CN109113092A - Construction method is protected in underground large-diameter pipeline original position water flowing - Google Patents
Construction method is protected in underground large-diameter pipeline original position water flowing Download PDFInfo
- Publication number
- CN109113092A CN109113092A CN201810764318.5A CN201810764318A CN109113092A CN 109113092 A CN109113092 A CN 109113092A CN 201810764318 A CN201810764318 A CN 201810764318A CN 109113092 A CN109113092 A CN 109113092A
- Authority
- CN
- China
- Prior art keywords
- former water
- construction
- service pipe
- water service
- water flowing
- 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
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
Abstract
The present invention relates to a kind of underground large-diameter pipeline water flowing in-situ conservation construction method, it the steps include: 1) to carry out physical prospecting to former water service pipe and excavate sample ditch to determine precise plane position and the absolute altitude of former water service pipe；2) construction fender post, crosses newly-built underground activities well construction in conjunction with former water service pipe, forms " riding " formula with building enclosure；3) the peripheral water-stop curtain outside long stake is gone along with sb. to guard him in construction, for the import and export across former water service pipe, it is ensured that the peripheral containment and sealing of building enclosure；4) construction collar tie beam and purlin；5) it in former water flowing bottom of the tube vertically and horizontally hand excavation's well word concealed beam groove, and is allowed to connect with newly-built bottom plate using effective reinforcement attachment beam lattice, stringer, transverse beam in old bed course, pour integral to jacking support original water service pipe；6) it after newly-built bottom plate curing strength reaches, returns and builds work well construction, the backfill after strength of roof reaches.The present invention goes along with sb. to guard him form using what fender post and MJS engineering method stake combined, forms closing and goes along with sb. to guard him sealing.
Description
Technical field
The present invention relates to a kind of underground large-diameter pipeline water flowing in-situ conservation construction method, more particularly to one kind are logical in pipeline
Water does not stop, and keeps carrying out periphery underground structure construction method under normal operating conditions.
Background technique
With urban development, underground piping drainage system has been gradually improved, but face Flood Control in Certain Area water drainage ability it is limited,
Urban pipe network scale is not able to satisfy the problems such as current demand.Water conservancy water utilities system engineering construction is high by the construction for welcoming a new round
Tide.The direction that urban duct is also big towards diameter, buried depth is big is developed, and large-scale investment causes hydraulic engineering construction will with planning
More challenges and problem are faced, this also requires construction of hydro project technology to constantly bring forth new ideas.
In underground engineering construction, all kinds of underground pipings can be encountered, resettlement or suspension protection measure in situ is usually taken, it is existing
In pipeline original position, suspension protection technology tends to be mature primarily directed to flexible pipe line (such as information, electric power) and small-bore (usual D
< 600mm), due to the admissible deflection of flexible pipe line and small-bore pipeline self weight it is lighter, can by reinforce suspension member into
The construction of row in-situ conservation.
And be transformed and mention in mark construction project in water conservancy water utilities underground pipe network, before new pipe network well system does not complete, lead to
Often require old pipe network system that need to guarantee the normal operation not stopped.When need to be with old pipe network general pipeline connection construction, due to old pipe network
The usual major diameter of general pipeline (D >=1000mm), and buried depth of pipeline is deeper, self weight of pipeline is larger, and current cutting protection is not applied for the original position of pipeline
Work difficulty and risk are big.Suspension protection measure in situ also can not almost be implemented.For large diameter pipeline in-situ conservation, how to accomplish
The connection for realization the old and new's pipe well that pipeline does not stop, it is ensured that the operational safety of pipeline is a difficulty urgently to be resolved in work progress
Topic.
Summary of the invention
The present invention is to provide for a kind of underground large-diameter pipeline water flowing in-situ conservation construction method, crosses for water pipe
Newly-built underground activities well construction forms " riding " formula with building enclosure, and reinforces using the stake of MJS engineering method to its periphery and in cheating,
The complete closure of safeguard work well water-stop curtain, while increasing lower support of the beam lattice as in-service pipeline in duct bottom,
Ensure the construction method of do not stop operation and the safety of construction of working shaft process piping.
To achieve the above object, the technical scheme is that a kind of underground large-diameter pipeline water flowing in-situ conservation is constructed
Method the steps include:
1) before construction working well is gone along with sb. to guard him, physical prospecting first is carried out with sample ditch is excavated to determine the accurate of former water service pipe to former water service pipe
Plan-position and absolute altitude；
2) construction fender post, crosses newly-built underground activities well construction in conjunction with former water service pipe, forms " riding " with building enclosure
Formula, fender post use long fender post A and short fender post, are accurately positioned the stake bottom for controlling short fender post at the excessively former water service pipe of fender post
The former water flowing 200~300mm of tube top of distance, while guaranteeing that long fender post A is close to former water flowing tube edges, in case neutral gear gap is too big；
3) the peripheral water-stop curtain outside long stake is gone along with sb. to guard him in construction, for the import and export across former water service pipe, it is ensured that go along with sb. to guard him knot
The peripheral containment and sealing of structure；
4) construct collar tie beam and purlin, excavate lower layer cubic metre of earth after per pass purlin curing strength reaches from top to bottom, successively into
Row purlin, earth excavation construction, mechanical excavation is to 200~300mm of former water flowing tube top is arrived, to protect former water service pipe, former water service pipe
The lower earthwork is carried out using hand excavation's mode, until being excavated to substrate pours bed course；
5) in former water flowing bottom of the tube vertically and horizontally hand excavation's well word concealed beam groove, and effective reinforcement attachment beam is used in old bed course
Lattice, stringer, transverse beam are allowed to connect with newly-built bottom plate, pour integral to the former water service pipe of jacking support；
6) it after newly-built bottom plate curing strength reaches, returns and builds work well construction, it is strong to the top plate to the subsequent structure well done
Degree reaches rear backfill.
When cheating beneath compacted soil Lack of support, it is not enough to support top large-diameter pipeline load or hole bottom and bottom plate in pipe
Under bottom and when emptying gap, with anchoring pile support beam in length and breadth, and anchoring pile with construct fender post when construct together.
Described major diameter MJS stake diameters: R1=D/2+L0+ h, wherein D is former water flowing pipe diameter, L0It overlaps and grows for MJS
Degree, taking >=200mm, h is that MJS drills to former water service pipe back gauge, and distance controlling is 100~200mm.
It carries out hole bottom using major diameter MJS to reinforce, reinforcement depth is controlled in >=3m.
The beneficial effects of the present invention are: the present invention is a kind of safely and effectively construction method, using fender post and MJS engineering method
What stake combined goes along with sb. to guard him form, forms closing and goes along with sb. to guard him sealing.It is directed to large-diameter pipeline water flowing simultaneously from great, construction of working shaft sky
Between it is small cannot use suspension protection, increase beam lattice in the old bed course of duct bottom and be used as lower part jacking supporting form, thus arrival pair
Protection to major diameter water pipe, so that active well underground structure normal construction.
Detailed description of the invention
Fig. 1 is pipe protection plan view；
Fig. 2 is the A-A diagrammatic cross-section based on Fig. 1；
Fig. 3 is the B-B diagrammatic cross-section based on Fig. 1；
Fig. 4 is the C-C diagrammatic cross-section based on Fig. 1；
Fig. 5 is the D-D diagrammatic cross-section based on Fig. 1；
Fig. 6 is the cross-sectional view after the construction of underground large-diameter pipeline water flowing in-situ conservation.
Specific embodiment
With reference to the accompanying drawing with specific implementation, the present invention is further explained.
As shown in Fig. 1~Fig. 6, a kind of underground large-diameter pipeline water flowing in-situ conservation construction method:
1) across the active well containment system of existing water pipe, newly-built underground activities well knot is crossed in conjunction with former water service pipe 1
Structure forms " riding " formula with building enclosure.Mainly including fender post 3 short at long fender post A2, piping, (expansion such as Fig. 5), encloses
Fender pile periphery water-stop curtain 4 (high-pressure rotary jet grouting pile is generallyd use as water-stop curtain outside it as going along with sb. to guard him using drilled pile) and knot
The purlin 5 that reasonable road number is arranged in active well cutting depth is closed, most lower one of purlin 5 is being protected above former water service pipe 1；
2) ensure the peripheral water sealing consolidation system at existing large-diameter pipeline, due at existing large-diameter pipeline
Former water service pipe 1 cannot be destroyed, fender post can only be set to former water service pipe 1 using short fender post B3 push up here, to ensure to go along with sb. to guard him
The peripheral containment and sealing of structure set 6 peripheral containment sealing of major diameter MJS stake in former water service pipe 1 disengaging fender post periphery and add
Gu at least 1 times of the caliber range (expansion as Fig. 4) up and down of outsourcing original water service pipe 1 is controlled, since MJS pile stake diameter is larger
At present maximum diameter of pile up to 4.5m and work progress be able to achieve ground pressure balance on surrounding enviroment influence it is small, to large-diameter pipeline
(D1m~D4.2m) can form outsourcing closing.
3) to support major diameter to run the lower tray support system of pipeline, bottom is mainly cheated by major diameter MJS stake 6 and is added
Gu the former old bed course 8 in 1 bottom of water service pipe is allowed to connect with newly-built bottom plate 12 using effective reinforcement attachment beam lattice 10, stringer 9, transverse beam 11
It is whole to support former water service pipe 1,, can be if necessary in when consolidated subsoil bearing capacity cannot be met the requirements if hole bottom geology is poor
Anchoring pile 13 is added under vertical crossbeam frame.
Specific implementation method and step:
1) before construction working well is gone along with sb. to guard him, physical prospecting first is carried out to former water service pipe 1 and excavates sample ditch to determine the essence of former water service pipe 1
True plan-position and absolute altitude.
2) construction fender post, crosses newly-built underground activities well construction in conjunction with former water service pipe 1, forms " riding " with building enclosure
Formula.Mainly include long fender post A2, at piping short fender post 3 accurately determine location control stub stake bottom apart from tube top about 200~
300mm (plan view such as Fig. 1, expansion such as Fig. 5), while guaranteeing that long fender post A2 is close to 1 edge of former water service pipe as far as possible, in order to avoid neutral gear
Gap is too big.When anchoring pile 13 (optionally) need to be added by cheating bottom, anchoring pile 13 is also constructed in this stage together.
When cheating beneath compacted soil Lack of support, it is not enough to support top large-diameter pipeline load or hole bottom and bottom plate in pipe
Under bottom and when emptying gap, beam in length and breadth need to be supported with anchoring pile 13.
3) the peripheral water-stop curtain 4 outside long stake 2 is gone along with sb. to guard him in construction, big straight for setting across the import and export of former water service pipe 1
6 peripheral containment water sealing consolidation of diameter MJS stake (plan view such as Fig. 1, expansion such as Fig. 4) MJS diameters of control: R1=D/2+L0+ h (wherein D
For former 1 diameter of water service pipe, L0For the MJS lap of splice it is general >=200mm, h is that 1 back gauge of MJS hole spacing original water service pipe is general
Control is 100~200mm).Ensure the peripheral containment and sealing of building enclosure.Hole bottom also uses major diameter MJS stake 6 to carry out hole bottom
It reinforces, reinforcement depth general control >=3m.
4) construct collar tie beam and purlin 5, excavate lower layer cubic metre of earth after per pass purlin curing strength reaches from top to bottom, successively into
Row purlin, earth excavation construction, mechanical excavation push up 200~300mm to former water service pipe 1 is arrived, should for protection major diameter original water service pipe 1
Its lower earthwork is carried out using hand excavation's mode, until being excavated to substrate pours bed course 7.
5) in former 1 bottom of water service pipe vertically and horizontally hand excavation's well word concealed beam groove, and effective reinforcement attachment beam is used in old bed course 8
Lattice 10, stringer 9, transverse beam 11 are allowed to connect with newly-built bottom plate 12 and anchoring pile 13, pour integral to the former water flowing of jacking support
Pipe 1.
6) it after newly-built 12 curing strength of bottom plate reaches, returns and builds work well construction, the top plate 15 to the subsequent structure well done
(see Fig. 6) intensity reaches rear backfill.
Engineering Projects:
Certain pipe network proposes mark reconstruction project, and active well need to connect the 3500 full packages water concrete reinforced pipe of φ of operation buried depth 6.3m
Road, the pipeline are.Due to buried depth of pipeline depth, diameter is big, and need to guarantee not stop, and tube body is from great.Fully consider each side's factor,
Multi-scheme is carried out than choosing, conventional suspension protection scheme cannot be implemented for this major diameter reinforced concrete pipe that do not stop.It is innovative
Using underground large-diameter pipeline water flowing in-situ conservation construction method of the invention.Achieve success.This is also the first real
Existing major diameter water pipe in-situ conservation case.
Claims (4)
1. a kind of underground large-diameter pipeline water flowing in-situ conservation construction method, which is characterized in that the steps include:
1) before construction working well is gone along with sb. to guard him, physical prospecting first is carried out to former water service pipe and excavates sample ditch to determine the precise plane of former water service pipe
Position and absolute altitude；
2) construction fender post, crosses newly-built underground activities well construction in conjunction with former water service pipe, forms " riding " formula with building enclosure, encloses
Fender pile uses long fender post A and short fender post, is accurately positioned the stake bottom distance for controlling short fender post at the excessively former water service pipe of fender post
200~300mm of former water flowing tube top, while guaranteeing that long fender post A is close to former water flowing tube edges, in case neutral gear gap is too big；
3) the peripheral water-stop curtain outside long stake is gone along with sb. to guard him in construction, for the import and export across former water service pipe, it is ensured that building enclosure
Peripheral containment and sealing；
4) construction collar tie beam and purlin are excavated lower layer cubic metre of earth after per pass purlin curing strength reaches from top to bottom, are successively enclosed
Purlin, earth excavation construction, mechanical excavation is to 200~300mm of former water flowing tube top is arrived, to protect former water service pipe, soil under former water service pipe
Fang Caiyong hand excavation mode carries out, until being excavated to substrate pours bed course；
5) in former water flowing bottom of the tube vertically and horizontally hand excavation's well word concealed beam groove, and in former bed course using effective reinforcement attachment beam lattice, vertical
Beam, transverse beam are allowed to connect with newly-built bottom plate, pour integral to the former water service pipe of jacking support；
6) it after newly-built bottom plate curing strength reaches, returns and builds work well construction, the strength of roof to the subsequent structure well done reaches
Backfill afterwards.
2. underground large-diameter pipeline water flowing in-situ conservation construction method according to claim 1, it is characterised in that: when hole bottom
Lower compacted soil Lack of support is not enough to support top large-diameter pipeline load or hole bottom and bottom plate under tube bottom and empty
When gap, with anchoring pile support beam in length and breadth, and anchoring pile with construct fender post when construct together.
3. underground large-diameter pipeline water flowing in-situ conservation construction method according to claim 1, it is characterised in that: described big
Diameter MJS stake diameters: R1=D/2+L0+ h, wherein D is former water flowing pipe diameter, L0For the MJS lap of splice, >=200mm, the h is taken to be
MJS drills to former water service pipe back gauge, and distance controlling is 100~200mm.
4. underground large-diameter pipeline water flowing in-situ conservation construction method according to claim 1, it is characterised in that: using big
Diameter MJS carry out hole bottom and reinforce, and reinforcement depth is controlled in >=3m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810764318.5A CN109113092A (en) | 2018-07-12 | 2018-07-12 | Construction method is protected in underground large-diameter pipeline original position water flowing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810764318.5A CN109113092A (en) | 2018-07-12 | 2018-07-12 | Construction method is protected in underground large-diameter pipeline original position water flowing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109113092A true CN109113092A (en) | 2019-01-01 |
Family
ID=64862721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810764318.5A Pending CN109113092A (en) | 2018-07-12 | 2018-07-12 | Construction method is protected in underground large-diameter pipeline original position water flowing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109113092A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112458932A (en) * | 2020-10-29 | 2021-03-09 | 上海市政工程设计研究总院（集团）有限公司 | Non-cutoff connection method for single-hole water diversion box culvert |
| CN115110547A (en) * | 2022-06-29 | 2022-09-27 | 上海市政工程设计研究总院（集团）有限公司 | Pipe groove structure and deep pipe groove burying method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486403A (en) * | 2013-10-17 | 2014-01-01 | 中国建筑第六工程局有限公司 | In-situ protection construction method of pipeline above foundation pit |
| CN103541371A (en) * | 2013-10-30 | 2014-01-29 | 北京城建亚泰建设集团有限公司 | Bearing platform for heating pipe channels to stride reserved subway station and construction method thereof |
| CN106641440A (en) * | 2016-12-20 | 2017-05-10 | 北京首钢建设集团有限公司 | Underground pipeline jacking construction method capable of transversely passing through railway line |
| CN108149692A (en) * | 2016-12-06 | 2018-06-12 | 上海浦东建筑设计研究院有限公司 | A kind of supporting construction suitable for non-closed foundation pit |
-
2018
- 2018-07-12 CN CN201810764318.5A patent/CN109113092A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486403A (en) * | 2013-10-17 | 2014-01-01 | 中国建筑第六工程局有限公司 | In-situ protection construction method of pipeline above foundation pit |
| CN103541371A (en) * | 2013-10-30 | 2014-01-29 | 北京城建亚泰建设集团有限公司 | Bearing platform for heating pipe channels to stride reserved subway station and construction method thereof |
| CN108149692A (en) * | 2016-12-06 | 2018-06-12 | 上海浦东建筑设计研究院有限公司 | A kind of supporting construction suitable for non-closed foundation pit |
| CN106641440A (en) * | 2016-12-20 | 2017-05-10 | 北京首钢建设集团有限公司 | Underground pipeline jacking construction method capable of transversely passing through railway line |
Non-Patent Citations (1)
| Title |
|---|
| 刘月: "地铁盾构隧道下穿成寿寺大型排污管道的加固机理研究", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112458932A (en) * | 2020-10-29 | 2021-03-09 | 上海市政工程设计研究总院（集团）有限公司 | Non-cutoff connection method for single-hole water diversion box culvert |
| CN115110547A (en) * | 2022-06-29 | 2022-09-27 | 上海市政工程设计研究总院（集团）有限公司 | Pipe groove structure and deep pipe groove burying method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109723065B (en) | Reinforcing device and deep foundation pit local freezing reinforcing construction method in water-rich gravel stratum | |
| CN108442382B (en) | In-situ protection and enclosure soil-retaining structure for pressure pipeline crossing deep foundation pit and construction method | |
| CN102505695B (en) | Construction method for deep foundation pit of three-dimensional garage | |
| CN102061923B (en) | Tunnel construction method capable of protecting existing building | |
| CN103321230A (en) | Excavation method for deep and big foundation pit in long-distance crossing field for shallow-buried subway | |
| CN102704957A (en) | Shed-frame method for shallowly burying large-sized underground structure construction | |
| CN101343868B (en) | Underground continuous wall construction method of city-across pipeline | |
| CN102966108A (en) | Construction method of deep foundation pit close to building and adopting underground structure as internal support | |
| CN106436720A (en) | Small-size deep foundation pit supporting structure for pipe jacking construction | |
| CN103670448B (en) | A kind of underground utilities protective device and apply the supporting method of this device | |
| CN105909263A (en) | Eolian sand stratum highway tunnel structure and construction method thereof | |
| CN110259490A (en) | A kind of Underground Subway Station construction method | |
| CN211500658U (en) | Shallow tunnel supporting construction that nearly connects that buries suitable for sand ground | |
| CN107938680A (en) | A kind of excavation of foundation pit safe construction method | |
| CN109113092A (en) | Construction method is protected in underground large-diameter pipeline original position water flowing | |
| CN204099720U (en) | The protective housing that under soil stone combination geological condition, artificial pipe jacking construction method is used | |
| CN111560964B (en) | Construction method of rear anti-seepage system of foundation pit | |
| CN108330963A (en) | A kind of constructing device for inside soil body existing pile foundation pile extension | |
| CN110939150A (en) | Emergency rescue method for rapidly constructing large-hydraulic-slope-drop-ratio thin-wall structure in confined water inrush accident state | |
| CN114542092A (en) | Shield receiving construction method without bottom plate structure | |
| CN106968271B (en) | Underground pipe gallery excavates and the construction method of support | |
| Yang et al. | Monitoring and controlling on surface settlement in sand and gravel strata caused by subway station construction applying pipe-roof pre-construction method (PPM) | |
| Feng et al. | Discussion on construction technology of deep foundation pit support in construction engineering | |
| CN111156008A (en) | Shield construction and monitoring method for dangerous source river electric power tunnel | |
| CN110130399A (en) | Tilt trapezoidal piping lane system and its construction method of the supporting in conjunction with main structure |
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: 20190101 |