CN112733224B - Simulation pile sinking construction method for dense pile group - Google Patents
Simulation pile sinking construction method for dense pile group Download PDFInfo
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Abstract
The invention discloses a simulation pile sinking construction method for a dense pile group, which comprises the following steps: s1, establishing a model to provide a real basis for subsequent collision detection; s2, integrating the models, and adjusting the relative position relation among the dense pile group, the pile driving ship and the seabed model; s3, verifying the space relation of the dense pile group: carrying out spatial relationship verification on the dense pile group through software; s4, analyzing the minimum pile spacing, and finally forming a model with the relative position, elevation and size information of the grouped piles; s5, 3D model printing: printing the model obtained in the step S4 by using a 3D printing technology to respectively obtain 3D printing models of the dense pile group, the piling ship and the seabed model; and S6, pile sinking sequence verification. The invention not only solves the problem of collision between piles, but also solves the problem of collision between a ship body and a sunk pile in the piling process, can check the pile position accuracy of the sunk pile, introduces the minimum pile spacing early warning adjustment, and can better guide construction.
Description
Technical Field
The invention relates to the technical field of pile sinking construction, in particular to a simulation pile sinking construction method for a dense pile group.
Background
During the construction of the high-pile wharf in port engineering, when dense pile groups are constructed, pile collision often occurs, so that the construction cannot be carried out, or the pile groups are too dense, the ship body or the anchoring position of a pile driving ship collides with the constructed pile foundation, so that the pile driving position cannot be entered, and pile sinking operation of the dense pile groups cannot be completed. Therefore, for dense pile group construction, pile sinking collision simulation and construction flow simulation need to be performed in advance.
Because the minimum distance calculation formula of the piles is complex and the calculation amount is large, the pile foundation collision of the dense pile group is mainly detected by simulation, for example, the early sand table simulation is utilized, or the pile collision phenomenon is found by utilizing the BIM technology three-dimensional modeling.
Although the sand table simulation can simulate pile sinking construction, the pile sinking simulation adopts a simple pile sinking positioner to simulate pile sinking due to low sand table simulation precision, the artificial interference is large, the precision is limited, and the pile deviation cannot be timely and accurately adjusted in the pile sinking process; the BIM technology three-dimensional modeling is mainly used for carrying out pile position three-dimensional simulation for design units and construction units to avoid pile foundation collision, but cannot provide specific guidance for whether a piling ship can enter into the pile position for construction.
Disclosure of Invention
The invention aims to solve at least one of the technical problems in the prior art, and provides a simulation pile sinking construction method for dense pile groups, so as to solve the problems of pile foundation collision in the pile driving process, incapability of enabling a pile driving ship to enter a pile driving position and subsequent pile foundation collision caused by pile sinking deviation in the pile sinking process.
The technical scheme adopted by the invention is as follows: a simulation pile sinking construction method for dense pile groups comprises the following steps:
s1, establishing a model: respectively establishing a dense pile group, a pile driving ship and a seabed model in software by combining a pile position design drawing, pile driving ship construction characteristics and an underwater topographic map, and simultaneously establishing the type, size and position information of piles in the dense pile group, so as to provide a real basis for subsequent collision detection;
s2, integrating the models: integrating the dense pile group, the piling ship and the seabed model through software, establishing a project base point and a measuring point, and adjusting the relative position relation among the dense pile group, the piling ship and the seabed model;
s3, verifying the space relation of the dense pile group: carrying out spatial relationship verification on the dense pile group through software, and detecting the pile group design deviation condition in advance; performing hard collision analysis on the dense pile group by using a collision detection function of software, directly and synchronously modifying and updating in the software when a collision pile is detected, generating an adjustment angle and distance information report, and performing early warning by combining with a maximum allowable deviation value of a pile sinking position;
s4, minimum pile spacing analysis: analyzing the minimum pile spacing of the outer edge of the dense pile group pile body in the spatial position through the shortest distance function in the measuring tool of the software, analyzing whether the operation space required by the construction process can meet the requirement, synchronously modifying and updating the software if the operation space needs to be adjusted, generating an adjustment angle and distance information report, and finally forming a model with the relative position, elevation and size information of the pile group;
s5, 3D model printing: printing the model obtained in the step S4 by using a 3D printing technology to respectively obtain 3D printing models of the dense pile group, the piling ship and the seabed model;
s6, pile sinking sequence verification: and verifying the pile sinking sequence by using the 3D printing model, wherein the pile sinking sequence comprises the verification of the moving sequence and the anchoring position of the pile driving ship, and when the pile driving ship cannot move or has no space for anchoring, readjusting the pile sinking sequence, and revising the pile position design drawing if the collision current situation still exists by repeatedly adjusting the pile sinking sequence until the simulation of the pile sinking sequence is completed.
Further, in step S5, a pile position hole is reserved in the seabed model for inserting the pile.
Further, in step S6, a GPS positioning device is provided on the pile driving vessel.
Further, the pile driving boat includes vertical support bar, pile cover, horizontal calibrated scale and perpendicular calibrated scale, the hull of pile driving boat with the vertical sliding connection of vertical support bar, be equipped with the first scale that is used for simulating the draft on the vertical support bar, vertical support bar upper portion is equipped with horizontal bracing piece, is equipped with the second scale that is used for confirming the boats and ships position on the horizontal bracing piece, the pile cover is used for suit pile model and rotates the setting and is in on the pile driving boat, the rotation center of perpendicular calibrated scale with the rotation center of pile cover sets to the coincidence, the horizontal calibrated scale sets up on the vertical support bar.
Has the advantages that: in the invention, the wharf pile group model is established to carry out three-dimensional space verification, pile sinking deviation allowable maximum error analysis, 3D printing and real-scene simulation secondary verification, and pile inserting and driving simulation to determine ship coordinates and anchor dropping, so that pile position and procedure dynamic adjustment can be more intuitively and accurately carried out. Compared with sand table simulation, the artificial interference factor is greatly reduced, the precision is higher, and BIM is introduced to calculate the minimum pile spacing for early warning and deviation correction. Compared with the BIM technology, the method is more intuitive, not only solves the problem of collision between piles, but also solves the problem of collision between a ship body and a sunk pile in the piling process, can check the pile position accuracy of the sunk pile, introduces the minimum pile spacing early warning adjustment, and can better guide construction.
Drawings
The invention is further illustrated with reference to the following figures and examples:
fig. 1 is a flow chart illustrating steps of a simulation pile sinking construction method for dense pile groups according to an embodiment of the present invention;
fig. 2 is a schematic structural view of the pile driving vessel.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 and 2, the invention provides a simulation pile sinking construction method for dense pile groups, which comprises the following steps:
s1, establishing a model: respectively establishing a dense pile group, a pile driving ship and a seabed model in software by combining a pile position design drawing, pile driving ship construction characteristics and an underwater topographic map, and simultaneously establishing the type, size and position information of piles in the dense pile group, so as to provide a real basis for subsequent collision detection;
s2, integrating the models: integrating the dense pile group, the piling ship and the seabed model through software, establishing a project base point and a measuring point, and adjusting the relative position relation among the dense pile group, the piling ship and the seabed model;
s3, verifying the space relation of the dense pile group: carrying out spatial relationship verification on the dense pile group through software, and detecting the pile group design deviation condition in advance; performing hard collision analysis on the dense pile group by using a collision detection function of software, directly and synchronously modifying and updating in the software when a collision pile is detected, generating an adjustment angle and distance information report, and performing early warning by combining with a maximum allowable deviation value of a pile sinking position;
s4, minimum pile spacing analysis: analyzing the minimum pile spacing of the outer edge of the dense pile group pile body in the spatial position through the shortest distance function in the measuring tool of the software, analyzing whether the operation space required by the construction process can meet the requirement, synchronously modifying and updating the software if the operation space needs to be adjusted, generating an adjustment angle and distance information report, and finally forming a model with the relative position, elevation and size information of the pile group;
s5, 3D model printing: printing the model obtained in the step S4 by using a 3D printing technology to respectively obtain 3D printing models of the dense pile group, the piling ship and the seabed model;
s6, pile sinking sequence verification: and verifying the pile sinking sequence by using the 3D printing model, wherein the pile sinking sequence comprises the verification of the moving sequence and the anchoring position of the pile driving ship, and when the pile driving ship cannot move or has no space for anchoring, readjusting the pile sinking sequence, and revising the pile position design drawing if the collision current situation still exists by repeatedly adjusting the pile sinking sequence until the simulation of the pile sinking sequence is completed.
The invention mainly aims to solve the problems of pile foundation collision in the pile driving process, incapability of enabling a pile driving ship to enter a pile driving position and subsequent pile foundation collision caused by pile sinking deviation in the pile sinking process. The method comprises the steps of carrying out three-dimensional space verification, pile sinking deviation allowable maximum error analysis, 3D printing and real-scene simulation secondary verification and simulation pile inserting and driving to determine ship coordinates and break down through establishing a wharf pile group model, and carrying out dynamic adjustment on pile positions and procedures more intuitively and accurately. Compared with sand table simulation, the artificial interference factor is greatly reduced, the precision is higher, and BIM is introduced to calculate the minimum pile spacing for early warning and deviation correction. Compared with the BIM technology, the method is more intuitive, not only solves the problem of collision between piles, but also solves the problem of collision between the hull 100 and the sunk pile in the piling process, can check the pile position accuracy of the sunk pile, introduces the minimum pile spacing early warning adjustment, and can better guide construction.
Further, in step S5, a pile position hole is reserved in the seabed model for inserting the pile.
Further, in step S6, a GPS positioning device is provided on the pile driving vessel.
Further, the piling ship comprises a vertical support rod 110, a pile sleeve 130, a horizontal dial 150 and a vertical dial 140, a ship body 100 of the piling ship is vertically and slidably connected with the vertical support rod 110, a first graduated scale used for simulating draft is arranged on the vertical support rod 110, the upper portion of the vertical support rod 110 is provided with the horizontal support rod, a second graduated scale used for determining the position of a ship is arranged on the horizontal support rod, the pile sleeve 130 is used for sleeving a pile model and is rotatably arranged on the piling ship, the rotating center of the vertical dial 140 is coincident with the rotating center of the pile sleeve 130, and the horizontal dial 150 is arranged on the vertical support rod 110.
In the concrete embodiment, the invention relates to a BIM-based wharf dense inclined steel pipe group pile simulation pile sinking construction method, which is used for performing three-dimensional space verification, pile sinking deviation allowable maximum error analysis, 3D printing and real-scene simulation secondary verification and simulation of inserting and beating a pile foundation to determine ship coordinates and anchor dropping by establishing a wharf group pile BIM model, and performing dynamic adjustment on a pile position and a process more intuitively and accurately. The specific implementation steps are as follows:
1. dense pile groups of a wharf, piling ship equipment and a seabed model are respectively established by combining Revit, tekla and civil 3D multi-source software with a wharf pile position design drawing, main construction characteristics of a piling ship and an underwater topographic map, and the model proportion is designed according to the following steps of 1: and 1, establishing, including pile group models, sizes and position information, and providing a real basis for subsequent soft and hard collision detection.
2. Integrating the models established by the software sources through Revit, adjusting the relative position relation of the software models in a mode of establishing project base points and measuring points in the Revit model, and adjusting the material information and the model geometric information to be consistent with the design.
3. Importing the adjusted model into navisworks software, verifying the spatial relation of the grouped piles, and detecting the deviation condition of the grouped pile design in advance; and performing hard collision analysis on the dense inclined pile group by using a navisworks software collision detection function in cooperation with Revit software, directly modifying and updating the Revit software synchronously when detecting that a collision pile exists, and generating an angle and distance adjustment information report. And (4) early warning is carried out by combining the maximum allowable deviation value of the pile position of the pile sinking.
4. Analyzing the minimum pile spacing of the outer edge of the dense inclined pile group pile body in the spatial position by using the shortest distance function in a measuring tool in the navisworks software, analyzing whether the operation space required by the construction process can meet the requirement, synchronously modifying and updating in Revit software if the operation space is required to be adjusted, generating an adjustment angle and distance information report, and finally forming a model with the relative position, elevation and size information of the group pile.
5. Converting the integrated model, exporting an FBX format file, transferring the file into SLA photosensitive 3D printer software to print model components, and respectively printing out seabed geology, piles and solid components of a pile driving ship, wherein the printing proportion is set as 1:100, the precision is 0.025mm, wherein the seabed model is reserved with adjusted pile position holes, so that the pile sinking process entity verification is facilitated.
6. Welding an iron box with the length, the width and the height corresponding to the 3D model by using a common steel plate, wherein the top of the iron box is provided with an opening; scales with scales are respectively stuck at the top positions and the vertical positions of the periphery of the iron box, and the actual proportion of the scales corresponding to the site is also 1:100 (made according to the actual condition). According to the coordinate system conversion, the specific position on the iron box is converted, corresponding to the actual coordinates on site, and the coordinate points of the model on the iron box can be directly converted into the specific coordinate points on site.
7. And manufacturing a pile driving ship positioner, and determining the position of the pile driving ship during pile sinking. The method comprises the steps that a pile driving ship model is manufactured according to the proportion of 1:100, a vertical support rod 110 is manufactured at a specific point in the middle of the pile driving ship model (the position of a GPS positioning device can be installed corresponding to an actual pile driving ship), and a first graduated scale is pasted on the vertical support rod so as to simulate draught of ships with different water depths. Specifically, a nut 120 is arranged on the hull 100, an external thread is arranged on the periphery of the vertical support rod 110, and the vertical support rod 110 is mounted with the hull 100 in a threaded connection manner, so that the vertical position adjustment of the hull 100 is realized. The upper portion of the vertical support rod 110 is provided with a horizontal support rod, and specifically, a through hole for the horizontal support rod to pass through is formed in the top of the vertical support rod 110, so that the horizontal support rod is fixedly installed. A second graduated scale is pasted on the transverse support and placed on the iron box, and then the position of the ship is determined through the second graduated scale. The horizontal dial 150 and the vertical dial 140 are arranged on the pile driving ship model, and the horizontal dial 150 and the vertical dial 140 respectively correspond to the rotation angle and the slope of the pile so as to ensure the accuracy of simulating pile sinking. The pile form is placed into the pile sleeve 130 of the piling vessel form and clamped in place. After coordinate conversion, the simulated ship shape on the vertical supporting rod 110 is moved according to the scales, and the ship draft is simulated. The transverse support rod is moved, and when the pile enters the vicinity of the reserved pile hole, the clamp on the pile sleeve 130 is released to slide the pile model into the pile position hole. During the movement, whether the hull 100 collides with the sunk pile, if not, and is convenient to break down, the pile number and the position of the piling ship are recorded. And pulling out the pile sinking model of the ship position, moving out the pile driving ship model, and inserting the pile model into the pile position again. The position of the pile driving ship is converted into a construction coordinate through a coordinate system, and a GPS is used as checking data for pile sinking positioning in site construction. If a collision with a sunk pile occurs or displacement of the ship is influenced or anchor dropping is influenced, the sunk pile sequence is readjusted. If the collision status still exists in the repeated adjustment sequence, the communication design revises the sunk position again.
8. Recording pile sinking information in real time in the pile sinking operation process, and leading the pile sinking information into navisworks software to be compared with the input design pile position information; and setting a deviation limit in software, and if the actual pile sinking information conforms to the design deviation limit value, displaying the pile body in green, and if the actual pile sinking information exceeds the limit value, displaying the pile body in red, visually feeding back the form of the pile sinking, dynamically updating the deviation information, and guiding the pile driving ship to perform fine adjustment on post pile sinking construction in real time so as to ensure the construction quality.
The following are the advantages of the present application over the prior art:
1. the minimum pile spacing of the oblique crossing of the pile bodies of the dense oblique pile group is analyzed by using navisworks, whether the allowable operation space of the construction process can meet the requirement is analyzed, compared with the original extremely complex manual calculation, the method is quicker, and the needed pile body model can be selected for direct judgment.
2. The method comprises the steps of manufacturing an entity 3D printing model of a reserved pile position hole, reducing a scale reduction construction site, simulating and verifying an actual pile sinking process of the steel pipe pile, estimating process arrangement rationality of an operation process and influence of surrounding environment on operation, and preventing construction risks in advance; compared with a common scale, the 3D printing is supported by a model, the model is more convenient to manufacture, the model can be formed in 2 days, the precision of the solid model is more accurate, and the judgment on the process arrangement and the operation mode is more facilitated.
3. The design of the pile driving ship model can accurately simulate the pile sinking angle and the slope and accurately simulate the draught of a ship.
4. And (3) accurately positioning the pile driving ship model, converting and converting a coordinate system, and using a GPS as verification data for pile driving positioning in site construction.
5. The application of the BIM technology comprises the steps of inputting pile sinking parameters, defining pile sinking states with clear colors, tracking the actual pile position of each steel pipe pile in real time in the pile sinking process, correcting the deviation in time, guiding a pile driving ship to conduct fine adjustment on post pile sinking construction in real time, and providing more safety guarantee for the actual pile sinking of the steel pipe pile in the later period by an informatization means.
While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (4)
1. A simulation pile sinking construction method for dense pile groups is characterized by comprising the following steps:
s1, establishing a model: respectively establishing a dense pile group, a pile driving ship and a seabed model in Revit software by combining a pile position design drawing, pile driving ship construction characteristics and an underwater topographic map, and simultaneously establishing the type, size and position information of piles in the dense pile group to provide a real basis for subsequent collision detection;
s2, integrating the models: integrating the dense pile group, the pile driving ship and the seabed model through Revit software, establishing a project base point and a measuring point, and adjusting the relative position relation among the dense pile group, the pile driving ship and the seabed model;
s3, verifying the space relation of the dense pile group: carrying out spatial relationship verification on the dense pile group through navisworks software, and detecting the pile group design deviation condition in advance; performing hard collision analysis on dense pile groups by using a collision detection function of navisworks software, directly and synchronously modifying and updating in Revit software when collision piles are detected, generating an adjustment angle and distance information report, and performing early warning by combining with a maximum deviation value allowed by pile sinking positions;
s4, minimum pile spacing analysis: analyzing the minimum pile spacing of the outer edge of the dense pile group pile body in the spatial position through the shortest distance function in a measuring tool of navisworks software, analyzing whether the operation space required by the construction process can meet the requirement, synchronously modifying and updating Revit software if the operation space is required to be adjusted, generating an adjustment angle and distance information report, and finally forming a model with the relative position, elevation and size information of the pile group;
s5, 3D model printing: printing the model obtained in the step S4 by using a 3D printing technology to respectively obtain 3D printing models of the dense pile group, the piling ship and the seabed model;
s6, pile sinking sequence verification: and verifying the pile sinking sequence by using the 3D printing model, wherein the pile sinking sequence comprises the verification of the moving sequence and the anchoring position of the pile driving ship, and when the pile driving ship cannot move or has no space for anchoring, readjusting the pile sinking sequence, and revising the pile position design drawing if the collision current situation still exists by repeatedly adjusting the pile sinking sequence until the simulation of the pile sinking sequence is completed.
2. The dense pile group pile sinking simulation construction method according to claim 1, wherein: in step S5, a pile position hole is reserved in the seabed model for inserting a pile.
3. The dense pile group pile sinking simulation construction method according to claim 1, wherein: in step S6, the pile driving ship is provided with a GPS positioning device.
4. The dense pile group pile sinking simulation construction method according to claim 3, wherein: pile driving boat includes vertical support bar, pile cover, horizontal calibrated scale and perpendicular calibrated scale, pile driving boat's hull with the vertical sliding connection of vertical support bar, be equipped with the first scale that is used for simulating the draft on the vertical support bar, vertical support bar upper portion is equipped with horizontal bracing piece, is equipped with the second scale that is used for confirming the boats and ships position on the horizontal bracing piece, the pile cover is used for suit pile model and rotates the setting and is in on the pile driving boat, the center of rotation of perpendicular calibrated scale with the center of rotation of pile cover sets to the coincidence, the horizontal calibrated scale sets up on the vertical support bar.
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