CN110162866A - A kind of mud-rock flow channel deposit depth calculation method based on borehole data - Google Patents
A kind of mud-rock flow channel deposit depth calculation method based on borehole data Download PDFInfo
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Abstract
The mud-rock flow channel deposit depth calculation method based on borehole data that the invention discloses a kind of, the following steps are included: S1: passing through areal geology, earthquake, the analysis of drilling data, the basin for screening geological conditions is used as practical geological model, and the influence factor of mud-rock flow channel deposit depth is controlled in the practical geological model of quantization signifying；S2: the sample data based on statistics establishes the quantitative relationship that mud-rock flow channel deposit depth and mud-rock flow channel width, channel longitudinal slope drop, analyzes its correlation；S3: screening abnormal point before the computation model of foundation, screens out drilling well positional shift mud-rock flow channel, is located at the special samples such as exit or entrance of a clitch accumulation area, channel width mutation, the screening of complete paired-sample；This method solves the problems, such as that previous methods can not improve the initiative of the control precision and reply disaster to Geological Hazards of debris.
Description
Technical field
The present invention relates to hazards control engineering field, especially a kind of mud-rock flow channel siltation based on borehole data
Depth computing method.
Background technique
After " 512 " Wenchuan earthquake, induce avalanche, landslide, Geological Hazards of debris critical raininess substantially reduce, make
More frequent at avalanche, Landslide Hazards activity, a large amount of material resources of accumulation, exacerbate the work of mud-rock flow in catchment basin of debris flow channel
It is dynamic.Mud-rock flow major developmental is made of on hill slope or in cheuch a large amount of silt, stone and water, is a kind of complicated
Two-phase solid-liquid fluid.The interaction of solid and fluid can not only be such that the flowing of substance is physically distinguished, but also assign
Their unique destructive power are given.Mud-rock flow is one of most dangerous and least predictable phenomenon in the surficial process of mountain area, according to system
771, China county (city) is counted by the disaster historical events of mud-stone flow disaster, show that each county will be broken out in 1 year average
18 mud-stone flow disaster events cause more than 3700 people dead by mud-stone flow disaster event every year on average.And mud-rock flow siltation is to make
As long as the specific calculating for mud-rock flow channel deposit depth can be mud at one of mass casualties and the factor of property loss
Rock glacier circulation and the planning of accumulation area and prevention and treatment provide reference.
When studying mud-stone flow disaster process, erosion and deposition during need to understanding due to mud-rock flow, channel become silted up
Product depth is the dynamic relationship and feedback between mud-rock flow volume and river topography variation.However mud-rock flow channel is invaded at present
The research of erosion focuses primarily upon the research of erosion amount and its influence factor, however relatively fewer for channel erosion and deposition case study,
Specific algorithm is not provided to the calculating of mud-rock flow channel deposit depth, that is, lacks computation model.And this vacancy also causes
It is not thorough enough to the understanding of the rule and influence factor of mud-rock flow channel deposit depth, it can not further probe into mud-rock flow channel
Deposition evolution process, reduces the initiative of reply mud-stone flow disaster, and mud-rock flow also need to be often understood when actual engineering design
Channel deposit depth determines index, but provides this quantitative data without computation model.
Such as Publication No.Publication date isThe Chinese patent literature of day
A kind of mud-rock flow yield stress and maximum deposition thickness calculation method are disclosed, using above patent document as the existing skill of representative
Art, the prior art all only propose the influence factor of deposit depth or the meter of maximum deposit depth to Geological Hazards of debris mostly
It calculates, does not provide specific algorithm to the calculating of mud-rock flow channel deposit depth, that is, lack computation model.And this vacancy also causes
Make not thorough enough to the changing rule of mud-rock flow channel deposit depth and the understanding of influence factor, can not further go to probe into mudstone
The deposition evolution process for flowing channel reduces the initiative of the control precision and reply disaster to Geological Hazards of debris.
Summary of the invention
To solve problems of the prior art, the present invention provides a kind of, and the mud-rock flow channel based on borehole data becomes silted up
Product depth computing method solves the master of control precision and reply disaster that previous methods can not be improved to Geological Hazards of debris
The problem of dynamic property.
The technical solution adopted by the present invention is that a kind of mud-rock flow channel deposit depth calculation method based on borehole data,
The following steps are included:
S1: by areal geology, earthquake, the analysis of drilling data, the basin for screening geological conditions class is used as practical geology
Model controls the influence factor of mud-rock flow channel deposit depth in the practical geological model of quantization signifying；
S2: the sample data based on statistics establishes mud-rock flow channel deposit depth and mud-rock flow channel width, channel longitudinal slope
The quantitative relationship of drop analyzes its correlation；
S3: screening abnormal point before the computation model of foundation, screens out drilling well positional shift mud-rock flow channel, is located at exit or entrance of a clitch heap
The special samples such as product area, channel width mutation, the screening of complete paired-sample；
S4: it according to sample data, is established using the calculation method of nonlinear regression based on drilling with origin software
The quantitative calculation of the mud-rock flow channel deposit depth of data；
S5: S is dropped by the mud-rock flow channel longitudinal slope that factual survey obtains target basin, channel width b passes through debris flow gully
Road deposit depth calculation formula determines mud-rock flow channel deposit depth H, mud-rock flow channel deposit depth calculation formula are as follows:
H=463.17-142lnS-0.75b+11.03 (lnS)2-0.00117b2+0.172b×lnS
In formula, S is the weighted average of mud-rock flow channel longitudinal slope drop；B is channel width；H is the siltation of mud-rock flow channel
Depth.
Preferably, the basin of geological conditions is that formation lithology is close, mud-rock flow weight in the Minjiang River Basin of Wenchuan meizoseismal area in S1
Degree is in 1.7-2.2t/m3Catchment basin of debris flow.
Preferably, the influence factor that mud-rock flow channel deposit depth is controlled in S1 is mud-rock flow channel width, channel longitudinal slope
Drop, channel bank slope gradient related data.
Preferably, it is by the mud-rock flow channel deposit depth H of mud-rock flow channel deposit depth calculation formula calculating in S5
Channel deposit depth after referring to multiple debris flow.
Preferably, the weighted average that the mud-rock flow channel longitudinal slope drop S of mud-rock flow drops in S5 for channel longitudinal slope at target calculating
Value.
The present invention is based on having the beneficial effect that for the mud-rock flow channel deposit depth calculation method of borehole data:
1. the present invention breaks through Conventional wisdom planning siltation range and calculates the limitation of mud-rock flow maximum deposit depth, from drilling
Three aspects such as data, channel longitudinal slope drop and channel width are started with, and it is deep to construct the mud-rock flow channel siltation based on borehole data
The computation model of degree.
2. in S2 of the present invention, mud-rock flow channel deposit depth is obtained by borehole data, there is data acquisition simplicity, judgement
The intuitive feature of standard.
3. mud-rock flow channel longitudinal slope drop of the present invention and channel width can be obtained by in-site measurement or remote sensing image, there is ginseng
Number obtains easy, calculating process simplicity effect.
4. in S4 of the present invention, establish that calculate the siltation of mud-rock flow channel deep by origin this drawing, Data Analysis Software
The model of degree, related coefficient have reached 0.732, and it is stronger to calculate conclusion objectivity by procedure treatment for entire calculating process.
5. in S5 of the present invention, mud-rock flow channel deposit depth is calculated by formula one, not only calculates with clearly defined objective, but also it is counted
It calculates result and obtains quite simplicity.
6. " S1-S5 " step of the invention forms a complete mathematical models, it is deep the siltation of mud-rock flow channel has been avoided
When spending field survey the problem of complex environment, for the vacancy of the clear algorithm of mud-rock flow channel deposit depth, a kind of base is provided
In the mud-rock flow channel deposit depth computation model of borehole data, the specific calculating side of mud-rock flow channel deposit depth is specified
Method can not only provide thinking and basic data for geological disaster process study, additionally it is possible to provide for prevention and treatment mitigation engineering design
Strong guidance greatly improves the judgement precision of geological disaster and the initiative of reply disaster.
7. the mud-rock flow channel deposit depth that the present invention is suitable for Wenchuan macroseism region calculates, there is flow chart of data processing letter
Clean, the characteristics of calculating process is easy, calculated result is intuitive, parameter index is easily grasped.Calculated result is to debris flow erosion siltation etc.
Function Characteristics have reliable predictive value, while also establishing for debris flow scale, risk range and deposition fan hazard assessment
Theoretical basis.
Detailed description of the invention
Fig. 1 is that the present invention is based on the overall algorithm flow charts of the mud-rock flow channel deposit depth calculation method of borehole data.
Fig. 2 is that the present invention is based on the channel longitudinal slope of the mud-rock flow channel deposit depth calculation method of borehole data drops, channel
The correlativity figure that width and mud-rock flow channel deposit depth are presented.
Fig. 3 is that the present invention is based on high families in the specific embodiment of the mud-rock flow channel deposit depth calculation method of borehole data
Ditch channel deposit depth model calculation value and actual comparison schematic diagram.
Specific embodiment
The embodiment of the present invention is described in detail with reference to the accompanying drawing.
A specific embodiment of the invention is described below, in order to facilitate understanding by those skilled in the art this hair
It is bright, it should be apparent that the present invention is not limited to the ranges of specific embodiment, for those skilled in the art,
As long as various change is in the spirit and scope of the present invention that the attached claims limit and determine, these variations are aobvious and easy
See, all are using the innovation and creation of present inventive concept in the column of protection.
As shown in Figure 1 to Figure 2, a kind of mud-rock flow channel deposit depth calculation method based on borehole data, including it is following
Step:
S1: by areal geology, earthquake, the analysis of drilling data, the basin for screening geological conditions is used as practical Geological Model
Type controls the influence factor of mud-rock flow channel deposit depth in the practical geological model of quantization signifying；
S2: the sample data based on statistics establishes mud-rock flow channel deposit depth and mud-rock flow channel width, channel longitudinal slope
The quantitative relationship of drop analyzes its correlation；
S3: screening abnormal point before the computation model of foundation, screens out drilling well positional shift mud-rock flow channel, is located at exit or entrance of a clitch heap
The special samples such as product area, channel width mutation, the screening of complete paired-sample；
S4: it according to sample data, is established using the calculation method of nonlinear regression based on drilling with origin software
The quantitative calculation of the mud-rock flow channel deposit depth of data；
S5: S is dropped by the mud-rock flow channel longitudinal slope that factual survey obtains target basin, channel width b passes through debris flow gully
Road deposit depth calculation formula determines mud-rock flow channel deposit depth H, mud-rock flow channel deposit depth calculation formula are as follows:
H=463.17-142lnS-0.75b+11.03 (lnS)2-0.00117b2+0.172b×lnS
In formula, S is the weighted average of mud-rock flow channel longitudinal slope drop；B is channel width；H is the siltation of mud-rock flow channel
Depth.
The basin of geological conditions is that formation lithology is close, mudstone in the Minjiang River Basin of Wenchuan meizoseismal area in the S1 of the present embodiment
Severe is flowed in 1.7-2.2t/m3Catchment basin of debris flow.
The influence factor that mud-rock flow channel deposit depth is controlled in the S1 of the present embodiment is mud-rock flow channel width, channel
Longitudinal slope drop, channel bank slope gradient related data.
It is deposited deeply in the S5 of the present embodiment by the mud-rock flow channel that mud-rock flow channel deposit depth calculation formula calculates
Spend H, the channel deposit depth after referring to multiple debris flow.
The mud-rock flow channel longitudinal slope drop S of mud-rock flow is the weighting of channel longitudinal slope drop at target calculating in the S5 of the present embodiment
Average value.
The present embodiment forms a complete mathematical models using " S1-S5 " step when implementing, and avoids
When mud-rock flow channel deposit depth field survey the problem of complex environment, for the sky of the clear algorithm of mud-rock flow channel deposit depth
It lacks, clearly provides the circular of mud-rock flow channel deposit depth, can not only be provided for geological disaster process study
Thinking and basic data, additionally it is possible to provide strong guidance for prevention and treatment mitigation engineering design, greatly improve geological disaster
The initiative of judgement precision and reply disaster.
The mud-rock flow channel deposit depth computation model based on borehole data in the present invention, passes through certain amount sample number
According to statistics, analyze deposit depth and channel longitudinal slope drop, quantitative correlativity between channel width on the basis of, will be non-thread
Property return this mathematical method and be introduced into mud-rock flow channel deposit depth computation model, obtained the side for clearly calculating deposit depth
Method, the model are primarily adapted for use in the calculating of Wenchuan meizoseismal area mud-rock flow channel deposit depth, become silted up for other region mud-rock flow channels
Product depth calculation also has certain reference.Calculating mud-rock flow channel deposit depth using the model is further to probe into siltation
Development law opens new approaches, also provides strong directive function for prevention and treatment mitigation engineering.
Table 1 is the sample data and error amount that computation model is established in S4
Embodiment 1
It is analyzed using high family ditch of the present invention to Wenchuan meizoseismal area, calculates the siltation at mud-rock flow channel different location
Depth:
Wenchuan County is located at the Sichuan Basin Aba autonomous prefecture southeast, longitude and latitude be respectively 30 ° 45 ' -31 ° 43 ' of north latitude,
102 ° 51 ' -103 ° 44 ' of east longitude, about 4084 sq-km of the gross area.Longmenshan, the development of Qionglai mountain range, northwest Gao Dong in region
South is low, and obliquely, relief, height difference is larger, belongs to typical high mountain gorge landform, has Ming River mainstream, Ming River in region
Develop luxuriant river in Shangdong Province tomography, Beichuan in the basins such as tributary Zagunao River, the sub- small stream of fishing --- reflect elegant tomography.
By factual survey obtain high family's Watershed mud-rock flow channel longitudinal slope drop S, unit ‰, channel width b, unit m,
Mud-rock flow channel deposit depth H, unit m are determined by following formula,
H=463.17-142.5lnS-0.75b+11.03 (lnS)2-0.00117b2+0.172b×lnS
In formula, S is the weighted average of mud-rock flow channel longitudinal slope drop, unit ‰；B is channel width, unit m；H is mudstone
Flow the deposit depth of channel, unit m.
Table 2 is high family's ditch channel deposit depth model calculation value and actual comparison table
Comparing result is shown: theoretical model calculated result is closer to the practical deposit depth value that drills, and ZK3, ZK7 are twice
Calculated result deviation is larger, and the relative error of remaining calculating gained deposit depth is only between -2.53~0.21m.By reconnoitring
Bank slope has been biased in the position of ZK3, ZK7 drilling known to data, and the accumulation depth of bank slope and channel siltation value have apparent difference,
So the calculated result deviation of ZK3, ZK7 two drillings is larger, can also it be found from Fig. 3, model calculation value and practical siltation value have
There is similar variation tendency.
In conclusion the computation model of this research and establishment can relatively accurately calculate mud-rock flow channel siltation value, calculate
Real result is reliable, can be used for the calculating of mud-rock flow solid matter total amount, is that debris flow scale, risk range and deposition fan are dangerous
Property evaluation based theoretical, additionally it is possible to for prevent and treat mitigation engineering design strong guidance is provided.
Embodiment 2
It is analyzed, is calculated at mud-rock flow channel different location using panda ditch (Wolong) of the present invention to Wenchuan meizoseismal area
Deposit depth:
Wenchuan County is located at In Northwest of Sichuan Basin, occupies the Aba Tibetan Autonomous Prefecture southeast, south is away from provincial capital Chengdu 146km, north
To state mansion Maerkang 246km.The county domain wide 84km of thing, 105km long from south to north, gross area 4084km2.Boundary is in 30 ° 45 ' 37 of north latitude "
~31 ° 43 ' 10 ", between 102 ° 51 ' 46 of east longitude "~103 ° 44 ' 37 ".Wolong special administrative region is located at Wenchuan County southwest corner,
West connects Baoxing County, and north has a common boundary with Li County, and south is connected with Lushan, Dayi, the northeast township Jie Caopo, eastern and reflect elegant handover, and the southeast connects three
Jiang Xiang.The traffic convenience now of Wolong town, 303 line of provincial highway run through the whole district along Ba Langhe, away from Chengdu only 120km.
By factual survey obtain panda ditch (Wolong) basin mud-rock flow channel longitudinal slope drop S, unit ‰, channel width b,
Unit m determines mud-rock flow channel deposit depth H, unit m by following formula,
H=463.17-142lnS-0.75b+11.03 (lnS)2-0.00117b2+0.172b×lnS
In formula, S is the weighted average of mud-rock flow channel longitudinal slope drop, unit ‰；B is channel width, unit m；H is mudstone
Flow the deposit depth of channel, unit m.
Table 3 is panda ditch channel deposit depth model calculation value and actual comparison table
Comparing result is shown: theoretical model calculated result is closer to the practical deposit depth value that drills, due to ZK1-ZK3
The position of three drillings is located at exit or entrance of a clitch accumulation area, can not obtain valid data, not calculate, remaining calculates gained deposit depth
For relative error only between -0.87m~1.66m, error is smaller.
Show: the present invention by calculate channel deposit depth index stop in can convenient acquisition correlative factor, channel longitudinal slope
Drop and channel width, specify the circular of mud-rock flow channel deposit depth, calculating data intuitive with calculated result
The characteristics of easily grasping can effectively improve the control precision of geological disaster and the initiative of reply disaster.
Claims (5)
1. a kind of mud-rock flow channel deposit depth calculation method based on borehole data, which comprises the following steps:
S1: by areal geology, earthquake, drilling well analysis, screen geological conditions basin be used as practical geological model, measure
Change the influence factor for characterizing and controlling mud-rock flow channel deposit depth in practical geological model；
S2: the sample data based on statistics establishes mud-rock flow channel deposit depth and mud-rock flow channel width, channel longitudinal slope drops
Quantitative relationship analyzes its correlation；
S3: screening abnormal point before the computation model of foundation, screens out drilling well positional shift mud-rock flow channel, is located at the exit or entrance of a clitch and accumulates
Area, channel width sudden change sample, the screening of complete paired-sample；
S4: it according to sample data, establishes using the calculation method of nonlinear regression with origin software and is based on borehole data
Mud-rock flow channel deposit depth quantitative calculation；
S5: S is dropped by the mud-rock flow channel longitudinal slope that factual survey obtains target basin, channel width b is become silted up by mud-rock flow channel
Product depth calculation formula determines mud-rock flow channel deposit depth H, the mud-rock flow channel deposit depth calculation formula are as follows:
H=463.17-142lnS-0.75b+11.03 (lnS)2-0.00117b2+0.172b×lnS
In formula, S is the weighted average of mud-rock flow channel longitudinal slope drop；B is channel width；H is the deposit depth of mud-rock flow channel.
2. the mud-rock flow channel deposit depth calculation method according to claim 1 based on borehole data, which is characterized in that
The basin of geological conditions is that formation lithology is close, mud-rock flow severe is 1.7-in the Minjiang River Basin of Wenchuan meizoseismal area in the S1
2.2t/m3Catchment basin of debris flow.
3. the mud-rock flow channel deposit depth calculation method according to claim 1 based on borehole data, which is characterized in that
The influence factor that mud-rock flow channel deposit depth is controlled in the S1 is mud-rock flow channel width, channel longitudinal slope drop, channel bank slope
Gradient related data.
4. the mud-rock flow channel deposit depth calculation method according to claim 1 based on borehole data, which is characterized in that
The mud-rock flow channel deposit depth H calculated in the S5 by mud-rock flow channel deposit depth calculation formula, refers to multiple mudstone
Channel deposit depth after stream activity.
5. the mud-rock flow channel deposit depth calculation method according to claim 1 based on borehole data, which is characterized in that
The mud-rock flow channel longitudinal slope drop S of mud-rock flow is the weighted average of channel longitudinal slope drop at target calculating in the S5.
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| CN111639444A (en) * | 2020-06-19 | 2020-09-08 | 中国科学院、水利部成都山地灾害与环境研究所 | Method for measuring and calculating sand blocking rate of debris flow blocking dam and application |
| CN112613750A (en) * | 2020-12-25 | 2021-04-06 | 中建三局绿色产业投资有限公司 | Sedimentation risk assessment method for deep sewage conveying tunnel |
| CN113282997A (en) * | 2021-06-16 | 2021-08-20 | 中国科学院、水利部成都山地灾害与环境研究所 | Method for measuring and calculating silting longitudinal gradient of debris flow sand dam reservoir and application |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110147394A (en) * | 2019-05-25 | 2019-08-20 | 成都理工大学 | A kind of mud-rock flow a century deposit depth prediction technique based on statistical method |
| CN110147394B (en) * | 2019-05-25 | 2022-06-21 | 成都理工大学 | Statistical method-based method for predicting hundred-year siltation depth of debris flow |
| CN111639444A (en) * | 2020-06-19 | 2020-09-08 | 中国科学院、水利部成都山地灾害与环境研究所 | Method for measuring and calculating sand blocking rate of debris flow blocking dam and application |
| CN111639444B (en) * | 2020-06-19 | 2023-02-28 | 中国科学院、水利部成都山地灾害与环境研究所 | Method for measuring and calculating sand blocking rate of debris flow blocking dam and application |
| CN112613750A (en) * | 2020-12-25 | 2021-04-06 | 中建三局绿色产业投资有限公司 | Sedimentation risk assessment method for deep sewage conveying tunnel |
| CN112613750B (en) * | 2020-12-25 | 2022-08-09 | 中建三局绿色产业投资有限公司 | Sedimentation risk assessment method for deep sewage conveying tunnel |
| CN113282997A (en) * | 2021-06-16 | 2021-08-20 | 中国科学院、水利部成都山地灾害与环境研究所 | Method for measuring and calculating silting longitudinal gradient of debris flow sand dam reservoir and application |
| CN113282997B (en) * | 2021-06-16 | 2022-10-11 | 中国科学院、水利部成都山地灾害与环境研究所 | Method for measuring and calculating silting longitudinal gradient of debris flow sand dam reservoir and application |
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| CN110162866B (en) | 2022-04-22 |
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