CN112668076A - Multi-order high slope comprehensive information construction method for soil-rock combined stratum - Google Patents
Multi-order high slope comprehensive information construction method for soil-rock combined stratum Download PDFInfo
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- CN112668076A CN112668076A CN202011509588.5A CN202011509588A CN112668076A CN 112668076 A CN112668076 A CN 112668076A CN 202011509588 A CN202011509588 A CN 202011509588A CN 112668076 A CN112668076 A CN 112668076A
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- 238000010276 construction Methods 0.000 title claims abstract description 67
- 239000011435 rock Substances 0.000 title claims abstract description 28
- 238000009412 basement excavation Methods 0.000 claims abstract description 47
- 238000004088 simulation Methods 0.000 claims abstract description 33
- 238000012544 monitoring process Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000013461 design Methods 0.000 claims abstract description 11
- 239000002689 soil Substances 0.000 claims description 26
- 238000006073 displacement reaction Methods 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses a multi-order high slope comprehensive informatization construction method for a soil-rock combined stratum, which comprises the following steps: s1, building a BIM model and a numerical simulation model according to the design and the geological survey data; s2, carrying out BIM model demonstration to determine an excavation boundary and excavation control point coordinates; s3, performing first-order excavation construction on the side slope according to the determined excavation boundary and the excavation control point coordinates on the site, and collecting monitoring data of the side slope in the construction process; s4, updating the BIM model and the numerical simulation model in real time through monitoring data, and performing numerical simulation analysis through the numerical simulation model to optimize the slope of the side slope and a supporting scheme; s5, analyzing and feeding back an optimized construction scheme according to the numerical simulation so as to update the coordinates of the excavation control points and carry out the next-stage excavation; s6, repeating the above steps until the construction is finished; compared with the prior art, the invention improves the construction efficiency and the construction quality of the side slope.
Description
Technical Field
The invention relates to the technical field of slope construction, in particular to a multi-order high slope comprehensive informatization construction method for a soil-rock combined stratum.
Background
In slope engineering, particularly high and steep slopes, multi-step complex slopes, different rock-soil layer compositions and slopes with inconsistent slope rates caused by different types, the design of the slope engineering is often advanced due to uncertainty of geological conditions, so that the design and construction of the high slope engineering under the complex geological conditions must be a dynamic process.
The existing side slope construction is only carried out according to the prior design and the geological survey data, so that reworking and rectification are continuously carried out after problems occur in the construction process, the construction efficiency of the side slope is greatly reduced, and the quality of the finished side slope is also reduced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a multi-order high slope comprehensive informatization construction method for a soil-rock combined stratum, so as to solve the problems of low slope construction efficiency and low quality of constructed slopes in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a multi-order high slope comprehensive informatization construction method for a soil-rock combination stratum comprises the following steps:
s1, building a BIM model and a numerical simulation model according to the design and the geological survey data;
s2, carrying out BIM model demonstration to determine an excavation boundary and excavation control point coordinates;
s3, performing first-order excavation construction on the side slope according to the determined excavation boundary and the excavation control point coordinates on the site, and collecting monitoring data of the side slope in the construction process;
s4, updating the BIM model and the numerical simulation model in real time through monitoring data, and performing numerical simulation analysis through the numerical simulation model to optimize the slope of the side slope and a supporting scheme;
s5, analyzing and feeding back an optimized construction scheme according to the numerical simulation so as to update the coordinates of the excavation control points and carry out the next-stage excavation;
and S6, repeating the steps until the construction is finished.
Compared with the prior art, the invention has the following beneficial effects:
1. the BIM technology, the numerical simulation technology and the field monitoring technology are considered into an information system, a comprehensive informatization construction method is formed, the side slope construction is guided together, the stability and the stress condition during the side slope construction period are judged more accurately, and the response is more timely.
2. The comprehensive information construction method formed by the BIM technology, the numerical simulation and the field monitoring can guide a construction field in real time and accurately judge the future change trend of the side slope.
3. The support and the construction scheme can be adjusted in real time according to actual conditions, so that the slope stability control is safer and more economic, the support of the slope is more practical, and the construction efficiency and the construction quality of the slope are higher.
Drawings
FIG. 1 is a construction flow chart of the present invention.
Detailed Description
The present invention will be described in further detail below by way of specific embodiments:
as shown in FIG. 1, the invention provides a multi-stage high slope comprehensive informatization construction method for a soil-rock combination stratum, which comprises the following steps:
s1, building a BIM model and a numerical simulation model according to the design and the geological survey data;
s2, carrying out BIM model demonstration to determine an excavation boundary and excavation control point coordinates;
s3, performing first-order excavation construction on the side slope according to the determined excavation boundary and the excavation control point coordinates on the site, and collecting monitoring data of the side slope in the construction process;
s4, updating the BIM model and the numerical simulation model in real time through monitoring data, and performing numerical simulation analysis through the numerical simulation model to optimize the slope of the side slope and a supporting scheme;
s5, analyzing and feeding back an optimized construction scheme according to the numerical simulation so as to update the coordinates of the excavation control points and carry out the next-stage excavation;
s6, repeating the above steps until the construction is finished;
s7, the construction numerical information in the whole process is collated to establish a complete data information base of the project, corresponding standard specifications, cautionary matters and other contents are extracted, maintenance after completion is facilitated, and sufficient data support can be provided for similar engineering and later engineering reconstruction.
The specific content of step S1 is as follows:
s11, constructing a BIM model by using the space geometric information of the side slope, the three-dimensional projection and space coordinates of the side slope site, the surrounding buildings and underground pipelines, the three-dimensional projection and space coordinates of the side slope geological condition, the space coordinates of the monitoring point survey station in the side slope construction process and the arrangement position of the survey network, wherein the design and geological survey data mainly comprise the space geometric information of the side slope; other information beneficial to the whole construction process can be included, so that the built BIM model is more practical;
and S12, combining the existing geological survey data and the rock and soil parameters to introduce the BIM into numerical simulation software to build a numerical simulation model.
The BIM model can be established by Revit or Lumion, and the numerical simulation model can be established by Flac3 d.
The monitoring data in the step S3 mainly comprises soil condition of each stage of the side slope, vertical displacement settlement value of the top of the slope, horizontal displacement of the top of the slope, underground water level and horizontal displacement of the deep layer of the slope body, and detection points are reasonably arranged through the data to adjust the slope of the side slope, whether supports are additionally arranged or not and the like; the top of the supporting structure of the side slope is provided with an observation net formed by at least 3 observation points to detect the vertical displacement settlement value and the horizontal displacement of the top of the slope, so that the detection data of the vertical displacement settlement value and the horizontal displacement of the top of the slope are more accurate, and the adjustment can be rapidly made according to the data.
The partial monitoring data in the step S3 may be processed in the following manner:
1. initial value: the preparation work of the slope engineering monitoring work is finished in front of the slope. The value measured at least three consecutive times should be substantially identical before it is determined as the initial value of the item.
2. And (4) observing the vertical displacement settlement of the slope top, wherein a Suyiguan DSZ2 leveling instrument, an FS1 micrometer and an indium tile leveling staff are adopted as an observation instrument.
And observing by adopting secondary leveling measurement, wherein the precision indexes are as follows:
the error in the height difference of the observation point measuring station is less than or equal to +/-0.5 mm;
the close tolerance of the attachment is less than or equal to +/-0.3 mm (n is a station to be tested).
3. Horizontal displacement of the slope top: and establishing a coordinate system by adopting a Zhonghaida ZTS-121R total station, and determining the horizontal displacement by directly observing the coordinate value of the point position. The error in the coordinates of the observation points is not more than +/-1.0 mm.
4. Underground water level change: and observing by a water level meter through a water level observation well. The minimum reading of the water gauge scale is no more than 10 mm.
5. Horizontal displacement of deep layer of slope body: embedding an inclinometer in a soil body outside a slope top, measuring the horizontal displacement of the top of the pipe before observation, and then observing the lateral displacement at each depth by using an inclinometer by taking an upper pipe orifice of the inclinometer as a relative datum point. The precision of the observation point is not less than 1 mm.
Performing numerical simulation analysis in the step S4 to draw a slope deformation trend graph before, during and after each step of excavation so as to judge the subsequent development trend of the slope; and comparing the soil condition of the numerical simulation analysis with the soil condition monitored on site to judge the stability of the side slope so as to reasonably adjust the slope gradient of the side slope and determine whether to add a support measure.
The multi-step high slope comprehensive informatization construction method of the soil-rock combination stratum is suitable for construction of soil-rock combination slopes with the height not exceeding 30m, slopes with variable stratums and multi-step high slopes.
And the slope adjustment of the slope can be adjusted according to the data in table 1 and table 2.
TABLE 1 allowable slope ratio of soil property side slope
Note: 1. the filling material of the gravel soil is cohesive soil in a hard or hard plastic state;
2. for the gravel soil with sandy soil or sandy soil as the filler, the allowable slope rate value of the side slope is determined according to the natural angle of repose of the sandy soil or the gravel soil.
TABLE 2 rock slope ratio allowance
Note: 1. h-slope height;
2. category IV weathering includes very soft rock of various degrees of weathering;
3. the fully weathered rock mass can be taken according to the slope rate of the soil slope.
The excavation principle of the side slope in the multi-order high-slope comprehensive information construction method of the soil-rock combination stratum is as follows:
1. the side slope excavation needs to be carried out according to the requirements of a reverse construction method, the layer, the subsection and the step jump groove excavation are carried out from top to bottom, the falling of blocks of the foundation corners (external corner positions) of the pipe gallery needs to be noticed, the principle of monitoring and controlling while construction is carried out is followed, and the up-and-down overlapping cross operation is avoided.
2. The volume of the earth and stone excavated by the side slope is large, the excavated earth and stone suitable for being used as filler in the pipe gallery foundation is backfilled by utilizing the pipe gallery section of the constructed section as far as possible, and the soil unsuitable for being used as filler and the surplus earth and stone are directly transported to a waste soil yard.
3. The natural gas pipe and the like are arranged in the side slope excavation range, excavation can be carried out on the pipe gallery foundation after the natural gas pipe is moved, and other surrounding buildings (structures), pipelines and the like have certain safety distance from the excavation sideline of the pipe gallery foundation, and safety protection measures are taken according to the actual situation on site.
4. The method comprises the steps of constructing in a side slope excavation mode according to a mechanical excavation mode adopted by an earth-rock construction scheme, excavating according to BIM simulation pay-off points, finishing the side slope by using small machines and pneumatic picks, collecting side slope rock-soil layer information during excavation, modifying rock-soil parameters in a built numerical simulation model according to the latest rock-soil layer information on site, analyzing stability, predicting possible deformation modes of the side slope, monitoring and feeding back slope deformation after excavation is finished, and strictly controlling the quality of the side slope.
The comprehensive information construction method of the multi-step high slope of the soil-rock combined stratum is combined with a slope rate method to construct the multi-step high slope of the soil-rock combined stratum, and the slope rate method comprises the following construction steps:
1. and drawing a displacement monitoring curve graph generated in the excavation process of the side slope at the current stage after excavating for one step according to the design and construction drawing requirements, judging whether the side slope is damaged, and if the side slope is damaged, adjusting the construction scheme in time to support the excavated part.
2. Judging whether stratum information displayed by current excavation is consistent with information displayed by earlier-stage geological exploration or not, if the stratum information displayed by current excavation is changed, immediately adjusting a BIM (building information modeling) model, carrying out numerical simulation again, adjusting a construction scheme according to the work of a construction preparation stage, and rearranging a measuring point measuring net; and on the contrary, the side slope is excavated according to the slope rate specified by the design according to the construction plan formulated in the earlier stage.
3. Analyzing the excavation stages corresponding to the soil-rock interface, the rock stratum and the soil layer interface according to the information of the BIM model, increasing the monitoring frequency of the excavation stages at which the interface is about to appear, updating and adjusting the BIM model according to the stratum, and analyzing and judging the stability of the whole side slope when the excavated surface of the soil-rock combination interface, the rock stratum and the soil layer interface is reached so as to ensure that the construction quality of a special position meets the construction requirements.
4. And after each excavation step, updating the BIM model, making a process animation of the next step, marking the newly added measuring point measuring stations in the model, deriving corresponding models for numerical simulation, analyzing the latest stress and deformation conditions of the slope, and guiding the excavation and support of the next step.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (6)
1. A multi-order high slope comprehensive informatization construction method for a soil-rock combined stratum is characterized by comprising the following steps:
s1, building a BIM model and a numerical simulation model according to the design and the geological survey data;
s2, carrying out BIM model demonstration to determine an excavation boundary and excavation control point coordinates;
s3, performing first-order excavation construction on the side slope according to the determined excavation boundary and the excavation control point coordinates on the site, and collecting monitoring data of the side slope in the construction process;
s4, updating the BIM model and the numerical simulation model in real time through monitoring data, and performing numerical simulation analysis through the numerical simulation model to optimize the slope of the side slope and the supporting scheme;
s5, analyzing and feeding back an optimized construction scheme according to the numerical simulation so as to update the coordinates of the excavation control points and carry out the next-stage excavation;
and S6, repeating the steps until the construction is finished.
2. The multi-stage high slope comprehensive informationized construction method of the soil-rock combination stratum according to claim 1, characterized in that: after the step S6 is completed, the construction numerical information in the whole process is collated to build a complete data information base of the project.
3. The multi-stage high slope comprehensive informationized construction method of the soil-rock combination stratum according to claim 1, characterized in that: the specific content of the step S1 is as follows:
s11, constructing a BIM model by using the space geometric information of the side slope, the three-dimensional projection and space coordinates of the side slope site, the surrounding buildings and underground pipelines, the three-dimensional projection and space coordinates of the side slope geological condition, the space coordinates of the monitoring point survey station in the side slope construction process and the arrangement position of the survey network, wherein the design and geological survey data mainly comprise the space geometric information of the side slope;
and S12, combining the existing geological survey data and the rock and soil parameters to introduce the BIM into numerical simulation software to build a numerical simulation model.
4. The multi-stage high slope comprehensive informationized construction method of the soil-rock combination stratum according to claim 1, characterized in that: the monitoring data in the step S3 mainly comprises soil condition of each stage of the side slope, vertical displacement settlement value of the top of the slope, horizontal displacement of the top of the slope, underground water level and horizontal displacement of the deep layer of the slope; wherein, should set up the observation net that forms by no less than 3 observation points through the supporting construction top at the side slope and detect the vertical displacement settlement value of top of slope and the top of slope horizontal displacement.
5. The multi-stage high slope comprehensive informationized construction method of the soil-rock combination stratum according to claim 1, characterized in that: and in the step S4, performing numerical simulation analysis to draw a slope deformation trend graph before, during and after each step of excavation.
6. The multi-stage high slope comprehensive informationized construction method of the soil-rock combination stratum according to claim 1, characterized in that: and in the step S4, the slope grade and the supporting scheme of the side slope are optimized by comparing the soil condition of the numerical simulation analysis with the soil condition monitored on site.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113832978A (en) * | 2021-10-09 | 2021-12-24 | 中交三航局第三工程有限公司 | Tuff slope anti-weathering excavation method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674819A (en) * | 2015-01-28 | 2015-06-03 | 东北大学 | Informatized construction method of high expressway slope |
| CN105155461A (en) * | 2015-09-24 | 2015-12-16 | 武汉英思工程科技股份有限公司 | High-slope construction dynamic simulation method based on BIM (Building Information Modeling) |
| CN106803149A (en) * | 2017-01-17 | 2017-06-06 | 中铁上海工程局集团有限公司 | Bridge construction information acquisition management method |
| CN107059895A (en) * | 2017-06-08 | 2017-08-18 | 东北大学 | Excavation disturbance Instability of Rock Slope early warning system and method |
| CN107392348A (en) * | 2017-05-31 | 2017-11-24 | 上海市政建设有限公司 | The method optimized using BIM technology to cut-fill transition scheme |
| CN109101763A (en) * | 2018-09-17 | 2018-12-28 | 重庆建工住宅建设有限公司 | A kind of high slope engineering mechanics performance evaluation and information-aided construction method |
| CN111191880A (en) * | 2019-12-13 | 2020-05-22 | 华能澜沧江水电股份有限公司 | Slope full life cycle safety management method based on digital mapping |
| CN111507015A (en) * | 2020-04-28 | 2020-08-07 | 贵州省质安交通工程监控检测中心有限责任公司 | In-service slope technical condition evaluation method |
| CN111506943A (en) * | 2020-03-23 | 2020-08-07 | 中建五局第三建设有限公司 | Method for guiding reinforcing construction of fractured rock mass by three-dimensional geological model |
| CN111967081A (en) * | 2020-08-20 | 2020-11-20 | 广西路桥工程集团有限公司 | Bridge construction management system based on BIM |
-
2020
- 2020-12-19 CN CN202011509588.5A patent/CN112668076A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674819A (en) * | 2015-01-28 | 2015-06-03 | 东北大学 | Informatized construction method of high expressway slope |
| CN105155461A (en) * | 2015-09-24 | 2015-12-16 | 武汉英思工程科技股份有限公司 | High-slope construction dynamic simulation method based on BIM (Building Information Modeling) |
| CN106803149A (en) * | 2017-01-17 | 2017-06-06 | 中铁上海工程局集团有限公司 | Bridge construction information acquisition management method |
| CN107392348A (en) * | 2017-05-31 | 2017-11-24 | 上海市政建设有限公司 | The method optimized using BIM technology to cut-fill transition scheme |
| CN107059895A (en) * | 2017-06-08 | 2017-08-18 | 东北大学 | Excavation disturbance Instability of Rock Slope early warning system and method |
| CN109101763A (en) * | 2018-09-17 | 2018-12-28 | 重庆建工住宅建设有限公司 | A kind of high slope engineering mechanics performance evaluation and information-aided construction method |
| CN111191880A (en) * | 2019-12-13 | 2020-05-22 | 华能澜沧江水电股份有限公司 | Slope full life cycle safety management method based on digital mapping |
| CN111506943A (en) * | 2020-03-23 | 2020-08-07 | 中建五局第三建设有限公司 | Method for guiding reinforcing construction of fractured rock mass by three-dimensional geological model |
| CN111507015A (en) * | 2020-04-28 | 2020-08-07 | 贵州省质安交通工程监控检测中心有限责任公司 | In-service slope technical condition evaluation method |
| CN111967081A (en) * | 2020-08-20 | 2020-11-20 | 广西路桥工程集团有限公司 | Bridge construction management system based on BIM |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113832978A (en) * | 2021-10-09 | 2021-12-24 | 中交三航局第三工程有限公司 | Tuff slope anti-weathering excavation method |
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Application publication date: 20210416 |