The foundation encyclopedia-QiangJin Foundation-第25页

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: 20 Apr

Characteristics of reverse method in foundation pit engineering

The CHARACTERISTICS OF THE REVERSE METHOD IN FOUNDATION PIT ENGINEERING ARE AS FOLLOWS: 1. The FORWARD METHOD AND THE REVERSE METHOD; 2. The FOUNDATION PIT SUPPORTING STRUCTURE AND THE UNDERGROUND MAIN STRUCT-INTEGRATION; 3. Shorten THE WHOLE CONSTRUCTION PERIOD; 4
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: 18 Apr

Construction flow of undisturbed earth taking and pressure pouring concrete pile with full protective cylinder

The construction of undisturbed soil taking concrete cast-in-place pile with full protective simplicity adopts dual-power drill with built-in spiral blades to drill down and cut the soil to form the pile diameter. At the same time, the undisturbed soil in the protective simplicity is removed, and the concrete is inserted into the steel cage after being pressed and the protective simplicity is removed to form reinforced concrete piles.
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: 16 Apr

Protection measures for foundation pit

In order TO ensure the smooth construction of foundation pit engineering, the construction scheme should be formulated according to the relevant provisions of the design specification of foundation pit support, and the corresponding safety protection measures should be taken.
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: 14 Apr

Process flow of SMW construction pile

The main construction steps of SMW construction pile (cement soil mixing pile) are as follows: 1. Construction preparation; 2. Two, stirring pile construction; Three, insert H steel; 4. Pull out the H-beam
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: 12 Apr

Construction process of mud wall protection bored pile

Bored pile refers to the use of drilling machinery drilled out of the pile hole, and in the hole poured concrete (or first in the hole hanging steel cage) and into the pile.
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: 10 Apr

Hazards of long exposure of foundation pit

Foundation pit exposed for a long time, will cause to a certain depth of foundation pit excavation, subsoil swell up phenomena will be shown after the release of the pressure, rainfall or row to pit water leads to a pit soil softening, the palisade structure of passive resistance is reduced, so that the pit displacement of retaining structures and cause around the settlement and deformation of foundation pit, endanger the safety of the surrounding buildings and structures.
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: 08 Apr

How to deal with foundation pit retaining crack

The supporting cracking of foundation pit is divided into enclosure cracking and supporting structure cracking.
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: 06 Apr

Composition and arrangement of foundation pit support plane system

Under normal circumstances, the plane support system should be composed of waist beam, horizontal support and column three parts. The horizontal support should have strong integrity and plane stiffness, so that the force transmission of each part of the support is reliable.
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: 04 Apr

Diaphragm wall construction procedure

1. Divide the unit slot segment; 2. Build a guide wall; 3, trough; 4. Clear the trough; 5. Installation of slot joint pipe; 6, the production and installation of steel cage; 7. Install the catheter; 8. Pour concrete
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: 01 Apr

Several common soil rock bolt tests

The main purpose of soil bolt test is to determine the pull-out ability of anchor solid in soil, so as to verify the rationality of soil bolt design and construction technology, or to check the quality of soil bolt. There are two kinds of soil bolt test: basic test and acceptance test. Creep test should also be carried out on the wrong rod in soft soil.
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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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