Why is the underground diaphragm wall grouting, is the underground diaphragm wall construction mud t

At a certain pressure, the appropriate water-cement ratio will be used.

The cement slurry is injected into the grouting pipe, and the cement slurry permeates and spreads to the surrounding soil, and undergoes a chemical reaction with the bottom of the wall and the surrounding soil at the bottom of the wall.

Consolidation, forming a dense cement soil.

So as to achieve the effect of improving the bearing capacity of the bottom of the ground connecting wall, and can effectively prevent the uneven settlement of the ground connecting wall.

Underground diaphragm walls.

It is a kind of trench digging machinery on the ground of the foundation engineering, along the perimeter axis of the deep excavation project, under the condition of mud wall protection, excavate a narrow deep groove, after the groove is cleared, the reinforcement cage is hoisted in the groove, and then the underwater concrete is poured with the conduit method to build a unit groove section, so that it is carried out section by section, and a continuous reinforced concrete is built underground.

The wall is used as a water interception, seepage-proof, load-bearing, and water-retaining structure.

1. The connection of the steel between the two walls, the end of the steel bar of the adjacent wall width should be bent and inserted into the I-beam.

2. Prevent slurry leakage during concrete pouring.

3. Bear the lateral pressure of the soil together with the reinforced concrete.

The cement slurry with an appropriate water-cement ratio is injected into the grouting pipe at a certain pressure, and the cement slurry infiltrates and spreads to the surrounding soil, and the bottom of the wall and the surrounding soil undergo chemical reaction and consolidation to form a dense cement soil, so as to achieve the effect of improving the bearing capacity of the bottom of the ground wall, and can effectively prevent the uneven settlement of the ground wall.

Underground diaphragm wall is a kind of trench digging machinery on the ground of foundation engineering, along the perimeter axis of deep excavation project, under the condition of mud wall protection, excavate a narrow deep groove, after the groove is cleared, the reinforcement cage is hoisted in the groove, and then the conduit method is used to pour underwater concrete to build a unit groove section, so that it is carried out section by section, and a continuous reinforced concrete wall is built in the underground, as a water interception, seepage, load-bearing, water retaining structure.

Summary. It is not the same, the mud pile is to add water to pump the mud, which is similar to the principle of thin mud, and the mud will be pumped immediately after the pile is formed; Concrete pouring.

It is not the same, the mud pile is to add water to pump the mud, which is similar to the principle of thin mud, and the mud will be pumped immediately after the pile is formed; Concrete pouring.

Is the mud configuration of the ground wall different from the mud configuration of the cast-in-place pile, the cast-in-place pile is to make the mud pool on site, and the mud of the ground wall?

Summary. The mud in the tank should be 0 above the groundwater level5m, not lower than the top surface of the guide wall.

The mud in the tank should be 0 above the groundwater level5m, not lower than the top surface of the guide wall.

The concrete for pouring the underground diaphragm wall should have a high slump of lead, good workability, and not easy to separate. The conduit method is generally used for concrete pouring. When poured, the concrete is pressed out of the lower mouth of the conduit in a deep groove filled with mud.

As the concrete surface bends and rises, the mud in the tank is continuously discharged to the sedimentation tank. The depth at which the conduit is buried in the concrete should not be less than 15m, not larger than 6m

The distance between two or more conduits should generally not exceed 3m.