CN114059582B - Irregular gravity retaining wall construction process - Google Patents
Irregular gravity retaining wall construction process Download PDFInfo
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- CN114059582B CN114059582B CN202111391886.3A CN202111391886A CN114059582B CN 114059582 B CN114059582 B CN 114059582B CN 202111391886 A CN202111391886 A CN 202111391886A CN 114059582 B CN114059582 B CN 114059582B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0275—Retaining or protecting walls characterised by constructional features cast in situ
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0007—Production methods using a mold
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Retaining Walls (AREA)
Abstract
The invention relates to a construction process of an irregularly-shaped gravity retaining wall, and belongs to the technical field of slope support design. The casting module is set to be the upper plate angle adjustable template, and when in construction, the upper plate angle range value is preliminarily determined according to the slope angle, the middle value of the range value is used as the initial upper plate angle, and the upper plate angle is determined according to the comparison result of the slope wall distance and the preset slope wall distance, so that the upper plate angle of the casting module is precisely controlled, the casting plane of each step of the retaining wall which is cast is high in front and low in back, the stability of soil is ensured, the vibration duration when concrete is cast is determined according to the comparison result of the determined or adjusted upper plate angle and the preset upper plate angle, and the vibration duration is corrected according to the upper plate angle difference of the retaining wall which is cast in two steps, so that the control of the construction process is further improved, and the protection effect on the retaining wall is improved.
Description
Technical Field
The invention relates to the technical field of side slope support, in particular to a construction process of an irregularly-shaped gravity retaining wall.
Background
The retaining wall is a structure for supporting roadbed filling soil or hillside soil and preventing deformation and instability of the filling soil or soil, and a part which is in direct contact with the supported soil in the cross section of the retaining wall is called a wall back; the part opposite to the back of the wall, which is adjacent to the air, is called a wall surface; the area in direct contact with the wall base is called the base; the top surface of the wall opposite the base is called the wall crown; the front end of the base is called the toe; the rear end of the foundation is called the heel, and there are also a number of classifications among retaining walls, more commonly gravity retaining walls.
The gravity type retaining wall is characterized in that the self gravity of the retaining wall is used for maintaining the stability of the retaining wall under the action of soil pressure, and the gravity type retaining wall is a common retaining wall in China. Gravity retaining walls can be built from masonry or concrete, and are generally formed into a simple trapezoid.
The existing gravity type retaining wall can not drain water better when in use, the service life of the retaining wall is not improved better in drainage efficiency, the retaining wall is easy to erode by water, the retaining wall can not be prevented from being deformed and unstable by filling soil or soil body more stably, and the safety protection effect is not better guaranteed.
Disclosure of Invention
Therefore, the invention provides an irregular gravity type retaining wall construction process, which is used for solving the problem that the retaining wall is easy to deform and unstably so as to cause poor protective effect on soil in the prior art.
In order to achieve the above object, the present invention provides an irregularly shaped gravity retaining wall construction process, comprising:
s1, breaking a guniting surface on the side wall of a foundation trench and splicing bars on the side surface of the foundation trench and the bottom surface of the foundation trench according to construction design;
s2, supporting an adjustable template at the retaining wall and binding retaining wall steel bars in the template;
s3, determining the upper plate angle of the adjustable template and pouring retaining wall concrete when the upper plate angle is determined to be finished;
s4, inserting splicing reinforcing steel bars into the reserved holes of the adjustable templates after pouring is completed;
and S5, removing the form when the concrete of the retaining wall reaches the preset time, maintaining the retaining wall, and repeating the step 2 until the construction of all the retaining walls is completed when the strength of the retaining wall reaches the first threshold value.
Further, in the step S3, when the retaining wall construction is performed, the retaining wall slope is measured in the field, the angle range of the adjustable template upper plate angle theta is determined according to the angle R of the slope,
the construction design is provided with a first preset slope angle R1, a second preset slope angle R2, a third preset slope angle R3, a first preset angle range W1, a second preset angle range W2 and a third preset angle range W3, wherein R1 is more than R2 and less than R3, W1 is more than W2 and less than W3,
when R is less than or equal to R1, determining the angle range of the upper plate angle of the adjustable template as a first preset angle range W1;
when R1 is more than R and less than or equal to R2, determining the angle range of the upper plate angle of the adjustable template as a second preset angle range W2;
and when R is more than R2, determining the angle range of the upper plate angle of the adjustable template as a third preset angle range W3.
Further, when the angle range of the upper plate angle of the adjustable template is determined to be completed, the middle value of the angle range Wi is taken as an initial upper plate angle theta to start construction, wherein the angle range Wi comprises an angle range minimum value Wmini and an angle range maximum value Wmaxi, and i=1, 2 and 3 are set.
Further, when the retaining wall is constructed in each step, actually measuring a slope wall distance S between a slope and a structural outer wall, comparing the slope wall distance S with a slope wall distance S0 in a construction design, adjusting the upper plate angle according to a comparison result, and judging to adjust the upper plate angle if S is more than S0; and if S is less than or equal to S0, judging that the upper plate angle is not adjusted.
Further, when the upper plate angle is determined to be adjusted, calculating a difference DeltaS between the slope wall distance S and the slope wall distance S0 in the construction design, setting DeltaS=S-S0, selecting a corresponding angle adjustment coefficient according to a comparison result of the difference and a preset slope wall distance difference to adjust the upper plate angle,
the construction design is also provided with a first preset slope wall distance difference delta S1, a second preset slope wall distance difference delta S2, a third preset slope wall distance difference delta S3, a first angle adjustment coefficient K1, a second angle adjustment coefficient K2 and a third angle adjustment coefficient K3, wherein delta S1 < [ delta ] S2 < [ delta ] S3, K1 < K2 < K3,
when DeltaS 1 is less than or equal to DeltaS < DeltaS2, selecting a first angle adjusting coefficient K1 to adjust the angle of the upper plate;
when DeltaS 2 is less than or equal to DeltaS < DeltaS3, selecting a second angle adjusting coefficient K2 to adjust the angle of the upper plate;
when the delta S is more than or equal to delta S3, selecting a third angle adjusting coefficient K3 to adjust the upper plate angle;
when the ith angle adjustment coefficient Ki is selected to adjust the upper plate angle, i=1, 2,3 is set, the adjusted upper plate angle is set to θ ', and θ' =θ×ki is set.
Further, in the step S3, when the determination of the upper plate angle is completed, the vibration duration t of the poured concrete is determined according to the template interval H, and the corresponding vibration duration adjustment coefficient is selected according to the comparison result of the adjusted upper plate angle θ' and the preset upper plate angle to adjust the vibration duration,
the construction design is also provided with a first preset upper plate angle theta 1, a second preset upper plate angle theta 2, a third preset upper plate angle theta 3, a first vibration duration adjusting coefficient X1, a second vibration duration adjusting coefficient X2 and a third vibration duration adjusting coefficient X3, wherein theta 1 is more than theta 2 and less than theta 3, X1 is more than X2 and less than X3 is more than 1 and less than 2,
when theta 1 is less than or equal to theta' and less than theta 2, a first vibration duration adjusting coefficient X1 is selected to adjust the vibration duration;
when theta 2 is less than or equal to theta' and less than theta 3, selecting a second vibration duration adjusting coefficient X2 to adjust the vibration duration;
when theta' is more than or equal to theta 3, selecting a third vibration duration adjustment coefficient X3 to adjust the vibration duration;
when the j-th vibration duration adjusting coefficient Xj is selected to adjust the vibration duration, j=1, 2 and 3 are set, the poured concrete is vibrated according to the adjusted vibration duration t ', and t' =t×Xj is set.
Further, when pouring the next retaining wall, comparing the upper plate angle of the adjustable template of the next retaining wall or the adjusted upper plate angle with the upper plate angle of the last step, calculating the upper plate angle difference delta theta of the adjacent two-step pouring, selecting a corresponding vibration duration correction coefficient according to the comparison result of the upper plate angle difference and the preset upper plate angle difference to correct the vibration duration,
wherein the construction design is also provided with a first preset upper plate angle difference delta theta 1, a second preset upper plate angle difference delta theta 2, a third preset upper plate angle difference delta theta 3, a first vibration duration correction coefficient U1, a second vibration duration correction coefficient U2 and a third vibration duration correction coefficient U3, wherein delta theta 1 is less than delta theta 2 and less than delta theta 3, U1 is less than U2 and less than U3 is less than 1.5,
when delta theta is smaller than delta theta 1, judging that the vibration duration is not corrected;
when delta theta 1 is less than or equal to delta theta and less than delta theta 2, a first vibration duration correction coefficient U1 is selected to correct the vibration duration;
when delta theta 2 is less than or equal to delta theta and less than delta theta 3, a second vibration duration correction coefficient U2 is selected to correct the vibration duration;
when delta theta is more than or equal to delta theta 3, a third vibration duration correction coefficient U3 is selected to correct the vibration duration;
when the nth vibration duration correction coefficient Un is selected to correct the vibration duration, n=1, 2,3 is set, the corrected vibration duration is set as t ', and t' = t×un or t '= t' ×un is set.
Further, when determining the vibrating duration of pouring the retaining wall, determining the corresponding vibrating duration according to the comparison result of the template interval H and the preset template interval,
the construction design is also provided with a first preset template interval H1, a second preset template interval H2, a third preset template interval H3, a first vibrating duration t1, a second vibrating duration t2 and a third vibrating duration t3, wherein H1 is more than H2 and less than H3, t1 is more than t2 and less than t3,
when H1 is less than or equal to H2, preliminarily setting the vibrating duration as a first vibrating duration t1;
when H2 is less than or equal to H3, the vibration time length is preliminarily set as a second vibration time length t2;
when H is more than or equal to H3, the vibrating duration is initially set to be the third vibrating duration t3.
Compared with the prior art, the method has the beneficial effects that the casting module is set as the template with the adjustable upper plate angle, the upper plate angle range value is preliminarily determined according to the slope angle during construction, the middle value of the range value is used as the initial upper plate angle, and the upper plate angle is determined to be adjusted according to the comparison result of the slope wall distance and the preset slope wall distance, so that the upper plate angle of the casting template is precisely controlled, the casting plane of each step of the retaining wall after casting is high in front and low in back, the soil stability is ensured, and the protection effect on the retaining wall is improved.
Further, the vibration duration when concrete is poured is determined according to the comparison result of the determined or adjusted upper plate angle and the preset upper plate angle, and the vibration duration is corrected according to the upper plate angle difference of the retaining wall poured in two steps, so that the control of the construction process is further improved, and the protection effect of the retaining wall is further improved.
Drawings
FIG. 1 is a flow chart of the construction process of the irregularly shaped gravity retaining wall according to the present invention;
FIG. 2 is a schematic view of an adjustable formwork structure for the irregularly shaped gravity retaining wall construction process according to the present invention;
FIG. 3 is a top view of an irregularly shaped gravity retaining wall according to the present invention;
fig. 4 is a side structural view of the irregularly shaped gravity retaining wall according to the present invention.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
Please refer to fig. 1, which is a flowchart of the construction process of the irregular gravity retaining wall according to the present invention.
The invention relates to a construction process of an irregularly-shaped gravity retaining wall, which comprises the following steps:
s1, breaking a guniting surface on the side wall of a foundation trench and splicing bars on the side surface of the foundation trench and the bottom surface of the foundation trench according to construction design;
s2, supporting an adjustable template at the retaining wall and binding retaining wall steel bars in the template;
s3, determining the upper plate angle of the adjustable template and pouring retaining wall concrete when the upper plate angle is determined to be finished;
s4, inserting splicing reinforcing steel bars into the reserved holes of the adjustable templates after pouring is completed;
and S5, removing the form when the concrete of the retaining wall reaches the preset time, maintaining the retaining wall, and repeating the step 2 until the construction of all the retaining walls is completed when the strength of the retaining wall reaches the first threshold value.
Specifically, the pouring module is set to be an upper plate angle adjustable template, an upper plate angle range value is preliminarily determined according to a slope angle during construction, the middle value of the range value is used as an initial upper plate angle, and the upper plate angle is determined to be adjusted according to the comparison result of the slope wall distance and the preset slope wall distance, so that the upper plate angle of the pouring template is accurately controlled, the pouring plane of each step of retaining wall after pouring is high and low, the stability of soil is guaranteed, and the protection effect on the retaining wall is improved.
With continued reference to fig. 1, in the construction process of the irregularly shaped gravity type retaining wall of the present invention, in the step S3, when the retaining wall is constructed, a slope of the retaining wall is measured in the field, and an angle range of the adjustable template upper plate angle θ is determined according to an angle R of the slope,
the construction design is provided with a first preset slope angle R1, a second preset slope angle R2, a third preset slope angle R3, a first preset angle range W1, a second preset angle range W2 and a third preset angle range W3, wherein R1 is more than R2 and less than R3, W1 is more than W2 and less than W3,
when R is less than or equal to R1, determining the angle range of the upper plate angle of the adjustable template as a first preset angle range W1;
when R1 is more than R and less than or equal to R2, determining the angle range of the upper plate angle of the adjustable template as a second preset angle range W2;
and when R is more than R2, determining the angle range of the upper plate angle of the adjustable template as a third preset angle range W3.
With continued reference to fig. 1, in the construction process of the irregularly shaped gravity retaining wall according to the present invention, when it is determined that the angle range of the upper plate angle of the adjustable formwork is completed, construction is started by taking the intermediate value of the angle range Wi as the initial upper plate angle θ, where the angle range Wi includes the minimum value Wmini of the angle range and the maximum value Wmaxi of the angle range, and i=1, 2,3 is set.
With continued reference to fig. 1, in the construction process of the irregularly shaped gravity retaining wall according to the present invention, during construction of the retaining wall in each step, a slope wall distance S between a slope and an outer wall of a structure is actually measured, and the slope wall distance S is compared with a slope wall distance S0 in a construction design, the upper plate angle is adjusted according to the comparison result, and if S > S0, the upper plate angle is determined to be adjusted; and if S is less than or equal to S0, judging that the upper plate angle is not adjusted.
With continued reference to fig. 1, in the construction process of the irregularly shaped gravity retaining wall according to the present invention, when it is determined that the upper plate angle is adjusted, a difference Δs between the slope wall distance S and the slope wall distance S0 in the construction design is calculated, Δs=s-S0 is set, and a corresponding angle adjustment coefficient is selected according to a comparison result of the difference and a preset slope wall distance difference to adjust the upper plate angle,
the construction design is also provided with a first preset slope wall distance difference delta S1, a second preset slope wall distance difference delta S2, a third preset slope wall distance difference delta S3, a first angle adjustment coefficient K1, a second angle adjustment coefficient K2 and a third angle adjustment coefficient K3, wherein delta S1 < [ delta ] S2 < [ delta ] S3, K1 < K2 < K3,
when DeltaS 1 is less than or equal to DeltaS < DeltaS2, selecting a first angle adjusting coefficient K1 to adjust the angle of the upper plate;
when DeltaS 2 is less than or equal to DeltaS < DeltaS3, selecting a second angle adjusting coefficient K2 to adjust the angle of the upper plate;
when the delta S is more than or equal to delta S3, selecting a third angle adjusting coefficient K3 to adjust the upper plate angle;
when the ith angle adjustment coefficient Ki is selected to adjust the upper plate angle, i=1, 2,3 is set, the adjusted upper plate angle is set to θ ', and θ' =θ×ki is set.
With continued reference to fig. 1, in the construction process of the irregularly shaped gravity retaining wall according to the present invention, in the step S3, when the determination of the upper plate angle is completed, the vibration duration t of the poured concrete is determined according to the template interval H, and the corresponding vibration duration adjustment coefficient is selected according to the comparison result of the adjusted upper plate angle θ' and the preset upper plate angle to adjust the vibration duration,
the construction design is also provided with a first preset upper plate angle theta 1, a second preset upper plate angle theta 2, a third preset upper plate angle theta 3, a first vibration duration adjusting coefficient X1, a second vibration duration adjusting coefficient X2 and a third vibration duration adjusting coefficient X3, wherein theta 1 is more than theta 2 and less than theta 3, X1 is more than X2 and less than X3 is more than 1 and less than 2,
when theta 1 is less than or equal to theta' and less than theta 2, a first vibration duration adjusting coefficient X1 is selected to adjust the vibration duration;
when theta 2 is less than or equal to theta' and less than theta 3, selecting a second vibration duration adjusting coefficient X2 to adjust the vibration duration;
when theta' is more than or equal to theta 3, selecting a third vibration duration adjustment coefficient X3 to adjust the vibration duration;
when the j-th vibration duration adjusting coefficient Xj is selected to adjust the vibration duration, j=1, 2 and 3 are set, the poured concrete is vibrated according to the adjusted vibration duration t ', and t' =t×Xj is set.
With continued reference to fig. 1, in the construction process of the irregularly shaped gravity retaining wall according to the present invention, when the retaining wall is cast in the next step, the upper plate angle of the adjustable formwork of the retaining wall in the next step or the adjusted upper plate angle is compared with the upper plate angle adjusted in the previous step, the upper plate angle difference Δθ of the adjacent two steps of casting is calculated, and the corresponding vibration duration correction coefficient is selected according to the comparison result of the upper plate angle difference and the preset upper plate angle difference to correct the vibration duration,
wherein the construction design is also provided with a first preset upper plate angle difference delta theta 1, a second preset upper plate angle difference delta theta 2, a third preset upper plate angle difference delta theta 3, a first vibration duration correction coefficient U1, a second vibration duration correction coefficient U2 and a third vibration duration correction coefficient U3, wherein delta theta 1 is less than delta theta 2 and less than delta theta 3, U1 is less than U2 and less than U3 is less than 1.5,
when delta theta is smaller than delta theta 1, judging that the vibration duration is not corrected;
when delta theta 1 is less than or equal to delta theta and less than delta theta 2, a first vibration duration correction coefficient U1 is selected to correct the vibration duration;
when delta theta 2 is less than or equal to delta theta and less than delta theta 3, a second vibration duration correction coefficient U2 is selected to correct the vibration duration;
when delta theta is more than or equal to delta theta 3, a third vibration duration correction coefficient U3 is selected to correct the vibration duration;
when the nth vibration duration correction coefficient Un is selected to correct the vibration duration, n=1, 2,3 is set, the corrected vibration duration is set as t ', and t' = t×un or t '= t' ×un is set.
With continued reference to fig. 1, in the construction process of the irregularly shaped gravity retaining wall according to the present invention, when determining the vibrating duration of pouring the retaining wall, determining the corresponding vibrating duration according to the comparison result of the template interval H and the preset template interval,
the construction design is also provided with a first preset template interval H1, a second preset template interval H2, a third preset template interval H3, a first vibrating duration t1, a second vibrating duration t2 and a third vibrating duration t3, wherein H1 is more than H2 and less than H3, t1 is more than t2 and less than t3,
when H1 is less than or equal to H2, preliminarily setting the vibrating duration as a first vibrating duration t1;
when H2 is less than or equal to H3, the vibration time length is preliminarily set as a second vibration time length t2;
when H is more than or equal to H3, the vibrating duration is initially set to be the third vibrating duration t3.
Specifically, the vibration duration when concrete is poured is determined according to the comparison result of the determined or adjusted upper plate angle and the preset upper plate angle, and the vibration duration is corrected according to the upper plate angle difference of the retaining wall poured in two steps, so that the control of the construction process is further improved, and the protection effect of the retaining wall is further improved.
Referring to fig. 2, which is a schematic diagram of an adjustable template structure of the construction process of the irregular gravity retaining wall of the present invention, the adjustable template 1 includes two symmetrically distributed side plates 11 and an angle-adjustable upper plate 12, and the adjustable upper plate is further provided with a preformed hole 13.
Referring to fig. 3 and 4, in the embodiment of the present invention, in the step S4, in order to perform casting on the retaining wall in a step-by-step manner from the bottom surface of the foundation trench, during each casting step, a template side plate is first installed, and the template upper plate is installed according to the adjusted upper plate angle, so that each casting plane is high in front and low in back, and rubble is filled between the retaining walls cast in two steps, thereby improving the stability of the retaining wall and saving resources to a certain extent.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An irregularly shaped gravity type retaining wall construction process is characterized by comprising the following steps:
s1, breaking a guniting surface on the side wall of a foundation trench and splicing bars on the side surface of the foundation trench and the bottom surface of the foundation trench according to construction design;
s2, supporting an adjustable template at the retaining wall and binding retaining wall steel bars in the template;
s3, determining the upper plate angle of the adjustable template and pouring retaining wall concrete when the upper plate angle is determined to be finished;
s4, inserting splicing reinforcing steel bars into the reserved holes of the adjustable templates after pouring is completed;
s5, removing the form when the concrete of the retaining wall reaches the preset time length, maintaining the retaining wall, and repeating the step 2 until all the retaining wall construction is completed when the strength of the retaining wall reaches a first threshold value;
wherein in the step S3, when the retaining wall construction is carried out, the retaining wall slope is measured in the field, the angle range of the adjustable template upper plate angle theta is determined according to the angle R of the slope,
the construction design is provided with a first preset slope angle R1, a second preset slope angle R2, a third preset slope angle R3, a first preset angle range W1, a second preset angle range W2 and a third preset angle range W3, wherein R1 is more than R2 and less than R3, W1 is more than W2 and less than W3,
when R is less than or equal to R1, determining the angle range of the upper plate angle of the adjustable template as a first preset angle range W1;
when R1 is more than R and less than or equal to R2, determining the angle range of the upper plate angle of the adjustable template as a second preset angle range W2;
when R is more than R2, determining the angle range of the upper plate angle of the adjustable template as a third preset angle range W3;
in the step S3, when the determination of the upper plate angle is completed, determining the vibration duration t of the poured concrete according to the template interval H, selecting a corresponding vibration duration adjustment coefficient according to the comparison result of the adjusted upper plate angle θ' and the preset upper plate angle to adjust the vibration duration,
the construction design is also provided with a first preset upper plate angle theta 1, a second preset upper plate angle theta 2, a third preset upper plate angle theta 3, a first vibration duration adjusting coefficient X1, a second vibration duration adjusting coefficient X2 and a third vibration duration adjusting coefficient X3, wherein theta 1 is more than theta 2 and less than theta 3, X1 is more than X2 and less than X3 is more than 1 and less than 2,
when theta 1 is less than or equal to theta' and less than theta 2, a first vibration duration adjusting coefficient X1 is selected to adjust the vibration duration;
when theta 2 is less than or equal to theta' and less than theta 3, selecting a second vibration duration adjusting coefficient X2 to adjust the vibration duration;
when theta' is more than or equal to theta 3, selecting a third vibration duration adjustment coefficient X3 to adjust the vibration duration;
when the j-th vibration duration adjusting coefficient Xj is selected to adjust the vibration duration, j=1, 2 and 3 are set, the poured concrete is vibrated according to the adjusted vibration duration t ', and t' =t×Xj is set.
2. The irregularly shaped gravity type retaining wall construction process according to claim 1, wherein when it is determined that the angle range of the adjustable form upper plate angle is completed, construction is started with the intermediate value of the angle range Wi including the angle range minimum value Wmini and the angle range maximum value Wmaxi as the initial upper plate angle θ, i=1, 2,3 is set.
3. The construction process of the irregularly shaped gravity type retaining wall according to claim 2, wherein, when each step of construction of the retaining wall is performed, the slope wall distance S between the slope and the outer wall of the structure is actually measured, the slope wall distance S is compared with the slope wall distance S0 in the construction design, the upper plate angle is adjusted according to the comparison result, and if S > S0, the upper plate angle is determined to be adjusted; and if S is less than or equal to S0, judging that the upper plate angle is not adjusted.
4. The construction process of the irregularly shaped gravity retaining wall according to claim 3, wherein when the adjustment of the upper plate angle is determined, a difference DeltaS between the slope wall distance S and a slope wall distance S0 in the construction design is calculated, deltaS=S-S0 is set, and a corresponding angle adjustment coefficient is selected to adjust the upper plate angle according to a comparison result of the difference and a preset slope wall distance difference,
the construction design is also provided with a first preset slope wall distance difference delta S1, a second preset slope wall distance difference delta S2, a third preset slope wall distance difference delta S3, a first angle adjustment coefficient K1, a second angle adjustment coefficient K2 and a third angle adjustment coefficient K3, wherein delta S1 < [ delta ] S2 < [ delta ] S3, K1 < K2 < K3,
when DeltaS 1 is less than or equal to DeltaS < DeltaS2, selecting a first angle adjusting coefficient K1 to adjust the angle of the upper plate;
when DeltaS 2 is less than or equal to DeltaS < DeltaS3, selecting a second angle adjusting coefficient K2 to adjust the angle of the upper plate;
when the delta S is more than or equal to delta S3, selecting a third angle adjusting coefficient K3 to adjust the upper plate angle;
when the ith angle adjustment coefficient Ki is selected to adjust the upper plate angle, i=1, 2,3 is set, the adjusted upper plate angle is set to θ ', and θ' =θ×ki is set.
5. The construction process of the irregularly shaped gravity type retaining wall according to claim 4, wherein when the retaining wall of the next step is poured, the upper plate angle of the adjustable formwork of the retaining wall of the next step or the adjusted upper plate angle is compared with the upper plate angle adjusted in the previous step, the upper plate angle difference delta theta of the adjacent two-step pouring is calculated, the corresponding vibration duration correction coefficient is selected according to the comparison result of the upper plate angle difference and the preset upper plate angle difference to correct the vibration duration,
wherein the construction design is also provided with a first preset upper plate angle difference delta theta 1, a second preset upper plate angle difference delta theta 2, a third preset upper plate angle difference delta theta 3, a first vibration duration correction coefficient U1, a second vibration duration correction coefficient U2 and a third vibration duration correction coefficient U3, wherein delta theta 1 is less than delta theta 2 and less than delta theta 3, U1 is less than U2 and less than U3 is less than 1.5,
when delta theta is smaller than delta theta 1, judging that the vibration duration is not corrected;
when delta theta 1 is less than or equal to delta theta and less than delta theta 2, a first vibration duration correction coefficient U1 is selected to correct the vibration duration;
when delta theta 2 is less than or equal to delta theta and less than delta theta 3, a second vibration duration correction coefficient U2 is selected to correct the vibration duration;
when delta theta is more than or equal to delta theta 3, a third vibration duration correction coefficient U3 is selected to correct the vibration duration;
when the nth vibration duration correction coefficient Un is selected to correct the vibration duration, n=1, 2,3 is set, the corrected vibration duration is set as t ', and t' = t×un or t '= t' ×un is set.
6. The construction process of the irregularly shaped gravity retaining wall according to claim 5, wherein when determining the vibration duration of the pouring of the retaining wall, determining the corresponding vibration duration according to the comparison result of the template interval H and the preset template interval,
the construction design is also provided with a first preset template interval H1, a second preset template interval H2, a third preset template interval H3, a first vibrating duration t1, a second vibrating duration t2 and a third vibrating duration t3, wherein H1 is more than H2 and less than H3, t1 is more than t2 and less than t3,
when H1 is less than or equal to H2, preliminarily setting the vibrating duration as a first vibrating duration t1;
when H2 is less than or equal to H3, the vibration time length is preliminarily set as a second vibration time length t2;
when H is more than or equal to H3, the vibrating duration is initially set to be the third vibrating duration t3.
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| JPH08277537A (en) * | 1995-04-06 | 1996-10-22 | Koji Itagaki | Assembling method for retaining wall-constructing form unit and its rise-preventing plate |
| JP2003027506A (en) * | 2001-07-12 | 2003-01-29 | Sankyo Concrete Kk | Construction method for concrete retaining wall and form panel used therein |
| CN104120736A (en) * | 2013-04-28 | 2014-10-29 | 杨哲 | Construction method of reinforced concrete retaining wall |
| CN107366303A (en) * | 2017-08-01 | 2017-11-21 | 江苏燕宁建设工程有限公司 | Construction method and retaining wall of the aluminum alloy mould plate as highway gravity retaining wall template |
| CN207189920U (en) * | 2017-09-14 | 2018-04-06 | 建华建材（江苏）有限公司 | A kind of prefabricated concrete retaining wall die device |
| CN110984216A (en) * | 2019-11-22 | 2020-04-10 | 上海市建工设计研究总院有限公司 | Horizontal T-shaped reinforced concrete retaining wall and construction method thereof |
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