CN111241611A

CN111241611A - Method for assisting foundation pit implementation

Info

Publication number: CN111241611A
Application number: CN201811422841.6A
Authority: CN
Inventors: 李南江; 黄恩兴; 程良勇; 王海; 王欢; 张天明
Original assignee: Stargis Tianjin Technology Development Co ltd
Current assignee: Stargis Tianjin Technology Development Co ltd
Priority date: 2018-11-27
Filing date: 2018-11-27
Publication date: 2020-06-05
Anticipated expiration: 2038-11-27
Also published as: CN111241611B

Abstract

A method for assisting foundation pit implementation relates to the field of geological exploration, and comprises the following steps: encoding the data; constructing a three-dimensional environment; establishing a database of information; risk identification; risk avoidance; simulating construction; and (5) outputting a conclusion. The advantages are that: the method comprises the steps of collecting spatial data information of overground structures around a foundation pit by using a laser radar technology, integrating underground structure data and underground pipeline data accumulated by a city, and constructing an overground, earth surface and underground integrated three-dimensional spatial geographic information database to build a spatial geographic information basic frame for city construction and planning. Constructing a three-dimensional deep foundation pit according to the foundation pit related scheme and the drawing, wherein the three-dimensional deep foundation pit comprises the space parameters of the foundation pit; explaining the implementation steps of the avoidance measures in a three-dimensional animation mode according to the risk source and the avoidance measure data in the construction scheme. And (5) performing a three-dimensional expression construction process.

Description

Method for assisting foundation pit implementation

Technical Field

The invention relates to the field of geological survey, in particular to a method for assisting foundation pit implementation, which is convenient and accurate to determine the rationality of design schemes such as foundation pit structure construction, excavation, precipitation, monitoring and supporting and the like and guarantees the quality safety of the implemented engineering.

Background

With the rapid development of national economy of China, urban space is in daily shortage, three-dimensional urban space is developed as an important natural resource at first, and rail transit construction becomes the key point of urban infrastructure construction. On one hand, underground space development and utilization are the direction of urban construction in the 21 st century; on the other hand, since the 80 s, the urban process has accelerated and the urban environment has become more complex. Along with the deepening of the urbanization process, the station foundation burial depth is also continuously increased according to the structure of the urban environment and the use requirements of the rail station, and therefore a large number of rail station deep foundation pit projects are generated. The traditional foundation pit scheme demonstration is carried out on a two-dimensional plane drawing, experts need to do a large amount of preliminary work before the demonstration can be carried out, the demonstration of a large-scale engineering scheme is time-consuming and low in efficiency, and project data are difficult to file and look up after construction.

Disclosure of Invention

The embodiment of the invention provides a method for assisting foundation pit implementation, which comprises the following steps: the method comprises the steps of collecting spatial data information of overground structures around a foundation pit by using a laser radar technology, integrating underground structure data and underground pipeline data accumulated by a city, and constructing an overground, earth surface and underground integrated three-dimensional spatial geographic information database to build a spatial geographic information basic frame for city construction and planning. Constructing a three-dimensional deep foundation pit according to the foundation pit related scheme and the drawing, wherein the three-dimensional deep foundation pit comprises the space parameters of the foundation pit; explaining the implementation steps of the avoidance measures in a three-dimensional animation mode according to the risk source and the avoidance measure data in the construction scheme. And (5) performing a three-dimensional expression construction process. And butting the foundation pit deformation monitoring equipment and the settlement monitoring equipment, acquiring monitoring data in real time, analyzing the deformation degree and the ground settlement degree, and giving an early warning prompt when the conditions are poor. Construction data, supervision data and the like of each key link in the whole construction process of the foundation pit are put in storage and managed, and the data are convenient to store and look up.

The invention provides a method for assisting foundation pit implementation, which comprises the following steps:

data encoding: carrying out coding classification on spatial data required by an engineering project and data such as industrial regulations, industrial cases and the like, and sorting various original data;

constructing a three-dimensional environment: extracting the coded original data, making three-dimensional data, constructing a three-dimensional foundation pit and a three-dimensional surrounding environment, and integrating three-dimensional scenes. And meanwhile, classifying and naming each constructed three-dimensional model. Finally forming a three-dimensional model database;

establishing a database by using information: extracting the encoded original data, extracting clauses, categories and key information, and designing the original data into a relational database format for the access and retrieval of a query interface. Meanwhile, the geographic space data and the foundation pit construction scheme are arranged and built, and a space query interface accesses and retrieves. Finally forming a data information space database;

risk identification: carrying out spatial topological relation analysis on each coded three-dimensional model in the constructed three-dimensional scene data; judging according to the rule data inquired by the information space database, automatically constructing a mapping relation when the space distance between the components is within the risk range defined by the legal specification, and automatically comparing the components forming the risk to obtain the grade and the risk category of a risk source; storing the identified risk sources in a risk database;

risk avoidance: sequentially taking out the data from the risk database, automatically comparing and matching avoidance methods of the risk sources according to regulations and cases in the data information space database, pairing the avoidance methods through a user, finally establishing the most feasible avoidance scheme and storing the scheme in the risk database;

and (3) construction simulation: extracting a foundation pit construction scheme in a data information space database and a risk evasion scheme in a risk database, retrieving a construction process three-dimensional model, and arranging according to the complete process steps of foundation pit construction to form a complete set of three-dimensional construction scheme which accords with the special properties of the current foundation pit engineering project;

and (4) conclusion output: and arranging a set of complete three-dimensional construction scheme which accords with the special properties of the current foundation pit engineering project and expert suggestion contents to generate a current foundation pit implementation method instruction manual and a three-dimensional construction instruction animation.

A method for assisting in foundation pit implementation is provided, wherein the building of the three-dimensional environment comprises the following steps:

constructing an overground three-dimensional environment: extracting the original data of the overground spatial data, constructing an overground building object frame model in a semi-automatic manner, and pasting material textures to form a fine three-dimensional model;

underground three-dimensional environment construction: extracting the original data of construction drawing data of the surrounding environment of the underground engineering, and automatically constructing a fine three-dimensional model of the underground construction;

constructing a three-dimensional model of the foundation pit: extracting design drawing data information of the foundation pit embodiment, and automatically constructing three-dimensional models of all parts of the foundation pit;

three-dimensional environment integration: and (4) carrying out unified coordinate system, unified data format and unified platform display on the ground three-dimensional model database, the underground three-dimensional model database and the foundation pit three-dimensional model database.

A method for assisting foundation pit implementation is disclosed, wherein the information library building comprises the following steps:

building a spatial data base: extracting all geographic element information data on the ground around the foundation pit, and performing manual processing and database building;

establishing a library by the regulation case: extracting relevant laws and regulations and original data information of engineering cases in the civil engineering industry, sorting and screening important information, and designing into a relational database structure for information storage;

establishing a risk category library: extracting civil engineering risk related data information, designing a unique code, a risk name, a grade, a category and a description field, and constructing a relational database structure for storage;

establishing a risk avoidance measure library: extracting data materials of the risk avoidance measure method, hanging the keywords with data of a risk category library, and constructing a risk avoidance measure database for data storage;

constructing a construction process library: extracting the original data of the component construction and link construction process data, and establishing a construction process step information base and a process three-dimensional model database.

A method of assisting in the implementation of a foundation pit, wherein the risk identification comprises the steps of:

identifying an object: automatically identifying ground object objects in the built three-dimensional environment, preliminarily judging and establishing corresponding ground objects with risk relationship;

and (3) risk analysis: and sequentially and accurately judging whether the three-dimensional environment component which possibly causes the risk forms a risk source for implementing the foundation pit or not according to industrial laws and regulations and industrial engineering cases.

A method for assisting in foundation pit implementation is provided, wherein the risk avoidance comprises the following steps:

risk classification: according to the content of the established law and regulation library, the preliminarily identified risk object is judged, and the risk category and the risk level are defined;

construction of avoidance measures: and searching evasion measures in a rule base or an engineering case base according to keywords aiming at the judged risk source, searching process flow steps from a construction process component base through related keywords, and outputting the process steps of three-dimensional evasion measures in a three-dimensional mode.

A method for assisting in foundation pit implementation is provided, wherein the construction simulation comprises the following steps:

construction of parts: according to the formed construction scheme steps and avoidance measure steps, calling three-dimensional models of all parts, and simulating and displaying the construction scheme in the form of animation;

real-time monitoring: in the implementation process of each part of a foundation pit, in order to prevent a large dangerous situation from occurring in the implementation process of the part, monitoring, controlling and real-time monitoring and measuring are carried out, measuring data are carried out through sensing equipment, the measuring data are obtained in real time, analysis and measurement are carried out, an alarm is given when the displacement of a monitored part reaches an alert value, and the adjustment of the decision implementation step is assisted;

dewatering of the foundation pit: by arranging the dewatering well, the observation well and the drainage well inside and outside the foundation pit, the underground water level is monitored and adjusted in the whole foundation pit excavation process.

A method for assisting in foundation pit implementation is characterized in that the overground three-dimensional environment construction comprises the following steps:

collecting original data: acquiring point cloud coordinate data of overground buildings and landforms and high-definition image data of the buildings at the same time by using airborne and vehicle-mounted laser radar equipment and high-definition camera equipment to finish the acquisition of original data;

semi-automatically constructing a three-dimensional model: after the point cloud and image data are subjected to noise reduction processing, automatically constructing a high-precision three-dimensional building model and a three-dimensional terrain model, attaching a high-definition image photo to the building model by a manual intervention semi-automatic method, simultaneously performing lighting processing, shadow baking and reverse attaching effect processing, and adjusting the display effect of the three-dimensional model;

overground three-dimensional environment integration: and integrating the built high-precision three-dimensional model to build a library, and finally forming an overground three-dimensional model database.

A method for assisting in foundation pit implementation is characterized in that the underground three-dimensional environment construction comprises the following steps:

extracting data, namely extracting underground environment data around the foundation pit, and screening data information required by modeling;

semi-automatic underground environment modeling is carried out, a three-dimensional model is constructed according to related original data, wherein underground complex building structures are obtained through manual 3dmax modeling, other three-dimensional models are automatically modeled according to the position, size and dimension parameters of related components, and texture and material are given;

in the geological soil layer three-dimensional model data in the underground environment modeling, model parameters are solved through linear fitting of drilling data according to a variation function theoretical model, then spatial data interpolation operation is carried out to obtain a grid point soil layer buried depth position, and a three-dimensional model is constructed through the obtained spatial position;

the spherical theoretical model of the variogram interpolation algorithm is as follows:

the model formula is derived from a calculation formula of the volumes of two overlapped parts of spheres with radius of a and sphere center distance of 2h, the model formula is linear at an origin, and the slope of a tangent line is

The tangent reaches a distance c of

The main task is to fit an experimental variation function value of a section of h being more than 0 and less than or equal to a; gamma (h) represents the weight of the effect of other borehole data on the current calculated spatial position, h represents the distance of other boreholes from the current calculated spatial position, a, c₀Representing constant parameters of the model formula;

calculating constants a, c in a spherical model formula by adopting a linear regression method₀And substituting the existing drilling position data and soil layer data as samples into a model formula to solve the equation. Assuming a total of n borehole sites, b_iFor the actual value of the variation function, h_iFor the lag distance, i is 1, 2, 3 …, n, γ (h)_i)＝αx1+βx2+γx₃For the corresponding fit values, α ═ 1, β ═ h_i，

m is a constant of amplification, the process of calculating the optimal parameters of the spherical model variation function is converted into the calculation of the objective function f (x) q₁x₄+q₂x₅+q₃x₅+…+q_nx_n+3And satisfies the constraint condition:

the absolute value of the difference between the fitting value of the ith point position and the experimental value of the sample is obtained;

solving for x by linear regression method₁，x₂，x₃Thereby obtaining c₀Substituting the spherical model into the spherical model to perform spatial data interpolation to calculate the buried depth position of the soil layer of each point to be calculated;

and (3) constructing an underground three-dimensional environment, namely integrating the constructed underground three-dimensional model data around the foundation pit engineering to construct an underground three-dimensional model database.

A method for assisting in implementing a foundation pit comprises the following steps of:

extracting design data of the foundation pit: acquiring spatial data information of each part of a foundation pit and peripheral geological exploration drilling data information in a drawing;

constructing a foundation pit model: extracting information of each part of the foundation pit, automatically constructing a three-dimensional model of the part, or introducing and converting three-dimensional models in other BIM software formats to obtain a three-dimensional model of the foundation pit; picking up related components by a user, and inputting component attribute information;

and establishing a three-dimensional foundation pit base, integrating and organizing three-dimensional models and attribute information of all parts of the foundation pit, and simultaneously checking, checking and correcting the data condition of all parts, so that information loss and errors caused by format conversion of other software are avoided, and finally the foundation pit three-dimensional model database is formed.

A method for assisting in foundation pit implementation is provided, wherein the database building of the surface space data comprises the following steps:

extracting original data of spatial information: checking the correctness and the occurrence of the original data;

building a spatial data base: and processing and warehousing the spatial data to form a geospatial database.

A method for assisting foundation pit implementation is provided, wherein the establishment of the rule case library comprises the following steps:

extracting original data: and analyzing the key information and threshold values related to the industry regulations and the industry cases.

Establishing a library of the rule case information: and designing keywords and indexes according to the extracted and analyzed key information and threshold values, and constructing a rule and case database.

A method for assisting foundation pit implementation is provided, wherein the risk category database building comprises the following steps:

extracting risk data: and extracting the risk data information in the original data and the risk original data in the specific case, and analyzing the information related to the unique risk code, the risk name, the risk category, the risk level and the risk description.

Establishing a risk category library: designing a database table according to the analyzed key information, and constructing a relational risk category database;

a method for assisting foundation pit implementation is provided, wherein the risk avoiding measure library building comprises the following steps:

extracting risk treatment measure data: extracting risk processing measure data in regulations and cases, analyzing the key information of the measure unique code, the risk code, the measure name, the measure specific steps, the measure description and the measure step three-dimensional model code, and associating the measure step three-dimensional model;

establishing a risk avoidance measure library: designing a data table according to the analyzed risk avoidance measure information, and constructing a relational risk avoidance measure database;

a method for assisting in implementing a foundation pit is provided, wherein the construction process library building comprises the following steps:

data arrangement: extracting original data of construction steps such as regulations, cases, designs and implementation related to various projects, refining and constructing implementation process steps of three-dimensional bodies, and designing keywords and key information;

establishing a library by the process steps: and extracting construction process step data of each link of the component, establishing a standard format of a database, and forming a construction process database.

A method of assisting in the implementation of a foundation pit, wherein the identifying an object comprises the steps of:

screening objects: preliminarily screening three-dimensional environment components possibly causing risks according to spatial relationships among ground objects and industrial laws and regulations related to civil engineering;

and (4) judging the attribute: preliminarily judging whether elements forming a risk source are provided or not according to the attributes of each ground feature part;

comprehensive judgment: and analyzing whether the ground object is a risk source or not by combining the ground object attribute and the spatial position.

A method of assisting in the implementation of a foundation pit, wherein the risk analysis comprises the steps of:

and (4) judging according to the rules: searching a regulation database according to conditions, matching related parameters, and sequentially judging whether the implementation of the three-dimensional environment component on the foundation pit forms a risk source;

judging according to cases: searching an engineering case database according to conditions, matching related parameters, and sequentially judging whether the implementation of the three-dimensional environment component on the foundation pit forms a risk source;

risk grading: determining the high risk level as the construction risk source level of the component by combining the judgment results of the rule base and the case base;

and (4) outputting a result: and outputting the results of the sequentially judged risk sources, the grades of the risk sources and the like.

A method of assisting in foundation pit implementation, wherein the risk classification comprises the steps of:

inputting basis: according to various parameters of risks, inquiring, searching and matching from a risk category library;

and (4) risk classification: and judging the risk level and the risk category of the three-dimensional environment component which possibly causes the risk according to the risk category division basis.

A method for assisting foundation pit implementation is characterized in that the evasive measure construction comprises the following steps:

screening evasion measures: screening avoidance methods meeting the current risk from a risk avoidance measure library according to the analyzed risk and the category information thereof;

user-defined measures: according to the special properties of the current project and the experience of the user, the avoidance measures are adjusted to form a method of the avoidance measures;

forming an avoidance scheme: searching a process flow step meeting construction requirements from a construction process database according to key information aiming at the avoidance measures after manual intervention, and forming an avoidance scheme;

and (3) avoiding measure output: and constructing the formed process steps in a three-dimensional stereoscopic mode and outputting software.

A method for assisting in implementing a foundation pit is disclosed, wherein the construction of the parts comprises the following steps:

site arrangement: a site three-dimensional model is called, preparation of animation simulation construction site conditions is carried out, and external interference in the component implementation process is avoided;

and (3) process search: searching the process steps used in the implementation of each part from a process database according to the formed construction scheme;

construction: connecting the process steps implemented by each component in series according to an implementation plan to form a set of complete foundation pit implementation process flow combined with the specific engineering environment, calling a corresponding three-dimensional model, and performing simulation construction in the form of animation;

side station recording: and (4) controlling the quality in the process of each implementation step, well acquiring side station supervision records and field data, and uploading the side station supervision records and the field data to a supervision side station information database for storage.

A method for assisting in foundation pit implementation is disclosed, wherein the real-time monitoring comprises the following steps:

monitoring and controlling: before each part of the foundation pit is implemented, point positions are buried, and real-time monitoring is carried out;

monitoring data acquisition: according to the environment monitoring characteristics of each part, selecting corresponding monitoring equipment, penetrating the whole implementation process of the foundation pit, and carrying out uninterrupted real-time acquisition on displacement data;

and (3) analyzing monitoring data: extracting data from each monitoring device at regular time, storing and managing the data to form a monitoring historical database, analyzing and drawing a displacement change rule curve from a space-time four-dimensional angle in real time, alarming the places exceeding the warning threshold value in a mode of highlighting and sounding warning sound, and simultaneously carrying out three-dimensional space accurate positioning;

guiding construction adjustment: and analyzing and proposing which measure is suggested to be adopted for remediation according to the result of the data analysis, searching a measure suitable for the current risk from the risk emergency database, searching a corresponding construction process step from the construction process database, and constructing a three-dimensional emergency risk avoiding scheme.

A method for assisting in foundation pit implementation, wherein the foundation pit dewatering comprises the following steps:

arranging a water well: designing and arranging various water well distribution schemes with different functions according to the surrounding environmental condition requirements and design data of the foundation pit position;

and (3) process search: searching precipitation process steps of corresponding wells from the construction process database, and constructing a three-dimensional precipitation process flow;

dewatering step by step: constructing and simulating a precipitation process in the excavation process in a three-dimensional manner according to special requirements of the surrounding environment of the foundation pit and requirements of the excavation steps of the foundation pit, analyzing the influence range of the precipitation process on underground water, and simulating a change curved surface of the underground water level;

side station recording: in the precipitation process of each step, side station supervision records and field photographing data are well acquired and stored in a database after being managed.

A method of assisting in foundation pit implementation, wherein the spatial data comprises: the method comprises the following steps of three-dimensional ground building structure point cloud data, three-dimensional ground building structure texture photo data, field shot photo data, ground terrain data, ground road data, ground house data, ground planning control data, ground planning red line data, underground pipeline data, underground building pile base data, underground building structure data, underground drilling data, foundation pit implementation design map data and foundation pit implementation monitoring point location distribution and control design map data; the industry regulatory data includes: legal documents in the aspects of rail transit and civil engineering design and construction; administrative laws and regulations in the aspects of rail transit and civil engineering construction management, permit certificate design indexes in civil engineering and the like, industrial construction management methods and data in the aspect of civil engineering industry specifications. The industry case data includes: civil construction case data; the risk information includes: name, code, spatial location, spatial extent, impact range, risk level; the key display links are as follows: the method comprises the following steps of site fencing, traffic guidance, pipeline cutting and modification, site arrangement, monitoring point location distribution and control, underground diaphragm wall construction, precipitation well arrangement, foundation pit excavation, monitoring data analysis, precipitation step, support installation and main body construction; the above-ground three-dimensional environment comprises: building structures, terrains, landscape greening, urban parts, street lamp signboards, bridges, rivers, foundation pit construction sites, mechanical equipment and building materials on the periphery; the subsurface three-dimensional environment includes: peripheral underground building structures, underground pile foundations, underground pipe networks, underground drill holes, underground water and underground water precipitation wells; the foundation pit database storage information comprises: the method comprises the following steps of (1) constructing a ground wall, a cast-in-place pile, a jet grouting pile, a support, a main building, monitoring a point position, surveying a borehole and water well parts inside and outside a foundation pit; the surface space data storage information comprises: house data, current land data, planning red lines, road traffic networks, pipe network data and place name addresses; the construction content of the parts comprises the following steps: the work contents of site arrangement, key link implementation, side station supervision and quality control are carried out; the floor layout content includes: the method comprises the following steps of (1) carrying out site curtain and traffic guidance before construction, switching of underground pipe networks, and spatial deployment of site rest office rooms and mechanical equipment; the monitoring and controlling content comprises the following steps: peripheral building settlement displacement monitoring stationing, peripheral ground settlement displacement monitoring stationing, nearby ground water level monitoring stationing, underground continuous wall settlement and horizontal displacement monitoring stationing, underground building settlement and horizontal displacement monitoring stationing, support and strut axial force monitoring stationing.

It can be seen from this that: the embodiment of the invention provides a method for assisting foundation pit implementation, which comprises the following steps: the method comprises the steps of collecting spatial data information of overground structures around a foundation pit by using a laser radar technology, integrating underground structure data and underground pipeline data accumulated by a city, and constructing an overground, earth surface and underground integrated three-dimensional spatial geographic information database to build a spatial geographic information basic frame for city construction and planning. Constructing a three-dimensional deep foundation pit according to the foundation pit related scheme and the drawing, wherein the three-dimensional deep foundation pit comprises the space parameters of the foundation pit; explaining the implementation steps of the avoidance measures in a three-dimensional animation mode according to the risk source and the avoidance measure data in the construction scheme. And (5) performing a three-dimensional expression construction process. And butting the foundation pit deformation monitoring equipment and the settlement monitoring equipment, acquiring monitoring data in real time, analyzing the deformation degree and the ground settlement degree, and giving an early warning prompt when the conditions are poor. Construction data, supervision data and the like of each key link in the whole construction process of the foundation pit are put in storage and managed, and the data are convenient to store and look up.

Drawings

Fig. 1 is a schematic overall flowchart of a method for assisting in implementing a foundation pit according to an embodiment of the present invention;

fig. 2 is a schematic flowchart illustrating a step of constructing a three-dimensional environment in a method for assisting in implementing a foundation pit according to an embodiment of the present invention;

fig. 3 is a schematic flowchart of an information library creating step in the method for assisting in implementing the foundation pit according to the embodiment of the present invention;

fig. 4 is a schematic flowchart illustrating a risk identification step in a method for assisting in implementing a foundation pit according to an embodiment of the present invention;

fig. 5 is a schematic flowchart of a risk avoiding step in a method for assisting foundation pit implementation according to an embodiment of the present invention;

fig. 6 is a schematic flow chart illustrating a construction simulation step in a method for assisting in implementing a foundation pit according to an embodiment of the present invention;

fig. 7 is a schematic flow chart of the steps of constructing the three-dimensional environment on the ground in the method for assisting in implementing the foundation pit according to the embodiment of the present invention;

fig. 8 is a schematic flow chart of the construction of the underground three-dimensional environment in the method for assisting the foundation pit implementation according to the embodiment of the invention;

fig. 9 is a schematic flowchart of a foundation pit constructing step in a method for assisting in implementing a foundation pit according to an embodiment of the present invention;

fig. 10 is a schematic flowchart of a step of creating a database of surface space data in a method for assisting in implementing a foundation pit according to an embodiment of the present invention;

fig. 11 is a schematic flowchart of a step of establishing a library of rule cases in a method for assisting foundation pit implementation according to an embodiment of the present invention;

fig. 12 is a schematic flowchart of a step of establishing a risk category library in a method for assisting foundation pit implementation according to an embodiment of the present invention;

fig. 13 is a schematic flowchart of a step of establishing a library of risk evasive measures in the method for assisting foundation pit implementation according to the embodiment of the present invention;

fig. 14 is a schematic flowchart of a step of building a library by a construction process in the method for assisting in implementing a foundation pit according to the embodiment of the present invention;

fig. 15 is a schematic flowchart illustrating a step of identifying an object in a method for assisting in implementing a foundation pit according to an embodiment of the present invention;

fig. 16 is a schematic flowchart illustrating a risk analysis step in a method for assisting in implementing a foundation pit according to an embodiment of the present invention;

fig. 17 is a schematic flowchart illustrating a risk classification step in a method for assisting in implementing a foundation pit according to an embodiment of the present invention;

fig. 18 is a schematic flowchart of an evasive measure constructing step in a method for assisting foundation pit implementation according to an embodiment of the present invention;

fig. 19 is a schematic flowchart of a part constructing step in a method for assisting in implementing a foundation pit according to an embodiment of the present invention;

fig. 20 is a schematic flowchart illustrating a real-time monitoring step in a method for assisting in implementing a foundation pit according to an embodiment of the present invention;

fig. 21 is a schematic flowchart of a foundation pit dewatering step in a method for assisting in foundation pit implementation according to an embodiment of the present invention.

Detailed Description

In order that those skilled in the art will better understand the technical solution of the present invention, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments, wherein the exemplary embodiments and the description of the present invention are provided to explain the present invention, but not to limit the present invention.

Example 1:

fig. 1 is a method for assisting in implementing a foundation pit, and as shown in fig. 1, the method includes the following steps:

A method for assisting in the implementation of a foundation pit as shown in fig. 2, wherein the constructing a three-dimensional environment comprises the following steps:

constructing a foundation pit three-dimensional model library: extracting design drawing data information of the foundation pit embodiment, and automatically constructing three-dimensional models of all parts of the foundation pit;

Fig. 3 shows a method for assisting in implementing a foundation pit, where the information library creation includes the following steps:

establishing a risk category library: extracting risk data information in the original data and risk original data in the specific case, analyzing related information of a risk unique code, a risk name, a risk category, a risk grade and a risk description, designing a database table according to analyzed key information, and constructing a relational risk category database;

establishing a risk avoidance measure library: extracting risk processing measure data in laws and cases, analyzing the key information of the three-dimensional models of the unique codes, the risk codes, the measure names, the specific steps of the measures, the measure descriptions and the measure steps, simultaneously associating the three-dimensional models of the measure steps, designing a data table according to the analyzed risk evasion measure information, and constructing a relational risk evasion measure database.

A method for assisting in the implementation of a foundation pit, as shown in fig. 4, wherein the risk identification comprises the steps of:

A method for assisting in foundation pit implementation as shown in fig. 5, wherein the risk avoiding comprises the steps of:

A method for assisting in foundation pit implementation as shown in fig. 6, wherein the construction simulation comprises the steps of:

A method for assisting in foundation pit implementation as shown in fig. 7, wherein the above-ground three-dimensional environment construction comprises the following steps:

constructing an overground three-dimensional environment: and integrating the built high-precision three-dimensional model to build a library, and finally forming an overground three-dimensional model database.

A method for assisting in the implementation of a foundation pit, as shown in fig. 8, wherein the construction of the underground three-dimensional environment comprises the following steps:

extracting underground environment data around the foundation pit, and screening data information required by modeling;

semi-automatic modeling, namely constructing a three-dimensional model according to related original data, wherein the underground complex building is obtained by manually utilizing 3dmax modeling, and other three-dimensional models are automatically modeled according to the position, size and dimension parameters of related components and endowed with textures and materials;

the spherical model of the variogram interpolation algorithm is as follows:

The tangent reaches a distance c of

calculating constants a, c in a spherical model formula by adopting a linear regression method₀And substituting the existing drilling position data and soil layer data as samples into a model formula to solve the equation. Assuming a total of n borehole sites, b_iFor the actual value of the variation function, h_iFor the lag distance, i is 1, 2, 3 …, n, γ (h)_i)＝αx₁+βx₂+γx₃For the corresponding fit values, α ═ 1, β ═ h_i，

Fig. 9 shows a method for assisting in implementing a foundation pit, wherein the building of the three-dimensional model of the foundation pit includes the following steps:

A method for assisting in foundation pit implementation as shown in fig. 10, wherein the step of establishing the database of the surface space data comprises the following steps:

Fig. 11 shows a method for assisting in implementing a foundation pit, where the creating of the rule case library includes the following steps:

Fig. 12 shows a method for assisting in implementing a foundation pit, wherein the risk classification database creation includes the following steps:

fig. 13 shows a method for assisting in implementing a foundation pit, where the step of creating a library of risk avoidance measures includes the steps of:

fig. 14 shows a method for assisting in implementing a foundation pit, wherein the construction process library building includes the following steps:

A method for assisting in implementing a foundation pit as shown in fig. 15, wherein the identifying an object comprises the steps of:

A method of assisting in the implementation of a foundation pit, as shown in fig. 16, wherein the risk analysis comprises the steps of:

A method of assisting in the implementation of a foundation pit, as illustrated in fig. 17, wherein the risk classification comprises the steps of:

Fig. 18 shows a method for assisting in implementing a foundation pit, where the evasive measure construction includes the following steps:

Fig. 19 shows a method for assisting in implementing a foundation pit, wherein the component construction includes the following steps:

A method for assisting in implementing a foundation pit as shown in fig. 20, wherein the real-time monitoring comprises the following steps:

A method of assisting in the implementation of a foundation pit as illustrated in figure 21, wherein the precipitation of the foundation pit comprises the steps of:

In a specific embodiment, the spatial data includes: the method comprises the following steps of three-dimensional ground building structure point cloud data, three-dimensional ground building structure texture photo data, field shot photo data, ground terrain data, ground road data, ground house data, ground planning control data, ground planning red line data, underground pipeline data, underground building pile base data, underground building structure data, underground drilling data, foundation pit implementation design map data and foundation pit implementation monitoring point location distribution and control design map data; the industry regulatory data includes: legal documents in the aspects of rail transit and civil engineering design and construction; administrative laws and regulations in the aspects of rail transit and civil engineering construction management, permit certificate design indexes in civil engineering and the like, industrial construction management methods and data in the aspect of civil engineering industry specifications. The industry case data includes: civil construction case data; the risk information includes: name, code, spatial location, spatial extent, impact range, risk level; the key display links are as follows: the method comprises the following steps of site fencing, traffic guidance, pipeline cutting and modification, site arrangement, monitoring point location distribution and control, underground diaphragm wall construction, precipitation well arrangement, foundation pit excavation, monitoring data analysis, precipitation step, support installation and main body construction; the above-ground three-dimensional environment comprises: building structures, terrains, landscape greening, urban parts, street lamp signboards, bridges, rivers, foundation pit construction sites, mechanical equipment and building materials on the periphery; the subsurface three-dimensional environment includes: peripheral underground building structures, underground pile foundations, underground pipe networks, underground drill holes, underground water and underground water precipitation wells; the foundation pit database storage information comprises: the method comprises the following steps of (1) constructing a ground wall, a cast-in-place pile, a jet grouting pile, a support, a main building, monitoring a point position, surveying a borehole and water well parts inside and outside a foundation pit; the surface space data storage information comprises: house data, current land data, planning red lines, road traffic networks, pipe network data and place name addresses; the construction content of the parts comprises the following steps: the work contents of site arrangement, key link implementation, side station supervision and quality control are carried out; the floor layout content includes: the method comprises the following steps of (1) carrying out site curtain and traffic guidance before construction, switching of underground pipe networks, and spatial deployment of site rest office rooms and mechanical equipment; the monitoring and controlling content comprises the following steps: peripheral building settlement displacement monitoring stationing, peripheral ground settlement displacement monitoring stationing, nearby ground water level monitoring stationing, underground continuous wall settlement and horizontal displacement monitoring stationing, underground building settlement and horizontal displacement monitoring stationing, support and strut axial force monitoring stationing.

Example 2:

data encoding: and (3) coding and classifying the spatial data diagram required by the engineering project and data such as industrial regulations, industrial cases and the like, and sorting various original data. The spatial data includes: building a structure point cloud data code JK-DS-DY-000001.las on the three-dimensional ground; building texture photo data of the structure on the three-dimensional ground and shooting photo data codes JK-DS-WL-000001.jpg on site; the terrestrial terrain data code JK-DS-DX-00001. dwg; the ground road data code JK-DS-DL-000001. shp; the ground house data code JK-DM-FW-000001. shp; ground planning control data JK-DM-KG-000001. shp; the ground planning red line data coding JK-DM-HX-000001. shp; underground pipeline data JK-DX-GX-000001. shp; encoding JK-DX-ZJ-000001.dwg by using underground building pile foundation data; underground construction data code JK-DX-JG-000001. dwg; underground borehole data encoding JK-DX-ZK-000001. txt; carrying out design drawing data coding JK-SG-000001.dwg on the foundation pit; and carrying out monitoring on the data code JK-JC-000001.dwg of the point location distribution control design drawing in the foundation pit. Industry regulatory data include: legal document code JK-FG-FL-000001.doc in the aspects of rail transit and civil engineering design and construction; the administrative regulation codes in the aspects of rail transit and civil engineering construction management are as follows: JK-FG-XZ-000001. doc; the design index code JK-FG-XK-000001.doc of the license certificates of civil engineering and the like; an industry construction management method type code JK-FG-SG-000001. doc; and the data code in the aspect of civil engineering industry standard is JK-FG-GF-000001. doc. The industry case data includes: and the civil construction case data code JK-AL-000001. doc. The symbol is divided into units according to the symbol, the symbol is followed by the file extension, the last unit number in all codes is the number of the data, and if a plurality of data exist, the numbers are accumulated in the unit. (ii) a

Constructing a three-dimensional environment: and (3) coding data of which the first two units are 'JK-DS', 'JK-DM', 'JK-DX' and 'JK-SG' are numbered, carrying out three-dimensional data manufacturing by using a software tool, constructing a three-dimensional foundation pit and a three-dimensional surrounding environment, and merging the three-dimensional foundation pit and the three-dimensional surrounding environment into a library loading three-dimensional software platform for visualization. Meanwhile, classifying and naming each constructed three-dimensional model according to a geode structure, such as the above-ground house according to building codes DS-FW-LOU-000001; the underground rainwater pipeline is coded DX-GX-YS-000001 according to geode; the underground gas pipeline is coded DX-GX-RQ-000001 according to geode; underground foundation pit underground diaphragm wall blocks are subjected to encoding DX-JK-DLQ-000001 according to geode; the underground foundation pit support is coded DX-JK-ZH-000001 according to geode; underground exploration drilling is carried out according to geode to code DX-JK-ZK-000001; underground constructions encode DX-JG-ZJ-000001 according to geode; performing interpolation algorithm operation according to the drilling data, automatically constructing a three-dimensional geological soil layer model, and simultaneously performing soil layer coding DX-JK-DZ-000001; encoding DX-JK-JSJ-000001 of the underground water precipitation well according to geode; excavating earth and coding DX-JK-TF-000001 according to geode; and coding DX-JK-JC-000001 on the monitoring point positions deployed before and in the excavation process according to geode. Dividing the code into units according to the symbol, wherein the last unit number in all codes is the serial number of the data, and if a plurality of data exist, accumulating the numbers in the unit;

establishing a database by using information: the data of which the first two units are 'JK-FG', 'JK-AL' and the like are numbered, extracted by clause number, category and keywords and designed into a relational database format, and related information can be quickly inquired and retrieved through a software database inquiry interface. Meanwhile, the coded data with the first two units being 'JK-DM' are subjected to geospatial data storage, and related information is inquired and accessed through a spatial data engine interface. The method mainly comprises the steps of building a spatial data library, building a law and regulation library, building a risk category library, building a risk evasion measure library and building a construction process library;

risk identification: performing spatial topological relation analysis on each geode-coded three-dimensional model in the constructed three-dimensional scene data; judging according to the rule data inquired by the information space database, automatically constructing a mapping relation when the space distance between the components is within the risk range defined by the legal specification, and automatically comparing the components forming the risk to obtain the grade and the risk category of a risk source; storing the identified risk sources in a risk database;

and (3) construction simulation: extracting a foundation pit construction scheme in a data information space database and a risk evasion scheme in a risk database, retrieving a construction process three-dimensional model, and arranging according to the complete process steps of foundation pit construction, wherein the major links comprise site fence, traffic guidance, pipeline switching, site arrangement, monitoring point distribution and control, underground diaphragm wall construction, precipitation well arrangement, foundation pit excavation, monitoring data analysis, precipitation step, support installation, main body construction and the like to form a complete set of three-dimensional construction scheme which accords with the special properties of the current foundation pit engineering project;

constructing an overground three-dimensional environment: extracting the original data of the overground spatial data, wherein codes such as 'JK-DS-DY', 'JK-DS-WL', and the like are carried out, constructing a frame model of the overground building object semi-automatically, and pasting texture to form a fine three-dimensional model. The method comprises the following steps of constructing buildings, terrains, landscaping, urban parts, street lamp signboards, bridges, rivers, foundation pit construction sites, mechanical equipment, building materials and the like on the ground at the periphery;

underground three-dimensional environment construction: extracting original data of construction drawing data of the surrounding environment of the underground engineering, wherein the data are provided with numbers of 'JK-DX-GX', 'JK-DX-ZJ', 'JK-DX-JG', 'JK-DX-ZK' and the like, and automatically constructing a fine three-dimensional model of the underground construction, wherein the fine three-dimensional model comprises a surrounding underground construction, an underground pile foundation, an underground pipe network, an underground drilling hole, underground water, an underground water precipitation well and the like;

constructing a foundation pit three-dimensional model library: extracting design drawing data information data of an embodiment of the foundation pit, wherein the data information data comprise codes of 'JK-SG' and the like, and automatically constructing three-dimensional models of all parts of the foundation pit, including parts such as a diaphragm wall, a cast-in-place pile, a jet grouting pile, a support, a main building, a monitoring point position, an exploration drilling hole, a water well inside and outside the foundation pit and the like;

building a spatial data base: extracting all geographical element information data on the ground around the foundation pit, wherein the information data are provided with codes of 'JK-DS-DX', 'JK-DS-DL', 'JK-DM-FW', 'JK-DM-KG', 'JK-DM-HX' and the like, carrying out manual processing and database building, and comprise house data, current land data, planning red lines, road traffic networks, pipe network data, place name addresses and the like;

establishing a risk category library: extracting risk data information in original data and risk original data in specific cases, wherein the codes are 'JK-FG-FL', 'JK-FG-XZ', 'JK-FG-XK', 'JK-FG-SG', 'JK-FG-GF', 'JK-AL' and the like, analyzing related information of a risk unique code, a risk name, a risk category, a risk level and a risk description, designing a database table according to analyzed key information, and constructing a relational risk category database;

establishing a risk avoidance measure library: extracting risk treatment measure data in regulations and cases, wherein the data are provided with codes of 'JK-FG-FL', 'JK-FG-XZ', 'JK-FG-XK', 'JK-FG-SG', 'JK-FG-GF', 'JK-AL', and the like, analyzing the three-dimensional model coding key information of the unique code, risk code, measure name, measure specific step, measure description and measure step, associating the three-dimensional model of the measure step, designing a data table according to the analyzed risk evasion measure information, and constructing a relational risk evasion measure database.

Constructing a construction process library: extracting raw data of component construction and link construction process data, wherein the raw data are provided with numbers of 'JK-FG-FL', 'JK-FG-XZ', 'JK-FG-XK', 'JK-FG-SG', 'JK-FG-GF', 'JK-AL' and the like, and establishing a construction process step information base and a process three-dimensional model database.

the spherical model of the variogram interpolation algorithm is as follows:

The tangent reaches a distance c of

calculating constants a, c in a spherical model formula by adopting a linear regression method₀And substituting the existing drilling position data and soil layer data as samples into a model formula to solve the equation. Assuming a total of n borehole sites, b_iFor the actual value of the variation function, h_iFor the lag distance, i is 1, 2, 3 …, n, γ (h)_i)＝αx₁+βx₂+γx₃For the corresponding fit values, α ═ 1, β ═ h_i,

m isA constant of amplification, the process of calculating the optimal parameters of the spherical model variation function is converted into the calculation of the objective function f (x) q₁x₄+q₂x₅+q₃x₅+…+q_nx_n+3And satisfies the constraint condition:

extracting design data of the foundation pit: acquiring spatial data information of each part of a foundation pit and peripheral geological exploration drilling data information in a drawing, wherein codes such as 'JK-SG', 'JK-DX-ZK' and the like are contained;

extracting original data of spatial information: extracting relevant data of the spatial data, and checking the correctness and the situation of the original data;

extracting original data: and extracting and analyzing key information and threshold values related to the industry regulations and the industry cases.

While the embodiments of the present invention have been described by way of example, those skilled in the art will appreciate that there are numerous variations and permutations of the present invention without departing from the spirit of the invention, and it is intended that the appended claims cover such variations and modifications as fall within the true spirit of the invention.

Claims

1. A method for assisting in implementing a foundation pit is characterized by comprising the following steps:

constructing a three-dimensional environment: extracting the encoded original data, making three-dimensional data, constructing a three-dimensional foundation pit and a three-dimensional surrounding environment, and integrating three-dimensional scenes; and meanwhile, classifying and naming each constructed three-dimensional model. Finally forming a three-dimensional model database;

establishing a database by using information: extracting the encoded original data, extracting clauses, categories and key information, and designing the original data into a relational database format for an inquiry interface to access and retrieve; meanwhile, the geographic space data and the foundation pit construction scheme are arranged and built, and a space query interface is accessed and retrieved; finally forming a data information space database;

2. The method for assisting in foundation pit implementation according to claim 1, wherein the constructing of the three-dimensional environment comprises the following steps:

3. The method for assisting in foundation pit implementation according to claim 1, wherein the information library creation comprises the steps of:

4. The method for assisting in foundation pit implementation according to claim 1, wherein: the risk identification comprises the following steps:

5. The method for assisting in foundation pit implementation according to claim 1, wherein: the risk avoidance comprises the following steps:

6. The method for assisting in foundation pit implementation according to claim 1, wherein the construction simulation comprises the following steps:

7. The foundation pit implementation assisting method according to claim 2, wherein the overground three-dimensional environment construction comprises the following steps:

8. A method of assisting in the construction of a foundation pit according to claim 2, wherein: the underground three-dimensional environment construction comprises the following steps:

the spherical model of the variogram interpolation algorithm is as follows:

The tangent reaches a distance c of

The main task is to fit at 0<h is less than or equal to a section of the experimental variation function value; gamma (h) represents the weight of the effect of other borehole data on the current calculated spatial position, h represents the distance of other boreholes from the current calculated spatial position, a, c₀Representing constant parameters of the model formula;

calculating constants a, c in a spherical model formula by adopting a linear regression method₀Taking the existing drilling position data and soil layer data as samples to be brought into a model formula to carry out equation solution; assuming a total of n borehole sites, b_iFor the actual value of the variation function, h_iFor the lag distance, i is 1, 2, 3 …, n, γ (h)_i)＝αx₁+βx₂+γx₃For the corresponding fit values, α ═ 1, β ═ h_i,

9. A method of assisting in the construction of a foundation pit according to claim 2, wherein: the foundation pit three-dimensional model construction method comprises the following steps:

10. A method of assisting in the implementation of a foundation pit according to claim 3, wherein: the earth surface space data database building method comprises the following steps:

11. A method of assisting in the implementation of a foundation pit according to claim 3, wherein: the method for establishing the rule case library comprises the following steps:

12. A method of assisting in the implementation of a foundation pit according to claim 3, wherein: the risk category database building method comprises the following steps:

13. a method of assisting in the implementation of a foundation pit according to claim 3, wherein: the risk avoidance measure library building method comprises the following steps:

14. a method of assisting in the implementation of a foundation pit according to claim 3, wherein: the construction process library building method comprises the following steps:

data extraction: extracting original data of construction steps such as regulations, cases, designs and implementation related to various projects, refining and constructing implementation process steps of three-dimensional bodies, and designing keywords and key information;

15. A method of assisting in the implementation of a foundation pit according to claim 4, wherein: the identifying the object comprises the steps of:

16. A method of assisting in the implementation of a foundation pit according to claim 4, wherein: the risk analysis comprises the following steps:

17. A method of assisting in the implementation of a foundation pit according to claim 5, wherein: the risk classification comprises the following steps:

18. A method of assisting in the implementation of a foundation pit according to claim 5, wherein: the construction of the evasive measures comprises the following steps:

19. A method of assisting in the implementation of a foundation pit according to claim 6, wherein: the part construction comprises the following steps:

20. A method of assisting in the implementation of a foundation pit according to claim 6, wherein: the real-time monitoring comprises the following steps:

21. A method of assisting in the implementation of a foundation pit according to claim 6, wherein: the foundation pit dewatering method comprises the following steps:

22. A method of assisting in the construction of a foundation pit according to claims 1-21, wherein: the spatial data includes: the method comprises the following steps of three-dimensional ground building structure point cloud data, three-dimensional ground building structure texture photo data, field shot photo data, ground terrain data, ground road data, ground house data, ground planning control data, ground planning red line data, underground pipeline data, underground building pile base data, underground building structure data, underground drilling data, foundation pit implementation design map data and foundation pit implementation monitoring point location distribution and control design map data; the industry regulatory data includes: legal documents in the aspects of rail transit and civil engineering design and construction; administrative laws and regulations in the aspects of rail transit and civil engineering construction management, permit certificate design indexes in civil engineering and the like, industrial construction management methods and data in the aspect of civil engineering industry specifications. The industry case data includes: civil construction case data; the risk information includes: name, code, spatial location, spatial extent, impact range, risk level; the key display links are as follows: the method comprises the following steps of site fencing, traffic guidance, pipeline cutting and modification, site arrangement, monitoring point location distribution and control, underground diaphragm wall construction, precipitation well arrangement, foundation pit excavation, monitoring data analysis, precipitation step, support installation and main body construction; the above-ground three-dimensional environment comprises: building structures, terrains, landscape greening, urban parts, street lamp signboards, bridges, rivers, foundation pit construction sites, mechanical equipment and building materials on the periphery; the subsurface three-dimensional environment includes: peripheral underground building structures, underground pile foundations, underground pipe networks, underground drill holes, underground water and underground water precipitation wells; the foundation pit database storage information comprises: the method comprises the following steps of (1) constructing a ground wall, a cast-in-place pile, a jet grouting pile, a support, a main building, monitoring a point position, surveying a borehole and water well parts inside and outside a foundation pit; the surface space data storage information comprises: house data, current land data, planning red lines, road traffic networks, pipe network data and place name addresses; the construction content of the parts comprises the following steps: the work contents of site arrangement, key link implementation, side station supervision and quality control are carried out; the floor layout content includes: the method comprises the following steps of (1) carrying out site curtain and traffic guidance before construction, switching of underground pipe networks, and spatial deployment of site rest office rooms and mechanical equipment; the monitoring and controlling content comprises the following steps: peripheral building settlement displacement monitoring stationing, peripheral ground settlement displacement monitoring stationing, nearby ground water level monitoring stationing, underground continuous wall settlement and horizontal displacement monitoring stationing, underground building settlement and horizontal displacement monitoring stationing, support and strut axial force monitoring stationing.