01基土钎探工程.doc

一、 施工准备
（一） 材料要求
砂：一般为中砂。
（二） 主要机具
1、 工打钎：一般钢钎，用直径φ22～25mm的钢筋制成，钎头是60°尖锥形状，钎长1.8～2.1m；穿心锤(重10kg)。
2、 机械打钎：轻便触探器。
3、 其他：麻绳或铅丝、梯子(凳子)、手推车、撬棍(拔钢钎用)和钢卷尺等。
（三） 作业条件
1、 基土已挖至基坑(槽)底设计标高，表面应平整，轴线及坑(槽)长、宽均符合设计图纸要求。
2、 根据设计图纸绘制钎探点平面布置图，确定钎探点位置及顺序编号，按照钎探图及有关规定进行钎探并记录。钎探点的布置依据设计要求，当设计无要求时，应按规范规定执行，也可参照表l-l执行。
First, construction preparation
(A) material requirements
Sand: generally in the sand.
(B) Major equipment
1, drill work dozen: General drill rod, with a diameter of φ22 ~ 25mm steel bars made of drill bits is a 60 ° cone shape, drill length 1.8 ~ 2.1m; mandrel hammer (weight 10kg).
2, mechanical play filler: Portable sounding device.
3, Others: hemp rope or wire, ladder (stool), trolleys, lever (pull drill rod used) and the steel tape and so on.
(C) Operating conditions
1, the base soil has been dug to the pit (tank), the end of the design elevation, the surface should be flat, axis and the pit (slot) length, width are consistent with design drawings.
2, according to the design drawings floor plan of Probe soldering, brazing determine the location and serial numbers of Probe, drill for exploration in accordance with the provisions of solder and related exploration and recorded. Solder the basis of Probe layout design, when design has no requirements, provisions should be standardized, but also the implementation of the light table ll.