A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Deep well underwater bottom sealing construction method
The invention discloses a deep well underwater bottom sealing construction method, and relates to the field of open caisson bottom sealing. The deep well underwater bottom sealing construction method comprises the following steps that at least one elastic bag body is fixed to the bottom of a prefabricated plate after being pressurized and expanded, and a plurality of reserved holes penetrating through the upper surface and the lower surface of the prefabricated plate are formed in the prefabricated plate. The prefabricated plate with an elastic capsule body fixed at the bottom is hung on the cement paste surface of the open caisson, and then the elastic capsule body is gradually decompressed to enable the prefabricated plate to gradually sink to a ring beam on the inner wall of the open caisson. After the pressure in the elastic bag body is removed, the elastic bag body is pulled up and recovered from the preformed hole, and the prefabricated slab is hung to the ring beam to be fixed. Concrete is poured below the prefabricated plates through the preformed holes to pour the bottom of the open caisson. According to the deep well underwater bottom sealing construction method, the precast slab is adopted to provide the closed space for the bottom sealing concrete, and the concrete can be controlled to flow to fill the closed space in order. The phenomenon of over-pouring of concrete is avoided, and the bottom sealing quality is ensured.
一种深沉井水下封底施工方法，涉及沉井封底领域。该深沉井水下封底施工方法包括以下步骤：将至少一个弹性囊体加压膨胀后固定于预制板的底部，预制板上设有多个贯穿其上下表面的预留孔；将底部固定有弹性囊体的预制板吊设于沉井的水泥浆表面，随后对弹性囊体逐渐减压使预制板逐渐下沉至沉井内壁的圈梁处；卸除弹性囊体内压力后，从预留孔拉起回收弹性囊体，将预制板吊设至圈梁上固定；通过预留孔向预制板下方灌注混凝土浇筑沉井底部。本实施例提供的深沉井水下封底施工方法采用预制板为封底混凝土提供密闭空间，能够控制混凝土的流向有序的填充密闭空间。避免了混凝土超灌现象，确保了封底质量。
Deep well underwater bottom sealing construction method
The invention discloses a deep well underwater bottom sealing construction method, and relates to the field of open caisson bottom sealing. The deep well underwater bottom sealing construction method comprises the following steps that at least one elastic bag body is fixed to the bottom of a prefabricated plate after being pressurized and expanded, and a plurality of reserved holes penetrating through the upper surface and the lower surface of the prefabricated plate are formed in the prefabricated plate. The prefabricated plate with an elastic capsule body fixed at the bottom is hung on the cement paste surface of the open caisson, and then the elastic capsule body is gradually decompressed to enable the prefabricated plate to gradually sink to a ring beam on the inner wall of the open caisson. After the pressure in the elastic bag body is removed, the elastic bag body is pulled up and recovered from the preformed hole, and the prefabricated slab is hung to the ring beam to be fixed. Concrete is poured below the prefabricated plates through the preformed holes to pour the bottom of the open caisson. According to the deep well underwater bottom sealing construction method, the precast slab is adopted to provide the closed space for the bottom sealing concrete, and the concrete can be controlled to flow to fill the closed space in order. The phenomenon of over-pouring of concrete is avoided, and the bottom sealing quality is ensured.
一种深沉井水下封底施工方法，涉及沉井封底领域。该深沉井水下封底施工方法包括以下步骤：将至少一个弹性囊体加压膨胀后固定于预制板的底部，预制板上设有多个贯穿其上下表面的预留孔；将底部固定有弹性囊体的预制板吊设于沉井的水泥浆表面，随后对弹性囊体逐渐减压使预制板逐渐下沉至沉井内壁的圈梁处；卸除弹性囊体内压力后，从预留孔拉起回收弹性囊体，将预制板吊设至圈梁上固定；通过预留孔向预制板下方灌注混凝土浇筑沉井底部。本实施例提供的深沉井水下封底施工方法采用预制板为封底混凝土提供密闭空间，能够控制混凝土的流向有序的填充密闭空间。避免了混凝土超灌现象，确保了封底质量。
Deep well underwater bottom sealing construction method
一种深沉井水下封底施工方法
2021-08-17
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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