Settlement Characteristics of Urban Underground Comprehensive Pipe Gallery under Different Backfill Conditions

Table 1

Main technical indicators.

Name	Model	Measuring range (mm)	Resolution ratio (mm)	Outline dimension		Characteristic
				Height	Diameter
Static level	XHX-2110	100	≤0.07	180	250	Stainless steel structure and alloy materials
	XHX-2120	200	≤0.15	190	300