Diaphragm wall shutoff stopping means
Technical field
The utility model relates to technical field of building construction, particularly relates to a kind of diaphragm wall shutoff stopping means.
Background technology
Diaphragm wall is when constructing, the processing step such as grooving, clear groove, install reinforcing cage and concrete perfusion is normally utilized to form diaphragm wall unit, then adjacent diaphragm wall unit is being connected by the male joint of diaphragm wall end and female joint, the diaphragm wall formed.As intercepting water, antiseepage, the diaphragm wall of load-bearing and water-retaining structure, when constructing, require that wall body structure has higher fastness, especially at male joint and female joint joint, should ensure that there is higher intensity, guarantee that diaphragm wall unit is in stitching portion seamless link again, therefore, existing construction method is when concrete operations, normally first hang the reinforcing cage of a diaphragm wall unit, then landfill sand bag outside the i iron of this diaphragm wall unit side plane tie, sand bag is from the bottom stack of groove to the top of reinforcing cage, concrete perfusion in the space that reinforcing cage surrounds afterwards, after concrete setting, again sand bag is removed, continue the grooving of next diaphragm wall, clear groove, install reinforcing cage and concrete perfusion construction, the mode of this existing landfill sand bag, efficiency of construction is lower, has a strong impact on the construction period of diaphragm wall.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of diaphragm wall shutoff stopping means, and it can improve efficiency of construction, simplifies the construction technology of diaphragm wall unit joint.
For achieving the above object, the utility model adopts following technical scheme:
Diaphragm wall shutoff stopping means, comprise the joint and encapsulation column that are positioned at diaphragm wall unit end face, joint has two wing plates stretching out diaphragm wall unit end face, encapsulation column comprises the baffle plate that is covered in two wing plate outboard ends and to be positioned at outside baffle plate and lateral cross section is the force bearing plate of the arc of evagination, the both sides of force bearing plate are fixedly welded on the both sides of baffle plate respectively, baffle plate has two plates vertical with baffle plate away from the surface soldered of force bearing plate, and this two plate lays respectively at the inner side of two wing plates.
Be provided with the gripper shoe that both sides are welded and fixed with two plates respectively between two plates, this gripper shoe is parallel with baffle plate.
The bottom of encapsulation column is provided with one for inserting the insertion section in diaphragm wall unit groove subsoil body, the taper that this insertion section is big up and small down.
Reinforcement gusset is also welded with between baffle plate and force bearing plate.
The both sides of encapsulation column have the part protruding from joint both sides respectively.
The beneficial effects of the utility model are:
Compared to prior art, diaphragm wall shutoff stopping means of the present utility model is when carrying out construction of diaphragm wall, substitute existing sand bag, monolithic is embedded into the end of diaphragm wall unit, construction for two diaphragm wall unit joints provides convenient, overcomes the defect that efficiency of construction that stacking sand bag causes is low, long in time limit; , concretely when effectively preventing filling concrete to stream meanwhile, can reuse in construction of diaphragm wall process; In addition, after encapsulation column is extracted, the clear space reserved is large, decreases operation and the construction volume of the construction of follow-up diaphragm wall unit, has saved construction cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A direction view encapsulating column in Fig. 1;
Wherein: 10, joint; 11, web; 12, wing plate; 20, column is encapsulated; 21, baffle plate; 22, force bearing plate; 23, plate; 24, gripper shoe; 25, insertion section.
Detailed description of the invention
Below, by reference to the accompanying drawings and detailed description of the invention, the utility model is described further:
As Fig. 1, shown in 2, for diaphragm wall shutoff stopping means of the present utility model, it comprises the joint 10 and encapsulation column 20 that are positioned at diaphragm wall unit end face, this joint 10 is consistent with the I-shaped steel joint structure of existing diaphragm wall end face, it specifically has the wing plate 12 that two are stretched out diaphragm wall unit end face, and the web 11 extended along diaphragm wall cell width direction between two wing plates 12, certainly, in the utility model, as long as under guaranteeing that two wing plates 12 have the prerequisite of enough flexural strengths at diaphragm wall width, also can be that above-mentioned web 11 is not set, as long as guarantee that wing plate 12 can stretch out to coordinate with encapsulation column 20 and adjacent continuous wall connector 10 by diaphragm wall unit end face.Encapsulation column 20 is the structure of a hollow, it specifically comprises baffle plate 21 and force bearing plate 22, baffle plate 21 is covered in outside the end face of two wing plates 12, force bearing plate 22 is positioned at the outside of baffle plate 21, and force bearing plate 22 is set to the shape that cross section is outer convex, force bearing plate 22 both sides are fixedly welded on the both sides of baffle plate 21 respectively, thus, this force bearing plate 22 and baffle plate 21 surround the column structure of a hollow, baffle plate 21 is welded with two plates 23 vertical with baffle plate 21 away from the surface (namely for the surface of capping two wing plate 12) of force bearing plate 22, this two plate 23 lays respectively at the inner side of two wing plates 12.
When having carried out construction of diaphragm wall, first the reinforcing cage of diaphragm wall unit is set up, then encapsulation column 20 lifts in the groove to the joint 10 of diaphragm wall unit end face by zero hanging device, when inserting encapsulation column 20, guarantee that the bearing of trend encapsulating column 20 is consistent with short transverse, two plates 23 of encapsulation column 20 are made to lay respectively at the inner side of joint 10 liang of wing plates 12, and, that tries one's best guarantees that corresponding plate 23 is identical with the spacing of wing plate 12, the outside of the lucky capping joint 10 liang of wing plates 12 of baffle plate 21, afterwards, at the inner concrete perfusion of the reinforcing cage of diaphragm wall unit, until concrete setting and after reaching some strength, hanging device is utilized encapsulation column 20 entirety to be extracted, afterwards, carrying out the excavation of follow-up diaphragm wall unit groove section, due to when excavating follow-up groove section, need to utilize rig the soil body bottom encapsulation column 20 or other structures to be broken up, just can carry out the excavation of follow-up groove section, therefore, in order to accelerate the speed of application of rig and be beneficial to block stamp impact construction, need to reserve enough clear space in follow-up groove section joint, to facilitate lower hammer, therefore, the both sides of above-mentioned encapsulation column 20 have the part protruding from joint 10 both sides respectively, the part of this protrusion can be weld other steel work at the side of above-mentioned baffle plate 21 and force bearing plate 22, also can be as shown in fig. 1, increase the span of baffle plate 21 and force bearing plate 22 arc, the width of encapsulation column 20 is made to be greater than the width of joint 10.
Diaphragm wall shutoff stopping means of the present utility model is when carrying out construction of diaphragm wall, substitute existing sand bag, monolithic is embedded into the end of diaphragm wall unit, and the construction for two diaphragm wall unit joints provides convenient, overcomes the defect that efficiency of construction that stacking sand bag causes is low, long in time limit; , concretely when effectively preventing filling concrete to stream meanwhile, can reuse in construction of diaphragm wall process; In addition, after encapsulation column 20 is extracted, the clear space reserved is large, decreases operation and the construction volume of the construction of follow-up diaphragm wall unit, has saved construction cost.
According to the needs of shutoff and the structure of joint 10, encapsulate column 20 when considering construction simultaneously and need the end depending on joint 10, therefore, adopt and to arrange two near the side of wing plate 12 perpendicular to the plate 23 of baffle plate 21 at baffle plate 21, and consider bulk strength, between two plates 23, arrange a gripper shoe 24, the both sides of this gripper shoe 24 are welded on two plates 23 respectively, make the connected structure formation one of baffle plate 21 near joint 10 side coordinate the i iron of grafting with joint 10.
In plugging construction process, in order to improve the steadiness that encapsulation column 20 is combined with joint 10, especially avoid encapsulating situation about being separated with joint 10 in the interference by soil structures bottom column 20, the utility model arranges an insertion section 25 in the bottom of encapsulation column 20, this insertion section 25 for being inserted in the soil body at the bottom of diaphragm wall unit groove, the taper that insertion section 25 is big up and small down.
When reality uses, consider that force bearing plate 22 may bear larger pressure, therefore, can weld between baffle plate 21 and force bearing plate 22 and strengthen gusset.
To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of the utility model claim.