The present disclosure discloses an optical fiber sensing monitoring device for soil settlement and a settlement amount measurement method. The optical fiber sensing monitoring device includes a baseline rod that is internally hollowed. A plurality of settlement monitoring circular rings are sleeved outside the baseline rod, and are coaxial with the baseline rod; each settlement monitoring circular ring is provided with one trigger device that can spread an anchor by means of touching; the baseline rod is provided with through holes corresponding to the settlement monitoring circular rings; the trigger devices are provided with trigger sticks on the inner sides; and the trigger sticks extend into the baseline rod via the through holes.

The disclosure provides a bridge foundation scouring monitoring sensor and a monitoring data analysis method thereof, and belongs to the technical field of bridge engineering. The disclosure solves the problem that an existing bridge foundation scouring monitoring technology cannot realize reliable, efficient and high-precision bridge foundation scouring depth monitoring. The bridge foundation scouring monitoring sensor comprises a cover plate, a lower fixing unit and scouring depth monitoring standard units fixedly disposed between the cover plate and the lower fixing unit. Each scouring depth monitoring standard unit comprises a supporting frame and an optical fiber vibration string disposed in the supporting frame; the upper end and the lower end of each optical fiber vibration string are both fixedly connected with the corresponding supporting frame; a plurality of polyhedral mass blocks are evenly distributed on each optical fiber vibration string from top to bottom; and a fiber Bragg grating is disposed at the upper portion of each optical fiber vibration string. The bridge foundation scouring monitoring sensor of the disclosure realizes long-term real-time monitoring on the scouring depth of a bridge foundation and has higher monitoring efficiency and reliability compared with the current monitoring technology.

The disclosure provides a bridge foundation scouring monitoring sensor and a monitoring data analysis method thereof, and belongs to the technical field of bridge engineering. The disclosure solves the problem that an existing bridge foundation scouring monitoring technology cannot realize reliable, efficient and high-precision bridge foundation scouring depth monitoring. The bridge foundation scouring monitoring sensor comprises a cover plate, a lower fixing unit and scouring depth monitoring standard units fixedly disposed between the cover plate and the lower fixing unit. Each scouring depth monitoring standard unit comprises a supporting frame and an optical fiber vibration string disposed in the supporting frame; the upper end and the lower end of each optical fiber vibration string are both fixedly connected with the corresponding supporting frame; a plurality of polyhedral mass blocks are evenly distributed on each optical fiber vibration string from top to bottom; and a fiber Bragg grating is disposed at the upper portion of each optical fiber vibration string. The bridge foundation scouring monitoring sensor of the disclosure realizes long-term real-time monitoring on the scouring depth of a bridge foundation and has higher monitoring efficiency and reliability compared with the current monitoring technology.

The invention relates to a civil engineering device and a civil engineering method for using a civil engineering device. The device has a support device, a ground preparation tool, which prepares the ground at a preparation location, and at least one GPS unit, which is arranged on the support device and is designed to determine the position of the preparation location, wherein the GPS unit is arranged at a distance from the ground preparation location. The civil engineering device is characterised in that a measuring device is provided in addition to the GPS unit, the measuring device being designed to determine the distance between the GPS unit and the preparation tool.

A testing system for load test measuring a shaft resistance and a base resistance having first and second operating units with the first operating unit having a bottom loading plate, a base bearing plate and base mobilizer bars operably joined thereto; the second operating unit having a top loading plate, a shaft bearing plate and shaft mobilizer bars operably joining them together wherein the first and second operating units can move relative to one another; the system having a loading sources producing a test load between the top and bottom loading plates to move them apart wherein the shaft bearing plate that is positioned below a foundation element produces an upward compressive force test load on the foundation element to test shaft resistance and the base bearing plate that is positioned between the shaft bearing plate and the bottom surface of the foundation opening produces a downward compressive force test load on the bottom surface to test base resistance.

In a machine for driving screw anchors and other foundation components, a desired embedment depth is calculated based on a minimum required embedment depth, work point height and length of available upper leg sections. Once calculated, the machine automatically drives the screw anchor to the depth so that one of the available upper leg lengths will fit between the driven screw anchor and apex truss hardware. If uplift is detected during driving, the machine will add additional embedment depth. In-situ validation of driven screw anchors may be performed after the embedment depth is reached.

In a machine for driving screw anchors and other foundation components, a desired embedment depth is calculated based on a minimum required embedment depth, work point height and length of available upper leg sections. Once calculated, the machine automatically drives the screw anchor to the depth so that one of the available upper leg lengths will fit between the driven screw anchor and apex truss hardware. If uplift is detected during driving, the machine will add additional embedment depth. In-situ validation of driven screw anchors may be performed after the embedment depth is reached.

The invention relates to a method for producing a component, such as a structural member, free of toe pressure, including the steps of: introducing a soluble material into soil and introducing a component into the soil on the soluble material.

A new hammering system with electromagnetic power for dynamic pile testing. The basic working principle of the hammering system is as follows: when an internal coil is energized, a magnetic force is generated to attract tightly, via a magnetic conduction panel, an adaptive weight hammer disposed in contact with the surface of the panel; when the internal coil is de-energized, demagnetization occurs, and the weight hammer falls instantaneously to impact the pile top, thereby achieving the effects of a stable weight hammer and quick attraction and falling of the hammer. A clamping scale is arranged inside an adjustment section of a guide frame. A falling height of the weight hammer may be selected arbitrarily.

A new hammering system with electromagnetic power for dynamic pile testing. The basic working principle of the hammering system is as follows: when an internal coil is energized, a magnetic force is generated to attract tightly, via a magnetic conduction panel, an adaptive weight hammer disposed in contact with the surface of the panel; when the internal coil is de-energized, demagnetization occurs, and the weight hammer falls instantaneously to impact the pile top, thereby achieving the effects of a stable weight hammer and quick attraction and falling of the hammer. A clamping scale is arranged inside an adjustment section of a guide frame. A falling height of the weight hammer may be selected arbitrarily.