一种钢管桩锤击沉桩的贯入度检测装置及检测方法

Device and method for detecting penetration of hammering piling for steel pipe pile

Abstract

The invention discloses a device and a method for detecting penetration of hammering piling for a steel pipe pile. The device comprises a pile hammer installed at the top of the steel pipe pile, a blow count sensor installed on the side of the pile hammer, a light reflection film installed at the upper end of the pile hammer, laser ranging devices located right above the light reflection film and a computer. Three laser ranging devices are provided, each laser ranging device is composed of a laser range finder and a G-sensor located on the upper portion of the laser range finder, and the laser range finder is connected with a computer in a wireless mode. By means of the device and the method, detection of the penetration in the steel pipe pile piling process is achieved and is compared with the preset value of a computer control system. When the penetration is too small, hammering stop signals are transmitted automatically, pile damage, hammer damage and the like caused by the fact that the penetration is too low are reduced, steel pipe pile piling construction is guided, construction efficiency is improved, and meanwhile quality control in the steel pipe pile piling process is improved.
本发明公开了一种钢管桩锤击沉桩的贯入度检测装置,包括安装在钢管桩顶部的桩锤、安装在所述桩锤侧部的锤击数传感器、安装在所述桩锤上端的反光膜、位于该反光膜正上方的激光测距装置以及计算机;所述激光测距装置有3个,每个激光测距装置都由一个激光测距仪和该激光测距仪上部的G-sensor组成;所述激光测距仪与所述计算机无线连接。本发明实现了对钢管桩沉桩过程中贯入度的检测,通过与计算机控制系统预设值进行比较,当贯入度过小时自动发出停锤信号,减少了由于贯入度过低导致的损桩、损锤等事故,指导了钢管桩沉桩施工,提高了施工效率,同时也加强了钢管桩沉桩过程中的质量控制。

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