CN115288204A - Waterproof construction method for basement exterior wall in deep foundation pit fertilizer groove - Google Patents
Waterproof construction method for basement exterior wall in deep foundation pit fertilizer groove Download PDFInfo
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- CN115288204A CN115288204A CN202210915202.3A CN202210915202A CN115288204A CN 115288204 A CN115288204 A CN 115288204A CN 202210915202 A CN202210915202 A CN 202210915202A CN 115288204 A CN115288204 A CN 115288204A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/18—Making embankments, e.g. dikes, dams
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a waterproof construction method for an outer wall of a basement in a deep foundation pit fertilizer groove, which comprises the following steps: assembling and splicing a mobile operation platform on a hard base layer arranged on the bottom of a fertilizer tank between a basement outer wall structure and a deep foundation pit supporting structure; carry out waterproof operation to each layer operation face by bottom to top, until the lateral wall of basement exterior wall structure all accomplishes waterproof operation, wherein: carrying out waterproof operation on the first-layer operation surface region by region along the length direction of the fertilizer tank, and immediately carrying out backfilling operation on the region where the waterproof operation is completed; when the last area of the working surface of the layer is subjected to waterproof operation, the corresponding number of standard knots of the mobile operating platform are removed and then the standard knots are assembled on the backfill soil again, and when the last area of the working surface of the layer is subjected to backfill soil operation, if the working surface which is not subjected to waterproof operation exists, the waterproof operation is continuously performed on the working surface of the upper layer. The invention realizes the synchronous operation of water prevention and backfilling operation based on the mobile operation platform, accelerates the construction progress and reduces the construction cost.
Description
Technical Field
The invention relates to a basement outer wall waterproof construction method in a deep foundation pit fertilizer groove based on a mobile operation platform, and belongs to the field of basement outer wall waterproof construction in the deep foundation pit fertilizer groove.
Background
At present, waterproof construction of basement exterior walls in deep foundation pit fertilizer grooves is widely popularized in various building projects, the construction process needs to be carried out by depending on a certain construction platform, and the existing method mainly adopts ladders, floor type scaffolds or fertilizer groove backfill compaction surfaces and the like as the construction platform. From practical implementation, the following defects exist in basement exterior wall waterproofing construction implemented in a deep foundation pit fertilizer trough based on the construction platforms: firstly, as for the method of adopting a ladder or a floor type scaffold as a construction platform, the construction difficulty is high, the construction process is long, the investment of time, manpower and material resources is high, many unsafe factors exist in the construction process, and the waterproof operation is inconvenient and smooth to develop; secondly, for the method of adopting a floor type scaffold as a construction platform, the whole deep foundation pit fertilizer tank needs to be fully built with the scaffold, the scaffold needs to be used all the time in the whole construction process, and the construction cost is caused to be overhigh due to factors such as lease expense of the scaffold and the like; thirdly, in the method of adopting the compacted surface of the backfill of the fertilizer groove as the construction platform, the construction can be carried out according to the sequence of backfilling the backfill with a certain elevation and compacting the backfill with a certain elevation in the fertilizer groove of the deep foundation pit, and the construction quality of the construction mode is poor because the one-time construction waterproof height is limited, and generally only 2m-3m of waterproof can be constructed, so that the backfill is high in frequency, easy to pollute and damage the position of a waterproof joint, the construction period is prolonged, the construction cost is increased, and the leakage risk of the outer wall of the basement is increased.
Disclosure of Invention
The invention aims to provide a waterproof construction method for the outer wall of a basement in a deep foundation pit fertilizer groove, which realizes the synchronous operation of waterproof operation and backfill operation based on a mobile operation platform, accelerates the construction progress, reduces the construction cost and ensures the construction quality.
In order to achieve the purpose, the invention adopts the following technical scheme:
a waterproof construction method for an outer wall of a basement in a deep foundation pit fertilizer groove is characterized by comprising the following steps:
1) The mobile operation platform is assembled and assembled on the hard base layer arranged on the bottom of the fertilizer groove between the basement outer wall structure and the deep foundation pit supporting structure, wherein: dividing the side wall of the underground outdoor wall structure which needs to be subjected to waterproof operation into a plurality of layers of operation surfaces along the vertical direction, and dividing the fertilizer groove into a plurality of areas along the length direction of the fertilizer groove;
2) Carry out waterproof operation to each layer operation face by bottom to top, until the lateral wall of basement exterior wall structure all accomplishes waterproof operation:
2-1) carrying out waterproof operation on the first-layer operation surface region by region along the length direction of the fertilizer tank, wherein backfilling operation is immediately carried out on the region where the waterproof operation is finished;
2-2) when the last area of the working surface of the layer is subjected to waterproof operation, disassembling a corresponding number of standard sections on the mobile operation platform, and then reassembling the mobile operation platform on a hard base layer arranged on the backfill soil of 2-1);
2-3) when the back filling operation is carried out on the last area of the layer of operation surface, if the operation surface which is not subjected to the waterproof operation still exists on the upper surface of the layer of operation surface, returning to execute 2-1), otherwise, entering 3);
3) Finishing;
wherein: the mobile operation platform comprises a columnar support frame, and the support frame is composed of a plurality of latticed columnar standard sections which can be assembled up and down; the bottom of the support frame is provided with a bottom pulley, and the two sides of the top of the support frame are respectively provided with a main truss and a secondary truss; a plurality of self-adaptive sliding opposite supports and a plurality of adjustable rigid opposite supports are arranged on two sides of the supporting frame; the lift carriage is connected with a lifting device arranged on the support frame, so that the lifting device can be used for realizing lifting and descending, and a worker can stand in the lift carriage to perform waterproof operation on a layer of operation surface; when the support frame is positioned in the fertilizer groove, the main pulleys arranged on the main trusses are embedded in the main rails arranged on the basement roof structure on the basement exterior wall structure and can roll along the main rails, and the secondary pulleys arranged on the secondary trusses are embedded in the secondary rails arranged on the deep foundation pit supporting structure and can roll along the secondary rails, so that the operation platform can move along the length direction of the fertilizer groove.
The invention has the advantages that:
the invention realizes the synchronous execution of the waterproof operation and the backfill operation based on the mobile operation platform, in other words, the invention makes the cross type flow line construction of the waterproof operation and the backfill operation possible by utilizing the mobile operation platform to move and use on each layer of operation surface, saves time and labor, quickens the construction progress, greatly reduces the construction cost, ensures the waterproof construction quality, reduces the risk of leakage of the basement outer wall, is safe and reliable in construction, is suitable for the waterproof construction of the basement outer wall in various sizes of fertilizer tanks, and is suitable for popularization.
Drawings
FIG. 1 is a schematic view of a mobile operating platform placed at the bottom of a deep foundation pit fertilizer groove.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is an enlarged schematic view of a portion B in fig. 1.
Fig. 4 is an enlarged schematic view of a portion C in fig. 1.
Fig. 5 is a schematic view of the mobile operation platform placed on backfill soil.
Detailed Description
The invention provides a waterproof construction method for an outer wall of a basement in a deep foundation pit fertilizer groove, which can be understood by referring to figures 1 to 5 and comprises the following steps:
1) The mobile operation platform is assembled and spliced on a hard base layer (not shown in the figure) arranged at the bottom of a fertilizer groove 80 between the basement outer wall structure 60 and the deep foundation pit supporting structure 70, wherein: the side wall 601 of the underground outdoor wall structure 60, which needs to be subjected to waterproof operation, is divided into a plurality of layers of operation surfaces (generally divided into 2 layers), and the fertilizer groove 80 is divided into a plurality of areas along the length direction of the fertilizer groove;
2) Waterproof operation is carried out on each layer of operation surface from bottom to top until the side wall 601 of the basement outer wall structure 60 completely completes the waterproof operation:
2-1) carrying out waterproof operation on the operation surface of the layer one by one in the length direction of the fertilizer tank, wherein the area completing the waterproof operation immediately carries out backfilling operation;
2-2) when the last area of the working surface on the layer is subjected to waterproof operation, removing a corresponding number of standard knots on the mobile operation platform according to actual working conditions such as the elevation of the working surface in the next construction, and then reassembling and assembling the mobile operation platform on a hard base layer (not shown in the figure) arranged on the backfill soil 90 in the layer 2-1) (which is understood by referring to fig. 5);
2-3) when the back filling operation is carried out on the last area of the layer of operation surface, if the operation surface which is not subjected to the waterproof operation still exists on the upper surface of the layer of operation surface, returning to execute 2-1), otherwise, entering 3);
3) Finishing the waterproof construction of the basement outer wall in the deep foundation pit fertilizer groove;
wherein: the mobile operation platform comprises a columnar support frame 10, and the support frame 10 consists of a plurality of latticed columnar standard sections which can be assembled up and down; the bottom of the support frame 10 is provided with a bottom pulley 43, and the top of the support frame 10 faces to the two sides of the basement outer wall structure 60 and the deep foundation pit supporting structure 70 and is provided with a main truss 21 and a secondary truss 22 respectively; a plurality of self-adaptive sliding diagonal braces 41 and a plurality of adjustable rigid diagonal braces 42 are respectively arranged on two sides of the support frame 10 facing the basement exterior wall structure 60 and the deep foundation pit supporting structure 70; the cage 51 is connected with a lifting device 52 installed on the support frame 10, so that the lifting device 52 can lift and descend to enable workers to stand in the cage 51 to perform waterproof operation on a layer of working surface; when the support frame 10 is located in the fertilizer tank 80, the main pulley 210 mounted on the main truss 21 is embedded in the main rail 31 arranged on the basement roof structure 61 above the basement exterior wall structure 60 and can roll along the main rail 31, and the secondary pulley 220 mounted on the secondary truss 22 is embedded in the secondary rail 32 arranged on the deep foundation pit supporting structure 70 and can roll along the secondary rail 32, so that the movement of the mobile operation platform along the length direction of the fertilizer tank is realized.
In the invention, the support frame 10, the bottom pulley 43, the main truss 21 and the main pulley 210 thereon, the secondary truss 22 and the secondary pulley 220 thereon, the main rail 31, the secondary rail 32, the lifting device 52, the suspension box 51, the adaptive sliding counter stay 41 and the adjustable rigid counter stay 42 of the mobile operation platform can be assembled on site.
In practical implementation, when the last area of the working surface at the uppermost layer is subjected to waterproof operation, the movable operating platform is directly disassembled and removed without being assembled again.
In the invention, the hard base layer is an overhanging raft or a steel plate liner, and is not limited. In the actual construction process, the hard base layer is detached or removed according to the condition.
In the invention, the waterproof operation comprises the steps that workers stand in the lift car 51 to brush waterproof paint, paste coiled materials and paste benzene plates of waterproof protective layers on the side wall 601 of the basement outer wall structure 60, and the backfilling operation comprises manual earthwork dumping and backfilling. The waterproofing and backfilling operations are well known in the art and are not described in detail herein.
In the actual design, the bottom pulley 43 is mounted on the bottom of the supporting frame 10 via a height-adjustable base (not shown), so that the supporting frame 10 can be quickly leveled.
When the support frame 10 moves in the fertilizer tank 80 along the length direction of the fertilizer tank by the bottom pulley 43, the main pulley 210 and the secondary pulley 220, the rollers 414 of the adjustable sliding counter stays 41 tightly abut against the side walls of the basement exterior wall structure 60 or the deep foundation pit supporting structure 70 to roll, and the top blocks 424 of the adjustable rigid counter stays 42 do not contact with the side walls of the basement exterior wall structure 60 and the deep foundation pit supporting structure 70.
When the support frame 10 moves in place along the length direction of the fertilizer tank in the fertilizer tank 80 by the bottom pulley 43, the main pulley 210 and the secondary pulley 220, the rollers 414 of the respective sliding counter stays 41 tightly abut against the side wall of the basement exterior wall structure 60 or the deep foundation pit supporting structure 70 in the locked state (non-rolling state), and the top blocks 424 of the respective adjustable rigid counter stays 42 tightly abut against the side wall of the basement exterior wall structure 60 or the deep foundation pit supporting structure 70.
As shown in fig. 3, the adaptive sliding counter support 41 includes a base 411 fixed on the supporting frame 10, and a support rod 412 is movably embedded on the base 411, that is, the support rod 412 can retract and extend relative to the base 411 but cannot be separated from the base 411, wherein: the supporting rod 412 is formed by connecting a thin rod 4121 and a thick rod 4122, the thin rod 4121 extends into the base 411, a spring 413 is sleeved on a part of the thin rod 4121 extending out of the base 411, the spring 413 is arranged between the thick rod 4122 outside the base 411 and the base 411, and a roller 414 with a self-locking function is rotatably arranged at the end part of the thick rod 4122 by 90 degrees; when the support frame 10 moves in the fertilizer trough 80, the roller 414 rotates until the round end faces towards the vertical direction, and under the elastic force of the spring 413, the roller 414 in the unlocked state is tightly pressed against the side wall of the basement exterior wall structure 60 or the deep foundation pit supporting structure 70 to roll; when the support frame 10 is moved to the right position in the fertilizer groove 80, the roller 414 rotates reversely until the round end faces to the horizontal direction, and is self-locked and can not roll, namely, is in a locking state.
Here, the roller 414 has a rolling surface and a rounded end surface, which is a rounded end surface of the roller 414 on which a rolling bearing is mounted. The structure of the roller 414 rotatably mounted on the support rod 412 by 90 ° is well known in the art, and the self-locking function can be realized by mounting an existing self-locking device, so that the detailed description is omitted.
In the invention, the spring design of the self-adaptive sliding counter-support 41 can adapt to the condition that the side walls of the basement outer wall structure 60 and the deep foundation pit supporting structure 70 are not flat, the roller 414 can smoothly slide, and the transverse top support of the self-adaptive sliding counter-support 41 effectively ensures the stability of the mobile operation platform in the static use or dynamic movement process.
As shown in fig. 4, the adjustable rigid support 42 includes a fixing seat 421 fixed on the support frame 10, a screw 422 is disposed on the fixing seat 421, one end of the adjusting rod 423 is movably screwed with the screw 422, and a top block 424 is installed at the other end of the adjusting rod 423, wherein: the jacking blocks 424 are tightly propped against the side wall of the basement exterior wall structure 60 or the deep foundation pit supporting structure 70 by screwing the adjusting rods 423 on the screw rods 422, and the jacking blocks 424 are separated from the side wall of the basement exterior wall structure 60 or the deep foundation pit supporting structure 70.
In practical design, the shape and size of the top block 424 are not limited. For example, as shown in fig. 4, the top block 424 may be a regular square block for directly abutting against the outer wall structure 60 of the underground pit or the side wall of the deep foundation pit supporting structure 70, and the top block 424 may also be an irregular inclined block for abutting against the I-steel 71 for anchor bolting of the deep foundation pit supporting structure 70.
The construction of I-steel 71 for anchor cable support on deep foundation pit supporting structure 70 is prior art and will not be described in detail herein.
In practical design, the adaptive sliding diagonal bracing 41 is suitable to be installed in pairs on the two sides of the support frame 10 facing the basement exterior wall structure 60 and the deep foundation pit supporting structure 70, so that the two adaptive sliding diagonal bracing 41 in pairs can be braced between the basement exterior wall structure 60 and the deep foundation pit supporting structure 70, and the whole mobile operation platform is transversely braced to improve the stability and the use safety.
Similarly, support frame 10 should be to adjustable rigidity pair brace 42 of installation towards the both sides of basement outer wall structure 60, deep basal pit supporting structure 70 to make two adjustable rigidity pairs brace 42 in pairs can the shore between basement outer wall structure 60 and deep basal pit supporting structure 70, thereby play the effect that horizontal shore improved stability and safety in utilization to whole mobile operation platform.
In the invention, the number and the positions of the self-adaptive sliding counter-bracing 41 and the adjustable rigid counter-bracing 42 which are arranged on the support frame 10 can be reasonably designed according to the actual requirements without limitation. For example, as shown in fig. 2, an adaptive sliding counter support 41 may be separately designed on the top side of the supporting frame 10.
In the invention, the adaptive sliding diagonal support 41 effectively ensures the stability in the moving process, and the adjustable rigid diagonal support 42 ensures the stability after the movement in place, so that the adaptive sliding diagonal support 41 and the adjustable rigid diagonal support 42 work cooperatively and are indispensable.
As fig. 2, main track 31 sets up on basement roof structure 61 along fertile groove length direction, and secondary track 32 sets up on deep basal pit supporting structure 70 along fertile groove length direction, wherein: two main sliding chutes are arranged on the main track 31, and a main pulley 210 with a self-locking function is movably embedded in each main sliding chute; two secondary chutes are arranged on the secondary track 32, and a secondary pulley 220 with a self-locking function is movably embedded in each secondary chute, which is not limited.
In addition, the number of the main rails 31 and the sub rails 32 is not limited, and for example, fig. 2 shows a case where two sub rails 32 are designed in parallel.
In the present invention, the main girders 21 and 31 and the sub girders 22 and 32 are designed to stably support the movement of a large steel structure such as a movable platform in the longitudinal direction of the fertilizer tank.
In the present invention, the lifting device 52 includes a driving motor 521 (such as a winch, etc.) mounted on the car 51, and the driving motor 521 is connected to a fixed shaft 523 fixed on the top of the supporting frame 10 by a traction cable 522, wherein: the traction wire rope 522 is wound and unwound by the driving motor 521 to raise and lower the car 51.
Generally, it is preferable that one driving motor 521 should be installed on each side of the cage 51. The cage 51 is mainly used for a construction worker to stand on for construction work. The form of the car 51 can be varied and is not limited.
Of course, other devices, such as an upper limit switch and a lower limit switch, can be designed for the lifting device 52 according to the construction requirement, without limitation.
In the invention, the standard knot can be composed of a cross rod, a vertical rod and an inclined strut without limitation.
In the invention, the height of the support frame 10 can be reasonably designed according to the situation of the fertilizer tank on the actual construction site, the rigidity of the support frame should ensure that the whole mobile operation platform is stably stressed, the bottom pulley can effectively play a role in rotation, and the like.
In the present invention, the supporting frame 10, the main truss 21, the sub-truss 22, the main rail 31, the sub-rail 32, the fixing seat 421, the screw 422, the adjusting rod 423 of the adjustable rigid diagonal brace 42, the base 411 of the adaptive sliding diagonal brace 41, the brace 412, etc. are all made of steel.
In practical implementation, it is preferable to continuously remove a corresponding number of standard knots from the lowest surface of the support frame 10, and after the removal of the standard knots is completed, by controlling the rolling of the main pulley 210 of the main truss 21 along the main rail 31 and the rolling of the secondary pulley 220 of the secondary truss 22 along the secondary rail 32, the main truss 21 and the secondary truss 22 drive the remaining undetached standard knots and the lifting devices 52 and the carriage 51 thereof to move to the hard base layer arranged on the backfill soil 90, and then at this time, the bottom pulley 43 is reinstalled at the bottom of the lowest standard knot, and the installation positions of the adaptive sliding pair 41 and the adjustable rigid pair 42 are adjusted on the corresponding standard knots.
Referring to FIG. 1, the width and length of the trough are shown.
The invention has the following beneficial effects:
1. the invention reduces unsafe factors in the construction process, has convenient construction and small difficulty, and can effectively save the cost of manpower, material resources, time and the like.
2. The invention can reduce the lease cost for fully erecting the scaffold for a long time in the deep foundation pit fertilizer groove, the movable operation platform only needs to simply disassemble a plurality of standard sections after one-time assembly, the whole movable operation platform does not need to be reassembled, time and labor are saved, excessive mechanical equipment and manpower are not needed, and the construction cost and time are saved.
3. The invention utilizes the mobile operation platform, greatly increases the height of the one-time construction waterproof working surface, greatly reduces the number of waterproof joints, and then the backfilling soil is not easy to cause pollution and damage to the positions of the waterproof joints in the backfilling process.
4. The invention can synchronously carry out the waterproof operation and the backfilling operation in the fertilizer groove, namely, the waterproof construction of the basement exterior wall can be continuously carried out at one time, the waterproof construction quality is guaranteed, the leakage risk of the basement exterior wall is reduced, the construction period is shortened, and the cost is reduced.
5. The mobile operation platform is simple in structure, convenient and fast to install, detach and assemble, simple to operate, capable of being repeatedly used in a turnover mode, and high in implementability and universality.
The above description is of the preferred embodiment of the present invention and the technical principles applied thereto, and it will be apparent to those skilled in the art that any changes and modifications based on the equivalent changes and simple substitutions of the technical solutions of the present invention are within the protection scope of the present invention without departing from the spirit and scope of the present invention.
Claims (10)
1. A waterproof construction method for an outer wall of a basement in a deep foundation pit fertilizer groove is characterized by comprising the following steps:
1) The mobile operation platform is assembled and assembled on the hard base layer arranged on the bottom of the fertilizer groove between the basement outer wall structure and the deep foundation pit supporting structure, wherein: dividing the side wall of the underground outdoor wall structure which needs waterproof operation into a plurality of layers of operation surfaces along the up-down direction, and dividing the fertilizer groove into a plurality of areas along the length direction of the fertilizer groove;
2) Carry out waterproof operation to each layer operation face by bottom to top, until the lateral wall of basement exterior wall structure all accomplishes waterproof operation:
2-1) carrying out waterproof operation on the first-layer operation surface region by region along the length direction of the fertilizer tank, wherein backfilling operation is immediately carried out on the region where the waterproof operation is finished;
2-2) when the last area of the working surface of the layer is subjected to waterproof operation, disassembling a corresponding number of standard sections on the mobile operation platform, and then reassembling the mobile operation platform on a hard base layer arranged on the backfill soil of 2-1);
2-3) when the back filling operation is carried out on the last area of the layer of operation surface, if the operation surface which is not subjected to the waterproof operation still exists on the upper surface of the layer of operation surface, returning to execute 2-1), otherwise, entering 3);
3) Finishing;
wherein: the mobile operation platform comprises a columnar support frame, and the support frame is composed of a plurality of latticed columnar standard sections which can be assembled up and down; the bottom of the support frame is provided with a bottom pulley, and the two sides of the top of the support frame are respectively provided with a main truss and a secondary truss; a plurality of self-adaptive sliding diagonal braces and a plurality of adjustable rigid diagonal braces are arranged on two sides of the supporting frame; the lift carriage is connected with a lifting device arranged on the support frame, so that the lifting device can be used for realizing lifting and descending, and a worker can stand in the lift carriage to perform waterproof operation on a layer of operation surface; when the support frame is positioned in the fertilizer groove, the main pulleys arranged on the main trusses are embedded in the main rails arranged on the basement roof structure on the basement exterior wall structure and can roll along the main rails, and the secondary pulleys arranged on the secondary trusses are embedded in the secondary rails arranged on the deep foundation pit supporting structure and can roll along the secondary rails, so that the operation platform can move along the length direction of the fertilizer groove.
2. The waterproof construction method for the outer wall of the basement in the deep foundation pit fertilizer groove as claimed in claim 1, wherein:
and when the last area of the working surface at the uppermost layer is subjected to waterproof operation, the mobile operation platform is directly disassembled and removed without being assembled again.
3. The waterproof construction method for the outer wall of the basement in the deep foundation pit fertilizer groove as claimed in claim 2, wherein:
the hard base layer is an outward-projecting raft plate or a steel plate liner.
4. The waterproof construction method for the outer wall of the basement in the deep foundation pit fertilizer groove as claimed in claim 1, wherein:
when the support frame moves in the fertilizer groove along the length direction of the fertilizer groove, the idler wheels of the self-adaptive sliding diagonal braces tightly abut against the side wall of the underground outdoor wall structure or the deep foundation pit supporting structure to roll, and the top blocks of the adjustable rigid diagonal braces do not contact with the side wall of the underground outdoor wall structure or the deep foundation pit supporting structure;
when the support frame moves in place along the length direction of the fertilizer groove in the fertilizer groove, the rollers of the self-adaptive sliding opposite supports tightly abut against the side wall of the underground outdoor wall structure or the deep foundation pit supporting structure in a locking state, and the ejector blocks of the adjustable rigid opposite supports tightly abut against the side wall of the underground outdoor wall structure or the deep foundation pit supporting structure.
5. The waterproof construction method for the outer wall of the basement in the deep foundation pit fertilizer groove as claimed in claim 4, wherein:
self-adaptation slip is to propping including being fixed in base on the support frame, the activity inlays on the base and is equipped with the vaulting pole, wherein: the support rod is formed by connecting a thin rod and a thick rod, the thin rod extends into the base, a spring is sleeved on the part of the thin rod extending out of the base, the spring is arranged between the thick rod outside the base and the base, and the end part of the thick rod is rotatably provided with the roller with a self-locking function at 90 degrees; when the support frame moves in the fertilizer groove, the roller rotates to the state that the round end faces towards the vertical direction, and the roller tightly abuts against the side wall of the underground chamber outer wall structure or the deep foundation pit supporting structure to roll under the elastic force of the spring; when the support frame moves in place in the fertilizer groove, the roller rotates reversely until the round end faces face towards the horizontal direction, and the roller can not roll after self-locking.
6. The waterproof construction method for the outer wall of the basement in the deep foundation pit fertilizer groove as claimed in claim 4, wherein:
adjustable rigidity is to propping including being fixed in fixing base on the support frame, the fixing base epirelief is equipped with the screw rod, adjusts the one end and the screw rod activity spiro union of pole, and install the other end of adjusting the pole the kicking block, wherein: the ejector block is tightly abutted against the side wall of the underground chamber outer wall structure or the deep foundation pit supporting structure through screwing the adjusting rod on the screw rod, and the ejector block is separated from the side wall of the underground chamber outer wall structure or the deep foundation pit supporting structure.
7. The waterproof construction method for the outer wall of the basement in the deep foundation pit fertilizer groove as claimed in claim 4, wherein:
the two sides of the support frame are provided with the self-adaptive sliding pair supports in pairs, so that the two self-adaptive sliding pair supports in pairs can be supported between the basement outer wall structure and the deep foundation pit supporting structure;
the adjustable rigidity is to propping to installing in pairs in the both sides of support frame to make two in pairs adjustable rigidity is to propping and is propped between basement outer wall structure and deep basal pit supporting construction.
8. The waterproof construction method for the outer wall of the basement in the deep foundation pit fertilizer groove as claimed in claim 1, wherein:
the main track sets up on basement roof structure along fertile groove length direction, the secondary track sets up on deep basal pit supporting structure along fertile groove length direction, wherein: two main sliding chutes are arranged on the main track, and a main pulley with a self-locking function is movably embedded in each main sliding chute; two secondary sliding grooves are formed in the secondary track, and a secondary pulley with a self-locking function is movably embedded in each secondary sliding groove.
9. The waterproof construction method for the outer wall of the basement in the deep foundation pit fertilizer groove as claimed in claim 8, wherein:
continuously removing a corresponding number of standard knots from the lowest surface of the support frame, controlling the main pulley of the main truss to roll along the main track and the secondary pulley of the secondary truss to roll along the secondary track after the standard knots are removed, enabling the main truss and the secondary truss to drive the residual standard knots, the lifting device and the carriage which are not removed to move to a hard base layer arranged on backfill soil, then reinstalling the bottom pulley at the bottom of the lowest standard knot at the moment, and adjusting the installation positions of the self-adaptive sliding pair brace and the adjustable rigid pair brace on the corresponding standard knots.
10. The waterproof construction method for the outer wall of the basement in the deep foundation pit fertilizer groove as claimed in claim 1, wherein:
the lifting device comprises a driving motor arranged on the lift car, the driving motor is connected with a fixed shaft fixed at the top of the support frame through a traction steel wire rope, wherein: the traction steel wire rope is wound and unwound under the action of the driving motor, so that the lift car can ascend and descend.
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| CN202210915202.3A CN115288204B (en) | 2022-08-01 | 2022-08-01 | Waterproof construction method for underground chamber outer wall in deep foundation pit fertilizer tank |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998015696A1 (en) * | 1996-10-07 | 1998-04-16 | Genghou Deng | A method of lifting structure from above to below |
| JP2001146842A (en) * | 1999-11-22 | 2001-05-29 | Abekogyosho Co Ltd | Building device for and building method of sidewall panel |
| CN206391026U (en) * | 2016-10-27 | 2017-08-11 | 吉林百合口腔医院股份有限公司 | A kind of miniature parallel machine for processing artificial tooth |
| CN113863330A (en) * | 2021-12-02 | 2021-12-31 | 中建八局第二建设有限公司 | Ultra-deep foundation pit narrow fertilizer groove concrete backfill structure and construction method |
-
2022
- 2022-08-01 CN CN202210915202.3A patent/CN115288204B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998015696A1 (en) * | 1996-10-07 | 1998-04-16 | Genghou Deng | A method of lifting structure from above to below |
| US6082058A (en) * | 1996-10-07 | 2000-07-04 | Deng; Genghou | Lifting method of building construction from top to bottom |
| JP2001146842A (en) * | 1999-11-22 | 2001-05-29 | Abekogyosho Co Ltd | Building device for and building method of sidewall panel |
| CN206391026U (en) * | 2016-10-27 | 2017-08-11 | 吉林百合口腔医院股份有限公司 | A kind of miniature parallel machine for processing artificial tooth |
| CN113863330A (en) * | 2021-12-02 | 2021-12-31 | 中建八局第二建设有限公司 | Ultra-deep foundation pit narrow fertilizer groove concrete backfill structure and construction method |
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| CN115288204B (en) | 2023-08-25 |
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