CN111042100B - Method for assembling prefabricated underground continuous wall - Google Patents
Method for assembling prefabricated underground continuous wall Download PDFInfo
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- CN111042100B CN111042100B CN201911399992.9A CN201911399992A CN111042100B CN 111042100 B CN111042100 B CN 111042100B CN 201911399992 A CN201911399992 A CN 201911399992A CN 111042100 B CN111042100 B CN 111042100B
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Abstract
The invention relates to the field of underground continuous wall construction, in particular to an assembly method of a prefabricated underground continuous wall, which is provided with a first underground continuous wall component in a regular trapezoid shape and a second underground continuous wall component in an inverted trapezoid shape, wherein the verticality of the first underground continuous wall component and the second underground continuous wall component in a groove is adjusted through a positioning mechanism, the first underground continuous wall component and the second underground continuous wall component are connected, the pouring quality of the prefabricated first underground continuous wall component and the prefabricated second underground continuous wall component can be ensured, the construction efficiency of a site can be improved, and the connection tightness of the connection position of the first underground continuous wall component and the second underground continuous wall component which are arranged alternately can be improved.
Description
Technical Field
The invention relates to the field of underground continuous wall construction, in particular to an assembly method of a prefabricated underground continuous wall.
Background
The existing underground continuous wall is generally constructed in a cast-in-place mode, namely, grooving operation is firstly carried out on the ground through a grooving machine, then a reinforcement cage which is bound in advance is hoisted into a groove, concrete grout is injected into the groove, and after the concrete is solidified, the concrete is tightly combined with the reinforcement cage to form the underground continuous wall. However, in-situ casting is difficult to ensure the proportion of concrete, the casting site environment is not controllable, and foreign matters are easy to invade into unset concrete, so that the underground continuous wall cannot reach the design index, and potential safety hazards are left for later construction.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide an assembly method of a prefabricated underground diaphragm wall, so as to solve the problem that the pouring quality of the existing cast-in-place underground diaphragm wall is not controllable.
Based on the above, the invention provides an assembly method of a prefabricated underground continuous wall, which comprises the following steps:
s1, constructing a first groove on the ground, and arranging a positioning mechanism at an opening of the first groove;
step S2, hoisting a first underground continuous wall component into the first groove, adjusting the posture of the first underground continuous wall component by the positioning mechanism, and fixing the first underground continuous wall component in the first groove to form a first wall section;
step S3, repeating the steps S1 to S2, wherein a to-be-constructed area is arranged between the first groove constructed in the step S3 and the first wall section formed in advance;
step S4, constructing a second groove in the area to be constructed, wherein two sides of the second groove are respectively communicated with the first grooves on two sides of the area to be constructed, and a positioning mechanism is arranged at an opening of the second groove;
step S5, hoisting a second underground continuous wall component into the second groove, adjusting the posture of the second underground continuous wall component by the positioning mechanism, and fixing the second underground continuous wall component on the first underground continuous wall components at two sides of the second underground continuous wall component to form a second wall section;
and S6, repeating the steps S3 to S5, and enabling the plurality of first wall segments and the plurality of second wall segments to be arranged alternately.
Preferably, the first underground continuous wall assembly is of a regular trapezoid structure, and the second underground continuous wall assembly is of an inverted trapezoid structure.
Preferably, the step of hoisting the first underground diaphragm wall assembly into the first groove further comprises:
the method comprises the steps of hoisting a first sub-wall into a first groove, adjusting the verticality of the first sub-wall by adopting a positioning mechanism, hoisting a second sub-wall to the upper side of the first sub-wall, driving the bottom end of the second sub-wall to be aligned to the top end of the first sub-wall and splicing the bottom end of the second sub-wall and the top end of the first sub-wall, and splicing the first sub-wall and the second sub-wall to form the first underground continuous wall assembly.
Preferably, the step of hoisting the second underground continuous wall assembly into the second groove further comprises:
and hoisting a third sub-wall into the second groove, adjusting the verticality of the third sub-wall by adopting the positioning mechanism, hoisting a fourth sub-wall to the upper part of the third sub-wall, driving the bottom end of the fourth sub-wall to be aligned to the top end of the third sub-wall and spliced with each other by adopting the positioning mechanism, and splicing the third sub-wall and the fourth sub-wall to form the second underground continuous wall component.
Preferably, the step of fixing the first underground continuous wall assembly to the first groove to form the first wall segment further comprises:
grouting the embedded section of the first underground continuous wall assembly.
Preferably, the step of fixing the second underground diaphragm wall assembly to the first underground diaphragm wall assembly at both sides thereof to form the second wall segment further comprises:
grouting between the bottom end of the second groove and the bottom end of the second underground continuous wall assembly.
Preferably, the step of hoisting the second underground continuous wall assembly into the second groove further comprises:
will the hoist of second underground continuous wall subassembly extremely during the predetermined degree of depth in the second recess, adopt the flushing pipe of second underground continuous wall subassembly both sides is right the second underground continuous wall subassembly both sides first underground continuous wall subassembly washes, will again the second underground continuous wall subassembly hoist and mount to design elevation.
Preferably, the step of fixing the second underground diaphragm wall assembly to the first underground diaphragm wall assembly at both sides thereof to form the second wall segment further comprises:
and driving the locking joint of the first underground continuous wall assembly to be embedded into the locking slot of the second underground continuous wall assembly.
Preferably, the step of splicing the first sub-wall and the second sub-wall to form the first underground continuous wall assembly further comprises:
the plug connector of the second sub-wall is embedded into the insertion groove of the first sub-wall, and the lock pin of the first sub-wall penetrates through the lock hole of the plug connector.
Preferably, the step of splicing the third sub-wall and the fourth sub-wall to form the second underground continuous wall assembly further comprises:
the plug connector of the fourth sub-wall is embedded into the insertion groove of the third sub-wall, and the lock pin of the third sub-wall penetrates through the lock hole of the plug connector.
The invention relates to an assembly method of a prefabricated underground continuous wall, which is provided with a first underground continuous wall component in a regular trapezoid shape and a second underground continuous wall component in an inverted trapezoid shape, wherein the verticality of the first underground continuous wall component and the verticality of the second underground continuous wall component in a groove are adjusted through a positioning mechanism, the first underground continuous wall component and the second underground continuous wall component are connected, the pouring quality of the prefabricated first underground continuous wall component and the prefabricated second underground continuous wall component can be ensured, the construction efficiency of a site can be improved, and the connection tightness of the connection part of the first underground continuous wall component and the second underground continuous wall component which are arranged alternately can be improved.
Drawings
FIG. 1 is a first groove grooving diagram illustrating a method of assembling a prefabricated underground diaphragm wall according to an embodiment of the present invention;
FIG. 2 is a schematic view illustrating the hoisting of a first sub-wall in the method for assembling the prefabricated underground diaphragm wall according to the embodiment of the present invention;
fig. 3 is a schematic view illustrating splicing of a first sub-wall and a second sub-wall in the method for assembling the prefabricated underground diaphragm wall according to the embodiment of the present invention;
FIG. 4 is a schematic view of a completed first wall segment of the method of assembling a prefabricated underground diaphragm wall according to an embodiment of the present invention;
FIG. 5 is a schematic view of the completion of two first wall segments of the method for assembling the prefabricated underground diaphragm wall according to the embodiment of the present invention;
FIG. 6 is a second groove-grooving diagram illustrating an assembly method of a prefabricated underground diaphragm wall according to an embodiment of the present invention;
FIG. 7 is a schematic view illustrating the hoisting of a third sub-wall in the method for assembling the prefabricated underground diaphragm wall according to the embodiment of the present invention;
fig. 8 is a schematic view illustrating splicing of a third sub-wall and a fourth sub-wall in the method for assembling the prefabricated underground diaphragm wall according to the embodiment of the present invention;
fig. 9 is a schematic view of hoisting a second prefabricated underground continuous wall according to the method for assembling the prefabricated underground continuous wall according to the embodiment of the present invention;
FIG. 10 is a schematic view of a completed second wall segment of the method of assembling the prefabricated underground diaphragm wall according to the embodiment of the present invention;
FIG. 11 is a schematic structural view of a vertical attachment lock of an embodiment of the present invention;
FIG. 12 is a schematic structural view of a transverse attachment lock of an embodiment of the present invention;
FIG. 13 is a schematic view of a rack and pinion mechanism of an embodiment of the present invention;
FIG. 14 is a schematic view of the construction of a release preventing member according to an embodiment of the present invention;
FIG. 15 is a schematic representation of the structure of a piston cylinder of an embodiment of the present invention;
FIG. 16 is a schematic view showing a verticality measurement method of a prefabricated underground diaphragm wall according to an embodiment of the present invention;
FIG. 17 is one of the schematic structural views of a positioning mechanism of an embodiment of the present invention;
FIG. 18 is a second schematic structural view of a positioning mechanism according to an embodiment of the present invention;
wherein, 1, a first groove; 2. a positioning mechanism; 21. a base; 22. a leveling device; 23. a first positioning member; 24. a second positioning member; 25. an accommodating hole; 3. a first underground diaphragm wall assembly; 31. a first wall segment; 32. a first sub-wall; 33. a second sub-wall; 34. automatically leveling the laser transmitter; 35. automatically leveling the light spot receiver; 4. a region to be constructed; 41. a second groove; 5. a second underground diaphragm wall assembly; 51. a second wall segment; 52. a third sub-wall; 53. a fourth sub-wall; 6. a vertical connecting lock; 61. a lock body; 611. inserting grooves; 612. a lock pin; 613. a guide hole; 614. a first elastic member; 615. a locking member; 62. a plug-in unit; 621. a lock hole; 7. a transverse connecting lock; 71. an active plugging component; 711. locking the joint; 7111. a step surface; 712. a second driving device; 7121. a first gear; 7122. a first rack; 7123. a second gear; 7124. a second rack; 7125. a piston cylinder; 72. a passive plug-in assembly; 721. locking the slot; 722. a drop-off prevention member; 7221. a guide slope; 723. a second elastic member; 8. and (5) measuring an inclined hole.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1 to 18, schematically illustrating an assembly method of a prefabricated underground continuous wall according to the present invention, in which a first underground continuous wall module 3 has a regular trapezoidal structure and a second underground continuous wall module 5 has an inverted trapezoidal structure, as shown in fig. 1 to 10, the assembly method includes the steps of:
and step S1, constructing a first groove 1 on the ground by using a grooving machine, and arranging a positioning mechanism 2 at the opening of the first groove 1.
Step S2, hoisting the first underground continuous wall assembly 3 into the first groove 1, specifically: the first sub-wall 32 is hoisted into the first groove 1, the positioning mechanism 2 is adopted to adjust the posture of the first sub-wall 32, the second sub-wall 33 is hoisted above the first sub-wall 32, the positioning mechanism 2 drives the bottom end of the second sub-wall 33 to align with the top end of the first sub-wall 32, the second sub-wall 33 is suspended to move downwards, the plug connector 62 of the second sub-wall 33 is embedded into the insertion groove 611 of the first sub-wall 32, the lock pin 612 of the first sub-wall 32 is arranged in the lock hole 621 of the plug connector 62 in a penetrating manner, and the combination of the lock pin 612 and the lock hole 621 can prevent the plug connector 62 from being separated from the insertion groove 611, so that the first sub-wall 32 and the second sub-wall 33 can be quickly connected, and the risk caused by hoisting of heavy objects is reduced; the first sub-wall 32 and the second sub-wall 33 are spliced to form the first underground continuous wall assembly 3, and the second sub-wall 33 and the first sub-wall 32 are sequentially arranged from top to bottom;
the positioning mechanism 2 adjusts the attitude of the first underground diaphragm wall assembly 3, and then fixes the first underground diaphragm wall assembly 3 to the first groove 1 to form the first wall segment 31, specifically: grouting is performed at the embedded section of the first underground diaphragm wall assembly 3, and at the same time, grouting is performed between the first sub-wall 32 and the second sub-wall 33 to stabilize the first underground diaphragm wall assembly 3.
And S3, repeating the steps S1 to S2, wherein a to-be-constructed area 4 is arranged between the first groove 1 constructed in the step S3 and the last first wall section 31.
Step S4, constructing a second groove 41 in the area 4 to be constructed by adopting a trenching machine, wherein two sides of the second groove 41 are respectively communicated with the first grooves 1 on two sides of the area 4 to be constructed, and a positioning mechanism 2 is arranged at an opening of the second groove 41.
Step S5, hoisting the second underground continuous wall assembly 5 into the second groove 41, specifically: the third sub-wall 52 is hoisted into the second groove 41, the positioning mechanism 2 is adopted to adjust the verticality of the third sub-wall 52, the fourth sub-wall 53 is hoisted above the third sub-wall 52, the positioning mechanism 2 drives the bottom end of the fourth sub-wall 53 to align with the top end of the third sub-wall 52, the fourth sub-wall 53 is suspended to move downwards, the plug connector 62 of the fourth sub-wall 53 is embedded into the insertion groove 611 of the third sub-wall 52, the lock pin 612 of the third sub-wall 52 is arranged in the lock hole 621 of the plug connector 62 in a penetrating manner, and the combination of the lock pin 612 and the lock hole 621 can prevent the plug connector 62 from being separated from the insertion groove 611, so that the third sub-wall 52 and the fourth sub-wall 53 can be quickly connected, and the risk caused by hoisting of heavy objects is reduced; the third sub-wall 52 and the fourth sub-wall 53 are spliced to form a second underground continuous wall assembly 5, and the fourth sub-wall 53 and the third sub-wall 52 are sequentially arranged from top to bottom;
further, when the second underground continuous wall component 5 is hoisted to the preset depth in the second groove 41, the flushing pipes on the two sides of the second underground continuous wall component 5 are adopted to flush the first underground continuous wall components 3 on the two sides of the second underground continuous wall component 5, and then the second underground continuous wall component 5 is hoisted to the designed elevation.
The positioning mechanism 2 adjusts the attitude of the second underground diaphragm wall assembly, and then fixes the second underground diaphragm wall assembly 5 to the first underground diaphragm wall assembly 3 on both sides thereof to form the second wall segment 51, specifically: the locking connector 711 of the first underground continuous wall component 3 is driven to be embedded into the locking slot 721 of the second underground continuous wall component 5, the anti-release piece 722 in the locking slot 721 abuts against the locking connector 711 to prevent the locking connector 711 from being separated from the locking slot 721, and the locking connector 711 and the locking slot 721 can also effectively improve the tensile property of the connecting part between the first underground continuous wall component 3 and the second underground continuous wall component 5; further, grouting is performed between the bottom end of the second groove 41 and the bottom end of the second underground diaphragm wall assembly 5, and simultaneously, grouting is performed between the third sub-wall 52 and the fourth sub-wall 53 to stabilize the second underground diaphragm wall assembly 5.
And S6, repeating the steps S3 to S5, and alternately arranging the plurality of first wall segments 31 and the plurality of second wall segments 51.
Be trapezoidal first underground continuous wall group and be trapezoidal second underground continuous wall subassembly 5 of falling and can realize more inseparable connection after the concatenation, specifically do: the second underground continuous wall group that is the down-trapezoid has the trend of downstream under the effect of gravity, and because the connection face of first underground continuous wall group and second underground continuous wall group sets up with the horizontal plane slope for the side of second underground continuous wall group extrudees the side of first underground continuous wall group.
The postures of the prefabricated underground continuous wall or the prefabricated underground continuous wall group include, but are not limited to, the top height, the verticality, the deflection angle (with a vertically arranged axis as a rotating shaft) and the wall center coordinate of the underground continuous wall, and the postures can be measured by adopting the prior art.
As shown in fig. 17 and 18, the positioning mechanism 2 includes a base 21, and a plurality of positioning assemblies and a plurality of leveling devices 22 on the base 21.
The positioning assembly comprises a first positioning part 23 and a second positioning part 24 which are sequentially arranged from top to bottom, the first positioning part 23 and the second positioning part 24 are slidably connected to the base 21, the sliding directions of the first positioning part 23 and the second positioning part 24 of each positioning assembly are parallel, the second positioning part 24 is slidably connected to the top surface of the base 21, and the first positioning part 23 is slidably connected to the second positioning part 24. The first positioning member 23 abuts against the sidewall of the upper sub-wall, and the second positioning member 24 abuts against the sidewall of the lower sub-wall. The first positioning member 23 and the second positioning member 24 are respectively slid with respect to the base 21 so that the bottom end of the upper sub-wall and the top end of the lower sub-wall are aligned to facilitate the vertical splicing of the two sub-walls.
The leveling device 22 is movably connected to the base 21, and a movable end of the leveling device 22 is movable in a vertical direction toward or away from the base plate, and a plurality of leveling devices 22 are used to level the base 21 so that the base 21 is kept horizontally disposed. The leveling device 22 may be an existing hydraulic cylinder, the hydraulic cylinder is fixedly connected to the base 21, a piston rod of the hydraulic cylinder is provided with a supporting leg, the supporting leg can be supported on the ground, and the piston rod moves in the hydraulic cylinder in a telescopic manner to adjust the levelness of the base 21.
Specifically, the base 21 is provided with an accommodating hole 25 penetrating through the top surface and the bottom surface of the base, the accommodating hole 25 is rectangular, the positioning components are located at the side of the accommodating hole 25, and the first positioning component 23 and the second positioning component 24 both face the accommodating hole 25, in this embodiment, in order to push the prefabricated underground continuous wall (or sub-wall) in multiple directions on the horizontal plane, the positioning components are located around the accommodating hole 25, and the first positioning component 23 and the second positioning component 24 can push the prefabricated underground continuous wall (or sub-wall), so that the prefabricated underground continuous wall (or sub-wall) can move in the X direction and the Y direction on the horizontal plane, and further the posture of the prefabricated underground continuous wall (or sub-wall) is adjusted.
Referring to fig. 16, the perpendicularity of the prefabricated underground diaphragm wall (or the prefabricated underground diaphragm wall assembly) can be measured using the automatic leveling laser transmitter 34 and the automatic leveling spot receiver 35 before the perpendicularity of the assembly is adjusted using the positioning mechanism 2. The method specifically comprises the following steps:
the top surface of the prefabricated underground continuous wall is provided with the inclination measuring holes 8, the inclination measuring holes 8 are arranged along the direction from the top end to the bottom end of the prefabricated underground continuous wall, namely when the prefabricated underground continuous wall is vertically arranged, the inclination measuring holes 8 are also required to be vertically arranged, and vice versa.
The automatic leveling laser transmitter 34 is arranged at the hole of the inclination measuring hole 8 and transmits laser to the bottom end of the inclination measuring hole 8, and it should be noted that the automatic leveling laser transmitter 34 can automatically level in real time to ensure that the laser beam transmitted by the automatic leveling laser transmitter is always vertically arranged. The automatic leveling light spot receiver 35 is disposed at the bottom end of the inclinometer hole 8, and a CCD camera (Charge-coupled Device) of the automatic leveling light spot receiver 35 is a photosensitive element for receiving the light spots reflected by the laser light on the CCD camera. Of course, the auto-leveling laser transmitter 34 can also measure its distance from the CCD camera of the auto-leveling spot receiver 35 and is noted as L. Note that the two-dimensional coordinates of the light spot on the automatic leveling light spot receiver 35 are S (x, y).
The three-dimensional absolute coordinates P (X, Y, H) of the self-leveling laser transmitter 34 are measured by the prior art, and the displacement of the point P on the horizontal plane is changed to Δ P (Δ Xp, Δ Yp).
When the prefabricated underground continuous wall is inclined (the verticality is changed), the displacement change coordinate of the light spot on the CCD camera is (delta Xs, delta Ys), and then: the displacement of the light spot on the CCD camera is delta S ═ Sqrt (delta Xs × delta Xs plus delta Ys × delta Ys); the absolute coordinate of the point S is Sx ═ X +. DELTA.Xp-DELTA.Xs, and Sy ═ Y +. DELTA.Yp-DELTA.Ys; the inclination angle of the prefabricated underground continuous wall is Tan alpha ═ delta S/L. So that the inclination angle, the inclination direction and the inclination amount in a specific direction of the prefabricated underground continuous wall can be known.
In order to realize automatic measurement and adjust the verticality of the prefabricated underground continuous wall component, the conventional industrial personal computer, a single chip microcomputer, a Programmable Logic Controller (PLC) and other control equipment can be connected to the verticality detection device (comprising the automatic leveling laser transmitter 34 and the automatic leveling light spot receiver 35) and connected to the positioning mechanism 2, the verticality detection device firstly measures the verticality of the prefabricated underground continuous wall, then the control equipment analyzes data, and finally the positioning mechanism 2 adjusts the verticality of the prefabricated underground continuous wall, so that the full-automatic positioning of the actions of measurement, analysis and mechanical equipment is realized, manual intervention is not needed, and the verticality adjustment efficiency of the prefabricated underground continuous wall is improved.
Referring to fig. 11, in order to quickly connect two sub-walls (e.g., the first sub-wall 32 and the second sub-wall 33, or the third sub-wall 52 and the fourth sub-wall 53, which will be described below using the first sub-wall 32 and the second sub-wall 33), the two sub-walls can be connected by a vertical connecting lock 6, the vertical connecting lock 6 includes a lock body 61 and a plug member 62, and the plug member 62 is provided with a lock hole 621. In the present embodiment, the lock body 61 is disposed on the top surface of the first sub-wall 32, and the plug member 62 is disposed on the bottom surface of the second sub-wall 33.
The lock body 61 is provided with an insertion groove 611, the lock body 61 is provided with a first driving device and a lock pin 612 which is perpendicular to the insertion groove 611, the inner side wall of the insertion groove 611 is provided with a guide hole 613, the lock pin 612 can slide relative to the guide hole 613 along the axial direction of the guide hole 613, the lock pin 612 has a storage state and a locking state, when the lock pin 612 is in the storage state, the lock pin 612 is stored in the guide hole 613, and at the moment, the lock pin 612 does not penetrate into the insertion groove 611; when the lock pin 612 is in the locked state, the lock pin 612 protrudes through the guide hole 613 and penetrates into the insertion groove 611. The first driving device includes a first elastic member 614, a connecting plate and a locking member 615 located at the bottom end of the insertion groove 611, two ends of the first elastic member 614 are respectively connected to the lock body 61 and the lock pin 612, two ends of the first elastic member 614 are respectively connected to the lock pin 612 and the lock body 61, and the elastic force of the first elastic member 614 always drives the lock pin 612 to extend out of the guide hole 613 and penetrate into the insertion groove 611, i.e. the lock pin 612 can be automatically switched from the storage state to the locking state under the driving of the first elastic member 614. The connecting plate is fixedly connected with the locking pin 612, the locking piece 615 is movably connected with the lock body 61, and the locking piece 615 blocks the locking pin 612 so that the tail end of the locking pin 612 exits the insertion groove 611; the plug member 62 is inserted into the insertion groove 611 and pushes the locking member 615 to release the locking pin 612, so that the locking pin 612 is inserted into the locking hole 621.
Vertical connecting lock 6 is used for connecting two adjacent sub-walls from top to bottom, specifically: the second sub-wall 33 is located above the first sub-wall 32, the second sub-wall 33 gradually moves downwards to be close to the first sub-wall 32, the plug connector 62 is inserted into the insertion groove 611, the tail end of the plug connector 62 pushes the locking piece 615, the locking piece 615 is allowed to be located in the locking pin 612, the locking pin 612 extends into the insertion groove 611 and penetrates through the locking hole 621 under the elastic force of the first elastic piece 614, the combination of the locking pin 612 and the locking hole 621 can prevent the plug connector 62 from being separated from the insertion groove 611, the fixed connection between the upper first wall and the lower first wall is ensured, and the locking pin 612 is driven by the elastic force of the first elastic piece 614, so that the automatic locking mechanism does not need manual intervention, the automatic locking can be realized only by inserting the plug connector 62 into the insertion groove 611, the splicing efficiency of the two vertically adjacent sub-walls is greatly improved, and the working hours for splicing the prefabricated underground continuous wall are reduced.
As shown in fig. 12 to 16, in order to quickly connect two underground diaphragm wall modules (e.g., a first underground diaphragm wall module 3 and a second underground diaphragm wall module 5) horizontally adjacently disposed, the first underground diaphragm wall module 3 and the second underground diaphragm wall module 5 may be connected by a cross connecting lock 7, and the cross connecting lock 7 includes an active plug module 71 and a passive plug module 72. In this embodiment, the active plug assembly 71 is disposed on the first underground continuous wall assembly 3, and the passive plug assembly 72 is disposed on the second underground continuous wall assembly 5.
The active plug assembly 71 includes a second driving device 712 and a locking connector 711, wherein the locking connector 711 is connected to a movable end of the second driving device 712; the passive plug assembly 72 includes a locking slot 721 and an anti-separation component disposed in the locking slot 721, the anti-separation component includes an anti-separation component 722 movably connected to the locking slot 721; the escape prevention member 722 abuts against the locking connector 711 after the locking connector 711 is inserted into the locking insertion groove 721. After the first underground continuous wall component 3 and the second underground continuous wall component 5 are horizontally arranged adjacently, the locking connector 711 moves towards the locking slot 721 under the driving of the second driving device 712, when the free end of the locking connector 711 extends into the locking slot 721, the anti-release part 722 abuts against the free end of the locking connector 711 to prevent the locking connector 711 from being separated from the locking slot 721 and ensure the connection stability of the locking mechanism, the locking connector 711 and the locking slot 721 can be preferably made of metal materials to improve the tensile property of the locking mechanism and ensure that the joint of the first underground continuous wall component 3 and the second underground continuous wall component 5 reaches the design index.
Specifically, the locking tab 711 has a stepped surface 7111 thereon, and the stepped surface 7111 faces away from the locking slot 721. The anti-slip component further comprises a second elastic member 723, two ends of the second elastic member 723 are respectively connected to the anti-slip member 722 and the locking slot 721, the anti-slip member 722 is provided with a guide inclined surface 7221, the inner side walls of the guide inclined surface 7221 and the locking slot 721 are obliquely arranged, when the locking connector 711 extends into the locking slot 721, the anti-slip member 722 is positioned on the side edge of the movement track of the locking connector 711, the locking connector 711 abuts against the guide inclined surface 7221 and slides relative to the guide inclined surface 7221, the locking connector 711 pushes the anti-slip member 722 to move towards the direction far away from the locking connector 711 along the normal direction of the movement track of the locking connector 711, after the locking connector 711 extends into the locking slot 721 to the designed depth, the locking connector 711 is separated from the guide inclined surface 7221, at this time, the anti-slip member 722 moves towards the direction close to the locking connector 711 along the normal direction under the action of the elastic force of the second elastic member 723, the anti-slip member 722 abuts against the step surface 7111 of the locking connector 711, the locking tab 711 is prevented from being removed from the locking slot 721.
In some optional embodiments, the second driving device 712 includes a first gear 7121 and a first rack 7122 engaged with each other, and a second gear 7123 and a second rack 7124 engaged with each other, the first gear 7121 is rotatably connected to the first underground diaphragm wall assembly 3, one end of the first rack 7122 is connected to the locking joint 711, the second gear 7123 is coaxially disposed with and connected to the first gear 7121, a vertically disposed receiving slot is disposed in the first underground diaphragm wall assembly 3, the second rack 7124 is disposed in the receiving slot and slidably connected to the first wall, one end of the second rack 7124 is exposed to the opening of the receiving slot, when the second rack 7124 is pushed by a force, the second rack 7124 drives the second gear 7123 and the first gear 7121 to rotate, and further drives the first rack 7122 to move, so as to drive the locking joint 711 to slide on the guide rail. This enables the constructor to operate the second rack 7124 on the ground to lock the first and second underground diaphragm wall assemblies 3 and 5 in the horizontal direction.
In some alternative embodiments, the second driving device 712 includes a piston cylinder 7125 and a piston movably disposed in the piston cylinder 7125, the piston is connected to the locking joint 711, a first pipeline and a second pipeline are embedded in the first underground diaphragm wall assembly 3, the first pipeline is communicated with an inlet of the piston cylinder 7125, the second pipeline is communicated with an outlet of the piston cylinder 7125, and in order to ensure that the second driving device 712 has enough thrust to push the locking joint 711, the piston cylinder 7125 is preferably a hydraulic cylinder, namely the piston cylinder 7125 is filled with hydraulic oil. The first pipeline and the second pipeline can be connected by adopting the existing hydraulic pump and other devices, hydraulic oil is conveyed into the piston cylinder 7125 through the first pipeline and the second pipeline, and the piston is controlled to move in the piston cylinder 7125. Again, this enables the operator to remotely control the pistons on the ground to lock the first and second sub-floor diaphragm wall assemblies 3, 5 in a horizontal orientation.
Further, the both sides of transverse connection lock 7 all are equipped with sealing member and flushing pipe, a plurality of through-holes have been seted up on the pipe wall of flushing pipe, sealing member and flushing pipe all arrange along top to bottom direction of underground continuous wall subassembly, and the flushing pipe is located between transverse connection lock 7 and the sealing member, before first underground continuous wall subassembly 3 and second underground continuous wall subassembly 5 splice through transverse connection lock 7, to the interior input high pressure water of flushing pipe, the through-hole of flushing pipe is towards the concatenation terminal surface water spray of another underground continuous wall subassembly, in order to wash away the silt on the concatenation terminal surface. Of course, the through holes of the flushing pipe can spray water towards the sealing element and the transverse connecting lock 7 of another underground continuous wall assembly, residual silt can be washed away, meanwhile, the through holes of the flushing pipe can spray water towards the sealing element of the underground continuous wall assembly, and flushing dead angles between the sealing element and the splicing end face are avoided. After the first underground continuous wall assembly 3 and the second underground continuous wall assembly 5 are horizontally spliced, the sealing parts of the two underground continuous wall assemblies are mutually pressed for preventing muddy water or sand from the outside from eroding the transverse connecting lock 7 and the flushing pipe.
In summary, the assembly method of the prefabricated underground continuous wall of the invention comprises the steps of providing the first underground continuous wall component 3 in a regular trapezoid shape and the second underground continuous wall component 5 in an inverted trapezoid shape, adjusting the verticality of the first underground continuous wall component 3 and the second underground continuous wall component 5 in the groove through the positioning mechanism 2, connecting and setting the first underground continuous wall component 3 and the second underground continuous wall component 5, wherein the pouring quality of the prefabricated first underground continuous wall component 3 and the second underground continuous wall component 5 can be ensured, the construction efficiency of the site can be improved, and the connection tightness of the connection part of the first underground continuous wall component 3 and the second underground continuous wall component 5 which are alternately arranged can also be improved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. An assembly method of a prefabricated underground diaphragm wall is characterized by comprising the following steps:
s1, constructing a first groove on the ground, and arranging a positioning mechanism at an opening of the first groove;
step S2, hoisting a first underground continuous wall component into the first groove, wherein the first underground continuous wall component comprises a first sub-wall and a second sub-wall, the second sub-wall and the first sub-wall are sequentially arranged from top to bottom, the positioning mechanism adjusts the posture of the first underground continuous wall component, and then the first underground continuous wall component is fixed in the first groove to form a first wall section; the first underground continuous wall assembly is of a regular trapezoid structure;
step S3, repeating the steps S1 to S2, wherein a to-be-constructed area is arranged between the first groove constructed in the step S3 and the first wall section formed in advance;
step S4, constructing a second groove in the area to be constructed, wherein two sides of the second groove are respectively communicated with the first grooves on two sides of the area to be constructed, and a positioning mechanism is arranged at an opening of the second groove;
step S5, hoisting a second underground continuous wall component into the second groove, wherein the second underground continuous wall component comprises a third sub-wall and a fourth sub-wall, the fourth sub-wall and the third sub-wall are sequentially arranged from top to bottom, the positioning mechanism adjusts the posture of the second underground continuous wall component, and then the second underground continuous wall component is fixed on the first underground continuous wall components on the two sides of the second underground continuous wall component to form a second wall section; the second underground continuous wall component is of an inverted trapezoidal structure;
step S6, repeating the steps S3 to S5, and alternately arranging a plurality of the first wall segments and a plurality of the second wall segments;
in steps S2 and S5, the two sub-walls arranged up and down are connected through a vertical connecting lock, the vertical connecting lock comprises a lock body and a plug connector, the plug connector is provided with a lock hole, the lock body is provided with an insertion groove, a first driving device and a lock pin which is perpendicular to the insertion groove are arranged in the lock body, the inner side wall of the insertion groove is provided with a guide hole, the lock pin has a storage state and a locking state, when the lock pin is in the storage state, the lock pin is stored in the guide hole, and at the moment, the lock pin does not penetrate into the insertion groove; when the lock pin is in a locking state, the lock pin extends out of the guide hole and penetrates into the insertion groove; the first driving device comprises a first elastic piece, a connecting plate and a locking piece positioned at the bottom end of the insertion groove, and two ends of the first elastic piece are respectively connected to the lock body and the lock pin.
2. The method of assembling a prefabricated underground diaphragm wall as claimed in claim 1, wherein the step of hoisting the first underground diaphragm wall assembly into the first groove further comprises:
and hoisting a first sub-wall into the first groove, adjusting the verticality of the first sub-wall by adopting the positioning mechanism, hoisting a second sub-wall above the first sub-wall, and driving the bottom end of the second sub-wall to be aligned with and spliced with the top end of the first sub-wall by the positioning mechanism.
3. The method of assembling a prefabricated underground diaphragm wall as claimed in claim 1, wherein the step of lifting the second underground diaphragm wall assembly into the second groove further comprises:
and hoisting a third sub-wall into the second groove, adjusting the verticality of the third sub-wall by adopting the positioning mechanism, hoisting a fourth sub-wall to the upper part of the third sub-wall, and driving the bottom end of the fourth sub-wall to be aligned with the top end of the third sub-wall and splicing the bottom end and the top end of the third sub-wall with each other by the positioning mechanism.
4. The method of assembling a prefabricated underground diaphragm wall as claimed in claim 1, wherein the step of fixing the first underground diaphragm wall assembly to the first groove to form the first wall section further comprises:
grouting the embedded section of the first underground continuous wall assembly.
5. A method of assembling a prefabricated underground diaphragm wall according to claim 1, wherein the step of fixing the second underground diaphragm wall assembly to the first underground diaphragm wall assembly at both sides thereof to form the second wall section further comprises:
grouting between the bottom end of the second groove and the bottom end of the second underground continuous wall assembly.
6. The method of assembling a prefabricated underground diaphragm wall as claimed in claim 1, wherein the step of lifting the second underground diaphragm wall assembly into the second groove further comprises:
will the hoist of second underground continuous wall subassembly extremely during the predetermined degree of depth in the second recess, adopt the flushing pipe of second underground continuous wall subassembly both sides is right the second underground continuous wall subassembly both sides first underground continuous wall subassembly washes, will again the second underground continuous wall subassembly hoist and mount to design elevation.
7. A method of assembling a prefabricated underground diaphragm wall according to claim 1, wherein the step of fixing the second underground diaphragm wall assembly to the first underground diaphragm wall assembly at both sides thereof to form the second wall section further comprises:
and driving the locking joint of the first underground continuous wall assembly to be embedded into the locking slot of the second underground continuous wall assembly.
8. The method of assembling a prefabricated underground diaphragm wall as claimed in claim 2, wherein the step of splicing the first sub-wall and the second sub-wall to form the first underground diaphragm wall assembly further comprises:
the plug connector of the second sub-wall is embedded into the insertion groove of the first sub-wall, and the lock pin of the first sub-wall penetrates through the lock hole of the plug connector.
9. A method of assembling a prefabricated underground diaphragm wall as claimed in claim 3, wherein the step of splicing the third and fourth sub-walls to form the second underground diaphragm wall assembly further comprises:
the plug connector of the fourth sub-wall is embedded into the insertion groove of the third sub-wall, and the lock pin of the third sub-wall penetrates through the lock hole of the plug connector.
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| CN201911399992.9A CN111042100B (en) | 2019-12-30 | 2019-12-30 | Method for assembling prefabricated underground continuous wall |
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| CN105089044A (en) * | 2015-08-31 | 2015-11-25 | 中国建筑股份有限公司 | Horizontal push compaction type prefabricated underground continuous wall system and construction method thereof |
| CN105887806A (en) * | 2016-06-13 | 2016-08-24 | 上海强劲地基工程股份有限公司 | Assembled type underground diaphragm wall and construction method thereof |
| CN108442363A (en) * | 2018-04-02 | 2018-08-24 | 连云港市云达建设工程有限公司 | Underground pile connects wall construction method and its at wall equipment |
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| CN207331674U (en) * | 2017-10-11 | 2018-05-08 | 中国建筑股份有限公司 | A kind of ladder type prefabricated diaphram wall |
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| CN103132539A (en) * | 2011-12-02 | 2013-06-05 | 上海市基础工程有限公司 | Construction method of underground continuous wall connector cutting |
| CN103806440A (en) * | 2014-03-05 | 2014-05-21 | 中国建筑股份有限公司 | Assembled plug-in-connection-type self-clamped hollow fabricated underground diaphragm wall and construction method thereof |
| CN105089044A (en) * | 2015-08-31 | 2015-11-25 | 中国建筑股份有限公司 | Horizontal push compaction type prefabricated underground continuous wall system and construction method thereof |
| CN105887806A (en) * | 2016-06-13 | 2016-08-24 | 上海强劲地基工程股份有限公司 | Assembled type underground diaphragm wall and construction method thereof |
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