CN107354947A - One kind can adjust prestressed supporting pile structure and construction method - Google Patents
One kind can adjust prestressed supporting pile structure and construction method Download PDFInfo
- Publication number
- CN107354947A CN107354947A CN201710618781.4A CN201710618781A CN107354947A CN 107354947 A CN107354947 A CN 107354947A CN 201710618781 A CN201710618781 A CN 201710618781A CN 107354947 A CN107354947 A CN 107354947A
- Authority
- CN
- China
- Prior art keywords
- anchor cable
- supporting pile
- supporting
- soil body
- reinforcement cage
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 41
- 239000002689 soil Substances 0.000 claims abstract description 69
- 230000002787 reinforcement Effects 0.000 claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 230000003014 reinforcing Effects 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 4
- 238000004873 anchoring Methods 0.000 claims description 41
- 230000011218 segmentation Effects 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 210000000481 Breast Anatomy 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000003252 repetitive Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims description 2
- 238000005345 coagulation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 101700030310 FUS Proteins 0.000 description 5
- 101700014034 Lcn3 Proteins 0.000 description 5
- 101700062818 NP Proteins 0.000 description 5
- 101710026336 S5 Proteins 0.000 description 5
- 101710023234 Segment 5 Proteins 0.000 description 5
- 230000000875 corresponding Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
Classifications
-
- 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
- E02D5/58—Prestressed concrete piles
Abstract
Can adjust prestressed supporting pile structure and construction method, the supporting pile structure the invention discloses one kind includes supporting pile body, anchor cable, the prestressing apparatus for applying pulling force and the bottom plate being horizontally set on the soil body；The supporting pile body is formed by concreting, and inside is provided with the steel reinforcement cage for being used for fixing anchor cable, the net metal body structure that the steel reinforcement cage is interfixed by some crisscross reinforcing bars；The supporting pile body is fixedly installed on the edge of the soil body；The anchor cable is arranged in supporting pile body, is fixedly connected with steel reinforcement cage.Anchor cable is embedded in support pile by the present invention together with steel reinforcement cage, can improve bearing capacity of the support pile to the soil body；The free segment of anchor cable is set to domes, can adjust the prestressing force on anchor cable in real time according to the load condition that the soil body is born, so as to be played a very good protection to surrounding environment and construction safety.The present invention also has the advantages of simple in construction, easy implementation, supporting effect is good.
Description
Technical field
The present invention relates to support pile field, more particularly to a kind of it is provided with prestress anchorage cable and can be pre- according to soil body load control
The construction method of the supporting pile structure of stress intensity and the support pile.
Background technology
The foundation pit support construction of architectural engineering is the basis of architectural engineering construction, as what down town was largely built gushes
Existing, base pit engineering is more and more, while the underground installation of the foundation ditch around of intensive building, big depth so that foundation ditch
Engineering support is widely paid attention to and applied.The main function of foundation pit supporting construction is support Tu Bi, in addition steel sheet pile, coagulation
The building enclosures such as native sheet pile and cement mixing pile also have different degrees of impermeable role concurrently.Original support pattern is mainly in stake
The side without soil do supporting, like that not only the later stage can wasting manpower and material resources' financial resources, and this can not be applied to it is various prominent
Heat condition, if foundation ditch upper load increases, it is possible to a supporting unstability can be caused.
Therefore, prior art requires further improvement and perfect.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide it is a kind of it is simple in construction, can be adjusted according to soil body load
Save the supporting pile structure of prestressing force size.
Another object of the present invention is to overcome the deficiencies in the prior art, there is provided a kind of applying based on above-mentioned supporting pile structure
Work method.
The purpose of the present invention is achieved through the following technical solutions：
One kind can adjust prestressed supporting pile structure, and the supporting pile structure mainly includes supporting pile body, anchor cable, is used for
The bottom plate for applying the prestressing apparatus of pulling force and being horizontally set at the top of the soil body.The supporting pile body is by concreting
Form, inside is provided with the steel reinforcement cage for being used for fixing anchor cable, and the steel reinforcement cage is interfixed by some crisscross reinforcing bars and formed
Net metal body structure.The supporting pile body is fixedly installed on the edge of the soil body, makes supporting pile body is unilateral to be connect with the soil body
Touch and receive the active force of the soil body, be i.e. the side of supporting pile body is contacted with the soil body, and opposite side vacantly (is not supported, also do not had
The soil body).The anchor cable is arranged in supporting pile body, is fixedly connected with steel reinforcement cage.
Specifically, the supporting pile body is from bottom to top divided into fixed part, supporting part and connecting portion.The fixed part insertion
Below ground, fixed with ground.The side of the supporting part directly contacts with the soil body, bears soil body load.The connecting portion with
Bottom plate is fixedly connected, and is made to form frame structure between supporting pile body and bottom plate, is lifted the bearing capacity to the soil body, realize to enclosing
The further supporting and retaining system of the soil body and the purpose of reinforcing firmly.
Specifically, the anchor cable is from bottom to top divided into anchoring section, free segment and linkage section.The anchoring section and free segment are set
Put in supporting pile body.Anchoring section is located at the bottom of supporting pile body, is fixedly connected with steel reinforcement cage, realizes consolidating for anchor cable one end
It is fixed.The domed structure of free segment, arches upward to the opposite direction of the soil body, and the span of free segment crosses over whole supporting part, from support
One end of plate extends to the other end.The linkage section is located at outside supporting pile body, is connected with prestressing apparatus.The prestressing force dress
The top for being arranged on bottom plate is put, is fixed respectively with bottom plate, i.e., bottom plate connects and composes fixed structure with supporting pile body, and pre-
The fixing point for answering power apparatus is not bottom plate or support pile, but other fixing points in addition to bottom plate and support pile.After fixation
Prestressing apparatus applies pulling force to anchor cable, anchor cable is produced corresponding prestressing force to the soil body on supporting part, so as to realize the soil body
Supporting and retaining system.During work, only the pulling force that prestressing apparatus applies to anchor cable need to be adjusted according to the load difference carried on the soil body, i.e.,
Adjustment supporting pile body can be achieved corresponding prestressed size is produced to the soil body, so that the soil body is supported and reinforced, it is ensured that
Support pile surrounding enviroment and the safety of workmen.
As the preferred scheme of the present invention, in order that the anchoring section of anchor cable is fixed in fixed part, prestressing apparatus is avoided
Anchor cable is integrally extracted out when applying pulling force, therefore, anchoring section of the present invention is set straight down, perpendicular to the ground, so as to increase
Add the stability of anchor cable.The frictional force when purpose so designed is to increase application prestressing force between anchoring section and concrete,
The displacement of anchoring section is limited, the anchoring section of anchor cable is securely seated between in fixed part, is not easy to be drawn out when applying prestressing force,
So that prestressed application is more accurate reliable.
As the preferred scheme of the present invention, in addition to above-mentioned vertical structure, anchoring section of the present invention can also be set to
Helicoidal structure.Compared with the vertical structure of anchoring section, the anchoring section of helicoidal structure is combined more firm with fixed part, in advance should be applied
The limit of power is bigger, and the scope of application is wider, but step is more, structure is complex when helicoidal structure is constructed, therefore expend
Time is longer, and anchoring section construction is simple, the step of vertical structure are few, easy to operate, therefore construction period is shorter.
As the preferred scheme of the present invention, the depth of the fixed part is consistent with the length of anchoring section, is set to 4 meters；It is described
The height of supporting part is set to 11 meters, and the value of the height needs to be determined according to the foundation depth of reality.
As the preferred scheme of the present invention, in order to improve bearing capacity of the support pile to the soil body, bottom plate of the present invention is adopted
Formed with concreting, its thickness be set to 1 meter and with supporting pile body formed by integrally casting.After bottom plate formed by integrally casting, support pile
It is integral with sole shape, supporting and retaining system is carried out to the soil body simultaneously from the middle part after the bottom of support pile, top and application prestressing force,
The load and reliability of support pile can further be improved, it is ensured that the construction safety on support pile periphery.
Another object of the present invention is achieved through the following technical solutions：
A kind of construction method that can adjust prestressed supporting pile structure, the construction method mainly comprise the following steps：
Step S1:Measurement soil body load condition simultaneously determines the size and construction location of support pile；
Step S2:The coordinate of construction location is checked, total powerstation is set up and the position coordinates of support pile is inputted on instrument, from
And determine specific construction location；
Step S3:Segmentation is cut the earth, and is segmented and is constructed retaining wall.
Step S4:Reinforcing bar and stirrup are got up using crisscross mode colligation, form steel reinforcement cage.
Step S5:The anchoring section of anchor cable and free segment are separately fixed on steel reinforcement cage.
Step S6:The model of support pile is built around a circle with template in the hole dug out, while bottom is built on the soil body
The model of plate.
Step S7:The good steel reinforcement cage of colligation is put into support pile model, and poured into support pile model and bottom plate model
Build concrete, conserved after concrete setting shaping and form removal, last repetitive segment cuts the earth, constructs retaining wall to designing chi
It is very little；
As the preferred scheme of the present invention, the step S7 also includes according to field engineering geological conditions, the anchoring of anchor cable
Section and free segment use primary concreting concrete, are conserved more than 28 days after pouring, with the strong of concrete curing to 28 day age
Spend and carried out an acceptance inspection as the intensity level of on-site concrete component, to judge whether the intensity of on-site concrete is qualified, and to anchor cable
Carry out pre- tensioning.
Step S8:The linkage section of anchor cable is connected with prestressing apparatus, and sets the pulling force for needing to apply；
Apply pulling force as the preferred scheme of the present invention, in the step S8 and use post stretching, anchor cable is implemented repeatedly more
Level tensioning process, specific steps include each beam anchor cable is pulled into arch by pre- tensioning first, when every grade of tensioning will stablize one section
Between so as to prestressed transmission and adjustment in anchor cable；Time interval twice between tensioning is longer, and second of tensioning is in first time
The basicly stable rear progress of prestressing force of drawing, to make up loss of prestress.
As the preferred scheme of the present invention, in the step S3 segmentation cut the earth at intervals of 1 meter every section, to increase support pile
The structural stability of body.
Working process and principle of the invention are：Anchor cable is embedded in support pile by the present invention together with steel reinforcement cage, its
The anchoring section of stream line is vertical structure or helicoidal structure, can increase the frictional force with concrete, be applied in prestressing apparatus
When adding pulling force, it is not easy to integrally extract anchor cable out, improve and apply the prestressed limit, so as to improve carrying of the support pile to the soil body
Ability；In addition, the free segment of anchor cable is set to domes, and apply appropriate prestressing force in construction, when being worked after construction
The prestressing force on anchor cable can be adjusted in real time according to the load condition that the soil body is born, so that support pile has corresponding carrying
Ability is played a very good protection with adapting to the change of soil body load to surrounding environment and construction safety；In addition, at the top of the soil body
The bottom plate that integral framework is formed with support pile is additionally provided with, because the fixing point of prestressing apparatus and bottom plate is different, therefore in advance should
Both the application of power and the fixation of bottom plate can improve supporting and reinforcement ability of the support pile to the soil body, so as to improve the soil body
Load.The present invention also has the advantages of simple in construction, easy implementation, supporting effect is good.
Compared with prior art, the present invention has further the advantage that：
(1) adjustable prestressed supporting pile structure provided by the present invention optimizes original support pattern, by anchor cable
With being nuzzled in advance in prestressed pile in advance together with steel reinforcement cage, by applying prestressing force at the top of anchor cable, to reach the effect of supporting, greatly
Facilitate the use in engineering greatly.
(2) it is provided by the present invention to can adjust prestressed supporting pile structure according to different situations, can be on anchor cable top
Portion applies different prestressing force, to adapt to various emergency situations, greatly adds overall stability.
(3) supporting performance provided by the present invention that can adjust prestressed supporting pile structure and add stake, and in advance
Pre-buried anchor cable, the outside supporting of later stage stake is eliminated, it is time saving and energy saving.
(4) adjustable prestressed supporting pile structure provided by the present invention adds concrete pier and mixed at the top of the soil body
Native bottom plate is coagulated, considerably increases overall structural and stability.
Brief description of the drawings
Fig. 1 is the structural representation provided by the present invention that can adjust prestressed supporting pile structure.
Fig. 2 is the force analysis figure of anchor cable provided by the present invention and prestressing apparatus junction.
Label declaration in above-mentioned accompanying drawing：
1- fixed parts, 2- supporting parts, 3- connecting portions, 4- anchoring sections, 5- free segments, 6- linkage sections, 7- bottom plates, 8- prestressing force
Device, the 9- soil bodys.
Embodiment
To make the objects, technical solutions and advantages of the present invention clearer, clear and definite, develop simultaneously embodiment pair referring to the drawings
The present invention is described further.
Embodiment 1：
As depicted in figs. 1 and 2, the invention discloses one kind can adjust prestressed supporting pile structure, the supporting pile structure
It is main to include supporting pile body, anchor cable, the prestressing apparatus 8 for applying pulling force and the bottom for being horizontally set on the top of the soil body 9
Plate 7.The supporting pile body is formed by concreting, and inside, which is provided with, is used to fixing the steel reinforcement cage of anchor cable, the steel reinforcement cage by
The net metal body structure that some crisscross reinforcing bars interfix.The supporting pile body is fixedly installed on the soil body 9
Edge, make supporting pile body is unilateral to be contacted with the soil body 9 and receive the active force of the soil body 9, i.e., the side of supporting pile body with it is native
Body 9 contacts, and opposite side is hanging (not supporting, also without the soil body 9).The anchor cable is arranged in supporting pile body, with steel reinforcement cage
It is fixedly connected.
Specifically, the supporting pile body is from bottom to top divided into fixed part 1, supporting part 2 and connecting portion 3.The fixed part 1
Embedded below ground, is fixed with ground.The side of the supporting part 2 directly contacts with the soil body 9, bears the load of the soil body 9.The company
Socket part 3 is fixedly connected with bottom plate 7, is made to form frame structure between supporting pile body and bottom plate 7, is lifted the carrying energy to the soil body 9
Power, realize to the 9 further supporting and retaining system of the soil body surrounded and the purpose of reinforcing.
Specifically, the anchor cable is from bottom to top divided into anchoring section 4, free segment 5 and linkage section 6.The anchoring section 4 and freedom
Section 5 is arranged in supporting pile body.Anchoring section 4 is located at the bottom of supporting pile body, is fixedly connected with steel reinforcement cage, realizes anchor cable one
The fixation at end.The 5 domed structure of free segment, arches upward to the opposite direction of the soil body 9, and the span of free segment 5 supports across whole
Portion 2, the other end is extended to from one end of supporting plate.The linkage section 6 is located at outside supporting pile body, is connected with prestressing apparatus 8.
The prestressing apparatus 8 is arranged on the top of bottom plate 7, is fixed respectively with bottom plate 7, i.e., bottom plate 7 is connected with supporting pile body
Fixed structure is formed, and the fixing point of prestressing apparatus 8 is not bottom plate 7 or support pile, but in addition to bottom plate 7 and support pile
Other fixing points.Prestressing apparatus 8 after fixation applies pulling force to anchor cable, anchor cable is produced accordingly to the soil body 9 on supporting part 2
Prestressing force, so as to realize the supporting and retaining system of the soil body 9.During work, only prestressing force need to be adjusted according to the load difference carried on the soil body 9
The pulling force that device 8 applies to anchor cable, you can realize that adjustment supporting pile body produces corresponding prestressed size to the soil body 9, so as to
The soil body 9 is set to be supported and reinforce, it is ensured that support pile surrounding enviroment and the safety of workmen.
As the preferred scheme of the present invention, in order that the anchoring section 4 of anchor cable is fixed in fixed part 1, prestressing force is avoided to fill
Anchor cable is integrally extracted out when putting 8 application pulling force, therefore, anchoring section 4 of the present invention is set straight down, perpendicular to the ground, from
And increase the stability of anchor cable.The purpose so designed is to increase rubbing between anchoring section 4 and concrete when applying prestressing force
Power is wiped, the displacement of anchoring section 4 is limited, the anchoring section 4 of anchor cable is securely seated between in fixed part 1, when applying prestressing force not
Easily it is drawn out, so that prestressed application is more accurate reliable.
As the preferred scheme of the present invention, in addition to above-mentioned vertical structure, anchoring section 4 of the present invention can also be set to
Helicoidal structure.Compared with 4 vertical structure of anchoring section, the anchoring section 4 of helicoidal structure is combined more firm, application with fixed part 1
The prestressed limit is bigger, and the scope of application is wider, but step is more, structure is complex when helicoidal structure is constructed, therefore consumes
The time taken is longer, and the construction is simple of anchoring section 4, the step of vertical structure are few, easy to operate, therefore construction period is shorter.
As the preferred scheme of the present invention, the depth of the fixed part 1 is consistent with the length of anchoring section 4, is set to 4 meters；Institute
The height for stating supporting part 2 is set to 11 meters, and the value of the height needs to be determined according to the foundation depth of reality.
As the preferred scheme of the present invention, in order to improve bearing capacity of the support pile to the soil body 9, bottom plate 7 of the present invention
Formed using concreting, its thickness be set to 1 meter and with supporting pile body formed by integrally casting.After the formed by integrally casting of bottom plate 7, supporting
Stake and bottom plate 7 form one, and the soil body 9 is propped up simultaneously from the middle part after the bottom of support pile, top and application prestressing force
Gear, it can further improve the load and reliability of support pile, it is ensured that the construction safety on support pile periphery.
The invention also discloses a kind of construction method that can adjust prestressed supporting pile structure, the construction method is mainly wrapped
Include following steps：
Step S1:The measurement load condition of the soil body 9 simultaneously determines the size and construction location of support pile；
Step S2:The coordinate of construction location is checked, total powerstation is set up and the position coordinates of support pile is inputted on instrument, from
And determine specific construction location；
Step S3:Segmentation is cut the earth, and is segmented and is constructed retaining wall.
Step S4:Reinforcing bar and stirrup are got up using crisscross mode colligation, form steel reinforcement cage.
Step S5:The anchoring section 4 of anchor cable and free segment 5 are separately fixed on steel reinforcement cage.
Step S6:The model of support pile is built around a circle with template in the hole dug out, while bottom is built on the soil body 9
The model of plate 7.
Step S7:The good steel reinforcement cage of colligation is put into support pile model, and poured into support pile model and the model of bottom plate 7
Build concrete, conserved after concrete setting shaping and form removal, last repetitive segment cuts the earth, constructs retaining wall to designing chi
It is very little；
As the preferred scheme of the present invention, the step S7 also includes according to field engineering geological conditions, the anchoring of anchor cable
Section 4 and free segment 5 use primary concreting concrete, are conserved more than 28 days after pouring, with concrete curing to 28 day age
Intensity carries out an acceptance inspection as the intensity level of on-site concrete component, to judge whether the intensity of on-site concrete is qualified, and to anchor
The pre- tensioning of Suo Jinhang.
Step S8:The linkage section 6 of anchor cable is connected with prestressing apparatus 8, and sets the pulling force for needing to apply；
Apply pulling force as the preferred scheme of the present invention, in the step S8 and use post stretching, anchor cable is implemented repeatedly more
Level tensioning process, specific steps include each beam anchor cable is pulled into arch by pre- tensioning first, when every grade of tensioning will stablize one section
Between so as to prestressed transmission and adjustment in anchor cable；Time interval twice between tensioning is longer, and second of tensioning is in first time
The basicly stable rear progress of prestressing force of drawing, to make up loss of prestress.
As the preferred scheme of the present invention, in the step S3 segmentation cut the earth at intervals of 1 meter every section, to increase support pile
The structural stability of body.
Working process and principle of the invention are：Anchor cable is embedded in support pile by the present invention together with steel reinforcement cage, its
The anchoring section 4 of stream line is vertical structure or helicoidal structure, can increase the frictional force with concrete, in prestressing apparatus 8
When applying pulling force, it is not easy to integrally extract anchor cable out, improve and apply the prestressed limit, so as to improve support pile to the soil body 9
Bearing capacity；In addition, the free segment 5 of anchor cable is set to domes, and apply appropriate prestressing force, work after construction in construction
The load condition that can be born when making according to the soil body 9 adjusts the prestressing force on anchor cable in real time, so that support pile has accordingly
Bearing capacity to adapt to the change of the load of the soil body 9, surrounding environment and construction safety are played a very good protection；In addition,
The top of the soil body 9 is additionally provided with the bottom plate 7 that integral framework is formed with support pile, because the fixing point of prestressing apparatus 8 and bottom plate 7 differs
Sample, therefore both prestressed application and the fixation of bottom plate 7 can improve supporting and reinforcement ability of the support pile to the soil body 9,
So as to improve the load of the soil body 9.The present invention also has the advantages of simple in construction, easy implementation, supporting effect is good.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (9)
1. one kind can adjust prestressed supporting pile structure, it is characterised in that be drawn including supporting pile body, anchor cable, for applying
The prestressing apparatus of power and the bottom plate being horizontally set on the soil body；The supporting pile body is formed by concreting, internal
Provided with the steel reinforcement cage for fixing anchor cable, net metal that the steel reinforcement cage is interfixed by some crisscross reinforcing bars
Body structure；The supporting pile body is fixedly installed on the edge of the soil body；The anchor cable is arranged in supporting pile body, with steel reinforcement cage
It is fixedly connected；
The supporting pile body is from bottom to top divided into fixed part, supporting part and connecting portion, and the fixed part is embedded in below ground, with
Ground is fixed, and the one side of the supporting part directly contacts with the soil body, bears soil body load, and the connecting portion is fixed with bottom plate to be connected
Connect；The anchor cable is from bottom to top divided into anchoring section, free segment and linkage section, and the anchoring section and free segment are arranged on support pile sheet
In vivo, anchoring section is located at the bottom of supporting pile body, is fixedly connected with steel reinforcement cage, the domed structure of free segment, to the soil body
Opposite direction arch upward, and cross over whole supporting part, the linkage section is located at outside supporting pile body, is connected with prestressing apparatus；Institute
The top that prestressing apparatus is arranged on bottom plate is stated, is fixed respectively with bottom plate, the prestressing apparatus after fixing applies to anchor cable
Pulling force simultaneously produces prestressing force on supporting part.
2. it is according to claim 1 can adjust prestressed supporting pile structure, it is characterised in that the anchoring section vertically to
Lower setting, it is perpendicular to the ground.
3. according to claim 1 can adjust prestressed supporting pile structure, it is characterised in that the anchoring section is spiral
Shape structure.
4. according to claim 1 can adjust prestressed supporting pile structure, it is characterised in that the depth of the fixed part
It is consistent with the length of anchoring section, it is set to 4 meters；The height of the supporting part is set to 11 meters.
5. according to claim 1 can adjust prestressed supporting pile structure, it is characterised in that the bottom plate uses coagulation
Soil, which pours, to be formed, its thickness be set to 1 meter and with supporting pile body formed by integrally casting.
6. a kind of construction method that can adjust prestressed supporting pile structure, it is characterised in that comprise the following steps：
Step S1:Measurement soil body load condition simultaneously determines the size and construction location of support pile；
Step S2:The coordinate of construction location is checked, total powerstation is set up and the position coordinates of support pile is inputted on instrument, so as to really
Fixed specific construction location；
Step S3:Segmentation is cut the earth, and is segmented and is constructed retaining wall；
Step S4:Reinforcing bar and stirrup are got up using crisscross mode colligation, form steel reinforcement cage；
Step S5:The anchoring section of anchor cable and free segment are separately fixed on steel reinforcement cage；
Step S6:The model of support pile is built around a circle with template in the hole dug out, while bottom plate is built on the soil body
Model；
Step S7:The good steel reinforcement cage of colligation is put into support pile model, and poured into support pile model and bottom plate model mixed
Solidifying soil, is conserved after concrete setting shaping and form removal, last repetitive segment are cut the earth, construct retaining wall to design size；
Step S8:The linkage section of anchor cable is connected with prestressing apparatus, and sets the pulling force for needing to apply.
7. the construction method of prestressed supporting pile structure is can adjust according to claim 6, it is characterised in that the step
In S3 segmentation cut the earth at intervals of 1 meter every section.
8. the construction method of prestressed supporting pile structure is can adjust according to claim 6, it is characterised in that the step
Apply pulling force in S8 and use post stretching, implement repeatedly multistage tensioning process to anchor cable, specific steps include passing through pre- tensioning first
Each beam anchor cable is pulled into arch, every grade of tensioning will stablize a period of time so as to prestressed transmission and adjustment in anchor cable；Open twice
Time interval between drawing is longer, and second of tensioning is carried out after the prestressing force of first time tensioning is basicly stable, to make up prestressing force
Loss.
9. the construction method of prestressed supporting pile structure is can adjust according to claim 6, it is characterised in that the step
S7 also includes according to field engineering geological conditions, and the anchoring section and free segment of anchor cable use primary concreting concrete, after pouring
Maintenance more than 28 days, and pre- tensioning is carried out to anchor cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710618781.4A CN107354947A (en) | 2017-07-26 | 2017-07-26 | One kind can adjust prestressed supporting pile structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710618781.4A CN107354947A (en) | 2017-07-26 | 2017-07-26 | One kind can adjust prestressed supporting pile structure and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107354947A true CN107354947A (en) | 2017-11-17 |
Family
ID=60286196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710618781.4A Pending CN107354947A (en) | 2017-07-26 | 2017-07-26 | One kind can adjust prestressed supporting pile structure and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107354947A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115233691A (en) * | 2022-08-04 | 2022-10-25 | 中冶集团武汉勘察研究院有限公司 | Height difference processing supporting structure at basement branch station in soft soil area and construction method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1334380A (en) * | 2001-08-30 | 2002-02-06 | 上海市建工设计研究院 | Prestressed underground continuous wall |
| JP2007154413A (en) * | 2005-11-30 | 2007-06-21 | Marui Kensetsu:Kk | Soldier pile type earth retaining anchor type retaining wall and its construction method |
| CN101230577A (en) * | 2007-12-28 | 2008-07-30 | 中国科学院水利部成都山地灾害与环境研究所 | Construction method for vertical prestressed anchor rope friction pile slope-sliding prevention and treatment |
| CN102322060A (en) * | 2011-06-29 | 2012-01-18 | 安徽省建设工程勘察设计院 | Composite prestressing retaining pile |
| CN103195069A (en) * | 2013-04-01 | 2013-07-10 | 北京工业大学 | Method for shoring prestressed double-row-pile strong-constraint deep foundation pit |
| CN204456141U (en) * | 2014-12-09 | 2015-07-08 | 甘肃建筑职业技术学院 | A kind of pre-stress hollow antislide pile |
| KR101696916B1 (en) * | 2016-02-29 | 2017-01-16 | (주)한국리페어엔지니어링 | Construction method of permanent wall with retaining wall combined PHC pile and steel pipe |
| CN207331700U (en) * | 2017-07-26 | 2018-05-08 | 广东工业大学 | One kind adjusts prestressed supporting pile structure |
-
2017
- 2017-07-26 CN CN201710618781.4A patent/CN107354947A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1334380A (en) * | 2001-08-30 | 2002-02-06 | 上海市建工设计研究院 | Prestressed underground continuous wall |
| JP2007154413A (en) * | 2005-11-30 | 2007-06-21 | Marui Kensetsu:Kk | Soldier pile type earth retaining anchor type retaining wall and its construction method |
| CN101230577A (en) * | 2007-12-28 | 2008-07-30 | 中国科学院水利部成都山地灾害与环境研究所 | Construction method for vertical prestressed anchor rope friction pile slope-sliding prevention and treatment |
| CN102322060A (en) * | 2011-06-29 | 2012-01-18 | 安徽省建设工程勘察设计院 | Composite prestressing retaining pile |
| CN103195069A (en) * | 2013-04-01 | 2013-07-10 | 北京工业大学 | Method for shoring prestressed double-row-pile strong-constraint deep foundation pit |
| CN204456141U (en) * | 2014-12-09 | 2015-07-08 | 甘肃建筑职业技术学院 | A kind of pre-stress hollow antislide pile |
| KR101696916B1 (en) * | 2016-02-29 | 2017-01-16 | (주)한국리페어엔지니어링 | Construction method of permanent wall with retaining wall combined PHC pile and steel pipe |
| CN207331700U (en) * | 2017-07-26 | 2018-05-08 | 广东工业大学 | One kind adjusts prestressed supporting pile structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115233691A (en) * | 2022-08-04 | 2022-10-25 | 中冶集团武汉勘察研究院有限公司 | Height difference processing supporting structure at basement branch station in soft soil area and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102505636B (en) | Construction method of No.0 block of continuous rigid frame bridge of double-thin-wall pier | |
| CN104213717B (en) | Multi-storey building integration transformation method of construction | |
| CN105155724B (en) | A kind of construction method for the constructional column constructed simultaneously with frame structure filling wall | |
| CN104831639A (en) | Consolidation and release construction method for 0# blocks of ultra-wide non-uniform continuous beam | |
| CN111197312A (en) | L-shaped prestress pulling-anchoring engaged double-row pile foundation pit supporting structure and construction method thereof | |
| CN205531016U (en) | Precast concrete post component and connected node | |
| CN104947603A (en) | Reinforced concrete girder bridge girder reinforcing structure and method | |
| CN106759439A (en) | For the tower crane and its construction method of foundation ditch | |
| CN207331700U (en) | One kind adjusts prestressed supporting pile structure | |
| CN109252542B (en) | Tree root pile light retaining wall for road widening and construction method thereof | |
| CN204589831U (en) | A kind of rc beam bridge girder reinforcing construction | |
| CN110093929A (en) | A kind of underground engineering is along practice construction method and structure | |
| CN107974942B (en) | A kind of abrupt slope side rigid frame-continuous girder end bay construction method | |
| CN103104102A (en) | Construction method for underground storey-addition reconstruction | |
| CN106012849A (en) | Construction method for integral binding and hoisting for linear section steel bars of cantilever beam and bridge | |
| CN107227741B (en) | Basement supporting construction | |
| CN107354947A (en) | One kind can adjust prestressed supporting pile structure and construction method | |
| CN205637707U (en) | Swimming pool | |
| CN108775086A (en) | The additional assembled integral beam-column node structure and construction method for being closed connection reinforcing bar | |
| CN204780635U (en) | Super wide nonprismatic continuous beam 0# piece concreties and relieves construction structures | |
| CN212129160U (en) | Oblique-pulling foundation pit supporting structure for pile top | |
| CN106837163A (en) | Deep basal pit hook-hang type Emergency Ladder fabrication and installation construction method and Emergency Ladder | |
| CN103981799A (en) | Steel tube concrete string stiffness beam and construction method thereof | |
| CN103758207B (en) | Semi-prefabricated semi-cast-in-place type frame structure of integrated building and construction method thereof | |
| CN205205697U (en) | Keep on abutment stake platform combined type reinforced structure |
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 |