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Device for detecting concrete overpouring and use method of device

A concrete and gravity detection technology, which is applied in the test of foundation structure, sheet pile wall, construction, etc., can solve the problems of uneven height of concrete piles, waste of concrete, low precision, etc., and achieve no lag, convenient processing, and stable stability sexual effect

Pending Publication Date: 2019-06-14
北京城建华夏基础建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The accuracy of this measurement method is not high, and because of its hysteresis, that is, when the estimated concrete reaches the design elevation, the measurement is started, so the final formed concrete piles are of different heights, resulting in a lot of waste of concrete
[0005] Although the new electronic monitoring instrument has high measurement accuracy, its cost is relatively high

Method used

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  • Device for detecting concrete overpouring and use method of device
  • Device for detecting concrete overpouring and use method of device
  • Device for detecting concrete overpouring and use method of device

Examples

Experimental program
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Effect test

Embodiment 1

[0042] refer to figure 1 , is a device for detecting overfilling of concrete disclosed in the present invention, including an arc-shaped screen frame 1, a connecting rod 2, a counterweight 3, a pull rope 4, a bracket 5 and a gravity detection component 6, and the arc-shaped screen frame 1 is vertically suspended to The position inside the drilled hole 7 and the bottom of the arc-shaped screen frame 1 is the concrete design overfilling position calculated according to the ground elevation. The grid size in the arc-shaped screen frame 1 can allow the concrete slurry to pass through, but it cannot allow the coarse bone of the concrete to pass through. Material passed. The connecting rods 2 are arranged in pairs, and are symmetrically welded on the upper end of the arc-shaped screen frame 1. Preferably, the connecting rods 2 are arranged in the middle of the symmetrical sides of the upper end of the arc-shaped screen frame 1. This setting position can make the arc-shaped screen fr...

Embodiment 2

[0054] refer to image 3 The difference with Embodiment 1 is that the gravity detection assembly 6 includes a tension sensor 64, a controller and an alarm unit. The model of the tension sensor 64 is LLBLS-I, and the tension sensor 64 is arranged on the stay rope 4. The output end is connected to the input end of the controller through the wire, and the output end of the controller is connected to the alarm unit through the wire. When the tension on the stay rope 4 changes suddenly, the tension sensor 64 transmits a signal to the controller, and the controller controls the alarm unit to give an alarm to remind the construction personnel to stop pouring concrete.

[0055] The controller adopts a single-chip microcomputer with at least 1 AD channel and 4 DI / DO channels. The single-chip microcomputer is connected with a keyboard, and input the preset reference value to the single-chip microcomputer through the keyboard, when the tension sensor 64 detects the tension on the stay r...

Embodiment 3

[0059] The invention discloses a device for detecting concrete overfilling and a method for using the same, comprising the following steps:

[0060] S1. Put a reinforcement cage in the borehole 7, and then hoist the perfusion conduit 8 into the borehole 7;

[0061] S2. Hanging the arc-shaped net frame: Calculate the length of the stay rope 4 that needs to be lowered according to the elevation of the concrete to be poured. Push the support 5 to select a suitable position beside the drill hole 7, take out the arc-shaped screen frame 1 from the lower rectangular frame 52, vertically hang the arc-shaped screen frame 1 into the drill hole 7, and then pass the stay rope 4 through the fixed The pulley 511 is also connected with the gravity detection assembly 6; when hanging, pay attention to observe the scale line on the stay rope 4, so as to ensure the accuracy of the hanging position of the arc-shaped screen frame 1.

[0062] S3, pouring concrete: pouring concrete, according to th...

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Abstract

The invention relates to a device for detecting concrete overpouring. The device includes an arc-shaped screen frame, connecting rods, a clump weight, a drawstring, a bracket and a gravity detection assembly, the arc-shaped screen frame is hoisted vertically to the position where the elevation is needed for pouring in a borehole, the connecting rods are arranged in pairs and symmetrically arrangedon the upper surface of the arc-shaped screen frame, one ends of the connecting rods are fixedly connected to the upper surface of the arc-shaped screen frame, the other ends of the connecting rods are fixedly connected to the side wall of the clump weight, and the upper end of the clump weight is connected with the drawstring extending out of the borehole; and the bracket is arranged on the ground on one side of the borehole, a cantilever extending over the borehole is arranged on the side, close to the borehole, of the bracket, a fixed pulley is fixedly arranged at the end of the cantilever, the gravity detection assembly is arranged on the bracket, and the drawstring extends out of the borehole vertically to pass through the fixed pulley and is connected with a connecting part of the gravity detection assembly. The device for detecting concrete overpouring has the advantages of simple structure, convenient operation and concrete overpouring prevention.

Description

technical field [0001] The invention relates to the technical field of pile foundation pouring construction, in particular to a device for detecting concrete overfilling and a method for using the same. Background technique [0002] Bored piles are widely used in bridges and high-rise construction projects because of their reliable quality, simple construction technology, and strong geological adaptability. Its construction technology is to drill holes on the ground, then put steel reinforcement cages in the holes, then extend the pouring conduit into the bottom of the hole, and pour concrete into the drilled holes from the conduit. In general, the ground elevation is higher than the designed pile top elevation, for example, 5-10m larger, so it is necessary to monitor the elevation of the concrete top surface during concrete pouring, otherwise it will cause overfilling. [0003] At present, there are two main methods for monitoring the elevation of the concrete top surface ...

Claims

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Application Information

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IPC IPC(8): E02D33/00E02D5/34E02D15/04
Inventor 何小飞李红军宋有旭张延宁胡娟赵兴涛
Owner 北京城建华夏基础建设工程有限公司