CN218667531U - Anti cage device that floats of full sleeve bored concrete pile - Google Patents

Abstract

The utility model provides an anti cage device that floats of full sleeve bored concrete pile, including pressing the cage sleeve, press the inside spacing ring that is equipped with of cage sleeve, the outer wall of spacing ring and the section of thick bamboo wall fixed connection and the spacing ring internal diameter of pressing the cage sleeve are less than the external diameter of steel reinforcement cage, press cage sleeve top fixed mounting to carry out the spring vibrohammer of vertical vibration to pressing the cage sleeve, be equipped with the pipe perforation that supplies the concrete pipe to get into on the pressure cage sleeve wall of spacing ring top. The utility model discloses a telescopic gravity of pressure cage and the vibratory pressure of vibration hammer push down the steel reinforcement cage all the time, prevent its come-up, the effectual pile-forming quality that improves the bored concrete pile.

Description

Anti cage device that floats of full sleeve bored concrete pile

Technical Field

The utility model relates to a pile foundation construction technical field, especially an anti cage device that floats of full sleeve bored concrete pile.

Background

The full casing cast-in-place pile has the advantages of small construction vibration and high pile forming mechanical degree, and is widely applied to urban infrastructure construction engineering. However, in the whole casing cast-in-place pile construction process, the problem of steel reinforcement cage floating often appears, and the cage phenomenon floats promptly, and its reason mainly divide into two aspects: 1. when concrete is poured, the concrete guide pipe is placed to the position near the pile bottom, the concrete is discharged from the concrete guide pipe and turns upwards from the pile bottom, and the steel reinforcement cage with relatively light weight is jacked upwards by the generated high-strength impact force, so that the steel reinforcement cage floats upwards; 2. when the external sleeve is pulled out in sections, the wall of the sleeve and convective plastic (unset) concrete generate larger friction force, so that the reinforcement cage is driven to float upwards.

The upward floating of the steel reinforcement cage can directly influence the pile forming quality of the full sleeve cast-in-place pile, the bearing capacity of the cast-in-place pile is reduced, and further the quality problem of the engineering is caused. In order to prevent the floating cage phenomenon in site construction, when concrete is poured, an operator controls the flow speed of the poured concrete and slowly lifts and pulls the concrete guide pipe upwards, so that the impact force of the concrete on the reinforcement cage is reduced; when the sleeve is pulled out, the friction resistance of the concrete and the sleeve in the vertical direction is reduced by rotating the sleeve back and forth; however, these measures require operators to control the construction according to experience, so that the operation difficulty is high, the efficiency is low, and the construction quality is difficult to ensure for different operators under different external conditions.

SUMMERY OF THE UTILITY MODEL

For solving the deficiencies of the prior art, the utility model provides an anti cage device that floats of full sleeve bored concrete pile easy operation, efficiency of construction is high.

The technical scheme of the utility model is that: the utility model provides an anti cage device that floats of full sleeve bored concrete pile, is including pressing the cage sleeve, press the inside spacing ring that is equipped with of cage sleeve, the outer wall of spacing ring is less than the external diameter of steel reinforcement cage with pressing telescopic section of thick bamboo wall fixed connection and spacing ring internal diameter of cage, press cage sleeve top fixed mounting to carry out the spring vibration hammer of vertical vibration to pressing the cage sleeve, be equipped with the pipe perforation that supplies concrete pipe to get into on the telescopic section of thick bamboo wall of pressure cage of spacing ring top. Rely on the dead weight of pressing the cage sleeve to exert pressure to the steel reinforcement cage, the while vibration hammer provides decurrent vibrational force to pressing the cage sleeve, when guaranteeing the cast concrete and extracting the sleeve pipe, pushes down the steel reinforcement cage all the time and prevents its come-up, and the vibrational force of certain frequency and amplitude that the while vibration hammer produced can transmit the concrete around the steel reinforcement cage for, and then improves the closely knit degree of concrete to improve the pile-forming quality of bored concrete pile.

The number of the conduit perforations is four, and the conduit perforations are distributed on the wall of the pressure cage sleeve at equal intervals along the circumferential direction. The concrete pipe penetrates through the pipe perforation and presses the cage sleeve to enter the pile bottom simultaneously, concrete pouring is carried out, the design of the four pipe perforations can stretch the suspended pipe into the pressure cage sleeve from different positions when construction is convenient, and convenience during construction is improved

The limiting ring is provided with a weight box, the weight box is fixedly installed on the corresponding limiting ring below the catheter perforation, the top of the weight box is hinged with an openable box cover, a counter weight is placed in the weight box, and the counter weight is a sand bag. Through design the weight box that has the case lid that can open on the spacing ring, constructor can put into the weight box with counter weights such as sand bag from the pipe perforation, and then improves the telescopic weight of whole pressure cage, guarantees sufficient pressure and prevents the steel reinforcement cage come-up.

The wall of the pressing cage sleeve below the limiting ring is provided with a pulley mounting opening, a pulley is mounted in the pulley mounting opening, and the pulley is rotatably connected with the side wall of the pulley mounting opening through a rotating shaft. Through pressing cage sleeve surface mounting pulley, when carrying outside sleeve pipe above, the sleeve pipe reduces the sleeve pipe and presses the frictional force between the cage sleeve pipe through pulley rolling contact with pressing cage sleeve surface to when further avoiding extracting the sleeve pipe, the cage phenomenon floats because of the friction appears.

And a hanging ring is fixedly arranged at the top of the spring vibration hammer. The guide ring is convenient for hoisting the device during construction.

The utility model has the advantages that:

this device relies on the telescopic dead weight of pressure cage to exert pressure to the steel reinforcement cage, and the vibrohammer provides decurrent vibrational force to pressing the cage sleeve simultaneously, when guaranteeing cast concrete and extracting the sleeve pipe, pushes down the steel reinforcement cage all the time and prevents its come-up to this device can reuse, and the vibrational force of the certain frequency that the vibrohammer produced simultaneously and amplitude can be given the concrete around the steel reinforcement cage, and then improves the closely knit degree of concrete, thereby improves the pile-forming quality of bored concrete pile.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the present invention in use;

FIG. 3 is a side cross-sectional view of the present invention in use;

FIG. 4 is an enlarged view of a portion of FIG. 1;

fig. 5 is a partially enlarged view of B in fig. 3.

Reference numerals: 1. pressing a cage sleeve; 11. a limiting ring; 12. perforating the conduit; 13. a pulley mounting opening; 2. a sleeve; 3. a reinforcement cage; 4. a spring vibration hammer; 41. a hoisting ring; 5. a weight box; 51. a box cover; 52. a counterweight block; 6. a pulley.

Detailed Description

In order to make the technical solution in the present invention better understood, the following description is made with reference to the accompanying drawings, and the technical solution in the present invention is clearly and completely described, and other embodiments obtained by those skilled in the art without creative work all shall belong to the protection scope of the present invention.

As shown in fig. 1 and 5, the utility model provides an anti cage device that floats of full sleeve bored concrete pile, including pressing cage sleeve 1, press 1 inside spacing rings 11 that are equipped with of cage sleeve, the outer wall of spacing rings 11 is less than steel reinforcement cage 3's external diameter with the section of thick bamboo wall fixed connection and the spacing rings 11 internal diameter that press cage sleeve 1, realizes spacing to steel reinforcement cage 3 top, press 1 top fixed mounting of cage sleeve to have the spring vibration hammer 4 that carries out vertical vibration to pressing cage sleeve 1, be equipped with the pipe perforation 12 that supplies the concrete pipe to get into on the section of thick bamboo wall of pressing cage sleeve 1 of spacing rings 11 top. The pressing cage sleeve 1 is sleeved at the top of a steel reinforcement cage 3 in the sleeve 2, pressure is applied to the steel reinforcement cage 3 by means of the dead weight of the pressing cage sleeve 1, meanwhile, the spring vibration hammer 4 provides downward vibration force for the pressing cage sleeve 1, the steel reinforcement cage 3 is guaranteed to be pressed down all the time to prevent the steel reinforcement cage 3 from floating upwards when concrete is poured and the sleeve 2 is pulled out, meanwhile, the vibration force with certain frequency and amplitude generated by the spring vibration hammer 4 can be transmitted to the concrete around the steel reinforcement cage 3, and further the compactness of the concrete is improved, and therefore the pile forming quality of a poured pile is improved; the spring vibration hammer is prior art, and its internal structure and working principle are not described herein.

The number of the conduit through holes 12 is four, and the conduit through holes are distributed on the wall of the pressure cage sleeve 1 at equal intervals along the circumferential direction. The concrete pipe penetrates through the pipe perforation 12 and presses the cage sleeve 1 to get into the pile bottom simultaneously, carries out concrete filling, and the design of four pipe perforations 12 can stretch into the pipe from different positions in pressing the cage sleeve 1 when conveniently constructing, improves the convenience when constructing

The limiting ring 11 is provided with a weight box 5, the weight box 5 is fixedly installed on the limiting ring 11 corresponding to the lower part of the conduit perforation 12, the top of the weight box 5 is hinged with an openable box cover 51, a counterweight block 52 is placed in the weight box 5, and the counterweight block 52 is a sand bag. By designing the weight box 5 with the openable box cover 51 on the limiting ring 11, a constructor can put weights such as sand bags into the weight box 5 from the guide pipe perforation 12, so that the weight of the whole cage pressing sleeve 1 is improved, and sufficient pressure is ensured to prevent the reinforcement cage 3 from floating.

The wall of the pressing cage sleeve 1 below the limiting ring 11 is provided with a pulley mounting opening 13, a pulley 6 is mounted in the pulley mounting opening 13, and the pulley 6 is rotatably connected with the side wall of the pulley mounting opening 13 through a rotating shaft. Through pressing 1 surface mounting pulley 6 of cage sleeve, when carrying outside sleeve pipe 2 above, sleeve pipe 2 reduces sleeve pipe 2 and the frictional force who presses 1 within a definite time of cage sleeve through pulley 6 rolling contact with pressing 1 surface of cage sleeve to when further avoiding extracting sleeve pipe 2, because of the superficial cage phenomenon that the friction appears.

And a hanging ring 41 is fixedly arranged at the top of the spring vibration hammer 4. The guide ring is convenient for hoisting the device during construction.

When the technical scheme is implemented, a full-casing full-slewing drilling machine and a casing 2 are used for hole forming of a cast-in-place pile, the drilling machine is used for providing pressure and torsional force, the casing 2 gradually moves downwards and cuts a soil body, and meanwhile the soil body in the casing 2 is lifted out through a grab bucket until the designed depth is reached; hoisting a reinforcement cage 3 into a sleeve 2, then penetrating a concrete conduit into a pressure cage sleeve 1 from a conduit through hole 12 of the device, hoisting the conduit and the device together by a hoisting device, sleeving the pressure cage sleeve 1 on the reinforcement cage 3 at the top, clamping the pressure cage sleeve 1 on the reinforcement cage 3 by a limiting ring 11, lowering the conduit and pouring concrete, slowly pulling out the outer sleeve 2 upwards along with the increase of the pouring quantity of the concrete, simultaneously opening a spring vibration hammer 4, applying vibration pressure to the reinforcement cage 3 by the pressure cage sleeve 1, and in the process, the reinforcement cage 3 is always positioned in the pile concrete under the combined action of the gravity of the pressure cage sleeve 1 and the vibration pressure of the spring vibration hammer 4; when the concrete is poured to the position close to the lower part of the pressure cage sleeve 1, the device is hoisted, and the concrete is continuously poured to the pile top; and after the construction is finished, all the devices are moved to the next pile position, and other full casing cast-in-place pile construction is carried out.

Claims (5)

1. The utility model provides an anti cage device that floats of full sleeve bored concrete pile which characterized in that: including pressing the cage sleeve, press the inside spacing ring that is equipped with of cage sleeve, the outer wall of spacing ring and the outer diameter that presses cage sleeve wall fixed connection and spacing ring internal diameter to be less than the steel reinforcement cage, press cage sleeve top fixed mounting to carry out vertical vibration's spring vibration hammer pressing the cage sleeve, be equipped with the pipe perforation that supplies concrete pipe to get into on the telescopic section of thick bamboo wall of pressure cage of spacing ring top.

2. The anti-floating cage device for the full-casing cast-in-place pile according to claim 1, wherein: the number of the conduit perforations is four, and the conduit perforations are distributed on the wall of the pressure cage sleeve at equal intervals along the circumferential direction.

3. The anti-floating cage device for the full-casing cast-in-place pile as claimed in claim 2, wherein: the limiting ring is provided with a weight box, the weight box is fixedly installed on the corresponding limiting ring below the catheter perforation, the top of the weight box is hinged with an openable box cover, a counter weight is placed in the weight box, and the counter weight is a sand bag.

4. The complete set bored concrete pile anti-floating cage device according to any one of claims 1-3, characterized in that: the wall of the pressing cage sleeve below the limiting ring is provided with a pulley mounting opening, a pulley is mounted in the pulley mounting opening, and the pulley is rotatably connected with the side wall of the pulley mounting opening through a rotating shaft.

5. The anti-floating cage device for the full-casing cast-in-place pile according to claim 4, wherein: and a lifting ring is fixedly arranged at the top of the spring vibration hammer.

Images