Reverse construction method pile-repairing construction method for pipeline influence position
A construction method and reverse method technology, applied in excavation, infrastructure engineering, construction, etc., can solve problems such as collapse, abnormal construction, instability, etc.
Active Publication Date: 2021-11-02
中铁一局集团(广州)建设工程有限公司 +1
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Problems solved by technology
During the construction process, pipeline obstructions are often encountered. At present, the traditional enclosure structure construction in the industry is bored piles and underground diaphragm walls. When pipelines that cannot be relocated are encountered during construction, the enclosure piles or underground diaphragm walls cannot be normal. As a result, the enclosure structure of the foundation pit cannot form an enclosure, and there is a risk of instability and collapse during the excavation of the foundation pit, so there is still room for improvement
Method used
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Embodiment Construction
[0035] The following is attached Figure 1-5 The present invention is described in further detail.
[0036] The embodiment of the present invention discloses a construction method for pile repairing by the reverse method at the affected position of the pipeline. refer to figure 1 , a method for filling piles with the reverse method at the affected position of the pipeline comprises the following steps:
[0037] S1: Construction preparation: Transport hammer device 7, hand-held impact drill and other equipment to the construction site.
[0038] S2: Excavation in layers: When excavating the foundation pit, reserve 3m of core soil on both sides of the retaining pile 1 near the leakage pile 10, and then divide the leakage pile 10 by mechanical and manual methods according to the geological conditions. Layer excavation, the excavation thickness of each layer of the clay layer is 2m, when excavating to the sand layer, the thickness of each layer of excavation is 0.5m.
[0039] S...
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The invention discloses a reverse construction method pile-repairing construction method for a pipeline influence position. Layered excavation is carried out on a pile leaking part of a foundation pit, and first I-shaped steel and a reinforcing mesh are built on the side wall of the foundation pit, so that the side wall of a sand layer of the foundation pit is reinforced; and steel fiber sprayed concrete is sprayed to the side wall of the foundation pit, and the I-shaped steel and the mesh sprayed concrete are combined for supporting, so that the supporting effect of a supporting structure is improved, and therefore, an enclosure is formed at the pipeline position, and the risk that the side wall of the foundation pit is unstable and collapses in a foundation pit excavation process is reduced. The technical measure is low in construction technical difficulty, is convenient in field operation, is extremely strong in operability when being used for a construction site, can effectively enclose a foundation pit enclosure structure, ensures integral safety of the foundation pit during a foundation pit excavation period and a main body structure construction period, further guarantees surrounding environment safety, and creates good social benefits.
Description
technical field [0001] The invention relates to the technical field of foundation pit enclosure structure construction, and in particular to a construction method for filling piles by the reverse method at the position affected by pipelines. Background technique [0002] With the rapid development and construction of cities, the urban construction space is becoming narrower and narrower. During the construction process, pipeline obstructions are often encountered. At present, the traditional enclosure structure construction in the industry is bored piles and underground diaphragm walls. When pipelines that cannot be relocated are encountered during construction, the enclosure piles or underground diaphragm walls cannot be normal. As a result, the enclosure structure of the foundation pit cannot form an enclosure, and there is a risk of instability and collapse during the excavation of the foundation pit, so there is still room for improvement. Contents of the invention ...
Claims
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Login to View More IPC IPC(8): E02D17/02E02D17/04
CPCE02D17/02E02D17/04
Inventor 陈凯蒋进波欧琼孙义雷亚峰
Owner 中铁一局集团(广州)建设工程有限公司