CN106504126A - A kind of comprehensive estimation method of ancient building channel drainage system health status - Google Patents
A kind of comprehensive estimation method of ancient building channel drainage system health status Download PDFInfo
- Publication number
- CN106504126A CN106504126A CN201610964014.4A CN201610964014A CN106504126A CN 106504126 A CN106504126 A CN 106504126A CN 201610964014 A CN201610964014 A CN 201610964014A CN 106504126 A CN106504126 A CN 106504126A
- Authority
- CN
- China
- Prior art keywords
- defect
- channel
- scoring
- ancient building
- represent
- 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
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000003862 health status Effects 0.000 title claims abstract description 15
- 230000007547 defect Effects 0.000 claims abstract description 254
- 230000007847 structural defect Effects 0.000 claims abstract description 48
- 230000007849 functional defect Effects 0.000 claims abstract description 44
- 230000004888 barrier function Effects 0.000 claims description 20
- 238000000151 deposition Methods 0.000 claims description 20
- 230000008021 deposition Effects 0.000 claims description 17
- 238000007667 floating Methods 0.000 claims description 12
- 238000004458 analytical method Methods 0.000 claims description 8
- 238000011156 evaluation Methods 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000007812 deficiency Effects 0.000 claims description 5
- 206010033799 Paralysis Diseases 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000013507 mapping Methods 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 238000011160 research Methods 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- 238000004901 spalling Methods 0.000 claims description 3
- 235000013399 edible fruits Nutrition 0.000 claims 1
- 239000010902 straw Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000009897 systematic effect Effects 0.000 abstract description 2
- 238000007726 management method Methods 0.000 description 4
- 238000010009 beating Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 229940126214 compound 3 Drugs 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/08—Construction
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
Landscapes
- Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Economics (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Human Resources & Organizations (AREA)
- Marketing (AREA)
- Primary Health Care (AREA)
- Strategic Management (AREA)
- Tourism & Hospitality (AREA)
- General Business, Economics & Management (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Public Health (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
A kind of comprehensive estimation method of ancient building channel drainage system health status, belongs to the technical field of ancient times pipeline assessment.(1) to collecting channel data (channel CAD diagram, the photo of robot shooting, image) using modern pipeline detection technology before ancient building channel defect estimation, more adding system comprehensively and truly finds out the essential informations such as the construction of pipeline, size.(2) systematic classification (structural defect and functional defect) has been carried out to ancient building channel defect, various defects have been carried out with detailed definition explanation simultaneously, and channel defect level is scored, determine defect rank, complete assessment is carried out to ancient building channel defect condition finally.For providing reference frame to the assessment of ancient building channel defect of drainage system from now on.
Description
Technical field
The invention belongs to the technical field of ancient times pipeline assessment, specifically, is related to a kind of ancient building channel drainage system
Comprehensive Assessment of Health Status method.
Background technology
Historical and cultural heritage is the crystallization of human civilization, wherein, architectural heritage as its important ingredient, in the world
Various countries receive more and more extensive attention.China is with a long history, and existing ancient building is important culture rarity.
The important value having due to itself, the protection of ancient building have very high requirement to environment.And wherein draining system
System is one of its most key infrastructure：Ancient building internal drainage system needs the structure with health, efficient draining
Ability is minimum to ensure the hydrops and local waterlogging risk to be down to；And impeded drainage will cause damage to the structure of ancient building, sternly
Wall crazing may be caused during weight or even caved in.Most ancient buildings experienced the centuries even wind and rain of more than one thousand years, after several
Dynasty repeatedly changes, extends or repairs work, and the integrity degree of drainage system data has been short of, part path is unclear, in addition
The factors such as matter condition change, few along with assessing to ancient building channel drainage system at present and ununified and effectively
Appraisal procedure.
In recent years, municipal drainage system against rain has at aspects such as Planning Principles, design standard and maintenance management means
Very big change, constantly updates for management of drainage system and the technological means that evaluates.By by these new theories in industry,
Ways and means is applied on the health degree analysis and Evaluation of Functional of ancient building drainage system, furthermore using modern science inspection
Survey means and the combination of computer technology, explore the Scientific evaluation method of a set of ancient building channel drainage system, by ancient building
Interior either overt or covert, a gas in length and breadth escape canal detection is clear and vivo presents, and formulates science according to assessment result
Repairerment and maintenance scheme, safeguard the safety of the persistence and structure of its function, be one and have scientific and technological progress meaning and text concurrently
Change the work being worth.
Content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the purpose of the present invention is that to there are provided a kind of principle simple, practical
The strong ancient building channel drainage system Comprehensive Assessment of Health Status method of property.
The technical solution adopted in the present invention is a kind of comprehensive estimation method of ancient building channel drainage system health status.
Following step is mainly adopted：
The first step, early stage collection of data.In ancient building survey region, by modern detecting (such as photographing unit, hand-held
Video and closed-circuit television, small scale robot etc.) survey ancient building channel present situation data is collected (such as drawing, photo, image data
Deng).Every channel rejected region photo will be screened, and determine that defect often located by every channel, and require in every place's defect
Number of photos m at position, preferably m are less than or equal to 4, i.e. 0≤m≤4.
Second step, for the data that survey region channel is collected, by ancient building channel defect be divided into structural defect and
Functional defect；Structural defect mainly includes that damaged (PS), arm housed joint (AJ), foreign body penetrate (CR) three types, structure
Property defect A represents, breakage A1Represent, arm housed joint A2Represent, foreign body is penetrated uses A3Represent, i.e. A={ A1, A2, A3}；Work(
Energy property defect mainly includes depositing (CJ), barrier (ZW), rubbish (LJ) three types, and functional defect is represented with B, and deposition is used
B1Represent, barrier B2Represent, rubbish B3Represent, i.e. B={ B1, B2, B3}.
3rd step, by being defined six kinds of defects of ancient building channel, defect system, and carries out beating to defect level
Point.
The definition of structural defect：(such as damaged, arm is dark for the defect of impact ancient building channel structure intensity and service life
Connect, foreign body is penetrated).Structural defect can be improved by maintenance.Structural defect can be expressed as Aij, wherein i represents
Channel defect type, j represent the Level in channel defect type；Structural defect scoring can be expressed as tAij, wherein
tAij={ t1, t2, t3..., tj}.
(1) definition of damaged (PS)：The external pressure of ancient building channel causes channel to become more than the holding capacity of itself
Shape, rupture and damage.Such as such as there is slight crack, breach, crushes, deforms, caving at the phenomenon in channel inwall.Main representation has vertical
To, ring and compound 3 kinds.If the visible slight crack of canal wall, obvious gap is formed, but the shape of channel is substantially unaffected, surface
There are the phenomenons such as male and fomale(M＆F) in light spalling, canal wall, then open defect rank is 1, and defect scoring score value is 0.5 point；Can represent
For A11, tA11=0.5.If the rupture of canal wall comes off, channel shape is slightly damaged, and only deforms, and the situation of caving in does not occur,
Then open defect rank is 2, and defect scoring score value is 2 points；A is represented by12, tA12=0.5.If channel surface is seriously shelled
Fall, inwall occur serious situations such as crushing, come off, caving in, then open defect rank is 3, defect scoring score value is 5 points；I.e.
It is represented by A13, tA13=5.
Open defect can be expressed as A1j={ A11, A12, A13, open defect scoring score value can represent tA1j={ tA11,
tA12, tA13}={ 0.5,2,5 }.
(2) definition of arm housed joint (AJ)：Arm (Zhigou being connected with main pipe) except main pipe (important channel)
Directly laterally do not accessed in channel by inspection shaft.As long as in one pipeline a insertion pipeline b of here, then referred to as a is the arm of b
Housed joint.If the length that branch canal is entered in main channel is not more than the 10% of channel width, arm housed joint Level is 1,
Defect scoring score value is 0.5 point；A is represented by21, tA21=0.5.If the length that branch canal is entered in main channel is more than canal
The 10% of road width, then arm housed joint Level is 2, and defect scoring score value is 3 points；A is represented by22, tA22=3.
Arm housed joint defect can be expressed as A2j={ A21, A22, open defect scoring score value can represent tA2j={ tA21,
tA22}={ 0.5,3 }.
(3) foreign body penetrates the definition of (CR)：The object penetration channel of non-ancient building channel drainage system against rain affiliated facility
Inwall is entered in channel.Such as sewage conduct, power pipe, gas pipeline, feedwater piping, tree root etc. are penetrated.If foreign body is in canal
In road and take discharge section area and be not more than 10%, then foreign body penetrates defect rank for 1, and defect scoring score value is 0.5 point；I.e.
It is represented by A31, tA31=0.5.If foreign body is in channel and occupancy discharge section area is 10%～30%, foreign body is penetrated
Defect rank is 2, and defect scoring score value is 2 points, you can be expressed as A32, tA32=2.If foreign body in channel and took water
Cross-sectional area is more than 30%, and it is 3 that foreign body penetrates defect rank, and defect scoring score value is 5 points, you can be expressed as A33, tA33=5.
Foreign body penetrates defect and can be expressed as A3j={ A31, A32, A33, open defect scoring score value can represent tA3j=
{tA31, tA32, tA33}={ 0.5,2,5 }.
The definition of functional defect：Affect the defect (such as deposition, rubbish etc.) of ancient building channel drain function.Feature lacks
Falling into can be improved by conserving dredging.Functional defect can be expressed as Bij, wherein i represents that channel defect type, j are represented
Level in channel defect type；Structural defect scoring can be expressed as tAij, wherein tBij={ t1, t2, t3...,
tj}.
(1) definition of (CJ) is deposited：Impurity is in channel bottom sediment, such as silt etc..If thickness of deposits accounts for canal
The 5%～15% of road inner height, then deposition defect rank is 1, and defect scoring score value is 0.5 point；B is represented by11, tB11=
0.5.If thickness of deposits accounts for the 15%～25% of channel inner height, deposition defect rank is 2, and defect scoring score value is 2
Point；B is represented by12, tB12=2.If thickness of deposits account for channel inner height more than 25%, deposition defect rank be
3, defect scoring score value is 5 points；B is represented by13, tB13=5.
Deposition defect can be expressed as B1j={ B11, B12, B13, open defect scoring score value can represent tB1j={ tB11,
tB12, tB13}={ 0.5,2,5 }.
(2) definition of barrier (ZW)：The obstacle of excessively stream is affected in heritage buildings channel, such as accounts for certain cross-section of river
Long-pending stone etc..If cross-section of river loss is not more than 10% in channel, barrier defect rank is 1, defect scoring score value
0.1 point；B is represented by21, tB21=0.1.If cross-section of river loss 10%～30%, barrier defect rank in channel
For 2, defect scores 2 points of score value；B is represented by22, tB22=2.If in channel, cross-section of river loss is more than 30%, obstacle
Thing defect rank is 3, defect 5 points of score value of scoring；B is represented by23, tB23=5.
Barrier defect can be expressed as B2j={ B21, B22, B23, open defect scoring score value can represent tB2j=
{tB21, tB22, tB23}={ 0.1,2,5 }.
(3) definition of rubbish (LJ)：Floating thing on the water surface, such as leaveves, plastic bag etc. in heritage buildings channel.If fragmentary
Floating thing, account for channel inner horizontal area and be not more than 10%, then rubbish defect rank be 1, defect score 0.5 point of score value；I.e.
It is represented by B31, tB31=0.5.If more floating thing, the 10%～30% of channel inner horizontal area is accounted for, then rubbish lacks
Sunken grade is 2, defect 3 points of score value of scoring；B is represented by32, tB32=3.If substantial amounts of floating thing, channel inner horizontal is accounted for
Area is more than 30%, then rubbish defect rank is 3, defect 7 points of score value of scoring；B is represented by33, tB33=7.
Rubbish defect can be expressed as B3j={ B31, B32, B33, open defect scoring score value can represent tB3j={ tB31,
tB32, tB33}={ 0.5,3,7 }.
4th step, makes final scoring with statistics channel to the structural defect and functional defect of channel in survey region
All kinds of defect percentages.
(1) the final scoring T to ancient building channel pth root channel structureApRepresent, wherein
The final scoring T of channel functionsBpRepresent, whereinTAp, TBpChannel structure or feature
Final scoring；K0Uneven adjustment factor, represents the number of photos of unit channel length, whereinK0=0.133,
Unit/m；MAlwaysTotal number of photos of channel defect in survey region, unit, LAlwaysChannel total length in survey region,
Unit m；LpRefer to corresponding pth root channel length, unit m；∑tAij, Σ tBijRefer to all kinds of in pth root channel length
Defect score；npRefer to defect number on pth root channel；mpOften locate the number of photos of rejected region on corresponding pth root channel not
4, i.e. 0≤m≤4 are less than or equal to more than m.
Delimitation structural defect that survey region ancient building channel structure defect is finally scored is divided into Three Estate, respectively
Represented with I, II, III, structural defect parameter is represented with F, i.e., structural final scoring TA=F, when F≤1, represent channel without or
There are light defects, constructional aspect to be substantially unaffected, but with the potential possibility for degenerating, then structural defect grade is I；When 1<
F≤4, represent channel defect significantly more than one-level, and channel defect is serious, and constructional aspect is impacted, then structural defect grade is
Ⅱ；Work as F>4, represent that channel has significant deficiency, well damage will cause to destroy, then structural defect grade is III.
Delimitation functional defect that survey region ancient building channel functions defect is finally scored is divided into four grades, respectively
Represented with I, II, III, IV, functional defect parameter is represented with G, i.e., structural final scoring TB=G, when G≤5, indicate without or
Person has minimal effect, canal's moving to be substantially unaffected, then functional defect grade is I；When 5<G≤10, represent channel excessively stream
Have certain be obstructed, run impacted less, then can property defect rank be II；When 10<G≤24, represent that channel excessively stream is obstructed ratio
More serious, operation is significantly affected, then functional defect grade is III；Work as G>24, represent that very seriously, i.e., channel excessively stream is obstructed
Operation paralysis will be already led to or, then functional defect grade is IV.
(2) mapping analysis are used, ancient building important channel structural defect and functional defect in statistical study region
Middle all kinds defect channel number accounts for total channel number percentage ratio in whole region, and Research on Statistics and Analysis region weight respectively
Want each defect rank in channel structure defect and functional defect to account for whole defect channel number percentage ratio, complete ancient in region
The defect estimation of building channel.
According to the comprehensive estimation method of above-mentioned ancient building channel drainage system health status, channel defect is carried out according to standard
Classification, level evaluation and scoring, according to classification, level evaluation and appraisal result, dispose available manpower and material resources, execute corresponding statistics
Remedy, operation of renovating, the present invention can effectively improve the detection of China ancient building discharge conduit and the efficiency that evaluates, subtract in large quantities
Few ancient building channel drainage system cleaning amount, uses manpower and material resources sparingly, while the serious canal that has troubles effectively can be detected
Road defect, trouble-saving generation protect the integrity of heritage buildings structural stability and history relic, and ensure ancient building
The safe operation of channel drainage system, provides important suggestion for ancient building channel drainage system maintenance management from now on.
Compared with prior art, beneficial effects of the present invention：(1) to being managed using modern before ancient building channel defect estimation
Road Detection Techniques collect channel data (channel CAD diagram, the photo of robot shooting, image), and more adding system is comprehensively and truly touched
Understand the essential informations such as construction, the size of pipeline.(2) it is (structural scarce that systematic classification has been carried out to ancient building channel defect
Fall into and functional defect), while various defects have been carried out with detailed definition explanation, and channel defect level is commented
Point, determine defect rank, complete assessment is carried out to ancient building channel defect condition finally.For from now on to ancient building channel draining
System defect assessment provides reference frame.
Description of the drawings
Fig. 1. important channel/secondary channel schematic diagram；
In figure, A represents that important channel, a represent secondary channel；And there was only channel in figure, ignore ancient building region.
Fig. 2. all kinds of defect proportions in important channel
Fig. 3. important channel different brackets is structural/functional defect proportion；
Fig. 4. all kinds of defect proportions in secondary channel；
Fig. 5. secondary channel different brackets is structural/functional defect proportion.
Specific embodiment
A kind of ancient building channel drainage system health status proposed by the invention are comprehensively commented in conjunction with drawings and Examples
The method of estimating is further described, but the present invention is not limited to following examples.
Embodiment 1
A kind of ancient building channel drainage system Comprehensive Assessment of Health Status method of the present invention is mainly by ancient building channel sheet
Body defect estimation.
By taking Beijing ancient building region as an example；
Ancient building channel defect estimation itself mainly has the following steps to complete：1., in ancient building survey region, foundation is surveyed
Examine designing institute, using modern prospecting technique (photographing unit, pipe robot etc.), gained data (drawing, photo, shadow are surveyed to channel
As data etc.), it is therefore an objective to detailed grasp is carried out to information such as the structure of ancient building channel, size, channel bottom absolute altitude, defects
Understand.Its survey region drainage system against rain is divided into three kinds of bright ditch, cover plate ditch and covered conduit, according to irrigation canals and ditches survey region arrangement
Channel is divided into " important channel " and " secondary channel " by position and the size of sectional dimension：Important channel refer to sectional dimension compared with
Big covered conduit or cover plate ditch, the both sides of the road being often distributed in outside courtyard, the aproll of courtyard conflux
Go out survey region；Secondary channel form includes the less Zhigou of size in open channel and courtyard under courtyard and square corner, and with
The Zhigou that " important channel " is connected, its Main Function are that the aproll for guiding roofing to fall enters important channel.Important channel/time
Channel schematic diagram is wanted to see Fig. 1.
The technical scheme for this time adopting is a kind of comprehensive estimation method of ancient building channel drainage system health status.Mainly
Using following step：
The first step, early stage collection of data.In ancient building survey region, by modern detecting (such as photographing unit, hand-held
Video and closed-circuit television, small scale robot etc.) survey ancient building channel present situation data is collected (such as drawing, photo, image data
Deng).Every channel rejected region photo will be screened, and determine that every channel has defect at n, and require in every place's defect
Number of photos m at position less than 0 and is less than or equal to 4, i.e. 0≤m≤4.
Second step, for the data that survey region channel is collected, by ancient building channel defect be divided into structural defect and
Functional defect；Structural defect mainly includes that damaged (PS), arm housed joint (AJ), foreign body penetrate (CR) three types, structure
Property defect A represents, breakage A1Represent, arm housed joint A2Represent, foreign body is penetrated uses A3Represent, i.e. A={ A1, A2, A3}；Work(
Energy property defect mainly includes depositing (CJ), barrier (ZW), rubbish (LJ) three types, and functional defect is represented with B, and deposition is used
B1Represent, barrier B2Represent, rubbish B3Represent, i.e. B={ B1, B2, B3}.
3rd step, by being defined six kinds of defects of ancient building channel, defect system, and carries out beating to defect level
Point.
The definition of structural defect：(such as damaged, arm is dark for the defect of impact ancient building channel structure intensity and service life
Connect).Structural defect can be improved by maintenance.Structural defect can be expressed as Aij, wherein i represents channel defect
Type, j represent the Level in channel defect type；Structural defect scoring can be expressed as tAij, wherein tAij={ t1,
t2, t3..., tj}.
(4) definition of damaged (PS)：The external pressure of ancient building channel causes channel to become more than the holding capacity of itself
Shape, rupture and damage.Such as such as there is slight crack, breach, crushes, deforms, caving at the phenomenon in channel inwall.Main representation has vertical
To, ring and compound 3 kinds.If the visible slight crack of canal wall, obvious gap is formed, but the shape of channel is substantially unaffected, surface
There are the phenomenons such as male and fomale(M＆F) in light spalling, canal wall, then open defect rank is 1, and defect scoring score value is 0.5 point；Can represent
For A11, tA11=0.5.If the rupture of canal wall comes off, channel shape is slightly damaged, and only deforms, and the situation of caving in does not occur,
Then open defect rank is 2, and defect scoring score value is 2 points；A is represented by12, tA12=0.5.If channel surface is seriously shelled
Fall, inwall occur serious situations such as crushing, come off, caving in, then open defect rank is 3, defect scoring score value is 5 points；I.e.
It is represented by A13, tA13=5.
Open defect can be expressed as A1j={ A11, A12, A13, open defect scoring score value can represent tA1j={ tA11,
tA12, tA13}={ 0.5,2,5 }.
(5) definition of arm housed joint (AJ)：Arm (Zhigou being connected with main pipe) except main pipe (important channel)
Directly laterally do not accessed in channel by inspection shaft.As long as in one pipeline a insertion pipeline b of here, then referred to as a is the arm of b
Housed joint.If the length that branch canal is entered in main channel is not more than the 10% of channel width, arm housed joint Level is 1,
Defect scoring score value is 0.5 point；A is represented by21, tA21=0.5.If the length that branch canal is entered in main channel is more than canal
The 10% of road width, then arm housed joint Level is 2, and defect scoring score value is 3 points；A is represented by22, tA22=3.
Arm housed joint defect can be expressed as A2j={ A21, A22, open defect scoring score value can represent tA2j={ tA21,
tA22}={ 0.5,3 }.
(6) foreign body penetrates the definition of (CR)：The object penetration channel of non-ancient building channel drainage system against rain affiliated facility
Inwall is entered in channel.Such as sewage conduct, power pipe, gas pipeline, feedwater piping, tree root etc. are penetrated.If foreign body is in canal
In road and take discharge section area and be not more than 10%, then foreign body penetrates defect rank for 1, and defect scoring score value is 0.5 point；I.e.
It is represented by A31, tA31=0.5.If foreign body is in channel and occupancy discharge section area is 10%～30%, foreign body is penetrated
Defect rank is 2, and defect scoring score value is 2 points, you can be expressed as A32, tA32=2.If foreign body in channel and took water
Cross-sectional area is more than 30%, and it is 3 that foreign body penetrates defect rank, and defect scoring score value is 5 points, you can be expressed as A33, tA33=5.
Foreign body penetrates defect and can be expressed as A3j={ A31, A32, A33, open defect scoring score value can represent tA3j=
{tA31, tA32, tA33}={ 0.5,2,5 }.
The definition of functional defect：Affect the defect (such as deposition, rubbish etc.) of ancient building channel drain function.Feature lacks
Falling into can be improved by conserving dredging.Functional defect can be expressed as Bij, wherein i represents that channel defect type, j are represented
Level in channel defect type；Structural defect scoring can be expressed as tAij, wherein tBij={ t1, t2, t3...,
tj}.
(2) definition of (CJ) is deposited：Impurity is in channel bottom sediment.Such as silt etc..If thickness of deposits accounts for canal
The 5%～15% of road inner height, then deposition defect rank is 1, and defect scoring score value is 0.5 point；B is represented by11, tB11=
0.5.If thickness of deposits accounts for the 15%～25% of channel inner height, deposition defect rank is 2, and defect scoring score value is 2
Point；B is represented by12, tB12=2.If thickness of deposits account for channel inner height more than 25%, deposition defect rank be
3, defect scoring score value is 5 points；B is represented by13, tB13=5.
Deposition defect can be expressed as B1j={ B11, B12, B13, open defect scoring score value can represent tB1j={ tB11,
tB12, tB13}={ 0.5,2,5 }.
(2) definition of barrier (ZW)：The obstacle of excessively stream is affected in heritage buildings channel.The certain cross-section of river is such as accounted for
Long-pending stone etc..If cross-section of river loss is not more than 10% in channel, barrier defect rank is 1, defect scoring score value
0.1 point；B is represented by21, tB21=0.1.If cross-section of river loss 10%～30%, barrier defect rank in channel
For 2, defect scores 2 points of score value；B is represented by22, tB22=2.If in channel, cross-section of river loss is more than 30%, obstacle
Thing defect rank is 3, defect 5 points of score value of scoring；B is represented by23, tB23=5.
Barrier defect can be expressed as B2j={ B21, B22, B23, open defect scoring score value can represent tB2j=
{tB21, tB22, tB23}={ 0.1,2,5 }.
(3) definition of rubbish (LJ)：Floating thing on the water surface in heritage buildings channel.Such as leaveves, plastic bag etc..4th step,
The entirety of every ancient building channel structure defect and functional defect is scored.If fragmentary floating thing, accounts for channel
Inner horizontal area is not more than 10%, then rubbish defect rank is 1, defect 0.5 point of score value of scoring；B is represented by31, tB31=
0.5.If more floating thing, the 10%～30% of channel inner horizontal area is accounted for, then rubbish defect rank is 2, and defect is commented
Divide 3 points of score value；B is represented by32, tB32=3.If substantial amounts of floating thing, channel inner horizontal area is accounted for more than 30%, then
Rubbish defect rank is 3, defect 7 points of score value of scoring；B is represented by33, tB33=7.
Rubbish defect can be expressed as B3j={ B31, B32, B33, open defect scoring score value can represent tB3j={ tB31,
tB32, tB33}={ 0.5,3,7 }.
Structural defect refers to table 1. with functional defect explanation
1. liang of class defect explanations of table
4th step, makes final scoring with statistics channel to the structural defect and functional defect of channel in survey region
All kinds of defect percentages.
(1) the final scoring T to ancient building channel pth root channel structureApRepresent, wherein
The final scoring T of channel functionsBpRepresent, whereinTAp, TBpChannel structure or feature
Final scoring；K0Uneven adjustment factor, represents the number of photos of unit channel length, whereinK0=0.133,
Unit/m；MAlwaysTotal number of photos of channel defect in survey region, unit, LAlwaysChannel total length in survey region,
Unit m；LpRefer to corresponding pth root channel length, unit m；ΣtAij, Σ tBijRefer to all kinds of in pth root channel length
Defect score；npRefer to defect number on pth root channel；mpOften locate the number of photos of rejected region on corresponding pth root channel not
4, i.e. 0≤m≤4 are less than or equal to more than m.
Delimitation structural defect that survey region ancient building channel structure defect is finally scored is divided into Three Estate, respectively
Represented with I, II, III, structural defect parameter is represented with F, i.e., structural final scoring TA=F, when F≤1, represent channel without or
There are light defects, constructional aspect to be substantially unaffected, but with the potential possibility for degenerating, then structural defect grade is I；When 1<
F≤4, represent channel defect significantly more than one-level, and channel defect is serious, and constructional aspect is impacted, then structural defect grade is
Ⅱ；Work as F>4, represent that channel has significant deficiency, well damage will cause to destroy, then structural defect grade is III.
Delimitation functional defect that survey region ancient building channel functions defect is finally scored is divided into four grades, respectively
Represented with I, II, III, IV, functional defect parameter is represented with G, i.e., structural final scoring TB=G, when G≤5, indicate without or
Person has minimal effect, canal's moving to be substantially unaffected, then functional defect grade is I；When 5<G≤10, represent channel excessively stream
Have certain be obstructed, run impacted less, then can property defect rank be II；When 10<G≤24, represent that channel excessively stream is obstructed ratio
More serious, operation is significantly affected, then functional defect grade is III；Work as G>24, represent that very seriously, i.e., channel excessively stream is obstructed
Operation paralysis will be already led to or, then functional defect grade is IV.
Channel structure defect is evaluated referring to table 2 and table 3 with functional defect defect rank.
2. channel structure defective ranking synopsis of table
| Defect rank | Defect parameters (F) | Deterioration extent is described |
| Ⅰ | F≤1 | Nothing has light defects, constructional aspect to be substantially unaffected, but with the potential possibility for degenerating |
| Ⅱ | 1<F≤4 | , significantly more than one-level, channel defect is serious, and constructional aspect is impacted for channel defect |
| Ⅲ | F>4 | There is significant deficiency in channel, well damage will cause to destroy |
3. channel functions defective ranking synopsis of table
| Defect rank | Defect parameters (G) | Deterioration extent is described |
| Ⅰ | G≤5 | Nothing has minimal effect, canal's moving to be substantially unaffected |
| Ⅱ | 5<G≤10 | Channel excessively stream have certain be obstructed, run impacted less |
| Ⅲ | 10<G≤24 | Channel excessively stream is obstructed than more serious, and operation is significantly affected |
| Ⅳ | G>24 | Channel excessively stream is obstructed very seriously, or will already lead to operation paralysis |
(2) mapping analysis are used, ancient building important channel structural defect and functional defect in statistical study region
Middle all kinds defect channel number accounts for total channel number percentage ratio in whole region, and Research on Statistics and Analysis region weight respectively
Want each defect rank in channel structure defect and functional defect to account for whole defect channel number percentage ratio, complete ancient in region
The defect estimation of building channel.
All kinds of defects are obtained after all kinds of defect statistics score values that reconnoitres in important channel as shown in Figure 2 in proportion；
The grade statistical result accounting of all important channel structural defects and functional defect is as shown in Figure 3.Equally, in secondary channel
All kinds of defects are obtained after all kinds of defect statistics score values that reconnoitres as shown in Figure 4 in proportion；All secondary channels are structural
The grade statistical result accounting of defect and functional defect is as shown in Figure 5.
According to the comprehensive estimation method of above-mentioned ancient building channel drainage system health status, channel defect is carried out according to standard
Classification, level evaluation and scoring, according to classification, level evaluation and appraisal result, execute corresponding statistics and analysis operation, further according to
The statistical analysiss of Fig. 2, Fig. 3, Fig. 4 and Fig. 5, can effectively improve China's ancient building discharge conduit detection and the efficiency that evaluates,
Reduce ancient building channel drainage system cleaning amount in large quantities, use manpower and material resources sparingly, have troubles while effectively can detect
Serious channel defect, trouble-saving generation protect the integrity of heritage buildings structural stability and history relic, and protect
The safe operation of barrier ancient building channel drainage system, provides for ancient building channel drainage system maintenance management from now on important
Suggestion.
Claims (4)
1. a kind of comprehensive estimation method of ancient building channel drainage system health status, it is characterised in that mainly using following several
Individual step：
The first step, early stage collection of data.In ancient building survey region, by modern detecting；Ancient building canal is collected in exploration
Road present situation data；Every channel rejected region photo will be screened, and determine that defect often located by every channel, and require every
Number of photos m of place's rejected region, m are less than or equal to 4, i.e. 0≤m≤4；
Ancient building channel defect, for the data that survey region channel is collected, is divided into structural defect and function by second step
Property defect；Structural defect mainly includes that damaged (PS), arm housed joint (AJ), foreign body penetrate (CR) three types, structural scarce
Fall into and represented with A, breakage A1Represent, arm housed joint A2Represent, foreign body is penetrated uses A3Represent, i.e. A={ A1, A2, A3}；Feature
Defect mainly includes depositing (CJ), barrier (ZW), rubbish (LJ) three types, and functional defect is represented with B, and deposition uses B1Table
Show, barrier B2Represent, rubbish B3Represent, i.e. B={ B1, B2, B3}；
3rd step, by being defined to six kinds of defects of ancient building channel, defect system, and gives a mark to defect level；
The definition of structural defect：Affect ancient building channel structure intensity and service life defect (as breakage, arm housed joint,
Foreign body is penetrated).Structural defect can be improved by maintenance.Structural defect can be expressed as Aij, wherein i represents channel
Defect type, j represent the Level in channel defect type；Structural defect scoring can be expressed as tAij, wherein tAij=
{t1, t2, t3..., tj}；
(1) definition of damaged (PS)：The external pressure of ancient building channel causes channel to deform, breaks more than the holding capacity of itself
Split and damage；；Main representation has longitudinal direction, ring and is combined 3 kinds；If the visible slight crack of canal wall, obvious gap, but canal is formed
The shape in road is substantially unaffected, and the phenomenons such as male and fomale(M＆F) occur in surface light spalling, canal wall, then open defect rank is 1, defect
Scoring score value is 0.5 point；A is represented by11, tA11=0.5；If the rupture of canal wall comes off, channel shape is slightly damaged, and only sends out
Change shape, the situation of caving in does not occur, then open defect rank is 2, and defect scoring score value is 2 points；A is represented by12, tA12
=0.5.If channel surface is seriously peeled off, there is serious situations such as crushing, come off, caving in, then open defect rank in inwall
For 3, defect scoring score value is 5 points；A is represented by13, tA13=5；
Open defect can be expressed as A1j={ A11, A12, A13, open defect scoring score value can represent tA1j={ tA11, tA12,
tA13}={ 0.5,2,5 }；
(2) definition of arm housed joint (AJ)：The arm of main pipe is not directly laterally accessed in channel by inspection shaft；As long as here
In one pipeline a insertion pipeline b, then arm housed joints of the referred to as a for b；If the length that branch canal is entered in main channel is not more than
The 10% of channel width, then arm housed joint Level is 1, and defect scoring score value is 0.5 point；A is represented by21, tA21=
0.5；If the length that branch canal is entered in main channel more than channel width 10%, arm housed joint Level are 2, defect
Scoring score value is 3 points；A is represented by22, tA22=3；
Arm housed joint defect can be expressed as A2j={ A21, A22, open defect scoring score value can represent tA2j={ tA21, tA22}
={ 0.5,3 }；
(3) foreign body penetrates the definition of (CR)：The object penetration channel inwall of non-ancient building channel drainage system against rain affiliated facility
Enter in channel；If foreign body is in channel and occupancy discharge section area is not more than 10%, foreign body penetrates defect rank and is
1, defect scoring score value is 0.5 point；A is represented by31, tA31=0.5；If foreign body in channel and takes cross-section of river face
Product is 10%～30%, then it is 2 that foreign body penetrates defect rank, and defect scoring score value is 2 points, you can be expressed as A32, tA32=2；Such as
Fruit foreign body in channel and takes discharge section area more than 30%, and it is 3 that foreign body penetrates defect rank, and defect scoring score value is 5
Point, you can it is expressed as A33, tA33=5；
Foreign body penetrates defect and can be expressed as A3j={ A31, A32, A33, open defect scoring score value can represent tA3j={ tA31,
tA32, tA33}={ 0.5,2,5 }；
The definition of functional defect：Affect the defect of ancient building channel drain function；Functional defect can be expressed as Bij, wherein
I represents that channel defect type, j represent the Level in channel defect type；Structural defect scoring can be expressed as tAij,
Wherein tBij={ t1, t2, t3..., tj}；
(1) definition of (CJ) is deposited：Impurity is in channel bottom sediment；If thickness of deposits accounts for the 5% of channel inner height
～15%, then deposition defect rank is 1, and defect scoring score value is 0.5 point, you can be expressed as B11, tB11=0.5；If deposit
Thickness accounts for the 15%～25% of channel inner height, then deposition defect rank is 2, and defect scoring score value is 2 points, you can be expressed as
B12, tB12=2；If thickness of deposits account for channel inner height more than 25%, deposition defect rank be 3, defect score score value
For 5 points；B is represented by13, tB13=5；
Deposition defect can be expressed as B1j={ B11, B12, B13, open defect scoring score value can represent tB1j={ tB11, tB12,
tB13}={ 0.5,2,5 }；
(2) definition of barrier (ZW)：The obstacle of excessively stream is affected in heritage buildings channel, if the cross-section of river is damaged in channel
Lose and be not more than 10%, then barrier defect rank is 1, defect 0.1 point of score value of scoring；B is represented by21, tB21=0.1；If
Cross-section of river loss 10%～30% in channel, then barrier defect rank is 2, defect 2 points of score value of scoring, you can be expressed as
B22, tB22=2；If cross-section of river loss is more than 30% in channel, barrier defect rank is 3, defect 5 points of score value of scoring,
B is represented by23, tB23=5；
Barrier defect can be expressed as B2j={ B21, B22, B23, open defect scoring score value can represent tB2j={ tB21,
tB22, tB23}={ 0.1,2,5 }；
(3) definition of rubbish (LJ)：Floating thing on the water surface in heritage buildings channel；If fragmentary floating thing, water in channel is accounted for
The area of plane is not more than 10%, then rubbish defect rank is 1, defect 0.5 point of score value of scoring, you can be expressed as B31, tB31=0.5；
If more floating thing, the 10%～30% of channel inner horizontal area is accounted for, then rubbish defect rank is 2, defect scoring point
3 points of value, you can be expressed as B32, tB32=3；If substantial amounts of floating thing, channel inner horizontal area is accounted for more than 30%, then rubbish
Defect rank is 3, defect 7 points of score value of scoring, you can be expressed as B33, tB33=7；
Rubbish defect can be expressed as B3j={ B31, B32, B33, open defect scoring score value can represent tB3j={ tB31, tB32,
tB33}={ 0.5,3,7 }；
4th step, makes final scoring all kinds of with statistics channel to the structural defect and functional defect of channel in survey region
Defect percentage；
(1) the final scoring T to ancient building channel pth root channel structureApRepresent, whereinChannel
Functional final scoring TBpRepresent, whereinTAp, TBpChannel structure or feature are final
Scoring；K0Uneven adjustment factor, represents the number of photos of unit channel length, whereinK0=0.133, unit
/ m；MAlwaysTotal number of photos of channel defect in survey region, unit, LAlwaysChannel total length in survey region, unit
m；LpRefer to corresponding pth root channel length, unit m；∑tAij, ∑ tBijRefer to all kinds of defects in pth root channel length
Score；npRefer to defect number on pth root channel；mpThe number of photos for often locating rejected region on corresponding pth root channel is less than
M is less than or equal to 4, i.e. 0≤m≤4；
Delimitation structural defect that survey region ancient building channel structure defect is finally scored is divided into Three Estate, respectively with I,
IIth, III represent, structural defect parameter is represented with F, i.e., structural final scoring TA=F, when F≤1, represent channel without or have light
Microdefect, constructional aspect are substantially unaffected, but with the potential possibility for degenerating, then structural defect grade is I；When 1<F≤
4, channel defect is represented significantly more than one-level, channel defect is serious, and constructional aspect is impacted, then structural defect grade is II；
Work as F>4, represent that channel has significant deficiency, well damage will cause to destroy, then structural defect grade is III；
Delimitation functional defect that survey region ancient building channel functions defect is finally scored is divided into four grades, respectively with I,
IIth, III, IV represents, functional defect parameter is represented with G, i.e., structural final scoring TB=G, when G≤5, indicates without or has
Minimal effect, canal's moving are substantially unaffected, then functional defect grade is I；When 5<G≤10, represent that channel excessively stream has one
Fixed is obstructed, run impacted less, then can property defect rank be II；When 10<G≤24, represent that the comparison of being obstructed of channel excessively stream is tight
Weight, operation are significantly affected, then functional defect grade is III；Work as G>24, represent that channel excessively stream is obstructed very seriously, Ji Jianghuo
Person already leads to operation paralysis, then functional defect grade is IV；
(2) mapping analysis are used, each in ancient building important channel structural defect and functional defect in statistical study region
Type defect channel number accounts for total channel number percentage ratio in whole region, and the important canal in Research on Statistics and Analysis region respectively
In road structural defect and functional defect, each defect rank accounts for whole defect channel number percentage ratio, completes ancient building in region
The defect estimation of channel.
2. according to a kind of comprehensive estimation method of the ancient building channel drainage system health status described in claim 1, its feature
It is, modern detecting is selected from photographing unit, handheld video, closed-circuit television, robot.
3. according to a kind of comprehensive estimation method of the ancient building channel drainage system health status described in claim 1, its feature
It is, ancient building channel present situation data includes drawing, photo, image data.
4. according to a kind of comprehensive estimation method of the ancient building channel drainage system health status described in claim 1, its feature
It is, further, according to classification, level evaluation and appraisal result, disposes available manpower and material resources, execute remedying, repairing for corresponding statistics
Cover a roof with straw operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610964014.4A CN106504126A (en) | 2016-10-28 | 2016-10-28 | A kind of comprehensive estimation method of ancient building channel drainage system health status |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610964014.4A CN106504126A (en) | 2016-10-28 | 2016-10-28 | A kind of comprehensive estimation method of ancient building channel drainage system health status |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106504126A true CN106504126A (en) | 2017-03-15 |
Family
ID=58321644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610964014.4A Pending CN106504126A (en) | 2016-10-28 | 2016-10-28 | A kind of comprehensive estimation method of ancient building channel drainage system health status |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106504126A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108764641A (en) * | 2018-04-27 | 2018-11-06 | 中国石油天然气股份有限公司 | Oil-gas pipeline body and welding seam defect risk evaluation method |
| CN109063951A (en) * | 2018-06-13 | 2018-12-21 | 水利部交通运输部国家能源局南京水利科学研究院 | Cold area's canal for water conveyance freeze injury methods of safety quantitative evaluation |
| CN109959664A (en) * | 2019-04-10 | 2019-07-02 | 长春禹衡光学有限公司 | Contamination detection method, device and the readable storage medium storing program for executing of absolute grating ruler |
| CN112508444A (en) * | 2020-12-18 | 2021-03-16 | 南京北控工程检测咨询有限公司 | Municipal drainage pipeline assessment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426137A (en) * | 2013-07-16 | 2013-12-04 | 清华大学 | Method for quantitatively and comprehensively assessing defects of drainage pipelines |
| CN105023118A (en) * | 2015-08-19 | 2015-11-04 | 湖南大麓管道工程有限公司 | Method and system for managing drainage pipe detection data and assessment result data |
| CN106372328A (en) * | 2016-08-31 | 2017-02-01 | 广州市市政集团有限公司 | Drainage pipeline repair method and system based on drainage ability evaluation |
-
2016
- 2016-10-28 CN CN201610964014.4A patent/CN106504126A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426137A (en) * | 2013-07-16 | 2013-12-04 | 清华大学 | Method for quantitatively and comprehensively assessing defects of drainage pipelines |
| CN105023118A (en) * | 2015-08-19 | 2015-11-04 | 湖南大麓管道工程有限公司 | Method and system for managing drainage pipe detection data and assessment result data |
| CN106372328A (en) * | 2016-08-31 | 2017-02-01 | 广州市市政集团有限公司 | Drainage pipeline repair method and system based on drainage ability evaluation |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108764641A (en) * | 2018-04-27 | 2018-11-06 | 中国石油天然气股份有限公司 | Oil-gas pipeline body and welding seam defect risk evaluation method |
| CN108764641B (en) * | 2018-04-27 | 2020-12-01 | 中国石油天然气股份有限公司 | Oil-gas pipeline body and welding seam defect risk evaluation method |
| CN109063951A (en) * | 2018-06-13 | 2018-12-21 | 水利部交通运输部国家能源局南京水利科学研究院 | Cold area's canal for water conveyance freeze injury methods of safety quantitative evaluation |
| CN109959664A (en) * | 2019-04-10 | 2019-07-02 | 长春禹衡光学有限公司 | Contamination detection method, device and the readable storage medium storing program for executing of absolute grating ruler |
| CN112508444A (en) * | 2020-12-18 | 2021-03-16 | 南京北控工程检测咨询有限公司 | Municipal drainage pipeline assessment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106504126A (en) | A kind of comprehensive estimation method of ancient building channel drainage system health status | |
| CN103426137B (en) | A kind of drainage pipeline defect quantitative comprehensive estimation method | |
| CN107989151A (en) | A kind of region rainwater catchment system engineering system and concocting method | |
| CN112036734B (en) | Tunnel main body structure health state evaluation and maintenance strategy determination method | |
| CN104281920A (en) | Tailing pond layered index safety assessment and early-warning method and system | |
| CN106836285A (en) | One kind guards waterproof construction based on architecture information underground pipe gallery | |
| CN211621640U (en) | Well water circulating system of foundation pit dewatering well | |
| CN106204319A (en) | Risk assessment method and device for ground equipment of gas storage | |
| CN106779232A (en) | A kind of modeling and forecasting method of urban waterlogging | |
| CN110793574A (en) | Drainage pipe network monitoring system | |
| CN111784212A (en) | Flood control risk identification and evaluation method for water diversion project | |
| CN107085658A (en) | A kind of mountain flood time of causing disaster determines method | |
| CN113763363A (en) | Drainage pipeline fracture defect detection and grade evaluation method | |
| CN110865592A (en) | Tailing pond seepage monitoring system and comprehensive early warning method thereof | |
| CN115438918A (en) | Method for evaluating ecological restoration effect of surface mine | |
| CN103530516A (en) | Meizoseismal area debris flow hidden risk point quick recognizing method | |
| CN112668634B (en) | Underground pipe network automatic identification and detection cloud system based on deep learning | |
| CN206987019U (en) | A kind of rainwater inspection well for municipal roads | |
| CN112651139B (en) | Reservoir dam technical condition assessment method | |
| CN208183777U (en) | A kind of base pit dewatering system | |
| CN203546880U (en) | Novel rainwater precipitating filtering vertical well | |
| Wu et al. | Assessment model of dam operation risk based on monitoring data | |
| CN100480470C (en) | Soft foundation processing method for rapidly eliminating differential settlement | |
| Gan et al. | Comprehensive health condition assessment on partial sewers in a southern Chinese city based on fuzzy mathematic methods | |
| Jun | The Detection, Evaluation, and Repair Technology Application of Drainage Pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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: 20170315 |