【Daily Discussion】Utilities - Civil Engineering - 20200907

A. When using light well points, pumping should generally be continuous, especially at the beginning stage. B. Pumping intermittently can cause the filtration network to become clogged; the water drawn out will be turbid, and nearby buildings may settle or crack due to the loss of soil particles. C. Stopping pumping midway can lead to an increase in groundwater levels, potentially causing accidents such as slope failures. D. During the pumping process, the outlet valve of the centrifugal pump should be adjusted to control the flow rate, ensuring a steady rate of water extraction. E. The normal pattern of water output is ‘first low then high, first clear then turbid’”

When using wellpoint dewatering, water should generally be pumped continuously; stopping the pumping from time to time can cause the filters to become clogged, resulting in turbid water flow. It can also lead to settlement and cracking of nearby buildings due to the loss of soil particles. Additionally, stopping pumping midway allows groundwater levels to rise, which may trigger slope failures and other accidents. During the pumping process, it is necessary to adjust the outlet valve of the centrifugal pump in order to control the water flow and ensure a steady rate of drainage. The normal pattern of water flow is from high volume to low volume, and from turbid water to clear water. The vacuum level of the vacuum pump is an indicator of whether the wellpoint system is working properly; it is essential to check this level regularly and take appropriate measures. During pumping, it is also important to check for any blocked wells. A well that is functioning properly should feel warm in winter and cool in summer when touched by hand. If there are too many blocked wells, which significantly affect the effectiveness of dewatering, those wells should be flushed repeatedly with high-pressure water, removed, and reinstalled.

A. When using light well points, pumping should generally be continuous, especially at the beginning stage. B. Pumping intermittently can cause the filtration network to become clogged; the water drawn out will be turbid, and nearby buildings may settle or crack due to the loss of soil particles. C. Stopping pumping midway can lead to an increase in groundwater levels, potentially causing accidents such as slope failures. D. During the pumping process, the outlet valve of the centrifugal pump should be adjusted to control the flow rate, ensuring a steady rate of water extraction. E. The normal pattern of water output is ‘first low then high, first clear then turbid’”

A. When using light well points, pumping should generally be continuous, especially at the beginning stage. B. Pumping intermittently can cause the filtration network to become clogged; the water drawn out will be turbid, and nearby buildings may settle or crack due to the loss of soil particles. C. Stopping pumping midway can lead to an increase in groundwater levels, potentially causing accidents such as slope failures. D. During the pumping process, the outlet valve of the centrifugal pump should be adjusted to control the flow rate, ensuring a steady rate of water extraction. E. The normal pattern of water output is ‘first low then high, first clear then turbid’”

A. When using light well points, pumping should generally be continuous, especially at the beginning stage. B. Pumping intermittently can cause the filtration network to become clogged; the water drawn out will be turbid, and nearby buildings may settle or crack due to the loss of soil particles. C. Stopping pumping midway can lead to an increase in groundwater levels, potentially causing accidents such as slope failures. D. During the pumping process, the outlet valve of the centrifugal pump should be adjusted to control the flow rate, ensuring a steady rate of water extraction. E. The normal pattern of water output is ‘first low then high, first clear then turbid’”

A. When using light well points, pumping should generally be continuous, especially at the beginning stage. B. Pumping intermittently can cause the filtration network to become clogged; the water drawn out will be turbid, and nearby buildings may settle or crack due to the loss of soil particles. C. Stopping pumping midway can lead to an increase in groundwater levels, potentially causing accidents such as slope failures. D. During the pumping process, the outlet valve of the centrifugal pump should be adjusted to control the flow rate, ensuring a steady rate of water extraction. E. The normal pattern of water output is ‘first low then high, first clear then turbid’”

When using wellpoint dewatering, water should generally be pumped continuously; stopping the pumping from time to time can cause the filters to become clogged, resulting in turbid water flow. It can also lead to settlement and cracking of nearby buildings due to the loss of soil particles. Additionally, stopping pumping midway allows groundwater levels to rise, which may trigger slope failures and other accidents. During the pumping process, it is necessary to adjust the outlet valve of the centrifugal pump in order to control the water flow and ensure a steady rate of drainage. The normal pattern of water flow is from high volume to low volume, and from turbid water to clear water. The vacuum level of the vacuum pump is an indicator of whether the wellpoint system is working properly; it is essential to check this level regularly and take appropriate measures. During pumping, it is also important to check for any blocked wells. A well that is functioning properly should feel warm in winter and cool in summer when touched by hand. If there are too many blocked wells, which significantly affect the effectiveness of dewatering, those wells should be flushed repeatedly with high-pressure water, removed, and reinstalled.

A. When using light well points, pumping should generally be continuous, especially at the beginning stage. B. Pumping intermittently can cause the filtration network to become clogged; the water drawn out will be turbid, and nearby buildings may settle or crack due to the loss of soil particles. C. Stopping pumping midway can lead to an increase in groundwater levels, potentially causing accidents such as slope failures. D. During the pumping process, the outlet valve of the centrifugal pump should be adjusted to control the flow rate, ensuring a steady rate of water extraction. E. The normal pattern of water output is ‘first low then high, first clear then turbid’”

A. When using light well points, pumping should generally be continuous, especially at the beginning stage. B. Pumping intermittently can cause the filtration network to become clogged; the water drawn out will be turbid, and nearby buildings may settle or crack due to the loss of soil particles. C. Stopping pumping midway can lead to an increase in groundwater levels, potentially causing accidents such as slope failures. D. During the pumping process, the outlet valve of the centrifugal pump should be adjusted to control the flow rate, ensuring a steady rate of water extraction. E. The normal pattern of water output is ‘first low then high, first clear then turbid’”