挖掘面 meaning in English
digging face
Examples
- In this paper , in order to solve the difficulties in the rain pipe construction in jianyu road of yulin city , the pipe - pushing technique for the hand - type tool pipe in the sand soil layer has been researched by experiments in which many practice problems were considered such as the movement and deformation of sand soil , the difficulties for the pipe to enter the scheduled work soil , the collapse of excavation surface , the departure of pipe center and the difficulties to correct this departure . by both the calculations for the stabilities of back - supporting soil body and excavation surface and the theoretical analysis on the reasons for the departure ' s producing , some construction techniques were introduced and adopted in this paper which include not only the change and reinforcement to both the back - supporting soil body and the scheduled work soil body but also the settings of pipe cap , lattice and correcting system on the head of the tool pipe
本文针对榆林市建榆路雨水管道中遇到的技术难题，进行手掘式工具管砂土层顶管法施工技术试验研究，在研究中考虑砂土层存在的后靠土体移位、变形，工具管难以进入出洞土体，挖掘面易坍塌、管道中心易偏差及难纠偏等问题，通过对后靠土体和挖掘面的稳定计算及偏差产生原因的理论分析，提出并采用后靠土体换填加固，出洞土体换填加固，以及在工具管头部设置管帽、格栅、纠偏系统等技术措施