CN117188808A - Concrete wall construction method, concrete wall construction device and concrete wall - Google Patents
Concrete wall construction method, concrete wall construction device and concrete wall Download PDFInfo
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- CN117188808A CN117188808A CN202310996516.5A CN202310996516A CN117188808A CN 117188808 A CN117188808 A CN 117188808A CN 202310996516 A CN202310996516 A CN 202310996516A CN 117188808 A CN117188808 A CN 117188808A
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Abstract
The invention discloses a concrete wall construction method, a concrete wall construction device and a concrete wall, wherein the construction method comprises the following steps: sleeving the embedded connecting piece at the end part of the inflatable elastic air bag, and arranging the inflatable elastic air bag and the corresponding embedded connecting piece on the concrete wall template; pouring concrete; after the concrete is hardened, deflating and extracting the inflatable elastic air bag to obtain a concrete wall body with a channel, wherein the channel is used for crack development induction, crack leakage liquid collection and liquid discharge, and the embedded connecting piece is arranged at the end part of the channel; after the concrete wall body is determined to be stable, the concrete wall body is connected with the embedded connecting piece through the grouting device and is subjected to high-pressure grouting in the channel so as to fill the channel and the crack. According to the concrete wall construction method provided by the embodiment of the invention, the development direction of the crack can be induced, the permeated liquid is discharged through the channel, the crack is repaired by high-pressure grouting after the state of the concrete wall is stable, and the durability of the concrete wall structure is improved.
Description
Technical Field
The invention relates to the technical field of concrete, in particular to a concrete wall construction method, a concrete wall construction device and a concrete wall.
Background
The cracking of the concrete wall, in particular to the cracking and water seepage of the concrete outer wall, is a common quality defect which is difficult to control in the construction process of the structure. The main reasons for the generation of cracks in the concrete wall are uneven shrinkage deformation caused by the restriction of the concrete in the hardening stage, and structural cracks caused by the factors of load change, uneven settlement and the like of the subsequent construction on the wall. The crack typically appears as a bottom-up vertical crack, with a portion being a through crack. Surface water or underground water permeates into the wall along cracks, corrodes steel bars in the wall and flows into a room, so that the service function and durability of the structure are seriously affected.
In the related art, for the treatment of such wall cracks, a crack detection-cross drilling-grouting repair method is adopted. However, the crack may be explored with incomplete marks, and the post-drilling mode may also have problems such as insufficient drilling or damage to internal steel bars. Therefore, the induction and repair modes for the crack extension of the concrete wall are required to be further optimized.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a concrete wall construction method capable of inducing a crack development direction and collecting and discharging an infiltration liquid through a passage, repairing the crack by high pressure grouting, and improving durability of a concrete wall structure.
The invention also provides a concrete wall construction device adopting the construction method.
The invention also provides a concrete wall constructed by adopting the construction method or the construction device.
The concrete wall construction method according to the embodiment of the invention comprises the following steps: acquiring an inflatable elastic air bag and a pre-buried connecting piece; sleeving the embedded connecting piece at the end part of the inflatable elastic air bag, and arranging the inflated inflatable elastic air bag and the corresponding embedded connecting piece on a concrete wall template; pouring concrete; after the concrete is hardened, deflating and extracting the inflatable elastic air bag to obtain a concrete wall with a channel, wherein the channel is used for crack development induction, crack leakage liquid collection and liquid discharge, and the embedded connecting piece is arranged at the end part of the channel; after the concrete wall body is determined to be stable, the concrete wall body is connected with the embedded connecting piece through a grouting device and is subjected to high-pressure grouting in the channel so as to fill the channel and the crack.
According to the concrete wall construction method provided by the embodiment of the invention, the channel is preset in the concrete wall, so that the channel can induce the development direction of the crack, the crack is prevented from continuously expanding at the channel, the seepage path is changed, the liquid permeated through the crack is discharged through the channel, the large-area seepage and ponding of the concrete wall are prevented from damaging the internal structure, the channel and the crack are repaired by high-pressure grouting after the state of the concrete wall is stabilized, the service function of the concrete wall is ensured, the durability of the structure is improved, and the operations such as re-punching and probing are not needed in the repairing process, so that the crack is repaired more comprehensively, the damage to the reinforced structure is reduced, and the operation is simpler and more convenient.
In addition, the concrete wall construction method according to the above embodiment of the present invention may further have the following additional technical features:
according to some embodiments of the invention, the channel is a through channel at one end, the pre-buried connector is sleeved at the end of the inflatable elastic air bag, and the inflatable elastic air bag and the corresponding pre-buried connector are arranged on a concrete wall form, including: and one end of the inflatable elastic air bag in the length direction is sleeved with the embedded connecting piece, and the other end of the inflatable elastic air bag is spaced from the concrete wall form by a preset distance.
According to some embodiments of the invention, the channel is a through channel at two ends, the pre-buried connector is sleeved at the end of the inflatable elastic air bag, and the method comprises: and the embedded connecting pieces are respectively sleeved at the two ends of the inflatable elastic air bag in the length direction.
According to some embodiments of the invention, the grouting device is connected with the pre-buried connecting piece and used for grouting the high pressure in the channel, and the grouting device comprises: and connecting the embedded connecting piece at one end with the grouting device, connecting the embedded connecting piece at the other end with the stop valve, and keeping the stop valve closed.
According to some embodiments of the invention, before the inflatable elastic air bags and the corresponding embedded connectors are arranged on the concrete wall form, the construction method comprises the following steps: and (3) coating lubricating oil on the surface of the inflatable elastic air bag.
According to some embodiments of the present invention, the inflatable elastic airbag and the corresponding embedded connector are arranged on a concrete wall form, comprising: both ends of the inflatable elastic air bag extend along the thickness direction of the concrete wall body, and the middle part extends along the length direction of the concrete wall body; alternatively, the inflatable elastic air bag extends along the length direction of the concrete wall body; alternatively, one end of the inflatable elastic balloon extends in the thickness direction of the concrete wall, and the remaining portion extends in the length direction of the concrete wall.
According to some embodiments of the present invention, the inflatable elastic airbag and the corresponding embedded connector are arranged on a concrete wall form, comprising: arranging a plurality of inflatable elastic air bags in 1-2 rows along the thickness direction of the concrete wall, and arranging a plurality of layers of inflatable elastic air bags in each row along the height direction of the concrete wall.
According to some embodiments of the invention, the grouting device is connected with the pre-buried connecting piece and used for grouting the high pressure in the channel, and the grouting device comprises: and grouting the channel communicated with the penetrating crack at high pressure.
According to some embodiments of the invention, the grouting device is connected with the pre-buried connecting piece and used for grouting the high pressure in the channel, and the grouting device comprises: and determining that a plurality of layers of channels are communicated with the penetrating cracks, and sequentially grouting each layer of channels under high pressure from bottom to top.
According to some embodiments of the invention, the height of the inflatable elastic air bags at the uppermost layer is not lower than 2/3 of the height of the concrete wall, and the distance between two adjacent inflatable elastic air bags is 0.5-2 m.
According to some embodiments of the invention, the concrete wall is determined to be stable when the foundation settlement and the external load of the concrete wall are unchanged.
The concrete wall construction device according to an embodiment of the invention is characterized in that the device for constructing the concrete wall according to the embodiment of the invention comprises: the inflatable elastic air bags are used for being pre-embedded in the templates of the concrete wall body and can be detached after the concrete wall body is poured so as to form a channel in the concrete wall body; the inflatable elastic air bag comprises at least one embedded connecting piece, wherein the embedded connecting piece is provided with a through mounting hole, and the outer diameter of the inflatable elastic air bag in an inflated state is larger than or equal to the inner diameter of the mounting hole.
According to some embodiments of the invention, the construction device further comprises: at least one stop valve having a connection portion for detachable connection with the mounting hole, and having an on state of turning on the mounting hole and an off state of turning off the mounting hole.
According to some embodiments of the present invention, the number of the inflatable elastic air bags is 1-2, the inflatable elastic air bags are arranged at intervals along the thickness direction of the concrete wall body, and the interval between two adjacent layers of inflatable elastic air bags is 0.5-2 m.
According to some embodiments of the invention, the stop valve comprises a valve body and a connecting pipe, the connecting pipe is provided with the connecting part, the valve body is detachably connected with the connecting pipe, the construction device further comprises a water collecting piece, and the water collecting piece is arranged right below the valve body and provided with a top water receiving port; and/or the inflatable elastic air bag comprises an air bag body and an inflation valve arranged at the end part of the air bag body.
The concrete wall according to the embodiment of the invention is manufactured by the concrete wall construction method according to the embodiment of the invention or by the concrete wall construction device according to the embodiment of the invention.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a flow chart of a method of constructing a concrete wall according to an embodiment of the invention;
FIG. 2 is a schematic view of a concrete wall according to an embodiment of the invention in a state in which the inflatable elastic bladder is not extracted;
FIG. 3 is a schematic illustration of the mating structure of an inflatable elastic balloon and a pre-buried connector according to an embodiment of the present invention;
FIG. 4 is a schematic view of a concrete wall according to an embodiment of the invention, with the inflatable elastic bladder removed;
FIG. 5 is a schematic view of a concrete wall according to an embodiment of the present invention, wherein a shut-off valve is connected to a pre-buried connector;
FIG. 6 is a schematic view of a state of a concrete wall according to an embodiment of the invention, wherein the concrete wall is stable;
fig. 7 is a schematic view of a state of a concrete wall according to an embodiment of the present invention, in which three channels are sequentially high-pressure grouted in the order of A, B, C.
Reference numerals:
a concrete wall 200; a channel 210; a slit 220;
an inflatable elastic balloon 10; an airbag body 11; an inflation valve 12;
embedding the connecting piece 20; a mounting hole 201; a cylinder 21; an extension 22;
a shutoff valve 30; a valve body 31; a connection pipe 32;
a water collecting member 40.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the description of the invention, "a first feature" may include one or more such features, and "a plurality" may mean two or more, and that a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact with each other through additional features therebetween, with the first feature "above", "over" and "above" the second feature including both the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature.
A construction method of a concrete wall 200 and a construction apparatus of the concrete wall 200 according to an embodiment of the present application are described below with reference to the accompanying drawings.
Referring to fig. 1, a construction method of a concrete wall 200 according to an embodiment of the present application may include the steps of:
s1: an inflatable elastic balloon 10 and a pre-buried connector 20 are obtained.
The inflatable elastic balloon 10 has a certain elasticity, and the inflatable elastic balloon 10 can be inflated and deflated to realize volume change, mainly being capable of radial deformation. In embodiments of the present application, the material of the inflatable elastic bladder 10 may be flexible, including but not limited to rubber and soft plastic materials.
The embedded connecting piece 20 is used for being connected with the inflatable elastic air bag 10 and other components, wherein the inflatable elastic air bag 10 and the embedded connecting piece 20 are connected in an inserting mode, and the connecting mode of the embedded connecting piece 20 and other components comprises but is not limited to inserting and threaded connection. The material of the pre-buried connector 20 includes, but is not limited to, stainless steel and aluminum alloy.
For example, the pre-buried connector can also be used in connection with a shut-off valve 30, i.e. a valve structure with an on-state and an off-state of the shut-off valve 30. It should be noted that, the stop valve 30 may be a one-way valve, a two-way valve, a multi-way valve, or the like, which is within the scope of the present application.
In the construction process, the number of the inflatable elastic air bags 10 and the embedded connectors 20 required can be determined according to actual conditions, for example, one inflatable elastic air bag 10 and one embedded connector 20 can be obtained, and a plurality of (two or more) inflatable elastic air bags 10 and a plurality of embedded connectors 20 can be obtained.
S2: the embedded connecting piece 20 is sleeved at the end part of the inflatable elastic air bag 10, and the inflated inflatable elastic air bag 10 and the corresponding embedded connecting piece 20 are arranged on the concrete wall form.
It should be noted that, the pre-buried connecting piece 20 may be first sleeved on the inflatable elastic air bag 10 and then on the concrete wall form; the inflatable elastic air bag 10 can be arranged on the concrete wall template, and then the embedded connecting piece 20 is sleeved on the inflatable elastic air bag 10.
In addition, the concrete wall form defines a cavity for casting the concrete wall 200, and the concrete wall 200 is obtained by casting concrete in the cavity. By arranging the inflatable elastic air bag 10 on the concrete wall form, the inflated inflatable elastic air bag 10 can occupy part of the space in the cavity, so that the occupied space is not filled with concrete when concrete is poured. In some embodiments, localized reinforcement may also be provided around the inflatable bladder 10 within the chamber, and the surface of the reinforcement may be coated with a rust-resistant coating to prevent corrosion of the reinforcement due to prolonged infiltration of groundwater.
The embedded connecting piece 20 is arranged on the concrete wall template, and the embedded connecting piece 20 can be connected with the concrete wall template; and the connecting piece can also be connected with structures such as a fixed bracket, steel bars and the like in the concrete wall form so as to avoid the influence of the pre-buried connecting piece 20 on the later disassembly of the concrete wall form.
S3: and (5) pouring concrete.
S4: after the concrete is hardened, the inflatable elastic balloon 10 is deflated and extracted to obtain the concrete wall 200 with the channel 210, the channel 210 is used for crack 220 development induction, crack leakage liquid collection and liquid discharge, and the embedded connecting piece 20 is arranged at the end part of the channel 210.
By deflating the inflatable elastic bladder 10, the volume of the inflatable elastic bladder 10 is greatly reduced so as to be separated from the hardened concrete wall 200, and the inflatable elastic bladder 10 is conveniently drawn out. The formed channel 210, i.e. the space occupied by the inflatable elastic balloon 10 in the inflated state, the inner wall surface of the channel 210 is defined by the concrete wall 200. The extracted inflatable elastic balloon 10 can also be reused to reduce construction costs.
In addition, the embedded connector 20 is provided with an end of the channel 210, that is, at least one end of the channel 210 extends to the surface of the concrete wall 200, so that the channel 210 can be communicated with the external environment, and the air pressure in the channel 210 is consistent with the external environment and is significantly smaller than that of the dense concrete around the channel 210, and the crack 220 generated on the surface of the concrete wall can spontaneously develop to the channel 210.
In some related technologies, after cracks are generated in a concrete wall body and water is seriously leaked, the cracks are detected by aid of auxiliary tools, then cross drilling is performed, and grouting and repairing are performed. Because the crack is disordered in development, in the process, the problems of incomplete crack exploration marking, incomplete later drilling, damage to internal steel bars and the like exist, so that the crack cannot be comprehensively repaired, the operation is difficult, and a plurality of defects exist.
In the present application, the channel 210 is used to induce the crack 220, and compared with the passive repair control scheme after any development of the crack in the related art, the present application adopts the method of active guiding prevention before the crack 220 is formed, so that the development direction of the crack 220 is controllable. And the crack 220 can be directly communicated with the channel 210 when the crack 220 is developed to the channel 210, and the crack 220 can be repaired through the channel 210 without the need of probing the crack 220 and auxiliary operations such as drilling and the like, so that the repair difficulty of the crack 220 is greatly reduced.
In addition, when the crack 220 is developed to the channel 210, the crack 220 is directly communicated with the channel 210, so that the pressure is released instantaneously, and the crack 220 does not continue to develop, thereby reducing the size and the number of the crack 220 in the concrete wall 200, reducing the crack 220 penetrating the whole concrete wall 200, and preventing serious water leakage. For example, when the concrete wall 200 is used as a basement wall, the outer surface of the concrete wall 200 may be an upstream surface (e.g., the front surface shown in fig. 1) and the inner surface may be a downstream surface (e.g., the rear surface shown in fig. 1), and the crack 220 may be prevented from continuing to develop toward the downstream surface by the channel 210 when the crack 220 is developed to the channel 210, thereby preventing groundwater from penetrating into the room through the crack 220.
On the one hand, in the state of the concrete wall 200 tending to be stable, the channel 210 can also serve as a drainage channel, plays a role in collecting liquid permeated by the crack 220 and discharging the liquid intensively, even if groundwater stretches into the concrete wall 200 through the crack 220, the groundwater can flow along the crack 220 and collect into the channel 210 and flow out along the channel 210 according to a set path, so as to realize a drainage function, prevent the liquid from continuously permeating into a room through the crack 220 to cause large-area water seepage of an indoor wall, and simultaneously prevent the liquid from being accumulated in the concrete wall 200 for a long time to cause corrosion damage of structures such as internal reinforcing steel bars, ensure the use function of the concrete wall 200 and improve the structural durability.
On the other hand, by judging whether or not the fluid oozes out of the channel 210, the state of development of the crack 220 in the concrete wall 200 can be judged, for example, when the fluid oozes out of the channel 210, the formation of a through crack is indicated to communicate with the channel 210.
S5: after the concrete wall 200 is determined to be stable, it is connected to the pre-buried connection member 20 by a grouting device and high-pressure grouting is performed into the channel 210 to fill the channel 210 and the crack 220.
For concrete walls 200, a lengthy process, such as perhaps 2-3 years, is required for state stabilization, taking up most of the construction cycle of the building in which the concrete wall 200 is used. The concrete wall 200 is grouting to fill the channel 210 and the crack 220 after the state is stable, so that the probability of generating the crack 220 again is low, and the water seepage prevention requirement and the structural durability requirement of the concrete wall 200 in the using process can be ensured; if the channel 210 is filled before the concrete wall 200 is stabilized, a large number of cracks 220 are inevitably generated again in the concrete wall 200 and the cracks 220 are randomly developed, which affects the use function and structural durability of the concrete wall 200.
For example, in some embodiments, it may be determined that the concrete wall 200 is stable when conditions such as foundation settlement and external load of the concrete wall 200 are unchanged. The detection method of the foundation settlement and the external load of the concrete wall 200 is known to those skilled in the art, and will not be described herein.
It should be noted that the grouting device and the pre-buried connector 20 may be directly connected or indirectly connected. For example, in some embodiments, other components that mate with the pre-buried connector 20, such as the shut-off valve 30, may be removed to enable the grouting device to be directly connected with the pre-buried connector 20, facilitating grouting into the channel 210 and the slit 220, and facilitating reuse of other components, such as the shut-off valve 30. In other embodiments, other components connected to the pre-buried connector 20 may be bi-directionally conductive, such as the stop valve 30 is a bi-directionally conductive valve, i.e. after the connection to the stop valve 30 via the grouting device, grouting into the channel 210 and the slit 220 via the stop valve 30 and the pre-buried connector 20 without disassembling the stop valve 30; of course, in this embodiment, other components such as the stop valve 30 may be removed and cleaned for reuse after grouting is completed.
By grouting the inside of the channel 210 at high pressure, the slurry fills the channel 210 and the crack 220 communicated with the channel 210, and the plugging and repairing of the channel 210 and the crack 220 are realized, so that the structural strength and durability of the concrete wall 200 are improved. In addition, no re-punching is needed in the repairing process, the early-stage induced crack 220 and the drainage channel 210 are utilized again, the operation difficulty is greatly reduced, and further damage to the concrete wall 200 is avoided.
It should be noted that, the grouting into the channel 210 by the high-pressure grouting method can increase the pressure of the slurry in the channel 210, so that the slurry can be extruded into the crack 220 with smaller size, and the repairing effect of the crack 220 is improved.
According to the construction method of the concrete wall 200 in the embodiment of the invention, the channel 210 is preset in the concrete wall 200, so that the channel 210 can induce the development direction of the crack 220, the crack 220 is prevented from continuously expanding at the channel 210, the seepage path is changed, the liquid permeated through the crack 220 is discharged through the channel 210, the large-area seepage and ponding of the concrete wall 200 are prevented from damaging the internal structure, the channel 210 and the crack 220 are repaired by high-pressure grouting after the concrete wall 200 is stabilized, the use function of the concrete wall 200 is ensured, the structural durability is improved, and the operation such as re-punching and probing is not needed in the repairing process, so that the crack 220 is repaired more comprehensively, the damage to the reinforced structure is reduced, and the operation is simpler and more convenient.
Construction methods according to some embodiments of the present invention are described below with reference to the accompanying drawings.
According to some embodiments of the invention, the channel 210 is a through-channel 210 at one end. In other words, one end of the channel 210 may communicate with the external environment of the concrete wall 200, so that the atmospheric pressure in the channel 210 is maintained to be consistent with the external environment; and the other end of the channel 210 is closed so that fluid within the channel 210 does not flow out of the other end of the channel 210. In the step S2, "sleeving the pre-buried connection member 20 on the end portion of the inflatable elastic air bag 10 and positioning the inflated inflatable elastic air bag 10 and the corresponding pre-buried connection member 20 on the concrete wall form" may include: an embedded connector 20 is sleeved at one end of the inflatable elastic air bag 10 in the length direction, and the other end of the inflatable elastic air bag 10 is spaced from the concrete wall form by a preset distance.
The pre-buried connector 20 is sleeved at one end of the inflatable elastic airbag 10 in the length direction, for example, the pre-buried connector 20 may be sleeved at the left end of the inflatable elastic airbag 10. Therefore, one end of the inflatable elastic air bag 10 is limited by the embedded connecting piece 20, so that one end of the inflatable elastic air bag 10 can penetrate out of the concrete wall form, and the end of the corresponding channel 210 is opened and communicated with the external environment.
Wherein the other end of the inflatable elastic bladder 10 is spaced apart from the concrete wall form by a predetermined distance, for example, the right end of the inflatable elastic bladder 10 may be spaced apart from the concrete wall form by a predetermined distance. Thereby, the other end of the inflatable elastic bladder 10 and the concrete wall form can be filled with concrete, thereby closing the area and thus the corresponding channel 210 ends.
In summary, the channel 210 is formed as a single-ended conductive structure. In the high-pressure grouting process, the grouting device can be connected with the embedded connecting piece 20 at one end of the channel 210 and grouting into the channel 210, namely grouting into the channel 210 from the conducting end, and because the other end is closed, the pressure of slurry in the channel 210 can be quickly increased, the pressure of the slurry can be sufficiently high to meet the pressure requirement of the high-pressure grouting, and then the slurry can smoothly enter the crack 220 which is communicated with the channel 210 and has a smaller size under the action of high pressure, and the slurry in the crack 220 can continuously flow along the crack 220 to fully fill the whole crack 220, so that the repairing effect of the crack 220 is improved.
According to other embodiments of the present invention, as shown in fig. 2, 4-5 and 7, the channel 210 is a through channel 210 at both ends, in other words, both ends of the channel 210 may communicate with the external environment so as to maintain the atmospheric pressure in the channel 210 consistent with the external environment. The "fitting the pre-buried connector 20 around the end of the inflatable elastic airbag 10" in the above step S2 may include: the two ends of the inflatable elastic air bag 10 in the length direction are respectively sleeved with a pre-buried connecting piece 20.
Therefore, the two ends of the inflatable elastic air bag 10 are respectively limited by the pre-embedded connecting pieces 20, so that the two ends of the inflatable elastic air bag 10 can penetrate out of the concrete wall form, and the two ends of the formed channel 210 are open and are communicated with the external environment. The through passages 210 at both ends facilitate the extraction process of the inflatable elastic balloon 10, and also allow grouting from one end and observing grouting through the other end during high pressure grouting; in addition, in the drainage process, the two ends of the water tank are opened to drain water, so that the drainage efficiency and the drainage effect are improved.
In some embodiments where the channel 210 is a through channel 210 at two ends, the "connecting with the pre-buried connector 20 and grouting into the channel 210 by the grouting device" in the step S5 may include: one end of the embedded connecting piece 20 is connected with the grouting device, and the other end of the embedded connecting piece 20 is connected with the stop valve 30 and keeps the stop valve 30 closed. For example, the pre-buried connector 20 corresponding to the left end of the channel 210 is connected to the grouting device, and the stop valve 30 corresponding to the right end of the channel 210 is kept closed to block the right end of the channel 210.
Therefore, in the grouting process, one end of the channel 210 is used for grouting, the other end is closed so that the pressure of the slurry in the channel 210 can be quickly increased, the pressure of the slurry can be sufficiently high to meet the pressure requirement of high-pressure grouting, the slurry can smoothly enter the crack 220 which is communicated with the channel 210 and has a smaller size under the action of high pressure, and the slurry in the crack 220 can continuously flow along the crack 220 to fully fill the whole crack 220, so that the repairing effect of the crack 220 is improved.
It should be noted that, in some embodiments, the stop valve 30 corresponding to the other end of the channel 210 may be opened for a period of time at the initial stage of grouting, so that the gas in the channel 210 can be rapidly discharged through the stop valve 30 before the slurry fills the channel 210, so as to ensure that the cracks 220 communicated with any position of the channel 210 in the grouting process can be fully filled and repaired, and meanwhile, the repairing efficiency is improved. Of course, in some embodiments where the shut-off valve 30 is always closed, gas within the channel 210 may also be vented through the communicating slits 220, which also facilitates slurry filling the entire channel 210.
In some embodiments of the present application, the construction method may include, before the inflatable elastic airbag 10 and the corresponding pre-embedded connector 20 are disposed on the concrete wall form in the step S2: lubricating oil is applied to the surface of the inflatable elastic balloon 10.
By applying lubricating oil to the surface of the inflatable elastic air bag 10, after the concrete is hardened, the inflatable elastic air bag 10 can be completely separated from the concrete wall 200 after being deflated, and the inflatable elastic air bag 10 is conveniently pulled out.
In the present application, the air pressure introduced into the inflatable elastic balloon 10 may be flexibly set according to the actual situation, for example, may be set according to the material of the inflatable elastic balloon 10. In some embodiments, the inflatable bladder 10 is of rubber material and inflated with 250-350 kPa gas to allow the inflatable bladder 10 to expand to withstand the pressure of concrete during casting, thereby defining the channel 210.
According to some embodiments of the present invention, the inflatable elastic bladder 10 and the corresponding pre-embedded connectors 20 are disposed on the concrete wall form in the step S2, wherein the inflatable elastic bladder 10 may include various arrangements.
For example, in some embodiments, both ends of the inflatable elastic bladder 10 extend in the thickness direction (e.g., the front-to-rear direction as shown in fig. 1) of the concrete wall 200, and the middle portion extends in the length direction (e.g., the left-to-right direction as shown in fig. 1) of the concrete wall 200. Therefore, the end of the formed channel 210 can extend along the thickness direction of the concrete wall 200, and then the surface on the same side in the thickness direction of the concrete wall 200 is opened, in other words, the opening of the channel 210 is not formed on the end surface in the length direction of the concrete wall 200, and the embedded connectors 20 are not arranged, so that a plurality of concrete walls 200 can be spliced along the length direction conveniently to form the concrete wall 200 with a larger length, and the splicing process is not hindered by the embedded connectors 20 and the channel 210.
In addition, in some embodiments where two ends of the channel 210 are open on the same side surface, the surfaces on two sides of the concrete wall 200 in the thickness direction may be respectively used as an upstream surface and a downstream surface, and two ends of the channel 210 may be formed on the downstream surface, so as to prevent water flows such as groundwater from directly entering the channel 210 through the end openings of the channel 210, and also prevent the external water flows from wetting the fittings such as the embedded connectors 20 and the stop valves 30, so as to cause structural corrosion and damage.
For another example, in some embodiments, the inflatable elastic bladder 10 extends entirely along the length of the concrete wall 200. Thus, the inflatable elastic airbag 10 is not provided with a turning structure as a whole, so that the inflatable elastic airbag is convenient to draw out, and the formed opening of the channel 210 is formed on the end face of at least one end of the concrete wall 200 in the length direction, so that in the embodiment of splicing the concrete walls 200, the channels 210 of the concrete walls 200 are convenient to communicate with each other, and the grouting alone or together can be flexibly selected.
For another example, in some embodiments, as shown in fig. 2, 4 and 5, one end of the inflatable elastic bladder 10 extends in the thickness direction of the concrete wall 200, and the remaining portion extends in the length direction of the concrete wall 200. Thus, one end of the formed channel 210 is opened to form a surface on one side of the concrete wall 200 in the thickness direction, which is a back surface; the other end of the channel 210 is not opened, or the opening at the other end of the channel 210 is formed on the end surface of one end of the concrete wall 200 in the length direction, so that the adjacent two concrete walls 200 can be spliced, and the splicing process is not interfered by the structures such as the embedded connecting piece 20.
It should be noted that, in the embodiment of the present invention, the above two or more arrangements of the inflatable elastic air bags 10 may be adopted simultaneously in the construction process.
For example, in one embodiment of the present invention, at least three concrete walls 200 are spliced lengthwise to form a wall of greater length. Wherein, two concrete walls 200 are located at both ends in the length direction, one end of the inflatable elastic balloon 10 extends in the thickness direction of the concrete wall 200, so that an opening at one end of the channel 210 is formed on the back surface of the concrete wall 200; the other portion of the inflatable elastic bladder 10 extends along the length of the concrete wall 200 such that the opening at the other end of the channel 210 is formed in the end face of one end of the concrete wall 200 in the length direction. The concrete wall 200 is located at the middle in the length direction, and the inflatable elastic bladder 10 is integrally extended in the length direction of the concrete wall 200 so that the passage 210 penetrates the concrete wall 200 in the length direction. Thus, after the splicing of all concrete walls 200 is completed, the channels 210 may be mutually communicated to form a complete channel 210, and the openings at both ends are formed on the back surface of the spliced concrete wall 200, so as to prevent water from entering through the openings.
According to some embodiments of the present invention, the step S2 of disposing the inflatable elastic air bags 10 and the corresponding pre-embedded connectors 20 on the concrete wall form may include: the plurality of inflatable elastic air bags 10 are arranged in 1-2 rows along the thickness direction of the concrete wall 200, and each row is provided with a plurality of layers of inflatable elastic air bags 10 along the height direction of the concrete wall 200, and the specific layers of the inflatable elastic air bags 10 can be flexibly set according to the height of the concrete wall 200. For example, the thickness direction of the concrete wall 200 may be the front-rear direction shown in fig. 1, and the height direction of the concrete wall 200 may be the up-down direction shown in fig. 1.
Thus, the channels 210 arranged in a matrix may be formed in the thickness and height directions of the concrete wall 200 to enhance the effect of inducing the cracks 220 to communicate with the channels 210, thereby enhancing the drainage and repair effects.
Furthermore, it was found that the highest point where the shrinkage crack 220 of the concrete wall 200 may develop is 2/3 of the wall height, and thus, in some embodiments, the uppermost inflatable elastic balloon 10 is disposed at a height not lower than 2/3 of the height of the concrete wall 200, and the plurality of inflatable elastic balloons 10 are disposed at equal intervals. The uppermost channel 210 formed is not lower than the highest point where the crack 220 may develop, further improving the effect of inducing the crack 220 to communicate with the channel 210. And the formed multi-layered channels 210 arranged at equal intervals make the entire concrete wall 200 uniform in structure and stress. For example, the spacing between adjacent two layers of inflatable elastic bladders 10 may be 0.5-2 mm, such as 0.5m, 1m, 1.5m, 2m, etc.
In some embodiments, as shown in fig. 6 and 7, the "connecting with the pre-buried connector 20 and grouting into the channel 210 by the grouting device" in the above step S5 may include: the high pressure grouting is performed to the passage 210 communicating with the through-slit.
The channel 210 communicating with the through slit, i.e. the channel 210 has liquid oozing out. The channel 210 communicating with the through slit, i.e. no liquid seeps out in the channel 210.
In other words, the high pressure grouting process of the plurality of channels 210 is not required to be completed simultaneously, and only the channels 210 and the communicated cracks 220 are required to be repaired when being communicated with the through cracks; and when other channels 210 are not communicated with the through cracks, the channels 210 are reserved so as to avoid the influence on the structural strength of the concrete wall 200 caused by the continuous development of the cracks 220 after the premature grouting.
In some embodiments, as shown in fig. 6 and 7, the "connecting with the pre-buried connector 20 and grouting into the channel 210 by the grouting device" in the above step S5 may include: the multi-layer channels 210 are determined to communicate with the through-cracks, and each layer of channels 210 is subjected to high-pressure grouting in sequence from bottom to top.
As shown in fig. 6 and 7, when the multi-layered channels 210 communicate with the through-slits, two adjacent layers of channels 210 may communicate through the through-slits. During the high pressure grouting, the channels 210 may be sequentially high pressure grouted in the order of A, B, C as shown in fig. 7. In the process of grouting the a-channel 210 at high pressure, the gas in the a-channel 210 can flow into the B-channel 210 through the through-slits 220, so that the gas in the a-channel 210 and the slits 220 communicated with the a-channel 210 can not form excessive pressure to affect grouting, and the slurry can completely fill the a-channel 210 and form higher pressure in the a-channel 210 to fully repair the slits 220.
The invention also provides a construction device of the concrete wall 200, and the construction device of the concrete wall 200 according to the embodiment of the invention can be used for the construction method of the concrete wall 200 according to the embodiment of the invention. As shown in fig. 1 to 5, the construction apparatus includes: at least one inflatable elastic balloon 10, at least one pre-buried connector 20.
The inflatable elastic air bag 10 is used for being pre-buried in a formwork of the concrete wall 200 and can be detached after the concrete wall 200 is poured to form a channel 210 in the concrete wall 200. The inflatable elastic air bags 10 can be inflated to enlarge the volume and occupy the space in the concrete wall form, so that the channels 210 can be smoothly formed when concrete is poured, the inflatable elastic air bags 10 can be deflated to reduce the volume, the inflatable elastic air bags 10 are convenient to detach, the concrete wall 200 is directly used as the wall surface of the channels 210, the cracks 220 can be directly communicated with the channels 210 when the cracks 220 are formed, and the induction, drainage and later grouting repair of the cracks 220 can be conveniently realized. The detached inflatable elastic balloon 10 can also be reused to reduce construction costs.
The pre-buried connector 20 has a through mounting hole 201, and the outer diameter of the inflatable elastic airbag 10 in the inflated state is greater than or equal to the inner diameter of the mounting hole 201. Therefore, the inflatable elastic air bag 10 can be arranged in the mounting hole 201 of the pre-buried connecting piece 20 in a penetrating manner, the outer diameter of the inflated inflatable elastic air bag 10 is larger to be in close contact with the inner peripheral surface of the mounting hole 201, sealing is achieved, the pre-buried connecting piece 20 can limit the inflatable elastic air bag 10 in the construction process so as to facilitate grouting to form the channel 210, a grouting device and the like can be communicated with the channel 210, and the grouting device and the like can be disassembled and assembled conveniently.
According to the construction device for the concrete wall 200, the channel 210 can be preset in the concrete wall 200 through the cooperation of the inflatable elastic air bags 10 and the embedded connecting pieces 20, so that the channel 210 can induce the development direction of the crack 220, the crack 220 is prevented from continuously expanding at the channel 210, the seepage path is changed, the liquid permeated through the crack 220 is discharged through the channel 210, the concrete wall 200 is prevented from being permeated in a large area and the accumulated water is prevented from damaging the internal structure, the high-pressure grouting is convenient for repairing the channel 210 and the crack 220 after the concrete wall 200 is stabilized in state, the use function of the concrete wall 200 is ensured, the structural durability is improved, the operation such as re-punching and probing is not needed in the repairing process, the crack 220 is repaired more comprehensively, the damage to the reinforced structure is reduced, and the operation is simpler and more convenient.
According to some embodiments of the present invention, as shown in fig. 5, the construction apparatus further includes a shut-off valve 30, the shut-off valve 30 having a connection portion for detachably connecting with the installation hole 201, and the shut-off valve 30 having a conductive state of conducting the installation hole 201 and a blocking state of closing the installation hole 201. The passage 210 is turned on and blocked by switching the shut-off valve 30 between an on state, in which the development state of the crack 220 is detected and the liquid in the passage 210 is discharged, and a blocking state, in which foreign substances such as external water flow can be prevented from entering the passage 210.
And can dismantle with mounting hole 201 through the connecting portion of stop valve 30 and be connected, be convenient for realize stop valve 30, slip casting device and inflatable elastic gasbag 10 cooperate with pre-buried connecting piece 20 in different stages alternatively to realize multiple functions through simpler structure, reduce construction cost. In the present application, the connection manner between the connection portion and the mounting hole 201 is not limited, and includes, but is not limited to, threaded connection, clamping connection, and the like.
In some embodiments, as shown in fig. 2, the construction device includes a plurality of inflatable elastic air bags 10, and the plurality of inflatable elastic air bags 10 are arranged in 1-2 rows at intervals along the thickness direction of the concrete wall 200, and each row is provided with a plurality of layers of inflatable elastic air bags 10 at intervals along the height direction of the concrete wall 200. Thus, the channels 210 arranged in a matrix may be formed in the thickness and height directions of the concrete wall 200 to enhance the effect of inducing the cracks 220 to communicate with the channels 210, thereby enhancing the drainage and repair effects. The number of columns and layers of the inflatable elastic air bags 10 can be set according to the height of the concrete wall 200 and the development rule of the cracks 220 when the inflatable elastic air bags 10 are arranged on the concrete wall form, for example, a column of inflatable elastic air bags 10 is arranged in the middle of the thickness direction of the concrete wall 200, and the inflatable elastic air bags 10 on the uppermost layer are arranged at 2/3 of the height of the concrete wall 200.
In some embodiments, the spacing between two adjacent layers of inflatable elastic bladders 10 is between 0.5 and 2m, so that after the multiple layers of inflatable elastic bladders 10 are arranged in the concrete wall form, the formed channels 210 are more reasonably arranged in the concrete wall 200.
According to some embodiments of the present invention, as shown in fig. 5, the shut-off valve 30 includes a valve body 31 and a connection pipe 32. The connection pipe 32 is provided with a connection portion, and the valve body 31 is detachably connected with the connection pipe 32 (connection manners include, but are not limited to, threads, clamping connection and the like). By providing the connection pipe 32, the valve body 31 can be spaced apart from the concrete wall 200 by a certain distance, so as to reduce the risk of water splashing onto the concrete wall 200 during the drainage process and facilitate the collection of the discharged water.
In some embodiments, as shown in fig. 5, the construction device further includes a water collecting member 40, the water collecting member 40 being placed directly under the valve body 31 and having a top water receiving port. The water flow discharged from the valve body 31 can fall into the water collecting piece 40 through the top water receiving port under the action of gravity, so that liquid collection is realized.
Here, the specific structure of the water collecting member 40 may be flexibly set, for example, the water collecting member 40 may be a water collecting tank for collecting liquid; for another example, the water collecting member 40 may be a water guiding groove for guiding the liquid to a specific position such as a sewer; advantageously, the water collecting member 40 may be a water collecting well provided with an automatic draining pump for automatically draining the liquid in the water collecting well through the channel 210 when the water level in the water collecting well reaches a certain height.
It should be noted that, when the grouting device is installed, the grouting device may be connected to the valve body 31, or the valve body 31 may be removed to connect the grouting device to the connecting pipe 32, or the whole stop valve 30 may be removed to connect the grouting device to the pre-buried connecting piece 20, and the connection manner includes, but is not limited to, threaded connection, clamping connection, plugging connection, and the like, which are all within the protection scope of the present invention.
In some embodiments, as shown in fig. 3, the inflatable elastic airbag 10 includes an airbag body 11 and an inflation valve 12, the inflation valve 12 being provided at an end of the airbag body 11, for example, at one or both ends of the airbag body 11.
The balloon body 11 is adapted to elastically deform to effect a change in volume, facilitating the formation of the channel 210 and the removal of the inflatable elastic balloon 10. In some embodiments, the outer surface of the balloon body 11 is a smooth surface to facilitate extraction of the inflatable elastic balloon 10.
The inflation valve 12 is convenient for inflating the airbag body 11, can realize blocking after inflation is completed to keep the airbag body 11 in an inflated state, and can also discharge the gas in the airbag body 11 so as to facilitate the disassembly of the inflatable elastic airbag 10.
The concrete wall 200 according to the embodiment of the present invention is manufactured by the construction method of the concrete wall 200 according to the embodiment of the present invention, or by the construction apparatus of the concrete wall 200 according to the embodiment of the present invention. Since the construction method of the concrete wall 200 and the construction apparatus of the concrete wall 200 according to the embodiments of the present invention have the above-mentioned beneficial technical effects, according to the concrete wall 200 of the embodiments of the present invention, the channel 210 is preset in the concrete wall 200, so that the channel 210 can induce the development direction of the crack 220, prevent the crack 220 from continuing to expand at the channel 210, change the seepage path, and drain the liquid permeated through the crack 220 through the channel 210, thereby preventing the concrete wall 200 from large-area seepage and ponding to damage the internal structure, and the channel 210 and the crack 220 are repaired by high-pressure grouting after the concrete wall 200 is in a stable state, thereby ensuring the use function of the concrete wall 200 and improving the durability of the structure, avoiding the operations of re-punching, probing, etc. during the repair, so that the repair of the crack 220 is more comprehensive, the damage to the reinforcing steel structure is reduced, and the operation is simpler.
The construction apparatus, construction method, and concrete wall 200 constructed according to one embodiment of the present invention will be described in detail with reference to the accompanying drawings, it being understood that the following description is illustrative only and is not to be construed as limiting the invention.
The construction apparatus of the concrete wall 200 according to an embodiment of the present invention includes three inflatable elastic air bags 10, six pre-buried connectors 20, six shut-off valves 30, and one water collecting member 40. The inflatable elastic balloon 10 comprises a balloon body 11 and an inflation valve 12, wherein the balloon body 11 is of an elongated cylindrical structure and has an outer diameter of 16 mm-40 mm. The pre-buried connector 20 has a mounting hole 201, and the mounting hole 201 has an internal thread. The embedded connector 20 comprises a cylinder 21 and an extension part 22, the extension part 22 is arranged on the periphery edge of one end of the cylinder 21, the cylinder 21 can enlarge the axial matching area with the inflatable elastic air bag 10 and the concrete wall 200, and the extension part 22 can enlarge the radial matching area with the concrete wall 200.
In the construction process, 250-350 kPa air is filled in the inflatable elastic air bags 10, lubricating oil is smeared on the surface of the inflatable elastic air bags, the inflatable elastic air bags are arranged in a template of the concrete wall 200, the inflatable elastic air bags are arranged in a single row at the center line position of the wall, three layers are arranged, so that the inflatable elastic air bags 10 on the uppermost layer are arranged at 2/3 of the height of the wall, and the inflatable elastic air bags 10 on the three layers are equidistantly arranged at a distance of 500mm.
The pre-buried connecting piece 20 is sleeved at the end part of the inflatable elastic air bag 10, is arranged at the inner side of the concrete wall body template and is connected with the internal fixed support, so that the pre-buried connecting piece 20 is arranged on the surface of the concrete wall body 200 and does not influence the subsequent template dismantling.
To ensure the overall performance of the concrete wall 200, the periphery of the inflatable elastic air bag 10 is also partially reinforced with steel bar, and the steel bar is coated with an anti-rust paint to perform anti-rust treatment, so that the corrosion of the steel bar caused by long-term infiltration of groundwater is avoided.
After the concrete is poured and hardened, the inflatable elastic air bag 10 is deflated, the volume is greatly reduced, the inflatable elastic air bag is completely separated from the concrete wall 200, the inflatable elastic air bag 10 is extracted from the concrete wall 200, a through channel 210 is formed, and the channel 210 can induce the development of a crack 220. The pre-buried connector 20 communicates with the end of the channel 210.
The stop valve 30 is mechanically connected with the embedded connecting piece 20 through threads, and forms a drainage channel together with the channel 210, and water seepage is collected into the channel 210 and discharged into the water collecting piece 40 through the stop valve 30.
After the concrete wall 200 is stable, the stop valve 30 is removed, the feeding pipe is extended into the channel 210 by high-pressure grouting, and the crack 220 repairing material with one strength level is filled in at high pressure to block and repair the through crack 220 and the channel 210.
According to the embodiment of the application, the crack 220 induction path is damaged according to the distribution rule of the crack 220 in the concrete wall 200, the atmospheric pressure in the reserved channel 210 is consistent with the external environment and is obviously smaller than that of the dense concrete around the channel 210, and the crack 220 on the surface of the concrete wall 200 spontaneously develops to the point. After the crack 220 has progressed to communicate with the channel 210, the pressure is released instantaneously, and the crack 220 does not continue to progress to the back surface. Groundwater is collected to the channel 210 through the crack 220 and is collected to the water collecting member 40 through the drainage channel, so that large-area indoor water seepage caused by irregular development of the crack 220 is avoided, the use function is ensured, and the structural durability is improved.
For the problem of water seepage of the cracks 220 of the concrete wall 200, the thought of the post passive repair control in the related technology is optimized into a pre-active dredging prevention mode. The channel 210 is preset in the concrete wall 200, so that the channel 210 can be used as a crack 220 development induction and underground water collection channel 210 in the early stage, the water seepage path is changed, the influence of the crack 220 further development on the service functionality and structural durability is avoided, and the channel 210 can be used as a later-stage high-pressure grouting repair channel 210, and the further damage of re-punching to the concrete wall 200 is avoided.
Other constructions and operations of the construction apparatus of the concrete wall 200 and the construction method of the concrete wall 200 according to the embodiment of the present invention are known to those skilled in the art, and will not be described in detail herein. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description herein, reference to the terms "embodiment," "specific embodiment," "example," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (16)
1. The construction method of the concrete wall body is characterized by comprising the following steps:
acquiring an inflatable elastic air bag and a pre-buried connecting piece;
sleeving the embedded connecting piece at the end part of the inflatable elastic air bag, and arranging the inflated inflatable elastic air bag and the corresponding embedded connecting piece on a concrete wall template;
pouring concrete;
after the concrete is hardened, deflating and extracting the inflatable elastic air bag to obtain a concrete wall with a channel, wherein the channel is used for crack development induction, crack leakage liquid collection and liquid discharge, and the embedded connecting piece is arranged at the end part of the channel;
after the concrete wall body is determined to be stable, the concrete wall body is connected with the embedded connecting piece through a grouting device and is subjected to high-pressure grouting in the channel so as to fill the channel and the crack.
2. The method according to claim 1, wherein the passage is a through passage, the pre-buried connector is sleeved at the end of the inflatable elastic air bag, and the inflatable elastic air bag and the corresponding pre-buried connector are arranged on the concrete wall form, comprising:
And one end of the inflatable elastic air bag in the length direction is sleeved with the embedded connecting piece, and the other end of the inflatable elastic air bag is spaced from the concrete wall form by a preset distance.
3. The method according to claim 1, wherein the channel is a through channel at two ends, the pre-buried connector is sleeved at the end of the inflatable elastic air bag, and the method comprises:
and the embedded connecting pieces are respectively sleeved at the two ends of the inflatable elastic air bag in the length direction.
4. A method of constructing a concrete wall according to claim 3, wherein the grouting means is connected to the pre-buried connection member and high-pressure grouting is performed into the channel, comprising:
and connecting the embedded connecting piece at one end with the grouting device, connecting the embedded connecting piece at the other end with the stop valve, and keeping the stop valve closed.
5. The method of constructing a concrete wall according to claim 1, wherein prior to locating the inflated inflatable elastic bladder and the corresponding pre-buried connector in the concrete wall form, the method of constructing comprises:
and (3) coating lubricating oil on the surface of the inflatable elastic air bag.
6. The method of constructing a concrete wall according to claim 1, wherein the step of disposing the inflated inflatable elastic bladder and the corresponding embedded connector in the concrete wall form comprises:
both ends of the inflatable elastic air bag extend along the thickness direction of the concrete wall body, and the middle part extends along the length direction of the concrete wall body; or,
the inflatable elastic air bag integrally extends along the length direction of the concrete wall; or,
one end of the inflatable elastic air bag extends along the thickness direction of the concrete wall body, and the rest part extends along the length direction of the concrete wall body.
7. The method of constructing a concrete wall according to claim 1, wherein the step of disposing the inflated inflatable elastic bladder and the corresponding embedded connector in the concrete wall form comprises:
arranging a plurality of inflatable elastic air bags in 1-2 rows along the thickness direction of the concrete wall, and arranging a plurality of layers of inflatable elastic air bags in each row along the height direction of the concrete wall.
8. The method of constructing a concrete wall according to claim 7, wherein the grouting means connected to the pre-buried connection member and grouting into the channel at high pressure comprises:
And grouting the channel communicated with the penetrating crack at high pressure.
9. The method of constructing a concrete wall according to claim 7, wherein the grouting means connected to the pre-buried connection member and grouting into the channel at high pressure comprises:
and determining that a plurality of layers of channels are communicated with the penetrating cracks, and sequentially grouting each layer of channels under high pressure from bottom to top.
10. The method according to claim 7, wherein the height of the inflatable elastic air bags on the uppermost layer is not less than 2/3 of the height of the concrete wall, and the distance between two adjacent inflatable elastic air bags is 0.5-2 m.
11. The method of constructing a concrete wall according to claim 1, wherein the concrete wall is determined to be stable in state when the foundation settlement and the external load of the concrete wall are not changed.
12. A concrete wall construction apparatus for a concrete wall construction method according to any one of claims 1 to 11, comprising:
the inflatable elastic air bags are used for being pre-embedded in the templates of the concrete wall body and can be detached after the concrete wall body is poured so as to form a channel in the concrete wall body;
The inflatable elastic air bag comprises at least one embedded connecting piece, wherein the embedded connecting piece is provided with a through mounting hole, and the outer diameter of the inflatable elastic air bag in an inflated state is larger than or equal to the inner diameter of the mounting hole.
13. The concrete wall construction apparatus according to claim 12, further comprising:
at least one stop valve having a connection portion for detachable connection with the mounting hole, and having an on state of turning on the mounting hole and an off state of turning off the mounting hole.
14. The concrete wall construction device according to claim 12, wherein the number of the inflatable elastic air bags is plural, the plural inflatable elastic air bags are arranged in 1-2 rows at intervals along the thickness direction of the concrete wall, and the interval between two adjacent layers of inflatable elastic air bags is 0.5-2 m.
15. The concrete wall construction device according to claim 13, wherein the shut-off valve includes a valve body and a connection pipe provided with the connection portion, the valve body being detachably connected with the connection pipe, the construction device further including a water collecting member placed directly under the valve body and having a top water receiving port; and/or the number of the groups of groups,
The inflatable elastic air bag comprises an air bag body and an inflation valve arranged at the end part of the air bag body.
16. A concrete wall body, characterized in that the concrete wall body is manufactured by the concrete wall body construction method according to any one of claims 1 to 11, or by the concrete wall body construction apparatus according to any one of claims 12 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310996516.5A CN117188808A (en) | 2023-08-08 | 2023-08-08 | Concrete wall construction method, concrete wall construction device and concrete wall |
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| CN202310996516.5A CN117188808A (en) | 2023-08-08 | 2023-08-08 | Concrete wall construction method, concrete wall construction device and concrete wall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117738339A (en) * | 2024-02-19 | 2024-03-22 | 北京市建筑工程研究院有限责任公司 | Concrete basement outer wall crack induction structure and construction method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117738339A (en) * | 2024-02-19 | 2024-03-22 | 北京市建筑工程研究院有限责任公司 | Concrete basement outer wall crack induction structure and construction method thereof |
| CN117738339B (en) * | 2024-02-19 | 2024-05-07 | 北京市建筑工程研究院有限责任公司 | Concrete basement outer wall crack induction structure and construction method thereof |
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