CN107152035A - The construction method of underground pipe gallery river crossing - Google Patents
The construction method of underground pipe gallery river crossing Download PDFInfo
- Publication number
- CN107152035A CN107152035A CN201710419338.4A CN201710419338A CN107152035A CN 107152035 A CN107152035 A CN 107152035A CN 201710419338 A CN201710419338 A CN 201710419338A CN 107152035 A CN107152035 A CN 107152035A
- Authority
- CN
- China
- Prior art keywords
- piping lane
- cofferdam
- section
- pipe gallery
- underground 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
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
-
- 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
Abstract
The invention provides a kind of construction method of underground pipe gallery river crossing, comprise the following steps：Unwrapping wire determines that piping lane crosses section excavation line position；The diversion canal that section excavation line upstream and downstream is crossed in connecting tube corridor is excavated outside safe distance；Section excavation line both sides are crossed in piping lane, and the first cofferdam and the second cofferdam that can stop current is set respectively；The one end for crossing section excavation line from piping lane after Regional Precipitation between first cofferdam and the second cofferdam is excavated, excavate the depth of design, in foundation pit side-wall, the first pattern foundation pit supporting structure is set, continue to be excavated to piping lane and cross the ultimate depth of section requirement, and the second pattern foundation pit supporting structure is set on the foundation pit side-wall below the first pattern foundation pit supporting structure；Construction piping lane crosses section in the normal order, crosses section after having constructed to piping lane and carries out water-proofing treatment；Foundation ditch is backfilled, after the completion of change back old course by river, continuation is constructed forward piping lane.Present invention process is simple, and technical method can be dug, and safety is guaranteed, and expense is low, economical rationality.
Description
Technical field
The present invention relates to technical field of municipal construction, more specifically, it is related to a kind of construction of underground pipe gallery river crossing
Method.
Background technology
Urban Underground pipe gallery gradually rises from study abroad Advanced Cities underground pipeline management experience in recent years
Construction project.By building underground pipe gallery by the water (water supply, reclaimed water, sewage) of all direct-burrieds, electric (electric power, telecommunication), warm
(heating), combustion gas etc. are fully incorporated piping lane, and the facility such as addition monitoring in piping lane, it is ensured that the later stage maintains easily maintenance.It is new to add
There are many water systems in pipeline, city or do landscape or serve a town with water, drain off floodwaters, irrigating used, or even many cities are just according to water
Occupy, built according to river, therefore frequently encountered in underground pipe gallery construction and wear river under need, conventional method is substantially to follow subway work method
Take shield method or shallow mining method.Shield method, subsurface excavation method are both needed in sinking Duan Liushe active wells, advancing equipment, unlike
Shield hyperbolic method typically requires that sinking section is longer, because shield tunnel machine is larger, from Starting Well to receiving well, and require buried depth compared with
Greatly, therefore using more in the tunnel construction of great river.Subsurface excavation method will typically carry out pipe shed support, and side branch safe edge is dug, and has the disadvantage technique
Tired lock, long construction period is high to construction requirement under sand bed especially riverbed, therefore costly.Fig. 1 is subsurface excavation method operating diagram,
Another difficulty of subsurface excavation method is that active well excavation is deeper, and difficulty of construction is big, and the condition such as ventilation requires higher, and potential safety hazard is big, especially
It requires tighter to river degree soil property.These methods are not only costly, and limited again by many conditions, how to develop a kind of letter
Single easy and safe and reliable technology, completes river crossing construction task, is that many piping lane units in charge of construction must problems faced.
The content of the invention
In view of the above problems, it is an object of the invention to provide a kind of construction method of underground pipe gallery river crossing, to solve
The problem of high cost of current piping lane river crossing and limited construction.
What the present invention was realized by following technical scheme：
A kind of construction method of underground pipe gallery river crossing, comprises the following steps：
S1：Unwrapping wire determines that piping lane crosses section excavation line position；
S2：The diversion canal that section excavation line upstream and downstream is crossed in connecting tube corridor is excavated outside safe distance；
S3：Section excavation line both sides are crossed in piping lane, and the first cofferdam and the second cofferdam that can stop current is set respectively；
S4：The one end for crossing section excavation line from piping lane after Regional Precipitation between first cofferdam and the second cofferdam is opened
Dig, excavate the depth to design, the first pattern foundation pit supporting structure is set in foundation pit side-wall, continue to be excavated to piping lane and cross the final of section requirement
Depth, and the second pattern foundation pit supporting structure is set on the foundation pit side-wall below the first pattern foundation pit supporting structure；
S5：Construction piping lane crosses section in the normal order, crosses section after having constructed to piping lane and carries out water-proofing treatment；
S6：Foundation ditch is backfilled, after the completion of change back old course by river, continuation is constructed forward piping lane.
Preferably, piping lane crosses minimum range of the top surface from river bottom of section not less than 2m.
Preferably, the second cofferdam is located at the downstream in the first cofferdam, and side of second cofferdam away from first cofferdam is set
Put construction road.
Preferably, construction road side, which is crossed, buries culvert pipe at truck position.
Preferably, the diversion canal is excavated from river upstream.
Preferably, the piping lane crosses one end of section excavation line and crosses section excavation line close to the one of diversion canal for piping lane
End.
Preferably, the method for pattern foundation pit supporting structure is set first to hang expanded metal lath and then gunite concrete slurry on the side wall of foundation ditch
Liquid.
Preferably, the method for water-proofing treatment pastes protective layer again first to apply waterproof layer on the wall of piping lane side.
Preferably, the width in the first cofferdam is not less than 10m.
Preferably, the safe distance on the midpoint of diversion canal to riverbank corresponding thereto is 8-15m.
The present invention at least includes following beneficial effect：Using excavation diversion canal in the underground pipe gallery construction method of the present invention
Cofferdam is formed come piping lane of constructing, with tube well dewatering, linked network spray shield carries out pattern foundation pit supporting structure, and not only speed of application is fast, and safety can
Lean on, expense is low, construction technology is feasible, have broad application prospects.
In order to realize above-mentioned and related purpose, one or more aspects of the invention include will be explained in below especially
The feature pointed out.Some illustrative aspects of the present invention are described in detail in following explanation and accompanying drawing.However, these aspects refer to
What is shown is only some modes in the various modes for can be used the principle of the present invention.In addition, it is contemplated that including it is all this
A little aspects and their equivalent.
Brief description of the drawings
It is of the invention by reference to the description below in conjunction with accompanying drawing, and with the present invention is more fully understood
Other purposes and result will be more apparent and should be readily appreciated that.In the accompanying drawings：
Fig. 1 is the operating diagram of subsurface excavation method；
Fig. 2 is that piping lane crosses section river crossing plan；
Fig. 3 is that piping lane crosses section river crossing profile；
Fig. 4 is the operating diagram of one embodiment of the present of invention.
In Fig. 1：1- lifting means, 2- blower fans, 3- active wells, 4- pipe canopies, 5- earth-moving plants, 6- support frames；
Identical label indicates similar or corresponding feature or function in Fig. 2, Fig. 3 and Fig. 4.
Wherein, 1- piping lanes cross section, and 2- piping lane normal reaches, 3- piping lanes cross the minimum thickness of earth covering of section top surface, and 4- water conservancy diversion is bright
Canal, the waters of 50- first, the waters of 51- second, the waters of 52- the 3rd, the cofferdam of 6- first, the cofferdam of 7- second, 8- construction roads, 9- is contained
Pipe.
Embodiment
The specific embodiment of the present invention is described in detail below with reference to accompanying drawing.
The present embodiment is illustrated by taking the underground pipe gallery construction method of Wuzhong City as an example.
Engineering Notice
Wuzhong city east underground pipe gallery, which has, need to pass through clear water river at three, clear water river is in dry season river width 15m, depth of water 1.5-
2.5m, in flood season and spring irrigation season river width 25m, depth of water 4.5m, piping lane crosses section river crossing plan, profile and sees figure respectively
2 and Fig. 3.
Detail design and construction technology
To ensure section bridge security and river normally flows through from now on, section 1 is crossed to Beijing through linking up piping lane with design
15m is moved, 2.0m under river bed, the normal construction of piping lane normal reach 2 is sunk down into.Piping lane is crossed the minimum thickness of earth covering 3 of section top surface and is not less than
2m is so as to ensure the safety of piping lane.The cutting depth requirement that piping lane crosses section 1 is 14.6m, and local plash cutting depth is needed extremely
16.8m。
Unwrapping wire, crosses the sink section excavation line of section 1 by piping lane and releases.The corresponding riverbed side of the excavation line of section 1 is crossed in piping lane
Safe distance is reserved, the construction to the later stage reserves enough spaces, also ensure that the safety under flood season or emergency case.Peace
Full distance determines according to the width and retaining situation in river, generally 8-15m, and the safe distance of the clear water river in the present embodiment is
10m.See Fig. 4, connecting tube corridor is excavated outside safe distance and crosses the upstream of section 1 and crosses the diversion canal 4 in section river downstream, i.e. water conservancy diversion
The distance in the midpoint of open channel 4 to side riverbed is 10m, and wherein diversion canal 4 is crossed the upstream of section 1 from piping lane and first excavated.Then exist
Piping lane crosses the first cofferdam 6 and the second cofferdam 7 that the backfill of the excavation line both sides of section 1 can stop clear water river current, wherein first encloses
Weir 6 is located at the upstream of the second cofferdam 7, and the first cofferdam 6 backfill width is no less than 10m, side of second cofferdam 7 away from the first cofferdam 6
Construction road 8 is set.Due to the presence in the first cofferdam 6 and the second cofferdam 7, clear water river is cut into by the first cofferdam 6 and the second cofferdam 7
Three pieces of waters, i.e., the first waters 50 positioned at the upstream of the first cofferdam 6, the second water between the first cofferdam 6 and the second cofferdam 7
Domain 51 and the 3rd waters 52 positioned at the downstream of the second cofferdam 7.And due to being stopped, current can only be from the first waters 50 via leading
Lumen canal 4 is flow in the 3rd waters 52.
Construct for convenience, the vehicle to construction reserves passing road, in construction road 8 close to the side of diversion canal 4
4 row DN300 culvert pipe 9 is buried into diversion canal 4, the overall length for often arranging culvert pipe 9 is 14m, so both conveniently born the logical of vehicle
OK, passing through for current in diversion canal 4 and is not influenceed.In order that must construct have enough working face and it is convenient beat dewatering well,
The overall width of second cofferdam 7 and construction road 8 is 25m.Water in second waters 51 is extracted out with water pump, then will with dewatering well
Below the near depth for needing to construct of underground water.The excavation line of section 1 is crossed from piping lane to be excavated close to the side of diversion canal 4,
It is 7m depths to have excavated first layer sand, sets pattern foundation pit supporting structure in the foundation pit side-wall of the excavation, sets pattern foundation pit supporting structure to prevent foundation ditch
The silt of side wall caves in the presence of underground water.The specific method to set up of pattern foundation pit supporting structure is first to hang steel plate in foundation pit side-wall
Net and then injection 60mm thickness C20 concretes, during injection C20 concretes, 200mm wide regions in place are reserved on expanded metal lath and do not spray C20 concretes, with
Just continue overlap joint steel wire when the lower foundation ditch dug sets pattern foundation pit supporting structure to use.Base can be increased by first hanging expanded metal lath before injection C20 concretes
Cheat the intensity and fastness of supporting.Continuation is excavated to the depth finally required downwards, in the reserved place's overlap joint steel plate of above-mentioned expanded metal lath
Net, then in foundation pit side-wall and base injcction 60mm the thickness C20 concretes of lower digging.Following piping lane of constructing in the normal order.Construct
After be made in piping lane and cross section side wall and coat waterproof layer, then paste protective layer.Back-filling in layers foundation ditch afterwards, after the completion of river is changeed back
Old course, continues piping lane of constructing forward.
The construction method of underground pipe gallery river crossing according to the present invention is described in an illustrative manner above with reference to accompanying drawing.But
It is, it will be appreciated by those skilled in the art that the construction method of the underground pipe gallery river crossing proposed for the invention described above, also
Various improvement can be made on the basis of present invention is not departed from.Therefore, protection scope of the present invention should be by appended
The content of claims is determined.
Claims (10)
1. a kind of construction method of underground pipe gallery river crossing, it is characterised in that comprise the following steps：
S1：Unwrapping wire determines that piping lane crosses section excavation line position；
S2：The diversion canal that section excavation line upstream and downstream is crossed in connecting tube corridor is excavated outside safe distance；
S3：Section excavation line both sides are crossed in piping lane, and the first cofferdam and the second cofferdam that can stop current is set respectively；
S4：The one end for crossing section excavation line from piping lane after Regional Precipitation between first cofferdam and the second cofferdam is excavated,
The depth of design is excavated, the first pattern foundation pit supporting structure is set in foundation pit side-wall, continues to be excavated to the final depth that piping lane crosses section requirement
Degree, and the second pattern foundation pit supporting structure is set on the foundation pit side-wall below the first pattern foundation pit supporting structure；
S5：Construction piping lane crosses section in the normal order, crosses section after having constructed to piping lane and carries out water-proofing treatment；
S6：Foundation ditch is backfilled, after the completion of change back old course by river, continuation is constructed forward piping lane.
2. the construction method of underground pipe gallery river crossing as claimed in claim 1, it is characterised in that piping lane crosses the top surface of section
Minimum thickness of earth covering is not less than 2m.
3. the construction method of underground pipe gallery river crossing as claimed in claim 1, it is characterised in that the second cofferdam is located at first
The downstream in cofferdam, side of second cofferdam away from first cofferdam sets construction road.
4. the construction method of underground pipe gallery river crossing as claimed in claim 3, it is characterised in that led from construction road is close
Multiple rows of hollow culvert pipe is buried into diversion canal in the side of lumen canal.
5. the construction method of underground pipe gallery river crossing as claimed in claim 1, it is characterised in that the diversion canal is from river
Excavated upstream.
6. the construction method of underground pipe gallery river crossing as claimed in claim 1, it is characterised in that the piping lane is crossed section and opened
Dig one end of line and cross section excavation line close to one end of diversion canal for piping lane.
7. the construction method of underground pipe gallery river crossing as claimed in claim 1, it is characterised in that the side of pattern foundation pit supporting structure is set
Method is that expanded metal lath and then gunite concrete slurries are first hung on the side wall of foundation ditch.
8. the construction method of underground pipe gallery river crossing as claimed in claim 1, it is characterised in that the method for water-proofing treatment is
Waterproof layer is first applied on the wall of piping lane side and pastes protective layer again.
9. the construction method of underground pipe gallery river crossing as claimed in claim 1, it is characterised in that the width in the first cofferdam is not
Less than 10m.
10. the construction method of underground pipe gallery river crossing as claimed in claim 1, it is characterised in that the midpoint of diversion canal
Safe distance to riverbank corresponding thereto is 8-15m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710419338.4A CN107152035A (en) | 2017-06-06 | 2017-06-06 | The construction method of underground pipe gallery river crossing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710419338.4A CN107152035A (en) | 2017-06-06 | 2017-06-06 | The construction method of underground pipe gallery river crossing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107152035A true CN107152035A (en) | 2017-09-12 |
Family
ID=59795054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710419338.4A Pending CN107152035A (en) | 2017-06-06 | 2017-06-06 | The construction method of underground pipe gallery river crossing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107152035A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108755720A (en) * | 2018-06-14 | 2018-11-06 | 中国十七冶集团有限公司 | The relatively narrow river water method of river diversion for crossing water river is worn under large-scale synthesis piping lane |
| CN109137970A (en) * | 2018-08-24 | 2019-01-04 | 中国华冶科工集团有限公司 | Arterial highway underground pipe gallery construction method |
| CN109235221A (en) * | 2018-11-16 | 2019-01-18 | 上海市地下空间设计研究总院有限公司 | A kind of subterranean tunnel through bridge structure |
| CN110043272A (en) * | 2019-04-10 | 2019-07-23 | 中铁十二局集团有限公司 | The method gushed in control shield machine tunneling process |
| CN111379307A (en) * | 2020-02-26 | 2020-07-07 | 广州市第四建筑工程有限公司 | Construction method of municipal sewage pipe engineering based on underground old civil air defense works |
| CN111396084A (en) * | 2020-02-26 | 2020-07-10 | 广州市第四建筑工程有限公司 | Underground old civil air defense construction method with accumulated water inside |
| CN113818446A (en) * | 2021-08-20 | 2021-12-21 | 杭州市市政工程集团有限公司 | Tunnel foundation pit construction method for traversing non-navigable river channel |
| CN117454466A (en) * | 2023-09-21 | 2024-01-26 | 长江勘测规划设计研究有限责任公司 | Factory dam safety distance quantitative control method for arranging underground factory building on near arch dam abutment |
| CN117454466B (en) * | 2023-09-21 | 2024-04-26 | 长江勘测规划设计研究有限责任公司 | Factory dam safety distance quantitative control method for arranging underground factory building on near arch dam abutment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892632A (en) * | 2009-05-19 | 2010-11-24 | 上海市基础工程公司 | Construction method of structural system of river under no-cutoff working condition |
| CN104032714A (en) * | 2014-06-25 | 2014-09-10 | 中国电建集团华东勘测设计研究院有限公司 | Once-closure and staging-closure combined dam type power plant construction diversion method |
| CN104895119A (en) * | 2015-04-07 | 2015-09-09 | 中国建筑第六工程局有限公司 | Waterproof construction method for river channel down-crossing underground structure |
| CN105697021A (en) * | 2016-01-25 | 2016-06-22 | 济南轨道交通集团有限公司 | Prefabricated tunnel allowing tunnel shield to penetrate shallow covering riverbed and construction method |
-
2017
- 2017-06-06 CN CN201710419338.4A patent/CN107152035A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892632A (en) * | 2009-05-19 | 2010-11-24 | 上海市基础工程公司 | Construction method of structural system of river under no-cutoff working condition |
| CN104032714A (en) * | 2014-06-25 | 2014-09-10 | 中国电建集团华东勘测设计研究院有限公司 | Once-closure and staging-closure combined dam type power plant construction diversion method |
| CN104895119A (en) * | 2015-04-07 | 2015-09-09 | 中国建筑第六工程局有限公司 | Waterproof construction method for river channel down-crossing underground structure |
| CN105697021A (en) * | 2016-01-25 | 2016-06-22 | 济南轨道交通集团有限公司 | Prefabricated tunnel allowing tunnel shield to penetrate shallow covering riverbed and construction method |
Non-Patent Citations (1)
| Title |
|---|
| 西部探矿工程: ""跨梅坞溪段暗渠基坑施工技术"", 《西部探矿工程》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108755720A (en) * | 2018-06-14 | 2018-11-06 | 中国十七冶集团有限公司 | The relatively narrow river water method of river diversion for crossing water river is worn under large-scale synthesis piping lane |
| CN109137970A (en) * | 2018-08-24 | 2019-01-04 | 中国华冶科工集团有限公司 | Arterial highway underground pipe gallery construction method |
| CN109235221A (en) * | 2018-11-16 | 2019-01-18 | 上海市地下空间设计研究总院有限公司 | A kind of subterranean tunnel through bridge structure |
| CN110043272A (en) * | 2019-04-10 | 2019-07-23 | 中铁十二局集团有限公司 | The method gushed in control shield machine tunneling process |
| CN111379307A (en) * | 2020-02-26 | 2020-07-07 | 广州市第四建筑工程有限公司 | Construction method of municipal sewage pipe engineering based on underground old civil air defense works |
| CN111396084A (en) * | 2020-02-26 | 2020-07-10 | 广州市第四建筑工程有限公司 | Underground old civil air defense construction method with accumulated water inside |
| CN113818446A (en) * | 2021-08-20 | 2021-12-21 | 杭州市市政工程集团有限公司 | Tunnel foundation pit construction method for traversing non-navigable river channel |
| CN117454466A (en) * | 2023-09-21 | 2024-01-26 | 长江勘测规划设计研究有限责任公司 | Factory dam safety distance quantitative control method for arranging underground factory building on near arch dam abutment |
| CN117454466B (en) * | 2023-09-21 | 2024-04-26 | 长江勘测规划设计研究有限责任公司 | Factory dam safety distance quantitative control method for arranging underground factory building on near arch dam abutment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107152035A (en) | The construction method of underground pipe gallery river crossing | |
| CN102418347B (en) | Drainage construction method for blind drain and sump wells in deep foundation pit | |
| CN108547639B (en) | Tunnel closes on the advanced same more conduit delamination pour slurry construction methods in hole of existing buildings | |
| CN111577383B (en) | Method for treating tunnel leakage water in alpine region | |
| CN103726495B (en) | Coastal waters deep foundation pit supporting structure and construction method thereof | |
| CN106049532A (en) | Supporting and retaining device for open excavation construction of comprehensive pipe gallery and construction method thereof | |
| CN108797618A (en) | One kind being used for Urban Underground pipe gallery drainage of foundation pit structure and its construction method | |
| CN105888693A (en) | Treating construction method for water burst of small underground river of highway tunnel | |
| CN110984200B (en) | Method for draining water of foundation pit of binary geological structure layer | |
| CN108343035A (en) | River construction method is worn under shallow tunnel | |
| CN103343690B (en) | Construction method of shaft antiseep structure used when large section of inclined shaft passes through aquifer | |
| CN112253847B (en) | Pipeline construction method for sand geological water network area | |
| CN109594574A (en) | Large-scale push pipe open caisson reversed construction method based on the confined space | |
| CN1063518C (en) | Drainage cut-off (deep ditch high-building method) drainage and supplying optimization combination for preventing and harnessing groud water | |
| CN106761914B (en) | A kind of routed water water damage prevention and controls of shallow buried coal seam mine raceway groove flood | |
| CN110117959B (en) | Construction method for foundation pit support near river | |
| CN110185051A (en) | Deep narrow excavation water discharge method | |
| CN212336250U (en) | Pipe jacking connection guide row structure | |
| CN110485465B (en) | Circular working well with water-rich stratum with preset pipe jacking door opening and construction method of circular working well | |
| CN208486227U (en) | The nonopiate anti-structure of drainning off floodwaters of Gobi Region solar energy optical-thermal place | |
| CN111894103A (en) | Pipe jacking connection guide row structure and pipe jacking connection method | |
| CN106968271B (en) | Underground pipe gallery excavates and the construction method of support | |
| CN107386320B (en) | Pass through the construction method of the underground pipe gallery of buried concrete waterpipe | |
| CN205839799U (en) | A kind of pipe gallery open-cut props up blocking means | |
| CN109555141A (en) | A kind of forced-ventilated water system and construction method for super-sized foundation pit |
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: 20170912 |