地下工程有害气体静压勘探方法简介

通过"杭州地铁一号线"地下有害气体勘探反复实践,本文从勘探工艺原理、流程及操作要点、材料与设备、质量安全控制等方面总结出一套可以定量获取有害气体埋藏深度、压力大小等相关信息的设备装置和技术方法。本方法具有设备简单轻便、操作方便快速、成本低廉等特点,适用于沿海地区、古河口处大中型地下工程(如深基坑、地下隧道等)有害气体专项勘察。

A BRIEF INTRODUCTION OF EXPLORATION METHOD OF HARMFUL GAS IN UNDERGROUND ENGINEERING

Depending on the repeated practice of underground harmful gas exploration at ＂Hang Zhou metro line 1 ＂, the article summarizes a set of equipments and techniques which could quantitatively obtain the buried depth, pressure and other relevant information of harmful gas from the technological principle, process, operation points, materials and equipments, control of quality security, etc. The methods could make equipments simple and light, operation convenient and fast, and cost lowe, etc. It＇Zs applicable to explore the underground harmful gas（such as deep foundation pit and underground tunnel, etc.） in large or middle underground engineering at coastal area and ancient estuary.