CN110241870A - Layout method of foundation pit excavation monitoring system and foundation pit excavation monitoring system - Google Patents
Layout method of foundation pit excavation monitoring system and foundation pit excavation monitoring system Download PDFInfo
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Abstract
本发明属于土木工程技术领域,尤其涉及一种基坑开挖监测系统的布置方法以及基坑开挖监测系统,本发明提供了一种基坑开挖监测系统的布置方法,包括:建立基坑场地工程地质概化模型;建立基坑工程开挖响应分析计算模型;对基坑开挖响应进行仿真模拟;根据仿真模拟结果对开挖变形环境影响范围进行划分、对所述支护结构最大受力部位进行定位;在所述基坑坑壁布设至少一个基坑开挖响应数据采集装置;设置数据汇集传输装置。本发明提供的基坑开挖监测系统的布置方法以基坑场地工程地质概化模型、基坑工程开挖响应分析计算模型为基础,依据仿真模拟结果确定基坑开挖响应数据采集装置的设置点,可以准确地定位危险点,提高了系统数据采集和分析的准确性。
The invention belongs to the technical field of civil engineering, and in particular relates to a method for arranging a foundation pit excavation monitoring system and a foundation pit excavation monitoring system. The invention provides a method for arranging a foundation pit excavation monitoring system, including: establishing a foundation pit The generalized model of site engineering geology; the establishment of the excavation response analysis and calculation model of the foundation pit; the simulation of the excavation response of the foundation pit; the division of the impact range of the excavation deformation environment according to the simulation results, and the maximum impact on the support structure Positioning the force part; laying at least one foundation pit excavation response data acquisition device on the foundation pit wall; setting a data collection and transmission device. The layout method of the foundation pit excavation monitoring system provided by the present invention is based on the generalized model of the engineering geology of the foundation pit site and the analysis and calculation model of the excavation response of the foundation pit engineering, and determines the setting of the foundation pit excavation response data acquisition device according to the simulation simulation results Points can accurately locate dangerous points, improving the accuracy of system data collection and analysis.
Description
技术领域technical field
本发明属于土木工程技术领域,尤其涉及一种基坑开挖监测系统的布置方法以及基坑开挖监测系统。The invention belongs to the technical field of civil engineering, and in particular relates to an arrangement method of a foundation pit excavation monitoring system and a foundation pit excavation monitoring system.
背景技术Background technique
基坑是在基础设计位置按基底标高和基础平面尺寸所开挖的土坑。开挖前应根据地质水文资料,结合现场附近建筑物情况,确定开挖方案,并作好防水排水工作。The foundation pit is an earth pit excavated at the foundation design position according to the base level and foundation plane size. Before excavation, the excavation plan should be determined according to the geological and hydrological data, combined with the conditions of the buildings near the site, and the waterproof and drainage work should be done well.
为做到深基坑开挖响应的全程监控,控制施工过程的风险,需在基坑周边建筑物、地铁隧道等处布置多种类型的监测项目,主要包括坑壁侧向变形观测、基坑支撑内力监测、周边土体沉降观测、建筑物和隧道变形观测等。In order to monitor the response of deep foundation pit excavation and control the risks in the construction process, it is necessary to arrange various types of monitoring items in the buildings around the foundation pit, subway tunnels, etc., mainly including the lateral deformation observation of the pit wall, foundation pit Support internal force monitoring, surrounding soil settlement observation, building and tunnel deformation observation, etc.
现有的基坑工程开挖响应监测大多根据施工人员的实际操作经验确定监测点,这种方式得到的监测点与实际工程的危险点或者关键点往往存在较大的偏差,使得系统无法采集到关键数据,降低了系统分析的准确性。The existing excavation response monitoring of foundation pit engineering mostly determines the monitoring points based on the actual operation experience of the construction personnel. There is often a large deviation between the monitoring points obtained in this way and the dangerous points or key points of the actual project, making it impossible for the system to collect Critical data reduces the accuracy of system analysis.
发明内容Contents of the invention
本发明实施例的目的在于提供一种基坑开挖监测系统的布置方法,旨在解决现有的基坑工程开挖响应监测大多根据施工人员的实际操作经验确定监测点,这种方式得到的监测点与实际工程的危险点或者关键点往往存在较大的偏差,使得系统无法采集到关键数据,降低了系统分析的准确性的问题。The purpose of the embodiment of the present invention is to provide a layout method of the foundation pit excavation monitoring system, aiming at solving the problem that the existing foundation pit engineering excavation response monitoring mostly determines the monitoring points according to the actual operation experience of the construction personnel. There is often a large deviation between the monitoring point and the dangerous point or key point of the actual project, which makes the system unable to collect key data and reduces the accuracy of system analysis.
本发明实施例是这样实现的,一种基坑开挖监测系统的布置方法,所述方法包括以下步骤:The embodiment of the present invention is achieved in this way, a method for arranging a foundation pit excavation monitoring system, the method includes the following steps:
根据工程地质、水文地质勘察数据和基坑开挖设计数据建立基坑场地工程地质概化模型;Establish a generalized engineering geological model of the foundation pit site based on engineering geology, hydrogeological survey data and foundation pit excavation design data;
根据基坑支护结构数据以及所述基坑场地工程地质概化模型建立基坑工程开挖响应分析计算模型;Establishing a foundation pit engineering excavation response analysis and calculation model according to the foundation pit support structure data and the engineering geological generalization model of the foundation pit site;
根据所述基坑工程开挖响应分析计算模型以及基坑的岩土体物理力学参数、水力学参数和所述支护结构的物理力学参数,对基坑开挖响应进行仿真模拟;According to the analysis and calculation model of the excavation response of the foundation pit engineering and the physical and mechanical parameters of the rock and soil mass of the foundation pit, the hydraulic parameters and the physical and mechanical parameters of the support structure, the excavation response of the foundation pit is simulated;
根据仿真模拟结果对开挖变形环境影响范围进行划分、对所述支护结构最大受力部位进行定位;According to the simulation results, the scope of influence of the excavation deformation environment is divided, and the maximum force-bearing part of the support structure is positioned;
根据所述开挖变形环境影响范围的划分结果以及所述支护结构最大受力部位的定位结果,在所述基坑坑壁布设至少一个基坑开挖响应数据采集装置;According to the division result of the scope of influence of the excavation deformation environment and the positioning result of the maximum stressed part of the support structure, at least one foundation pit excavation response data acquisition device is arranged on the wall of the foundation pit;
设置数据汇集传输装置,所述数据汇集传输装置与所述基坑开挖响应数据采集装置连接,用于汇总采集到的基坑开挖响应数据并发送给客户端和/或服务器。A data collection and transmission device is provided, and the data collection and transmission device is connected to the foundation pit excavation response data collection device for summarizing the collected foundation pit excavation response data and sending it to the client and/or server.
本发明实施例的另一目的在于提供一种基坑开挖监测系统,所述系统包括:Another object of the embodiments of the present invention is to provide a foundation pit excavation monitoring system, the system comprising:
至少一个基坑开挖响应数据采集装置,所述基坑开挖响应数据采集装置的位置按照权利要求1所述的方法确定;以及At least one foundation pit excavation response data collection device, the position of the foundation pit excavation response data collection device is determined according to the method described in claim 1; and
数据汇集传输装置,所述数据汇集传输装置与所述基坑开挖响应数据采集装置连接,用于汇总采集到的基坑开挖响应数据并发送给客户端和/或服务器;A data collection and transmission device, the data collection and transmission device is connected to the foundation pit excavation response data acquisition device, and is used to summarize the collected foundation pit excavation response data and send it to the client and/or server;
所述客户端和/或服务器,与所述数据汇集传输装置通信,用于基坑开挖响应的远程监控。The client and/or server communicate with the data collection and transmission device for remote monitoring of foundation pit excavation response.
本发明实施例提供的基坑开挖监测系统的布置方法,以基坑工程开挖响应分析计算模型为基础,利用基坑的岩土体物理力学参数、水力学参数和所述支护结构的物理力学参数,对基坑开挖响应进行仿真模拟从而确定支护结构的最大受力部位,通过在确定出的最大受力部位设置基坑开挖响应数据采集装置可以采集到工程的危险点或者关键点的响应数据,从而提高了系统数据采集以及分析的准确性,有利于保证施工安全。The layout method of the foundation pit excavation monitoring system provided by the embodiment of the present invention is based on the analysis and calculation model of the excavation response of the foundation pit engineering, and utilizes the physical and mechanical parameters of the rock and soil body of the foundation pit, the hydraulic parameters and the parameters of the support structure. Physical and mechanical parameters, simulate the excavation response of the foundation pit to determine the maximum force-bearing part of the support structure, and set the foundation pit excavation response data acquisition device at the determined maximum force-bearing position to collect the dangerous points of the project or The response data of key points improves the accuracy of system data collection and analysis, which is conducive to ensuring construction safety.
附图说明Description of drawings
图1为本发明实施例提供的一种基坑开挖监测系统的布置方法的流程图;Fig. 1 is a flowchart of an arrangement method of a foundation pit excavation monitoring system provided by an embodiment of the present invention;
图2为本发明实施例提供的基坑场地工程地质概化模型;Fig. 2 is the generalized model of foundation pit site engineering geology provided by the embodiment of the present invention;
图3为本发明实施例提供的基坑支护结构示意图;Fig. 3 is the schematic diagram of foundation pit supporting structure provided by the embodiment of the present invention;
图4为开挖变形影响区域分布短边剖面示意图;Figure 4 is a schematic diagram of the short-side section of the distribution of the excavation deformation affected area;
图5为开挖变形影响区域分布长边剖面示意图;Figure 5 is a schematic diagram of the long side section of the distribution of excavation deformation affected areas;
图6为基坑支护结构受力示意图;Figure 6 is a schematic diagram of the force of the foundation pit support structure;
图7为基坑监测平面布置图;Fig. 7 is the layout plan of foundation pit monitoring;
图8为本发明实施例提供的一种基坑开挖监测系统的布置系统的结构图。Fig. 8 is a structural diagram of an arrangement system of a foundation pit excavation monitoring system provided by an embodiment of the present invention.
具体实施方式Detailed ways
为了使本发明的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
可以理解,本申请所使用的术语“第一”、“第二”等可在本文中用于描述各种元件,但除非特别说明,这些元件不受这些术语限制。这些术语仅用于将第一个元件与另一个元件区分。举例来说,在不脱离本申请的范围的情况下,可以将第一xx脚本称为第二xx脚本,且类似地,可将第二xx脚本称为第一xx脚本。It can be understood that the terms "first", "second" and the like used in the present application may be used to describe various elements herein, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, a first xx script could be termed a second xx script, and, similarly, a second xx script could be termed a first xx script, without departing from the scope of the present application.
图1示出了本发明一个实施例提供的一种基坑开挖监测系统的布置方法的流程图,具体可以包括步骤S102~步骤S112。Fig. 1 shows a flow chart of an arrangement method of a foundation pit excavation monitoring system provided by an embodiment of the present invention, which may specifically include steps S102 to S112.
步骤S102,根据工程地质、水文地质勘察数据和基坑开挖设计数据建立基坑场地工程地质概化模型。Step S102, establishing a generalized engineering geological model of the foundation pit site according to the engineering geology, hydrogeological survey data and foundation pit excavation design data.
在本发明实施例中,如图2所示,工程地质数据包括但不限于施工场地的地质结构、地貌、土和岩石的物理性质、自然地质现象、天然建筑材料等;水文地质勘查数据包括但不限于地下以及地表水的分布、成因以及运动规律等数据;基坑开挖设计数据包括基坑的位置坐标,长、宽以及深度方向的尺寸等。In the embodiment of the present invention, as shown in Figure 2, the engineering geological data include but not limited to the geological structure of the construction site, topography, physical properties of soil and rock, natural geological phenomena, natural building materials, etc.; hydrogeological survey data include but It is not limited to the distribution, origin and movement rules of underground and surface water; the design data of foundation pit excavation includes the position coordinates of the foundation pit, the dimensions of length, width and depth, etc.
在本发明实施例中,概化模型即依据概化理论建立的模型,忽略了一些对结果影响较小的因素。基坑场地工程地质概化模型即依据概化理论建立的基坑施工场地的模型,其具体的建立过程以及使用的工具为本领域技术人员熟知,对本发明实施例对此不再赘述。In the embodiment of the present invention, the generalized model is a model established according to the generalized theory, ignoring some factors that have little influence on the result. The engineering geological generalized model of the foundation pit site is the model of the foundation pit construction site established according to the generalization theory. Its specific establishment process and tools used are well known to those skilled in the art, and will not be repeated in the embodiments of the present invention.
在本发明实施例中,基坑场地工程地质概化模型至少包括土层结构模型以及在土层结构模型上表示出的基坑开挖区。土层结构模型示出了土层在垂直方向上的分布情况以及开挖区域的相对位置以及尺寸,此为基坑场地工程地质概化模型的必要元素。此外,视具体开挖现场的情况,基坑场地工程地质概化模型还可以包括在土层结构模型上表示出的建筑物作用区域、地铁隧道、湖泊、山丘中的一种或多种,对于基坑开挖而言,除了土层地质结构之外,湖泊、山丘等地形特征也会对基坑开响应产生影响。此外,人工设施对基坑的开挖同样会带来较大的影响,特别是地城区进行开挖时,基坑周边建筑物的影响不可忽略。In the embodiment of the present invention, the generalized engineering geological model of the foundation pit site at least includes a soil layer structure model and a foundation pit excavation area represented on the soil layer structure model. The soil layer structure model shows the distribution of the soil layer in the vertical direction and the relative position and size of the excavation area, which is a necessary element of the engineering geological generalization model of the foundation pit site. In addition, depending on the specific excavation site conditions, the generalized engineering geological model of the foundation pit site may also include one or more of the building action area, subway tunnel, lake, and hill represented on the soil layer structure model, For foundation pit excavation, in addition to the geological structure of the soil layer, topographic features such as lakes and hills will also affect the response of foundation pit excavation. In addition, artificial facilities will also have a greater impact on the excavation of the foundation pit, especially when excavating in underground areas, the impact of the surrounding buildings on the foundation pit cannot be ignored.
在本发明实施例中,工程地质、水文地质勘察数据和基坑开挖设计数据是在工程设计规划阶段已经确定的数据,其来源可以是从施工场地现场采集、利用采集到的样本分析得出、利用软件模拟计算得出等,本发明实施例对于各项数据的具体来源不作具体限定。由于上述各类数据是基坑开挖工程必然涉及的,从数据来源上看,本发明的使用并不会增加工程规划、设计的负担,通过对现有数据的充分利用可以为工程的安全进行提供保障。In the embodiment of the present invention, engineering geology, hydrogeological survey data and foundation pit excavation design data are data that have been determined in the engineering design and planning stage, and their sources can be obtained from the on-site collection of the construction site and the analysis of the collected samples. , calculated by using software simulation, etc., the embodiment of the present invention does not specifically limit the specific source of each data. Since the above-mentioned various types of data are necessarily involved in the excavation project of the foundation pit, from the perspective of data sources, the use of the present invention will not increase the burden of engineering planning and design, and the safety of the project can be improved by making full use of the existing data. provide assurance.
在本发明实施例中,作为一种可以实现的具体方式,基坑开挖设计数据可以来源于Autocad设计图纸;工程地质概化模型可以使用ANSYS软件建立。In the embodiment of the present invention, as a specific way that can be realized, the foundation pit excavation design data can be derived from the Autocad design drawings; the engineering geological generalization model can be established using ANSYS software.
步骤S104,根据基坑支护结构数据以及所述基坑场地工程地质概化模型建立基坑工程开挖响应分析计算模型。Step S104, establishing a foundation pit engineering excavation response analysis and calculation model according to the foundation pit support structure data and the generalized engineering geological model of the foundation pit site.
在本发明实施例中,如图3所示,基坑支护结构包括但不限于内支撑、立柱、支护桩、腰梁以及冠梁等结构。对于各结构的数量以及彼此之间的连接关系,本发明实施例不作具体限定,上述各结构均为基坑开挖过程中的常用支护结构,根据基坑的具体尺寸可以设计各结构之间的具体布置形式。在本发明实施例所述基坑支护结构数据包括各支护结构的材料、物理性质、尺寸、位置以及连接方式等,其基本要求是满足进行受力分析的需要。In the embodiment of the present invention, as shown in FIG. 3 , the foundation pit support structure includes but is not limited to structures such as internal supports, columns, support piles, waist beams, and crown beams. The embodiment of the present invention does not specifically limit the number of structures and the connection relationship between each other. The above-mentioned structures are commonly used support structures in the excavation process of foundation pits. specific layout. The foundation pit support structure data in the embodiment of the present invention includes the material, physical properties, size, position and connection mode of each support structure, and its basic requirement is to meet the needs of force analysis.
在本发明实施例中,基坑工程开挖响应分析计算模型为在基坑场地工程地质概化模型的基础上,增加基坑支护结构,同时考虑周边人工设施以及自然特征对基坑开挖响应的影响,通过模拟软件构建的模型。通过模型的方式模拟基坑开挖响应,可以在施工之前或者施工前期得到分析结果,从而指导施工的开展。In the embodiment of the present invention, the excavation response analysis and calculation model of the foundation pit is based on the generalized model of the engineering geology of the foundation pit site, adding the foundation pit support structure, and considering the surrounding artificial facilities and natural features to excavate the foundation pit. Response effects are modeled through simulation software. By simulating the excavation response of the foundation pit through the model, the analysis results can be obtained before construction or in the early stage of construction, so as to guide the construction.
在本发明实施例中,作为一种可以实现的具体方式,坑工程开挖响应分析计算模型可以在FLAC3D软件中建立。In the embodiment of the present invention, as a specific way that can be realized, the excavation response analysis calculation model of pit engineering can be established in FLAC3D software.
步骤S106,根据所述基坑工程开挖响应分析计算模型以及基坑的岩土体物理力学参数、水力学参数和所述支护结构的物理力学参数,对基坑开挖响应进行仿真模拟。In step S106, the excavation response of the foundation pit is simulated according to the analysis and calculation model of the excavation response of the foundation pit, the physical and mechanical parameters of the rock and soil body, the hydraulic parameters of the foundation pit, and the physical and mechanical parameters of the support structure.
在本发明实施例中,基坑的岩土体物理力学参数、水力学参数和所述支护结构的物理力学参数在基坑开挖前的规划设计中就已经确定,在进行模拟仿真时直接运用已有数据即可。对于仿真模拟运用的工具,本发明实施例不作具体限制。In the embodiment of the present invention, the physical and mechanical parameters and hydraulic parameters of the rock and soil mass of the foundation pit and the physical and mechanical parameters of the supporting structure have been determined in the planning and design before the excavation of the foundation pit, and they are directly Just use existing data. The embodiment of the present invention does not specifically limit the tools used for simulation.
步骤S108,根据仿真模拟结果对开挖变形环境影响范围进行划分、对所述支护结构最大受力部位进行定位。Step S108, according to the simulation results, the scope of influence of the excavation deformation environment is divided, and the maximum stress-bearing part of the support structure is located.
在本发明实施例中,通过模拟仿真结果可以确定开挖变形影响区域的分布以及支护结构各位置的受力大小。如图4-5所示,通过对开挖变形环境影响范围进行划分,可以确定开挖变形的区域分布,其中,开挖变形环境影响范围可以按影响的大小划分为主影响区、次影响区以及无影响区,根据主影响区内支护结构的受力大小,可以确定支护结构的危险点以及关键点,如图6所示;其中,危险点主要是指受力接近或者达到预设范围的点,关键点主要是指容易发生破坏或者对其它结构影响较大的点。通过对这两类点的定位,可以更好地监控整个工程的状态,保证施工的安全进行。In the embodiment of the present invention, the distribution of the area affected by the excavation deformation and the magnitude of the stress at each position of the supporting structure can be determined through the simulation results. As shown in Figure 4-5, the regional distribution of excavation deformation can be determined by dividing the scope of influence of excavation deformation environment. Among them, the scope of influence of excavation deformation environment can be divided into main influence area and secondary influence area according to the size of the impact As well as the no-influence area, according to the force of the support structure in the main influence area, the dangerous points and key points of the support structure can be determined, as shown in Figure 6; among them, the dangerous point mainly means that the force is close to or reaches the preset The key points mainly refer to the points that are prone to damage or have great influence on other structures. Through the positioning of these two types of points, the status of the entire project can be better monitored to ensure the safety of the construction.
步骤S110,根据所述开挖变形环境影响范围的划分结果以及所述支护结构最大受力部位的定位结果,在所述基坑坑壁布设至少一个基坑开挖响应数据采集装置。Step S110, according to the division result of the range of influence of the excavation deformation environment and the location result of the maximum force-bearing part of the support structure, laying at least one foundation pit excavation response data acquisition device on the wall of the foundation pit.
在本发明实施例中,基坑开挖响应数据采集装置选自基坑土体变形采集装置、支护结构受力采集装置、地下水位埋深采集装置、孔隙水压力采集装置中的一种或多种;其中,基坑土体变形采集装置可以选用基坑坑壁土体测斜仪,支护结构受力采集装置可以选用支护结构应力计,地下水位埋深采集装置可以选用基坑坑外和坑内地下水位计,孔隙水压力采集装置可以选用孔隙水压力计。布置之后的结果可以绘制于基坑监测平面布置图中,如图7所示,便于随时查看。In the embodiment of the present invention, the foundation pit excavation response data acquisition device is selected from one or more of foundation pit soil deformation acquisition devices, support structure force acquisition devices, groundwater level buried depth acquisition devices, and pore water pressure acquisition devices. Among them, the foundation pit soil deformation collection device can use the foundation pit wall soil inclinometer, the support structure stress collection device can use the support structure stress gauge, and the groundwater level buried depth collection device can use the foundation pit pit and The underground water level gauge in the pit and the pore water pressure acquisition device can use a pore water pressure gauge. The results after layout can be drawn in the foundation pit monitoring plan, as shown in Figure 7, which is convenient for viewing at any time.
步骤S112,设置数据汇集传输装置,所述数据汇集传输装置与所述基坑开挖响应数据采集装置连接,用于汇总采集到的基坑开挖响应数据并发送给客户端和/或服务器。Step S112, setting up a data collection and transmission device, the data collection and transmission device is connected to the foundation pit excavation response data collection device, and is used to collect the collected foundation pit excavation response data and send it to the client and/or server.
在本发明实施例中,在基坑开挖现场或者附近,还可以设置数据汇集传输装置,用于汇总采集到的基坑开挖响应数据并发送给客户端和/或服务器,数据汇集传输装置与基坑开挖响应数据采集装置通过有线或者无线的方式相连,可以主动获取也可以被动接收基坑开挖响应数据采集装置采集到的基坑开挖响应数据,数据汇集传输装置还与客户端和/或服务器相连,可以将汇总的数据发送给客户端和/或服务器,实现系统的远程监控。作为一种优化方式,客户端和/或服务器还可以通过数据汇集传输装置控制各个基坑开挖响应数据采集装置,例如开关控制等。In the embodiment of the present invention, at or near the excavation site of the foundation pit, a data collection and transmission device can also be set up to collect the collected response data of the foundation pit excavation and send it to the client and/or server. The data collection and transmission device It is connected with the foundation pit excavation response data acquisition device through wired or wireless means, and can actively acquire or passively receive the foundation pit excavation response data collected by the foundation pit excavation response data acquisition device, and the data collection and transmission device is also connected with the client And/or the server is connected, and the aggregated data can be sent to the client and/or the server to realize the remote monitoring of the system. As an optimization method, the client and/or the server can also control each foundation pit excavation response data acquisition device through the data collection and transmission device, such as switch control and the like.
本发明实施例提供的基坑开挖监测系统的布置方法,以基坑工程开挖响应分析计算模型为基础,利用基坑的岩土体物理力学参数、水力学参数和所述支护结构的物理力学参数,对基坑开挖响应进行仿真模拟从而确定支护结构的最大受力部位,通过在确定出的最大受力部位设置基坑开挖响应数据采集装置可以采集到工程的危险点或者关键点的响应数据,从而提高了系统数据采集以及分析的准确性,有利于保证施工安全。The layout method of the foundation pit excavation monitoring system provided by the embodiment of the present invention is based on the analysis and calculation model of the excavation response of the foundation pit engineering, and utilizes the physical and mechanical parameters of the rock and soil body of the foundation pit, the hydraulic parameters and the parameters of the support structure. Physical and mechanical parameters, simulate the excavation response of the foundation pit to determine the maximum force-bearing part of the support structure, and set the foundation pit excavation response data acquisition device at the determined maximum force-bearing position to collect the dangerous points of the project or The response data of key points improves the accuracy of system data collection and analysis, which is conducive to ensuring construction safety.
在一个实施例中,步骤S110之外还包括步骤S202。In one embodiment, step S202 is further included in addition to step S110.
步骤S202,根据所述开挖变形环境影响范围的划分结果以及所述支护结构最大受力部位的定位结果,确定基坑坑壁土体变形与地下水位观测钻孔的孔径、深度、垂直度参数。Step S202, according to the division result of the scope of influence of the excavation deformation environment and the location result of the maximum force-bearing part of the support structure, determine the deformation of the foundation pit wall soil mass and the diameter, depth and verticality of the groundwater level observation borehole parameter.
在本发明实施例中,根据所述开挖变形环境影响范围的划分结果以及所述支护结构最大受力部位的定位结果,还可以确定基坑坑壁土体变形与地下水位观测钻孔的孔径、深度、垂直度参数。其中,钻孔的孔径以及深度直接影响到采集到的数据的精确度,要求钻孔的孔径与基坑开挖响应数据采集装置匹配;深度对基坑开挖响应数据采集装置也会产生影响,例如,当钻孔深度过小时,基坑开挖响应数据采集装置距离基坑壁面太近,容易受到基坑壁面不稳定因素的影响,而当深度较大时,基坑开挖响应数据采集装置不能很好的获取壁面变形数据;此外,钻孔的垂直度对于基坑开挖响应数据采集装置的安装也会产生影响,某些仪器要求垂直安装。In the embodiment of the present invention, according to the division result of the environmental influence range of the excavation deformation and the location result of the maximum stressed part of the support structure, it is also possible to determine the relationship between the soil deformation of the foundation pit wall and the groundwater level observation borehole. Aperture, depth, perpendicularity parameters. Among them, the diameter and depth of the borehole directly affect the accuracy of the collected data, and the diameter of the borehole is required to match the excavation response data acquisition device of the foundation pit; the depth will also have an impact on the excavation response data acquisition device of the foundation pit, For example, when the drilling depth is too small, the foundation pit excavation response data acquisition device is too close to the foundation pit wall, which is easily affected by the unstable factors of the foundation pit wall, while when the depth is large, the foundation pit excavation response data acquisition device The wall deformation data cannot be obtained well; in addition, the verticality of the borehole will also affect the installation of the excavation response data acquisition device of the foundation pit, and some instruments require vertical installation.
本发明实施例提供的基坑开挖监测系统的布置方法不仅能够定位工程危险点以及关键点,在此基础上,还可以定量地给出变形量、应力的大小参考,利用这些数据,可以确定基坑开挖响应数据采集装置安装钻孔的尺寸,由于安装钻孔与基坑开挖响应数据采集装置是否匹配会直接影响数据采集的准确性,因此本发明通过给出钻孔的尺寸参考可以提高数据采集的准确性。The layout method of the foundation pit excavation monitoring system provided by the embodiment of the present invention can not only locate the dangerous points and key points of the project, but also quantitatively give references to the amount of deformation and stress. Using these data, it is possible to determine The size of the installation borehole of the foundation pit excavation response data collection device, because whether the installation borehole matches the foundation pit excavation response data collection device will directly affect the accuracy of data collection, so the present invention can Improve the accuracy of data collection.
在一个实施例中,步骤S110之外还包括步骤S302。In one embodiment, step S302 is further included in addition to step S110.
步骤S202,根据所述开挖变形环境影响范围的划分结果以及所述支护结构最大受力部位的定位结果,确定所述基坑土体变形采集装置、支护结构受力采集装置、地下水位埋深采集装置、孔隙水压力采集装置的量程、分辨率以及精度。Step S202, according to the division result of the scope of influence of the excavation deformation environment and the location result of the maximum force-bearing part of the support structure, determine the acquisition device for the deformation of the foundation pit soil, the force acquisition device for the support structure, and the groundwater level The range, resolution and accuracy of buried depth acquisition devices and pore water pressure acquisition devices.
在本发明实施例中,根据所述开挖变形环境影响范围的划分结果以及所述支护结构最大受力部位的定位结果,可以确定出支护结构或者基坑土体的最大变形量以及应力的范围,从而可以确定基坑土体变形采集装置、支护结构受力采集装置、地下水位埋深采集装置、孔隙水压力采集装置的量程、分辨率以及精度,使得基坑开挖响应数据采集装置与变形量或者应力大小的范围贴合,可以提高数据采集的准确性,防止因量程、分辨率以及精度不合适带来的数据误差。In the embodiment of the present invention, according to the division result of the scope of influence of the excavation deformation environment and the location result of the maximum force-bearing part of the support structure, the maximum deformation and stress of the support structure or foundation pit soil can be determined range, so that the range, resolution and accuracy of the foundation pit soil deformation acquisition device, support structure force acquisition device, groundwater depth acquisition device, and pore water pressure acquisition device can be determined, so that the foundation pit excavation response data acquisition The device fits the range of deformation or stress, which can improve the accuracy of data collection and prevent data errors caused by inappropriate range, resolution and accuracy.
本发明实施例提供的基坑开挖监测系统的布置方法不仅能够定位工程危险点以及关键点,在此基础上,还可以定量地给出变形量、应力的大小参考,利用这些数据,可以确定基坑开挖响应数据采集装置量程、分辨率以及精度的大小,由于基坑开挖响应数据采集装置的量程、分辨率以及精度直接影响到采集到的数据是否准确,因此本发明通过给出基坑开挖响应数据采集装置量程、分辨率以及精度的参考可以提高数据采集的准确性。The layout method of the foundation pit excavation monitoring system provided by the embodiment of the present invention can not only locate the dangerous points and key points of the project, but also quantitatively give references to the amount of deformation and stress. Using these data, it is possible to determine The range, resolution and accuracy of the foundation pit excavation response data acquisition device, because the range, resolution and accuracy of the foundation pit excavation response data acquisition device directly affect whether the collected data is accurate, so the present invention provides a basic The reference of the range, resolution and accuracy of the pit excavation response data acquisition device can improve the accuracy of data acquisition.
图8示出了本发明实施例还提供了一种基坑开挖监测系统,所述系统包括:Fig. 8 shows that the embodiment of the present invention also provides a foundation pit excavation monitoring system, the system includes:
至少一个基坑开挖响应数据采集装置,所述基坑开挖响应数据采集装置的位置按照权利要求1所述的方法确定;以及At least one foundation pit excavation response data collection device, the position of the foundation pit excavation response data collection device is determined according to the method described in claim 1; and
数据汇集传输装置,所述数据汇集传输装置与所述基坑开挖响应数据采集装置连接,用于汇总采集到的基坑开挖响应数据并发送给客户端和/或服务器;A data collection and transmission device, the data collection and transmission device is connected to the foundation pit excavation response data acquisition device, and is used to summarize the collected foundation pit excavation response data and send it to the client and/or server;
所述客户端和/或服务器,与所述数据汇集传输装置通信,用于基坑开挖响应的远程监控。The client and/or server communicate with the data collection and transmission device for remote monitoring of foundation pit excavation response.
在本发明实施例中,基坑开挖响应数据采集装置的安装位置、钻孔大小、量程、分辨率以及精度可以根据本发明实施例提供的基坑开挖监测系统的布置方法确定,此部分内容可以参考前文所述,此处不再赘述。In the embodiment of the present invention, the installation position, borehole size, range, resolution and accuracy of the foundation pit excavation response data acquisition device can be determined according to the layout method of the foundation pit excavation monitoring system provided in the embodiment of the present invention. This part For the content, please refer to the previous description, and will not go into details here.
在本发明实施例中,数据汇集传输装置通过导线或者无线的方式与各个基坑开挖响应数据采集装置相连,将采集到的数据进行汇总后再发送给客户端或者服务器。可以理解 ,数据汇集传输装置除了数据汇总以及与客户端或者服务器通信的功能之外 ,还可以具备对数据进行初步处理的功能,本发明实施例对此不作具体限定。In the embodiment of the present invention, the data collection and transmission device is connected to each foundation pit excavation response data collection device through wires or wirelessly, and collects the collected data before sending them to the client or server. It can be understood that, in addition to the functions of data collection and communication with the client or server, the data collection and transmission device may also have the function of preliminary data processing, which is not specifically limited in the embodiment of the present invention.
在本发明实施例中,客户端或者服务器可以设置多个,通过多个客户端或者服务器可以分别对采集到的现场数据进行处理,从而达到对施工现场运程监控的作用。In the embodiment of the present invention, multiple clients or servers can be set, and the collected field data can be processed respectively through multiple clients or servers, so as to achieve the function of monitoring the distance of the construction site.
本发明实施例提供了一种基坑开挖监测系统,通过对施工现场进行模拟仿真的方式确定基坑开挖响应数据采集装置的设置位置、安装用的钻孔尺寸、量程、分辨率以及精度,从而可以提高数据采集的准确性;此外,设置了与客户端或者服务器相连的数据汇集传输装置,可以对各个基坑开挖响应数据采集装置采集到的数据进行汇总并发送给客户端或者服务器,从而实现施工现场的远程监控,有利于保证施工的安全。The embodiment of the present invention provides a foundation pit excavation monitoring system, which determines the setting position of the foundation pit excavation response data acquisition device, the drilling size, range, resolution and accuracy for installation by simulating the construction site , so that the accuracy of data collection can be improved; in addition, a data collection and transmission device connected to the client or server is set up, which can summarize the data collected by each foundation pit excavation response data collection device and send it to the client or server , so as to realize the remote monitoring of the construction site, which is conducive to ensuring the safety of the construction.
应该理解的是,虽然本发明各实施例的流程图中的各个步骤按照箭头的指示依次显示,但是这些步骤并不是必然按照箭头指示的顺序依次执行。除非本文中有明确的说明,这些步骤的执行并没有严格的顺序限制,这些步骤可以以其它的顺序执行。而且,各实施例中的至少一部分步骤可以包括多个子步骤或者多个阶段,这些子步骤或者阶段并不必然是在同一时刻执行完成,而是可以在不同的时刻执行,这些子步骤或者阶段的执行顺序也不必然是依次进行,而是可以与其它步骤或者其它步骤的子步骤或者阶段的至少一部分轮流或者交替地执行。It should be understood that although the various steps in the flow charts of the embodiments of the present invention are shown sequentially according to the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in each embodiment may include multiple sub-steps or multiple stages, these sub-steps or stages are not necessarily executed at the same time, but may be executed at different times, the sub-steps or stages The order of execution is not necessarily performed sequentially, but may be performed alternately or alternately with at least a part of other steps or sub-steps or stages of other steps.
以上所述实施例的各技术特征可以进行任意的组合,为使描述简洁,未对上述实施例中的各个技术特征所有可能的组合都进行描述,然而,只要这些技术特征的组合不存在矛盾,都应当认为是本说明书记载的范围。The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.
以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对本发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.
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