| 摘要 |
An apparatus for monitoring grout pressure in an auger assembly during construction of an auger pressure grouted piling includes a pressure sensing element positioned within the lower end of a hollow auger for sensing the pressure exerted on the pressure sensing element by grout supplied through the auger during installation of the piling. A pressure indicator is provided for displaying the pressure sensed at the element, and a transmission line connects the element and indicator for transmitting the pressure sensed at the element to the indicator. The sensing element preferably includes a fluid-filled bulb that is compressible so that pressure exerted on the bulb is transmitted to the fluid in the bulb, and the transmission line includes a first fluid line section connected to the sensing bulb, a second fluid line section connected to the pressure indicator, and a swivel coupling positioned between the first and second fluid line sections for permitting relative rotation therebetween so that the first line section and sensing bulb can rotate together with the hollow auger during construction of the piling.
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