为慎重起见，拟采用管幕保护下的顶进法施工。

For the case of safety, its construction will adopt pipe-roof culvert box jacking method.

youdao

为慎重起见，拟采用管幕保护下的顶进法施工。

For the case of safety, its construction will adopt pipe-roof culvert box jacking method.

youdao