CN115033963A - Method for establishing curtain grouting BIM model based on 3DE - Google Patents
Method for establishing curtain grouting BIM model based on 3DE Download PDFInfo
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- CN115033963A CN115033963A CN202210676580.0A CN202210676580A CN115033963A CN 115033963 A CN115033963 A CN 115033963A CN 202210676580 A CN202210676580 A CN 202210676580A CN 115033963 A CN115033963 A CN 115033963A
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Abstract
The invention relates to the technical field of hydroelectric engineering modeling, and provides a method for establishing a curtain grouting BIM model based on 3DE (three-dimensional empirical mode decomposition), which is used for facilitating the establishment of a real curtain grouting BIM model and quickly extracting required information, and comprises the following steps: step 1, establishing a basic model; step 2, generating the central surface and the curtain grouting holes of each layer of impervious curtain, and adding an identifier to each curtain grouting hole; step 3, carrying out secondary editing on the curtain grouting hole to generate a curtain grouting hole with information, and recording the information corresponding to the curtain grouting hole into an auxiliary specification parameter table; and 4, automatically extracting the information of the curtain grouting hole according to the requirement. The model established by the steps is detailed in information, is fit with the actual field, is convenient for engineering information management, and lays a foundation for subsequently establishing a BIM4D/5D model of curtain grouting engineering.
Description
Technical Field
The invention relates to the technical field of hydroelectric engineering modeling, in particular to a method for establishing a curtain grouting BIM model based on 3 DE.
Background
In the domestic and foreign water and water conservancy and hydropower engineering, curtain grouting is used as a main means for the foundation anti-seepage treatment of hydraulic buildings, and plays an important role in ensuring safe water storage and power generation of reservoirs and safe operation of the hydraulic buildings in the operation period.
In the traditional two-dimensional seepage control design, a curtain grouting drawing is mainly expressed in a two-dimensional mode and comprises a tangent plane drawing, an axis expansion section drawing, a vertical axis typical longitudinal section drawing and the like, the result is not clear and visual enough, and the specific space position, grouting sequence, grouting parameters and the like of a curtain grouting hole are simpler.
In recent years, with scientific and technological progress and national advocated, the BIM technology is more and more applied to hydraulic and hydroelectric engineering construction, but most of projects only realize simple modeling and rollover of the BIM technology, and a few projects reach the forward design standard, but also stop at three-dimensional visualization of the projects. The generated BIM model only partially expresses geometric information of a building structure, a lot of geometric information is difficult to query, extract and calculate and analyze, other non-geometric information such as construction sequence, process parameters and the like is not involved basically, and finally, effective information extracted by a user is even less than a two-dimensional drawing, which is obviously not a real BIM 3D model and also hinders the construction of a subsequent BIM4D/5D model. The current curtain grouting model is the same, basically stays at a three-dimensional visual level, and does not reflect the real function of the BIM technology.
Disclosure of Invention
In order to establish a real curtain grouting BIM model and quickly extract required information, a method for establishing the curtain grouting BIM model based on 3DE is provided.
The technical scheme adopted by the invention for solving the problems is as follows:
a method for building curtain grouting BIM based on 3DE comprises the following steps:
step 1, establishing a basic model for laying curtain grouting holes, wherein the basic model comprises a top boundary and a bottom boundary of each layer of impervious curtain;
step 2, selecting a top boundary and a bottom boundary of the impervious curtain, inputting curtain grouting hole layout parameters, automatically generating a central surface and curtain grouting holes of each layer of impervious curtain according to the curtain grouting hole layout parameters, and attaching an identifier to each curtain grouting hole;
step 3, inputting required information items, positioning the curtain grouting holes through identifiers, secondarily editing the curtain grouting holes according to input contents to generate curtain grouting holes with information, and inputting information corresponding to the curtain grouting holes into an auxiliary specification parameter table;
and 4, automatically extracting the information of the curtain grouting hole according to the requirement.
Further, after the step 1 of establishing the basic model, the method further comprises the following steps: and checking whether the basic model meets the design requirements.
Furthermore, the layout parameters of the curtain grouting holes comprise a depression angle, a row number, a row spacing and a hole spacing.
Further, the specific steps of generating the central surface of each layer of impervious curtain and the curtain grouting hole according to the curtain grouting hole layout parameters are as follows: generating a central plane of each layer of impervious curtain according to the depression angle of the curtain grouting hole and the top boundary and the bottom boundary of each layer of impervious curtain; generating the central plane of the corresponding upstream row/middle row/downstream row impervious curtain according to the row number and row spacing of the curtain grouting holes and the central plane of each layer of impervious curtain; and generating a curtain grouting hole according to the central surface and the hole distance of each row of the anti-seepage curtains.
Further, when the curtain grouting holes are generated, the top boundary of the impervious curtain is divided into a straight section and a corner section, the hole sites of the curtain grouting holes in the straight section are uniformly distributed, and the hole sites of the corner section are gradually distributed.
Further, the calculation mode of the number k of the holes distributed on the straight section is as follows:
where s represents the top boundary length, x represents the pitch, and a represents the number of gradation corrections.
Further, a is 2 or 3.
Further, the calculation mode of the number i of the holes distributed on the corner section is as follows: preliminary simulation
If the hole bottom distance w of the corner section is less than or equal to 1.5x (i-1), then curtain grouting holes are uniformly distributed, otherwise,
further, generating the curtain grouting holes with the information in the step 3 further comprises classifying the grouting holes according to geological information.
Compared with the prior art, the invention has the beneficial effects that: by adopting the method, the real curtain grouting BIM model can be automatically generated according to the cloth hole parameters and the additional information items, compared with the existing general three-dimensional visual model, the effective information is complete and detailed, the expression integrity of the curtain grouting engineering entity and the functional characteristics is greatly improved, the curtain grouting engineering entity and the functional characteristics are fit for on-site actual construction, and engineering information management and quality and efficiency improvement on the basis of the engineering information management are facilitated.
Drawings
FIG. 1 is a flow chart of a method for building curtain grouting BIM model based on 3 DE.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, a method for building curtain grouting BIM model based on 3DE includes:
step 1, establishing a basic model for laying curtain grouting holes; the basic model can be automatically generated according to the design parameters, and the existing model can also be quoted. The basic model comprises a top boundary and a bottom boundary of each layer of impervious curtain, a dam foundation plane, a bad geologic body, a seepage control plane and the like.
In order to ensure the accuracy of the final model and the smooth proceeding of the modeling process, after the basic model is established, the geometric inspection needs to be carried out on the basic model, if the basic model meets the design requirements, the subsequent steps are executed, and if the basic model does not meet the design requirements, designers are prompted to carry out modification and adjustment in time.
And 2, inputting curtain grouting hole layout parameters including a depression angle, a row number, a row pitch, a hole pitch and the like, generating the central surface of each layer of impervious curtain and the curtain grouting holes according to the curtain grouting hole layout parameters, and attaching an identifier to each curtain grouting hole. The method specifically comprises the following steps: generating a central plane of each layer of impervious curtain according to the depression angle of the curtain grouting hole and the top boundary and the bottom boundary of each layer of impervious curtain; generating the central surface of the corresponding upstream row/middle row/downstream row impervious curtain according to the row distance of the curtain grouting holes and the central surface of each layer of impervious curtain; generating curtain grouting holes according to the central plane, the hole distribution direction, the hole distance and the hole diameter of each row of the impervious curtains; and an identifier is added to the curtain grouting hole, so that the curtain grouting hole is convenient to position in the subsequent use process.
The deep-hole curtain is drilled from top to bottom, the top boundary is located in the grouting flat hole, the space position of the top boundary and the end point of the orifice generated on the top boundary have practical significance for site construction, and in order to more reasonably and uniformly arrange the curtain holes, the embodiment divides the top boundary of the anti-seepage curtain into a straight section and a corner section when the curtain grouting hole is generated, the hole sites of the straight section curtain grouting holes are uniformly distributed, and the hole sites of the corner section are gradually distributed. The calculation mode of the number k of the holes distributed on the straight section is as follows:
wherein s represents the top boundary length, x represents the pitch, and a represents the number of gradual modification corrections; in order to ensure that the corner section has enough length to meet the requirement of hole distribution gradual change, a can be 2 or 3; the calculation mode of the number i of the holes distributed on the corner section is as follows: preliminary simulation
If the hole bottom distance w of the corner section is less than or equal to 1.5x (i-1), curtain grouting holes are uniformly distributed, otherwise,
for example: the length of the top boundary is 104.6m, the pitch of the holes is 2m, 104.6/2 is rounded downwards and reduced by 2 to 50, and the straight section is 100m and has 51 holes; and 4.6m of corner section, preliminarily arranging 3 holes, extracting the distance of the hole bottoms, if the distance is not more than (1.5 times of the hole distance multiplied by 2), arranging according to the distance, and otherwise, rounding up the number of the arranged holes according to the distance/the hole distance of the hole bottoms.
And 3, inputting required information items, positioning the curtain grouting holes through the identifiers, secondarily editing the curtain grouting holes according to input contents to automatically generate curtain grouting holes with information, and inputting information corresponding to the curtain grouting holes into an auxiliary specification parameter table. The input information items may include: hole length, pile number, pore diameter, hole order, azimuth, grouting subsection, grouting pressure, orifice bottom space position, maximum allowable deviation per subsection bottom, and the like. If the geometric information of the curtain grouting hole, including the hole length, the azimuth angle, the hole bottom space position of the hole opening and the like, can be extracted, and the information is recorded into an auxiliary specification parameter table; grouting segments can be generated on the basis of the generated curtain grouting holes, and segment information, maximum allowable deviation of hole bottoms per segment and the like are recorded into an auxiliary specification parameter table; generating a curtain grouting hole enveloping body according to the aperture; the orifice end points with different colors can be generated according to the hole order and are collected into an integration so as to clearly and intuitively distinguish the distribution condition of the first order holes, the second order holes and the third order holes.
Furthermore, grouting holes can be classified according to geological information, for example, curtain grouting holes are divided into a foundation drilling section and a concrete drilling section according to a dam building base plane so as to guide field drilling, and each grouting section is colored and numbered so as to be convenient for linking a grouting recorder during construction and automatically inputting grouting process information; corresponding grouting subsections can be automatically searched and marked according to the spatial distribution of the poor geologic body, and the important attention in the actual grouting process is facilitated.
And 4, re-inputting the layout parameters or required information items of the curtain grouting holes, secondarily modifying the built curtain grouting BIM, checking the model, obtaining a final curtain grouting BIM after confirming that the design requirements are met, and automatically extracting required information according to the requirements for two-dimensional plotting, progress analysis, cost analysis and the like.
Claims (9)
1. A method for establishing a curtain grouting BIM model based on 3DE is characterized by comprising the following steps:
step 1, establishing a basic model for laying curtain grouting holes, wherein the basic model comprises a top boundary and a bottom boundary of each layer of impervious curtain;
step 2, selecting the top boundary and the bottom boundary of the impervious curtain, inputting curtain grouting hole layout parameters, automatically generating the central surface and the curtain grouting holes of each layer of impervious curtain according to the curtain grouting hole layout parameters, and adding an identifier to each curtain grouting hole;
step 3, inputting required information items, positioning the curtain grouting holes through identifiers, secondarily editing the curtain grouting holes according to input contents to generate curtain grouting holes with information, and inputting information corresponding to the curtain grouting holes into an auxiliary specification parameter table;
and 4, automatically extracting the information of the curtain grouting hole as required.
2. The method for building curtain grouting BIM based on 3DE as claimed in claim 1, wherein after building the base model in step 1, the method further comprises: and checking whether the basic model meets the design requirements.
3. The method for building curtain grouting BIM model based on 3DE as claimed in claim 1, wherein the curtain grouting hole layout parameters include dip angle, row number, row spacing and hole spacing.
4. The method for building a curtain grouting BIM model based on 3DE as claimed in claim 3, wherein the specific steps of generating the central surface of each layer of impervious curtain and the curtain grouting hole according to the curtain grouting hole layout parameters are as follows: generating a central plane of each layer of impervious curtain according to the depression angle of the curtain grouting hole and the top boundary and the bottom boundary of each layer of impervious curtain; generating the central plane of the corresponding upstream row/middle row/downstream row impervious curtain according to the row number and row spacing of the curtain grouting holes and the central plane of each layer of impervious curtain; and generating a curtain grouting hole according to the central surface and the hole distance of each row of the anti-seepage curtains.
5. The method for building a curtain grouting BIM model based on 3DE as claimed in claim 4, wherein, when generating the curtain grouting holes, the top boundary of the impervious curtain is divided into a straight section and a corner section, the hole sites of the straight section curtain grouting holes are uniformly distributed, and the hole sites of the corner section are gradually distributed.
6. The method for establishing the curtain grouting BIM based on the 3DE as claimed in claim 5, wherein the number k of the straight section holes is calculated in a manner that:
where s represents the top boundary length, x represents the pitch, and a represents the number of gradation corrections.
7. The method for building curtain grouting BIM model based on 3DE as claimed in claim 6, wherein a is 2 or 3.
8. The method for establishing the curtain grouting BIM model based on the 3DE as claimed in claim 5, wherein the number i of the corner section holes is calculated in a mode that: first design
If the hole bottom distance w of the corner section is less than or equal to 1.5x (i-1), curtain grouting holes are uniformly distributed, otherwise,
9. the method for building curtain grouting BIM based on 3DE as claimed in any one of claims 1-8, wherein the step 3 of generating curtain grouting holes with information further comprises classifying the grouting holes according to geological information.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115859453A (en) * | 2023-02-24 | 2023-03-28 | 陕西华邦建设工程有限公司 | BIM-based foundation waterproof curtain design method and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115859453A (en) * | 2023-02-24 | 2023-03-28 | 陕西华邦建设工程有限公司 | BIM-based foundation waterproof curtain design method and system |
| CN115859453B (en) * | 2023-02-24 | 2023-04-28 | 陕西华邦建设工程有限公司 | BIM-based foundation waterproof curtain design method and system |
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