Mud-water balance pipe jacking: Problems to pay attention to in mud-water balance pipe jacking construction

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Time of issue:2020-07-20 09:01
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(Summary description)The mud-water balance pipe jacking is an electrical and automatic pipe jacking engineering method that uses a full cross-section to drill the sand, the sludge working pressure is used to balance the earth pressure and the surface water working pressure, and the sludge is used to transport the spoil material.

Mud-water balance pipe jacking: Problems to pay attention to in mud-water balance pipe jacking construction

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Mud-water balance pipe jacking: Problems to pay attention to in mud-water balance pipe jacking construction

(Summary description)The mud-water balance pipe jacking is an electrical and automatic pipe jacking engineering method that uses a full cross-section to drill the sand, the sludge working pressure is used to balance the earth pressure and the surface water working pressure, and the sludge is used to transport the spoil material.

Categories:news
Author:
Origin:
Time of issue:2020-07-20 09:01
Views:

The mud-water balance pipe jacking is an electrical and automatic pipe jacking engineering method that uses a full cross-section to drill the sand, the sludge working pressure is used to balance the earth pressure and the surface water working pressure, and the sludge is used to transport the spoil material.

　　 Sludge-water balance pipe jacking is relative to manual pipe jacking construction, and the construction cost increases, but when the geological condition is quicksand, the sludge balance mechanical equipment pipe jacking construction is safer than the manual pipe jacking construction.

泥水平衡顶管

The software of the mud-water balance pipe jacking system is composed of the pipe jacking equipment head, the road workbench and other auxiliary equipment. The engine has a PLC control box, and the road workbench engine obtains the posture data signal to control the posture of the engine. The silt drainage system software removes the spoil, the crane is taken out of the pipe, and the pipe is pushed in section by section by a hydraulic jack.

　　The basic concept of the sludge equalization tool pipe is sludge wall protection. In the sludge pipe jacking project, in order to maintain the excavation surface for a long time, it is necessary to introduce a certain working pressure sludge into the sludge tank. The sludge infiltrates into the sand under the effect of working pressure, creating a layer of mud on the excavation surface of the foundation pit. Problems that must be paid attention to during the whole construction process of the mud-water balance pipe jacking project:

岩石顶管掘进机

(1) When the roadheader stops working, it is necessary to prevent the sludge from flowing out of the soil layer or the side of the hole and other areas. otherwise. The excavation surface will be unbalanced, especially during the period of exiting the hole, it is necessary to avoid water seepage in the waterstop around the hole.

　　(2) In the excavation project, attention should be paid to the changes in the working pressure of the surface water, and effective countermeasures and preventive measures should be taken immediately. Only in this way can the excavation surface be kept stable.

(3) In the whole process of jacking, pay attention to whether the excavation surface is stable anytime and anywhere, check whether the concentration and density of muddy water are normal, and also pay attention to whether the total flow rate and working pressure of the mud pump are normal. . It should be avoided that the discharge volume of the sludge pump is too small to cause the deposit and blockage of the sludge pipe.

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Mud-water balance pipe jacking: Problems to pay attention to in mud-water balance pipe jacking construction

Mud-water balance pipe jacking: Problems to pay attention to in mud-water balance pipe jacking construction

Mud-water balance pipe jacking: Problems to pay attention to in mud-water balance pipe jacking construction