The foundation encyclopedia-QiangJin Foundation-第23页

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: 03 Jun

Technical advantages of prestressed fish-belly foundation pit steel structure

Prestressed steel belly type foundation pit supporting technology, which is based on the principle of prestressed, in view of the traditional concrete support, steel support of foundation pit deformation control ability, through a large number of engineering research and application practice, developed a kind of deep foundation pit support structure within the system, it is composed of vertical retaining wall, prestressed the stomach beam, pre coping binder, purlin, gusset (to stay), bracket, three The plane prestressed support system and three-dimensional support structure system made of high strength bolts are composed of angular connectors and vertical columns, which are safe and reliable.
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: 01 Jun

The importance and function of deep foundation pit supporting

Deep foundation pit support is a kind of foundation pit support, the main function of foundation pit support is to support soil, in addition, steel sheet pile, concrete plate pile and cement mixing pile also have a certain role in retaining water.
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: 31 May

How to do foundation pit support? 8 kinds of common foundation pit supporting methods.

Foundation pit support is to adopt retaining, reinforcing and protecting measures for the side wall of foundation pit and surrounding environment to ensure the safety of the surrounding environment of foundation pit and the stability of soil, at the same time to ensure the construction of the underground structure of the building, to meet the requirements of basement construction with enough space. There are many forms of foundation pit support, each of which has its own advantages and disadvantages.
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: 31 May

The advantages of cement soil mixing pile

The advantages of cement-soil mixing pile are as follows: first, the suitable soil type is wide, the reinforcement depth is large; 2. Wide scope of application; 3. Short construction period and low cost; Four, high degree of construction mechanization; Five, the force and deformation of cement mixing pile mainly occur in the upper part of the pile body, and the force and deformation of the lower part of the pile body are small
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: 30 May

Introduction to SMW construction pile, what is SMW construction pile?

SMW is the abbreviation of the soil mixing wall, the construction method is also known as the steel cement soil mixing (pile) wall, is using multi-axis mixing pile machine in the project site one by one construction. The cement slurry or soil curing agent is spouted from the drill bit and mixed repeatedly with the foundation soil to form a continuous and complete underground wall with certain strength and stiffness without joints. Suitable for building foundation pit retaining wall, water curtain or soft foundation soil reinforcement.
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: 24 May

Introduction of six-axis stirring pile

Six axial mixing pile is our in uniaxial and biaxial and triaxial existing mixing pile on the basis of the development of a new type of cement-soil pile, inherited the principles of the biaxial mixing pile and displacement of soil, water cement ratio is small, low cost, less advantages, overcomes the biaxial and triaxial mixing pile work efficiency is low, the low degree of automation, the labor intensity of workers, poor mechanical safety defects.
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: 22 May

Introduction of rotary jet stirring stiffening pile

Rotary jet mixing stiffening pile is a kind of anchorage structure that forms vertical or inclined variable diameter soil-cement pile body in soft soil layer through special drilling machine and high-pressure rotary jet mixing technology. Anchor bars and anchorage parts are placed in cement pile body and pre-tension is applied to control foundation pit stability.
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: 20 May

Introduction of steel bracing for prestressed fish-belly foundation pit

Prestressed fish-belly foundation pit steel support system is an innovative support form in soft soil deep foundation pit. By applying prestress to the steel strand on the fish-belly beam string, a large span enclosing purlin structure is formed, which is connected and combined with Angle brace and counter brace to form a plane prestressed support system.
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: 18 May

New technique of foundation pit support: prestressed fish-belly steel support

The prestressed fish-belly foundation pit steel support system is based on the principle of prestress, aiming at the deficiency of traditional concrete inner support and steel support, the fish-belly beam (high strength and low slack steel strand as the winding member, H Section steel as a stress beam, and the length of different; H A new type of deep foundation pit internal support structure system is developed through a large number of engineering research and practical application.
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: 16 May

Introduction of construction method of long screw post - pressure irrigation occluding pile

Pressure filling pile construction principle of occlusion after long spiral: using long spiral drilling to design depth, in the drilling of using concrete pump through the drill pipe center channel at the same time, with certain pressure to press the concrete to pile hole, the concrete to set the elevation, and then by means of reinforcing cage self-respect or special vibration equipment insert reinforcing cage in the concrete to the design elevation, the formation of reinforced concrete piles.
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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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