述地质信息在三维坐标系中反演和修正煤层地质模型；Step 4), inverting and correcting the coal seam geological model in the three-dimensional coordinate system according to the above geological information;
步骤5），根据修正后的煤层地质模型在三维坐标系中修正顺层巷道走向及钻孔走向；Step 5), according to the revised coal seam geological model in the three-dimensional coordinate system to correct the direction of the bedding roadway and the borehole;
步骤6），根据修正后地质模型进行巷道掘进，以及下一轮钻孔施工。Step 6), carry out roadway excavation and next round of drilling construction according to the revised geological model.
本发明提供的井下巷道钻孔施工及地质信息反演方法，通过对井下施工钻孔的三维设计，录入钻孔实见地质信息，进一步反演出每一钻孔煤层真实的空间分布形态，并根据煤层位置及厚度、岩层分界等信息重构控制区域内的地层及构造特征，对可能存在的断层等地质构造异常提出预测，形成一套完整的钻孔设计、输出、地质反演及预报的方法技术，为巷道掘进施工单位安全生产提供指导，对出现构造异常位置进行先期处理，保障施工安全。The underground roadway drilling construction and geological information inversion method provided by the present invention, through the three-dimensional design of the underground construction drilling, enters the actual geological information of the drilling, and further inverts the real spatial distribution of each drilling coal seam, and according to Coal seam position and thickness, rock boundary and other information reconstruct the stratum and structural characteristics in the control area, predict possible faults and other geological structural anomalies, and form a complete set of drilling design, output, geological inversion and forecasting methods This technology provides guidance for the safe production of roadway excavation construction units, and pre-processes the locations where structural abnormalities occur to ensure construction safety.
附图说明Description of drawings
图1为本发明实施例提供的顺层巷道钻孔的断面示意图；Fig. 1 is the schematic cross-sectional view of the bedding roadway drilling provided by the embodiment of the present invention;
图2为图1中沿A-A向剖视图；Fig. 2 is a sectional view along A-A in Fig. 1;
图3为图1中沿B-B向剖视图；Fig. 3 is a sectional view along B-B in Fig. 1;
图4为修正后的顺层巷道立体示意图；Figure 4 is a three-dimensional schematic diagram of the amended bedding roadway;
图5为本发明实施例提供的高抽巷道钻孔的立体示意图；Fig. 5 is a three-dimensional schematic diagram of a high-draft roadway drilling provided by an embodiment of the present invention;
图6为本发明实施例提供的底抽巷道钻孔的立体示意图。Fig. 6 is a three-dimensional schematic view of the bottom-drawing roadway drilling provided by the embodiment of the present invention.
具体实施方式Detailed ways
实施例一Embodiment one
图1为本发明实施例提供的顺层巷道钻孔的断面示意图；图2为图1中沿A-A向剖视图；图3为图1中沿B-B向剖视图；图4为修正后的顺层巷道立体示意图；如图1-4所示，本发明实施例提供一种井下巷道钻孔施工及地质信息反演方法，包括以下步骤：Fig. 1 is a schematic cross-sectional view of a bedding roadway drilled in an embodiment of the present invention; Fig. 2 is a sectional view along the A-A direction in Fig. 1; Fig. 3 is a sectional view along the B-B direction in Fig. 1; Fig. 4 is a three-dimensional view of the bedding roadway after correction Schematic diagram; as shown in Figures 1-4, the embodiment of the present invention provides a method for underground roadway drilling construction and geological information inversion, including the following steps:
步骤1），在三维坐标系中根据预测值建立煤层地质模型1；Step 1), establish a coal seam
步骤2），在三维坐标系中预先设置顺层巷道2及至少一排钻孔3；Step 2), pre-setting the
步骤3），按照上述预设情况进行钻探，在钻探过程中获得一系列地质信息；Step 3), drilling according to the above preset conditions, and obtaining a series of geological information during the drilling process;
步骤4），根据上述地质信息在三维坐标系中反演和修正煤层地质模型1；Step 4), inverting and correcting the coal seam
步骤5），根据修正后的煤层地质模型在三维坐标系中修正顺层巷道走向及钻孔走向，修正后的煤层地质模型为2’，如图4所示；Step 5), according to the revised coal seam geological model, correct the direction of the bedding roadway and the drilling direction in the three-dimensional coordinate system, and the revised coal seam geological model is 2', as shown in Figure 4;
步骤6），根据修正后地质模型2’进行巷道掘进，以及下一轮钻孔施工。Step 6), according to the revised geological model 2', carry out roadway excavation, and the next round of drilling construction.
本发明提供的井下巷道钻孔施工及地质信息反演方法，通过对井下施工钻孔的三维设计，录入钻孔实见地质信息，进一步反演出每一钻孔煤层真实的空间分布形态，并根据煤层位置及厚度、岩层分界等信息重构控制区域内的地层及构造特征，对可能存在的断层等地质构造异常提出预测，形成一套完整的钻孔设计、输出、地质反演及预报的方法技术，为巷道掘进单位安全生产提供指导，对出现构造异常位置进行先期处理，保障施工安全。The underground roadway drilling construction and geological information inversion method provided by the present invention, through the three-dimensional design of the underground construction drilling, enters the actual geological information of the drilling, and further inverts the real spatial distribution of each drilling coal seam, and according to Coal seam position and thickness, rock boundary and other information reconstruct the stratum and structural characteristics in the control area, predict possible faults and other geological structural anomalies, and form a complete set of drilling design, output, geological inversion and forecasting methods This technology provides guidance for the safe production of roadway excavation units, and pre-processes the locations where structural abnormalities occur to ensure construction safety.
本发明在具体实施过程中，可根据井下不同巷道条件施工钻孔技术要求，进行三维地质模型构建，并立体表达各个钻孔的参数特征及赋存形态，可以完成煤层巷道顺层施工钻孔设计，以及高抽巷道、底抽巷道和石门揭煤巷道的三维设计与调整。对设计钻孔条件进行平面图、剖面图、位置图的输出，直接为施工单位提供技术指导与使用。根据每一钻孔现场施工所揭露的地质信息，录入钻孔的轨迹数据、见煤点位置数据、出水点位置、水温等参数，修正原设计钻孔参数结果并重新进行三维煤层地质模型的构建与表达，因此，需要对施工钻孔的三维空间特征进行有效描述表达，结合实际钻孔施工过程中揭露的地质信息，精确地分析与控制探测区域前方的地质条件，为煤矿地质与施工部门提供可靠的地质技术参数。根据煤层位置及厚度等实揭数据修正钻孔的设计参数，对煤厚非突变点进行连接，在人工交互基础上对煤层的非连续点进行控制，设置出判断构造、地质异常体等非煤层位置，实现对前方钻孔控制区域的地质信息反演，获得真实的地质条件形态。根据地质反演结果，对钻孔真实轨迹条件下的地质信息进行输出，提供钻孔勘探地质资料，进一步综合确定剖面内岩层及构造特征，提交综合成果图，为巷道掘进单位安全生产提供指导，对出现构造位置进行先期处理，保障施工安全。In the specific implementation process of the present invention, the three-dimensional geological model can be constructed according to the technical requirements of construction drilling under different roadway conditions in the mine, and the parameter characteristics and occurrence forms of each drilling hole can be three-dimensionally expressed, and the drilling design of the coal seam roadway along the layer can be completed. , as well as the three-dimensional design and adjustment of the high pumping roadway, the bottom pumping roadway and the Shimen coal mining roadway. Output the plan view, section view and position map of the designed drilling conditions, and directly provide technical guidance and use for the construction unit. According to the geological information revealed by the construction of each drilling site, enter the drilling trajectory data, the position data of the coal spot, the position of the water outlet point, the water temperature and other parameters, correct the results of the original design drilling parameters and re-construct the three-dimensional coal seam geological model Therefore, it is necessary to effectively describe and express the three-dimensional space characteristics of the construction borehole, combine the geological information revealed during the actual drilling construction process, accurately analyze and control the geological conditions in front of the detection area, and provide coal mine geology and construction departments Reliable geological technical parameters. Correct the design parameters of the borehole according to the actual data such as the location and thickness of the coal seam, connect the non-abrupt points of the coal thickness, control the discontinuous points of the coal seam on the basis of manual interaction, and set up non-coal seams such as judging structures and geological anomalies position, realize the inversion of geological information in the control area of the drilling ahead, and obtain the real geological conditions. According to the geological inversion results, the geological information under the condition of the real drilling trajectory is output, the drilling exploration geological data is provided, the rock formation and structural characteristics in the section are further comprehensively determined, and the comprehensive result map is submitted to provide guidance for the safe production of the roadway excavation unit. Preliminary processing is carried out on the location of the structure to ensure construction safety.
本发明通过对井下施工钻孔的三维设计，录入钻孔实见地质信息，包括对钻孔轨迹参数、见煤位置、钻孔瓦斯参数、出水点位及温度等孔中实见信息的录入，进一步反演出每一钻孔岩煤层真实的空间分布形态，并根据煤层位置及厚度、岩层分界等信息重构控制区域内的地层及构造特征，对可能存在的地质构造等异常提出预测，形成一套完整的钻孔设计、输出、地质反演及预报的方法技术，其成果可为矿井地质及抽排施工提供有效的技术服务。Through the three-dimensional design of the borehole for underground construction, the present invention enters the actual geological information of the borehole, including the input of the actual information in the borehole such as the parameters of the borehole trajectory, the location of the coal, the gas parameters of the borehole, the water outlet point and the temperature, etc. Further invert the true spatial distribution of rock and coal seams in each drill hole, and reconstruct the stratum and structural characteristics in the control area according to information such as the position and thickness of the coal seam and the boundary of the rock strata, and predict the possible geological structure and other anomalies, forming a A complete set of methods and technologies for drilling design, output, geological inversion and prediction, the results of which can provide effective technical services for mine geology and drainage construction.
上述的地质信息包括钻孔轨迹数据、揭露的煤层位置数据、出水点位置和水温。The aforementioned geological information includes drilling trajectory data, exposed coal seam location data, water outlet location and water temperature.
步骤4）包括以下步骤：Step 4) includes the following steps:
步骤41），将所有钻孔揭露的煤层位置数据录入三维坐标系中并进行平滑处理，形成相应的见煤线；Step 41), enter the coal seam position data exposed by all drilling holes into the three-dimensional coordinate system and perform smoothing processing to form the corresponding coal penetration line;
步骤42），对每排钻孔揭露的煤层位置信息进行拟合得出实际煤层位置及厚度；Step 42), fitting the coal seam position information revealed by each row of boreholes to obtain the actual coal seam position and thickness;
步骤43），在三维地质模型中重新构架各钻孔实见地层信息，对煤层面的空间形态进行描述，形成煤层空间赋存状态。煤层面的空间形态包括煤层面的形状以及在三维坐标系中的位置，煤层空间赋存状态包括煤层在三维坐标系中的形状以及位置。Step 43), in the three-dimensional geological model, reconstruct the actual formation information of each borehole, describe the spatial form of the coal seam, and form the spatial occurrence state of the coal seam. The spatial form of the coal seam includes the shape and position of the coal seam in the three-dimensional coordinate system, and the spatial occurrence state of the coal seam includes the shape and position of the coal seam in the three-dimensional coordinate system.
本发明通过构建井下巷道施工的四种最主要钻孔地层模型，根据井下施工的钻孔特征，将其分为巷道顺层钻孔、高抽巷道钻孔、底抽巷道钻孔和石门揭煤巷道钻孔，对单孔及群孔进行三维辅助设计，结合钻孔施工所揭露的地质信息录入，对钻孔空间形态及其控制范围的煤岩条件进行反演与表达，在人工交互条件下对钻孔揭示区域地质构造等异常条件进行预测，并输出各类钻孔赋存状态的平面和剖面图，直接为矿井安全生产提供技术参数。上述实施例适用于巷道顺层钻孔，其中巷道顺层钻孔为掩护式交叉前探孔，通过设计一排或多排钻孔实现对就方煤岩层位置的探查与控制，具体参见实施例一。The present invention constructs the four most important drilling stratum models for underground roadway construction, and divides them into roadway bedding drilling, high-drawing roadway drilling, bottom-drawing roadway drilling and Shimen coal uncovering according to the drilling characteristics of underground construction. Roadway drilling, 3D auxiliary design of single hole and group of holes, combined with the input of geological information revealed by drilling construction, inversion and expression of the spatial form of the drilling and the coal and rock conditions in the control range, and the drilling Predict the abnormal conditions such as regional geological structure revealed by drilling holes, and output the plane and section diagrams of the occurrence status of various drilling holes, directly providing technical parameters for mine safety production. The above-mentioned embodiments are applicable to the bedding drilling of the roadway, wherein the bedding drilling of the roadway is a cover type cross-front exploration hole, and the detection and control of the position of the square coal rock layer can be realized by designing one or more rows of drilling holes. For details, refer to the embodiment one.
实施例二Embodiment two
在实施例一的基础上，如图5、图6所示，步骤1）与步骤2）之间还包括以下步骤：On the basis of
步骤11），在煤层地质模型1中预计巷道4方位；Step 11), predicting the orientation of the
步骤12），在煤层工作面上方或下方的施工巷道5中布置钻窝6位置；Step 12), arranging the position of the
步骤13），设置高抽巷道钻孔7或底抽巷道钻孔8方位；Step 13), setting the orientation of drilling 7 in the high-drawing roadway or drilling 8 in the bottom-drawing roadway;
步骤14），按照预定方位实施高抽巷道钻孔7或底抽巷道钻孔8。Step 14), carry out high-drawing roadway drilling 7 or bottom-drawing roadway drilling 8 according to the predetermined azimuth.
作为上述实施例的优选实施方式，高抽巷钻孔或底抽巷钻孔分布在预设煤层巷道两侧15米左右的宽度范围内，优选0-15米。通过钻孔将这个范围的瓦斯进行释放，能够满足巷道的安全施工。As a preferred implementation of the above-mentioned embodiment, the boreholes of the high extraction roadway or the bottom extraction roadway are distributed within a width range of about 15 meters on both sides of the preset coal seam roadway, preferably 0-15 meters. The gas in this range is released by drilling, which can satisfy the safety construction of the roadway.
高抽巷道钻孔，是在煤层工作面上方施工巷道中钻窝进行打钻，目的是对下伏煤层中的瓦斯进行抽放释压；底抽巷道钻孔，是在煤层工作面下方施工巷道中打钻，向上穿层抽放煤层卸压瓦斯，以及抽排放底板含水层中水。步骤11）-步骤14）适用于高抽巷道钻孔和底抽巷道钻孔。High-drawing roadway drilling is to drill holes in the construction roadway above the coal seam working face, the purpose is to release the pressure of the gas in the underlying coal seam; bottom-drawing roadway drilling is to drill the construction roadway below the coal seam working face Drilling in the middle, pumping the coal seam pressure relief gas upward through the seam, and pumping and discharging the water in the aquifer of the floor. Step 11) - Step 14) are applicable to high-draft tunnel drilling and bottom-draft tunnel drilling.
巷道顺层布钻设计中首先导入顺层巷道，根据三维模型结果修改巷道或煤层块的长度和宽度；再根据实际需要增加或减少顺层钻孔。可以是单排也可以是多排孔，根据钻孔在巷道断面、帮上位置参数进行设计施工，而高抽巷道钻孔和底抽巷道钻孔在开钻前均需针对煤层中的瓦斯进行抽放释压，通过对煤层及巷道断面位置控制，先固定煤层位置，再设计开钻钻窝位置，按设计方位进行钻孔布置。In the design of roadway bedding drilling, the bedding roadway is first imported, and the length and width of the roadway or coal seam block are modified according to the 3D model results; then bedding holes are increased or decreased according to actual needs. It can be a single row or multiple rows of holes, and the design and construction are carried out according to the position parameters of the drilling section and the side of the roadway. However, the drilling of the high-drawing roadway and the drilling of the bottom-drawing roadway need to be carried out for the gas in the coal seam before drilling. For pumping and pressure relief, by controlling the position of the coal seam and the section of the roadway, the position of the coal seam is fixed first, and then the position of the drilling hole is designed, and the drilling arrangement is carried out according to the design orientation.
录入各个钻孔打钻过程中实际揭露煤岩层地质信息数据，修正设计钻孔。针对四种类型巷道设计钻孔，根据现场钻探施工台账中记录的钻孔轨迹数据、揭露的煤岩层位置数据、出水点位置、水温等参数进行录入。利用表格直接录入和文件导入两种形式，对原设计钻孔揭露的轨迹、层位等参数进行合理修正，重点是标示出钻孔揭露的见煤信息点，控制煤层的实际位置。Input the geological information data of coal and rock formations actually revealed during the drilling process of each drilling hole, and correct the designed drilling holes. Drilling is designed for four types of roadways, and input is made according to the drilling trajectory data recorded in the on-site drilling construction ledger, the position data of the exposed coal and rock layers, the position of the water outlet point, and the water temperature. Using the two forms of direct table entry and file import, reasonable corrections are made to the parameters such as the trajectory and horizon exposed by the original design drilling.
钻孔控制区域地质条件反演。对录入的煤岩层位置数据进行预处理，重点对揭露煤层位置点数据进行平滑处理，形成相应的见煤线。对于多排钻孔揭露煤层位置信息拟合出实际煤层位置及厚度，在三维地质模型中反演重构各个钻孔实见地层信息，对煤层面的空间形态进行表达，形成煤层空间赋存状态。设定煤层不连续判断标准，并对于出现煤层非连续断点进行人工交互，根据多个钻孔揭露煤层的控制，重点是对煤层中可能存在的断层等前方地质条件进行判断与预测，为巷道或工作面安全生产提供合理的判断技术参数。Borehole controlled inversion of regional geological conditions. Preprocess the input coal seam location data, and focus on smoothing the exposed coal seam location point data to form the corresponding coal penetration line. For multiple rows of drill holes to expose the coal seam position information, the actual coal seam position and thickness are fitted, and the actual stratum information of each drill hole is reconstructed in the 3D geological model, and the spatial form of the coal seam is expressed to form the spatial occurrence state of the coal seam . Set the coal seam discontinuity judgment standard, and carry out manual interaction for the coal seam discontinuity breakpoint, according to the control of multiple drilling holes to expose the coal seam. Or provide reasonable technical parameters for judging the safety production of the working face.
钻孔设计与地质反演结果的空间表达和平面输出。根据钻孔设计三维地质模型结果，对煤层、巷道及钻孔位置进行准确控制，判断和调整钻孔设计的参数达到设计技术要求，可直接对设计结果进行钻孔单孔或多孔设计的平面、剖面图的表达与输出，为钻孔施工单位所使用。巷道顺层钻孔多排钻孔设计平面输出，钻孔排控制前方巷道两边各为15m，每一排根据需要可设计若干个钻孔，通常共设计五个钻孔左右。Spatial representation and planar output of borehole design and geological inversion results. According to the results of the three-dimensional geological model of drilling design, the coal seam, roadway and drilling position can be accurately controlled, and the parameters of drilling design can be judged and adjusted to meet the design technical requirements. The expression and output of the section diagram are used by the drilling construction unit. The roadway is drilled along the bedding. The design plane output of multiple rows of drill holes is output. The drill row control is 15m on both sides of the roadway in front. Each row can design several drill holes according to the needs, usually about five drill holes in total.
根据巷道中钻孔设计完成井下现场施工后，在地质反演基础上形成钻探控制区域的重建地质模型，包括各个钻孔的真实轨迹、煤岩等信息，结果确认后根据调整的煤岩层特征，直接输出结果剖面。同时对预测存在的断层构造进行表达，为巷道掘进及工作面回采等后续工作提供技术参考。附图4为煤层巷道顺层钻孔控制区域内地质反演后的地质剖面，其中可见因煤层不连续预测出的断层位置。After the underground construction is completed according to the drilling design in the roadway, the reconstruction geological model of the drilling control area is formed on the basis of geological inversion, including the real trajectory of each drilling hole, coal and rock information, and after the results are confirmed, according to the adjusted coal and rock characteristics, Output the resulting profile directly. At the same time, the predicted fault structure is expressed to provide technical reference for follow-up work such as roadway excavation and working face mining. Accompanying drawing 4 is the geological cross-section after geological inversion in the control area of the coal seam roadway along the bedding, in which the position of the fault predicted due to the discontinuity of the coal seam can be seen.
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.
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