Temperature control anti-cracking tensile stress safety factor control design method for door-opening-shaped section lining concrete

The invention discloses a temperature control anti-cracking tensile stress safety factor control design method for door-opening-shaped section lining concrete. The method comprises the following steps: (1) collecting temperature crack control design data; (2) determining a temperature control anti-c...

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Bibliographic Details
Main Authors DUAN YAHUI, KANG XUSHENG, WANG HONGYU, FAN QIXIANG, FANG CHAOYANG, DUAN XINGPING
Format Patent
LanguageChinese
English
Published 05.07.2019
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
PHYSICS
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:The invention discloses a temperature control anti-cracking tensile stress safety factor control design method for door-opening-shaped section lining concrete. The method comprises the following steps: (1) collecting temperature crack control design data; (2) determining a temperature control anti-cracking target and an anti-cracking safety coefficient allowable value K; and (3) designing a temperature control anti-cracking measure scheme. The method further comprises the step of calculating the tensile stress 1 and 2 and the age d1 and d2 of lining concrete in the early stage and in the caseof Kmin in winter, and the minimum anti-cracking safety coefficient Kmin. In the method, calculation formula is simple, the influence of main factors such as structural size, concrete and surroundingrock performance, pouring temperature, annual change of air temperature in a tunnel, pouring season, water cooling and water temperature is reasonably reflected. The temperature stress and the minimumanti-cracking safety coeff
Bibliography:Application Number: CN201910156715