Device for measuring concrete grouting height of tube-sinking cast-in-situ pile in real time and using method of device
A technology of immersed tube grouting piles and real-time measurement, which is applied in the direction of foundation structure testing, construction, foundation structure engineering, etc., can solve the problems of difficult measurement of concrete pouring height, and achieve simple and feasible technology, strong practicability and high precision Effect
Active Publication Date: 2015-11-04
PLA UNIV OF SCI & TECH
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Problems solved by technology
[0003] The purpose of the present invention is to provide a real-time measuring device for the concrete pouring height of the immersed tube pouring pile and its use method, so as to overcome the problem that the concrete pouring height of the sinking tube pouring pile is difficult to measure
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Embodiment 1
[0039] A real-time measuring device for concrete pouring height of immersed tube pouring piles, including a take-up box 1, a scale 2, a weight 3, and 3 fixed pulleys 4, 2 fixed pulleys 4, and one fixed pulley 4 fixed on the pile machine frame 5, the other is fixed on the pile frame to change the direction of the scale 2, one end of the scale 2 passes through two fixed pulleys 4 to connect with the weight 3, and the other end is connected to the take-up box 1; the take-up box 1 is used to retract the scale 2, and the heavy hammer 3 is located directly above the pile formwork of the immersed tube grouting pile, so as to ensure that the heavy hammer 3 falls into the pile mold of the immersed tube grouting pile after falling.
[0040] The scale 2 adopts a tape measure.
[0041] The heavy hammer 3 is made of poured concrete, which sinks freely in the water and floats in the concrete, which makes the measurement result more accurate.
[0042] When measuring, both ends of the scale 2 ...
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The invention discloses a device for measuring the concrete grouting height of a tube-sinking cast-in-situ pile in real time and a using method of the device. The device comprises a take-up box, a dividing ruler, a hammer and a fixed pulley. The dividing ruler is wound around the fixed pulley, one end of the dividing ruler is connected with the hammer, and the other end of the dividing ruler is connected with the take-up box. The fixed pulley is fixed to the top of a machine frame. When the device is used, the fixed pulley and the dividing ruler are mounted, the free end of the dividing ruler is connected to the hammer, the initial reading I<0> is recorded at the position of the fixed pulley, the reading I<1> is recorded when the hammer is released to the ground elevation, and the height of the machine frame is I<1>-I<0>; a tube is sunk to the design elevation, the reading I<2> is recorded when the hammer is released to the bottom of the tube, and the tube sinking depth is I<2>-I<1>; the hammer is restored, concrete is grouted, the hammer is released till free falling of the hammer is stopped, the recording I<3> is recorded at the moment, and the concrete grouting height is I<2>-I<3>. According to the device, the tube sinking depth can be tested, the tube sinking perpendicularity can be calibrated, and the grouting height can be measured in real time; operation is convenient, the technique is simple and feasible, and practicability is high.
Description
technical field [0001] The invention belongs to the construction field of cast-in-situ piles with immersed tubes in civil engineering, and in particular relates to a real-time measuring device for the concrete pouring height of cast-in-place piles with immersed tubes and a method for using the same. Background technique [0002] Immersed tube cast-in-place pile is an important method of soft foundation treatment. Through static pressure, hammering or vibration immersed tube device, the pile formwork with valve pile can or concrete prefabricated pile tip is sunk into the design depth, and then put into the steel skeleton , pouring concrete, vibrating pipe pulling, curing and forming, and then forming concrete pouring piles with different pile bodies and cross-sectional shapes required by the design. In the process of concrete pouring, pouring height is one of the important parameters to evaluate the quality of concrete pouring. The concrete pouring height of bored piles is u...
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Inventor 张冬冬吕亚茹丁选明李峰马林建邓小勇段应昌
Owner PLA UNIV OF SCI & TECH