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: 31 Jan

Commonly used deep foundation pit supporting technology

Occlusal pile technology is also a kind of deep foundation pit supporting technology. In this technology, the cast-in-place pile and the mixing pile are occlusioned. Firstly, a cage type double-layer agitator is used to construct solidified soil piles, and then the undisturbed soil taking and press-pouring concrete pile machine is used to cut adjacent solidified soil piles into holes, and the press-pouring concrete is inserted into the steel cage, which has the dual role of water stop and soil retaining. The technology has the advantages of fast construction speed, low cost and little impact on the surrounding environment.
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: 29 Jan

Advantages of retaining technology of deep foundation pit occluding pile

Deep foundation pit retaining pile is a kind of foundation pit retaining structure, and piles are interlocked and aligned with each other. In the construction process, it can be divided into hard bite and soft bite.
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: 27 Jan

Section steel combination support, large working space foundation pit supporting technology.

Section steel composite support is assembled on site by precast steel components. Compared with concrete support, it does not need to wait for concrete curing period, the construction period is shorter, and the demolition is convenient, and will not produce engineering waste, and the steel components are recycled again, and the cost is relatively lower.
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: 25 Jan

Application of section steel composite support in deep foundation pit

Compared with the traditional concrete support, the steel composite brace-prestressed fish-belly foundation pit steel support is connected with high-strength bolts, which can be installed and disassembled quickly, and can significantly shorten the construction period. All components and materials are recycled, making them green and generally cheaper than traditional concrete supports.
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: 23 Jan

Introduction to the retaining of deep foundation pit

Occluding pile is A new type of pile row structure, also known as AB pile, in which two different types of piles A and B occlude each other to form A vertical continuum with the functions of retaining soil and intercepting water. The purpose is to make the drained pile not only serve as a retaining member, but also play the role of water interception, so there is no need to set up another water interception curtain. Class A pile plays the role of water interception, and class B pile mainly plays the role of support and water interception. Class A pile is generally plain concrete pile, and class B pile is reinforced concrete pile.
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: 21 Jan

Precautions for installation and disassembly of assembled steel composite support

The cross construction precautions involved in the installation and demolition of assembled steel composite support are as follows: 1. Earthwork excavation: (1) Earthwork excavation shall be carried out in accordance with the principle of "supporting before digging, layered symmetrical excavation, and overdigging is strictly prohibited". No earthwork excavation shall be carried out on the soil within the steel support area before the steel support is prestressed. (2) It is strictly prohibited to pile load on the steel structure support when digging. The steel structure support is the overall stress system, and the additional load on the support will lead to the instability of the steel support structure, which will affect the safety of the project.
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: 19 Jan

Preparation for construction of prefabricated steel composite bracing

The main basic materials and facilities in the construction stage of assembled steel composite support are: steel, supporting components and accessories, stacking site; Construction machinery and tools such as digging machine, crane, air compressor, electric welding machine, etc.; On-site office and living area. According to the different construction stages, dynamically optimize the layout of the site, according to the actual situation reasonable arrangement of the process, to ensure the smooth construction.
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: 17 Jan

Prestressed steel composite bracing

Prestressed fish-belly foundation pit steel support technology is a kind of composite steel support, is based on the principle of prestress, through a large number of engineering research and practical application, aiming at the traditional concrete inner support and steel support on the foundation pit deformation control ability of the lack of a deep foundation pit support structure system.
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: 15 Jan

Construction procedure of high pressure rotary jet grouting pile

The following are the construction steps of high-pressure rotary jet grouting pile taking a project as an example: 1. Determination of pile position: According to the construction axis of the design drawing, measurement of pile position. 2, drilling into a hole: in order to prevent drilling deflection, drilling rig installation should be stable, the fuselage should be horizontal, the sky wheel, vertical axis, drilling center should be on a vertical line, the hole position deviation is not more than 50mm. Complete records should be recorded in the process of drilling. After the final hole, plug the hole with a woven bag to prevent sundries from falling into the hole.
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: 13 Jan

Introduction to section steel combination support

Prefabricated composite steel support prestressed fish-belly foundation pit steel support technology is based on the principle of prestress, through a large number of engineering research and practical application, aiming at the shortage of traditional concrete inner support and steel support, a new type of deep foundation pit inner support structure system is developed.
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Shanghai QiangJin Foundation Engineering Co., Ltd.

Tel:400-100-2850

Address:No. 289, Huixian Road, Jiading District, Shanghai

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