CN107100130A - Subgrade protection system and implementation in a kind of debris flow gully - Google Patents
Subgrade protection system and implementation in a kind of debris flow gully Download PDFInfo
- Publication number
- CN107100130A CN107100130A CN201710508664.2A CN201710508664A CN107100130A CN 107100130 A CN107100130 A CN 107100130A CN 201710508664 A CN201710508664 A CN 201710508664A CN 107100130 A CN107100130 A CN 107100130A
- Authority
- CN
- China
- Prior art keywords
- dam
- culvert
- blocking dam
- debris flow
- steel pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
- E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/08—Wall dams
- E02B7/10—Gravity dams, i.e. those in which the weight of the structure prevents overturning
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Architecture (AREA)
- Revetment (AREA)
Abstract
The invention discloses the subgrade protection system in a kind of debris flow gully and implementation, it arranges that it includes blocking dam (2), stops silt field (3), arranges and lead culvert (4) and settling tank (5) along debris flow gully (7)；Described blocking dam (2) is located in described debris flow gully (7) upstream raceway groove, described stops silt field (3) between described blocking dam (2) and the roadbed filling body (1) of downstream setting, described row leads the import of culvert (4) and described silt field (3) end of stopping is mutually linked, described row leads culvert (4) and crosses described roadbed filling body (1), and the domatic linking of outlet downstream for leading culvert (4) in described row is provided with settling tank (5)；It overcomes row's guide structure in the prior art and is easily destroyed, and ultimately results in the shortcoming that roadbed is destroyed by rush of water, and raceway groove two sides are washed away with mud-rock flow is reduced, the advantage let out under boulder is a large amount of is prevented.
Description
Background technology
It is more specifically the roadbed in a kind of debris flow gully the present invention relates to Debris Flow along Highways Prevention Technique field
Protection system and implementation.
Background technology
When mountain highway shuttles in unbroken mountains high mountain, debris flow valley area is frequently encountered, the area ditch depth slope is steep, rain
Season run-off it is big and with mud-stone flow disaster occur.Mainly there is two ways in section across debris flow gully：1. bridge；2. roadbed
Filling body.Because mud-rock flow has the characteristics of high speed, high-energy, large-size rock fragment are impacted, according to bridge, its structure is answered
It is miscellaneous, costly, when there is mud-rock flow to pass through in ditch, it will cause grave danger to bridge structure.The letter of roadbed filling body structure
Singly, using the excavated material of highway, expense is relatively low, but filling body has blocked the Src Chan of mud-rock flow, the newly-built mud-rock flow of palpus
Row leads and safeguard procedures.
The row of current leap filled-up ground leads facility, and mainly use row leads tunnel and row leads culvert.Row leads tunnel need to be in mud-rock flow
Newly-built tunnel bypasses the filling body in debris flow gully, Chinese patent in the massif of ditch side《Protection for debris flow gully is arranged
Structure》Application No.：201610837960.2 this method is used.The deficiency of this method is：The circuit that row leads tunnel is long, applies
Work is long in time limit, and construction investment is big；In addition, tunnel import also needs to build the layering discharge structure of complexity, led for reducing tunnel row
The maintenance cost and blocking risk of period.
For the high filling section in cheuch, settlement of subgrade problem is more protruded, and arranges guide structure unbalance stress, is passed
The stone masonry culvert or concrete culvert of system are easily by drawing crack, and under the huge impulsive force of mud-rock flow and abrasive force effect, row leads knot
Structure is easily destroyed, and is ultimately resulted in roadbed and is destroyed by rush of water.
The content of the invention
The first object of the present invention is the weak point for overcoming above-mentioned background technology, and proposes in a kind of debris flow gully
Subgrade protection system.
The purpose of the present invention is implemented by following technical solution：A kind of subgrade protection system in debris flow gully,
It arranges along debris flow gully, including blocking dam, stops Yu Chang, row and lead culvert and settling tank；Described blocking dam is located at described mudstone
In the raceway groove of Liu Gou upstreams, described stops silt field between described blocking dam and the roadbed filling body of downstream setting, described
The import that row leads culvert is mutually linked with described Yu Chang ends of stopping, and described row, which leads to contain, crosses described roadbed filling body, in institute
The domatic linking of outlet downstream that the row stated leads culvert is provided with settling tank.
In the above-mentioned technical solutions：Described blocking dam is formed using gravity type physical check Dun Ba and by concreting,
The dam crest of described blocking dam is provided with lattice pier shape overfall, is embedded with the bottom of described blocking dam along excessively stream direction many
The prefabricated culvert pipe of root, concrete apron and reinforced gabion protection-apron, described reinforced gabion are provided with the downstream of described blocking dam
Protection-apron is made up of multiple reinforced gabions and is laid on the top of described concrete apron.
In the above-mentioned technical solutions：Described Yu Chang bottoms of stopping are closed using clay layer, both sides and meet big vast face using slurry
Pitched work is reinforced.
In the above-mentioned technical solutions：Described row leads culvert by aliform, Yi Ziqiang, corrugated steel pipe and abrasion resistance concrete layer
Composition；The import and export two ends of described corrugated steel pipe are reinforced using aliform and a word wall, and a described word wall is located at described
Corrugated steel pipe both sides, be provided with aliform on the outside of a described word wall, a described word wall is with aliform by mixed
Solidifying soil, which is poured, to be formed, and abrasion resistance concrete layer has been poured in described corrugated steel pipe interior lower surface.
In the above-mentioned technical solutions：Described settling tank is made up of multiple stepped stiling basins, positioned at end
Concrete foundation is poured below described stiling basin, described concrete foundation is contacted with bedrock surface；Two adjacent institutes
Contact surface between the stiling basin stated is provided with subsiding crack, and the bottom of described stiling basin side is provided with downwardly projecting anti-skidding
Teeth groove, described anti-skidding teeth groove is embedded into roadbed filling body, in the side of described stiling basin and described roadbed filling body
Between be backfilled with piece stone concrete, in the notch of described stiling basin upper surface alluvial have solid particulate matter.
Present invention additionally comprises a kind of implementation：A kind of implementation of subgrade protection system in debris flow gully, it is wrapped
Include following steps；
1., by the quantity and distribution situation of bulk materials in field investigation debris flow gully, the formation area of mud-rock flow is determined
And Circulation Area；
2., in the step 1. debris flow formation region and Circulation Area of middle determination, geological conditions is good for selection, storage capacity is big before dam
Position is as the dam site of blocking dam, and the dam site number of described blocking dam determines according to the distribution situation of bulk materials in ditch；
3., step 2. middle determination dam site position carry out blocking dam foundation excavation, until meet the dam body stability against sliding will
Ask, dam abutment bank slope milling slot, the dam body of described blocking dam is embedded in bank slope basement rock；
4., described blocking dam uses gravity type physical check Dun Ba, and lattice pier shape is provided with the top of described blocking dam
Overfall excessively stream, buries the prefabricated culvert pipe described in many along excessively stream direction in described blocking dam dam bottom surface, is blocked in described
The toe downstream casting concrete protection-apron on dam, piles up reinforced gabion protection-apron above described concrete apron；
5., described silt field of stopping is located at region between roadbed filling body and blocking dam, and described stops Yu Chang bottoms using glutinous
Soil layer is closed, described to stop Yu Chang both sides and meet big vast face using the reinforcing of stone masonry bank protection；When mud-rock flow is from upstream mud-rock flow raceway groove
Under when letting out, solid matter will deposit and reduce flow velocity stop producing in silt field；
6., described row, which leads to contain, crosses described roadbed filling body, and described row, which leads culvert, includes aliform, Yi Ziqiang, steel
Bellows and abrasion resistance concrete layer；Aliform and a word wall are provided with the two ends of the import and export of described corrugated steel pipe；
A described word wall is located at the both sides of described corrugated steel pipe, and described aliform is located on the outside of a described word wall, described
One word wall is formed with aliform by concreting；Described corrugated steel pipe inner tubal wall bottom pours abrasion resistance concrete layer；
7., to lead culvert outlet downstream positioned at described row domatic for described settling tank, described settling tank by it is multiple be in ladder
The stiling basin composition of shape, multiple described stiling basins are formed using C35 concretings；Described stiling basin bottom side is set
There is anti-skidding teeth groove, C15 slabstone concrete backfills are used in the side of described stiling basin；Adjacent described stiling basin contact surface
Between set subsiding crack, in the notch above described stiling basin alluvial have solid particulate matter.
In the above-mentioned technical solutions：Described reinforced gabion protection-apron is assembled by several reinforced gabions, each described
Reinforced gabion length, width and height size be 2 meters × 1 meter × 1 meter；It is linked to be between adjacent each described reinforced gabion using U-shaped nail
It is overall.
In the above-mentioned technical solutions：1.5 meters described of prefabricated culvert pipe diameter.
In the above-mentioned technical solutions：Described corrugated steel pipe is formed using multiple section of jurisdiction on-site consolidations, each described steel
Using overlap joint bolt connection between bellows section of jurisdiction, the diameter of described corrugated steel pipe is according to the flow and solid matter of mud-rock flow
Particle size is determined.
The present invention includes following advantage：1st, blocking dam is located in the raceway groove of debris flow gully upstream, to what is let out under upstream of blocking
Part bulk materials are restarted in ratchel, control raceway groove, raise ditch bed reference plane, reduce mud-rock flow and raceway groove two sides are rushed
Brush, prevents from letting out under boulder is a large amount of, cuts down the peak amount and kinetic energy of mud-rock flow.
2nd, stop silt field and be located at region between roadbed filling body and blocking dam, dike of blocking together is formed using roadbed filling body
Dam, mud-rock flow is also easy to produce substantial amounts of alluvial in the region and reduces flow velocity, can reduce roadbed and row leads the erosion and alluvial of culvert
Degree.
3rd, row leads the culvert of culvert as corrugated steel pipe and the composite construction of concrete, can not only adapt to larger uneven heavy
Drop and deformation, and the performance with stronger anti-mud-rock-flow-impact and abrasion；Patent row of the present invention leads culvert and directly filled out from roadbed
Passed through under building body, row's wire is short out, and the construction period is short, and construction investment is small, maintenance cost and blocking risk are smaller.
4th, corrugated steel pipe piece is prefabricated by producer, and row leads culvert on-site consolidation speed of application soon, ensure that and construction is completed before flood,
It can avoid passing the flood period measure using mud-rock flow.
5th, settling tank can cut down the solid particulate matter deposited in the flow velocity and kinetic energy of mud-rock flow, stiling basin and can protect
Bottom of pond is not by erosion.
6th, the subgrade protection system in debris flow gully is made up of " blocking dam-stop silt field-row lead culvert-settling tank ", can be filled
Divide the excavated material using highway, simple in construction, expense is relatively low, durable in use, it is ensured that the stability and persistence of roadbed.
Brief description of the drawings
Fig. 1 is floor plan of the invention.
Fig. 2 is the upstream stereogram of blocking dam in the present invention.
Fig. 3 is blocking dam cross-sectional view in the present invention.
Fig. 4 stops Yu Chang, row for the present invention and leads the profile of culvert and settling tank.
Fig. 5 leads culvert inlet and outlet elevation view for row in the present invention.
Fig. 6 is the structural representation detail drawing of stiling basin in the present invention.
In figure：Roadbed filling body 1, blocking dam 2, overfall 2.1, prefabricated culvert pipe 2.2, reinforced gabion protection-apron 2.3, concrete
Protection-apron 2.4, stop silt field 3, clay layer 3.1, stone masonry bank protection 3.2, row lead culvert 4, aliform 4.1, a word wall 4.2, corrugated steel pipe
4.3rd, abrasion resistance concrete layer 4.4, settling tank 5, stiling basin 5.1, anti-skidding teeth groove 5.1.1, piece stone concrete 5.2, subsiding crack
5.3rd, concrete foundation 5.4, solid particulate matter 5.5, mud-rock flow 6, debris flow gully 7.
Embodiment
The performance that the invention will now be described in detail with reference to the accompanying drawings, but they do not constitute limitation of the invention, only
It is for example；Advantages of the present invention will become clearer and be readily appreciated that by illustrating simultaneously.
Shown in reference picture 1-6：Subgrade protection system in a kind of debris flow gully of the present invention, it is arranged along debris flow gully 7, it
Including blocking dam 2, stop silt field 3, row and lead culvert 4 and settling tank 5；Described blocking dam 2 is located at the described upstream raceway groove of debris flow gully 7
Interior, described stops silt field 3 between described blocking dam 2 and the roadbed filling body 1 of downstream setting, and described row, which leads, contains 4
Import is mutually linked with the described end of silt field 3 of stopping, and described row leads culvert 4 and crosses described roadbed filling body 1, in described row
The domatic linking of outlet downstream for leading culvert 4 is provided with settling tank 5.
Described blocking dam 2 is formed using gravity type physical check Dun Ba and by concreting, in described blocking dam 2
Dam crest is provided with lattice pier shape overfall 2.1, and many prefabricated culvert pipe are embedded with along excessively stream direction in the bottom of described blocking dam 2
2.2, concrete apron 2.4 and reinforced gabion protection-apron 2.3, described reinforced gabion are provided with the downstream of described blocking dam 2
Protection-apron 2.3 is made up of multiple reinforced gabions and is laid on the top of described concrete apron 2.4.
The described bottom of silt field 3 of stopping is closed using clay layer 3.1, both sides and meet big vast face using stone masonry bank protection 3.2 plus
Gu.
Described row leads culvert 4 by 4.4 groups of aliform 4.1, a word wall 4.2, corrugated steel pipe 4.3 and abrasion resistance concrete layer
Into；The import and export two ends of described corrugated steel pipe 4.3 are reinforced using the word wall 4.2 of aliform 4.1 and one, described Yi Ziqiang
4.2 are located at the both sides of described corrugated steel pipe 4.3, and the outside of a described word wall 4.2 is provided with aliform 4.1, by mixed
Solidifying soil, which is poured, to be formed, and abrasion resistance concrete layer 4.4 has been poured in the described interior lower surface of corrugated steel pipe 4.3.
Described settling tank 5 is made up of multiple stepped stiling basins 5.1, positioned at the stiling basin 5.1 described in end
Lower section poured concrete foundation 5.4, described concrete foundation 5.4 is contacted with bedrock surface；The two neighboring described power that disappears
Contact surface between pond 5.1 is provided with subsiding crack 5.3, and the bottom of the described side of stiling basin 5.1 is provided with downwardly projecting anti-
Slip teeth groove 5.1.1, described anti-skidding teeth groove 5.1.1 are embedded into roadbed filling body 1, the side of described stiling basin 5.1 with
Piece stone concrete 5.2 is backfilled between described roadbed filling body 1, is deposited in the notch of the described upper surface of stiling basin 5.1
There is solid particulate matter 5.5.
A kind of implementation of subgrade protection system in debris flow gully, it comprises the following steps；
1., by the quantity and distribution situation of bulk materials in field investigation debris flow gully, the formation area of mud-rock flow is determined
And Circulation Area；
2., in the step 1. debris flow formation region and Circulation Area of middle determination, geological conditions is good for selection, storage capacity is big before dam
Position is as the dam site of blocking dam 2, and the dam site number of described blocking dam 2 determines according to the distribution situation of bulk materials in ditch；
3., step 2. middle determination dam site position carry out the foundation excavation of blocking dam 2, until meet the dam body stability against sliding will
Ask, dam abutment bank slope milling slot, the dam body of described blocking dam 2 is embedded in bank slope basement rock；
4., described blocking dam 2 uses gravity type physical check Dun Ba, and the top of described blocking dam 2 is provided with lattice pier
The excessively stream of shape overfall 2.1, the prefabricated culvert pipe 2.2 described in many is embedded with along excessively stream direction in the described dam bottom surface of blocking dam 2,
The toe downstream of described blocking dam 2 has poured concrete apron 2.4 in advance, is piled up in the described top of concrete apron 2.4
There is reinforced gabion protection-apron 2.3；
5., described silt field 3 of stopping is located at region between roadbed filling body 1 and blocking dam 2, and the described bottom of silt field 3 of stopping is adopted
Closed with clay layer 3.1, it is described to stop the both sides of silt field 3 and meet big vast face to reinforce using stone masonry bank protection 3.2；When mud-rock flow 6 is from upper
When being let out under trip mud-rock flow raceway groove, solid matter will deposit and reduce flow velocity stopping producing in silt field 3；
6., described row leads culvert 4 and crosses described roadbed filling body 1, and described row, which leads culvert 4, includes aliform 4.1, a word
Wall 4.2, corrugated steel pipe 4.3 and abrasion resistance concrete layer 4.4；It is respectively provided with the two ends of the import and export of described corrugated steel pipe 4.3
There is the word wall 4.2 of aliform 4.1 and one；A described word wall 4.2 is located at the both sides of described corrugated steel pipe 4.3, eight described words
Wall 4.1 is located at the described outside of a word wall 4.2, and a described word wall 4.2 is formed with aliform 4.1 by concreting；Institute
The inner tubal wall bottom of corrugated steel pipe 4.3 stated pours abrasion resistance concrete layer 4.4；
7., to lead 4 outlet downstreams of culvert positioned at described row domatic for described settling tank 5, described settling tank 5 by it is multiple be in rank
The stiling basin 5.1 of scalariform is constituted, and multiple described stiling basins 5.1 are formed using C35 concretings；Described stiling basin
5.1 bottom sides are provided with anti-skidding teeth groove 5.1.1, in piece stone concrete 5.2 time of the side of described stiling basin 5.1 using C15
Fill out；Subsiding crack 5.3 is set between the adjacent described contact surface of stiling basin 5.1, is become silted up in the notch above described stiling basin 5.1
Product has solid particulate matter 5.5.
Described reinforced gabion protection-apron 2.3 is spliced by several reinforced gabions, the chi of each described reinforced gabion
Very little is 2m × 1m × 1m (length × width × height)；Entirety is linked to be using U-shaped nail between adjacent each described reinforced gabion；Described
1.5 meters of the diameter of prefabricated culvert pipe 2.2, and can suitably be increased according to the flow of mud-rock flow.
Described corrugated steel pipe 4.3 is formed using section of jurisdiction on-site consolidation, between the section of jurisdiction of each described corrugated steel pipe 4.3
Using overlap joint bolt connection, the diameter of described corrugated steel pipe 4.3 is true according to the flow and solid matter particle size of mud-rock flow
It is fixed.
Subgrade protection system in a kind of debris flow gully of the present invention, its protection system it is main by blocking dam 2, stop silt field 3, row
Lead culvert 4, the part of settling tank 5 four composition.
Roadbed filling body 1 can be filled using highway excavated material and formed, and its standard of filling should meet corresponding Regulations will
Ask.
Blocking dam 2 is located in debris flow gully upstream formation area and Circulation Area, is protected by dam body, prefabricated culvert pipe 2.2, reinforced gabion
Smooth 2.3, concrete apron 2.4 is constituted.
According to landform, geological conditions in ditch, the selection of the dam site of blocking dam 2 in geological conditions preferably, before dam the larger position of storage capacity
Put, its number quantity and distribution situation of bulk materials in ditch is determined.Blocking dam 2 be gravity type physical check Dun Ba, dam body by
Concreting is formed, and dam crest sets the excessively stream of lattice pier shape overfall 2.1.Dam body bottom is embedded with some prefabricated culvert pipe along excessively stream direction
2.2, the flowing material of dam bottom small particle is led to arrange.Dam body downstream is made up of reinforced gabion protection-apron 2.3 and concrete apron 2.4
Protection-apron, prevents toe is drawn from rinsing；Reinforced gabion protection-apron 2.3 is located at the described top of concrete apron 2.4.
Described silt field 3 of stopping is located at region between roadbed filling body 1 and blocking dam 2, using the formation of roadbed filling body 1 together
Block dykes and dams.Stop the bottom of silt field 3 to close using clay layer 3.1, both sides and meet big vast face using stone masonry bank protection 3.2.
When mud-rock flow 6 is let out under the raceway groove of upstream (arrow in figure is the flow direction of mud-rock flow), solid matter will be
Stop producing in silt field 3 and deposit and reduce flow velocity, erosion and the alluvial degree of containing 4 are led to roadbed filling body 1 and row so as to reduce.
Described row leads culvert 4 and crosses roadbed filling body 1, and roadbed filling body 1 can utilize the excavated material of highway.Row lead culvert 4 by
Aliform 4.1, a word wall 4.2, corrugated steel pipe 4.3 and abrasion resistance concrete layer 4.4 are constituted.4.2,4.1 and one word wall of aliform
Culvert is led in row to import and export, and is formed by concreting.
Row, which leads, contains 4 culverts as corrugated steel pipe 4.3 and the composite construction of abrasion resistance concrete layer 4.4, and the structure can adapt to
Larger differential settlement and deformation.
Then corrugated steel pipe 4.3 is poured resistant abrasion in its inner tubal wall lower ranges and is mixed by corrugated steel pipe piece on-site consolidation
Solidifying soil layer 4.4, the service life of culvert is led to extend row.
Corrugated steel pipe piece is prefabricated by producer, and row leads 4 on-site consolidation speed of applications of culvert soon, ensure that and construction is completed before flood,
It can avoid passing the flood period measure using mud-rock flow.
Settling tank 5 positioned at row lead culvert 4 outlet downstreams it is domatic, be made up of stepped stiling basin 51.The bottom of stiling basin 5.1
Backfilled provided with anti-skidding teeth groove 5.1.1, around it using piece stone concrete 5.2.Subsiding crack 5.3 is set between described stiling basin 5.1,
Described subsiding crack 5.3 stitches interior fill out and sets pitch loose hemp fiber.
The described bottom of settling tank 5 is contacted provided with concrete foundation 5.4 with bedrock surface.The solid of alluvial in stiling basin 5.1
Particulate matter 5.5 can protect bottom of pond not by erosion.
The implementation of subgrade protection system in a kind of debris flow gully of the present invention is as follows：
1., by the quantity and distribution situation of bulk materials in field investigation debris flow gully, the formation area of mud-rock flow is determined
And Circulation Area.
2., in the debris flow formation region and Circulation Area that 1. step determines, preferably, before dam storage capacity is larger for selection geological conditions
Position, as the dam site of blocking dam 2, the number of dam site is determined according to the distribution situation of bulk materials in ditch.
3., the dam site position 2. determined in step carries out the foundation excavation of blocking dam 2, will until meeting the dam body stability against sliding
Ask, dam abutment bank slope milling slot, dam body is embedded in bank slope basement rock.
4., blocking dam 2 uses gravity type physical check Dun Ba, and dam crest sets lattice pier shape overfall excessively stream.Blocking dam 2 uses C25
Concreting, prefabricated culvert pipe 2.2, described prefabricated culvert pipe are being buried in the middle part of the axis of dam at original ground level along excessively stream direction
2.2 1.5 meters of culvert pipe diameters.The toe downstream of blocking dam 2 pours C15 concrete aprons 2.3, on described concrete apron 2.3
Reinforced gabion protection-apron 2.4 is piled up, both collectively form the downstream apron of blocking dam 2, to prevent toe is drawn from rinsing.Described reinforcing bar
Gabion protection-apron 2.4 is assembled by several reinforced gabions, the size of single described reinforced gabion for 2m × 1m × 1m (it is long ×
It is wide × high), entirety is linked to be using U-shaped nail between adjacent reinforced gabion；Block stone in described reinforced gabion is difficult to be fresh
Decayed rock.
5., stop silt field 3 and be located at region between roadbed filling body 1 and blocking dam 2, formed and blocked together using roadbed filling body 1
Keep off capacity before dykes and dams, dam and stop silt storage capacity as mud-rock flow.Roadbed filling must meet related specifications requirement, stop the bottom of silt field 3 and adopt
Closed with clay layer 3.1, both sides and meet big vast face using stone masonry bank protection 3.2.
When mud-rock flow 6 is let out under the raceway groove of upstream, solid matter will stop producing alluvial in silt field 3 and reduce flow velocity, from
And reduce erosion and the alluvial degree that culvert is led to roadbed and row.
6., row leads culvert 4 and crosses roadbed, by aliform 4.1, a word wall 4.2, corrugated steel pipe 4.3 and abrasion resistance concrete layer
4.4 composition.The word wall 4.2 of aliform 4.1 and one is led culvert 4 positioned at row and imported and exported, and the described word wall 4.2 of aliform 4.1 and one is adopted
Formed with C15 slabstone concretings.After roadbed filling body 1 fills and leads the bottom design elevation for containing 4 to row, described steel ripple
Line pipe 4.3 is formed using section of jurisdiction on-site consolidation, and is embedded in roadbed filling body 1.
Using overlap joint bolt connection between the section of jurisdiction of described firm bellows 4.3, the assembly of corrugated steel pipe 4.3 should meet related rule
Model requirement.The diameter of corrugated steel pipe 4.3 is determined according to the flow and solid matter particle size of mud-rock flow.In corrugated steel pipe 4.3
Abrasion resistance concrete layer 4.4 is poured in tube wall lower ranges, the service life of culvert 4 is led to extend row.
7., settling tank 5 positioned at row lead culvert 4 outlet downstreams it is domatic, described settling tank 5 is by stepped stiling basin 5.1
Composition, is formed using C35 concretings.
The bottom of stiling basin 5.1 is provided with anti-skidding teeth groove, is backfilled using C15 pieces stone concrete 5.2 around it.Stiling basin 5.1 is each
Subsiding crack 5.3 is set between rank, described subsiding crack 5.3 stitches interior fill out and sets pitch loose hemp fiber.The bottom of settling tank 5 is provided with concrete foundation
5.4 contact with bedrock surface.The solid particulate matter 5.5 of alluvial can protect bottom of pond not by erosion in stiling basin 5.1.
Above-mentioned unspecified part is prior art.
Claims (9)
1. the subgrade protection system in a kind of debris flow gully, it is arranged along debris flow gully (7), it is characterised in that：It includes blocking
Dam (2), stop silt field (3), row lead culvert (4) and settling tank (5)；Described blocking dam (2) is located at described debris flow gully (7) upstream
In raceway groove, described stops silt field (3) between described blocking dam (2) and the roadbed filling body (1) of downstream setting, described
Row leads the import of culverts (4) and is mutually linked with described silt field (3) end of stopping, described row lead culvert (4) cross described in roadbed fill out
Building body (1), the domatic linking of outlet downstream for leading culvert (4) in described row is provided with settling tank (5).
2. the subgrade protection system in a kind of debris flow gully according to claim 1, it is characterised in that：Described blocking dam
(2) use gravity type physical check Dun Ba and formed by concreting, the dam crest of described blocking dam (2) is provided with lattice pier shape
Overfall (2.1), is embedded with many prefabricated culvert pipe (2.2), described in the bottom of described blocking dam (2) along excessively stream direction
The downstream of blocking dam (2) is provided with concrete apron (2.4) and reinforced gabion protection-apron (2.3), described reinforced gabion protection-apron
(2.3) top of described concrete apron (2.4) is made up of and is laid on multiple reinforced gabions.
3. the subgrade protection system in a kind of debris flow gully according to claim 1 or 2, it is characterised in that：Described stops
Silt field (3) bottom using clay layer (3.1) close, both sides and meet big vast face using stone masonry bank protection (3.2) reinforce.
4. the subgrade protection system in a kind of debris flow gully according to claim 3, it is characterised in that：Described row leads culvert
(4) it is made up of aliform (4.1), Yi Ziqiang (4.2), corrugated steel pipe (4.3) and abrasion resistance concrete layer (4.4)；Described steel
The import and export two ends of bellows (4.3) are reinforced using aliform (4.1) and a word wall (4.2), described Yi Ziqiang (4.2) position
In the both sides of described corrugated steel pipe (4.3), aliform (4.1) is provided with the outside of described Yi Ziqiang (4.2), it is described
One word wall (4.2) is formed with aliform (4.1) by concreting, is poured in described corrugated steel pipe (4.3) interior lower surface
Abrasion resistance concrete layer (4.4) is built.
5. the subgrade protection system in a kind of debris flow gully according to claim 4, it is characterised in that：Described settling tank
(5) it is made up of, has been poured below the stiling basin (5.1) described in end multiple stepped stiling basins (5.1)
Concrete foundation (5.4), described concrete foundation (5.4) is contacted with bedrock surface；Stiling basin (5.1) described in adjacent two
Between contact surface be provided with subsiding crack (5.3), the bottom of described stiling basin (5.1) side is provided with downwardly projecting anti-skidding
Teeth groove (5.1.1), described anti-skidding teeth groove (5.1.1) is embedded into roadbed filling body (1), in described stiling basin (5.1)
Piece stone concrete (5.2) is backfilled between side and described roadbed filling body (1), in described stiling basin (5.1) upper surface
Notch in alluvial have solid particulate matter (5.5).
6. implement the method for the subgrade protection system in a kind of debris flow gully in claim 1-5 described in any claim,
It is characterized in that：It comprises the following steps；
1., by the quantity and distribution situation of bulk materials in field investigation debris flow gully, the formation Qu Heliu of mud-rock flow is determined
Logical area；
2., in the step 1. debris flow formation region and Circulation Area of middle determination, geological conditions is good for selection, the big position of storage capacity before dam
As the dam site of blocking dam (2), the dam site number of described blocking dam (2) is determined according to the distribution situation of bulk materials in ditch；
3., step 2. middle determination dam site position carry out blocking dam (2) foundation excavation, until meet the dam body stability against sliding will
Ask, dam abutment bank slope milling slot, the dam body of described blocking dam (2) is embedded in bank slope basement rock；
4., described blocking dam (2) uses gravity type physical check Dun Ba, and lattice pier is provided with the top of described blocking dam (2)
Shape overfall (2.1) excessively stream, the prefabricated culvert pipe described in many is embedded with along excessively stream direction in described blocking dam (2) dam bottom surface
(2.2) concrete apron (2.4), has been poured in advance in the toe downstream of described blocking dam (2), in described concrete apron
(2.4) reinforced gabion protection-apron (2.3) has been piled up in top；
5., described silt field (3) of stopping is located at region between roadbed filling body (1) and blocking dam (2), and described stops silt field (3) bottom
Portion is closed using clay layer (3.1), described to stop silt field (3) both sides and meet big vast face using stone masonry bank protection (3.2) reinforcing；Work as mud
When rock glacier (6) is let out under the mud-rock flow raceway groove of upstream, solid matter will deposit and reduce flow velocity stopping producing in silt field (3)；
6., described row leads culvert (4) and crosses described roadbed filling body (1), described row lead culverts (4) include aliform (4.1),
One word wall (4.2), corrugated steel pipe (4.3) and abrasion resistance concrete layer (4.4)；In the import and export of described corrugated steel pipe (4.3)
Two ends be provided with aliform (4.1) and a word wall (4.2)；Described Yi Ziqiang (4.2) is located at described corrugated steel pipe
(4.3) both sides, described aliform (4.1) is located on the outside of described Yi Ziqiang (4.2), described aliform (4.1) and one
Word wall (4.2) is formed by concreting；Described corrugated steel pipe (4.3) inner tubal wall bottom pours abrasion resistance concrete layer
(4.4)；
7., described settling tank (5) leads that culvert (4) outlet downstream is domatic positioned at described row, and described settling tank (5) is in by multiple
Stair-stepping stiling basin (5.1) composition, multiple described stiling basins (5.1) are formed using C35 concretings；Described disappears
Power pond (5.1) bottom side is provided with anti-skidding teeth groove (5.1.1), and C15 slabstone coagulations are used in the side of described stiling basin (5.1)
Native (5.2) backfill；Subsiding crack (5.3) is set between adjacent described stiling basin (5.1) contact surface, in described stiling basin
(5.1) alluvial has solid particulate matter (5.5) in notch above.
7. implement the method for the subgrade protection system in a kind of debris flow gully described in claim 6, it is characterised in that：Described
Reinforced gabion protection-apron (2.3) is assembled by several reinforced gabions, and the length, width and height size of each described reinforced gabion is 2 meters
× 1 meter × 1 meter；Entirety is linked to be using U-shaped nail between adjacent each described reinforced gabion.
8. implement the implementation of the subgrade protection system in a kind of debris flow gully described in claim 7, it is characterised in that：Institute
1.5 meters of prefabricated culvert pipe (2.2) diameter stated.
9. implement the method for the subgrade protection system in a kind of debris flow gully described in claim 7 or 8, it is characterised in that：Institute
The corrugated steel pipe (4.3) stated is formed by multiple section of jurisdiction on-site consolidations, is used between the section of jurisdiction of each described corrugated steel pipe (4.3)
Bolt connection is overlapped, the diameter of described corrugated steel pipe (4.3) is determined according to the flow and solid matter particle size of mud-rock flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710508664.2A CN107100130A (en) | 2017-06-28 | 2017-06-28 | Subgrade protection system and implementation in a kind of debris flow gully |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710508664.2A CN107100130A (en) | 2017-06-28 | 2017-06-28 | Subgrade protection system and implementation in a kind of debris flow gully |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107100130A true CN107100130A (en) | 2017-08-29 |
Family
ID=59663581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710508664.2A Pending CN107100130A (en) | 2017-06-28 | 2017-06-28 | Subgrade protection system and implementation in a kind of debris flow gully |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107100130A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107858990A (en) * | 2017-12-13 | 2018-03-30 | 中国电建集团成都勘测设计研究院有限公司 | The arrangement of Canyon Area high dam ditch engineering of water treatment |
| CN108193654A (en) * | 2018-01-22 | 2018-06-22 | 汪通鲜 | A kind of pressure-adjusting type culvert drainage system of field irrigation |
| CN108442332A (en) * | 2018-05-25 | 2018-08-24 | 中国电建集团成都勘测设计研究院有限公司 | For intercepting the comb teeth-shaped to remain in a standstill gear row's structure |
| CN108729527A (en) * | 2018-08-15 | 2018-11-02 | 黑龙江省水土保持科学研究院 | A kind of ditch head drop prefabricated component |
| CN115262436A (en) * | 2022-08-01 | 2022-11-01 | 甘肃省科学院地质自然灾害防治研究所 | Slope debris flow prevention and control device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203144986U (en) * | 2013-03-04 | 2013-08-21 | 中国水电顾问集团华东勘测设计研究院 | Discharging and guiding arrangement structure of debris flow ditch |
| CN104499454A (en) * | 2014-12-15 | 2015-04-08 | 四川大学 | Flow state connected building suitable for supercritical flow bend |
| CN104878769A (en) * | 2015-06-19 | 2015-09-02 | 中国电建集团成都勘测设计研究院有限公司 | Debris flow protecting system |
| CN206916686U (en) * | 2017-06-28 | 2018-01-23 | 长江勘测规划设计研究有限责任公司 | A kind of subgrade protection system in debris flow gully |
-
2017
- 2017-06-28 CN CN201710508664.2A patent/CN107100130A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203144986U (en) * | 2013-03-04 | 2013-08-21 | 中国水电顾问集团华东勘测设计研究院 | Discharging and guiding arrangement structure of debris flow ditch |
| CN104499454A (en) * | 2014-12-15 | 2015-04-08 | 四川大学 | Flow state connected building suitable for supercritical flow bend |
| CN104878769A (en) * | 2015-06-19 | 2015-09-02 | 中国电建集团成都勘测设计研究院有限公司 | Debris flow protecting system |
| CN206916686U (en) * | 2017-06-28 | 2018-01-23 | 长江勘测规划设计研究有限责任公司 | A kind of subgrade protection system in debris flow gully |
Non-Patent Citations (1)
| Title |
|---|
| 刘波等: "乌东德水电站猪拱地沟泥石流特性与防治对策", 《长江科学院院报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107858990A (en) * | 2017-12-13 | 2018-03-30 | 中国电建集团成都勘测设计研究院有限公司 | The arrangement of Canyon Area high dam ditch engineering of water treatment |
| CN107858990B (en) * | 2017-12-13 | 2023-09-01 | 中国电建集团成都勘测设计研究院有限公司 | Diversion construction method of arrangement structure of canyon area high dam ditch water treatment engineering |
| CN108193654A (en) * | 2018-01-22 | 2018-06-22 | 汪通鲜 | A kind of pressure-adjusting type culvert drainage system of field irrigation |
| CN108442332A (en) * | 2018-05-25 | 2018-08-24 | 中国电建集团成都勘测设计研究院有限公司 | For intercepting the comb teeth-shaped to remain in a standstill gear row's structure |
| CN108729527A (en) * | 2018-08-15 | 2018-11-02 | 黑龙江省水土保持科学研究院 | A kind of ditch head drop prefabricated component |
| CN115262436A (en) * | 2022-08-01 | 2022-11-01 | 甘肃省科学院地质自然灾害防治研究所 | Slope debris flow prevention and control device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107100130A (en) | Subgrade protection system and implementation in a kind of debris flow gully | |
| CN104131575B (en) | A kind of karst height grows the leak stopping water discharge method of the stratum dam foundation | |
| CN102966072B (en) | Construction method for treating widened and heightened engineering joint surfaces of dikes on soft clay foundation | |
| CN111535357A (en) | Water intake pipeline structure penetrating through soft foundation dike below flood level and construction method | |
| CN105178125A (en) | Lake region high filling road base sand blowing embankment construction method and embankment structure | |
| CN107119624A (en) | The countermeasure system and implementation of large-scale Dumping Sites in a kind of debris flow gully | |
| CN111455737A (en) | Wading railway roadbed structure and construction method thereof | |
| CN206916686U (en) | A kind of subgrade protection system in debris flow gully | |
| CN111270698A (en) | Protective structure for exposed diseases of bridge pile foundation in sand-mining river channel in mountainous area and construction method of protective structure | |
| WO2022100168A1 (en) | Drainage chute and drainage culvert combined plugging and dredging method for tailings pond | |
| CN111119154A (en) | River valley type debris flow ditch waste slag land-making structure and construction method | |
| CN212294186U (en) | Wading railway roadbed structure | |
| CN207228038U (en) | The countermeasure system of large-scale Dumping Sites in a kind of debris flow gully | |
| CN219410355U (en) | Flexible side-width structure of high-fill embankment of existing railway | |
| CN210177294U (en) | Mountain area highway subgrade | |
| CN206298869U (en) | A kind of concrete guard wall structure of free drainage | |
| CN210658236U (en) | Slag stacking structure | |
| CN212316981U (en) | Water intake pipeline structure penetrating through soft foundation dike below flood level | |
| CN205062597U (en) | Road bed embankment structure of blowing sand is filled out to lake region height | |
| CN212223936U (en) | A protective structure that is used for mountain area to adopt sand river course inner bridge pile foundation to expose disease | |
| RU2176700C1 (en) | Method for protecting territory from flooding | |
| CN220336904U (en) | Open cut tunnel structure for connecting section of underground excavation tunnel portal to pass through debris flow ditch | |
| CN114775620B (en) | Construction method for progressive excavation of plain riverbank under mucky soil condition | |
| CN220644501U (en) | Plugging and drainage device for karst depression bottom water falling hole | |
| CN220352732U (en) | Water permeable body structure for protecting river side slope |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170829 |