CN107100137A - The integrated antiseepage processing method of hamburger type dyke - Google Patents
The integrated antiseepage processing method of hamburger type dyke Download PDFInfo
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- CN107100137A CN107100137A CN201710373654.2A CN201710373654A CN107100137A CN 107100137 A CN107100137 A CN 107100137A CN 201710373654 A CN201710373654 A CN 201710373654A CN 107100137 A CN107100137 A CN 107100137A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- General Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Ocean & Marine Engineering (AREA)
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- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
A kind of integrated antiseepage processing method of hamburger type dyke, it is characterized in that it comprises the following steps：First, surveying setting-out positioning is moved towards along cut-pff wall, it is determined that grouting hole site；Secondly, all unwrapping wire holes are drilled to set depth using rig, concrete layer is passed through using rig, form pilot hole；3rd, into the pilot hole at interval of at least two, cement injection loess is starched repeatedly, untill occurring returning slurry；4th, after after grouting pilot hole solidification, led with remaining first hole and carry out high-pressure rotary-spray construction in the lump, high-pressure whirl jet man-hour should carry out every hole and the pilot hole aperture that wouldn't be constructed is blocked, after carrying out moving hole operation again after the high-pressure rotary jet grouting pile solidification in adjacent pilot hole, until all pilot hole high-pressure rotary-spray constructions terminate；High-pressure rotary jet grouting pile on all same straight lines is connected to one of cut-pff wall.The present invention has speed of application fast, and the cycle is short, and small advantage is influenceed by construction site.
Description
Technical field
The present invention relates to a kind of river dyke seepage control technique, especially a kind of complicated geological（Containing reinforced concrete floor）Dykes and dams
Preventing and treating wall build technology, specifically a kind of integrated antiseepage processing method of hamburger type dyke.
Background technology
Certain urban district river dike levee body situation is respectively from top to bottom：▽ 12.0-11.7m are levee crown concrete road surface；▽11.7-
9.0m is cohesive soil containing rubble, containing a small amount of building waste, the general 20-50mm of ballast grain sizes, individually more than 50mm；▽9.0-7.0m
May be structures for concrete layer, core saves long 5-15cm into chunky shape, short cylinder；▽ 7.0-4.5m are containing rubble viscosity
Soil；Below ▽ 4.5m are undisturbed soil, therefore, and the dyke bankets likeness in form " hamburger ", and its permeability reaches medium~highly permeable, 2016
Infiltration dangerous situation occurs for flood season in year, the Duan Jiangdi need to be rebuild or Anti-seeping technology before flood in 2017.Because of this section of Jiang Dibeishui
Duo Jia enterprises and institutions are arranged along side, if rebuilding Jiang Di, previous work amount is big, it is difficult to completed in a non-flood period, therefore
Need the dangerous processing that first disappears to Duan Jiangdi progress antiseepages.
The common antiseepage dangerous processing method that disappears has domatic antiseepage and levee body before dike（Levee crown）Before vertical seepage control, the Duan Jiangdi dikes
（Before anti-flood wall）For Jiang Tan and the woods, there are the wide pavements near a river of 2.5m at ▽ 9.0m, local beach has pitched work or sees Jiang Pingtai
（There is pile foundation）, do not possess the condition of domatic Anti-seeping technology before dike, therefore take levee crown vertical seepage control method.
Consider that the Duan Jiangdi is more important positioned at city, therefore need to be using front and rear twice cut-pff wall scheme.Vertical seepage control build
Formula typically has two kinds of concrete cut and impervious cement-earth wall.Current experience is ripe and mainly has with more method：Hang down
Antiseepage curtain wall, the jetting that straight paving modeling method is built based on plastic film make channel process construction concrete cut, grab chute forming method and build thin
Wall plastic concrete cut-off wall, vibration dip mould mortar antiseepage board wall, compound cement cut-pff wall is built in high-pressure injection, shake hole grooving
Height spray builds compound cement cut-pff wall, multi-drill small-diameter deep-layer mixing pile method and builds compound cement cut-pff wall etc..Except routine
Outside adaptability, technique work efficiency and cost factor, vibration dip mould etc. is into wall technique, and pressure or oscillatory load are big, and anti-flood wall is influenceed
Greatly；The vertical channel such as diaphram wall scheme damages larger to dyke；And deep-mixed pile, high-pressure rotary jet grouting pile cost are moderate, matter
Amount controls and detects more convenient.
Banketed situation according to Jiang Di, fill out glutinous, it is necessary to first excavate to abolish concrete and change again according to deep-mixed pile cut-pff wall
Soil, deep-mixed pile of then constructing, it is considered to which concrete layer buried depth is big, the mechanical vibration effect anti-flood wall safety of forcible entry, therefore use high
Pressure rotary-spraying stake cut-pff wall pattern.Banketed according to levee body from the point of view of situation, if in the absence of concrete slab sandwich of layers, interior loose fill and miscellaneous
Matter etc. is unfavorable for into wall；Simultaneously there is the thick concrete sandwich layers of 2m in levee body bottom, and high-pressure rotary-spray machinery is unable to one-step pore-creating.For
More preferable guarantee quality of wall, the engineering is prevented using the synthesis of " draw hole in advance, advance grouting finally implements high-pressure rotary jet grouting pile "
Ooze processing method.
The content of the invention
The purpose of the present invention is there is difficulty of construction greatly for existing hamburger type dyke, does not utilize heavy mechanical equipment to apply
The problem of work, invent a kind of integrated antiseepage processing method of the hamburger type dyke of churning after first guiding.
The technical scheme is that：
A kind of integrated antiseepage processing method of hamburger type dyke, it is characterized in that it comprises the following steps：
First, surveying setting-out positioning is moved towards along cut-pff wall, it is determined that grouting hole site；
Secondly, all unwrapping wire holes are drilled to set depth using rig, concrete layer is passed through using rig, form guide
Hole；
3rd, into the pilot hole at interval of at least two, cement injection loess is starched repeatedly, untill occurring returning slurry；
4th, after after grouting pilot hole solidification, led with remaining first hole and carry out high-pressure rotary-spray construction in the lump, high-pressure whirl jet man-hour should
Carried out every hole and the pilot hole aperture that wouldn't be constructed is blocked, moved again after after the high-pressure rotary jet grouting pile solidification in adjacent pilot hole
Hole operation, until all pilot hole high-pressure rotary-spray constructions terminate；High-pressure rotary jet grouting pile on all same straight lines is connected to anti-together
Ooze wall.
Described Cement Loess slurry grouting is made up of 15% cement and 85% loess.
The quantity of described cut-pff wall is two roads, is divided into meet water side cut-pff wall and land side mine dam, twice cut-pff wall is applied
Work method is identical, can construct simultaneously, can also separate and construct, two 1.5 meters of road cut-pff wall intervals, the side cut-pff wall that meets water is controlled flood away from forward position
Wall hallux is no less than 2 meters.
0.6 meter of described Pile of High-pressure Spiral Jet footpath, 0.44 meter of pilespacing, 0.4 meter of the thickness of cut-pff wall.
Subsectin bottler method is used when described cement injection loess is starched, from the bottom to top, setting of casing subsectin bottler, segment length 5
~10 meters；First most bottom section is in the milk, when grouting reaches design requirement, 5~10 meters of sleeve pipe is lifted, then carries out the preceding paragraph
Grouting, until hole grouting terminates；Grouting starts first to use thin pulp, if increasing slip consistency aperture pressure again after 3~5min
Decline and negative pressure occur in Grouting Pipe, slurry consistency should be increased again, the unit weight of slurries should be controlled in grouting by technical requirement on design,
How multiple method should be filled using few；When slurries rise to aperture, when no longer eating slurry through continuously filling 3 times again, or grout hole grouting
Amount, grouting orifice pressure reach design requirement, terminate grouting.
The slurries of described high-pressure rotary-spray construction are 42.5 grades of Portland cements.
The grouting pressure of described high-pressure rotary-spray construction is meet water lateral pressure 25MPa, backwater lateral pressure 28Mpa, and meet water side
Lift speed 20cm/min；Land side lifting speed 10cm/min.
The pilot hole of described cement injection loess slurry should carry out high-pressure rotary-spray construction again after grouting construction terminates 7 days.
Beneficial effects of the present invention：
1st, construction speed is fast
Using the integrated antiseepage processing method of " drawing hole in advance, advance grouting finally implements high-pressure rotary jet grouting pile ", high-pressure rotary jet grouting pile day
Drilling depth is accelerated up to 800m/d, project progress.
2nd, quality is guaranteed
Testing result shows that high-pressure rotary jet grouting pile pile body compression strength, cut-pff wall antiseepage coefficient can meet requirement.
3rd, do not restricted by small space
Urban land demand is urgent, early on the outside of general dyke toe to there is Liao Ge enterprises and institutions, city different from suburb dyke
In area's dike seepage control processing, general work face is small, and large scale equipment is difficult to be applicable, and this method is not influenceed by narrow and small working face.
4th, native do not influenceed by concrete-miscellaneous fill is sandwich
Urban dyke because history alternate, repeatedly it is formal or it is informal rebuild, dyke bankets also relative complex.For existing
Concrete-miscellaneous fill, the dyke of similar " hamburger " formula, while being unsatisfactory for reconstruction condition again, is carried out at antiseepage using this method
Reason is suitable.
5th, to existing anti-flood wall safety without big influence
In Anti-seeping technology project implementing process, protect existing flood control installation be undoubtedly it is critically important arrive, this method is using smaller
Equipment, the vibration of generation is small, to existing anti-flood wall safety without big influence.
Brief description of the drawings
Fig. 1 is the construction process schematic diagram of the present invention.
Fig. 2 is the levee construction plan of the present invention.
Fig. 3 is the dyke sectional drawing after present invention construction terminates.
In figure：
1. pavement near a river；
2. pilot hole（Early stage implements advance grouting, and the later stage implements high-pressure rotary jet grouting pile）；
3. high-pressure rotary jet grouting pile；
4. cut-pff wall axis；
5. existing anti-flood wall；
6. levee crown road.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As Figure 1-3.
A kind of integrated antiseepage processing method of hamburger type dyke, it comprises the following steps：
First, surveying setting-out positioning is moved towards along cut-pff wall, it is determined that grouting hole site；
Secondly, all unwrapping wire holes are drilled to set depth using rig, concrete layer is passed through using rig, form guide
Hole；
3rd, into the pilot hole at interval of at least two, cement injection loess is starched repeatedly, untill occurring returning slurry；
4th, after after grouting pilot hole solidification, led with remaining first hole and carry out high-pressure rotary-spray construction in the lump, high-pressure whirl jet man-hour should
Carried out every hole and the pilot hole aperture that wouldn't be constructed is blocked, moved again after after the high-pressure rotary jet grouting pile solidification in adjacent pilot hole
Hole operation, until all pilot hole high-pressure rotary-spray constructions terminate；High-pressure rotary jet grouting pile on all same straight lines is connected to anti-together
Ooze wall.
Details are as follows：
The present invention is designed, 2 road cut-pff walls use double-tube method high-pressure rotary jet grouting pile to realize antiseepage needs using 2 road cut-pff walls
Into wall, fore-and-aft clearance 1.5m, front-seat cut-pff wall is not less than 2m away from forward position anti-flood wall hallux.Cut-pff wall bottom elevation -11.0m, wall top
Elevation 11.0m.Pile of High-pressure Spiral Jet footpath 0.6m, pilespacing 0.44m, into wall thickness 0.4m.Jet groutinl uses strength grade 42.5
Portland cement, cut-pff wall infiltration coefficient is not more than（1~9）×10-6cm/s.Height spray wall compression strength（28d ages
Phase）Not less than 1.5MPa；The tolerance of bore position is not more than 50mm, and vertical missing is not more than 0.3%；Playpipe segmentation is carried
The lap of splice risen is not less than 100mm.The ratio of mud 0.8~1.2 of cement grout, slurries injection 20~40MPa of pressure, flow 70
10~20cm/min of speed, 8~20r/min of rotary speed are lifted in~120L/min, soil layer.
1st, construction process
This engineering high-pressure rotary jet grouting pile impervious wall construction uses two tube method, first using KY100J drilling machine construction pilot holes, aperture 0.8m.
Then every 3 holes, stake pilot hole is sprayed in height（Draw hole）Interior cementing loess slurry（Loess percentage by weight 85%, cement weight face
Divide and compare 15%, add water and be fabricated to slurries）, be in the milk pitch of holes 1.75m, bottom hole elevation ▽ 0.0m.
Fill three times again, after the necessarily solidifying phase to be achieved, then high-pressure rotary jet grouting pile of constructing.During high spraying construction, adjacent holes are eated dishes without rice or wine to block up
Plug.Flow chart is as shown in Figure 1.
Plan during construction is as shown in Fig. 2 construction effect figure is as shown in Figure 3.
Resource distribution：
Construction machinery is configured
| Device name | Model | Remarks |
| Jet grouting pile driving machine | XD-30A | High-pressure rotary jet grouting pile |
| Rig | KY100J | Draw hole |
| High-pressure hydraulic pump | 3XB | Water under high pressure |
| Air compressor machine | SA-5150W | High pressure draught |
| Water pump | GPB-90 | |
| Mortar mixer | Mortar is stirred | |
| Slurry pump | BW-150 | Pneumatically applied mortar |
| Loading machine | Interim mobile device |
Every rotary jetting apparatus labour configuration
| Work title | Number | Remarks |
| Location observation | 3 | |
| Cloth hole | 3 | |
| Rig is in place | 5 | |
| Drilling | 3 | |
| Slip casting | 5 | |
| Tube drawing washes pipe | 5 |
2nd, sequence of construction
To prevent during Construction of High Pressure Jet Grouting Pile because adjacent two pile driving construction distance too near or interval time is too short, adjacent stake holes is caused
Grout leaking during construction, take in batches jump hole apply, applied during construction by interval of 2 holes.Many complete equipments are equipped with according to field condition, point
Not constructed from two ends to centre.Specific construction order can be adjusted according to on-site actual situations.
3rd, construction method
（1）Surveying setting-out is positioned
Datum mark, standard shaft line and the bench mark of construction site through check and each side's visa rear can be used.
Obvious mark is carried out for the datum mark of demarcation and is numbered, and carries out protection work.Use total powerstation and steel
Tape measure etc., stake position-finding is carried out using coordinate method.Positioning is measured to all piles segmentation in construction area before construction, and done
Good obvious, firm stake bit flag.Measurement record is carried out, to check.
（2）Rig is in place
Rig is placed in design hole position, drilling rod head is directed at hole position center, deviation is not more than 50mm.To ensure that drilling reaches
The perpendicularity of design requirement, after rig is in place, makees level correction, borer drill rod is positioned using drilling rod leading truck, makes drilling rod
Axis perpendicular alignmnet drill center position, perpendicularity deviation is not more than 0.3%.
（3）Draw hole（Pilot hole is constructed）
The purpose for drawing hole is to penetrate the barrier layers such as concrete in advance, is that follow-up high spraying construction creates conditions.Hole position and perpendicularity are inclined
Difference is performed according to high-pressure rotary jet grouting pile parameter.
（4）Advance grouting（Pilot hole is in the milk）
Advance grouting pressure 0.1MPa, slurry specific gravity is controlled 1.5 or so.
Filling grouting uses subsectin bottler method, from the bottom to top, setting of casing subsectin bottler, 5~10 meters of segment length.First to most
Bottom section is in the milk, and when grouting reaches design requirement, is lifted 5~10 meters of sleeve pipe, is then carried out the grouting of epimere, until the hole is filled
Slurry terminates.
Grouting starts first to use thin pulp, increases slip consistency again after 3~5min.If aperture pressure declines and Grouting Pipe goes out
Existing negative pressure（Pressure gauge reading is less than 0）, slurry consistency should be increased again, and the unit weight of slurries should be by technical requirement on design control.
The method that " few to fill how multiple " in grouting, should be used.
When slurries rise to aperture, when no longer eating slurry through continuously filling 3 times again, or grout hole grouting quantity, grouting orifice pressure
Power reaches design requirement, terminates grouting.
（5）Prepare curing agent slurries
Mortar mix proportion design is responsible in laboratory, strictly configures cement mortar by design requirement, treats before mud jacking cement mortar pouring into collection
In hopper.The material of rotary jet grouting is with 42.5 grades of Portland cements.Preparing curing agent slurries can use and existing similar filling
Starch stake identical grout coordinate ratio.
（6）High pressure jet grouting
After high pressure jet grouting pipe inserts desired depth, high pressure jet grouting is from bottom to top carried out, construction parameter is：Meet water side
Pressure 25MPa, lifting speed 20cm/min；Backwater lateral pressure 28MPa, lifting speed 10cm/min.Other construction parameters are same can
Carried out with reference to reference books or specification.
（7）Grout processing
During high pressure jet grouting, leakage amount more than 20% or completely not grout when should ascertain the reason, and take respective handling
Measure.
The excessive main cause of leakage amount is that effective spray regime and grouting amount are incompatible, and grouting amount is well beyond whitewashing
Caused by slurry amount needed for consolidation.Reduce leakage amount measure be：
1. pressure is improved；
2. rotation speed is accelerated.
3. to ensure churning quality of pile, the slurries on ground of emerging are not recycled.
Not grout take measures for：
1. specific geological conditions is found out first；
2. repeatedly multiple spray, fills up behind space and is further continued for normal whitewashing.
（8）Tube drawing, flushing
After the high-pressure rotary-spray end of job, Grouting Pipe is extracted rapidly, is rinsed well the plants such as Grouting Pipe with clear water, machine in pipe
It is interior must not remaining cement mortar.
（9）Stake machine displacement
After rotary churning pile machine Grouting Pipe all proposes ground, motor is first closed, then stake machine is moved to new stake position.
4th, key points of quality control
（1）Raw material quality control.Before construction, to raw material（Including cement, loess）Deng sampling detection, prevent using unqualified
Material.
（2）Pilot hole quality control.Pilot hole construction plays decisive role to follow-up high spraying construction quality, should be from measurement
Tightened control in terms of setting-out, hole position, perpendicularity.The pilot hole completed construct it is noted that being protected by, before high spraying construction, if necessary
Cleaning bottom of hole processing should be carried out to pilot hole.
（3）Slurry specific gravity is controlled.The either Cement Loess slurry in advance grouting, or the striaght cement in high-pressure rotary-spray
Slurry, during its specific gravity control is all emphasis, work progress, should strengthen checking.
（4）Height spray pile driving construction pressure, lifting speed control.Pressure parameter determines to need consideration to anti-flood wall security implication,
Lifting speed control to consider geological conditions and slurry situation is returned in aperture.
（5）The control of each operation interval time.Advance grouting construction can be carried out after the completion of pilot hole construction immediately, but it is super
Preceding grouting construction completes the laggard horizontal high voltage jet grouting pile constructions of 7d.Height spray stake point sequence construction, should also have intervals per sequence.
Part that the present invention does not relate to is same as the prior art or can be realized using prior art.
Claims (8)
1. a kind of integrated antiseepage processing method of hamburger type dyke, it is characterized in that it comprises the following steps：
First, surveying setting-out positioning is moved towards along cut-pff wall, it is determined that grouting hole site；
Secondly, all unwrapping wire holes are drilled to set depth using rig, concrete layer is passed through using rig, form guide
Hole；
3rd, into the pilot hole at interval of at least two, cement injection loess is starched repeatedly, untill occurring returning slurry；
4th, after after grouting pilot hole solidification, led with remaining first hole and carry out high-pressure rotary-spray construction in the lump, high-pressure whirl jet man-hour should
Carried out every hole and the pilot hole aperture that wouldn't be constructed is blocked, moved again after after the high-pressure rotary jet grouting pile solidification in adjacent pilot hole
Hole operation, until all pilot hole high-pressure rotary-spray constructions terminate；High-pressure rotary jet grouting pile on all same straight lines is connected to anti-together
Ooze wall.
2. according to the method described in claim 1, it is characterized in that described Cement Loess slurry grouting is by 15% cement and 85%
Loess is constituted.
3. according to the method described in claim 1, it is divided into the side antiseepage that meets water it is characterized in that the quantity of described cut-pff wall is two roads
Wall and land side mine dam, twice impervious wall construction method are identical, can construct simultaneously, can also separate and construct, between two road cut-pff walls
Every 1.5 meters, the side cut-pff wall that meets water is no less than 2 meters away from forward position anti-flood wall hallux.
4. according to the method described in claim 1, it is characterized in that 0.6 meter of described Pile of High-pressure Spiral Jet footpath, 0.44 meter of pilespacing, prevent
Ooze 0.4 meter of the thickness of wall.
5. according to the method described in claim 1, it is characterized in that using subsectin bottler method when described cement injection loess is starched,
From the bottom to top, setting of casing subsectin bottler, 5~10 meters of segment length；First most bottom section is in the milk, when grouting reaches design requirement, carried
5~10 meters of sleeve pipe is risen, the grouting of the preceding paragraph is then carried out, until hole grouting terminates；Grouting starts first to use thin pulp, by 3~
If being increased again after 5min, slip consistency aperture pressure declines and negative pressure occurs in Grouting Pipe, and slurry consistency, the appearance of slurries should be increased again
It should should fill how multiple method using few by technical requirement on design control in grouting again；When slurries rise to aperture, through continuous multiple filling
When no longer eating slurry 3 times, or the grouting quantity of grout hole, grouting orifice pressure reach design requirement, terminate grouting.
6. according to the method described in claim 1, it is characterized in that the slurries of described high-pressure rotary-spray construction are 42.5 grades common
Portland cement.
7. the method according to claim 1 or 3, it is characterized in that the grouting pressure of described high-pressure rotary-spray construction is the side that meets water
Pressure 25MPa, backwater lateral pressure 28Mpa, meet water side lifting speed 20cm/min；Land side lifting speed 10cm/min.
8. according to the method described in claim 1, it is characterized in that the pilot hole of described cement injection loess slurry should be applied in grouting
Work terminates to carry out high-pressure rotary-spray construction after 7 days again.
Priority Applications (1)
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| CN201710373654.2A CN107100137A (en) | 2017-05-24 | 2017-05-24 | The integrated antiseepage processing method of hamburger type dyke |
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| CN201710373654.2A CN107100137A (en) | 2017-05-24 | 2017-05-24 | The integrated antiseepage processing method of hamburger type dyke |
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| CN107842030A (en) * | 2017-12-07 | 2018-03-27 | 中铁二十局集团第六工程有限公司 | High-pressure rotary jet grouting pile equipment and construction method are used in a kind of material for diaphragm wall of Cofferdam construction |
| CN110820722A (en) * | 2019-11-19 | 2020-02-21 | 建基建设集团有限公司 | Construction method for impervious wall of stratum containing winding material or refuse dump stratum |
| CN111945667A (en) * | 2020-08-19 | 2020-11-17 | 四川港航建设工程有限公司 | Construction structure and construction method of high-pressure jet grouting impervious wall |
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| CN101205718A (en) * | 2006-12-18 | 2008-06-25 | 王同洪 | Method and equipment for seepage-proofing construction of dam and foundation pit |
| CN101255689A (en) * | 2008-03-12 | 2008-09-03 | 何世鸣 | Long helical spraying-rotary stirring soilcement purdah pile as well as construction method thereof |
| CN102051869A (en) * | 2009-11-02 | 2011-05-11 | 郑州优特基础工程维修有限公司 | High polymer heavy curtain grouting technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842030A (en) * | 2017-12-07 | 2018-03-27 | 中铁二十局集团第六工程有限公司 | High-pressure rotary jet grouting pile equipment and construction method are used in a kind of material for diaphragm wall of Cofferdam construction |
| CN110820722A (en) * | 2019-11-19 | 2020-02-21 | 建基建设集团有限公司 | Construction method for impervious wall of stratum containing winding material or refuse dump stratum |
| CN110820722B (en) * | 2019-11-19 | 2021-04-09 | 建基建设集团有限公司 | Construction method for impervious wall of stratum containing winding material or refuse dump stratum |
| CN111945667A (en) * | 2020-08-19 | 2020-11-17 | 四川港航建设工程有限公司 | Construction structure and construction method of high-pressure jet grouting impervious wall |
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Application publication date: 20170829 |