CN110131479A - A kind of counterforce structure of soft soil foundation large section push pipe jacking operation - Google Patents
A kind of counterforce structure of soft soil foundation large section push pipe jacking operation Download PDFInfo
- Publication number
- CN110131479A CN110131479A CN201910510655.6A CN201910510655A CN110131479A CN 110131479 A CN110131479 A CN 110131479A CN 201910510655 A CN201910510655 A CN 201910510655A CN 110131479 A CN110131479 A CN 110131479A
- Authority
- CN
- China
- Prior art keywords
- bottom plate
- steel member
- jack
- substrate
- rectangle steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002689 soil Substances 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 58
- 239000010959 steel Substances 0.000 claims abstract description 58
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims abstract description 19
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000004567 concrete Substances 0.000 claims description 10
- 241000826860 Trapezium Species 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 10
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of counterforce structures of soft soil foundation large section push pipe jacking operation, substrate including bottom plate and reinforcing soleplate, substrate is the mixing pile or rotary churning pile being arranged under bottom plate, bottom plate is equipped with the pedestal of installation jack, rectangle steel member is additionally provided on bottom plate, the counter-force end of each jack is connected to the front end face of rectangle steel member at equal intervals, counter-force is applied to rectangle steel member, rectangle steel member rear end face is equipped with steel corbel corresponding with jack, steel corbel is fixedly connected with pre-buried reinforcing bar in the substrate, provides counter-force support to rectangle steel member.The present invention replaces the rear parados way of conventional using the foundation anchor structure that mixing pile or rotary churning pile Prestressing anchor pole combine, on the one hand foundation stabilization is carried out by mixing pile or rotary churning pile, on the other hand active force is transmitted in soil layer by embedded bar, make anchor structure keep stablizing, is able to bear the top power of jacking device generation during soft soil foundation big cross section jacking construction.
Description
Technical field
The present invention relates to field more particularly to a kind of counterforce structures of soft soil foundation large section push pipe jacking operation.
Background technique
Jacking construction is that tool pipe or development machine are pressed design grade from starting well using incremental launching devices such as hydraulic jacks
Interior decentralization simultaneously digs across soil layer and pushes up in received well always and sling, and prefabricated tube coupling follows tool closely under jack thrusting action
After pipe or development machine, constantly extends and be embedded between two active wells, realize the trenchless installation of underground piping.
In underground pipe-driving construction, it is mainly jacking that rear parados, which is for resisting the wall of jacking counter-force in active well,
Equipment provides enough support forces.In entire work progress, pressure caused by push pipe is all concentrated on rear parados, because hereafter
The stability and bearing capacity of backrest have a very important role to the construction of entire underground pipe-driving.
The Normal practice of parados is one piece of thicker reinforced concrete wall after at present, and steel is bound together with inwall in construction
Muscle, whole casting concrete together.But when passing through shallow earthing soft soil layer, large section jacking forces in pipe-jacking is far unconventional
Active well back wall construction and the soil body allow to push up power, and when construction takes previous active well and its rear parados form easily to generate unstability
It destroys.
Summary of the invention
The object of the present invention is to provide a kind of counterforce structures of soft soil foundation large section push pipe jacking operation, solve current
In the construction of soft clay area big cross section rectangular top pipe, the problem of parados way is not able to satisfy push pipe jacking counter-force after routine, for peace
Full construction provides safeguard.
For achieving the above object, the technical scheme is that a kind of soft soil foundation large section push pipe jacking is made
The counterforce structure of industry, the substrate including bottom plate and reinforcing soleplate, bottom plate are equipped with the jack of several horizontally-parallel settings, with
And the pedestal of installation jack, pedestal are equipped at least one hoop for fixing jack, are additionally provided with rectangle steel member on bottom plate,
The counter-force end of each jack is connected to the front end face of rectangle steel member at equal intervals, applies counter-force, rectangle steel to rectangle steel member
Component rear end face is equipped with steel corbel corresponding with jack, and steel corbel is fixedly connected with reinforcing bar pre-buried in substrate, to rectangle steel
Component provides counter-force support；
The substrate is the mixing pile or rotary churning pile being arranged under bottom plate, and mixing pile or rotary churning pile height are six meters, mixing pile or
Vertical prestressed anchor is embedded in rotary churning pile, prestressed anchor upper end is embedded in bottom plate, reinforces to bottom plate；
The steel corbel is right-angled trapezium steel member, and the right angle waist of steel corbel is connected on the rear end face of rectangle steel member, steel ox
Leg lower end surface is equipped with several bolts hole, is equipped with high-strength bolt in bolt hole, and pre-buried reinforcing bar is vertically arranged in the substrate
HRB400 reinforcing bar, HRB400 reinforcing bar upper end be embedded to bottom plate and with high-strength bolt sleeve connection, steel corbel is fixed.
Further, the bottom plate is formed using C40 concreting.
Further, plain concrete bed course is equipped between the bottom plate and substrate, plain concrete bed course is 200mm thickness C20 concrete.
Further, steel box is embedded in the bottom plate, steel box is set in outside the HRB400 reinforcing bar.
The beneficial effects of the present invention are: the foundation anchor that the present invention is combined using mixing pile or rotary churning pile Prestressing anchor pole
Structure replaces the rear parados way of conventional, on the one hand carries out foundation stabilization by mixing pile or rotary churning pile, on the other hand logical
It crosses embedded bar active force is transmitted in soil layer, makes anchor structure keep stablizing, be able to bear soft soil foundation big cross section push pipe
The top power that jacking device generates in work progress ensures that steel corbel support is firm from stiffness and strength etc., guarantees the biography of power
It passs and whole stress, parados way cannot provide effective support for big cross section push pipe jacking or control not after solving tradition
The problems such as firmly deforming, it is ensured that the safety of pipe-jacking project and go on smoothly.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the cross-sectional view of bottom plate of the present invention and substrate；
Fig. 3 is the bottom view of steel corbel of the present invention；
Fig. 4 is the scheme of installation of steel corbel of the present invention.
Specific embodiment
Below in conjunction with attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.
As shown in Figs 1-4, a kind of counterforce structure of soft soil foundation large section push pipe jacking operation, including bottom plate 1 and
The substrate 2 of reinforcing soleplate 1, bottom plate 1 are equipped in the jack 3(figure of several horizontally-parallel settings and are not drawn into), and installation thousand
The pedestal 4 on jin top 3, pedestal 4 are equipped at least one hoop 5 for fixing jack 3, are additionally provided with rectangle steel member 6 on bottom plate 4,
The counter-force end of each jack 3 is connected to the front end face of rectangle steel member 6 at equal intervals, applies counter-force, rectangle to rectangle steel member 6
6 rear end face of steel member is equipped with steel corbel 7 corresponding with jack 3, and steel corbel 7 is fixedly connected with reinforcing bar 11 pre-buried in substrate 2,
Counter-force support is provided to rectangle steel member 6；
As shown in Fig. 2, the substrate 2 is the mixing pile or rotary churning pile being arranged under bottom plate 1, mixing pile or rotary churning pile height are six
Rice is embedded with vertical prestressed anchor 8 in mixing pile or rotary churning pile, and 8 upper end of prestressed anchor is embedded in bottom plate, to bottom plate into
Row is reinforced；
The steel corbel 7 is right-angled trapezium steel member, and the right angle waist of steel corbel 7 is connected on the rear end face of rectangle steel member 6, steel
7 lower end surface of bracket is equipped with several bolts hole 9, high-strength bolt 10 is equipped in bolt hole 9, as shown in figure 3, pre-buried in the substrate 2
Reinforcing bar 11 be vertically arranged HRB400 reinforcing bar, HRB400 reinforcing bar upper end be embedded to bottom plate 1 and with 10 sleeve connection of high-strength bolt,
As shown in figure 4, steel corbel 7 is fixed, while the reaction force that steel corbel 7 transmits being transmitted in soil layer.
The bottom plate 1 is formed using C40 concreting.
Plain concrete bed course 12 is equipped between the bottom plate 1 and substrate 2, plain concrete bed course is 200mm thickness C20 concrete.
Steel box 13 is embedded in the bottom plate 1, steel box 13 is set in outside the HRB400 reinforcing bar.
The present invention replaces conventional using the foundation anchor structure that mixing pile or rotary churning pile Prestressing anchor pole combine
On the one hand parados way afterwards carries out foundation stabilization by mixing pile or rotary churning pile, on the other hand pass through embedded bar for active force
It is transmitted in soil layer, makes anchor structure keep stablizing, be able to bear jacking device during soft soil foundation big cross section jacking construction
The top power of generation ensures that steel corbel support is firm from stiffness and strength etc., guarantees the transmitting and whole stress of power, solves
Parados way cannot provide the problems such as effectively supporting or lose control of deformation after tradition for big cross section push pipe jacking, it is ensured that top
It the safety of plumber's journey and goes on smoothly.
Described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, belongs to the scope of the present invention.
Claims (4)
1. a kind of counterforce structure of soft soil foundation large section push pipe jacking operation, which is characterized in that including bottom plate and reinforcing
The substrate of bottom plate, bottom plate are equipped with the jack of several horizontally-parallel settings, and the pedestal of installation jack, pedestal are equipped with
At least one fixes the hoop of jack, is additionally provided with rectangle steel member on bottom plate, the counter-force end of each jack abuts at equal intervals
In the front end face of rectangle steel member, counter-force is applied to rectangle steel member, rectangle steel member rear end face is equipped with corresponding with jack
Steel corbel, steel corbel are fixedly connected with reinforcing bar pre-buried in substrate, provide counter-force support to rectangle steel member；
The substrate be the mixing pile or rotary churning pile being arranged under bottom plate, mixing pile or rotary churning pile height according to site soil layers come
It is fixed, be embedded with vertical prestressed anchor in mixing pile or rotary churning pile, prestressed anchor upper end bury it is solid in bottom plate, to bottom plate into
Row is reinforced；
The steel corbel is right-angled trapezium steel member, and the right angle waist of steel corbel is connected on the rear end face of rectangle steel member, steel ox
Leg lower end surface is equipped with several bolts hole, is equipped with high-strength bolt in bolt hole, and pre-buried reinforcing bar is vertically arranged in the substrate
HRB400 reinforcing bar, HRB400 reinforcing bar upper end be embedded to bottom plate and with high-strength bolt sleeve connection, steel corbel is fixed.
2. a kind of counterforce structure of soft soil foundation large section push pipe jacking operation as described in claim 1, which is characterized in that
The bottom plate is formed using C40 concreting.
3. a kind of counterforce structure of soft soil foundation large section push pipe jacking operation as described in claim 1, which is characterized in that
Plain concrete bed course is equipped between the bottom plate and substrate, plain concrete bed course is 200mm thickness C20 concrete.
4. a kind of counterforce structure of soft soil foundation large section push pipe jacking operation as described in claim 1, which is characterized in that
Steel box is embedded in the bottom plate, steel box is set in outside the HRB400 reinforcing bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910510655.6A CN110131479B (en) | 2019-06-13 | 2019-06-13 | Reaction structure for jacking operation of soft soil foundation super-large section jacking pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910510655.6A CN110131479B (en) | 2019-06-13 | 2019-06-13 | Reaction structure for jacking operation of soft soil foundation super-large section jacking pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110131479A true CN110131479A (en) | 2019-08-16 |
| CN110131479B CN110131479B (en) | 2024-04-16 |
Family
ID=67581524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910510655.6A Active CN110131479B (en) | 2019-06-13 | 2019-06-13 | Reaction structure for jacking operation of soft soil foundation super-large section jacking pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110131479B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455726A (en) * | 2014-11-20 | 2015-03-25 | 广州市市政集团有限公司 | Pipe-jacking construction method for pipeline bottom grouting reinforcement |
| JP2015143454A (en) * | 2013-12-25 | 2015-08-06 | 日本ヒューム株式会社 | Concrete jacked pipe for pipe jacking method |
| CN210106749U (en) * | 2019-06-13 | 2020-02-21 | 福建工程学院 | Counter-force structure of soft soil foundation super large section push pipe jacking operation |
-
2019
- 2019-06-13 CN CN201910510655.6A patent/CN110131479B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015143454A (en) * | 2013-12-25 | 2015-08-06 | 日本ヒューム株式会社 | Concrete jacked pipe for pipe jacking method |
| CN104455726A (en) * | 2014-11-20 | 2015-03-25 | 广州市市政集团有限公司 | Pipe-jacking construction method for pipeline bottom grouting reinforcement |
| CN210106749U (en) * | 2019-06-13 | 2020-02-21 | 福建工程学院 | Counter-force structure of soft soil foundation super large section push pipe jacking operation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110131479B (en) | 2024-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207092107U (en) | A kind of anti-subsidence structure using diaphram wall | |
| CN102561377A (en) | Seismic-resistant-columned rock bolt foundation with enlarged toe and construction method of seismic-resistant-columned rock bolt foundation with enlarged toe | |
| CN108316328A (en) | A kind of pressurization sinking device and its construction method for open caisson construction | |
| CN111395312A (en) | Composite light pile structure, manufacturing method, construction method and pile splicing method | |
| JP3761323B2 (en) | How to rebuild a building | |
| CN210106749U (en) | Counter-force structure of soft soil foundation super large section push pipe jacking operation | |
| CN106677162A (en) | Stiff composite precast sheet pile envelope structure | |
| CN106193644A (en) | Basement reconstruction structure with raft foundation building | |
| CN117344756A (en) | Side slope supporting device and construction method thereof | |
| CN106400814A (en) | Foundation pit supporting method | |
| CN108867662A (en) | Large span base pit stand construction with cable wire rope | |
| CN110131479A (en) | A kind of counterforce structure of soft soil foundation large section push pipe jacking operation | |
| CN106223344B (en) | A kind of ground line piled anchor frame foundation pit supporting method | |
| CN112832252B (en) | Deep foundation pit supporting construction method with large height difference of two sides | |
| CN205676899U (en) | A kind of foundation ditch permanent support structure based on double bored concrete pile | |
| CN106638611A (en) | Micro steel pipe pile-anchor combined support construction method | |
| CN205712123U (en) | A kind of foundation ditch permanent support structure based on double pile for prestressed pipe | |
| CN211922488U (en) | Take full vertical pile wharf structure of horizontal stay restraint | |
| CN212129195U (en) | Newly-increased steel-pipe pile and anchor of back additional bearing platform in basis transformation | |
| CN208604615U (en) | A kind of pressurization sinking device for open caisson construction | |
| CN206467649U (en) | A kind of stiffness composite precast slab stake building enclosure | |
| CN219671334U (en) | Anti-floating anchor rod steel bar anchoring connection structure | |
| CN201526048U (en) | Anchor-type metal foundation | |
| RU85499U1 (en) | STRENGTHENING STRENGTH PLATE BASE | |
| CN219796333U (en) | Push counter-force balancing device for large-section push pipe of soft soil foundation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |