CN218970086U - A row of stifled comprehensive treatment system that is used for anti floating of basement structure to stop oozing - Google Patents
A row of stifled comprehensive treatment system that is used for anti floating of basement structure to stop oozing Download PDFInfo
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- CN218970086U CN218970086U CN202223284441.8U CN202223284441U CN218970086U CN 218970086 U CN218970086 U CN 218970086U CN 202223284441 U CN202223284441 U CN 202223284441U CN 218970086 U CN218970086 U CN 218970086U
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- tubular pile
- pipe
- bottom plate
- grouting
- pile
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- 238000007667 floating Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 230000035699 permeability Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 2
- 239000008234 soft water Substances 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract description 6
- 238000010276 construction Methods 0.000 description 20
- 238000000034 method Methods 0.000 description 16
- 238000005086 pumping Methods 0.000 description 12
- 239000010410 layer Substances 0.000 description 8
- 239000002002 slurry Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 239000002689 soil Substances 0.000 description 5
- 229910000278 bentonite Inorganic materials 0.000 description 4
- 239000000440 bentonite Substances 0.000 description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000003673 groundwater Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
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Abstract
The utility model discloses an anti-floating and anti-seepage comprehensive treatment system for a basement structure, which comprises a tubular pile, wherein the tubular pile is installed in a bottom plate, the bottom end of the tubular pile extends to the lower part of the bottom plate, a bottom sealing steel plate is arranged at the bottom end of the tubular pile, the tubular pile is formed by connecting a plurality of tubular pile sections, the bottom of the tubular pile section at the bottommost part of the tubular pile is a filter pipe section, a plurality of through holes are formed in the filter pipe section, a soft permeable pipe is lined in the filter pipe section, and a plurality of hole protection devices are arranged on the outer wall of the filter pipe section at intervals along the length direction of the filter pipe section. The utility model has the advantages that: the underground water flow can be guided, grouting is prevented from seepage, and a working environment is provided for plugging cracks of the underground structure; after the bottom plate is repaired, the whole bottom plate in the area is considered to be weakened to a certain extent, the pipe pile can be used as a worker Cheng Zhuang for blocking, the stress state of the bottom plate is relieved, the anti-floating capacity of the bottom plate is effectively increased while the leakage is blocked, and the leakage points of the underground structure are scientifically and comprehensively treated.
Description
Technical Field
The utility model relates to the technical field of basement structure leakage treatment, in particular to a floating-resistant and seepage-resistant comprehensive treatment system for removing blockage of a basement structure.
Background
The underground space is used as a foundation of a building and is in an underground water environment for a long time, and in recent years, the leakage condition of the existing underground structure is frequently found. The conventional leakage treatment method at present utilizes grouting materials such as polyurethane, water glass-cement dual slurry and the like to seal cracks on the back surface of a leakage area, and has the advantages of quick response and good short-term water sealing effect. However, the problem of durability of the material is gradually exposed when the material is used in the water leakage treatment process, on one hand, the change of the groundwater level causes that the material is easy to generate foam shrinkage under the action of dry and wet circulation, so that the material is adhered and peeled off from the surface of the concrete, and a new leakage channel is formed at the peeling interface. In addition, when the soil layer below the basement has pressure-bearing groundwater, a conventional polyurethane plugging method is adopted, so that a movable water leakage point with a large hydraulic gradient cannot be plugged, a new waterproof curtain cannot be formed below the underground structure, and secondary leakage is extremely easy to occur at the weak part of the underground structure.
When the 'blocking' is easy to fail, a 'drainage' method is needed, namely, drainage is performed, the underground water pressure is reduced by applying pressure relief or a drainage hole, grouting construction is performed after the pressure of the underground water is reduced, the method is simple in principle and convenient to construct, good short-term effects are produced in many cases, but the leakage of the underground structure is caused by the damage of the underground structure due to the anti-floating failure of the basement, the integral anti-floating performance of the structure cannot be greatly improved by simple grouting, and the slurry is extremely easy to be taken away by the underground water flow to continuously produce a leakage channel due to long-term flushing of the underground water flow. The method can not radically treat the leakage of the basement to achieve the purpose of radical treatment. Therefore, the method is really suitable for solving the long-term effective method of large-area leakage of the basement, and not only is the 'drainage' and 'blocking' completed, but also the integral anti-floating capability of the underground structure is increased.
Disclosure of Invention
According to the defects of the prior art, the utility model provides the anti-floating and anti-seepage comprehensive treatment system for the basement structure, which can pump and drain underground water, grouting and plugging, seal cracks and effectively increase the anti-floating capacity of the basement structure after the underground water, grouting and plugging and sealing cracks are formed into a whole with the basement structure by arranging the tubular piles in the bottom plate.
The utility model is realized by the following technical scheme:
a row of stifled integrated management system that is used for anti floating of basement structure to stop oozing which characterized in that: including installing in the bottom plate and the bottom extend to the tubular pile of bottom plate below, the tubular pile bottom is provided with the back cover steel sheet, the tubular pile is formed by a plurality of tubular pile festival connection, the tubular pile is bottommost the bottom of tubular pile festival is the filter tube section, a plurality of through-holes have been seted up on the filter tube section, the filter tube section inside lining has soft water permeability pipe, the filter tube section outer wall is equipped with a plurality of hole protection devices along its length direction upper interval.
The hole protection device is conical.
The water pumping-grouting pipe extends to the outside of the pipe pile, and the bottom end of the water pumping-grouting pipe is connected with the submersible pump in the filter pipe section when the water is drained below the bottom plate; when plugging is carried out below the bottom plate, the top end of the pumping-grouting pipe extends out of the pipe pile and is connected with a grouting pump, and the bottom end of the pumping-grouting pipe is positioned in the filtering pipe section.
The grouting device comprises a pipe pile, and is characterized by further comprising a grouting pipe, wherein the bottom end of the grouting pipe is connected with a bag, the bottom end of the grouting pipe extends out of the pipe pile, and the top end of the grouting pipe extends out of the pipe pile and is connected with a grouting machine.
The tubular pile joints are connected through welding.
And the bottom sealing steel plate is welded on the bottom end of the tubular pile.
The utility model has the advantages that: the method is not only suitable for conventional basement leakage, but also can be used for solving the problem of underground structure leakage caused by punching of a confined water aquifer with larger dynamic water-hydraulic gradient; the underground water flow can be guided, grouting is prevented from seepage, and a working environment is provided for plugging cracks of the underground structure; after the bottom plate is repaired, the whole bottom plate in the area is considered to be weakened to a certain extent, the pipe pile can be used as a worker Cheng Zhuang for blocking, the stress state of the bottom plate is relieved, the anti-floating capacity of the bottom plate is effectively increased while the leakage is blocked, and the leakage points of the underground structure are scientifically and comprehensively treated.
Drawings
FIG. 1 is a schematic diagram of a multifunctional block-removing structure in a first embodiment;
FIG. 2 is a schematic diagram of a filter tube segment with a multifunctional plug removal structure in a first embodiment;
FIG. 3 is a flow chart of a construction for treating leakage by using a multifunctional blocking removing structure in the first embodiment;
FIG. 4 is a flow chart of a basement leak abatement construction in a mall in a second embodiment;
fig. 5 is a schematic view of a construction pouch grouting body in a third embodiment.
Detailed Description
The features of the utility model and other related features are described in further detail below by way of example in conjunction with the following figures to facilitate understanding by those skilled in the art:
as shown in fig. 1-5, the marks 1-11 are respectively represented by a bottom plate 1, a bottom sealing steel plate 2, a filter tube section 3, a through hole 4, a hole protection device 5, a water pumping-grouting pipe 6, a submersible pump 7, a grouting pipe 8, a grouting machine 9, a bag 10 and a bag grouting body 11.
Embodiment one: as shown in fig. 1-2, the embodiment relates to a comprehensive treatment system for anti-floating and anti-seepage of a basement structure, which mainly comprises a tubular pile which is installed in a bottom plate 1 and the bottom end of which extends to the lower part of the bottom plate 1, wherein the tubular pile is formed by connecting a plurality of tubular pile sections, the tubular pile sections can adopt a plurality of hollow tubular pipes such as steel pipes, PHC pipes and the like, the length of the tubular pile sections is 2-3 m, the pile connection during basement construction is facilitated, and the specific length can also be adjusted according to the clearance of the basement; pile segments are pressed by a counterforce frame or other small static pressure devices, and pile segments are welded for pile splicing construction. The bottom of the pipe pile joint at the bottommost part of the pipe pile is provided with a filter pipe section 3, the length of the filter pipe section 3 is 2m, a plurality of through holes 4 are formed in the filter pipe section 3, the diameter of each through hole 4 is 1cm, soft permeable pipes are lined in the filter pipe section 3, conical hole protection devices 5 are arranged on the outer wall of the filter pipe section 3 along the length direction at intervals, the upper parts of the hole protection devices 5 are large, the lower parts of the hole protection devices 5 are small, and the through holes 4 can be prevented from being damaged in the pile pressing process. The comprehensive treatment system for removing the blockage also comprises a water pumping-grouting pipe 6, wherein when the lower part of the bottom plate 1 is drained, the top end of the water pumping-grouting pipe 6 extends out of the pipe pile, and the bottom end of the water pumping-grouting pipe is connected with a submersible pump 7 in the filter pipe section 3; when the plugging is carried out on the lower part of the bottom plate 1, the top end of the water pumping-grouting pipe 6 extends out of the pipe pile and is connected with the grouting pump, and the bottom end of the water pumping-grouting pipe is positioned in the filter pipe section 3. The submerged pump 7 is placed in the pipe pile and used for pumping water, the submerged pump 7 is taken out after pumping water is completed, grouting construction can be carried out on the lower portion of the bottom plate 1 through the pumping water-grouting pipe 6 continuously, hole sealing is carried out after grouting is completed, an anti-floating structure whole is formed with the bottom plate 1 after hole sealing of the pipe pile, and anti-floating force of a basement is increased.
As shown in fig. 1 to 3, the present embodiment further has the following construction method:
1. the method comprises the steps of forming a hole with a diameter slightly larger than that of a pipe pile joint on a bottom plate 1, driving a steel bar anchor rod, installing a reaction frame on the bottom plate 1, pressing the pipe pile joint into the bottom plate 1 through the reaction frame, and splicing piles in a welding mode every time a certain depth is pressed into the bottom plate until the reaction frame is removed after the pile joint is pressed into the design depth. When the pipe pile is constructed to the design depth, the submerged pump 7 is arranged in the filter pipe section 3, the submerged pump 7 is used for connecting the water pumping pipe 6, the water pumping construction is carried out on the underground water below the bottom plate 1 through the submerged pump 7, the water collecting well is arranged in the pressure reducing area, the underground water is guided into the water collecting well and then is discharged by the water pumping pump, and the pressure reducing well is required to be arranged separately in places with serious leakage. The water head and the water pressure below the bottom plate 1 are reduced by pumping a large amount of groundwater, a soil-water pressure gauge is embedded in the bottom plate 1 by drilling before pumping, and the pumping stopping standard is judged by the change of the soil-water pressure.
2. After the bottom plate 1 is perforated to pump water for a certain time, the water pressure at the bottom of the plate is dissipated to a certain extent, then the hole is filled with grouting fluid in a sealing manner, the submersible pump 7 is disconnected with the bottom end of the water pumping pipe 6, the top end of the water pumping pipe 6 is connected with the grouting pump, the injection material is superfine bentonite cement mixed liquid, the main purpose is to reduce the permeability of soil under the plate in a leakage area, the grouting volume is determined according to the field implementation condition, the grouting is stopped when the leakage volume is greatly reduced or grouting fluid is discharged from a leakage point, and the grouting fluid is given a certain time for self-solidification. The superfine bentonite cement slurry has the advantages that the better fluidity and the good water-proof performance are utilized, the slurry is injected outside the side wall of the basement and at the lower part of the bottom plate 1 through the pipe piles, the superfine bentonite has the characteristics of low water absorption rate, good stability, low leakage coefficient and the like, the permeability of the underground soil layer in a water leakage area can be greatly reduced, the slurry is injected at the depth of an underground structure instead of the shallow part, the diffusion range of the slurry is larger, the thick water-proof layer can be effectively formed below the bottom plate 1, the existence of the underground structure can protect the slurry from being washed away by underground water, the water seepage path of the underground water flow is closed, and a construction environment is provided for repairing and sealing indoor cracks.
3. After grouting is finished for a period of time, when the leakage condition is obviously improved or leakage is temporarily avoided, aiming at the severe structural crack, the concrete in the leakage area at the upper part is chiseled out for construction, and a waterproof layer and a reinforced concrete protective layer are reapplied. If the basement is large-area leakage and a specific leakage point cannot be determined, the integral chiseling construction is needed to be carried out on the upper side of the bottom plate protection layer, and then the waterproof layer and the concrete protection layer are reapplied. After the crack is plugged, the structural steel bars are welded with the steel bars on the bottom plate 1, hole sealing construction is completed, and the structure and the bottom plate 1 are integrated.
Embodiment two: in the process of excavation of a foundation pit, the problem that the water collecting well structure plate breaks water seepage (large water quantity), a large amount of water gushes from the pressure-bearing water of the post-cast strip and water seepage of different degrees of partial bottom plates occurs in the construction of the basement structure because the pressure-bearing water of the soil body at the lower part of the foundation pit is not well precipitated.
Aiming at the on-site leakage condition, the proposed comprehensive leakage treatment method comprises the following steps:
1. for the obvious water inflow point and the area with larger leakage water yield of the post-cast strip, adopting a treatment scheme of pumping and pressure reducing and dewatering in combination, taking the limitation of construction conditions into consideration, adopting a construction process of static pressure of an anchor rod, forming holes in a raft plate and pressing a steel pipe phi 325 multiplied by 8 in static force, wherein the length of the steel pipe is 10m (the area of the unfinished post-cast strip is 6 m), entering the 8 th layer coarse sand to be not less than 3-7 m, and taking the steel pipe as a pressure reducing and dewatering pipe well, namely, lowering a submersible pump into the steel pipe to reduce the pressure and dewatering.
2. And (3) for the area with less seepage water yield, grouting by adopting an opening, wherein the grouting depth is within the range of 0.5m below the bottom plate, and the purpose is to block the communication of the pressure-bearing water and the communication of the foundation.
3. In order to prevent the basement from causing obvious floating, holes are formed on the whole bottom plate area at a certain distance for draining before the bottom plate is treated.
4. After the bottom plate is repaired, the whole bottom plate in the area is considered to be weakened to a certain extent, the water-reducing pipe well is used as engineering piles for plugging, and the stress state of the bottom plate is relieved.
As shown in fig. 4, the method for treating leakage of the basement of the mall comprises the following steps:
working condition one: and (5) preparing the approach construction, and determining the construction range.
Working condition II: and carrying out perforating operation on the bottom plate.
And (3) working condition III: constructing a 10m long well pipe, setting a submersible pump after static pressure is in place, and carrying out precipitation operation; and simultaneously, carrying out static pressure construction on the 6m long well pipe.
And (4) working condition four: and after the water level at the 10m well pipe is reduced to 0.5-1.0 m below the bottom of the plate, repairing the structure at the leakage part.
Working condition five: after the water level at the 6m well pipe is reduced to 0.5-1.0 m below the bottom of the plate, closing the post-pouring belt according to the construction node time of the basement; meanwhile, 14 water discharge holes are uniformly drilled on the bottom plate according to the scheme, a 2m multiplied by 2m reservoir is built on the outer side of each water discharge hole, the height of the wall of the reservoir is 30-50 cm, and sand bags are adopted to weigh the upper parts of the water discharge holes, so that soil loss is prevented.
Working condition six: and (5) carrying out grouting by opening holes at the local leakage points, and sealing holes in time after grouting is finished.
Working condition seven: and (5) carrying out well sealing treatment in batches according to the bottom plate repairing and post-pouring belt sealing progress.
Embodiment III: as shown in fig. 5, since the bottom sealing steel plate 2 and the pipe pile are lapped by spot welding, after the injection of the first grouting (superfine bentonite mixed solution) below the bottom plate 1 is completed, the bottom sealing steel plate 2 is ejected by a static pressure grouting machine, the grouting pipe 8 with the bag 10 extends out of the pipe pile for a certain distance, secondary grouting is performed, and a bag grouting body 11 is formed, and the bag grouting body 11 participates in the integral anti-floating work of the pipe pile, so that the anti-floating bearing capacity of the basement structure can be greatly increased.
The embodiment also has the following beneficial effects: the method is not only suitable for conventional basement leakage, but also can be used for solving the problem of underground structure leakage caused by punching of a confined water aquifer with larger dynamic water-hydraulic gradient; the underground water flow can be guided, grouting is prevented from seepage, and a working environment is provided for plugging cracks of the underground structure; after the bottom plate is repaired, the whole bottom plate in the area is considered to be weakened to a certain extent, the pipe pile can be used as a worker Cheng Zhuang for blocking, the stress state of the bottom plate is relieved, the anti-floating capacity of the bottom plate is effectively increased while the leakage is blocked, and the leakage points of the underground structure are scientifically and comprehensively treated.
Although the foregoing embodiments have been described in some detail with reference to the accompanying drawings, it will be appreciated by those skilled in the art that various modifications and changes may be made thereto without departing from the scope of the utility model as defined in the appended claims, and thus are not repeated herein.
Claims (6)
1. A row of stifled integrated management system that is used for anti floating of basement structure to stop oozing which characterized in that: including installing in the bottom plate and the bottom extend to the tubular pile of bottom plate below, the tubular pile bottom is provided with the back cover steel sheet, the tubular pile is formed by a plurality of tubular pile festival connection, the tubular pile is bottommost the bottom of tubular pile festival is the filter tube section, a plurality of through-holes have been seted up on the filter tube section, the filter tube section inside lining has soft water permeability pipe, the filter tube section outer wall is equipped with a plurality of hole protection devices along its length direction upper interval.
2. The anti-floating and anti-seepage comprehensive treatment system for a basement structure, as claimed in claim 1, is characterized in that: the hole protection device is conical.
3. The anti-floating and anti-seepage comprehensive treatment system for a basement structure, as claimed in claim 1, is characterized in that: the water pumping-grouting pipe extends to the outside of the pipe pile, and the bottom end of the water pumping-grouting pipe is connected with the submersible pump in the filter pipe section when the water is drained below the bottom plate; when plugging is carried out below the bottom plate, the top end of the pumping-grouting pipe extends out of the pipe pile and is connected with a grouting pump, and the bottom end of the pumping-grouting pipe is positioned in the filtering pipe section.
4. The anti-floating and anti-seepage comprehensive treatment system for a basement structure, as claimed in claim 1, is characterized in that: the grouting device comprises a pipe pile, and is characterized by further comprising a grouting pipe, wherein the bottom end of the grouting pipe is connected with a bag, the bottom end of the grouting pipe extends out of the pipe pile, and the top end of the grouting pipe extends out of the pipe pile and is connected with a grouting machine.
5. The anti-floating and anti-seepage comprehensive treatment system for a basement structure, as claimed in claim 1, is characterized in that: the tubular pile joints are connected through welding.
6. The anti-floating and anti-seepage comprehensive treatment system for a basement structure, as claimed in claim 1, is characterized in that: and the bottom sealing steel plate is welded on the bottom end of the tubular pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223284441.8U CN218970086U (en) | 2022-12-08 | 2022-12-08 | A row of stifled comprehensive treatment system that is used for anti floating of basement structure to stop oozing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223284441.8U CN218970086U (en) | 2022-12-08 | 2022-12-08 | A row of stifled comprehensive treatment system that is used for anti floating of basement structure to stop oozing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218970086U true CN218970086U (en) | 2023-05-05 |
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ID=86164998
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223284441.8U Active CN218970086U (en) | 2022-12-08 | 2022-12-08 | A row of stifled comprehensive treatment system that is used for anti floating of basement structure to stop oozing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218970086U (en) |
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2022
- 2022-12-08 CN CN202223284441.8U patent/CN218970086U/en active Active
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| CP03 | Change of name, title or address |
Address after: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee after: Shanghai Survey, Design and Research Institute (Group) Co.,Ltd. Address before: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee before: SGIDI ENGINEERING CONSULTING (Group) Co.,Ltd. |
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