CN107675717A - Phytal zone green jumbo bag cofferdam construction method - Google Patents
Phytal zone green jumbo bag cofferdam construction method Download PDFInfo
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- CN107675717A CN107675717A CN201710810361.6A CN201710810361A CN107675717A CN 107675717 A CN107675717 A CN 107675717A CN 201710810361 A CN201710810361 A CN 201710810361A CN 107675717 A CN107675717 A CN 107675717A
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- cofferdam
- jumbo bag
- water
- phytal zone
- china fir
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- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
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Abstract
The present invention discloses a kind of phytal zone green jumbo bag cofferdam construction method, comprises the following steps：Preparation of construction → surveying and locating → jumbo bag back-up sand → jumbo bag is launched, pile → edge sealing water blockoff → draws water → and substrate desilting, leveling → cushion construction → structure construction finish → cofferdam demolition outward transport.The present invention reduces the influence to the living environment of aquatic organism using green jumbo bag cofferdam construction method, maintains the ecological balance.
Description
Technical field
The present invention relates to a kind of phytal zone green jumbo bag cofferdam construction method, belong to technical field of building construction.
Background technology
With the continuous development of Chinese society economy, the environmental consciousness of the people is constantly strengthened, and increasingly payes attention to ecology
The protection of environment.While infrastructure side just people's lives are greatly developed, pollution how is reduced in construction, rationally efficiently
Solution construction and ecology between contradiction, ensure construction safety, reduce to greatest extent to periphery ecology influence, it is exactly green
Color construction is advocated.
Especially in south of the River dense waterway net region, the river lake branch of a river is numerous, and it is general water level is shallower, the water flows gently, use during construction more
Traditional clay braiding sack cofferdam and steel cofferdam method, during construction production be highly vulnerable to breakage life into the pollution such as alluvial, greasy dirt, noise
State balances, if river and lake nearby has culture fishery, even more living environment biological in river course is influenceed very big.Therefore, have
Necessity takes a kind of construction method of green non-pollution, effectively avoids this type of circumstances from happening.
The content of the invention
Goal of the invention：In order to protect the ecological environment of the dense waterway net regions such as river and lake, it is green that the present invention provides a kind of phytal zone
Color jumbo bag cofferdam construction method, the influence to the living environment of aquatic organism is reduced using green jumbo bag cofferdam construction method, maintained
The ecological balance.
Technical scheme：Green jumbo bag cofferdam construction method in phytal zone of the present invention, comprises the following steps：
（1）Preparation of construction；
（2）Surveying and locating：Require to determine cofferdam scope according to on-site actual situations and suspended deck structure；
（3）Jumbo bag loads sand：Using filling sand is manually or mechanically carried out, loadings are the 80% of jumbo bag capacity, using fiber crops after filling
Rope or colligation silk are sewed it up sack；
（4）Jumbo bag is launched, pile：Jumbo bag handling is thrown in water using digging machine or crane, human assistance jumbo bag is sunk, by ton
Bag pile forms cofferdam, and the often row in cofferdam, often row carry out wrong raft and be mutually twisted arrangement, and pile is neat, must not straight joint ornaments jumbo bag；
Bound after building out the water surface using small-sized woven bag to designed elevation in cofferdam；
（5）Edge sealing water blockoff：Overall encapsulating will be carried out using waterproof cloth on the outside of cofferdam；
（6）Draw water：It can reach designed elevation after ensuring cofferdam compacting, arrange water pump to carry out stage and draw water, water level often declines
Made a short pause during 30cm；
（7）Substrate desilting, leveling, bed course and corresponding construction construction in cofferdam；
（8）Increased according to the actual conditions in cofferdam, inner side reinforces or outside reinforces until shaping；
（9）Cofferdam demolition is transported outward：After construction terminates, cofferdam demolition is by downstream, by weir crest to weir bottom, back side is to meeting water
Face, progressively remove.
Further improve above-mentioned technical proposal, a length of 1m of specification, a width of 1m, the height 1.5m of the jumbo bag, jumbo bag filling
Into circle, ship shape, it is square in any shape.
Further, the designed elevation is higher than year peak level 0.5m.
Further, mouth flange 0.5m or a jumbo bag width under the waterproof cloth, flange are compacted using jumbo bag.
Further, when the depth of water of phytal zone is 0 ~ 1m, arrangement is staggered front to back using two row's individual layer jumbo bags.
Further, when the depth of water of phytal zone is 1 ~ 2m, in cofferdam, disposed inboard one encloses the closely coupled China fir of stake stake,
The a diameter of 15cm of China fir, length 4.5m, China fir driving depth 2m, exposed 2.5m, steel wire bar is used on exposed China fir top
Carry out binding reinforcing.
Further, when the depth of water of phytal zone is 2 ~ 3m, on the inside of cofferdam, outside set a circle stake stake closely coupled respectively
China fir, a diameter of 15cm of China fir, length 6m, China fir driving depth 2.5m, exposed 3.5m, used on exposed China fir top
Steel wire bar carries out binding reinforcing, and inner side China fir is interval with steel wire rope to drawing with outside China fir, and compartment is away from for 1m.
Beneficial effect：（1）Green jumbo bag cofferdam construction method in phytal zone provided by the invention, be bridge pile foundation in water plinth,
Bearing platform construction ancillary method, is also adaptable to river training works, especially suitable for the shallow water area within the intensive 3m in the network of rivers, right
Environment and ecological protection require higher aquaculture area, have advocated the theory of green construction, environmental pollution is small：Glued with tradition
Native woven bag cofferdam construction engineering method compares, and substitutes clay with sand, the creatures live such as fish environment is influenceed few.With traditional steel plate
Pile cofferdam is constructed, and noise pollution is few, prevents the entrance of oil pollutant.
（2）Good economy performance：It can be used in turn by the material of elevated bridge piling prepressing, save substantial amounts of material, together
When use after jumbo bag sand can also reuse, accomplished green circulatory construction.
（3）Easy construction：Sandstone resistance is small, and jumbo bag loads convenient.
（4）Construction safety：Heavy mechanical equipment is not needed, conventional cranes can meet to require.
（5）Strong adaptability：This construction method is also adaptable to the dredging waterway construction of south of the River dense waterway net region, especially for nothing
Method takes the region of large-scale construction equipment to have its unique advantage.
Brief description of the drawings
Fig. 1 represents that the depth of water is 0 ~ 1 meter of green jumbo bag cofferdam floor plan；
Fig. 2 is Fig. 1 profiles；
Fig. 3 represents that the depth of water is 1 ~ 2 meter of green jumbo bag cofferdam profile；
Fig. 4 is Fig. 3 profiles
Fig. 5 represents that the depth of water is 2 ~ 3 meters of green jumbo bag cofferdam profiles；.
Fig. 6 is Fig. 5 profiles；
In figure：1st, 11,21- back-up sand jumbo bags；2- waterproof clothes；3rd, 13, the works such as 23- cushion caps；14th, 24- China firs；15th, 25- steel wires
Rope anchor ear；26- steel wire ropes are to drawing；A- constructing operation distances；.
Embodiment
Technical solution of the present invention is described in detail below by accompanying drawing, but protection scope of the present invention is not limited to
The embodiment.
Embodiment 1：Green jumbo bag cofferdam construction method in phytal zone provided by the invention, mainly includes：Preparation of construction → survey
Amount setting-out → jumbo bag filling sand → jumbo bag is launched, pile → edge sealing water blockoff → draws water → and substrate desilting, leveling → cushion construction →
Structure construction finishes → cofferdam demolition outward transport.
（1）Preparation of construction
Be ready to jumbo bag and other about instrument, material.
（2）Surveying and locating
Determined according to the requirement of on-site actual situations and suspended deck structure and determine cofferdam scope, because by hydrostatic gross pressure and stress
The influence at center, the applicable principle of integrated economics, the centre of cofferdam side uses circular arc to reduce the lateral pressure of water.
（3）Jumbo bag loads sand
On the coast manually or small machine carries out filling sand, ton dress（Specification the length and width 1m × 1m, height 1.5m of jumbo bag）In
Sand is 80% or so of bag capacity, and sewed it up sack with the rope made of hemp or colligation silk.
（4）Jumbo bag is launched, pile
Jumbo bag is launched and pile is thrown to pool bottom using conventional cranes allocation and transportation jumbo bag, is bound, thrown using small-sized woven bag after water outlet
It should not use and jettisoning when putting jumbo bag, should use by the way of slipping along hill wash, and the mutual fissure of displacement before and after requirement, and pile is whole as far as possible
Together, to strengthen the overall stability in cofferdam.Woven bag is launched in water, can be sent with a pair of pole hooks with hook in place, braiding
Bag answers downsea to be sent into water, in order to avoid destroying, causes seepage；Height, width and the slope of weir dike should be depending on the depth of river embankment water
(it is higher than ordinary water level above 0.5m）.
（5）Edge sealing water blockoff
Small-sized woven bag is stacked after terminating after cofferdam, in jumbo bag to designed elevation, will then be carried out using waterproof cloth on the outside of cofferdam
Overall encapsulating, waterproof cloth will ensure a certain amount of lap of splice, to reduce seepage, avoid weaving the sand in jumbo bag by current scour
It is lost in.
(6）Draw water
After water surface 0.5m is built out in cofferdam（Water surface 0.5m can be higher by after ensuring compacting）, you can arrange water pump to carry out draining；Meanwhile need
It is specifically intended that cofferdam internal drainage can not disposably on earth, it is necessary to periodically carries out, stops in water level decreasing 30cm or so
Pause, progressively to make cofferdam stable；Meanwhile in pump process, it is necessary to strengthen observation, one notes abnormalities, it is necessary to takes phase
The remedial measure answered.
(7) substrate desilting, leveling, bed course and corresponding construction construction
(8) draw water after end, carry out substrate desilting, leveling, bed course and corresponding construction construction immediately, can root in work progress
Increased according to the actual conditions in cofferdam or medial and lateral reinforce, until shaping；To ensure the stability of jumbo bag cofferdam structure, peace
Quan Xing, cofferdam should send special messenger to be observed weir body, measured at any time after terminating, and pinpoint the problems and take reinforcement measure in time.
(9) cofferdam demolition is transported outward
After construction terminates, cofferdam demolition is by downstream, by weir crest to weir bottom, back side to upstream face, progressively remove.Concentrate and adjust
Fortune, can be used as bridge piling prepressing.
With reference to the peaceful Li line civil engineering TA04 marks of Line of Nanjing Subway, across Yihe River pool jumbo bag cofferdam construction example is illustrated,
This river embankment depth is less than 1 meter, referring specifically to shown in Fig. 1 and Fig. 2：
According to surveying setting-out, the position of institute's constructing structure thing 3 is determined, apart from the certain distance A of structure 3, is constructed for green jumbo bag 1
Scope, after jumbo bag launches pile, the edge sealing water blockoff of waterproof cloth 2 is carried out, to reach waterproof effect.Jumbo bag 1 is according to water surface height
Determine stacking height and bottom width；Because south of the River dense waterway net region bed-silt is more, how gentle current are, in pile jumbo bag 1, preferably
Low wide and up narrow, peak level determines per year for jumbo bag 1 apical side height, is typically higher by water surface 0.5m；Jumbo bag shape can be according to current
Concrete condition, it is designed to circle, ship shape, square etc..The edge sealing water blockoff after the pile of jumbo bag 1 of waterproof cloth 2, to reach waterproof effect；
2 lower mouthfuls of flange of waterproof cloth, 0.5 meter or one jumbo bag width, to ensure that the later stage uses, flange is compacted with jumbo bag.Applied in engineering in cofferdam
After the completion of work, outward transport is removed, removes by downstream, to weir bottom since the top of weir, from back side to upstream face, progressively tears open
Remove, jumbo bag concentrates handling.Because using sand material, engineering construction such as bridge preloading may continue as.
Embodiment 2：When the depth of water of region is 1 ~ 2 meter, as shown in Figure 3, Figure 4, in the cofferdam disposed inboard of jumbo bag 11
Diameter 15cm China firs 14, length are 4.5 meters, and China fir one uninterruptedly arranges against one, 2 meters of China fir driving depth, exposed 2.5
Rice, binding reinforcing is carried out on the exposed top of China fir 14 using steel wire bar 15.Digging machine bucket tooth can be used to carry out suppressing wood for fir pile
Stake, if fir pile suppresses difficulty, can use special ramming machine instead and be driven piles, and piling requires that stake stake is closely coupled, must not be interrupted,
All fir piles are highly consistent.
Embodiment 3：When the depth of water of region is 2 ~ 3 meters, as shown in Figure 5, Figure 6, now according to the height of jumbo bag 21,
Diameter 15cm is set respectively in the medial and lateral in jumbo bag cofferdam, the China fir 24 that length is 6 meters, China fir 24 one abuts one not
Interruption arrangement, 2.5 meters of fir pile driving depth, exposed 3.5 meters, all fir piles are highly consistent, on the top of exposed China fir 24
End takes steel wire bar 25 to carry out binding reinforcing, steel wire rope 26 is interval between inner side China fir and outside China fir to drawing, compartment
Away from for 1m.
As described above, although the present invention has been represented and described with reference to specific preferred embodiment, but it must not be explained
For to the limitation of itself of the invention., can be right under the premise of the spirit and scope of the present invention that appended claims define are not departed from
Various changes can be made in the form and details for it.
Claims (7)
1. phytal zone green jumbo bag cofferdam construction method, it is characterised in that comprise the following steps：
（1）Preparation of construction；
（2）Surveying and locating：Require to determine cofferdam scope according to on-site actual situations and suspended deck structure；
（3）Jumbo bag loads sand：Using filling sand is manually or mechanically carried out, loadings are the 80% of jumbo bag capacity, using fiber crops after filling
Rope or colligation silk are sewed it up sack；
（4）Jumbo bag is launched, pile：Jumbo bag handling is thrown in water using digging machine or crane, human assistance jumbo bag is sunk, by ton
Bag pile forms cofferdam, and the often row in cofferdam, often row carry out wrong raft and be mutually twisted arrangement, and pile is neat, must not straight joint ornaments jumbo bag；
Bound after building out the water surface using small-sized woven bag to designed elevation in cofferdam；
（5）Edge sealing water blockoff：Overall encapsulating will be carried out using waterproof cloth on the outside of cofferdam；
（6）Draw water：It can reach designed elevation after ensuring cofferdam compacting, arrange water pump to carry out stage and draw water, water level often declines
Made a short pause during 30cm；
（7）Substrate desilting, leveling, bed course and corresponding construction construction in cofferdam；
（8）Increased according to the actual conditions in cofferdam, inner side reinforces or outside reinforces until shaping；
（9）Cofferdam demolition is transported outward：After construction terminates, cofferdam demolition is by downstream, by weir crest to weir bottom, back side is to meeting water
Face, progressively remove.
2. phytal zone green jumbo bag cofferdam construction method according to claim 1, it is characterised in that：The specification length of the jumbo bag
For 1m, a width of 1m, height 1.5m, jumbo bag be packed into circle, ship shape, it is square in any shape.
3. phytal zone green jumbo bag cofferdam construction method according to claim 1, it is characterised in that：The designed elevation is height
In year peak level 0.5m.
4. phytal zone green jumbo bag cofferdam construction method according to claim 1, it is characterised in that：Mouth turns under the waterproof cloth
Side 0.5m or a jumbo bag width, flange are compacted using jumbo bag.
5. phytal zone green jumbo bag cofferdam construction method according to claim 1, it is characterised in that：When the depth of water of phytal zone is
During 0 ~ 1m, arrangement is staggered front to back using two row's individual layer jumbo bags.
6. phytal zone green jumbo bag cofferdam construction method according to claim 1, it is characterised in that：When the depth of water of phytal zone is
During 1 ~ 2m, in cofferdam, disposed inboard one encloses the closely coupled China fir of stake stake, a diameter of 15cm of China fir, length 4.5m, and China fir is beaten
Enter depth 2m, exposed 2.5m, binding reinforcing is carried out using steel wire bar on exposed China fir top.
7. phytal zone green jumbo bag cofferdam construction method according to claim 1, it is characterised in that：When the depth of water of phytal zone is
2 ~ 3m, on the inside of cofferdam, outside the closely coupled China fir of one circle stake stake, a diameter of 15cm of China fir, length 6m, China fir are set respectively
Wooden driving depth 2.5m, exposed 3.5m, binding reinforcing, inner side China fir and outside are carried out using steel wire bar on exposed China fir top
China fir is interval with steel wire rope to drawing, and compartment is away from for 1m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710810361.6A CN107675717A (en) | 2017-09-09 | 2017-09-09 | Phytal zone green jumbo bag cofferdam construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710810361.6A CN107675717A (en) | 2017-09-09 | 2017-09-09 | Phytal zone green jumbo bag cofferdam construction method |
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| Publication Number | Publication Date |
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| CN107675717A true CN107675717A (en) | 2018-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710810361.6A Pending CN107675717A (en) | 2017-09-09 | 2017-09-09 | Phytal zone green jumbo bag cofferdam construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022764A (en) * | 2019-12-29 | 2020-04-17 | 中铁五局集团第二工程有限责任公司 | Dry construction method for water diversion pipe water-land adapter |
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| CN203188224U (en) * | 2013-03-15 | 2013-09-11 | 浙江省交通工程建设集团有限公司 | Geomembrane bag sand blowing cofferdam |
| CN204080734U (en) * | 2014-09-04 | 2015-01-07 | 李丽华 | The cofferdam of a kind of geotextile tube bag and formation thereof or dykes and dams |
| CN104831688A (en) * | 2015-05-14 | 2015-08-12 | 广西梧州运龙港船机械制造有限公司 | Method for cofferdam construction |
| CN104846835A (en) * | 2015-04-30 | 2015-08-19 | 张卓 | Method of paving cofferdam with sand-filled bags |
| CN105421292A (en) * | 2015-12-24 | 2016-03-23 | 天津大学 | Temporary water-retaining dam built through geotextile filling bags and steel frame supporting systems |
| CN106801424A (en) * | 2017-01-18 | 2017-06-06 | 杭州天顺市政园林工程有限公司 | A kind of cofferdam construction method |
| CN107100174A (en) * | 2017-04-26 | 2017-08-29 | 中国水利水电科学研究院 | A kind of design method of earthwork fabric-filled sand pocket |
-
2017
- 2017-09-09 CN CN201710810361.6A patent/CN107675717A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203188224U (en) * | 2013-03-15 | 2013-09-11 | 浙江省交通工程建设集团有限公司 | Geomembrane bag sand blowing cofferdam |
| CN204080734U (en) * | 2014-09-04 | 2015-01-07 | 李丽华 | The cofferdam of a kind of geotextile tube bag and formation thereof or dykes and dams |
| CN104846835A (en) * | 2015-04-30 | 2015-08-19 | 张卓 | Method of paving cofferdam with sand-filled bags |
| CN104831688A (en) * | 2015-05-14 | 2015-08-12 | 广西梧州运龙港船机械制造有限公司 | Method for cofferdam construction |
| CN105421292A (en) * | 2015-12-24 | 2016-03-23 | 天津大学 | Temporary water-retaining dam built through geotextile filling bags and steel frame supporting systems |
| CN106801424A (en) * | 2017-01-18 | 2017-06-06 | 杭州天顺市政园林工程有限公司 | A kind of cofferdam construction method |
| CN107100174A (en) * | 2017-04-26 | 2017-08-29 | 中国水利水电科学研究院 | A kind of design method of earthwork fabric-filled sand pocket |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022764A (en) * | 2019-12-29 | 2020-04-17 | 中铁五局集团第二工程有限责任公司 | Dry construction method for water diversion pipe water-land adapter |
| CN111022764B (en) * | 2019-12-29 | 2021-07-20 | 中铁五局集团第二工程有限责任公司 | Dry construction method for water diversion pipe water-land adapter |
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Application publication date: 20180209 |
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