Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sinking method of ultra-large open caisson
The invention discloses a sinking method of an ultra-large open caisson. The sinking method comprises the following steps: S1, a soil body at the bottom of the ultra-large open caisson is divided intoblind areas and non-blind areas, and an allowable soil sampling depth Hc<'> of soil bodies of the non-blind areas is calculated; S2, a critical width B<'> of soil bodies in the blind areas is calculated according to the allowable soil sampling depth Hc<'> of the non-blind areas, and the critical width B<'> is the critical width of the ultra-large open caisson when the soil bodies of the blind areas are damaged; S3, soil is continuously taken down in the non-blind areas until the depth of formed well holes reaches the allowable soil sampling depth Hc<">; S4, soil is taken from the adjacent blind areas in the well holes until the width of the soil bodies in the blind areas is continuously reduced to the critical width B<'>, and at the moment, the ultra-large open caisson relies on self-weight soil cutting and sinking; and S5, after the ultra-large open caisson stops cutting soil downwards, the step S3-step S4 is repeated until the ultra-large open caisson sinks to a designed elevation.The method can realize smooth and safe sinking of the ultra-large open caisson.
本申请公开一种超大型沉井的下沉方法，包括：步骤S1：将超大型沉井底部的土体划分为盲区和非盲区，并计算非盲区的土体的容许取土深度Hc＇；步骤S2：根据非盲区的容许取土深度Hc＇，计算盲区内的土体的临界宽度B＇，临界宽度B＇为超大型沉井在下沉时盲区的土体发生破坏时的临界宽度；步骤S3：在非盲区向下持续取土直至形成的井孔的深度达到容许取土深度Hc＇；步骤S4：在井孔内向相邻的盲区对称侧向取土直至盲区内的土体的宽度不断减小至临界宽度B＇，此时，超大型沉井将依靠自重切土下沉；步骤S5：在超大型沉井停止向下切土下沉后，重复步骤S3～步骤S4，直至超大型沉井下沉至设计高程。本申请能够实现超大型沉井的平稳安全下沉。
Sinking method of ultra-large open caisson
The invention discloses a sinking method of an ultra-large open caisson. The sinking method comprises the following steps: S1, a soil body at the bottom of the ultra-large open caisson is divided intoblind areas and non-blind areas, and an allowable soil sampling depth Hc<'> of soil bodies of the non-blind areas is calculated; S2, a critical width B<'> of soil bodies in the blind areas is calculated according to the allowable soil sampling depth Hc<'> of the non-blind areas, and the critical width B<'> is the critical width of the ultra-large open caisson when the soil bodies of the blind areas are damaged; S3, soil is continuously taken down in the non-blind areas until the depth of formed well holes reaches the allowable soil sampling depth Hc<">; S4, soil is taken from the adjacent blind areas in the well holes until the width of the soil bodies in the blind areas is continuously reduced to the critical width B<'>, and at the moment, the ultra-large open caisson relies on self-weight soil cutting and sinking; and S5, after the ultra-large open caisson stops cutting soil downwards, the step S3-step S4 is repeated until the ultra-large open caisson sinks to a designed elevation.The method can realize smooth and safe sinking of the ultra-large open caisson.
本申请公开一种超大型沉井的下沉方法，包括：步骤S1：将超大型沉井底部的土体划分为盲区和非盲区，并计算非盲区的土体的容许取土深度Hc＇；步骤S2：根据非盲区的容许取土深度Hc＇，计算盲区内的土体的临界宽度B＇，临界宽度B＇为超大型沉井在下沉时盲区的土体发生破坏时的临界宽度；步骤S3：在非盲区向下持续取土直至形成的井孔的深度达到容许取土深度Hc＇；步骤S4：在井孔内向相邻的盲区对称侧向取土直至盲区内的土体的宽度不断减小至临界宽度B＇，此时，超大型沉井将依靠自重切土下沉；步骤S5：在超大型沉井停止向下切土下沉后，重复步骤S3～步骤S4，直至超大型沉井下沉至设计高程。本申请能够实现超大型沉井的平稳安全下沉。
Sinking method of ultra-large open caisson
一种超大型沉井的下沉方法
QIN SHUNQUAN (Autor:in) / TAN GUOHONG (Autor:in) / FU ZHANGONG (Autor:in) / ZHUANG YONG (Autor:in) / ZHENG QINGGANG (Autor:in) / DU XUN (Autor:in) / TANG CHAO (Autor:in)
07.08.2020
Patent
Elektronische Ressource
Chinesisch
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