CN209163805U - A kind of big cross section rectangular top pipe construction active well foundation reinforcing structure - Google Patents
A kind of big cross section rectangular top pipe construction active well foundation reinforcing structure Download PDFInfo
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- CN209163805U CN209163805U CN201821309286.1U CN201821309286U CN209163805U CN 209163805 U CN209163805 U CN 209163805U CN 201821309286 U CN201821309286 U CN 201821309286U CN 209163805 U CN209163805 U CN 209163805U
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 101
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
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Abstract
The utility model discloses a kind of big cross section rectangular top pipe construction active well foundation reinforcing structures, foundation pit enclosure structure including being gone along with sb. to guard him to active well, the shaft bottom ruggedized construction positioned at active well inside bottom, the back ruggedized construction positioned at active well dead astern and the hole ruggedized construction out immediately ahead of active well, the horizonal base plate of active well are located at right above the ruggedized construction of shaft bottom；Active well is the vertical shaft for from top to bottom excavating formation；Foundation pit enclosure structure includes the bored pile structure gone along with sb. to guard him to vertical shaft, the foundation pit waterproof curtain on the outside of bored pile structure and the crown beam being supported in bored pile structure.The utility model simple structure and reasonable design and it is easy for construction, consolidation effect is good, foundation pit enclosure structure is formed by bored pile structure and water-stop curtain, not only consolidate but also waterproof；Be provided with back ruggedized construction simultaneously and can ensure that the jacking of big cross section push pipe steadily carries out, and be provided with ruggedized construction of appearing ensure to appear process safety, steady carry out.
Description
Technical field
The utility model belongs to pipe jacking construction technique field, more particularly, to a kind of big cross section rectangular top pipe construction work
Well foundation reinforcing structure.
Background technique
Jacking construction is a kind of non-excavating construction method, and construction by pipeline jacking method is exactly to be produced in working pit by means of jacking device
Raw top power, overcomes the frictional force of pipeline (i.e. push pipe) and surrounding soil, pipeline is headed into soil by the gradient of design, and will be native
Side transports.When practical progress jacking construction, generallys use multiple jacking pipe joints and carry out jackings, a jacking pipe joints completion heads into soil
Layer and then carry out next section pipe and continue jacking, principle be by means of thrusts such as main top oil cylinder and pipeline enclosure, relay wells,
Tool pipe or development machine are advanced to always out of working pit (also referred to as active well or starting well) across soil layer (appearing) and connect
It receives and is sling in hole (also referred to as received well).After pipeline follows tool pipe or development machine closely, it is embedded between two holes.Trenchless engineering skill
Art is thoroughly solved to problems such as the blockings of the destruction of City Building and road traffic in piping laying construction, in steady soil
Its advantage is highlighted in terms of environmental protection.
Pipe gallery is exactly the comprehensive corridor of underground urban duct.Pipe gallery is carried out in work progress using push bench process,
Especially for 6m and cross-sectional height is greater than using cross-sectional width, greater than the rectangle pipe jacking tube coupling of 3m to carry out shallow earthing disconnected greatly
When face rectangular top pipe is constructed, difficulty of construction is very big.Since pipe gallery top earthing is shallower, the top buried depth of pipe gallery is small
In 5m, shallow earthing jacking constraint condition is weak, sensitive to the disturbance on pressure, stratum, easily causes the grand heavy deformation in ground.Meanwhile it using
The area of section of push-bench is big, and push-bench top width is big, big with the contact area of soil layer, Yi Yinqi push-bench head back soil,
Aggravation is to soil disturbance and loss.It is mainly the big cross section rectangular top pipe progress of flour sand folder silt or silty sand ground for penetrating ground
When construction, since soil property is poor, stability is poor, and place level of ground water is higher, and jacking construction difficulty is bigger.
Relative to round push pipe, rectangular top pipe is easier to that the native phenomenon of push-bench head back occurs in jack-in process.Push-bench
Head is carried on the back native phenomenon and is referred in jack-in process, due to being almost level above rectangular pipe jacking machine, when in jacking construction buried depth
In the case where shallower, the unloading arch action of the top soil body is relatively unobvious, unloads the soil body within the pitch of arch under Gravitative Loads
Collapsing is overlying on push-bench upper surface so that push-bench influenced by this part soil body frictional resistance in jack-in process forward it is more bright
Aobvious, with push pipe direction compressive deformation or movement can occur for the soil body under frictional resistance force reaction, bear this just as pipeline top
The part soil body is mobile the same.Rectangular pipe jacking machine refers to that cross section is rectangle and shape jacking pipe joints are carried out with the push pipe of jacking construction
Machine.
Big cross section rectangular top pipe originates and receive process going into operation and completing and have highly important influence for engineering.
It during entering hole and appearing, needs to consider various pressure balances, measurement correction and the even running of push-bench, thus works
Well consolidated subsoil is most important.
Utility model content
It is a kind of big disconnected the technical problem to be solved by the utility model is in view of the deficiency of the prior art, provide
Face rectangular top pipe construction use active well foundation reinforcing structure, simple structure and reasonable design and it is easy for construction, consolidation effect is good,
Foundation pit enclosure structure is formed by bored pile structure and water-stop curtain, not only firm but also waterproof；It is provided with back simultaneously and reinforces knot
Structure can ensure that the jacking of big cross section push pipe steadily carries out, and be provided with ruggedized construction of appearing ensure to appear process safety, steady carry out.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of big cross section rectangular top pipe construction
With active well foundation reinforcing structure, it is characterised in that: including active well is gone along with sb. to guard him foundation pit enclosure structure, be located at active well
The shaft bottom ruggedized construction of inside bottom, positioned at the back ruggedized construction in active well dead astern and appearing immediately ahead of active well
Mouth ruggedized construction, the horizonal base plate of the active well are located at right above the ruggedized construction of shaft bottom；The active well is from top to bottom to open
Dig the vertical shaft formed；The vertical shaft is cube structure, and four boreholes wall of the vertical shaft are the cast-in-place steel being arranged vertically
Tendon concrete structure, the horizonal base plate are reinforced concrete structure, and four boreholes wall are poured with horizonal base plate and are integrated；
The foundation pit enclosure structure includes the bored pile structure gone along with sb. to guard him to the vertical shaft, is located at the drilled pile
Foundation pit waterproof curtain on the outside of building enclosure and the crown beam being supported in the bored pile structure, the bored pile knot
The cross-sectional shape of structure and the foundation pit waterproof curtain is identical as the cross-sectional shape of the vertical shaft；The bored pile knot
Structure includes the drilled pile that a circle is laid along the surrounding excavating sideline of active well, and the drilled pile is arranged vertically, the drilling
The structure snd size of all drilled piles are all the same in stake building enclosure；The foundation pit waterproof curtain is by a circle along the four of active well
The vertical water sealing structure that the three axes agitating pile that all excavating sidelines are laid surrounds；The crown beam is rectangular and its shape and the vertical shaft
Cross-sectional shape it is identical, the crown beam in horizontal layout and its be reinforced beam, the top of each drilled pile is equal
It is fastenedly connected and is integrated with crown beam, the drilled pile is located on the outside of the borehole wall, and all drilled piles are equal in the bored pile structure
It is laid in same level and it is reinforced concrete pile；
The shaft bottom ruggedized construction is formed after being reinforced using shaft bottom reinforcing pile to the soil body immediately below horizonal base plate
Pile foundation, the shaft bottom ruggedized construction are located on the inside of the bored pile structure, and the shaft bottom reinforcing pile is in vertically to cloth
If reinforcing pile；
The back ruggedized construction is to be formed after being reinforced using the soil body of the rear portion reinforcing pile to back reinforcing area
Ruggedized construction, the rear portion reinforcing pile are the reinforcing pile being arranged vertically；The back reinforcing area be arranged vertically and
Its dead astern for being located at active well, the back reinforcing area include front side reinforcing area and are located at the front side reinforcing area just
The cross section in the backside reinforcement region at rear, the front side reinforcing area is isosceles trapezoid and its width gradually increases from front to back
Greatly, the front width of the front side reinforcing area is identical as the transverse width of foundation pit waterproof curtain；The backside reinforcement region
Cross section is rectangle and its width is identical as the rear portion width of the front side reinforcing area；
The hole ruggedized construction out is to be formed using appearing after reinforcing pile reinforces the soil body for reinforcing area of appearing
Ruggedized construction, the reinforcing pile of appearing is the reinforcing pile being arranged vertically；The reinforcing area of appearing is arranged vertically
And its front for being located at active well, the cross section of the reinforcing area of appearing are rectangle and its width and foundation pit waterproof curtain
Transverse width is identical；
Four boreholes wall be respectively the front side borehole wall, positioned at front side borehole wall dead astern the rear side borehole wall and be connected to
The left side borehole wall and the right side borehole wall between at left and right sides of the front side borehole wall and the rear side borehole wall；It is opened in the middle part of the front side borehole wall
Have and go out hole for what push-bench passed through, the hole ruggedized construction out is located at the front at hole, the back ruggedized construction
Positioned at the dead astern at hole out.
Above-mentioned a kind of big cross section rectangular top pipe construction active well foundation reinforcing structure, it is characterized in that: the shaft bottom reinforces
The height of structure is 4m~6m.
Above-mentioned a kind of big cross section rectangular top pipe construction active well foundation reinforcing structure, it is characterized in that: the push-bench is
The pipe jacking equipment of jacking construction is carried out to constructed underground piping, constructed underground piping is located at the front at hole, is applied
Work underground piping is rectangular duct, and constructed underground piping is spliced to be spliced from front to back by multiple pipeline assembly sections
Pipeline；The transverse width of constructed underground piping is 8.5m~9.5m and its height is 4.5m~5.5m, and the hole out is square
Shape.
Above-mentioned a kind of big cross section rectangular top pipe construction active well foundation reinforcing structure, it is characterized in that: the horizonal base plate
Vertical spacing at the top of top and crown beam is 8m~12m；The back ruggedized construction is identical with the height of hole ruggedized construction out,
The bottom flush of the back ruggedized construction and out hole ruggedized construction, the hole ruggedized construction out are from top to bottom divided into
Portion's ruggedized construction, middle part ruggedized construction and lower part ruggedized construction, the height and the height phase at hole out of the middle part ruggedized construction
Together, the bottom of the middle part ruggedized construction and hole top horizontal out are neat；The height of the top ruggedized construction is not less than 2.5m,
The height of the lower part ruggedized construction is not less than 3.5m.
Above-mentioned a kind of big cross section rectangular top pipe construction active well foundation reinforcing structure, it is characterized in that: the drilled pile encloses
It is provided between stake between protection structure and foundation pit waterproof curtain and between the bored pile structure and shaft bottom ruggedized construction
The cross-sectional shape of water sealing structure, the waterproof between piles structure is identical as the cross-sectional shape of the vertical shaft；
The cross-sectional shape of the waterproof between piles structure is identical as the cross-sectional shape of the vertical shaft, the waterproof between piles
Structure includes the high-pressure rotary jet grouting pile that a circle is arranged vertically, in the waterproof between piles structure structure of all high-pressure rotary jet grouting piles and
Size is all the same.
Above-mentioned a kind of big cross section rectangular top pipe construction active well foundation reinforcing structure, it is characterized in that: the waterproof between piles
All high-pressure rotary jet grouting piles are in uniformly distributed in structure, and the stake diameter of the high-pressure rotary jet grouting pile is Φ 700mm~Φ 900mm, and adjacent two
Spacing between a high-pressure rotary jet grouting pile is 350mm~450mm.
Above-mentioned a kind of big cross section rectangular top pipe construction active well foundation reinforcing structure, it is characterized in that: the drilled pile encloses
All drilled piles are in uniformly distributed in protection structure, between the stake diameter of the drilled pile is less than between the two neighboring drilled pile
Away from；All three axes agitating piles are in uniformly distributed in the foundation pit waterproof curtain, and the stake diameter of the drilled pile is Φ 700mm~Φ
900mm, the spacing between the two neighboring drilled pile are 900mm~1100mm；It is stirred described in the foundation pit waterproof curtain
The stake diameter of stake is Φ 800mm~Φ 900mm, and the spacing between the two neighboring mixing pile is 550mm~650mm.
Above-mentioned a kind of big cross section rectangular top pipe construction active well foundation reinforcing structure, it is characterized in that: the foundation pit sealing
Curtain bottom is lower than the bottom surface of shaft bottom ruggedized construction, and the height of the drilled pile is greater than the height of foundation pit waterproof curtain.
A kind of above-mentioned big cross section rectangular top pipe construction active well foundation reinforcing structure, it is characterized in that: the drilled pile
Height is 24m~30m, and the height of the foundation pit waterproof curtain is 18m~22m.
Above-mentioned a kind of big cross section rectangular top pipe construction active well foundation reinforcing structure, it is characterized in that: further including being laid in
Outer-enwraped type water-stop curtain on front side of active well, the outer-enwraped type water-stop curtain are located on the outside of the ruggedized construction of hole, the outsourcing
And the height of foundation pit waterproof curtain is identical and the bottom of the two is concordant for the height of formula water-stop curtain；The outer-enwraped type water-stop curtain packet
The left side sealing screen being located on the left of active well is included, the right side water-stop curtain on the right side of active well, the left side is connected to and stops
Front side water-stop curtain between water curtain and right side water-stop curtain front end is connected to the left side sealing screen rear portion and base
It cheats the left rear side water-stop curtain on the left of water-stop curtain between front and is connected to the right side sealing screen rear portion and foundation pit sealing
Right lateral side water-stop curtain between curtain right front, the left side sealing screen and the right side water-stop curtain are in symmetrical cloth
If the left rear side water-stop curtain is symmetrically arranged with the right lateral side water-stop curtain；It is the front side water-stop curtain, described left back
Side water-stop curtain and right lateral side water-stop curtain laid along the transverse width direction of active well and three be by it is multiple by it is left extremely
The vertical water sealing structure that the three axes agitating pile of right laying surrounds；The left side sealing screen and the right side water-stop curtain are served as reasons
The vertical water sealing structure that multiple three axes agitating piles laid from front to back surround, the left side sealing screen and the front side sealing
The perpendicular laying of curtain.
Compared with the prior art, the utility model has the following advantages:
1, simple structure and reasonable design and investment construction cost it is lower.
2, foundation pit enclosure structure is formed by bored pile structure and water-stop curtain, it can be to building and lower section institute near foundation pit
The subway tunnel of leap carries out effective protection, and can effectively prevent stream soil, drift sand, can prevent soil erosion when excavation of foundation pit from causing
Foundation pit side roadbed subsidence, and reduce the risks such as foundation pit side building, subway tunnel operation failure.Using three axes agitating pile as base
Cheat water-stop curtain, can be carried out effective sealing, based on the needs of deep basal pit stability and security, using cast-in-situ bored pile make mainly by
Power stake is gone along with sb. to guard him, thus foundation pit enclosure structure is firm, effective.Meanwhile it (drilling in foundation pit waterproof curtain and cast-in-situ bored pile
Stake) stake seam use high-pressure rotary jet grouting pile sealing, can be further improved and go along with sb. to guard him effect and water-stagnating effect.On foundation pit top, surrounding is set
Collar tie beam is set, to ensure the stability and security of foundation pit.
Rotary churning pile is set between foundation pit waterproof curtain and cast-in-situ bored pile, is engaged with fender post (i.e. drilled pile), rotary churning pile
Being mutually twisted with bored concrete pile not only has stronger water shutoff, while can enhance the rigidity of building enclosure.Three axes agitating pile with
Based on cement mixing method, it is inserted into fashioned iron during cement-soil stirring pile construction, not only acts as sealing and impervious effect, and
And fashioned iron and soil cement shared water and soil lateral pressure, soil cement improve the rigidity of fashioned iron to the package action of fashioned iron, play
Reduce the effect of displacement.Thus, foundation pit enclosure structure uses the combined support structure system of rigid flexible system, not only firm but also waterproof.
After carrying out foundation pit enclosure using the foundation pit enclosure structure, then manually cooperative mechanical carries out excavation of foundation pit, is not in that foundation pit loses
It is steady and gush sand phenomenon, no infiltration, and excavation of foundation pit and push pipe jacking does not result in larger sedimentation and horizontal displacement, it is ensured that entire top
Pipe construction process is gone on smoothly.
3, it is provided with out hole ruggedized construction, can ensure that process safety of appearing, steady progress.
4, it is provided with back ruggedized construction, provides firm, reliable back for push-bench jacking construction, it is ensured that big cross section top
Tube top is carried out into steady, and can be reduced or even avoid push pipe to deflect (i.e. push pipe center axis deviation) problem.
In conclusion the utility model simple structure and reasonable design and it is easy for construction, consolidation effect is good, enclosed by drilled pile
Protection structure and water-stop curtain form foundation pit enclosure structure, not only firm but also waterproof；Being provided with back ruggedized construction simultaneously can ensure that greatly
The jacking of section push pipe steadily carries out, and be provided with ruggedized construction of appearing ensure to appear process safety, steady carry out.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Detailed description of the invention
Fig. 1 is the planar structure schematic diagram of the utility model.
Fig. 2 is the schematic view of facade structure of the utility model.
Fig. 3 is the utility model foundation pit enclosure structure, shaft bottom ruggedized construction, goes out hole ruggedized construction and back ruggedized construction
Planar structure schematic diagram.
Description of symbols:
1-active well；2-the boreholes wall；3-crown beams；
4-horizonal base plates；5-drilled piles；6-foundation pit waterproof curtains；
7-shaft bottom ruggedized constructions；8-back ruggedized constructions；9-go out hole ruggedized construction；
10-go out hole；11-constructed underground pipings；
12-high-pressure rotary jet grouting piles；13-outer-enwraped type water-stop curtains.
Specific embodiment
As shown in Figure 1, Figure 2 and Figure 3, the utility model includes the foundation pit enclosure structure gone along with sb. to guard him to active well 1, is located at
The shaft bottom ruggedized construction 7 of 1 inside bottom of active well, positioned at 1 dead astern of active well back ruggedized construction 8 and be located at active well 1
Front goes out hole ruggedized construction 9, and the horizonal base plate 4 of the active well 1 is located at right above shaft bottom ruggedized construction 7；The work
Making well 1 is the vertical shaft for from top to bottom excavating formation；The vertical shaft is cube structure, and four boreholes wall 2 of the vertical shaft are to be in
Vertically to the monolithic reinforced concrete structure of laying, the horizonal base plate 4 is reinforced concrete structure, and four boreholes wall 2 are
It pours and is integrated with horizonal base plate 4；
The foundation pit enclosure structure includes the bored pile structure gone along with sb. to guard him to the vertical shaft, is located at the drilled pile
Foundation pit waterproof curtain 6 on the outside of building enclosure and the crown beam 3 being supported in the bored pile structure, the bored pile
The cross-sectional shape of structure and the foundation pit waterproof curtain 6 is identical as the cross-sectional shape of the vertical shaft；The drilled pile encloses
Protection structure includes the drilled pile 5 that a circle is laid along the surrounding excavating sideline of active well 1, and the drilled pile 5 is arranged vertically,
The structure snd size of all drilled piles 5 are all the same in the bored pile structure；The foundation pit waterproof curtain 6 is by a circle edge
The vertical water sealing structure that the three axes agitating pile that the surrounding excavating sideline of active well 1 is laid surrounds；The crown beam 3 is rectangular and its shape
Shape is identical as the cross-sectional shape of the vertical shaft, the crown beam 3 in horizontal layout and its be reinforced beam, each brill
The top of hole stake 5, which is fastenedly connected with crown beam 3, to be integrated, and the drilled pile 5 is located at 2 outside of the borehole wall, the bored pile knot
All drilled piles 5 are laid in same level in structure and it is reinforced concrete pile；
The shaft bottom ruggedized construction 7 is to be formed after being reinforced using shaft bottom reinforcing pile to the 4 underface soil body of horizonal base plate
Pile foundation, the shaft bottom ruggedized construction 7 is located on the inside of the bored pile structure, the shaft bottom reinforcing pile be in vertically to
The reinforcing pile of laying；
The back ruggedized construction 8 is to be formed after being reinforced using the soil body of the rear portion reinforcing pile to back reinforcing area
Ruggedized construction, the rear portion reinforcing pile are the reinforcing pile being arranged vertically；The back reinforcing area be arranged vertically and
Its dead astern for being located at active well 1, the back reinforcing area include front side reinforcing area and be located at the front side reinforcing area
The cross section in the backside reinforcement region in dead astern, the front side reinforcing area is isosceles trapezoid and its width gradually increases from front to back
Greatly, the front width of the front side reinforcing area is identical as the transverse width of foundation pit waterproof curtain 6；The backside reinforcement region
Cross section is rectangle and its width is identical as the rear portion width of the front side reinforcing area；
The hole ruggedized construction 9 out is to be formed using appearing after reinforcing pile reinforces the soil body for reinforcing area of appearing
Ruggedized construction, the reinforcing pile of appearing is the reinforcing pile being arranged vertically；The reinforcing area of appearing is arranged vertically
And its front for being located at active well 1, the cross section of the reinforcing area of appearing are rectangle and its width and foundation pit waterproof curtain 6
Transverse width it is identical；
Four boreholes wall 2 are respectively the front side borehole wall, the rear side borehole wall positioned at front side borehole wall dead astern and connection
The left side borehole wall and the right side borehole wall between the front side borehole wall and the rear side borehole wall left and right sides；In the middle part of the front side borehole wall
It is provided with and goes out hole 10 for what push-bench passed through, the hole ruggedized construction 9 out is located at the front at hole 10, and the back adds
Fixing structure 8 is located at the dead astern at hole 10.
In the present embodiment, the pile body of the two neighboring drilled pile 5 is mutually twisted in the bored pile structure.
In the present embodiment, the height of the shaft bottom ruggedized construction 7 is 4m~6m.
When practice of construction, according to specific needs, the height of shaft bottom ruggedized construction 7 is adjusted accordingly.
In the present embodiment, the drilled pile 5 is cast-in-situ bored pile.
Shaft bottom reinforcing pile described in the shaft bottom ruggedized construction 7 is laid in multiple rows of multiple row, and shaft bottom reinforcing pile described in every row is equal
Including the shaft bottom reinforcing pile that multiple transverse width directions along active well 1 are laid from left to right, shaft bottom described in multiple row is reinforced
Stake is laid from front to back along the longitudinal length of constructed underground piping 11.
The reinforcing pile of appearing described in hole ruggedized construction 9 out is laid in multiple rows of multiple row, reinforcing pile of appearing described in every row
Include reinforcing pile of appearing described in multiple transverse width directions along active well 1 are laid from left to right, appears and add described in multiple row
Gu stake is laid from front to back along the longitudinal length of constructed underground piping 11.
In the present embodiment, the shaft bottom reinforcing pile and the reinforcing pile of appearing are three axes agitating pile, and the shaft bottom
Mixing pile in reinforcing pile and the reinforcing pile of appearing is cement mixing pile.
The pile body of the two neighboring cement mixing pile is mutually twisted in shaft bottom reinforcing pile described in every row, adjacent two column in front and back
The pile body of the shaft bottom reinforcing pile is mutually twisted.It appears described in every row the pile body of the two neighboring cement mixing pile in reinforcing pile
It is mutually twisted, the pile body for reinforcing pile of appearing described in adjacent two column in front and back is mutually twisted.
The push-bench by construction underground piping 11 carry out jacking construction pipe jacking equipment, constructed underground piping 11
Positioned at the front at hole 10 out, constructed underground piping 11 is rectangular duct, and constructed underground piping 11 is by multiple pipelines
The spliced pipeline that assembly section is spliced from front to back；The transverse width of constructed underground piping 11 be 8.5m~9.5m and its
Height is 4.5m~5.5m, and the hole 10 out is rectangle.
In the present embodiment, the vertical spacing at 4 top of horizonal base plate and 3 top of crown beam is 8m~12m；The back
Ruggedized construction 8 is identical with the height of hole ruggedized construction 9 out, the back ruggedized construction 8 and the out bottom of hole ruggedized construction 9
Flush, the hole ruggedized construction 9 out are from top to bottom divided into top ruggedized construction, middle part ruggedized construction and lower part and reinforce knot
Structure, the height of the middle part ruggedized construction is identical as the height at hole 10 out, the bottom of the middle part ruggedized construction and hole out
10 tops are concordant；The height of the top ruggedized construction is not less than 2.5m, and the height of the lower part ruggedized construction is not less than
3.5m。
When practice of construction, according to the cross-sectional structure and size of constructed underground piping 11, to the structure at hole 10 out and
Size is determined.Also, according to specific needs, the height of the top ruggedized construction and the lower part ruggedized construction is distinguished
It adjusts accordingly.
In the present embodiment, between the bored pile structure and foundation pit waterproof curtain 6 and the bored pile knot
Be provided with waterproof between piles structure between structure and shaft bottom ruggedized construction 7, the cross-sectional shape of the waterproof between piles structure with it is described
The cross-sectional shape of vertical shaft is identical；
The cross-sectional shape of the waterproof between piles structure is identical as the cross-sectional shape of the vertical shaft, the waterproof between piles
Structure includes the high-pressure rotary jet grouting pile 12 that a circle is arranged vertically, the knot of all high-pressure rotary jet grouting piles 12 in the waterproof between piles structure
Structure and size are all the same.
Thus, by the waterproof between piles structure to connecing between the bored pile structure and foundation pit waterproof curtain 6
Seam and the seam between the bored pile structure and shaft bottom ruggedized construction 7 carry out sealing respectively, can be further improved only
Water effect and consolidation effect.
The stake diameter of the high-pressure rotary jet grouting pile 12 between the bored pile structure and foundation pit waterproof curtain 6 is greater than described
Clear distance between bored pile structure and water-stop curtain 6, it is described between the bored pile structure and shaft bottom ruggedized construction 7
The stake diameter of high-pressure rotary jet grouting pile 12 is greater than the clear distance between the bored pile structure and shaft bottom ruggedized construction 7.
In the present embodiment, all high-pressure rotary jet grouting piles are in uniformly distributed, the high-pressure rotary jet grouting pile in the waterproof between piles structure
12 stake diameter is greater than the spacing between the two neighboring high-pressure rotary jet grouting pile 12.It is two neighboring described in the waterproof between piles structure
The pile body of high-pressure rotary jet grouting pile 12 is mutually twisted.
The stake diameter of the high-pressure rotary jet grouting pile 12 is Φ 700mm~Φ 900mm, between the two neighboring high-pressure rotary jet grouting pile 12
Spacing be 350mm~450mm；Clear distance between the bored pile structure and water-stop curtain 6 is 150mm~400mm,
Clear distance between the bored pile structure and shaft bottom ruggedized construction 7 is 150mm~400mm.
Correspondingly, for all drilled piles 5 in uniformly distributed, the stake diameter of the drilled pile 5 is small in the bored pile structure
Spacing between the two neighboring drilled pile 5；All three axes agitating piles are in uniformly distributed in the foundation pit waterproof curtain 6,
The stake diameter of each mixing pile is all larger than the spacing between the two neighboring mixing pile in the foundation pit waterproof curtain 6.
The stake diameter of the drilled pile 5 is Φ 700mm~Φ 900mm, and the spacing between the two neighboring drilled pile 5 is
900mm~1100mm；The stake diameter of mixing pile described in the foundation pit waterproof curtain 6 is Φ 800mm~Φ 900mm, two neighboring
Spacing between the mixing pile is 550mm~650mm.
In the present embodiment, 6 bottom of foundation pit waterproof curtain is lower than the bottom surface of shaft bottom ruggedized construction 7, the drilled pile 5
Height is greater than the height of foundation pit waterproof curtain 6.
In the present embodiment, the height of the drilled pile 5 is 24m~30m, and the height of the foundation pit waterproof curtain 6 is 18m
~22m.
In the present embodiment, the stake diameter of the high-pressure rotary jet grouting pile 12 is Φ 800mm, the two neighboring high-pressure rotary jet grouting pile 12 it
Between spacing be 400mm；The stake diameter of the drilled pile 5 is Φ 800mm, and the spacing between the two neighboring drilled pile 5 is
1000mm；The stake diameter of mixing pile described in the foundation pit waterproof curtain 6 is Φ 850mm, between the two neighboring mixing pile
Spacing is 600mm.
When practice of construction, according to specific needs, the stake to the high-pressure rotary jet grouting pile 12, drilled pile 5 and the mixing pile
Spacing between the height and the two neighboring high-pressure rotary jet grouting pile 12 of diameter, the drilled pile 5 and water-stop curtain 6, adjacent two
Spacing in spacing and the water-stop curtain 6 between a drilled pile 5 between the two neighboring mixing pile carries out respectively
Corresponding adjustment.
In the present embodiment, pad is equipped with concrete cushion between the horizonal base plate 4 and shaft bottom ruggedized construction 7.
In the present embodiment, the utility model further includes the outer-enwraped type water-stop curtain 13 for being laid in 1 front side of active well, described outer
Packet mode water-stop curtain 13 is located at 9 outside of hole ruggedized construction, the height and foundation pit sealing curtain of the outer-enwraped type water-stop curtain 13
Curtain 6 height is identical and the bottom of the two is concordant；The outer-enwraped type water-stop curtain 13 includes stopping positioned at the left side in 1 left side of active well
Water screen, is connected to the left side water-stop curtain and the right side water-stop curtain at the right side water-stop curtain on the right side of active well 1
Front side water-stop curtain between front end is connected between 6 left side front of the left side sealing screen rear portion and foundation pit waterproof curtain
Left rear side water-stop curtain and the right side that is connected between 6 right front of the right side sealing screen rear portion and foundation pit waterproof curtain after
Side water-stop curtain, the left side sealing screen are symmetrically arranged with the right side water-stop curtain, the left rear side water-stop curtain with
The right lateral side water-stop curtain is symmetrically arranged；The front side water-stop curtain, the left rear side water-stop curtain and right lateral side sealing
Curtain is laid along the transverse width direction of active well 1 and three is to be surrounded by multiple three axes agitating piles laid from left to right
Vertical water sealing structure；The left side sealing screen and the right side water-stop curtain are by multiple three axis laid from front to back
The vertical water sealing structure that mixing pile surrounds, the left side sealing screen and the perpendicular laying of front side water-stop curtain.
When practice of construction, the portal water-stagnating effect at hole 10 can be further increased out by outer-enwraped type water-stop curtain 13.
When constructing to the utility model, ground leveling is first carried out, then distinguish the foundation pit enclosure structure and crown beam 3
Carry out supporting；Later, from top to bottom active well 1 is excavated；After the completion of excavation, construct to shaft bottom ruggedized construction 7；To
After the completion of shaft bottom ruggedized construction 7 is constructed, pad dress concrete cushion carries out levelling then synchronous to four boreholes wall 2 from the bottom to top
It constructs.It, need to also be in the bored pile structure and shaft bottom ruggedized construction 7 after the completion of the shaft bottom ruggedized construction 7 is constructed
Between construct the waterproof between piles structure.
When constructing to the foundation pit enclosure structure, applied to the bored pile structure with foundation pit waterproof curtain 6
After the completion of work, then the waterproof between piles structure of constructing between the bored pile structure and foundation pit waterproof curtain 6.
In the foundation pit enclosure structure work progress, also needs to back ruggedized construction 8, goes out hole ruggedized construction 9 and outsourcing
Formula water-stop curtain 13 is constructed respectively.In the present embodiment, in the outer-enwraped type water-stop curtain 13 structure of three axes agitating pile and
Size is identical as the structure snd size of three axes agitating pile in foundation pit waterproof curtain.
The above is only the preferred embodiment of the utility model, not imposes any restrictions to the utility model, all
According to any simple modification to the above embodiments of the utility model technical spirit, change and equivalent structural changes, still
Belong in the protection scope of technical solutions of the utility model.
Claims (10)
1. a kind of big cross section rectangular top pipe construction active well foundation reinforcing structure, it is characterised in that: including to active well (1) into
Row go along with sb. to guard him foundation pit enclosure structure, be located at active well (1) inside bottom shaft bottom ruggedized construction (7), be located at active well (1) just after
Side back ruggedized construction (8) and be located at active well (1) immediately ahead of go out hole ruggedized construction (9), the water of the active well (1)
Flat underside (4) is located at right above shaft bottom ruggedized construction (7)；The active well (1) is the vertical shaft for from top to bottom excavating formation；It is described
Vertical shaft is cube structure, and four boreholes wall (2) of the vertical shaft are the monolithic reinforced concrete structure being arranged vertically, institute
Stating horizonal base plate (4) is reinforced concrete structure, and four boreholes wall (2) pour with horizonal base plate (4) and are integrated；
The foundation pit enclosure structure includes the bored pile structure gone along with sb. to guard him to the vertical shaft, is located at the bored pile
Foundation pit waterproof curtain (6) on the outside of structure and the crown beam (3) being supported in the bored pile structure, the bored pile
The cross-sectional shape of structure and the foundation pit waterproof curtain (6) is identical as the cross-sectional shape of the vertical shaft；The drilled pile
Building enclosure includes the drilled pile (5) that a circle is laid along the surrounding excavating sideline of active well (1), and the drilled pile (5) is in vertical
To laying, the structure snd size of all drilled piles (5) are all the same in the bored pile structure；The foundation pit waterproof curtain
(6) the vertical water sealing structure to be surrounded by a circle along the three axes agitating pile that the surrounding excavating sideline of active well (1) is laid；The hat
Beam (3) be rectangular and its shape it is identical with the cross-sectional shape of the vertical shaft, the crown beam (3) in horizontal layout and its be reinforcing bar
Beams of concrete, the top of each drilled pile (5), which is fastenedly connected with crown beam (3), to be integrated, and the drilled pile (5) is located at well
On the outside of wall (2), all drilled piles (5) are laid in same level in the bored pile structure and it is that reinforcing bar is mixed
Solidifying soil stake；
The shaft bottom ruggedized construction (7) is to be formed after being reinforced using shaft bottom reinforcing pile to the soil body immediately below horizonal base plate (4)
Pile foundation, the shaft bottom ruggedized construction (7) be located on the inside of the bored pile structure, and the shaft bottom reinforcing pile is in vertical
To the reinforcing pile of laying；
The back ruggedized construction (8) be formed after being reinforced using the soil body of the rear portion reinforcing pile to back reinforcing area plus
Fixing structure, the rear portion reinforcing pile are the reinforcing pile being arranged vertically；The back reinforcing area is arranged vertically and it
Positioned at the dead astern of active well (1), the back reinforcing area include front side reinforcing area and be located at the front side reinforcing area
The cross section in the backside reinforcement region in dead astern, the front side reinforcing area is isosceles trapezoid and its width gradually increases from front to back
Greatly, the front width of the front side reinforcing area is identical as the transverse width of foundation pit waterproof curtain (6)；The backside reinforcement region
Cross section be rectangle and its width it is identical as the rear portion width of the front side reinforcing area；
Described hole ruggedized construction (9) out are to be formed using appearing after reinforcing pile reinforces the soil body for reinforcing area of appearing
Ruggedized construction, the reinforcing pile of appearing are the reinforcing pile being arranged vertically；The reinforcing area of appearing be arranged vertically and
Its front for being located at active well (1), the cross section of the reinforcing area of appearing are rectangle and its width and foundation pit waterproof curtain
(6) transverse width is identical；
Four boreholes wall (2) be respectively the front side borehole wall, positioned at front side borehole wall dead astern the rear side borehole wall and be connected to
The left side borehole wall and the right side borehole wall between at left and right sides of the front side borehole wall and the rear side borehole wall；It is opened in the middle part of the front side borehole wall
Have and go out hole (10) for what push-bench passed through, described hole ruggedized construction (9) out are located at the front of hole (10), after described
Carry on the back the dead astern that ruggedized construction (8) are located at hole (10).
2. a kind of big cross section rectangular top pipe construction active well foundation reinforcing structure described in accordance with the claim 1, feature exist
In: the height of the shaft bottom ruggedized construction (7) is 4m~6m.
3. a kind of big cross section rectangular top pipe construction active well foundation reinforcing structure according to claim 1 or 2, feature
Be: the push-bench by construction underground piping (11) carry out jacking construction pipe jacking equipment, constructed underground piping
(11) it is located at the front of hole (10), constructed underground piping (11) is rectangular duct, and constructed underground piping (11) is
The spliced pipeline being spliced from front to back by multiple pipeline assembly sections；The transverse width of constructed underground piping (11) is
8.5m~9.5m and its height are 4.5m~5.5m, and described hole (10) out are rectangle.
4. a kind of big cross section rectangular top pipe construction active well foundation reinforcing structure described in accordance with the claim 3, feature exist
In: the vertical spacing at the top of the horizonal base plate (4) and at the top of crown beam (3) is 8m~12m；The back ruggedized construction (8) and
The height of hole ruggedized construction (9) is identical out, and the back ruggedized construction (8) is equal with the bottom of hole ruggedized construction (9) out
Together, hole ruggedized construction (9) out are from top to bottom divided into top ruggedized construction, middle part ruggedized construction and lower part ruggedized construction,
The height of the middle part ruggedized construction is identical as the height of hole out (10), the bottom of the middle part ruggedized construction and hole out
(10) bottom is concordant；The height of the top ruggedized construction is not less than 2.5m, and the height of the lower part ruggedized construction is not less than
3.5m。
5. a kind of big cross section rectangular top pipe construction active well foundation reinforcing structure according to claim 1 or 2, feature
Be: between the bored pile structure and foundation pit waterproof curtain (6) and the bored pile structure is reinforced with shaft bottom
It is provided with waterproof between piles structure between structure (7), the cross-sectional shape of the waterproof between piles structure is transversal with the vertical shaft
Face shape is identical；
The cross-sectional shape of the waterproof between piles structure is identical as the cross-sectional shape of the vertical shaft, the waterproof between piles structure
The high-pressure rotary jet grouting pile (12) being arranged vertically is enclosed including one, the knot of all high-pressure rotary jet grouting piles (12) in the waterproof between piles structure
Structure and size are all the same.
6. a kind of big cross section rectangular top pipe construction active well foundation reinforcing structure, feature exist according to claim 5
In: all high-pressure rotary jet grouting piles (12) are in uniformly distributed in the waterproof between piles structure, and the stake diameter of the high-pressure rotary jet grouting pile (12) is
Φ 700mm~Φ 900mm, the spacing between the two neighboring high-pressure rotary jet grouting pile (12) are 350mm~450mm.
7. a kind of big cross section rectangular top pipe construction active well foundation reinforcing structure according to claim 1 or 2, feature
Be: all drilled piles (5) are in uniformly distributed in the bored pile structure, and the stake diameter of the drilled pile (5) is less than adjacent
Spacing between two drilled piles (5)；All three axes agitating piles are in uniformly distributed, institute in the foundation pit waterproof curtain (6)
The stake diameter for stating drilled pile (5) is Φ 700mm~Φ 900mm, the spacing between the two neighboring drilled pile (5) be 900mm~
1100mm；The stake diameter of mixing pile described in the foundation pit waterproof curtain (6) is Φ 800mm~Φ 900mm, two neighboring described to stir
Mixing the spacing between stake is 550mm~650mm.
8. a kind of big cross section rectangular top pipe construction active well foundation reinforcing structure according to claim 1 or 2, feature
Be: foundation pit waterproof curtain (6) bottom is lower than the bottom surface of shaft bottom ruggedized construction (7), and the height of the drilled pile (5) is greater than
The height of foundation pit waterproof curtain (6).
9. a kind of big cross section rectangular top pipe construction active well foundation reinforcing structure, feature exist according to claim 8
In: the height of the drilled pile (5) is 24m~30m, and the height of the foundation pit waterproof curtain (6) is 18m~22m.
10. a kind of big cross section rectangular top pipe construction active well foundation reinforcing structure according to claim 1 or 2, special
Sign is: it further include the outer-enwraped type water-stop curtain (13) being laid on front side of active well (1), outer-enwraped type water-stop curtain (13) position
On the outside of hole ruggedized construction (9) out, the height and the height phase of foundation pit waterproof curtain (6) of the outer-enwraped type water-stop curtain (13)
Same and the two bottom is concordant；The outer-enwraped type water-stop curtain (13) include left side sealing screen on the left of active well (1),
Right side water-stop curtain on the right side of active well (1) is connected to the left side water-stop curtain and right side water-stop curtain front end
Between front side water-stop curtain, be connected on the left of the left side sealing screen rear portion and foundation pit waterproof curtain (6) between front
After left rear side water-stop curtain and the right side being connected between the right side sealing screen rear portion and foundation pit waterproof curtain (6) right front
Side water-stop curtain, the left side sealing screen are symmetrically arranged with the right side water-stop curtain, the left rear side water-stop curtain with
The right lateral side water-stop curtain is symmetrically arranged；The front side water-stop curtain, the left rear side water-stop curtain and right lateral side sealing
Curtain is laid along the transverse width direction of active well (1) and three is to be enclosed by multiple three axes agitating piles laid from left to right
At vertical water sealing structure；The left side sealing screen and the right side water-stop curtain are by multiple three laid from front to back
The vertical water sealing structure that axis mixing pile surrounds, the left side sealing screen and the perpendicular laying of front side water-stop curtain.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821309286.1U CN209163805U (en) | 2018-08-14 | 2018-08-14 | A kind of big cross section rectangular top pipe construction active well foundation reinforcing structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821309286.1U CN209163805U (en) | 2018-08-14 | 2018-08-14 | A kind of big cross section rectangular top pipe construction active well foundation reinforcing structure |
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|---|---|
| CN209163805U true CN209163805U (en) | 2019-07-26 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410098A (en) * | 2019-07-29 | 2019-11-05 | 西安建筑科技大学 | The supplementary structure and construction method of a kind of excessively underwater soil/rock stratum push pipe into transfer well |
| CN110629763A (en) * | 2019-08-19 | 2019-12-31 | 中国一冶集团有限公司 | Drag pipe well chamber foundation pit supporting structure and construction method thereof |
| CN110670631A (en) * | 2019-10-16 | 2020-01-10 | 宏润建设集团股份有限公司 | Supporting structure and excavation method of comprehensive pipe gallery foundation pit |
| CN111779487A (en) * | 2020-07-17 | 2020-10-16 | 中铁十二局集团有限公司 | Construction method of end well of automatic footpath |
| CN114482079A (en) * | 2022-01-24 | 2022-05-13 | 中铁四局集团有限公司 | Pipe jacking well deep foundation pit construction method |
| CN115234477A (en) * | 2022-07-07 | 2022-10-25 | 华能陇东能源有限责任公司 | Vertical shaft of gravity compressed air energy storage system for loess geology and reinforcing method |
| CN115288113A (en) * | 2022-07-20 | 2022-11-04 | 中国一冶集团有限公司 | Reinforced structure for jacking and withdrawing of jacking pipe and construction method thereof |
| RU2810763C1 (en) * | 2023-05-04 | 2023-12-28 | Владимир Васильевич Галайко | Method for fastening rectangular mine shaft with monolithic composite concrete |
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2018
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410098A (en) * | 2019-07-29 | 2019-11-05 | 西安建筑科技大学 | The supplementary structure and construction method of a kind of excessively underwater soil/rock stratum push pipe into transfer well |
| CN110629763A (en) * | 2019-08-19 | 2019-12-31 | 中国一冶集团有限公司 | Drag pipe well chamber foundation pit supporting structure and construction method thereof |
| CN110670631A (en) * | 2019-10-16 | 2020-01-10 | 宏润建设集团股份有限公司 | Supporting structure and excavation method of comprehensive pipe gallery foundation pit |
| CN111779487A (en) * | 2020-07-17 | 2020-10-16 | 中铁十二局集团有限公司 | Construction method of end well of automatic footpath |
| CN111779487B (en) * | 2020-07-17 | 2022-03-08 | 中铁十二局集团有限公司 | Construction method of end well of automatic footpath |
| CN114482079A (en) * | 2022-01-24 | 2022-05-13 | 中铁四局集团有限公司 | Pipe jacking well deep foundation pit construction method |
| CN114482079B (en) * | 2022-01-24 | 2023-09-19 | 中铁四局集团有限公司 | Construction method for deep foundation pit of pipe jacking well |
| CN115234477A (en) * | 2022-07-07 | 2022-10-25 | 华能陇东能源有限责任公司 | Vertical shaft of gravity compressed air energy storage system for loess geology and reinforcing method |
| CN115234477B (en) * | 2022-07-07 | 2023-12-05 | 华能陇东能源有限责任公司 | Vertical shaft of gravity compressed air energy storage system for loess geology and reinforcing method |
| CN115288113A (en) * | 2022-07-20 | 2022-11-04 | 中国一冶集团有限公司 | Reinforced structure for jacking and withdrawing of jacking pipe and construction method thereof |
| RU2810763C1 (en) * | 2023-05-04 | 2023-12-28 | Владимир Васильевич Галайко | Method for fastening rectangular mine shaft with monolithic composite concrete |
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Address after: 215151 No. 10, Datong Road, high tech Zone, Suzhou, Jiangsu Patentee after: China Railway Construction Urban Construction Transportation Development Co.,Ltd. Country or region after: China Address before: Engineering technology management center of the first Engineering Co., Ltd. of China Railway 20th bureau group, No.10 Datong Road, high tech Zone, Suzhou City, Jiangsu Province Patentee before: NO.1 ENGINEERING CORPORATION LIMITED OF CR20G Country or region before: China |