CN102493396A - Construction method of backfill in layers for sea reclamation - Google Patents
Construction method of backfill in layers for sea reclamation Download PDFInfo
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- CN102493396A CN102493396A CN2011103729113A CN201110372911A CN102493396A CN 102493396 A CN102493396 A CN 102493396A CN 2011103729113 A CN2011103729113 A CN 2011103729113A CN 201110372911 A CN201110372911 A CN 201110372911A CN 102493396 A CN102493396 A CN 102493396A
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Abstract
The invention provides a construction method of backfill in layers for sea reclamation, which includes the steps: selecting shipborne machines; setting a middle cofferdam; distributing pipelines and backfill pipe openings; setting drain openings; backfilling; and draining water. The construction method has the advantages that in the process of backfill in layers, muddy clay is dug and backfilled to a lower layer of a reclamation area, and high water permeability soil such as powered clay, silt, mealy sand and the like in the lower layer are dug and evenly backfilled to the upper layer of the reclamation layer to form a soil layer 1.0-1.5m in thickness; after backfilling is complete, surface ponding is organically drained, surface soil 1.0-1.5m in thickness is high in bearing capacity and forms highly durable service bedding, and good foundation is laid for subsequent construction of a soft foundation. The process of backfill in layers has evident advantages in terms of construction period, quality, cost, safety and the like, and deep dug portions are beneficial to construction of deepwater channels according to the requirement of layered soil obtaining, or the deep dug portions serve as preserved depth for sedimentation for the channels, so that subsequent maintenance cost of the channels is reduced. Therefore, the problem that human, machine and material internal operation in construction of ultra-soft foundations cannot be realized is solved.
Description
Technical field
The present invention relates to the method for reclaiming land around sea, the mud job practices is blown in particularly a kind of reclaiming land around sea layering.The present invention proposes layering hydraulic reclamation technology; The formation of deep layer powder fine sand hydraulic reclamation to top layer is had the working lining than high-bearing capacity,, significantly reduced construction costs for follow-up treatment of soft foundation provides good condition; Shortened the duration, for similar hydraulic reclamation epeirogenetic engineering provides helpful reference.
Background technology
Reclaiming land around sea adopts and conventionally to blow the bricklayer and plant the land that forms because the water content of soil is high, the top layer bearing capacity is extremely low, is difficult to carry out immediately the deep layer consolidation process, can not be unfavorable for bringing into play as early as possible returns of investment geology as early as possible for project construction provides available land.According to data ,-12.0～-more than the 14.0m absolute altitude, for stream is moulded the shape silt clay, as all taking the native hydraulic reclamation epeirogenetic of this layer, the difficulty that follow-up treatment of soft foundation is carried out is very big.And-12.0～-below the 14.0m absolute altitude, be distributed with the stronger soil of water permeability such as silty clay, silt, flour sand successively, be suitable for hydraulic reclamation epeirogenetic.
After the traditional handicraft hydraulic reclamation finished, the table water that at first will carry out 2～6 months was got rid of, and takes two kinds of ways could possess the required bearing capacity of treatment of soft foundation as early as possible again.
First kind of way is to lay braided geotextile+laying chaste tree basketry or bamboo basketry on the barged-in fill surface, adds and lays geotextiles and the thick sandy soil of hydraulic reclamation 80～100cm, forms the working cushion layer with certain bearing capacity; 70～80 yuan of every square metre of increase expenses, its construction quality also be difficult to guarantee, the duration is influenced by the sandy soil supply to be difficult to confirm; With regard to Binhai New District; Sandy soil is mainly shipped by Cao Feidian, and protection of material feeding seedbed and marine transportation security implication are big, are difficult to guarantee supply.
Second kind of way is to adopt the manual work of shallow-layer vacuum method to re-pack, and the certain thickness saturated dredger soft soil in top layer is reinforced in advance, makes it possess the ability of carrying the deep level of processing construction machinery, and every square metre increases by 60～70 yuan of costs, and the duration increases by 2～3 months.These two kinds of ways are removed long in time limit, and outside the cost height, potential safety hazard is also more, and the constructor possibly embog and cause danger, and sandy soil cargo ship major part is a riverboat, and anti-marine stormy waves performance is low, and ship is ruined people's accident of dying and taken place again and again.
Summary of the invention
For solving the problem that exists in above-mentioned duration and the technology, the purpose of this invention is to provide a kind of reclaiming land around sea layering and blow the mud job practices, help accelerating construction progress, reduce construction costs, security reliability is strong.
For realizing above-mentioned purpose; The technical scheme that the present invention adopts provides a kind of reclaiming land around sea layering and blows the mud job practices; Be provided with in middle part, hydraulic reclamation district in one at a distance from low bank between fields with hydraulic reclamation divide into equal-sized south, two districts, north organize layering flowing water hydraulic reclamation respectively, the South Area is from east to west, the North Area carries out hydraulic reclamation from west to east; This job practices may further comprise the steps:
(1) the ship machine is selected: adopt 3500m
3/ h-4500m
3The cutter suction dredger of/h requires said dredge boat to dig deeply and must reach more than the 24m;
(2) separated low bank between fields setting in: in the setting of middle part, hydraulic reclamation district, adopt debris from demolition or clay to fill low bank between fields top width 7.0m, the high 6.00m of low bank between fields top mark at a distance from low bank between fields;
(3) pipeline and the hydraulic reclamation mouth of pipe are arranged: mud delivery pipeline is that dredge boat is carried the pipe-line of sand mud in the hydraulic reclamation district, every pipeline mark standard length 6m-12m, and pipeline employing flange, high-strength bolt connect; Embankment is laid around the said hydraulic reclamation district, pipeline edge; The hydraulic reclamation mouth of pipe is provided with respectively according to the difference of hydraulic reclamation shale, first blowing-filling sludge matter clay, and hydraulic reclamation mouth of pipe spacing is 200m; After blowing-filling sludge matter clay reaches preset absolute altitude, hydraulic reclamation silt or silt again, hydraulic reclamation mouth of pipe spacing is 80m, guarantees that hydraulic reclamation silt or silt can be covered on the silt clay uniformly, the hydraulic reclamation mouth of pipe is connected with mud delivery pipeline employing threeway;
(4) discharge opening setting: at a distance from Nian Xi end first discharge opening (1) is set, the laitance of being convenient to the South Area enters Bei Chi smoothly and continues deposition; Second discharge opening (1) is arranged on the North Area and depends on Dong Di, and South Area elder generation hydraulic reclamation is become land, can prevent the loss of hydraulic reclamation mud effectively;
(5) hydraulic reclamation: carry out blowing-filling sludge matter clay by conventional hydraulic reclamation program, hydraulic reclamation is to preset mud face absolute altitude, and a gutter is established through first discharge opening (1) and at Dong Di, the every separated 100-120m of Nan Di in the South Area; A gutter is established through second discharge opening (1) and at the every separated 100-120m of Dong Di in the North Area, carries out the draining and the draining of topsoil, treats that the topsoil moisture content in the hydraulic reclamation district is lower than 85%, and severe is greater than 14KN/m
3The time, taking again-silt or silt below the 13.5m, hydraulic reclamation covers on the topsoil surface layer of draining, and hydraulic reclamation thickness is 1.0m～1.5m;
(6) draining: after hydraulic reclamation finishes; Take hydraulic reclamation district surface water to be got rid of, arrange the South Area certainly, whenever establish a gutter at a distance from 100-120m through at Dong Di, Nan Di from the mode of row or forced-ventilated water; The North Area is passed through at Dong Di; Every separated 100-120m establishes a gutter, in the hydraulic reclamation district, digs the open drain, and ponding is discharged outside the hydraulic reclamation district; Can't adopt suction pump that water is discharged outside the hydraulic reclamation district through arranging the low-lying water of mode certainly for the part, the draining airing be carried out the yellow ground cushion construction after 7-15 days, and the yellow ground cushion construction adopts artificial small handcart to push away and fill out, smooth, laying depth 30cm; After sand cushion was smooth, last pile driver carried out the construction that sets of band drain.
Effect of the present invention is to adopt layering hydraulic reclamation technology; Take the lower floor of silt clay hydraulic reclamation earlier to the epeirogenetic district; Take again the stronger soil of water permeabilitys such as lower floor's silty clay, silt, flour sand equably hydraulic reclamation upper strata 1.0～1.5m is thick in the epeirogenetic district, after blowing mud and finishing, in an organized way surface area water is got rid of; The soil that top layer 1.0～1.5m is thick will have higher capacity, for follow-up construction of soft soil treatment is laid good basis.By contrast; Layering hydraulic reclamation technology is conspicuous in the advantage of duration, quality, cost, security and various aspects; And owing to layering is fetched earth and needed to deep-cut part and help building deep water fairway, or reduce later stage channel maintenance expense as the allowance for sedimentation of the reservation in navigation channel.
Description of drawings
Fig. 1 is a hydraulic reclamation plane figure structure chart of the present invention.
Among the figure:
1, discharge opening 3, blow mud mouth 4, at a distance from low bank between fields
The specific embodiment
In conjunction with accompanying drawing and instance the mud job practices being blown in reclaiming land around sea layering of the present invention explains.
The mud job practices is blown in reclaiming land around sea layering provided by the invention, be provided with in middle part, hydraulic reclamation district in one at a distance from low bank between fields with hydraulic reclamation divide into equal-sized south, two districts, north organize layering flowing water hydraulic reclamation respectively, the South Area is from east to west, the North Area carries out hydraulic reclamation from west to east; This job practices may further comprise the steps:
1, construction technology process
Subregion is stayed the position → subregion flowing water hydraulic reclamation first floor → subregion flowing water hydraulic reclamation second layer → table water eliminating → end at a distance from low bank between fields construction → discharge opening setting → dredging tube laying → dredge boat
2, the hydraulic reclamation subregion and the flow direction
The hydraulic reclamation district of this job practices is a square, be provided with in the middle part in the East and West direction at a distance from low bank between fields 4, in adopt debris from demolitions or clay to fill low bank between fields top width 7.0m, the high 6.00m of low bank between fields top mark at a distance from low bank between fields 4.Hydraulic reclamation is divided into (N) two districts, north, equal-sized south (S) organize layering flowing water hydraulic reclamation, the discharge opening of South Area is arranged on separation levee west end, and the North Area discharge opening is total discharge opening, is located at eastern dike the North, and hydraulic reclamation is S in proper order
Down→ N
Down→ S
On→ N
On, horizontal hydraulic reclamation flows to and is S
East→ S
The west→ N
The west→ N
EastThis arrangement has following advantage:
1) square hydraulic reclamation district is converted into strip, the stream of hydraulic reclamation mud is apart from significantly increasing, and corresponding increase greatly of sedimentation time can reduce loss, improves hydraulic reclamation efficient;
2) help organizing the flowing water construction, the vacuum preloading construction for next step provides the scope of operation in advance;
3) shortened and blown the mud mouth, can make hydraulic reclamation mud be distributed to the hydraulic reclamation district comparatively equably to the distance of blowing the mud district center;
4) before the hydraulic reclamation second layer, reserved certain sedimentation time, helped the gain in strength of first floor mud, laid the foundation, can guarantee to realize the layering target for carrying second layer mud for the first floor barged-in fill;
5) help in order the top layer mud scum being arrived in the far-end discharge opening, extrude the hydraulic reclamation district in case of necessity.
3, pipe line arrangement
Mud delivery pipeline is that dredge boat is carried the pipe-line of sand mud in the hydraulic reclamation district, all adopts the high-quality steel pipe, and diameter is specifications such as 750mm, 800mm, every steel pipe full-length 6m-12m, and steel pipe employing flange, high-strength bolt connect.Steel pipe along the hydraulic reclamation district around embankment lay.The spacing of the mouth of pipe is confirmed as 80m, can guarantee that silt or silt can be covered on the silt clay uniformly.
This job practices adopts two large-scale cutter suction dredgers to bear hydraulic reclamation and takes care of; It is strong that large-scale dredge boat has a capacity of anti-storm; Safe characteristics; Its higher main engine power can guarantee that the dredging tube mouth has enough pressure and flow velocity when far away array pitch, makes hydraulic reclamation mud can reach the precalculated position, has guaranteed that the shale in whole hydraulic reclamation district meets the requirements and evenly distributes.Selecting one is cutter suction dredger 3500m
3/ h, another is cutter suction dredger 4500m
3/ h, requiring said dredge boat to dig deeply must reach more than the 24m.Article two, cutter suction dredger; Therefore lay two mud delivery pipelines, for guaranteeing the navigation of regional boats and ships, mud delivery pipeline adopts the immersed tube mode to lay beyond getting the mud district at sea; The bank pipe is arranged on the hydraulic reclamation district embankment; Artificial cooperative mechanical is set up, and adopts rubber tube to flexibly connect, and promptly with rubber tube floating pipe is connected as arc with the bank pipe.
Subaqueous pipe is laid: adopt the assembling mode of 3+1, promptly three joint steel pipes add a joint sebific duct connection.When subaqueous pipe is arranged,, and establish cursory the caution in mud delivery pipeline laying place as far as possible with its heavy putting to the bottom.
Pipe waterborne is laid: adopt the assembling mode of 1+1, promptly a joint steel pipe adds a joint sebific duct connection, is connected with floating drum again.After the mud delivery pipeline base installs, be connected with the land and water joint through water transportation to job site.
The bank pipe is laid: during the hydraulic reclamation of South Area, main mud delivery pipeline Yan Nandi with in lay at a distance from low bank between fields; During the North Area hydraulic reclamation, main mud delivery pipeline along at a distance from low bank between fields and Bei Di laying; Every separated 200m establishes one of arm, and during hydraulic reclamation, spoil disposal props up the mouth of pipe and is not less than 30m from the embankment distance, avoids exporting directly washing away embankment of mud.
4, the hydraulic reclamation mouth of pipe is provided with
All from the disembarkation of the southeast corner in hydraulic reclamation district, Yan Nandi and middle separation levee are laid the hydraulic reclamation that carries out Nan Di completely to dredging tube respectively then, and southern dike pipeline moved on to Bei Di and carries out the North Area hydraulic reclamation after the South Area hydraulic reclamation was accomplished.The size of the hydraulic reclamation mouth of pipe 3 spacings is relevant with the factors such as dredge pump power, hydraulic reclamation district landform and hydraulic reclamation soil property of strand suction ship.
During blowing-filling sludge matter clay, its soil property particle is thin, density is less, the sedimentation time is longer, and blowing the spacing of confirming its hydraulic reclamation mouth of pipe according to code requirement and on-the-spot examination is 200m; When hydraulic reclamation silt or silt; Relatively its soil property particle of silt clay is thick, density is big, the sedimentation time reduces relatively; The hydraulic reclamation influence basin is less, the spacing of its hydraulic reclamation mouth of pipe is confirmed as 80m can guarantee that silt or silt can be covered on the silt clay uniformly.Establish three at the Dong Di south, centre and the North during the South Area hydraulic reclamation and blow the mud mouth, the hydraulic reclamation mouth of pipe adopts threeway to be connected with mud delivery pipeline.At first from Dong Di hydraulic reclamation westwards; After east mud face absolute altitude reaches requirement, the hydraulic reclamation mouth is moved to Nan Di and separation levee relevant position, the strict control hydraulic reclamation mouth of pipe is by opening in order from east to west; Mud scum is pressed to west end and outfall position as far as possible; Prevent mud scum nest collection in the hydraulic reclamation district, last Nan Dixi end is established a hydraulic reclamation mouth, and mud scum all is extruded into the North Area.The North Area hydraulic reclamation is reversed according to the mode of South Area, and what of mud scum amount are definite with distribution near the dike discharge opening of backsight east, are to extrude the hydraulic reclamation district or take other treatment measures.
5, hydraulic reclamation
Carry out blowing-filling sludge matter clay by conventional hydraulic reclamation program; Hydraulic reclamation is to preset mud face absolute altitude; A gutter is mainly established through first discharge opening 1 and at Dong Di, the every separated 100-120m of Nan Di in the South Area, and a gutter is whenever established at a distance from 100-120m through second discharge opening 1 and at Dong Di in the North Area, carries out the draining and the draining of topsoil; Treat that the topsoil moisture content in the hydraulic reclamation district is lower than 85%, severe is greater than 14KN/m
3The time, taking again-silt or silt below the 13.5m, hydraulic reclamation covers on the draining topsoil surface layer, and hydraulic reclamation thickness is 1.0m～1.5m.
Two districts, hydraulic reclamation branch north and south successively carry out, and two-layer blowing to design elevation divided equally in each district, first floor to+4.5 absolute altitudes, the second layer to+5.5m absolute altitude.Carry out the South Area hydraulic reclamation earlier, two relative arms opening the east earlier carry out spoil disposal, to the influence area mud face absolute altitude reach+4.5 after; Close this to arm; Open the adjacent a pair of arm in west side and continue spoil disposal, open, close hydraulic reclamation arm to local area from east to west in order by this and all reach+4.5 absolute altitudes, then according to said method adjust successively from east to west once more the spoil disposal arm unlatching, close hydraulic reclamation extremely+the 5.5m absolute altitude; Guarantee every layer of hydraulic reclamation uniform soil quality, the surface is smooth basically.By above method from west to east in order layering accomplish the hydraulic reclamation of North Area.
The control of layering absolute altitude
1) the hydraulic reclamation absolute altitude and the absolute altitude of dredging
This job practices design hydraulic reclamation absolute altitude is controlled to be+5.5m; For the bearing capacity of guaranteeing surface soil satisfies the requirement of mechanical work, control first floor hydraulic reclamation absolute altitude is decided to be 4.5m, and the hydraulic reclamation shale is a silt clay; Second layer absolute altitude is decided to be+5.8m; Reserve drainage subsidence 0.3m, the hydraulic reclamation shale is silty clay, silt, flour sand, and hydraulic reclamation embankment absolute altitude is controlled to be and is not less than+6.5m.
2) absolute altitude of dredging
First floor digs the top board absolute altitude to silty clay, silt, and the second layer digs down a layer silty clay, silt, flour sand, can guarantee that hydraulic reclamation district upper strata soil property has water permeability, meets the requirements of bearing capacity after table water is got rid of.Adapt with the hydraulic reclamation absolute altitude, absolute altitude is+3.5m at the bottom of the separation levee discharge opening, and absolute altitude is+3.0m at the bottom of total discharge opening.
6, table water is got rid of behind the hydraulic reclamation
After hydraulic reclamation finishes, carry out the growth that the top layer draining can promote the topsoil bearing capacity rapidly, take surface water to be got rid of from the mode of row or forced-ventilated water, at a distance from the Nian Xi end first discharge opening 1 is set, the laitance of being convenient to the South Area enters Bei Chi smoothly and continues deposition; Second discharge opening 1 is arranged on North Area Dong Di, and South Area elder generation hydraulic reclamation is become land, can prevent the loss of hydraulic reclamation mud effectively.Through establishing a gutter at Dong Di, the every separated 100-120m of Nan Di, the North Area is dug the open drain and has been accelerated drainage speed through establishing a gutter at the every separated 100-120m of Dong Di in the hydraulic reclamation district, ponding is discharged outside the hydraulic reclamation district, and ponding is drained into the sea from the row South Area.Can't adopt suction pump that water is discharged outside the hydraulic reclamation district through arranging the low-lying water of mode certainly for the part.The hydraulic reclamation district of draining airing after 7-15 days can above excavator, the operation of fortune sand spoil car, can carry out the yellow ground cushion construction, and the yellow ground cushion construction adopts the small handcart manual work to push away and fill out, smooth, laying depth 30cm; After sand cushion was smooth, last pile driver carried out the construction that sets of band drain.
Distribution of strata rule through the research Binhai New District can know that-14m absolute altitude place begins to occur fine sand layer and distributes, fine sand layer widespread distribution under the-20m absolute altitude; In dredge boat today to large scale development; Effectively dig dark, blow distance and production efficiency all improves greatly, the Binhai New Area in Tianjin project of reclaiming fields from the sea is all had ready conditions and is adopted layering hydraulic reclamation technology, the successful Application of this technology in Nan Gang industrial occupancy Dong Wu district epeirogenetic engineering; Be the Binhai New Area in Tianjin fast development; To the strategic point, ocean better selection is provided,, has brought the huge social economic benefit the development process that greatly promotes Binhai New District.
Claims (1)
1. layering dredge fill method in the reclaiming land around sea engineering, be provided with in middle part, hydraulic reclamation district in one at a distance from low bank between fields with hydraulic reclamation divide into equal-sized south, two districts, north organize layering flowing water hydraulic reclamation respectively, the South Area is from east to west, the North Area carries out hydraulic reclamation from west to east; This method may further comprise the steps:
(1) the ship machine is selected: adopt 3500m
3/ h-4500m
3The cutter suction dredger of/h requires said dredge boat to dig deeply and must reach more than the 24m;
(2) separated low bank between fields setting in: in the setting of middle part, hydraulic reclamation district, adopt debris from demolition or clay to fill low bank between fields top width 7.0m, the high 6.00m of low bank between fields top mark at a distance from low bank between fields;
(3) pipeline and the hydraulic reclamation mouth of pipe are arranged: mud delivery pipeline is that dredge boat is carried the pipe-line of sand mud in the hydraulic reclamation district, every pipeline mark standard length 6m-12m, and pipeline employing flange, high-strength bolt connect; Embankment is laid around the said hydraulic reclamation district, pipeline edge; The hydraulic reclamation mouth of pipe is provided with respectively according to the difference of hydraulic reclamation shale, first blowing-filling sludge matter clay, and hydraulic reclamation mouth of pipe spacing is 200m; After blowing-filling sludge matter clay reaches preset absolute altitude, hydraulic reclamation silt or silt again, hydraulic reclamation mouth of pipe spacing is 80m, guarantees that hydraulic reclamation silt or silt can be covered on the silt clay uniformly, the hydraulic reclamation mouth of pipe is connected with mud delivery pipeline employing threeway;
(4) discharge opening setting: at a distance from Nian Xi end first discharge opening (1) is set, the laitance of being convenient to the South Area enters Bei Chi smoothly and continues deposition; Second discharge opening (1) is arranged on the North Area and depends on Dong Di, and South Area elder generation hydraulic reclamation is become land, can prevent the loss of hydraulic reclamation mud effectively;
(5) hydraulic reclamation: carry out blowing-filling sludge matter clay by conventional hydraulic reclamation program, hydraulic reclamation is to preset mud face absolute altitude, and a gutter is established through first discharge opening (1) and at Dong Di, the every separated 100-120m of Nan Di in the South Area; A gutter is established through second discharge opening (1) and at the every separated 100-120m of Dong Di in the North Area, carries out the draining and the draining of topsoil, treats that the topsoil moisture content in the hydraulic reclamation district is lower than 85%, and severe is greater than 14KN/m
3The time, taking again-silt or silt below the 13.5m, hydraulic reclamation covers on the topsoil surface layer of draining, and hydraulic reclamation thickness is 1.0m～1.5m;
(6) draining: after hydraulic reclamation finishes; Take hydraulic reclamation district surface water to be got rid of, arrange the South Area certainly, whenever establish a gutter at a distance from 100-120m through at Dong Di, Nan Di from the mode of row or forced-ventilated water; The North Area is passed through at Dong Di; Every separated 100-120m establishes a gutter, in the hydraulic reclamation district, digs the open drain, and ponding is discharged outside the hydraulic reclamation district; Can't adopt suction pump that water is discharged outside the hydraulic reclamation district through arranging the low-lying water of mode certainly for the part, the draining airing be carried out the yellow ground cushion construction after 7-15 days, and the yellow ground cushion construction adopts artificial small handcart to push away and fill out, smooth, laying depth 30cm; After sand cushion was smooth, last pile driver carried out the construction that sets of band drain.
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| CN2011103729113A CN102493396A (en) | 2011-11-22 | 2011-11-22 | Construction method of backfill in layers for sea reclamation |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846787A (en) * | 2015-04-01 | 2015-08-19 | 广西建工集团第五建筑工程有限责任公司 | Construction method for carrying out sand-blowing sea-filling land-making in shallow sea area by using cutter suction dredger |
| CN105862676A (en) * | 2015-09-24 | 2016-08-17 | 中交天航港湾建设工程有限公司 | Blow-filling method and structure for controlling difference elevation of mud surface after treatment and unloading of soft foundation |
| CN106338271A (en) * | 2015-07-14 | 2017-01-18 | 宁波上航测绘有限公司 | Large-area mud surface elevation measuring method |
| CN106836181A (en) * | 2017-01-12 | 2017-06-13 | 中交天航南方交通建设有限公司 | A kind of filling out to go along with sb. to guard him and synchronous carry out construction method for dredge fill |
| CN109137943A (en) * | 2018-08-28 | 2019-01-04 | 中交上海航道局有限公司 | A kind of earthwork filling construction technique of Perioperative cardiac events |
| CN114855763A (en) * | 2022-06-09 | 2022-08-05 | 中交天津航道局有限公司 | Reverse hydraulic reclamation method for quickly discharging silt in sand-muddy silt soil |
| WO2023231570A1 (en) * | 2022-06-02 | 2023-12-07 | 中交疏浚技术装备国家工程研究中心有限公司 | Indoor simulation apparatus for mobile underwater layered hydraulic-fill construction |
-
2011
- 2011-11-22 CN CN2011103729113A patent/CN102493396A/en active Pending
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| Title |
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| 宋照尚等: "《中国交通建设股份有限公司2010年现场技术交流会论文集》", 19 August 2011 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846787A (en) * | 2015-04-01 | 2015-08-19 | 广西建工集团第五建筑工程有限责任公司 | Construction method for carrying out sand-blowing sea-filling land-making in shallow sea area by using cutter suction dredger |
| CN106338271A (en) * | 2015-07-14 | 2017-01-18 | 宁波上航测绘有限公司 | Large-area mud surface elevation measuring method |
| CN106338271B (en) * | 2015-07-14 | 2018-08-28 | 宁波上航测绘有限公司 | A kind of large area mud face level measurement method |
| CN105862676A (en) * | 2015-09-24 | 2016-08-17 | 中交天航港湾建设工程有限公司 | Blow-filling method and structure for controlling difference elevation of mud surface after treatment and unloading of soft foundation |
| CN106836181A (en) * | 2017-01-12 | 2017-06-13 | 中交天航南方交通建设有限公司 | A kind of filling out to go along with sb. to guard him and synchronous carry out construction method for dredge fill |
| CN109137943A (en) * | 2018-08-28 | 2019-01-04 | 中交上海航道局有限公司 | A kind of earthwork filling construction technique of Perioperative cardiac events |
| WO2023231570A1 (en) * | 2022-06-02 | 2023-12-07 | 中交疏浚技术装备国家工程研究中心有限公司 | Indoor simulation apparatus for mobile underwater layered hydraulic-fill construction |
| CN114855763A (en) * | 2022-06-09 | 2022-08-05 | 中交天津航道局有限公司 | Reverse hydraulic reclamation method for quickly discharging silt in sand-muddy silt soil |
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Application publication date: 20120613 |