CN113653262B - Construction method for welding and descending of anti-slide pile reinforcement cage outside well in grading manner - Google Patents
Construction method for welding and descending of anti-slide pile reinforcement cage outside well in grading manner Download PDFInfo
- Publication number
- CN113653262B CN113653262B CN202110868417.XA CN202110868417A CN113653262B CN 113653262 B CN113653262 B CN 113653262B CN 202110868417 A CN202110868417 A CN 202110868417A CN 113653262 B CN113653262 B CN 113653262B
- Authority
- CN
- China
- Prior art keywords
- reinforcement cage
- construction
- descending
- slide
- bearing platform
- 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.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
-
- 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
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
Abstract
The invention discloses a construction method for welding and descending a slide-resistant pile reinforcement cage outside a well in a grading manner. Before the construction of the steel reinforcement cage, a retaining wall locking notch and a retaining wall of an anti-slide pile well opening are manufactured according to design requirements, and the flatness of the top surface of the retaining wall locking notch is guaranteed; the method comprises the following steps: installing a scaffold; step two: installing an anti-slide pile reinforcement cage descending device; step three: constructing a first-stage reinforcement cage; step four: the steel reinforcement cage is descended in a grading way; step five: constructing a next-stage reinforcement cage; and repeating the third step and the fourth step until the graded construction and the descending of the whole slide-resistant pile reinforcement cage are completed. The invention overcomes the defects that the prior art adopts underground manufacturing and installation of the reinforcement cage, needs large-scale hoisting equipment, is difficult to construct and the like; the method has the advantages of being simple and convenient in construction, capable of effectively reducing construction difficulty, free of large-scale hoisting equipment, capable of effectively guaranteeing construction quality of the reinforcement cage and capable of reducing temporary occupied area.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering construction, in particular to the field of landslide prevention engineering, and more particularly relates to a construction method for welding and graded descending of an anti-slide pile reinforcement cage outside a well.
Background
In landslide prevention and control projects, anti-slide piles are often used for retaining landslides. The traditional slide-resistant pile construction process mainly comprises the following two steps: firstly, manufacturing and installing a reinforcement cage inside an anti-slide pile well; and secondly, manufacturing a reinforcement cage outside the pile well, and then hoisting and installing the reinforcement cage by adopting a crane. During construction according to the first process, due to the fact that the anti-slide pile well is small in space, poor in air circulation and other objective conditions, vertical transportation of people, materials and machines is difficult, construction potential safety hazards exist, and construction quality of a reinforcement cage is difficult to effectively control. When the construction is carried out according to the second process, if the pile length of the anti-slide pile is very long and the self weight of the steel reinforcement cage is large, a steel reinforcement cage prefabricating field and larger hoisting equipment are correspondingly needed, but landslide prevention engineering construction is often limited by the terrain, an operation surface is difficult to expand, large hoisting equipment cannot enter the field, and the steel reinforcement cage hoisting construction is difficult to realize or the construction cost is too high.
Therefore, a construction process which is simple in construction, can effectively reduce construction difficulty, does not need large-scale hoisting equipment and can effectively guarantee construction quality of the reinforcement cage is urgently needed to be developed.
Disclosure of Invention
The invention aims to provide a construction method for welding and descending the anti-slide pile reinforcement cage outside a well, which is simple and convenient to construct, can effectively reduce the construction difficulty, does not need large-scale hoisting equipment, can effectively ensure the construction quality of the reinforcement cage, and reduces the temporary floor area.
In order to achieve the purpose, the technical scheme of the invention is as follows: the construction method for welding and descending the anti-slide pile reinforcement cage outside the well is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
before the construction of the steel reinforcement cage, a retaining wall locking notch and a retaining wall of an opening of an anti-slide pile well are manufactured according to design requirements, and the flatness of the top surface of the retaining wall locking notch is guaranteed;
the method comprises the following steps: installing a scaffold;
a scaffold is arranged at the opening of the anti-slide pile;
step two: installing a construction bearing platform;
installing a construction bearing platform at the locking notch of the slide-resistant pile retaining wall; the construction bearing platform is used as a construction bearing platform of the first-stage reinforcement cage;
step three: constructing a first-stage reinforcement cage;
firstly, laying a first row of stirrups on a construction bearing platform, then carrying out welding construction on longitudinal steel bars of the anti-slide pile, and controlling the verticality of the longitudinal steel bars through a scaffold;
then, performing stirrup in the first-stage steel reinforcement cage stage, wherein the stirrup is connected with each longitudinal bar in a welding manner; completing the construction of the first-stage stirrup;
step four: the steel reinforcement cage is descended in a grading way;
installing an anti-slide pile reinforcement cage descending device; supporting the finished first-stage steel reinforcement cage by a steel reinforcement cage descending device, and dismantling a construction bearing platform of the first-stage steel reinforcement cage arranged at the anti-slide pile retaining wall locking notch in the second step; the first-stage steel reinforcement cage is slowly descended along with the anti-slide pile steel reinforcement cage descending device by adjusting the anti-slide pile steel reinforcement cage descending device; after the anti-slide pile reinforcement cage descending device descends to the lowest point, fixing the reinforcement cage through a construction bearing platform or the anti-slide pile reinforcement cage descending device, and using the reinforcement cage as a construction bearing platform for the next stage of reinforcement cage; dismantling the anti-slide pile reinforcement cage descending device;
step five: constructing a second-stage reinforcement cage;
repeating the third step and the fourth step to complete the construction and graded descending of the second-stage reinforcement cage;
step six: and repeating the fifth step until the graded construction and the descending of the whole slide-resistant pile reinforcement cage are completed.
In the technical scheme, the anti-slide pile reinforcement cage descending device comprises a descending support platform and a jack;
the descending supporting platform is arranged at the upper end of the jack.
In the technical scheme, the construction bearing platform consists of a plurality of I-shaped steel.
In the technical scheme, in the third step, the first row of stirrups is laid on the construction bearing platform, and then the welding construction of the longitudinal steel bars of the slide-resistant pile is carried out.
In the above technical solution, in the fourth step, when the device for lowering the anti-slide pile cage is installed, a jack in an extended state is installed at the lock opening of the retaining wall, and a lowering support platform is installed at the top of the jack.
In the technical scheme, in the fourth step, when the construction bearing platform is dismantled, the length of the jack is adjusted to enable the construction bearing platform to be loosened, and then the construction bearing platform is drawn out.
In the technical scheme, in the fourth step, when the anti-slide pile reinforcement cage descending device is dismantled, firstly, the jack is lowered to enable the jack to descend to be close to the lowest position; inserting a construction bearing platform along the position of the retaining wall locking notch to serve as a construction bearing platform for the next-stage reinforcement cage; then, lowering the jack to the lowest position to enable the reinforcement cage to completely descend to the upper surface of the construction bearing platform, and drawing out the descending supporting platform and the jack, wherein the construction bearing platform is located at the top end of the first-stage reinforcement cage, and the first-stage reinforcement cage is fixed on the construction bearing platform;
or in the fourth step, when the anti-slide pile reinforcement cage descending device is dismantled, firstly, the jack is lowered to enable the jack to descend to the lowest position, and the descending support platform which bears the reinforcement cage and descends to the lock hole of the edge protecting wall serves as a construction bearing platform for the next-stage reinforcement cage; and then, the jack is drawn out, at the moment, the descending supporting platform is positioned at the top end of the first-stage reinforcement cage, and the first-stage reinforcement cage is fixed on the descending supporting platform.
The invention has the following advantages:
(1) The method is simple and convenient to construct, can effectively reduce the construction difficulty, does not need large hoisting equipment, can effectively ensure the construction quality of the reinforcement cage, and reduces the temporary floor area;
(2) According to the construction scheme, the manufacturing of the steel reinforcement cage is carried out outside the anti-slide pile well, the operation surface is large, and people, materials and machines do not need to frequently go into and out of the well; the defects that the quality is difficult to control and the construction safety of operating personnel is difficult to guarantee due to the adoption of an underground reinforcement cage for construction in the prior art are overcome; the defects that landslide prevention engineering construction is often limited by terrain, an operation surface is difficult to unfold, large hoisting equipment cannot enter a field, hoisting construction of a reinforcement cage is difficult to realize, or construction cost is too high are avoided;
(3) According to the construction scheme, special ventilation equipment is not needed, the health of operators can be effectively protected, and the engineering cost is saved; the defect that the traditional construction scheme needs to be constructed underground is overcome;
(4) According to the construction scheme, the manufacturing and descending of the reinforcement cage are carried out outside the anti-slide pile well, and the manufacturing of the reinforcement cage can be completed outside the anti-slide pile well on the construction bearing platform made of the I-shaped steel; the descending operation of the reinforcement cage can be completed by adopting a common hydraulic jack and a descending supporting platform, the entering of hoisting equipment is not needed, and the construction site has no great requirement; the defects of large operation surface and large occupied area caused by hoisting construction in the prior art are overcome.
Drawings
Fig. 1 is a schematic structural view of the present invention, which provides a scaffold at an opening of a slide-resistant pile shaft as a reinforcing bar support structure.
Fig. 2 is a schematic structural diagram of the construction bearing platform arranged at the hole of the slide-resistant pile well.
Fig. 3 is a schematic structural view of the first-stage reinforcement cage manufacturing on the construction bearing platform according to the present invention.
Fig. 4 is a schematic structural diagram of the present invention in which a descending support platform is disposed on the top of a completed first-stage reinforcement cage, and a jack is disposed at the lower end of the descending support platform.
Fig. 5 is a schematic structural view of the construction bearing platform drawn out after the descending supporting platform and the jack are installed.
Fig. 6 is a schematic view of the arrangement of the slide-resistant pile cage lowering device of the present invention lowered to a position close to the opening of the slide-resistant pile shaft.
Fig. 7 is a schematic structural view of a manufacturing platform for a next-stage reinforcement cage, in which a construction bearing platform is inserted into a descending first-stage reinforcement cage.
Fig. 8 is a schematic structural view of the construction platform in fig. 7, which is disassembled.
Fig. 9 is a schematic structural view of the present invention for manufacturing the next-stage reinforcement cage on the construction platform.
In the figure, 1-a scaffold, 1.1-a reinforcement cage longitudinal bar limiting structure, 2-an anti-slide pile reinforcement cage descending device, 2.1-a descending supporting platform, 2.2-a jack, 3-an anti-slide pile reinforcement cage, 3 a-a longitudinal bar, 3 b-a stirrup, 3.1-a first-stage reinforcement cage, 4-an anti-slide pile well, 4.1-a wall protection locking notch, 4.2-a wall protection and 5-a construction bearing platform.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be clear and readily understood by the description.
The method is suitable for construction conditions that the slope surface of the slide-resistant pile is complex in terrain and the operation surface is difficult to unfold due to the limitation of the terrain; the anti-slide pile reinforcement cage descending device is adopted to carry out the grading construction outside the reinforcement cage well, the reinforcement cage descends step by step, the welding construction of the reinforcement cage is completely finished outside the well (at the well mouth), the construction quality of the reinforcement cage can be effectively ensured, and the construction potential safety hazard is reduced; the simple descending device does not need large-scale hoisting equipment, does not need a large construction operation surface, and has greater adaptability to terrains.
With reference to the accompanying drawings: the construction method for welding and descending the anti-slide pile reinforcement cage outside the well in a grading way comprises the following steps,
before the construction of the steel reinforcement cage 3, a retaining wall locking notch 4.1 and a retaining wall 4.2 of an orifice of an anti-slide pile well 4 are made according to design requirements, and the flatness of the top surface of the retaining wall locking notch 4.1 is ensured; the flatness of the top surface of the locking opening is controlled during construction, and the verticality of the later-stage reinforcement cage is greatly controlled;
the method comprises the following steps: installing a scaffold;
after the anti-slide pile well is excavated and supported, a scaffold 1 is arranged at the orifice of an anti-slide pile well 4, a longitudinal bar limiting structure 1.1 of a reinforcement cage is arranged on the scaffold 1, and the scaffold is used as a side supporting structure of the reinforcement cage;
step two: installing a construction bearing platform;
a construction bearing platform 5 which supports the weight of the reinforcement cage, assists the reinforcement cage to descend in a grading manner and serves as a construction platform of the anti-slide pile reinforcement cage is arranged at a position of a retaining wall locking notch 4.1 of the anti-slide pile, and the construction bearing platform 5 serves as a construction bearing platform of a first-stage reinforcement cage; constructing an initial working surface on the construction bearing platform 5;
step three: constructing a first-stage reinforcement cage;
firstly, laying a first row of stirrups 3b on a construction bearing platform 5, then carrying out welding construction on longitudinal steel bars 3a of the slide-resistant piles, and controlling the verticality of the longitudinal steel bars 3a through a scaffold 1;
then, the stirrups 3b in the first-stage steel reinforcement cage construction stage are carried out, and the stirrups 3b are ensured to be connected with each longitudinal steel bar 3a through welding; completing the construction of the first-stage reinforcement cage 3.1; the construction height of the first-stage steel reinforcement cage corresponds to the stroke of the anti-slide pile steel reinforcement cage descending device (the manufacturing height of the steel reinforcement cage is preferably 2 m); each row of stirrups should be measured by a leveling rod to ensure the levelness of the stirrups;
step four: the steel reinforcement cage descends in grades;
adjusting the anti-slide pile reinforcement cage descending device 2, supporting the finished first-stage reinforcement cage 3.1 by the reinforcement cage descending device 2, and dismantling the construction bearing platform 5 of the first-stage reinforcement cage arranged at the anti-slide pile protection wall locking notch 4.1 in the second step; the first-stage reinforcement cage 3.1 is enabled to synchronously and slowly descend along with the anti-slide pile reinforcement cage descending device 2 by adjusting the jack 2.2; after the anti-slide pile reinforcement cage descending device 2 descends to the lowest point, fixing the reinforcement cage through a construction bearing platform 5 or the anti-slide pile reinforcement cage descending device 2, and using the reinforcement cage as an operation surface for carrying out next-stage reinforcement cage; dismantling the anti-slide pile reinforcement cage descending device 2;
step five: constructing a next-stage reinforcement cage;
repeating the third step and the fourth step to complete the construction and the graded descending of the next-stage reinforcement cage;
step six: and repeating the third step and the fourth step until the graded construction and graded descending of the whole slide-resistant pile reinforcement cage 3 are completed and the slide-resistant pile reinforcement cage is installed in place. According to the invention, the anti-slide pile reinforcement cage descending device is used for constructing and descending the reinforcement cage in the anti-slide pile hole opening in a grading manner, so that the construction cost is saved, the construction of the reinforcement cage is carried out outside the anti-slide pile hole, the operation surface is large, the construction quality of the anti-slide pile is ensured, and the anti-slide pile is safe and efficient.
Further, the anti-slide pile reinforcement cage descending device 2 comprises a descending support platform 2.1 and a jack 2.2;
the descending supporting platform 2.1 is arranged at the upper end of the jack 2.2; the descending supporting platform 2.1 and the jack 2.2 work cooperatively; according to the invention, the I-shaped steel (namely the descending supporting platform 2.1) and the jack (or other small hoisting equipment with the effect similar to that of the jack) are adopted, so that the construction difficulty can be effectively reduced, large hoisting equipment is not needed, the construction quality of the reinforcement cage can be effectively ensured, the temporary floor area is reduced, the engineering investment is further saved to a certain extent, and the construction is safe and efficient.
Further, the construction bearing platform 5 is composed of a plurality of I-shaped steel; the construction bearing platform 5 with an I-shaped steel structure is arranged at the position of the locking notch of the slide-resistant pile, and the I-shaped steel is used as the construction bearing platform of the steel reinforcement cage of the slide-resistant pile; the type and the number of the I-shaped steel meet the weight of a reinforcement cage supported in a corresponding construction stage, the number of the I-shaped steel serving as a construction bearing platform of the slide-resistant pile reinforcement cage is more than or equal to 2, the type and the number of the needed I-shaped steel are calculated and determined according to the self weight of the reinforcement cage, the selected I-shaped steel can penetrate through the stirrup of the reinforcement cage, the strength of the I-shaped steel can resist the self weight of the reinforcement cage, and the design safety factor of the selected I-shaped steel is more than or equal to 1.5.
Further, in the fourth step, when the anti-slide pile reinforcement cage descending device 2 is installed, a jack 2.2 in an extending state is installed at the position of a retaining wall locking notch 4.1 of the anti-slide pile, a descending support platform 2.1 is installed at the top of the jack 2.2, and the descending support platform 2.1 is composed of a plurality of I-shaped steel beams; namely, after the first-stage reinforcement cage is manufactured, a descending support bearing platform made of I-shaped steel is installed at the stirrup at the uppermost part of the finished first-stage reinforcement cage, and the descending support bearing platform and the first-stage reinforcement cage are supported by a plurality of jacks (the number of the jacks is calculated according to the weight of the reinforcement cage). The descending supporting platform is used for supporting the steel reinforcement cage in the descending process of the steel reinforcement cage, and can be directly used as a new construction bearing platform after the steel reinforcement cage descends to the operation surface, the next-level steel reinforcement cage construction operation is carried out on the new construction bearing platform, and the working procedures and the cost are saved.
The construction bearing platform and the descending support platform have the same structure. The descending supporting platform descends to a locking notch of the pile well protecting wall to form a construction bearing platform of a next-stage reinforcement cage; and the I-shaped steel of the construction bearing platform disassembled at the previous stage can be directly used as a descending support platform arranged at the upper end of the jack 2.2 and used for supporting the steel reinforcement cage when the steel reinforcement cage at the next stage is constructed, and the whole anti-slide pile steel reinforcement cage is finally manufactured after the above-mentioned cycle use.
Further, in the fourth step, when the construction bearing platform 5 is dismantled, the extension length of the jack 2.2 is adjusted to loosen the construction bearing platform 5, and then the construction bearing platform 5 is drawn out (namely after the jack is lifted up and lowered by a small amount to support the bearing platform, I-shaped steel of the construction bearing platform is drawn out);
and in the stage of the graded descending of the first-stage reinforcement cage 3.1, the descending heights of the jacks 2.2 are synchronously adjusted to ensure the verticality of the reinforcement cage.
Furthermore, in step four, when the anti-slide pile cage lowering device 2 is dismantled, the jack 2.2 is lowered first, so that the jack 2.2 is lowered to be close to the lowest position; the first-stage reinforcement cage and the descending support bearing platform synchronously descend; in the descending process, a plurality of jacks at the wellhead descend coordinately and synchronously to ensure that the first-stage reinforcement cage can descend vertically; inserting a construction bearing platform 5 serving as a construction bearing platform for a next-stage reinforcement cage along the position of a retaining wall locking notch 4.1 of the slide-resistant pile; then, the jack 2.2 is lowered to the lowest position, so that the reinforcement cage is completely lowered onto the construction bearing platform 5, the lowering supporting platform 2.1 and the jack 2.2 are drawn out, at the moment, the construction bearing platform 5 is located at the top end of the first-stage reinforcement cage 3.1, and the first-stage reinforcement cage 3.1 is fixed on the construction bearing platform;
or in the fourth step, when the anti-slide pile reinforcement cage descending device 2 is dismantled, firstly, the jack 2.2 is lowered to the lowest position, and the descending support platform 2.1 which bears the reinforcement cage and descends to the position along the retaining wall locking notch 4.1 is used as a construction bearing platform for the next-stage reinforcement cage; then, the jack 2.2 is pulled out, at this time, the descending supporting platform 2.1 is located at the top end of the first-stage reinforcement cage 3.1, and the first-stage reinforcement cage 3.1 is fixed on the descending supporting platform 2.1.
Furthermore, in the fifth step, the verticality of the longitudinal reinforcements of the reinforcement cage and the levelness of the stirrups of the reinforcement cage are continuously controlled in the construction of the next-stage reinforcement cage.
In order to more clearly illustrate the advantages of the construction method for welding and descending the slide-resistant pile cage outside the well, compared with the prior art, the two technical schemes are compared by the staff, and the comparison results are as follows:
the construction method has the advantages that compared with the prior art, the construction method for welding and descending the anti-slide pile reinforcement cage outside the well is simple and convenient, construction difficulty can be effectively reduced, large hoisting equipment is not needed, construction quality of the reinforcement cage can be effectively guaranteed, temporary floor area is reduced, and under the conditions that landslide prevention engineering is limited by terrain, an operation surface is difficult to expand and large hoisting equipment cannot enter the field, the construction method can achieve the engineering aims of guaranteeing construction quality of the anti-slide pile, saving construction cost, being safe in construction and efficient to a certain extent.
Other parts not described belong to the prior art.
Claims (6)
1. The construction method for welding and descending the anti-slide pile reinforcement cage outside the well is characterized by comprising the following steps: the manufacturing of the steel reinforcement cage is completed outside the anti-slide pile well on the construction bearing platform; constructing and descending the reinforcement cage in grades at the hole opening of the slide-resistant pile through the slide-resistant pile reinforcement cage descending device;
the specific method comprises the following steps of,
before the construction of the steel reinforcement cage, a retaining wall locking notch (4.1) and a retaining wall (4.2) of an orifice of an anti-slide pile well (4) are manufactured according to design requirements, and the flatness of the top surface of the retaining wall locking notch (4.1) is ensured;
the method comprises the following steps: installing a scaffold;
arranging a scaffold (1) at an orifice of the anti-slide pile well (4);
step two: installing a construction bearing platform;
installing a construction bearing platform (5) which supports the weight of the reinforcement cage, assists the reinforcement cage to descend in a grading manner and serves as a construction platform of the anti-slide pile reinforcement cage at a position of a retaining wall locking notch (4.1) of the anti-slide pile, wherein the construction bearing platform (5) serves as a construction bearing platform of a first-stage reinforcement cage; constructing an initial operation surface on the construction bearing platform (5);
step three: constructing a first-stage reinforcement cage;
firstly, laying a first row of stirrups (3 b) on a construction bearing platform (5), then carrying out welding construction on longitudinal reinforcements (3 a) of the slide-resistant pile, and controlling the verticality of the longitudinal reinforcements (3 a) through a scaffold (1);
then, performing stirrup (3 b), wherein the stirrup (3 b) is connected with each longitudinal steel bar (3 a) by welding; completing the construction of a first-stage reinforcement cage (3.1);
step four: the steel reinforcement cage descends in grades;
installing an anti-slide pile reinforcement cage descending device (2); supporting the finished first-stage steel reinforcement cage (3.1) by a steel reinforcement cage descending device (2), and dismantling a construction bearing platform (5) of the first-stage steel reinforcement cage, which is arranged at the position of the anti-slide pile retaining wall locking notch (4.1) in the second step; the first-stage steel reinforcement cage (3.1) is slowly descended along with the slide-resistant pile steel reinforcement cage descending device (2) by adjusting the slide-resistant pile steel reinforcement cage descending device (2); after the anti-slide pile reinforcement cage descending device (2) descends to the lowest point, fixing the reinforcement cage through a construction bearing platform (5) or the anti-slide pile reinforcement cage descending device (2) and using the reinforcement cage as a construction bearing platform for carrying out the next stage of reinforcement cage; dismantling the anti-slide pile reinforcement cage descending device (2);
step five: constructing a second-stage reinforcement cage;
repeating the third step and the fourth step to complete the construction and graded descending of the second-stage reinforcement cage;
step six: and repeating the fifth step until the graded construction and the descending of the whole slide-resistant pile reinforcement cage (3) are completed.
2. The method of claim 1, wherein the method comprises the steps of: the anti-slide pile reinforcement cage descending device (2) comprises a descending support platform (2.1) and a jack (2.2);
the descending supporting platform (2.1) is arranged at the upper end of the jack (2.2).
3. The method of claim 2, wherein the method comprises the steps of: the construction bearing platform (5) is composed of a plurality of I-shaped steel.
4. The method of claim 3, wherein the method comprises the following steps: in the fourth step, when the slide-resistant pile reinforcement cage descending device (2) is installed, a jack (2.2) in an extension state is installed at the position of a retaining wall locking notch (4.1) of the slide-resistant pile, and a descending support platform (2.1) is installed at the top of the jack (2.2).
5. The method of claim 4, wherein the method comprises the following steps: in the fourth step, when the construction bearing platform (5) is dismantled, the length of the jack (2.2) is adjusted to loosen the construction bearing platform (5), and then the construction bearing platform (5) is pulled out.
6. The method of claim 5, wherein the method comprises the steps of: in the fourth step, when the anti-slide pile reinforcement cage descending device (2) is dismantled, firstly, the jack (2.2) is lowered, so that the jack (2.2) is lowered to be close to the lowest position; inserting a construction bearing platform (5) along the position of the retaining wall locking notch (4.1) to serve as a construction bearing platform for the next-stage reinforcement cage; then, the jack (2.2) is lowered to the lowest position, the reinforcement cage is completely descended to the upper surface of the construction bearing platform (5), the descending supporting platform (2.1) and the jack (2.2) are drawn out, at the moment, the construction bearing platform (5) is positioned at the top end of the first-stage reinforcement cage (3.1), and the first-stage reinforcement cage (3.1) is fixed on the construction bearing platform (5);
or in the fourth step, when the anti-slide pile reinforcement cage descending device (2) is dismantled, firstly, the jack (2.2) is lowered to the lowest position, and the descending support platform (2.1) which bears the reinforcement cage and descends to the position along the retaining wall locking notch (4.1) is used as a construction bearing platform for the next-stage reinforcement cage; and then, the jack (2.2) is pulled out, at the moment, the descending supporting platform (2.1) is positioned at the top end of the first-stage reinforcement cage (3.1), and the first-stage reinforcement cage (3.1) is fixed on the descending supporting platform (2.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110868417.XA CN113653262B (en) | 2021-07-30 | 2021-07-30 | Construction method for welding and descending of anti-slide pile reinforcement cage outside well in grading manner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110868417.XA CN113653262B (en) | 2021-07-30 | 2021-07-30 | Construction method for welding and descending of anti-slide pile reinforcement cage outside well in grading manner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113653262A CN113653262A (en) | 2021-11-16 |
| CN113653262B true CN113653262B (en) | 2022-12-30 |
Family
ID=78479032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110868417.XA Active CN113653262B (en) | 2021-07-30 | 2021-07-30 | Construction method for welding and descending of anti-slide pile reinforcement cage outside well in grading manner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113653262B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1136292A (en) * | 1997-07-16 | 1999-02-09 | East Japan Railway Co | Spiral bar winding device and spiral bar winding method |
| JP2001159134A (en) * | 1999-12-02 | 2001-06-12 | Kajima Corp | Cage-building method |
| CN110029671A (en) * | 2019-04-29 | 2019-07-19 | 中国建筑第七工程局有限公司 | A kind of steep slope pile foundation steel bar cage transfers construction technology using aperture bracket section by section |
| CN110526153A (en) * | 2019-09-16 | 2019-12-03 | 中国建筑土木建设有限公司 | A kind of jack auxiliary pile foundation steel bar cage hangs structure and its construction method |
| CN111676960A (en) * | 2020-05-29 | 2020-09-18 | 重庆建工第四建设有限责任公司 | Construction method for pre-splicing stirrups of large rectangular piles in complex site |
-
2021
- 2021-07-30 CN CN202110868417.XA patent/CN113653262B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1136292A (en) * | 1997-07-16 | 1999-02-09 | East Japan Railway Co | Spiral bar winding device and spiral bar winding method |
| JP2001159134A (en) * | 1999-12-02 | 2001-06-12 | Kajima Corp | Cage-building method |
| CN110029671A (en) * | 2019-04-29 | 2019-07-19 | 中国建筑第七工程局有限公司 | A kind of steep slope pile foundation steel bar cage transfers construction technology using aperture bracket section by section |
| CN110526153A (en) * | 2019-09-16 | 2019-12-03 | 中国建筑土木建设有限公司 | A kind of jack auxiliary pile foundation steel bar cage hangs structure and its construction method |
| CN111676960A (en) * | 2020-05-29 | 2020-09-18 | 重庆建工第四建设有限责任公司 | Construction method for pre-splicing stirrups of large rectangular piles in complex site |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113653262A (en) | 2021-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2715034B1 (en) | Drilling rig system with self-elevating drill floor | |
| CN106193055A (en) | A kind of subway foundation pit liftable support system and lifting construction method thereof | |
| CN110820950B (en) | Integral synchronous jacking construction method for large-span combined type overweight eccentric slope angle steel structure | |
| CN211340800U (en) | Super dark foundation ditch earthwork excavation platform structure | |
| CN113653262B (en) | Construction method for welding and descending of anti-slide pile reinforcement cage outside well in grading manner | |
| CN110318559B (en) | Rescue reinforcement device and method for cultural relics and buildings | |
| CN110589690B (en) | Climbing method of internal climbing tower crane in narrow space | |
| CN110847188A (en) | Ultra-deep foundation pit earth excavation platform structure and construction method thereof | |
| CN217358337U (en) | Monitoring structure is consolidated in cylinder conversion | |
| CN212052780U (en) | Oblique supporting type deep foundation pit supporting structure | |
| CN107795271A (en) | Climbing ladder apparatus and the method for lower well thereon for artificial digging pile | |
| JPH1061193A (en) | Method of building steel frame structure and device therefor | |
| CN109798139B (en) | Frame structure suitable for protection of giant karst cave and construction method thereof | |
| CN217810546U (en) | Bridge foundation lifting type construction platform | |
| JP2780571B2 (en) | Reinforcing cage construction equipment | |
| CN219910654U (en) | Spliced construction platform | |
| CN220035392U (en) | Integral hoisting fine-adjustment positioning structure for large-tonnage steel pipe pile support | |
| CN115387586B (en) | Lifting platform for foundation pit reverse construction and construction method | |
| CN220014599U (en) | Foundation pit construction ladder | |
| CN110847616B (en) | Method for mounting large-volume steel frame flue | |
| CN212958643U (en) | Simple tunnel working platform capable of lifting and laterally extending | |
| CN116657946A (en) | Wall fixing structure and construction method of newly-added underground space of building using same | |
| CN220790585U (en) | Integral climbing steel platform die carrier | |
| CN217758990U (en) | Static load testing device for existing building pile raft foundation pile | |
| CN115324106B (en) | Construction method for optimizing intermittent stopping point of synchronous reverse construction technology |
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 |