Lattice column triaxial automatic wireless real time hanging system and method

Abstract

The invention belongs to the civil foundation construction field, and particularly relates to a pile and column verticality adjusting system in civil 'topdown construction method' construction and a verticality adjusting method thereof. The invention discloses a latticed column three-shaft automatic wireless verticality adjusting system which comprises a protective drum arranged on the outer sideof the top part of a pile hole, a fixing connection mechanism arranged on the pile hole ground, an inclination surveying device, an adjusting device and a control device, wherein the inclination surveying device is arranged on a latticed column, the adjusting device comprises a three-shaft adjusting mechanism and a driving device which are connected with each other, the three-shaft adjusting mechanism is arranged between the protective drum and the latticed column, the control device is a central computer, the inclination surveying device and the adjusting device are connected with the control device respectively, and the control device can receive and process data from the inclination surveying device and control the adjusting device to adjust the verticality of the latticed column. The invention also discloses the verticality adjusting method of the verticality adjusting system. Due to the adoption of the method, the reliability and the verticality adjusting precision of the latticed column verticality adjusting system are effectively improved, along with high automaticity and lower material cost.

Description

technical field [0001] The invention belongs to the field of civil engineering foundation construction, and in particular relates to a vertical adjustment system and a vertical adjustment method for piles and columns in the civil engineering "upside down method" construction. Background technique [0002] The existing vertical adjustment method of lattice columns is the upper correction frame method. The method of the upper calibration frame such as figure 1 As shown, the correction lattice column steel frame foundation 16 is poured on the pile hole ground, and a correction steel frame 15 of a certain height is fixedly installed on the steel frame foundation 16, and the lattice column 6 is hoisted in the pile hole and can be connected with the correction steel frame 15. Adjust the connection, use theodolite to straighten the latitude and longitude above the exposed ground of the lattice column, and at the same time read the vertical reference value at this time with the inc...

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Problems solved by technology

Therefore, the initial measurement error is relatively large, which is also one of the reasons for the low accuracy of vertical adjustment.

[0006] 3. During the process of pouring and pounding concrete, due to the impact force of the concrete and the lifting of the pouring conduit, a certain amount of extrusion force will be generated on the lattice column. At this time, it will be very troublesome to use the inclinometer tube to monitor the inclination measurement, and it needs to be stopped. Pour concrete, unload the hopper, and monitor verticality

Therefore, it has brought considerable difficulties to the construction

That is, it is impossible to carry out real-time monitoring and vertical adjustment while constructing

In addition, when the concrete is poured and the lattice column has been inserted into the cast-in-place pile, although it can be monitored at this time, the dry lattice column has been inserted into the concrete, although it is found that the verticality does not meet the requirements, it is very difficult to adjust the verticality

[0007] 4. The vertical adjustment adopts artificial mechanical structure, which has low degree of automation, long time and low work efficiency. Moreover, it adopts two-axis vertical adjustment. The directions of the two axes will interfere with each other due to the existence of friction, so the vertical adjustment efficiency is low.

[0008] 5. Although the correction steel frame can be reused, the foundation of the steel frame is made of concrete and cannot be reused

Second, the lattice column protrudes 2m above the ground, and after cutting it off, it can basically not be reused

Third, the height of the correction steel frame is generally about 3m, and the height of the hopper is about 4.5m, so the concrete mixer truck cannot directly pour concrete into the pile hole, and the concrete truck must be used to transfer the pump, which also increases the cost of the mechanical shift ( 25 yuan / m 3 )

In summary, the waste of materials and the increase of cost have been caused

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