CN107740425A - Revolve cast anchor rope foundation pit supporting construction and its construction method - Google Patents
Revolve cast anchor rope foundation pit supporting construction and its construction method Download PDFInfo
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- CN107740425A CN107740425A CN201710972731.6A CN201710972731A CN107740425A CN 107740425 A CN107740425 A CN 107740425A CN 201710972731 A CN201710972731 A CN 201710972731A CN 107740425 A CN107740425 A CN 107740425A
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- construction
- shaped steel
- foundation pit
- pit supporting
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- 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
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention provides one kind to revolve cast anchor rope foundation pit supporting construction and its construction method, including：Bored concrete pile, water-stop curtain, rotation are cast anchor rope and shaped steel, and the shaped steel is vertically embedded in the water-stop curtain, and its top maintains an equal level with ground, and less than the top of the bored concrete pile, the top of the bored concrete pile is less than the ground for its bottom.It is provided by the invention to revolve cast anchor rope foundation pit supporting construction and its construction method, shaped steel is embedded in water-stop curtain, it is born the lateral load on ground upper strata, the height of bored concrete pile is reduced with this, effectively reduces cost.
Description
Technical field
It is that a kind of rotation is cast anchor and rope foundation pit supporting construction and its applied specifically the present invention relates to technical field of building construction
Work method.
Background technology
Foundation ditch belongs to temporary work, and its effect is to provide a space, and enable basis builds operation by laying bricks or stones according to design
Specified position is carried out.With the development of economic construction, the engineering of the big scale of construction such as high-rise building and City complex building
Also occur more and more, these big scale of construction engineerings not only area of aerial part and highly larger, the area of under ground portion and
Depth is also generally all bigger, and these big scale of construction engineering in general can all be located in the bustling location in city, and Floorplanning land used is non-
Often nervous, surrounding enviroment also can be more complicated, and the thus construction to underground engineering can cause very big influence, its foundation depth
Far surpass 10 meters, belong to ultra-deep foundation pit, foundation ditch is complex, and it is excavated and supporting directly influences engineering construction.To ensure underground
The safety of structure construction and foundation ditch surrounding enviroment, it usually needs to foundation pit side-wall and surrounding enviroment generally use supporting and retaining system, reinforce
Pattern foundation pit supporting structure measure.
At present, rotation is cast anchor in rope foundation pit supporting construction and its construction method, and bored concrete pile plays main lateral load of bearing
Effect, generally, its top maintain an equal level with ground level.
The content of the invention
The technical problem to be solved in the present invention is to provide one kind to revolve cast anchor rope foundation pit supporting construction and its construction method, can
To reduce the height of bored concrete pile, cost is reduced.
In order to solve the above technical problems, the invention provides one kind to revolve the rope foundation pit supporting construction that casts anchor, including：Bored concrete pile,
Water-stop curtain, cast anchor rope and shaped steel being revolved, the shaped steel is vertically embedded in the water-stop curtain, and its top maintains an equal level with ground,
Its bottom is less than the top of the bored concrete pile, and the top of the bored concrete pile is less than the ground, the shaped steel have it is multiple, it is described
Bored concrete pile has more, and the shaped steel corresponds with the bored concrete pile, and the free segment for revolving the rope that casts anchor is arranged at described every two
In gap between the individual shaped steel.
Further, the shaped steel is I-steel.
Further, it is 0.5~0.7 times of its overall length that the shaped steel, which intersects segment length with the bored concrete pile,.
Further, it is 0.6 times of its overall length that the shaped steel, which intersects segment length with the bored concrete pile,.
Further, in addition to from top to bottom collar tie beam, concrete waist rail and at least one steel wale.
Further, the setting angle for revolving the rope that casts anchor is 25 °.
One kind revolves rope foundation pit supporting construction construction method of casting anchor, wherein, revolve rope construction method of casting anchor and comprise the following steps：
A. position：
Gap location bracing wire between two pieces of shaped steel is marked, and when rig is in place, levels up base, and drilling rod is checked with compass
Angle of inclination, wherein, drilling hole position horizontal departure be less than or equal to 20mm, vertical missing is less than or equal to 100mm, and degree of skewness is small
In equal to 3%；
B. pore-forming：
Soil cement anchoring pile uses special drilling machine pore-forming, is used in construction if hard soil layer is met and is repeated once drawing bore method, its
Remaining soil layer uses one-step pore-creating, after steel strand wires deliver to projected depth, carries out slip casting, treat the mud that returns out in aperture without sand grains with
When native, exit drilling rod while lay the steel strand wires；
C. dowel makes and laid：Dowel is made using 3 or 4 a diameter of 15.2mm steel strand wires materials and is laid；
D. enlarged footing is constructed：The advance and retreat number of the jet mixing of enlarged footing increases by 2 times than pile body, enlarged head during construction
Divide and use 30~35MPa pressure operations, enlarged footing is 300~350kg per linear meter(lin.m.) cement consumption；
E. stretching construction.
It is provided by the invention to revolve cast anchor rope foundation pit supporting construction and its construction method, shaped steel is embedded in water-stop curtain,
It is born the lateral load on ground upper strata, the height of bored concrete pile is reduced with this, effectively reduces cost.
Brief description of the drawings
Fig. 1 is that the present invention revolves cast anchor rope foundation pit supporting construction and its structural scheme of mechanism of construction method；
Fig. 2 is Fig. 1 top view；
Fig. 3 is three axes agitating pile construction punching order；
Fig. 4 is three axes agitating pile construction process figure.
In figure, 1. bored concrete piles, 2. water-stop curtains, 3. shaped steel, 4. revolve the rope that casts anchor, 5. collar tie beams, 6. concrete waist rails, 7. shaped steel waists
Beam.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art can
To more fully understand the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
One kind revolves cast anchor rope foundation pit supporting construction and its construction method, as illustrated in fig. 1 and 2, including：Bored concrete pile 1, sealing
Curtain 2, cast anchor rope 4 and shaped steel 3 are revolved, the shaped steel 3 is vertically embedded in the water-stop curtain 2, and its top is held with ground
Flat, its bottom is less than the top of the bored concrete pile 1, and the top of the bored concrete pile 1 is less than the ground.
Shaped steel 3 is embedded in water-stop curtain 2, it is born the lateral load on ground upper strata, bored concrete pile is reduced with this
1 height, effectively reduces cost.
In one optional embodiment of this implementation, the shaped steel 3 has multiple, and the bored concrete pile 1 has more, the shaped steel 3
Corresponded with the bored concrete pile 1.Rotation is cast anchor in the gap that rope 4 is arranged between two shaped steel 3.
In one optional embodiment of this implementation, the shaped steel 3 is I-steel.
In one optional embodiment of this implementation, it is its overall length that the shaped steel 3, which intersects segment length A with the bored concrete pile 1,
0.5~0.7 times, it is preferred that the shaped steel 3 intersects 0.6 times that segment length is its overall length with the bored concrete pile 1.
In one optional embodiment of this implementation, the water-stop curtain 2 is three axes agitating pile, is used in present embodimentThe three axes agitating piles of@600, using " two sprays two are stirred ", set punches construction technology.Order is carried out as shown in Figure 3 for construction, its
Middle dash area bores to repeat set, to ensure the construction quality of the continuity of wall and joint.
As shown in figure 4, its construction method is：
1. barrier is cleared up
Because of the continuous construction of engineering method requirement, therefore should be carried out before construction to going along with sb. to guard him construction area underground obstacle and pipeline
Cleaning or displacement, to ensure that construction is smoothed out.
2. surveying setting-out
Before construction, first according to design drawing and the coordinate basis point of owner's offer, calculate and go along with sb. to guard him centerline angles point coordinates
(or corner point coordinates), go out to go along with sb. to guard him center line using the accurate setting-out of measuring instrument, and carry out coordinate data review, carry out simultaneously
Fender pile, engineering survey review list is carried out, submits to Party A to check and accept.
3. excavate groove
According to foundation pit enclosure side control line, groove is excavated using digging machine, and removes underground obstacle, groove dimensions
1200X1200.When underground obstacle is met in place, underground obstacle is abolished totally using pick machine, produced after such as abolishing
Big cavity, then need to be backfilling and compacted, excavate groove again.Soil answers timely processing more than excavation groove, to ensure three axes agitating pile just
Often construction, and reach Civilization Worksite requirement.
4. position shaped steel to place
Two positioning shaped steel are placed in vertical trench direction, specification is 200 × 200, length 2.5m, then in parallel groove
It is 300 × 300 that two positioning shaped steel specifications are placed in direction, is about 8~12m, corner H profile steel is taken and building enclosure center
Line insertion at 45 °, H profile steel positioning use H profile steel locator card.
5. three axes agitating pile hole position positions
Stake position is released according to design drawing and measurement control point, stake bit plane deviation is not more than 5cm.What this engineering used
Three axle mixer stake footpaths are 850mm, distance of shaft centers 600mm, mixing pile overlap joint 250mm.Three axes agitating pile punches work using set
Skill, therefore the stake heart is away from for 1200mm.Shaped steel is positioned in groove both sides using 1200mm as spacing, mark is carried out with red paint, protects
Card mixing pile is accurately positioned every time.
6. a machine corrects with perpendicularity in place
Reach job position with hoist engine and manpower movement mixing pile machine, and adjust pile frame perpendicularity reach 0.5% with
On.The iron ring that Radius is 5cm is welded on stake machine, the plummet of 10m high-altitude suspensions one, drilling rod perpendicularity is straightened using theodolite,
Make plummet just by iron ring center.Drilling rod must be suitably adjusted before construction every time, plummet is located in iron ring, i.e., drilling rod
The error of perpendicularity is controlled in 0.5%.
Stake machine displacement is assumed unified command of by captain on duty, must examine field condition before mobile, displacement will be accomplished flat
Surely, safety.After position of p ile machine, it is responsible for checking stake machine stake position by captain on duty, deviation cannot be greater than 20mm.
For ease of the control of pile depth, mark should be carried out before construction on drilling rod, mixing pile stake is long cannot be less than for control
Designing pile length, old mark is wiped when the long change of stake, carries out new mark.
7. mixing speed and grout injection control
(1) three axle cement mixing pile is sinking and all should inject cement grout, while strict sinking control in lifting process
With lifting speed.Two sprays are stirred using two, mixing speed >=30 turn/min, first stirs subsidence velocity≤1m/min, lifting speed≤
0.4m/min；Second stirs sinking≤1m/min, lifting speed≤0.8m/min.Suitably continue mixing-filling in stake bottom point, do
The original record of good each pile；
(2) cement grout and slurries injection are prepared：Arrangement mixes slurry construction platform automatically at the construction field (site), should before start
Carry out slurries stirs system, and work of telling somebody what one's real intentions are is carried out to mixing slurry staff before spudding in.The cement mixed weight of cement mixing method takes
15%~25%, the cement mortar ratio of mud be 0.6~0.8, in mud the soil cement unconfined compressive strength of 28 days >=
1.0MPa, spray pressure is more than 1.5MPa in work progress, and pump discharge requires constant.Using 42.5 normal silicate water
Mud.
8. cleaning, displacement
Proper amount of clear water will be added in aggregate bin, opens slurry pump, cleans mud jacking pipeline and other equipments used, Ran Houyi
Position carries out the construction of next pile again.
Tri-axial deep stirring pile sealing, which should try one's best, ensures the continuity of construction, is usually no more than 10 hours, ensures adjacent studs
Overlap joint effect, and then ensure its water-stagnating effect.If running into special circumstances, the construction interval time of adjacent two lag pile is more than 24
Hour, then should handle according to cold seam, the processing method of cold seam is to have constructed after the cold tri-axial deep stirring pile for stitching both sides, with cold
Centered on seam, increase a set of three axles water-seal pile on the outside of foundation ditch, to ensure the continuity of whole water-stop curtain.
Meet the treatment measures of the barriers such as boulder：
A, during barrier buried depth≤3 meter such as boulder and when more universal (the indivedual barriers run into work progress,
Removed in time during construction), the region constructed using common digging machine to needs is removed obstacles in advance, i.e., in advance by whole barriers
Dig out, ensure that construction is continuously smoothed out.
B, during barrier buried depth≤5 meter such as boulder and when more universal (the indivedual barriers run into work progress,
Removed in time during construction), the region constructed using long-armed digging machine to needs is removed obstacles in advance, i.e., in advance by whole barriers
Dig out, ensure that construction is continuously smoothed out.
C, during 5 meters of the barrier buried depth such as boulder ＞ and when more universal, barrier can not be dug using long-armed digging machine
Go out, this part will use dual-pipe high-pressure churning instead and replace tri-axial deep stirring pile, be not limited by barrier the advantages of this
System, in advance using geology drill hole, rotary-spraying construction then is carried out using two pipe churnings, to ensure water-stagnating effect, is applied using original position
After work is complete, in the row that constructs on the outside of it, and the overlap joint of two edge connectors is carried out.
There is the remedial measure after leakage stake：
If it will be remedied what omitting occurred in three axes agitating pile boundary of works area using single valve high-pressure chemical churning pile.
In one optional embodiment of the present embodiment, designed using four churning anchor cables 4, as shown in figure 1, from top to bottom
Collar tie beam 5, concrete waist rail 6 and two steel wales 7 respectively correspond to one of churning anchor cable 4.Wherein, anchorage cable design length 15m~
22m, anchor cable use the beam intensity of 3 beams~4 as 1860MPa high strength low relaxed steel strand wires, and anchor cable incident angle is 25 degree.Anchor cable
Different design loads and lock value are designed according to different section.Anchor cable tension design load is 250KN~395KN, anchor cable lock value
(prestressing force) is the KN of 100KN~150.Anchor cable is divided into free segment and anchoring section, and freedom length is 5m~9m, anchoring depth
For 10m~13m, anchoring body diameter 450mm.
The construction method of churning anchor cable 4：
Before anchoring pile construction, anchoring pile construction fundamental test should be carried out, experiment anchoring pile quantity should not be less than 2 to examine construction
The adaptability of technique and construction equipment, and aid in determining anchoring pile axial tension design ultimate bearing capacity.
Construction jet mixing soil cement anchoring pile, it, which is constructed, should use drilling, slip casting, stirring, the method for joint bar.Anchoring pile is adopted
With secondary multiple spray, enlarged footing uses four construction technologies sprayed again, and a diameter of Φ 450 of anchoring pile, level inclination is 25 degree, length
Spend for 15~22m.By drilling rod hollow hole, inside churning cement grout, the ratio of mud 0.8, general section rotary jet grouting pressure value is
25~30Mpa；It is 30~35Mpa to expand head section grouting pressure value；By the hollow channel of above-mentioned drilling rod, stirred in drilling
Slip casting, steel strand wires and anchor head structural member are brought into projected depth after pore-forming, slip casting is also answered in insertion process.Dowel uses 3
~4 prestress wires of Φ 15.2 make, and every steel strand wires tensile strength standard value is 1860Mpa, and every steel strand wires are by 7
Root steel wire is twisted, and 0.7m is stayed so as to tensioning outside stake.
Anchoring pile construction is completed, before lower floor's earth excavation, should carry out anchoring pile acceptance test, anchoring pile experiment quantity should be less than
5%.Churning anchor cable construction must be excavated according to staged and layered, and section length is not preferably greater than 35.0m, and lift height is not preferably greater than
2.0m, during lower floor's earth excavation, the piled anchor on upper strata must have the curing time of more than 15 days and complete tensioning fixation.Opening
To prevent from colliding steel strand wires in groove soil side's digging process.
Positioning：
After earth excavation groove, absolute altitude should be measured, and bracing wire is marked on fender post.Should be accurate when rig is in place,
Base should be leveled up, and the angle of inclination of drilling rod is checked using compass, and drilling hole position horizontal departure not should be greater than 20mm, vertical missing
100mm is not should be greater than, degree of skewness not should be greater than 3%.In place Zhong Wahao gutters and stock tank should be circulated before drilling construction, with
Avoid influenceing to construct because mud arbitrarily discharges.
Pore-forming：
Soil cement anchoring pile uses special drilling machine pore-forming.Used in construction if hard soil layer is met and be repeated once drawing bore method, its
Remaining soil layer uses one-step pore-creating.After steel strand wires deliver to projected depth, carry out slip casting, treat the mud that returns out in aperture without sand grains with
When native, exit drilling rod steel strand wires placement simultaneously and finish.
Dowel, which makes, to be laid：
Dowel body is made using 3~4 steel strand wires materials of Ф 15.2, and material therefor need to reach the mark of this kind of strength of materials
Quasi- value.
Enlarged footing is constructed：
The advance and retreat number of the jet mixing of enlarged footing increases by 2 times than pile body, expands to ensure the diameter of enlarged footing, during construction
Major part part uses 30~35MP pressure operations, and enlarged footing is 300~350kg per linear meter(lin.m.) cement consumption.
Stretching construction is the same as common prestress anchorage cable.
Reinforced cement earth anchoring pile construction point；
A, position is determined by construction drawing unwrapping wire before drilling, marked；
B, drilling machine selection should meet requirement of the design of its support to design parameter；
C, the muscle body of reinforced cement earth anchoring pile uses the steel strand wires of Φ 15.2, and dilling angle is 25 degree (with horizontal plane angle),
The strict dilling angle for pressing design requirement, stake is long and stake footpath is constructed；
D, dowel body insertion general interval time is no more than 3h, and should be placed on the center of pile body；
E, dowel should will lock on capping beam and waist rail, be applied per pile anchor lock value in strict accordance with design requirement
Add；
F, injecting paste material is starched only from 42.5R level Portland cements, the ratio of mud 0.8；Cement mortar answers uniform mixing,
For anchoring pile using secondary multiple spray, pile body is 200~220kg per linear meter(lin.m.) cement consumption；Enlarged footing is every using four multiple sprays, enlarged footing
Linear meter(lin.m.) cement consumption is 300~350kg；With mixing with the cement mortar once mixed and stirred should be finished before initial set；
G, general section rotary jet grouting pressure value is 25~30Mpa, and it is 30~35Mpa to expand head section grouting pressure value；
Easy produced problem and its treatment measures in construction：
A, stop to bore in time, after Solve problems in construction, re-start note if there is disconnected slurry phenomenon during construction slip casting
Slurry.
B, steel strand wires, which are laid, should be noted that：Steel strand wires are put into before drilling, should check the quality of steel strand wires, it is ensured that steel strand wires
Assembling meets design requirement.Steel strand wires must not be tapped arbitrarily after laying, and must not hang weight.
C, grouting serous fluid should stir, with stirring with slurries should be finished before initial set, and prevent that stone, debris are mixed into
Slurries.Slip casting operation starts and midway stops the long period, then operation is appropriate to the occasion with water or thin cement slurry lubrication grouting pump and slip casting
The mouth of pipe.When slurries are overflowed in aperture in addition to churning, slip casting can be stopped.
D, arrangement mortar preparation system should make horizontal generally no greater than 50 meters of the pumping distance of mortar, it is ensured that grouting pressure.
If pumping distance is more than 50 meters, often increase by 20 meters, grouting pressure accordingly increases 1Mpa.
E, this soil cement anchor pile construction technology specialty requires that level is strong, such as violates construction technology, can cause quality accident, because
To be constructed in this work progress in strict accordance with know-how requirement.
Anchor cable dynamometry, anchor cable installation dynamometer examine loads change, can use string formula dynamometer or photoelastic dynamometer etc..
Dynamometer installation method is as follows：
During anchor dynamometer Embedded installation, the contact surface of dynamometer and each backing plate is smooth, be not allow for crator, welding slag and
Other foreign matters are present, and reach all backing plate flat smooths, close with the contact surface of dynamometer.Ensure dynamometer and backing plate with burying
The axis of apertured is vertical, and gradient and eccentricity value are controlled by relevant specification and design requirement.Installation rope meter should have shadow to it
Tensioning loading is carried out around loud before other anchorage cable stretchings.When the carrying of pressure-bearing base concrete and the anchoring section concrete of anchor cable
After intensity reaches design requirement, interior backing plate, anchor dynamometer, outer backing plate are arranged on to the aperture of pressure-bearing base with anchor slab successively
On anchor plate, tensioning is carried out, and frequency meter is connected to monitoring pulling force with sensor.
Tensioning：Pretension after the assay was approved, connects tensioner, before loading tensioning, its initial value of accurate measurement and environment temperature
Degree, it is continuous to survey three times, after the difference of the maxima and minima of reading three times meets design requirement, its average value is taken as prison
The a reference value of survey.Then technical requirement on design stage loading tensioning is pressed, general every grade of load should be estimated once, afterbody lotus
Load should carry out stability monitoring, and three times, the difference of the maximum average value of reading and minimum average B configuration value meets that design will to continuous measure three times
Ask.
Installation locking：Tensile load locks unloading after stably meeting design requirement, estimates locking load in time afterwards.So
Stability monitoring after being locked afterwards, the interval for monitoring the time determines according to loads change speed, after meeting design requirement, enters
Enter normal monitoring.
Protection scope of the present invention not limited to this.What those skilled in the art were made on the basis of the present invention etc.
With replacement or conversion, within protection scope of the present invention.Protection scope of the present invention is defined by claims.
Claims (7)
- The rope foundation pit supporting construction 1. one kind rotation is cast anchor, it is characterised in that including：Bored concrete pile, water-stop curtain, rotation cast anchor Suo Hexing Steel, the shaped steel are vertically embedded in the water-stop curtain, and its top maintains an equal level with ground, and its bottom is less than the bored concrete pile Top, the top of the bored concrete pile are less than the ground, and the shaped steel has multiple, and the bored concrete pile has more, the shaped steel with The bored concrete pile is corresponded, and the free segment for revolving the rope that casts anchor is arranged in the gap between shaped steel described in each two.
- Rope foundation pit supporting construction and its construction method 2. rotation as claimed in claim 1 is cast anchor, it is characterised in that the shaped steel is I-steel.
- The rope foundation pit supporting construction 3. rotation as claimed in claim 1 or 2 is cast anchor, it is characterised in that the shaped steel and the perfusion The intersecting segment length of stake is 0.5~0.7 times of its overall length.
- The rope foundation pit supporting construction 4. rotation as claimed in claim 3 is cast anchor, it is characterised in that the shaped steel and the bored concrete pile phase Hand over 0.6 times that segment length is its overall length.
- The rope foundation pit supporting construction 5. rotation as claimed in claim 3 is cast anchor, it is characterised in that also include collar tie beam from top to bottom, Concrete waist rail and at least one steel wale.
- The rope foundation pit supporting construction 6. rotation as claimed in claim 3 is cast anchor, it is characterised in that the setting angle for revolving the rope that casts anchor For 25 °.
- 7. a kind of construction method for revolving the rope foundation pit supporting construction that casts anchor, it is characterised in that revolving the construction method for the rope that casts anchor is included such as Lower step：A. position：Gap location bracing wire between two pieces of shaped steel is marked, and when rig is in place, levels up base, and the inclination of drilling rod is checked with compass Angle, wherein, drilling hole position horizontal departure is less than or equal to 20mm, and vertical missing is less than or equal to 100mm, and degree of skewness is less than or equal to 3%；B. pore-forming：Soil cement anchoring pile uses special drilling machine pore-forming, and using drawing bore method is repeated once if hard soil layer is met in construction, remaining is native Layer use one-step pore-creating, after steel strand wires deliver to projected depth, carry out slip casting, when the mud that aperture is returned out without sand grains and it is native when, Exit drilling rod while lay the steel strand wires；C. dowel makes and laid：Dowel is made using 3 or 4 a diameter of 15.2mm steel strand wires materials and is laid；D. enlarged footing is constructed：Enlarged footing part uses 30~35MPa pressure operations during construction, and enlarged footing is per linear meter(lin.m.) cement consumption 300~350kg；E. stretching construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710972731.6A CN107740425A (en) | 2017-10-18 | 2017-10-18 | Revolve cast anchor rope foundation pit supporting construction and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710972731.6A CN107740425A (en) | 2017-10-18 | 2017-10-18 | Revolve cast anchor rope foundation pit supporting construction and its construction method |
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| Publication Number | Publication Date |
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| CN107740425A true CN107740425A (en) | 2018-02-27 |
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ID=61237683
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710972731.6A Pending CN107740425A (en) | 2017-10-18 | 2017-10-18 | Revolve cast anchor rope foundation pit supporting construction and its construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162281A (en) * | 2018-09-05 | 2019-01-08 | 江苏兴厦建设工程集团有限公司 | A kind of more anchor disk jet mixing stiffening piles |
| CN113378274A (en) * | 2021-06-16 | 2021-09-10 | 升维科技有限公司 | Building construction monitoring method and system based on BIM |
| CN114319387A (en) * | 2022-01-28 | 2022-04-12 | 北京建工集团有限责任公司 | Composite supporting structure positioning device and construction method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202466594U (en) * | 2011-12-29 | 2012-10-03 | 标力建设集团有限公司 | Horizontal jet grouting soil anchoring and cast-in-place pile compound foundation pit supporting structure |
| CN102912798A (en) * | 2012-11-06 | 2013-02-06 | 山东兴华建设集团有限公司 | Compound soil nail wall foundation pit supporting method |
-
2017
- 2017-10-18 CN CN201710972731.6A patent/CN107740425A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202466594U (en) * | 2011-12-29 | 2012-10-03 | 标力建设集团有限公司 | Horizontal jet grouting soil anchoring and cast-in-place pile compound foundation pit supporting structure |
| CN102912798A (en) * | 2012-11-06 | 2013-02-06 | 山东兴华建设集团有限公司 | Compound soil nail wall foundation pit supporting method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162281A (en) * | 2018-09-05 | 2019-01-08 | 江苏兴厦建设工程集团有限公司 | A kind of more anchor disk jet mixing stiffening piles |
| CN113378274A (en) * | 2021-06-16 | 2021-09-10 | 升维科技有限公司 | Building construction monitoring method and system based on BIM |
| CN113378274B (en) * | 2021-06-16 | 2023-12-01 | 鼎正工程咨询股份有限公司 | Building construction monitoring method and system based on BIM |
| CN114319387A (en) * | 2022-01-28 | 2022-04-12 | 北京建工集团有限责任公司 | Composite supporting structure positioning device and construction method thereof |
| CN114319387B (en) * | 2022-01-28 | 2022-07-01 | 北京建工集团有限责任公司 | Construction method of composite supporting structure positioning device |
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