CN106841570A - Method for identifying deformation evolution stage of karyoplast landslide of bathyscaph of Chuandong - Google Patents
Method for identifying deformation evolution stage of karyoplast landslide of bathyscaph of Chuandong Download PDFInfo
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Abstract
The method for identifying the deformation evolution stage of the karyophos landslide in the east China Hongji comprises the steps of determining a disaster-pregnant background condition, a main geological disaster problem and controlled factors in an investigation area; determining deformation evolution stages of large and super-large bedding rock landslides in the investigation region and identification mark characteristics of each deformation evolution stage through typical case investigation research in the investigation region; establishing high-precision remote sensing interpretation data and DEM in a survey area; interpreting geological environments such as material composition, geological structures, slope landforms and the like in the investigation region according to the remote sensing interpretation data and the DEM; preliminarily pre-judging hidden danger slopes in the investigation region according to the characteristics of the identification marks and the interpretation result; and rechecking the preliminarily determined hidden danger slope by adopting an engineering geology similarity method through field ground investigation so as to identify, judge and define the hidden danger slope in a deformation stage. The method can effectively define the slope of hidden danger in the red layer area of the east China in the local debugging, and provides guiding basis for the group measurement, group prevention, monitoring, early warning and forecasting of landslide.
Description
Technical field
The present invention relates to geology field, more particularly to a kind of river east red beds rock landslip deformation evolution stage recognition methods.
Background technology
Chuan Dong Based on Red Bed is located at Sichuan Basin northeast edge, is located in Daba Mountain arcuate tectonic belt and river is conquered east row gauffer band
Binding site is stronger by tectonic movement degree.Stratum is based on Jurassic Period, the Cretaceous period in area, and rock stratum is slow to incline or nearly horizontal, ground
Based on mountains low-to-middle in height, low mountain, long-term rainfall is in more than 1000mm in area for looks.It is geology calamity that special geologic setting causes the area
Evil Gao Yifa areas, wherein, large-scale, the super-huge concordant rock landslip for taking place frequently is Main Disaster Problems, the Zhongjiang County of such as 2002
Bridge landslide, Xuanhan County's dryland area of 2004, the green grass or young crops Ningxiang of Daxian county in 2007 landslide, 2010 plum man of Nanjiang County beam
Juvenile grouper landslide, Yao Chang level grounds landslide during landslide and " 9.18 " big flood in 2011, the oxen and horses landslide, thousand Qiu Rim landslides, nine rooms
Rim landslides, the landslide of the big level ground of Yao 1,2,3 etc..Landslide disaster has mass-sending property, sudden and disguised feature in area, causes big model
The dead group's wound of group is enclosed, property safety and the economic development of local resident is seriously constrained.
The EARLY RECOGNITION on landslide is always educational circles's problem, and correlative study has been done for the Study of recognition on landslide by the country, such as
Wu Xiong, what full sea (2001) propose to differentiate " landslide rock mass " using thin sight, microcosmic geological feature combination macrogeological features
New method；Deng Bisheng (2002) proposes the mark such as geomorphological features, boundary of landslide and slide bed, the hydrogeology on identification landslide；
Wang Gongxian (2007) proposes to differentiate that potential landslide can be in terms of crack probe, geological conditions investigation, analogy analysis three
Start with；Zheng Ying people (2007) thinks that ancient landslide has more obvious Landslide Features, identification of being not difficult, it is difficult at present not yet
There is the potential landslide of Landslide Deformation；Kong Zhigang (2007) proposes the definition of potential slope geological hazard, and by potential slope
Five types of geological disaster；The typical case analysis that Yi Jingsong (2015) passes through landslide, with reference to remote sensing aspect and ground investigation
Etc. aspect to river east red beds landslide formation condition and EARLY RECOGNITION studied.
Landslide identification method is mainly divided to two kinds：One kind is qualitatively judged based on macroscopic deformation, and another kind is by cunning
Slope displacement monitoring data carry out rational judgment.First method is subjective, more dogmatic；Second method is more satisfactory, Chang Yin
The extraneous factors such as rainfall, earthquake, Human dried bloodstains cause inapplicable.
On the whole, the EARLY RECOGNITION achievement in research on domestic landslide is few, in particular for the slow concordant of inclining in Chuan Dong Red Beds Areas
The EARLY RECOGNITION of rock landslip is less, and the accuracy of identification is not high, it is difficult to be the mass presdiction and disaster prevention of landslide disaster, monitoring and warning in area
And forecast provides guiding foundation.
The content of the invention
The invention provides a kind of red beds rock landslip deformation evolution stage recognition methods of river east, it passes through slope micro-ly
The identification feature of looks, detail structure etc., proposes the distinguishing mark and method under the different distortion evolutionary phase, so as to be come down in area
FORECAST AND PREVENTION and large-scale, concordant rock landslip hidden danger point judgement provide guidance.
In order to solve the above technical problems, the invention provides a kind of river east red beds rock landslip deformation evolution stage identification side
Method, including：Step 1, determines the pregnant calamity background condition in enumeration district, Geological Hazards problem and controlled factordisease；Step 2, leads to
The typical case investigation crossed in enumeration district, determines the deformation evolution of large-scale, the super-huge concordant rock landslip in enumeration district
Stage and the distinguishing mark feature in each deformation evolution stage；Step 3, the high accuracy remote Sensing Interpretation number set up in enumeration district
According to and DEM；Step 4, material compositions in the enumeration district, geological structure, oblique is interpreted according to the remote Sensing Interpretation data and DEM
The geological environments such as hillside fields looks；Step 5, according to the distinguishing mark feature and the interpretation result of the step 4, preliminary anticipation investigation
Hidden danger slope in area；Step 6, it is hidden to what is primarily determined that in step 5 by field ground investigation using Engineering Geological Analogy Method
Suffer from slope to be checked, be identified with to hidden danger slope, Determination of the deformation stages and delineation.
Preferably, the geological hazards are landslide and crag, the controlled factordisease include having it is slow incline forward it is oblique
Slope structure, have up to structural fracture in more than 400mm heavy showers induced conditions, rock slopes and relief joint with daily rainfall
Phasic development feature, rock slopes microrelief form provide steric requirements for Landslide Deformation development.
Preferably, the deformation evolution stage open stage, initial stage short distance including rock slope primary joint crack water-filling
From kerve start-up period, mid-term trough valley slow expansionary phase and the later stage violent slip phase of trough valley water-filling.
Preferably, the mid-term trough valley slow expansionary phase expanded including crack to be formed drawing fall into the groove stage and trough valley expansion
Form coombe/groove stage.
Preferably, the distinguishing mark feature that the rock slope primary joint crack water-filling opens the stage is mainly shown as to be split
Gap structure face.
Preferably, the distinguishing mark feature of the initial stage short distance kerve start-up period includes：(1) slope development has suitable slope
To tension fissure, crack is mainly shown as deep big crack；(2) slope is anterior or side tool is steep bank free face or zanjon；(3) slope
Range of grade is in 5 ° -25 °, domatic flat or stepped；Wherein, (1) is the knowledge of the initial stage short distance kerve start-up period
The outstanding feature of other flag sign, (2) are the secondary markers of the distinguishing mark feature of the initial stage short distance kerve start-up period,
(3) be the initial stage short distance kerve start-up period distinguishing mark feature general mark.
Preferably, the crack expand to be formed draw fall into the groove stage distinguishing mark feature include：(1) roomy drawing is developed at rear portion
Groove or depression are fallen into, is mainly shown as that roomy drawing falls into groove；(2) more than Inclination body free face development has siltized intercalation；(3) leading edge or two
Side free face development, is steep bank or zanjon；(4) rear wall is cut suddenly or slope deforms the basement rock cliff for leaving in advance；(5) river course is subject to
Slope toe is pushed and narrowed in " convex " type；(6) ramp slope scope is in flat type or ladder in 5 ° -25 °, slope profile morphology
Shape；(7) slope trailing edge has charge for remittance landform, and spring occurs suddenly in leading edge, and spring point is linearly distributed；Wherein, (1) and (2) is described
The outstanding feature to be formed and draw the distinguishing mark feature for falling into the groove stage is expanded in crack, and (3) and (4) are expanded to be formed to draw and fallen into for the crack
The secondary markers of the distinguishing mark feature in groove stage, (5)-(7) are that the distinguishing mark to be formed and draw and fall into the groove stage is expanded in the crack
The general mark of feature.
Preferably, the trough valley is expanded and to form the distinguishing mark feature in coombe/groove stage and include：(1) round-backed armchair shape landforms,
Or left and right sides development coombe, three ditches around or the topography and geomorphology such as double homologous, trailing edge depression of ditch；(2) steep bank or steep is developed at rear portion
Precipice or slope deform the basement rock cliff for leaving, the development of rear portion groove, the common counter-slope tableland of postmedian in advance；(3) Inclination body faces sky
More than face development has siltized intercalation；(4) slope is anterior relatively steep, and gliding mass postmedian is thick, anterior thin；Slope is longitudinally alternate in delaying suddenly,
It is common to have gentle slope platform；(5) ramp slope scope is in flat type in 5 ° -25 °, profile morphology, and leading edge is protruded to river valley, or by depth
Cut, steep bank free face development；(6) coombe development, the low-lying location of trough valley ridge make slope have the landforms of certain " piston ring land is alternate "
Feature；(7) in thick-layer-huge thick-layer sandstone or mud stone common one group of development " X conjugation crack rocks cut into bulk, trailing edge boundary
It is serrated；(8) lamellar block splits rock mass, attitude of stratum and surrounding is inconsistent, crushing rock formation is lax or built on stilts；(9) before slope
There is suddenly spring in edge, and spring point is linearly distributed；Wherein, (1)-(3) are that the trough valley expands the knowledge to form coombe/groove stage
The outstanding feature of other flag sign, (4)-(6) be the trough valley expand the distinguishing mark feature to form coombe/groove stage time
Indicate, (7)-(9) are the general mark that the trough valley expands the distinguishing mark feature to form coombe/groove stage.
Preferably, the distinguishing mark feature of the violent slip phase of later stage trough valley water-filling includes：After landslide play is sliding for many years
Afterwards, ancient slide or Regressive method be will appear as.
The present invention can carry out EARLY RECOGNITION mark based on deformation evolution divided stages theory to river east red beds rock landslip, make
Chuan Dong Red Beds Areas are large-scale, super-huge rock landslip and latency hidden danger slope are more quick, convenient in detailed survey is adjusted on ground, effectively
Drawn a circle to approve, for the mass presdiction and disaster prevention of landslide disaster, monitoring and warning and forecast provide guiding foundation in area.
Brief description of the drawings
Fig. 1 is the flow chart of the river east red beds rock landslip deformation evolution stage recognition methods in the present invention；
Fig. 2 is the river east red beds concordant rock matter hidden danger slope recognition effect figure in the present invention；
Fig. 3 is the deformation evolution ideograph that rock slope primary joint crack water-filling in the present invention opens the stage；
Fig. 4 is the deformation evolution ideograph of the initial stage short distance kerve start-up period in the present invention；
Fig. 5 is that the deformation evolution ideograph to be formed and draw and fall into the groove stage is expanded in the crack in the present invention；
Fig. 6 is that the trough valley in the present invention expands the deformation evolution ideograph to form coombe/groove stage；
Fig. 7 is the deformation evolution ideograph of the later stage violent slip phase of trough valley water-filling in the present invention.
Specific embodiment
It is contemplated that based on geologic survey, describing a kind of river east red beds rock landslip deformation evolution divided stages
Theory, and by the identification feature of slope microrelief, detail structure etc., propose distinguishing mark under the different distortion evolutionary phase and
Method, for the FORECAST AND PREVENTION and large-scale, concordant rock landslip hidden danger point judgement that are come down in area provide guidance.
General thought of the invention be based on the geologic survey of Chuan Dong Red Beds Areas, investigate further geological structure in area,
The pregnant calamity background conditions such as layer lithology, topography and geomorphology, emphasize that skew prired is the local deformation evolutionary process of geologic body in area,
In the analysis area on the basis of the deformation behaviour of large-scale, super-huge concordant rock landslip, origin mechanism and deformation evolutionary process, carry
Go out the deformation evolution divided stages theory of large-scale in area, super-huge concordant rock landslip and the morning under the different distortion evolutionary phase
Phase distinguishing mark, and then hidden danger identification and delineation are carried out to the slope in area using Engineering Geological Analogy Method, it is geology calamity in area
Harmful mass presdiction and disaster prevention and early-warning and predicting provide foundation.
Fig. 1 to Fig. 7 is refer to, the river east red beds rock landslip deformation evolution stage recognition methods in the present invention includes following
Step：
Step 1, determines the pregnant calamity background condition in enumeration district, Geological Hazards problem and controlled factordisease.
For example, by data collection and investigation, Chuan Dong Red Beds Areas geomorphic type is mainly tectonic denudation mountains low-to-middle in height landform, it is single
Face the mountain, like cuesta, table mount landform shape, 300-700m of depth of cut, general 20 ° or so of terrain slope is in groove cheuch more
Type；Formation lithology is Cretaceous System, Jurassic sandstones and mud stone alternating layers, and 0-30 ° of the attitude of rocks is main Facility-sliding strata in area.Ground
Texture makes relatively simple, shows as fold of releiving, and rock mass is layer structure, and mudstone foundation belongs to Facility-sliding strata.
Chuan Dong Red Beds Areas are main based on landslide and crag (avalanche) disaster, based on small-sized landslide o earth slope, but main geologic
Disaster problem is that large-scale, the super-huge slow concordant rock landslip that inclines easily is developed under the conditions of strong rainstorms, causes the dead group's wound harm of group.Greatly
Type, the super-huge slow main controlled factordisease of concordant rock landslip that inclines are：1. there is the slow ramp structure for inclining forward；2. there is daily rain amount
Amount reaches more than 400mm heavy showers induced conditions；3. structural fracture and relief joint have phasic development feature in rock slopes；
4. rock slopes microrelief form is developed for Landslide Deformation and provides steric requirements.
Step 2, the typical case investigation in area, determines large-scale, the super-huge concordant rock in enumeration district by inquiry
The deformation evolution stage on matter landslide and the distinguishing mark feature in each deformation evolution stage.
For example, the summary by typical case finds, the occurrence and development of concordant rock landslip are intended to experience rock slope
Primary joint crack water-filling is opened, initial stage short distance kerve is started, mid-term trough valley is slowly expanded, later stage trough valley water-filling acutely slides
Four-stage.Wherein, in the mid-term trough valley slow expansionary phase, landslide often shows as two kinds of forms, and one kind is that crack is expanded to be formed
Draw and fall into groove；One kind is that trough valley is expanded to form coombe or groove.
Deformation evolution stage theory in the present invention：In slope the steep bank of common rear wall or trailing edge coombe it is main by
What the slow evolutionary processes such as primary joint crack is opened by water-filling, the expansion of kerve, trough valley were formed.Slope slide, after
Under the phase mankind are transformed and geologic agent is acted on, the topography and geomorphology on slope gradually changes, and forward deformation makes slope stepped
Landforms, transversely deforming make slope have coombe around etc. feature.
Deformation evolution stage theory in the present invention：In very long geological deformation Evolutionary History, at different landslides
In different deformation stages, and each stage last be it is different, because different slopes geological conditions and external condition (rainfall,
Human dried bloodstains etc.) it is different.Some slopes from second stage be developed to fourth stage last it is very short；And some are slided
Slope last it is more long, need to experience crack kerve slowly expand, coombe evolution, step-shaped geomorphologic, the topography and geomorphology such as counter-slope tableland it is slow
Slow evolutionary process, and then the induced landslide under the conditions of the external world.
Step 3, the high accuracy remote Sensing Interpretation data and DEM set up in enumeration district (elevation mathematical model).For example, in control area
The focal investigation region on hidden danger slope, sets up high accuracy (1:1000-1:10000 large scales) remote Sensing Interpretation data and DEM be (high
Number of passes word model), the geological environment such as material composition, geological structure, slope landforms, pays close attention to weak structure in interpretation area
The interpretation in face, slope microrelief and (old) landslide of Gu.
Step 4, material compositions in the enumeration district, geological structure, oblique is interpreted according to the remote Sensing Interpretation data and DEM
The geological environments such as hillside fields looks.
Step 5, it is hidden in preliminary anticipation enumeration district according to the distinguishing mark feature and the interpretation result of the step 4
Suffer from slope.So, by concordant rock landslip deformation evolution divided stages theory in remote sensing technology, and land and its identification mark
Will system achievement carries out pre- charting, can carry out preliminary anticipation to large-scale, super-huge rock slopes in area.
Step 6, is entered by field ground investigation using Engineering Geological Analogy Method to the hidden danger slope primarily determined that in step 5
Row is checked, and is identified with to hidden danger slope, Determination of the deformation stages and delineation.Specifically, to the hidden danger of preliminary anticipation in area
Slope carries out on-site inspection and checks, and carries out landslide identification using the new technologies such as Aerial photography, INSAR, DEM,
By based on ramp unit, being investigated, being evaluated and being contrasted identification one by one, and then efficiently identify large-scale in area, especially big
Type landslide disaster, the concordant rock landslip of latency and hidden danger slope.
By adopting the above-described technical solution, the present invention can be theoretical to river east red beds rock matter based on deformation evolution divided stages
Landslide carries out EARLY RECOGNITION mark, large-scale Chuan Dong Red Beds Areas, super-huge rock landslip and latency hidden danger slope is adjusted detailed on ground
It is more quick in looking into, convenient, effectively drawn a circle to approve, for the mass presdiction and disaster prevention of landslide disaster in area, monitoring and warning and forecast are provided and referred to
The property led foundation.
Preferably, the distinguishing mark feature that the rock slope primary joint crack water-filling opens the stage is mainly shown as to be split
Gap structure face.
Preferably, the distinguishing mark feature of the initial stage short distance kerve start-up period includes：
(1) slope development has inclined slope aspect tension fissure, and crack is mainly shown as deep big crack；
(2) slope is anterior or side tool is steep bank free face or zanjon；
(3) ramp slope scope is in 5 ° -25 °, domatic flat or stepped；
Wherein, (1) is the outstanding feature of the distinguishing mark feature of the initial stage short distance kerve start-up period, and (2) are institute
The secondary markers of the distinguishing mark feature of initial stage short distance kerve start-up period are stated, (3) start for the initial stage short distance kerve
The general mark of the distinguishing mark feature in stage.
Preferably, the crack expand to be formed draw fall into the groove stage distinguishing mark feature include：
(1) development roomy drawing in rear portion falls into groove or depression, is mainly shown as that roomy drawing falls into groove；
(2) more than Inclination body free face development has siltized intercalation；
(3) leading edge or both sides free face are developed, and are steep bank or zanjon；
(4) rear wall is cut suddenly or slope deforms the basement rock cliff for leaving in advance；
(5) river course is subject to toe pushing in slope to narrow in " convex " type；
(6) ramp slope scope is in flat type or stepped in 5 ° -25 °, slope profile morphology；
(7) slope trailing edge has charge for remittance landform, and spring occurs suddenly in leading edge, and spring point is linearly distributed；
Wherein, (1) and (2) is that the outstanding feature to be formed and draw the distinguishing mark feature for falling into the groove stage, (3) are expanded in the crack
(4) it is that the secondary markers to be formed and draw the distinguishing mark feature for falling into the groove stage are expanded in the crack, (5)-(7) are expanded for the crack
Open the general mark for being formed and drawing the distinguishing mark feature for falling into the groove stage.
Preferably, the trough valley is expanded and to form the distinguishing mark feature in coombe/groove stage and include：
(1) round-backed armchair shape landforms or left and right sides development coombe, three ditches around or the landform ground such as double homologous, trailing edge depression of ditch
Looks；
(2) steep bank or cliff are developed in rear portion or slope deforms the basement rock cliff for leaving, the development of rear portion groove, postmedian in advance
Common counter-slope tableland；
(3) more than Inclination body free face development has siltized intercalation；
(4) slope is anterior relatively steep, and gliding mass postmedian is thick, anterior thin；Slope is longitudinally alternate in delaying suddenly, common to have gentle slope to put down
Platform；
(5) ramp slope scope is in flat type in 5 ° -25 °, profile morphology, and leading edge is protruded to river valley, or deep, steep bank
Free face is developed；
(6) coombe development, the low-lying location of trough valley ridge make slope have the geomorphic feature of certain " piston ring land is alternate "；
(7) in thick-layer-huge thick-layer sandstone or mud stone common one group of development " X conjugation crack rocks cut into bulk, rear rim
Boundary is serrated；
(8) lamellar block splits rock mass, attitude of stratum and surrounding is inconsistent, crushing rock formation is lax or built on stilts；
(9) there is suddenly spring in sloped forward edge, and spring point is linearly distributed；
Wherein, (1)-(3) are the outstanding feature that the trough valley expands the distinguishing mark feature to form coombe/groove stage,
(4)-(6) are the secondary markers that the trough valley expands the distinguishing mark feature to form coombe/groove stage, and (7)-(9) are described
Trough valley expands the general mark of the distinguishing mark feature to form coombe/groove stage.
Preferably, the distinguishing mark feature of the violent slip phase of later stage trough valley water-filling includes：After landslide play is sliding for many years
Afterwards, will appear as ancient (old) landslide, slope is transformed or by Human dried bloodstains in the case where long-term geological stress is acted on, be difficult by
Discover.Under extreme operating condition, landslide may further deform destruction, and the various topography and landform characters of ancient (old) landslide presentation are
The important distinguishing mark on delineation hidden danger slope.Patent mainly for landslide acutely slide before, the identification to hidden danger slope, emphatically
Stage distinguishing mark feature before acutely sliding.
In the various embodiments described above, the distinguishing mark under each stage is classified, " outstanding feature " is to show slope
The master control signature of residing deformation stage；" secondary markers " are the secondary feature marks for showing deformation stage residing for slope；" one
As indicate " be the general signature for showing deformation stage residing for slope, with certain universality meaning；Its logical relation
For：" outstanding feature " is Dominated Factors, that is, meet the outstanding feature feature that the slope under certain stage necessarily possessed under the stage,
But possess the slope of the flag sign not necessarily it is determined that being the slope under the stage.Therefore, by the logical relation and
Practical experience, can the following criterion of integrated definition：When slope is to meet the outstanding feature under certain stage, part time is met again
When indicating and typically indicating, can just be judged to the slope under the stage.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, the EARLY RECOGNITION mark theoretical based on river east red beds rock landslip deformation evolution divided stages of the invention and side
Method, realizes the effective identification to latency landslide and hidden danger slope；
2nd, recognition methods is easy, practical, improves discrimination, is mainly used in 1:50000,1:10000 or higher precision
During geological disaster is adjusted in detail, large-scale, super-huge concordant rock landslip and hidden danger slope in delineation area；
3rd, preferable geology basic training and the probe to slope are needed, research cost can be reduced and work effect is improved
Rate.
Claims (9)
1. a kind of river east red beds rock landslip deformation evolution stage recognition methods, it is characterised in that including：
Step 1, determines the pregnant calamity background condition in enumeration district, Geological Hazards problem and controlled factordisease；
Step 2, the by inquiry typical case investigation in area, determines that large-scale, the super-huge concordant rock matter in enumeration district is slided
The deformation evolution stage on slope and the distinguishing mark feature in each deformation evolution stage；
Step 3, the high accuracy remote Sensing Interpretation data and DEM set up in enumeration district；
Step 4, material composition, geological structure, the slope land in the enumeration district are interpreted according to the remote Sensing Interpretation data and DEM
The geological environments such as looks；
Step 5, according to the distinguishing mark feature and the interpretation result of the step 4, the hidden danger in preliminary anticipation enumeration district is oblique
Slope；
Step 6, is answered the hidden danger slope primarily determined that in step 5 using Engineering Geological Analogy Method by field ground investigation
Core, is identified, Determination of the deformation stages and delineation with to hidden danger slope.
2. river east according to claim 1 red beds rock landslip deformation evolution stage recognition methods, it is characterised in that described
Geological hazards are landslide and crag, and the controlled factordisease is included with the slow ramp structure for inclining forward, with daily rainfall
Structural fracture and relief joint have phasic development feature, rock matter up in more than 400mm heavy showers induced conditions, rock slopes
Slope microrelief form provides steric requirements for Landslide Deformation development.
3. river east according to claim 1 red beds rock landslip deformation evolution stage recognition methods, it is characterised in that described
The deformation evolution stage opens stage, initial stage short distance kerve start-up period, mid-term including rock slope primary joint crack water-filling
Trough valley slow expansionary phase and the later stage violent slip phase of trough valley water-filling.
4. river east according to claim 3 red beds rock landslip deformation evolution stage recognition methods, it is characterised in that described
The mid-term trough valley slow expansionary phase is expanded to be formed including crack and draws sunken groove stage and trough valley to expand to form coombe/groove stage.
5. river east according to claim 3 red beds rock landslip deformation evolution stage recognition methods, it is characterised in that described
Rock slope primary joint crack water-filling opens the distinguishing mark feature in stage and is mainly shown as fracture determining.
6. river east according to claim 3 red beds rock landslip deformation evolution stage recognition methods, it is characterised in that described
The distinguishing mark feature of initial stage short distance kerve start-up period includes：
(1) slope development has inclined slope aspect tension fissure, and crack is mainly shown as deep big crack；
(2) slope is anterior or side tool is steep bank free face or zanjon；
(3) ramp slope scope is in 5 ° -25 °, domatic flat or stepped；
Wherein, (1) is the outstanding feature of the distinguishing mark feature of the initial stage short distance kerve start-up period, and (2) are described first
The secondary markers of the distinguishing mark feature of phase short distance kerve start-up period, (3) are the initial stage short distance kerve start-up period
Distinguishing mark feature general mark.
7. river east according to claim 4 red beds rock landslip deformation evolution stage recognition methods, it is characterised in that described
Crack expand to be formed draw fall into the groove stage distinguishing mark feature include：
(1) development roomy drawing in rear portion falls into groove or depression, is mainly shown as that roomy drawing falls into groove；
(2) more than Inclination body free face development has siltized intercalation；
(3) leading edge or both sides free face are developed, and are steep bank or zanjon；
(4) rear wall is cut suddenly or slope deforms the basement rock cliff for leaving in advance；
(5) river course is subject to toe pushing in slope to narrow in " convex " type；
(6) ramp slope scope is in flat type or stepped in 5 ° -25 °, slope profile morphology；
(7) slope trailing edge has charge for remittance landform, and spring occurs suddenly in leading edge, and spring point is linearly distributed；
Wherein, (1) and (2) be the crack expand to be formed draw fall into the groove stage distinguishing mark feature outstanding feature, (3) and
(4) it is that the secondary markers to be formed and draw the distinguishing mark feature for falling into the groove stage are expanded in the crack, (5)-(7) are expanded for the crack
Form the general mark for drawing the distinguishing mark feature for falling into the groove stage.
8. the river east red beds rock landslip deformation evolution stage recognition methods according to Claims 1-4, it is characterised in that
The trough valley is expanded and to form the distinguishing mark feature in coombe/groove stage and include：
(1) round-backed armchair shape landforms or left and right sides development coombe, three ditches around or the topography and geomorphology such as double homologous, trailing edge depression of ditch；
(2) steep bank or cliff are developed in rear portion or slope deforms the basement rock cliff for leaving in advance, and rear portion groove development, postmedian is common
Counter-slope tableland；
(3) more than Inclination body free face development has siltized intercalation；
(4) slope is anterior relatively steep, and gliding mass postmedian is thick, anterior thin；Slope is longitudinally alternate in delaying suddenly, common to have gentle slope platform；
(5) ramp slope scope is in flat type in 5 ° -25 °, profile morphology, and leading edge is protruded to river valley, or deep, and steep bank faces sky
Surface development；
(6) coombe development, the low-lying location of trough valley ridge make slope have the geomorphic feature of certain " piston ring land is alternate "；
(7) in thick-layer-huge thick-layer sandstone or mud stone common one group of development " X conjugation crack rocks cut into bulk, and trailing edge boundary is in
Zigzag；
(8) lamellar block splits rock mass, attitude of stratum and surrounding is inconsistent, crushing rock formation is lax or built on stilts；
(9) there is suddenly spring in sloped forward edge, and spring point is linearly distributed；
Wherein, (1)-(3) are the outstanding feature that the trough valley expands the distinguishing mark feature to form coombe/groove stage, (4)-
(6) it is secondary markers that the trough valley expands the distinguishing mark feature to form coombe/groove stage, (7)-(9) are the trough valley
Expansion forms the general mark of the distinguishing mark feature in coombe/groove stage.
9. river east according to claim 3 red beds rock landslip deformation evolution stage recognition methods, it is characterised in that described
The later stage distinguishing mark feature of the violent slip phase of trough valley water-filling includes：After landslide is acute sliding for many years after, will appear as ancient slide or
Regressive method.
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| CN113326756A (en) * | 2021-05-25 | 2021-08-31 | 中国地质调查局武汉地质调查中心 | Method for identifying potential landslide hazard of reservoir bank based on rock mass degradation characteristics |
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