CN117649150A - Quality monitoring method for earth-rock dam filler - Google Patents
Quality monitoring method for earth-rock dam filler Download PDFInfo
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- CN117649150A CN117649150A CN202311711387.7A CN202311711387A CN117649150A CN 117649150 A CN117649150 A CN 117649150A CN 202311711387 A CN202311711387 A CN 202311711387A CN 117649150 A CN117649150 A CN 117649150A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000011435 rock Substances 0.000 title claims abstract description 19
- 238000012544 monitoring process Methods 0.000 title claims abstract description 18
- 239000000945 filler Substances 0.000 title claims abstract description 16
- 238000010276 construction Methods 0.000 claims abstract description 57
- 238000005096 rolling process Methods 0.000 claims abstract description 54
- 238000005056 compaction Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims description 8
- 239000004575 stone Substances 0.000 description 7
- 239000002689 soil Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000012797 qualification Methods 0.000 description 3
- 238000003908 quality control method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000009490 roller compaction Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a quality monitoring method of earth-rock dam filler, which belongs to the field of earth-rock dam construction and comprises the following steps: setting construction parameters; the GPS positioning module and the camera are used for realizing information acquisition of the whole material in the whole process of the whole period, and rolling data in each construction period and each construction process are obtained; comprehensively analyzing the collected rolling data in a control system; and correcting the operation during construction according to the construction report automatically generated by the system. The quality monitoring method for the earth-rock dam filler can effectively conduct real-time effective quality monitoring on the compaction degree, compaction uniformity and compaction stability of the earth-rock dam filler.
Description
Technical Field
The invention relates to the technical field of earth-rock dam construction, in particular to a quality monitoring method for earth-rock dam filler.
Background
The road, railway and earth-rock dam are required to strictly conform to the specifications in the construction process, and whether the grading of the filler is qualified directly influences the performance of the material or not, and the compaction effect of the road, railway and earth-rock dam can be directly influenced by the quality of the material performance.
According to incomplete statistics, more than 98% of dam bodies with dam break events worldwide are earth and rockfill dams. The root causes are caused by construction quality reasons, such as: dam material of the dam body does not meet the design requirement, the spreading thickness of the dam material is too thick, the times in rolling construction are insufficient, the vibration frequency does not meet the requirement, and the like.
At present, in the actual filling and rolling process of the rock-fill dam, the quality control is carried out by selecting points according to the conventional detection of dry density, water content, compaction degree and other modes, the compaction condition of the earth-fill dam is reflected in a point-strip-surface mode in most of the modes, and the problems of overpressure and undervoltage in the rolling process are solved, so that even if the compaction quality defect is found, the reworking range and the number of re-rolling passes cannot be accurately guided.
Disclosure of Invention
The invention aims to provide a quality monitoring method for earth-rock dam filler, which can effectively conduct real-time effective quality monitoring on compaction degree, compaction uniformity and compaction stability of the earth-rock dam filler.
In order to achieve the above purpose, the invention provides a quality monitoring method of earth-rock dam filler, comprising the following steps:
s1, setting construction parameters;
s2, using a GPS positioning module and a camera to realize information acquisition of the whole material in the whole process of the whole period, and obtaining rolling data in each period and each process of construction;
s3, comprehensively analyzing the collected rolling data in a control system;
s4, correcting the operation during construction according to the construction report automatically generated by the system.
Preferably, the construction parameters in the step S1 include a rolling pass number and a rolling speed.
Preferably, the rolling data in the step S2 includes rolling pass number, speed overrun number, rolling device speed average value, rolling device speed final value, rolling device exciting force overrun number, exciting force average value, exciting force final value, rolling settlement amount and driving track.
Preferably, the control system in step S3 reenacts the dam construction implementation process through the rolling data, and divides the construction area into unit projects for quality detection.
Preferably, after the construction of any unit engineering is completed, the control system automatically generates a construction report of the construction unit, including report information, automatically or manually set positions of detection points and related figures of construction states, and performs entry inspection and adjustment on construction quality according to the construction report.
Therefore, the quality monitoring method of the earth-rock dam filler can effectively conduct real-time effective quality monitoring on the compaction degree, compaction uniformity and compaction stability of the earth-rock dam filler, saves labor cost and has good economic benefit.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a flow diagram of an embodiment of the present invention.
Detailed Description
Examples
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the invention discloses a quality monitoring method of earth-rock dam filler, which comprises the following steps:
s1, setting construction parameters;
s2, using a GPS positioning module and a camera to realize information acquisition of the whole material in the whole process of the whole period, and obtaining rolling data in each period and each process of construction;
s3, comprehensively analyzing the collected rolling data in a control system;
s4, correcting the operation during construction according to the construction report automatically generated by the system.
The construction parameters in step S1 include the number of rolling passes and the rolling speed. The rolling data in the step S2 comprises rolling pass number, speed overrun times, rolling equipment speed average value, rolling equipment speed final value, rolling equipment exciting force overrun times, exciting force average value, exciting force final value, rolling settlement amount and driving track. By adopting advanced high-precision positioning technologies such as Beidou and GPS and continuous compaction control technologies, a real-time monitoring system for the rolling quality of the dam is established, and online real-time monitoring is carried out on the rolling pass number, the rolling speed, the rolling track, the rolling settlement, the exciting force, the lap joint width, the dam paving thickness and the like of the rolling machine of the dam.
The control system in the step S3 reenacts the dam construction implementation process through rolling data, and divides a construction area into unit projects for quality detection. The quality inspection of unit engineering is convenient, and the construction quality control of the dam is ensured.
After the construction of any unit engineering is completed, the control system can automatically generate a construction report of the construction unit, wherein the construction report comprises report information, automatically or manually set detection point positions and related construction state graphs, and the construction report is used for checking and adjusting construction quality.
The specific requirements of some parameters in construction in the invention are as follows:
for vibratory roller compaction, the maximum allowable grain size of the stone is desirably slightly less than the thickness of the compacted layer; the thickness of the air tire is 1/2-1/3 of the thickness of the air tire grinding, the ultra-diameter stone should be disassembled in the stock ground, a small amount of large stone or drift stone transported to the dam face should be treated before grinding. It is usually buried under the level by digging pit with a backhoe on site or moved to the vicinity of the outer slope of the dam by a bulldozer to serve as slope protection stone. A small amount of ultra-diameter stone can be removed by an impact hammer at the dam face.
The lap joint width of the sectional rolling track is not less than 0.3-0.5 m in the vertical rolling direction, and the rolling speed is 1.0-1.5 m along the rolling direction. Generally, 2-3 km/h is taken, and the speed of the process is not more than 4km/h.
When the water content of the soil is more than 1% of the upper limit of the construction control water content, a disc or a plow can be used for carrying out scarification and airing on the filling surface before rolling. In the days of drying and high temperature, spraying and water adding maintenance should be performed to prevent the surface of the filled soil from being dehydrated and dried.
And (3) dam compaction quality control indexes:
1) For the impermeable soil material, the qualification rate of the dry density or the compaction degree is not less than 90 percent, and the unqualified dry density or the compaction degree is not less than 98 percent of the designed dry density or the compaction degree.
For the gravelly soil, weathered materials and cohesive soil materials with uneven properties, the compactness is used as a control index, and a three-point rapid compaction test method is used as a detection means on site.
2) For the dry density of the rock-fill material and gravel material, the average value should be not less than the design value, and the standard deviation should be not more than 0.1g/cm 3 . When the number of samples is less than 20, the qualification rate is not less than 90%, and the disqualified dry density is not less than 95% of the design dry density.
3) Filling of the filter material and the transition material, except checking compaction quality according to the regulations, the grain composition must be strictly controlled, and reworking should be carried out without meeting the design requirements.
4) Filling of the piled stones of the dam shell is mainly performed by controlling compaction parameters, and dry density and grading are measured according to specified sampling and are used as records.
Therefore, the intelligent monitoring, early warning and managing system for the subway shaft construction safety is adopted, parameters such as rolling speed, number of passes, track lap joint width and the like are accurately controlled by the intelligent compaction system for the dam, the primary rolling qualification rate is improved, rolling operation time is shortened, missing rolling repair operation is effectively avoided, construction efficiency is improved, and construction cost is saved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting it, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.
Claims (5)
1. The quality monitoring method of the earth-rock dam filler is characterized by comprising the following steps of:
s1, setting construction parameters;
s2, using a GPS positioning module and a camera to realize information acquisition of the whole material in the whole process of the whole period, and obtaining rolling data in each period and each process of construction;
s3, comprehensively analyzing the collected rolling data in a control system;
s4, correcting the operation during construction according to the construction report automatically generated by the system.
2. The method for monitoring the quality of earth-rock dam filler according to claim 1, wherein the method comprises the following steps: the construction parameters in the step S1 include the number of rolling passes and the rolling speed.
3. The method for monitoring the quality of earth-rock dam filler according to claim 1, wherein the method comprises the following steps: the rolling data in the step S2 includes a rolling pass number, a speed overrun number, a rolling equipment speed average value, a rolling equipment speed final value, a rolling equipment exciting force overrun number, an exciting force average value, an exciting force final value, a rolling settlement amount and a driving track.
4. The intelligent compaction method for filling a dam according to claim 1, wherein: and (3) the control system in the step (S3) reenacts the dam construction implementation process through the rolling data, and divides a construction area into unit projects to perform quality detection.
5. The intelligent compaction method for filling a dam according to claim 4, wherein: after the construction of any unit engineering is completed, the control system can automatically generate a construction report of the construction unit, wherein the construction report comprises report information, automatically or manually set detection point positions and related construction state graphs, and the construction report is used for checking and adjusting construction quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311711387.7A CN117649150A (en) | 2023-12-13 | 2023-12-13 | Quality monitoring method for earth-rock dam filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311711387.7A CN117649150A (en) | 2023-12-13 | 2023-12-13 | Quality monitoring method for earth-rock dam filler |
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| Publication Number | Publication Date |
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| CN117649150A true CN117649150A (en) | 2024-03-05 |
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| CN202311711387.7A Pending CN117649150A (en) | 2023-12-13 | 2023-12-13 | Quality monitoring method for earth-rock dam filler |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101582198A (en) * | 2009-06-12 | 2009-11-18 | 天津大学 | Real-time monitoring method for construction quality of core rockfill dam |
| CN208722044U (en) * | 2018-09-10 | 2019-04-09 | 武汉大学 | A kind of earth and rockfill dam based on NTRIP rolls Real-time quality monitoring system |
-
2023
- 2023-12-13 CN CN202311711387.7A patent/CN117649150A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101582198A (en) * | 2009-06-12 | 2009-11-18 | 天津大学 | Real-time monitoring method for construction quality of core rockfill dam |
| CN208722044U (en) * | 2018-09-10 | 2019-04-09 | 武汉大学 | A kind of earth and rockfill dam based on NTRIP rolls Real-time quality monitoring system |
Non-Patent Citations (4)
| Title |
|---|
| 刘东海;李子龙;王爱国;: "堆石料压实质量实时监测指标与碾压参数的相关性分析", 天津大学学报, no. 04, 15 April 2013 (2013-04-15) * |
| 刘东海;王光烽;: "实时监控下土石坝碾压质量全仓面评估", 水利学报, no. 06, 15 June 2010 (2010-06-15) * |
| 刘慧芳;戚明祖;涂寒;: "浅析老挝南俄3水电站大坝填筑过程中的数字化控制", 四川水力发电, no. 1, 15 March 2019 (2019-03-15) * |
| 胡赛潇;张云发;刘超;隆文非;: "基于坝坡稳定复核的土石坝整体填筑质量评价", 人民黄河, no. 05, 10 May 2018 (2018-05-10) * |
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