TWI637095B - Construction method of collimating continuous wall - Google Patents

Abstract

A method for constructing a collimated continuous wall includes a soil excavation stage and a wall construction stage. The excavation stage utilizes an excavator to excavate a groove down the ground, the groove including a plurality of groove segments that are connected to each other. The earthmoving stage includes a digging step, a detecting step, a correcting step, a filling step and a removing step. In the detecting step, it is detected whether the main wall faces are perpendicular to the ground, and if not vertical, the correcting step is performed; in the correcting step, the main wall surface defining an acute angle with the ground is a concave main wall surface, and the other is a protruding main wall surface. At this time, a steel plate and the ground are disposed perpendicular to each other on the groove segment and adjacent to the concave main wall surface, and then the filling and digging step is performed to cause the excavator to excavate the protruding main wall surface along the longitudinal direction of the steel plate.

Description

Construction method of collimating continuous wall

The invention relates to a construction method, in particular to a construction method of collimating continuous walls.

In order to be able to cover higher and more stable, today's buildings must be buried deep underground. In order to dig out the depth sufficient to bury the beam and column, the open cut method and the vertical cut method are generally used; the open cut method is easy to construct, but it may damage the structural strength under the ground of nearby buildings, so in a densely populated city, Vertical digging must be used. In order to carry out the vertical digging method smoothly, a retaining device must be provided, and the most commonly used retaining facility today is the continuous wall. The continuous wall is like a wall formed in the ground, and the construction area to be excavated is circled. When the construction area is excavated, the soil and water layer on the outside will not collapse or infiltrate into the construction area.

There are three main steps in continuous wall construction: digging an annular space down, hanging steel cages, and pouring concrete slurry. As shown in Fig. 1, since one annular space 1 is excavated once, severe collapse occurs, so that the actual space is divided into a plurality of grooves 11 during construction.

Referring to Fig. 1, firstly, an excavator (not shown) is used to excavate a square groove 11 on the ground, and then the steel cage is suspended to the groove 11 and poured into the concrete slurry, which can be made after the concrete slurry is solidified. A collimating continuous wall of vertical ground perpendicular to each other.

Referring to Fig. 2, the above is the ideal state of construction. However, in actual excavation, the skewed groove 11 may be excavated for various reasons (in order to highlight the skew problem, the degree of skew is intentionally enhanced in Fig. 2, only To indicate that it does not represent the actual construction). The reasons that may cause the skew include: (1) The hardness of the soil layer is different. If some soil layers are too hard during excavation, the excavator will be guided to the softer soil layer to excavate the skewed groove. And as the depth of the excavation is deeper, the degree of skew is greater; (2) when the excavator has a poor correction, or the excavator itself has a certain angular tolerance, the skewed groove 11 is also excavated.

The skewed groove 11 will cause many problems in the subsequent lifting of the steel cage and pouring into the concrete slurry, for example: (1) the difficulty of affecting the working efficiency when the steel cage is subsequently lowered; (2) the subsequent multiple steel cages are connected to each other without Complete, resulting in fragile joints and easy to leak water; (3) The area occupied by the continuous wall is different from the expected. If the groove 11 is skewed to the inside, it will reduce the available area. If the groove 11 is If the lateral side is skewed, there will be problems in infringing on the land ownership of others; (4) The problem of mud filling will occur when the concrete slurry is subsequently poured.

Accordingly, it is an object of the present invention to provide a method of construction of a collimating continuous wall capable of imparting a collimating continuous wall.

Therefore, the construction method of the collimated continuous wall of the present invention sequentially includes an excavation stage and a wall construction stage. The excavation stage is to use an excavator to excavate a groove having a predetermined depth downward from the ground, the groove comprising a plurality of groove segments that are connected to each other; the wall construction stage is to hang a steel cage to the Groove and pour concrete slurry into the reinforcement cage.

The earthmoving stage includes a digging step, a detecting step, a correcting step, a replenishing step, and a removing step.

In the excavating step, the excavator is used to excavate a groove segment on the ground, the groove segment having two main wall faces parallel to each other and on opposite sides, and two mutually parallel and connected to the main wall faces Side wall surface.

In the detecting step, an ultrasonic detector is used to detect whether the main wall faces are perpendicular to the ground, and when the ultrasonic detector detects that the main wall faces are perpendicular to the ground, then detecting whether the groove reaches the predetermined depth, When the predetermined depth is reached, the wall-building phase is performed, and when the predetermined depth is not reached, the mining step is returned.

In the correcting step, when the ultrasonic detector detects that the main wall faces are not perpendicular to the ground, the main wall surface defining an acute angle with the ground is a concave main wall surface, and the other main wall surface with an obtuse angle to the ground is a protruding main wall surface. At this time, a steel plate and the ground are disposed perpendicular to each other on the groove segment and adjacent to the concave main wall surface, wherein one side of the steel plate faces the concave main wall surface and the other surface faces the protruding main wall surface.

At the time of the excavation step, the excavator excavates the protruding main wall surface along the longitudinal direction of the steel plate.

In the removing step, the steel plate is moved out of the groove segment, and it is detected whether the depth of the groove reaches the predetermined depth, and when the predetermined depth is reached, the wall forming stage is performed, when the predetermined depth is not reached. , then go back to the mining step.

The effect of the invention is to check whether the excavated groove segment is skewed by the detecting step, and if the skewing step, the correcting step, the filling and digging step and the removing step are sequentially performed, which can be perpendicular to the ground. The steel plate guides the excavator with the correct excavation of the collimated groove segments and the collimated grooves, and finally the wall construction phase to create a collimated continuous wall.

An embodiment of the method of constructing a collimating continuous wall of the present invention is referred to FIG. 3, and no further hints are provided later. The embodiment sequentially includes an earthmoving stage 2 and a wall building stage 3; referring to FIG. 4, the earthmoving stage 2 utilizes an excavator (not shown) to dig down a ground having a predetermined depth D. The trench 4, and the trench 4 includes a plurality of trench segments 41 that are joined to each other.

The earthmoving stage 2 includes a digging step 21, a detecting step 22, a correcting step 23, a replenishing step 24, and a removing step 25.

As shown in FIGS. 4-6, at the excavation step 21, a trench segment 41 is dug down by the excavator, and each of the excavated trench segments 41 has two main walls that are parallel to each other and are located on opposite sides. 411, and two side wall surfaces 412 that are parallel to each other and connected to the main wall surfaces 411. Thus, after a plurality of digging steps 21 are performed, a sufficient number of trench segments 41 and trenches 41 of sufficient depth can be excavated.

At the detection step 22, an ultrasonic detector is used to detect whether the main wall faces 411 are perpendicular to the ground. When the ultrasonic detector detects that the main wall surface 411 is not perpendicular to the ground, the correcting step 23 is performed; otherwise, whether the groove 4 reaches the predetermined depth D is detected. When the predetermined depth D is reached, the earthmoving phase 2 is ended and the wall forming phase 3 is performed. When the predetermined depth D is not reached, the mining step 21 is returned.

At the time of the correction step 23, the main wall surface 411 defining the acute angle a with the ground is the concave main wall surface 411a, and the other main wall surface 411 having the obtuse angle b with the ground is the protruding main wall surface 411b. As shown in FIGS. 7-8, at this time, a steel plate 5 is disposed on the groove segment 41 and adjacent to the concave main wall surface 411a, wherein one side of the steel plate 5 faces the concave main wall surface 411a, and the other surface faces the protruding main. Wall 411b. When the steel sheet 5 is placed, the steel sheet 5 is inserted into the groove 4 by means of gravity dropping, so that the steel sheet 5 is accurately perpendicular to the ground.

Referring to FIGS. 7 and 9, at the time of the replenishing step 24, the excavator excavates the protruding main wall surface 411b along the longitudinal direction of the steel plate 5. Therefore, the steel plate 5 guided by the steel material can smoothly excavate any soft and hard soil, even if the protruding main wall surface 411b is a clay or hard soil having a high hardness. In addition, when the excavator has an error due to improper correction, it can also be guided through the steel plate 5 perpendicular to the ground to accurately and vertically dig into the ground.

At the removing step 25, the steel plate 5 is moved out of the groove segment 41, and it is detected whether the depth of the groove 4 reaches the predetermined depth D, and when the predetermined depth D is reached, the earthmoving stage 2 is ended. The wall construction phase 3 is performed, and when the predetermined depth D is not reached, the digging step 21 is returned.

Thus, as shown in Fig. 10, through the earthmoving stage 2, the groove 4 having the predetermined depth D and collimating perpendicular to the ground can be finally excavated. As shown in FIG. 11, after the earth-moving stage 2 is completed, the wall-building stage 3 is then carried out, a steel cage 6 is suspended to the groove 4, and concrete slurry is poured into the steel cage 6. As mentioned above, since the groove 4 is collimated perpendicularly to the ground, it can be easily and efficiently performed when the steel cage 6 is suspended, and when a plurality of steel cages 6 are overlapped with each other, There will be no leakage caused by incomplete connection; and after pouring the concrete slurry, there will be no problem of mudding, and the construction area after the completion of the continuous wall is quite accurate, and there will be no problem of excessive or too small construction. Thus, through the construction method of the collimating continuous wall of the present invention, a collimating continuous wall can be made.

In summary, in the construction method of the collimating continuous wall of the present invention, the detecting step 22 checks whether the excavated groove section 41 is skewed, and if it is skewed, the correcting step 23 is performed sequentially, and the replenishing step 24 is performed. The removing step 25 is to guide the excavator tool to accurately excavate the collimated groove segment 41 and the collimated groove 4 by the steel plate 5 perpendicular to the ground, and finally perform the wall-building phase 3 to do A collimated continuous wall is provided, so that the object of the invention can be achieved.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

1‧‧‧ring space

11‧‧‧ trench

111‧‧‧Groove section

2‧‧ ‧ earthmoving stage

21‧‧‧Excavation steps

22‧‧‧Test steps

23‧‧‧Revising steps

24‧‧‧Removement steps

25‧‧‧Remove steps

3‧‧‧Building stage

4‧‧‧ trench

41‧‧‧Groove section

411‧‧‧Main wall

411a‧‧‧ recessed main wall

411b‧‧‧ prominent main wall

412‧‧‧ side wall

5‧‧‧ steel plate

6‧‧‧Steel cage

A‧‧‧ acute angle

B‧‧‧oblate angle

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is a plan view showing an annular space comprising a plurality of grooves; Figure 2 is a side of a groove Figure 3 is a flow chart illustrating an embodiment of a method of constructing a collimating continuous wall of the present invention; Figure 4 is a schematic view showing a groove including a plurality of groove segments; Figure 5 is a side cross-sectional view showing a Figure 6 is a plan view, which is a further perspective view of Figure 5; Figure 7 is a side cross-sectional view showing the situation after a modification step of the embodiment is completed; Figure 8 is a top view, an auxiliary view Figure 7 is a side cross-sectional view showing a replenishing step and a removal step of the embodiment. Figure 10 is a side cross-sectional view showing the completion of an excavation phase of the embodiment. And FIG. 11 is a side cross-sectional view illustrating the situation after completion of a wall-building phase of the embodiment.

Claims (2)

A method for collimating continuous wall, comprising: an earthmoving stage and a wall building stage, wherein the earthmoving stage uses an excavator to excavate a groove having a predetermined depth downward from the ground, the groove The method includes a plurality of groove segments that are connected to each other, and the wall forming stage is to hang a steel cage to the groove, and pour concrete slurry into the steel cage, the earthmoving stage includes an excavating step, and the excavator is used Digging a groove section on the ground surface, the groove section has two main wall faces which are parallel to each other and on opposite sides, and two side wall faces which are parallel to each other and are connected to the main wall faces; a detecting step using an ultra The sound wave detector detects whether the main wall faces are perpendicular to the ground, and when the ultrasonic detector detects that the main wall faces are perpendicular to the ground, then detects whether the groove reaches the predetermined depth, and when the predetermined depth is reached, proceeds In the wall-building phase, when the predetermined depth is not reached, the step is returned to the excavation step; a correction step is performed when the ultrasonic detector detects that the main wall surface is not drooping On the ground, the main wall surface defining the acute angle with the ground is the concave main wall surface, and the other main wall surface with the obtuse angle of the ground is the protruding main wall surface. At this time, a steel plate and the ground are disposed perpendicular to each other in the groove segment, and close to a main wall surface of the recess, wherein one side of the steel plate faces the main wall surface of the recess, and the other side faces the protruding main wall surface; a repairing and digging step, the excavator excavates the protruding main wall surface along the length direction of the steel plate; and a removal Step, moving the steel plate out of the groove segment, and detecting whether the depth of the groove reaches the predetermined depth, and when the predetermined depth is reached, performing the wall-building phase, and when the predetermined depth is not reached, returning to the Mining steps. The method of constructing a collimating continuous wall according to claim 1, wherein in the correcting step, the steel plate is allowed to be perpendicular to the ground by gravity dropping.