CN115492420A - Deviation rectifying and centering and structure reinforcing method for rammed earth wall - Google Patents
Deviation rectifying and centering and structure reinforcing method for rammed earth wall Download PDFInfo
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- E04G23/00—Working measures on existing buildings
- E04G23/04—Propping of endangered or damaged buildings or building parts, e.g. with respect to air-raid action
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/26—Strutting means for wall parts; Supports or the like, e.g. for holding in position prefabricated walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
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Abstract
The application discloses a deviation rectifying and centering and structure reinforcing method for a rammed earth wall, which comprises the steps of obtaining a survey evaluation result based on the overall condition of a wall body to be rectified; the correction scheme of the rammed earth wall can be accurately formulated by surveying the condition of the correction wall body, and for the wall body with serious defects, such as cracks, serious cracks, local settlement and local bulging, the correction scheme is formulated pertinently before correction, so that the correction scheme is implemented after the strength of the correction wall body is repaired, the service life of the correction wall body can be greatly prolonged, the success rate of correction of the wall body can be improved, the correction risk of the wall body is reduced, and a good protection effect can be achieved for the wall body with high repair value.
Description
Technical Field
The invention relates to the technical field of building repair, in particular to a deviation rectifying and righting and structure reinforcing method for a rammed earth wall.
Background
The earth building is a rammed earth building form, combines local special geographical environment, has the functions of living and defense, and the building materials comprise earth, sand and stone, bamboo wood, even brown sugar and egg white, which are locally obtained, the outer wall can be as thick as one to two meters, and the earth building is firm and can resist the attack of wild animals or thieves, and has the functions of fire prevention, seismic resistance, warmness in winter and coolness in summer and the like.
Due to the inherent defects of the soil mass and the long-term maintenance of the soil wall of the earth building, various structural safety problems exist in the past for a long time, the wall body of the earth wall is seriously inclined, the structural safety of the wall body is directly influenced, and the structural safety of the cultural relic body is influenced, so that a corresponding deviation rectifying scheme needs to be formulated, but the existing deviation rectifying scheme is difficult to realize effective deviation rectifying effect aiming at some serious wall problems (such as serious diseases aiming at local settlement, cracking, local outward bulging and the like).
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a deviation rectifying and righting and structure reinforcing method for a rammed earth wall, which can effectively rectify and reinforce the rammed earth wall with serious problems.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
The application provides a deviation rectifying and righting and structure reinforcing method for a rammed earth wall, which comprises the following steps:
acquiring a survey evaluation result based on the overall condition of the wall body to be rectified;
and (4) setting and implementing a wall body repairing scheme based on the survey evaluation result, and then executing the wall body rectifying scheme, or directly executing the wall body rectifying scheme.
Further, the correction and centralization and structure reinforcement method for the rammed earth wall is characterized in that the acquisition method of the survey evaluation result specifically comprises the following steps:
dividing at least one grid on a wall body to be rectified;
measuring and investigating target parameters in unit grids;
generating the survey evaluation results based on the target parameters;
wherein the target parameters include strength, perpendicularity, cracking degree, efflorescence degree and flatness.
Further, the deviation rectifying and centering and structure reinforcing method for the rammed earth wall is further defined, wherein the wall repairing scheme comprises the following steps:
for the wall to be rectified with local sinking deformation, separating a sinking part from the walls on two sides by using a foundation, embedding a supporting and lifting mechanism at the bottom of the sinking part, and restoring the reset cracked wall after the sinking part is vertically upwards jacked to the original position by the supporting and lifting mechanism;
for the cracked wall body to be rectified, after butterfly grooves are respectively chiseled on two sides along the direction perpendicular to the crack, the butterfly-knot-shaped clamping piece is embedded to form a tie for soil bodies on two sides of the crack, a vertical hole is drilled in the top of the wall body, and reinforcing ribs and viscous filling pieces are implanted into the hole.
Further, the deviation rectifying and centering and structure reinforcing method for the rammed earth wall is further defined, wherein the wall body deviation rectifying scheme comprises the following steps:
a supporting system is erected outside the wall body to be rectified;
cutting off the wall body to be rectified and wall bodies on two sides, and cutting grooves in the foundation;
arranging a jacking device on the outer side of the wall body to be rectified;
the jacking device performs jacking deviation rectification on the wall body based on the deviation rectification parameters;
the deviation correction parameters comprise jacking horizontal displacement parameters obtained based on the setting height of the jacking device and the inclination angle of the deviation correction part of the wall body, and the jacking horizontal displacement parameters are provided with a plurality of deviation correction nodes.
Further, the deviation rectifying, centering and structure reinforcing method for the rammed earth wall further includes:
building a simulation environment based on the overall condition of the wall to be corrected, performing wall jacking under the simulation environment and acquiring a simulation correction result;
and correcting the deviation correction parameters based on the simulated deviation correction result.
Further, the deviation rectifying and centering and structure reinforcing method for the rammed earth wall is further limited, wherein the jacking device further comprises a deviation rectifying wall body arrangement permanent reinforcing member before performing wall body jacking deviation rectifying based on the deviation rectifying parameters, and the arrangement method of the permanent reinforcing member specifically comprises the following steps:
arranging a flat steel drawknot between the wall bodies of the deviation correcting part and the non-deviation correcting part, and simultaneously slotting in the opposite direction of the inclination in the deviation correcting wall body, wherein the length of the slotting is greater than the horizontal length of the inclination of the deviation correcting wall body;
and/or the adjacent wall body of the deviation correcting wall body is provided with a split groove, an anchor plate is fixedly arranged at the corresponding position of the split groove, the length of the split groove is greater than the horizontal length of the deviation correcting wall body, the split plate capable of sliding in the split groove is fixedly arranged on the deviation correcting wall body, and the split plate and the anchor plate are split through bolts.
Further limiting, the deviation rectifying, righting and structure reinforcing method for the rammed earth wall comprises the following steps:
and for the wall with local bulging, a bulging range is defined, and the bulging part is jacked back to the original position by utilizing a jacking device arranged on a supporting system outside the wall.
Further limiting, the correction centralizing and structure reinforcing method for the rammed earth wall further comprises temporary reinforcement protection of the wall body to be corrected before the support system is built outside the wall body to be corrected, and the specific method of the temporary reinforcement protection comprises the following steps:
a plurality of reinforcing areas are divided inside and outside the to-be-corrected wall part based on the inclined range, rear formworks are placed inside and outside the to-be-corrected wall part and drilled in a split mode, battens are placed outside the to-be-corrected wall part in an array mode, and the rear formworks and the battens form a temporary reinforcing whole through split screws and butterfly clips.
Further limiting, the correction and centralization and structure reinforcement method for the rammed earth wall further comprises the steps of integral reinforcement of the correction wall body and strength detection after the integral reinforcement after the execution of the wall body correction scheme, wherein if the strength detection is qualified, the wall body correction acceptance check is executed, and otherwise, the integral reinforcement of the correction wall body is executed again.
Further limiting, the method for rectifying and righting the rammed earth wall and reinforcing the structure comprises the following specific steps of:
the deviation correcting wall body and the adjacent wall body are welded and positioned through the anchor plate and the counter pull plate;
and a gap between the wall body deviation rectifying part and the non-deviation rectifying part is embedded with a gasket and filled with sealant, and the two parts are welded and fixed with the anchor rod through flat steel.
The invention has at least the following beneficial effects:
1. by surveying the condition of the deviation rectifying wall body, the deviation rectifying scheme of the deviation rectifying wall body can be more accurately formulated, and for the wall body with serious defects, such as cracks, serious cracking, local sinking and local bulging, before the deviation rectifying, the repair scheme is specifically formulated for the deviation rectifying wall body, so that the self strength of the deviation rectifying wall body is repaired, and then the deviation rectifying scheme is implemented, thereby not only greatly prolonging the service life of the deviation rectifying wall body, but also improving the success rate of the deviation rectifying of the wall body, reducing the deviation rectifying risk of the wall body, avoiding the occurrence of working accidents caused by the self condition of the wall body when the wall body is rectified, and playing a good protection effect on the wall body with higher repairing value;
2. the supporting system is erected on the periphery of the wall body to be corrected, and the jacking device performs jacking correction of the wall body based on the correction parameters, so that the correction efficiency is high, the wall body is protected in a multi-azimuth manner in the whole correction process, and the reliability and the stability of the correction process of the wall body are ensured;
3. aiming at the wall body to be corrected with poor self condition, the temporary reinforcement protection is carried out on the wall body before the wall body is corrected, so that the risk of correcting the wall body is further reduced.
Drawings
FIG. 1 is a schematic structural diagram of a wall body to be rectified in the method for rectifying and strengthening and structurally reinforcing a rammed earth wall according to the embodiment of the present application;
FIG. 2 is a schematic structural diagram of a "support system" part of the method for rectifying deviation, strengthening and structurally reinforcing a rammed earth wall according to the embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a "support system" part of the method for rectifying, straightening and structurally reinforcing a rammed earth wall according to the embodiment of the present application;
FIG. 4 is a schematic diagram illustrating the steps of the deviation rectifying and strengthening and structural reinforcing method for the rammed earth wall according to the embodiment of the present application;
FIG. 5 is a schematic flow chart illustrating a method for rectifying deviation, strengthening and structurally reinforcing a rammed earth wall according to an embodiment of the present application.
Reference numerals
The wall comprises an outer wall-100, a gable wall-200, an anchor plate-310, a split groove-320, a split plate-330, a jack-410, a support frame-420 and a jacking node-430.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The method for rectifying deviation, righting and strengthening the rammed earth wall and the structure thereof provided by the embodiment of the present application are described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 5, an embodiment of the present application provides a method for rectifying and strengthening and reinforcing a rammed earth wall, including:
s1, surveying and evaluating the overall condition of a wall;
s2, a deviation rectifying scheme is formulated and implemented based on the wall condition, and then is executed or is directly executed;
s3, integrally reinforcing the wall after the wall is rectified;
and S4, repairing the appearance of the wall.
In S1, as shown in fig. 1, the overall situation of the wall body is surveyed mainly to grasp the basic situation of the wall body, the inclined part generally appears on the outer wall 100 outside the outer ring earth building from the environment, the inclined part is mostly caused by improper foundation protection, is soaked by rainwater or is a lime-soil foundation, has poor water resistance, and in addition, the outer wall 100 and the gable 200 have poor drawability or no drawability, and the outer wall 100 has a high height, and after long-term use, the inclined part is unstable, and is mainly reflected in that the outer wall 100 and the gable 200 are cracked and separated and have large cracks.
It can be understood that, besides the inclination of the outer wall 100, the serious damage of the wall body also includes the cracking, local bulging and local settlement cracking deformation of the outer wall 100.
In a preferred embodiment, in S1, the method for surveying the entire wall is a grid method, that is, the outer wall 100 is divided into 1 meter by 1 meter grids, each grid is subjected to disease measurement and investigation such as strength, verticality, cracking, weathering and flatness, and after the investigation measurement, the entire wall is measured, and finally, an overall disease evaluation is made.
It can be understood that, based on the visual survey of the outer wall 100, the size of the gridding can be adaptively adjusted, for example, when the wall damage condition of the outer wall 100 is concentrated, the damaged area can be gridded and the size of the gridding can be reduced, so that the accuracy of the wall condition survey can be ensured.
In a preferred embodiment, in S2, for the external wall 100 with a complete structure, a good health condition, and no cracking, bulging, local settlement cracking, and other diseases of the wall body, the deviation rectification scheme can be directly executed because the integrity of the external wall 100 is good and the external wall itself can resist a certain load.
The concrete deviation rectifying scheme is as follows: tile unloading → erection of an outer temporary support system (serving as a stress system and a limit system) → softening of the deviation correcting part of the outer wall 100 → cutting and disconnecting of the deviation correcting part and the walls on two sides, cutting groove of the foundation → installation of a jack 410 on the outer side → jacking and deviation correction → righting and returning.
As shown in fig. 2 and 3, the supporting system includes a supporting frame 420 built on the outer side of the outer wall 100, the supporting frame 420 is specifically a support built by crossing the rods, the outer wall 100 is divided into jacking nodes 430, the jacking nodes 430 are distributed in an array, the array spacing between the horizontal direction and the longitudinal direction is set to be 1 meter, the array spacing is set based on the wall condition of the outer wall 100, if the wall condition of the outer wall 100 is better, the array spacing can be increased as appropriate, otherwise, the array spacing is decreased, a plurality of jacks 410 are mounted on the supporting frame 420, and the positions of the jacks 410 correspond to the jacking nodes 430 respectively.
Meanwhile, in order to prevent the deviation rectifying part of the outer wall 100 from being collapsed by external flashing before or during jacking, a flat steel tie is arranged between the deviation rectifying part of the outer wall 100 and the wall body of the deviation rectifying part, and in order to enable the flat steel to be smoothly displaced in the deviation rectifying of the outer wall 100, a groove needs to be formed in the outer wall 100 in the opposite direction of inclination, and the length of the groove is larger than the horizontal length of the inclination of the outer wall 100.
It can be understood that, if the outer wall 100 needs to be integrally corrected with respect to the gable 200, the gable 200 is required to be provided with the opposite pull groove 320, the anchor plate 310 is fixedly arranged at a position corresponding to the opposite pull groove 320, the length of the groove is greater than the horizontal length of the outer wall 100, the outer wall 100 is fixedly provided with the opposite pull plate 330 capable of sliding in the opposite pull groove 320, the opposite pull plate 330 is connected with the anchor plate 310 through a bolt, and the opposite pull between the outer wall 100 and the gable 200 can be realized through adjusting the bolt.
The wall softening of the deviation rectifying part of the outer wall 100 is mainly used for improving the flexibility of the deviation rectifying part of the outer wall 100, and the concrete means is as follows: drawing the position of the outer wall 100 needing to be rectified, determining the range needing to be softened, brushing the outer wall by using a soft brush in batches and by using water in times, wherein the brushing is carried out once every 30 minutes, the soaking and the soaking are ensured each time, the brushing is repeatedly carried out for more than 20 times, and the softening depth reaches more than 20 cm, so that the outer wall is qualified.
It can be understood that the application condition of the wall softening of the deviation rectifying part of the outer wall 100 is mainly based on the wall condition, when the condition of the wall can meet the deviation rectifying requirement, the step can be omitted, and meanwhile, the requirements of painting frequency, times and infiltration depth can be adaptively adjusted based on the wall condition.
The jacking, correcting and righting homing means of the correcting part of the outer wall 100 specifically comprises the following steps: before deviation correction, according to the height set by the jack 410 and the inclination angle of the deviation correcting part of the outer wall 100, the horizontal displacement of each position of the deviation correcting part of the outer wall 100, which needs to be actually jacked, is accurately calculated, then an accurate numerical value is input into a computer, jacking is gradually started, and before implementation, a simulation test of a sample plate needs to be performed outside a body so as to obtain actual deviation data and theoretical deviation data, so that timely deviation correction can be conveniently performed in the implementation.
It can be understood that, in the deviation rectifying process, the rigidity, strength and stability of the supporting system must be firm, the bearing capacity and the anti-overturning capacity must be calculated, the load requirement is met, if the deviation rectifying process is excessive, reverse deviation rectifying measures must be taken in time to rectify the deviation to the correct position, the principle of frequent and few deviation rectifying needs to be followed, the sudden change of the angle of the deviation rectifying part of the outer wall 100 is avoided, meanwhile, the monitoring is strengthened in the deviation rectifying process, special conditions are found, the checking is suspended in time, and the implementation is carried out after the problems are eliminated.
In S3 and S4, the concrete steps of the integral reinforcement and the appearance restoration of the wall body are as follows: the flat steel and the opposite pull plate 330 are fixed in a slideway → the flat iron is embedded in the opposite pull groove 320 → the support system is dismantled → the surface of the outer wall 100 is treated with antique treatment.
Wherein, the band steel, be fixed in the back of rectifying to arm-tie 330 slide and implement after finishing, the concrete implementation means of the whole reinforcement of wall body is: the anchor plate 310 between the outer wall 100 and the gable 200 is welded and positioned with the pull plate 330, the deviation-correcting wall and the non-deviation-correcting wall of the outer wall 100 are fixed by embedding iron pot gaskets, so that the outer wall is prevented from rebounding, epoxy mortar is poured into gaps for solidification, air and moisture are prevented from entering deeply, and flat steel between the deviation-correcting wall and the non-deviation-correcting wall of the outer wall 100 is welded and fixed with the anchor rod.
In the embodiment of the application, the correction centralizing and structure reinforcing method for the rammed earth wall is adopted, by setting up the peripheral support system, after the connection between the correction unit and the peripheral wall body and the foundation is cut off and the reinforcement is installed on the correction unit, the jack 410 is adopted to jack the correction unit for correction centralizing, the correction scheme is established based on the early survey of the wall body condition, the correction method is suitable for the better correction scene of the wall body health condition, not only is the correction efficiency high, but also the wall body is protected in a multi-azimuth mode in the whole correction process, and therefore the reliability and the stability of the correction process are guaranteed.
In a preferred embodiment, the surface of the exterior wall 100 is weathered by the following steps: in order to conceal the reinforcing member, the reinforcing member is coordinated with the peripheral earth wall in the slotting part of the wall body, bamboo nails are driven into the reinforcing steel member, a hemp rope net is hung, the bamboo nails are arranged in a quincunx shape, the distance is 10 cm, wood moulds are fixed on the surface by bolts, and after small-tamping is carried out in a layering mode, rainwater washing simulation is carried out, so that the old-making effect is achieved.
In a preferred embodiment, in S3, after the wall is integrally reinforced, the method further includes detecting strength of the deviation-correcting wall, where the detection indexes include the condition of the wall and stability of the wall reinforcing structure, and if the strength of the deviation-correcting wall cannot reach the predetermined index, the wall is integrally reinforced again.
In a preferred embodiment, in S2, when the wall body itself is seriously damaged, such as cracks, severe cracking, local sinking, local bulging, and the like, because the wall body has no relevant strength, a wall body to be corrected needs to be made and a wall body repair scheme needs to be adopted to repair the wall body to be corrected based on the problem of the wall body to be corrected, so that the strength of the wall body is improved, and correction and centering are conveniently performed in the next step.
The wall body repairing scheme specifically comprises the following steps:
(1) Local bulge disease: defining a bulging range, and jacking the bulging part back to the original position by using a horizontally erected micro jack and an outer side supporting system;
(2) Cracking diseases: drilling butterfly grooves with the length of 30 cm and the depth of 5 cm from two sides along the direction perpendicular to the crack, embedding a bowknot-shaped hardwood (such as elm) to form a tie-action on soil bodies on two sides of the crack, drilling vertical holes with the aperture of 5 cm and the interval of 300 cm at the top of a wall body, then implanting wood ribs into the holes and pouring glutinous rice pulp to play a role in reinforcing and bonding the soil bodies;
(3) Local settlement deformation: cutting off the connection between the sinking part and the two sides by using shovels, cutting off the connection between the bottom and the foundation, embedding a jack, vertically and upwards jacking the sunk soil blocks to the original position by using the jack, and then reinforcing by adopting the scheme (2).
It can be understood that, after the wall repairing scheme is performed to improve the strength of the wall to be corrected, the correction scheme for the wall is substantially the same as that described above, and the main difference is that in order to improve the overall strength of the outer wall 100, the outer wall 100 needs to be temporarily reinforced and protected before the supporting system is installed.
The concrete scheme of temporary reinforcement protection is as follows: the part of the outer wall 100 to be corrected is divided into a plurality of reinforcing areas inside and outside, the reinforcing areas are divided into a plurality of blocks according to the inclined range, the height and the width of each block are generally a processing area every 1 meter, 15mm rear templates are placed inside and outside the part of the outer wall 100 to be corrected, opposite-pulling holes are drilled, battens are placed outside the part of the outer wall 100 to be corrected at intervals of every meter, and the rear templates and the battens form a temporarily-reinforced whole body by adopting opposite-pulling screws and butterfly clamps.
It can be understood that the division of the reinforcing areas is also made based on the wall condition of the deviation rectifying part of the outer wall 100, and if the wall condition of the outer wall 100 is poor, the area of a single reinforcing area can be properly reduced, so that the reinforcing effect of the wall is ensured.
It can be understood that, the temporary reinforcement protection mainly aims to ensure that the strength of the deviation rectifying wall body can support the deviation rectifying action in the deviation rectifying process, and after the deviation rectifying of the wall body is completed, the temporary reinforcement is required to be removed and a permanent reinforcement member is required to be installed, so that the strength of the deviation rectifying wall body is further improved, and the stability of the deviation rectifying wall body is stronger.
Similarly, because the soil quality and the health condition of different deviation-correcting walls have deviation, a simulation test needs to be carried out on the periphery during repair, corresponding simulation data is obtained and then implemented on the wall, damage to the wall is avoided, and other requirements in the deviation-correcting process are the same as the above, and are not repeated.
In the embodiment of the application, adopt foretell correction of rammed earth wall to right and structure strengthening method, it is serious to the wall body disease of rectifying, if be chapped, the fracture is serious, local heavy, the wall body of local bulging, earlier implement the wall body restoration to the wall body itself of rectifying before rectifying, its wall body restoration scheme is based on the survey problem condition pertinence formulation of the wall body of rectifying, make the intensity of the wall body of rectifying effectively improve, be convenient for implement the scheme of rectifying of wall body on next step, adopt above-mentioned mode, can reduce the wall body risk of rectifying greatly, can play fine guard effect to the higher wall body of repairing value.
It is understood that the method is not limited to the correction and repair of the exterior wall 100, and the above embodiments are mainly used to illustrate the overall idea of the method, and are also applicable to the correction of wall bodies of other types (such as the gable 200) or other health conditions.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A deviation rectifying and centering and structure reinforcing method for a rammed earth wall is characterized by comprising the following steps:
acquiring a survey evaluation result based on the overall condition of the wall body to be rectified;
and (4) performing a wall body deviation rectifying scheme after a wall body repairing scheme is formulated and implemented based on the survey evaluation result, or directly performing the wall body deviation rectifying scheme.
2. The method for rectifying, strengthening and structurally reinforcing the rammed earth wall according to claim 1, wherein the method for obtaining the survey evaluation result comprises:
dividing at least one grid on a wall body to be rectified;
measuring and investigating target parameters in the unit grid;
generating the survey evaluation results based on the target parameters;
wherein the target parameters include strength, verticality, cracking degree, efflorescence degree, and flatness.
3. The method for rectifying, strengthening and structurally reinforcing rammed earth wall according to claim 1, wherein the wall repairing scheme comprises:
for the wall to be rectified with local sinking deformation, separating a sinking part from the wall bodies on two sides by a foundation, embedding a supporting and lifting mechanism at the bottom of the sinking part, and restoring the reset crack wall body after the sinking part is vertically upwards jacked to the original position by the supporting and lifting mechanism;
for the cracked wall body to be rectified, after butterfly grooves are respectively chiseled out of two sides along the direction perpendicular to the crack, the butterfly-knot-shaped clamping piece is embedded to form a tie for soil bodies on two sides of the crack, a vertical hole is drilled in the top of the wall body, and reinforcing ribs and viscous filling pieces are implanted into the hole.
4. The method for rectifying and strengthening and structurally reinforcing rammed earth wall according to claim 1, wherein the wall rectifying scheme comprises:
a supporting system is erected outside the wall body to be rectified;
cutting off the part of the wall body to be rectified from the wall bodies on two sides and cutting a foundation into grooves;
arranging a jacking device on the outer side of the wall body to be rectified;
the jacking device performs jacking deviation rectification on the wall body based on the deviation rectification parameters;
the deviation correction parameters comprise jacking horizontal displacement parameters obtained based on the setting height of the jacking device and the inclination angle of the deviation correction part of the wall body, and the jacking horizontal displacement parameters are provided with a plurality of deviation correction nodes.
5. The method for rectifying and strengthening and structurally reinforcing the rammed earth wall according to claim 4, wherein before the jacking device performs the wall jacking rectification based on the rectification parameters, the method further comprises:
building a simulation environment based on the overall condition of the wall to be corrected, performing wall jacking under the simulation environment and acquiring a simulation correction result;
and correcting the deviation correction parameters based on the simulated deviation correction result.
6. The deviation rectifying and centering and structure reinforcing method for the rammed earth wall according to claim 4, wherein before the jacking device performs wall jacking deviation rectifying based on deviation rectifying parameters, the method further comprises arranging a permanent reinforcing member on the deviation rectifying wall, and the method for arranging the permanent reinforcing member specifically comprises the following steps:
arranging a flat steel drawknot between the wall bodies of the deviation correcting part and the non-deviation correcting part, and simultaneously slotting in the opposite direction of the inclination in the deviation correcting wall body, wherein the length of the slotting is greater than the horizontal length of the inclination of the deviation correcting wall body;
and/or the adjacent wall body of the deviation correcting wall body is provided with a split groove, an anchor plate is fixedly arranged at the corresponding position of the split groove, the length of the split groove is greater than the horizontal length of the deviation correcting wall body, the split plate capable of sliding in the split groove is fixedly arranged on the deviation correcting wall body, and the split plate and the anchor plate are split through bolts.
7. The method for rectifying, righting and structurally reinforcing the rammed earth wall according to claim 1 or 4, wherein the wall repairing scheme comprises the following steps:
and for the wall with local bulging, the bulging range is defined, and the bulging part is jacked back to the original position by utilizing a jacking device arranged on a supporting system at the outer side of the wall.
8. The deviation-rectifying and centering and structure-reinforcing method for the rammed earth wall according to claim 4, wherein a temporary reinforcing protection for the wall body to be rectified is further included before a support system is built outside the wall body to be rectified, and the specific method for the temporary reinforcing protection is as follows:
a plurality of reinforcing areas are divided inside and outside the to-be-corrected wall part based on the inclination range, rear templates are placed inside and outside the to-be-corrected wall part and drilled in a split mode, battens are placed outside the to-be-corrected wall part in an array mode, and the rear templates and the battens form a temporary reinforcing whole through split screws and butterfly clips.
9. The method for rectifying, righting and structurally reinforcing the rammed earth wall according to claim 1, wherein the execution of the wall rectifying scheme further comprises integral rectification wall body reinforcement and strength detection after the integral rectification, if the strength detection is qualified, the wall rectifying acceptance is executed, otherwise, the integral rectification wall body reinforcement is executed again.
10. The method for rectifying and strengthening and structurally reinforcing the rammed earth wall according to claim 6 or 9, wherein the concrete method for integrally reinforcing the rectifying wall is as follows:
the deviation rectifying wall body and the adjacent wall body are welded and positioned through the anchor plate and the counter pull plate;
and a gap between the wall body deviation rectifying part and the non-deviation rectifying part is embedded with a gasket and filled with sealant, and the two parts are welded and fixed with the anchor rod through flat steel.
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