A system for simultaneously driving multiple piles into the ground to create A-frame type structures that are anchored by piles running at angles to one other and to the ground. The system comprises a guide assembly and an actuator for moving piles through the guide assembly and the actuator (such as a meshing gear, ratchet or rollers) that engages a slots or teeth in the side portion of the pile to drive the piles into the ground.

A system for simultaneously driving multiple piles into the ground to create A-frame type structures that are anchored by piles running at angles to one other and to the ground. The system comprises a guide assembly and an actuator for moving piles through the guide assembly and the actuator (such as a meshing gear, ratchet or rollers) that engages a slots or teeth in the side portion of the pile to drive the piles into the ground.

An apparatus (100) to trace pile set during pile driving comprises a panel (110) for attachment to a pile (150); a holding mechanism (120) to hold a writing instrument (160) against the panel (110) to trace the pile set for series of blows during the pile driving; a sliding mechanism (130) to provide lateral movement across the panel (110) for the holding mechanism (120) after each blow during the pile driving; and a platform (140) to allow the sliding mechainsm (130) to slide freely in horizontal direction.

An apparatus (100) to trace pile set during pile driving comprises a panel (110) for attachment to a pile (150); a holding mechanism (120) to hold a writing instrument (160) against the panel (110) to trace the pile set for series of blows during the pile driving; a sliding mechanism (130) to provide lateral movement across the panel (110) for the holding mechanism (120) after each blow during the pile driving; and a platform (140) to allow the sliding mechainsm (130) to slide freely in horizontal direction.

A cable-stayed suspension bridge structure suitable for super long spans by comprising a horizontally arranged main bridge main beam, wherein vertical main towers are arranged at ends of the main bridge main beam, and each main tower is anchored by stay cables; a main bridge vertical support and a longitudinal elastic damping stopper are arranged at positions of the main bridge main beam close to the main tower, and the main beam is kept stable longitudinally by virtue of the geometric stiffness of the cable force of the stay cable and the longitudinal elastic damping stopper.

This disclosure relates to the design of pile cap assemblies configured to rotatably couple the torque tube of a photovoltaic solar tracker to multiple support piles that elevate the torque tube above the ground. The pile cap assemblies define low friction bearings that allow the torque tube to rotate smoothly within the low friction bearings. The pile cap assemblies also include numerous mounting hole configurations that allow for adjustment of a position of the pile cap assemblies with respect to the support piles. This allows for any small variation in positioning of the support piles to be accommodated.

A removable pile cap is disclosed for use with a pile that is driven into the ground. The removable pile cap comprises a top member and at least one pile member positionable between at least a first orientation and a second orientation. The top member and the at least one pile member are connected together. When the at least one pile member is in the first orientation it is mountable over the pile's upper end. When the at least one pile member is in the second orientation it maintains frictional engagement with at least part of the pile's above-ground portion. The top member may be supported by the pile's upper end and is capable of accepting one or more structural foundation elements.

The invention relates to a method and a system for producing a foundation element in the ground by means of a construction apparatus, wherein by means of a ground working tool a hole is formed in the ground, in which the foundation element is produced, wherein by means of a control and evaluation unit at least one operating variable of the construction apparatus, which changes depending on a ground composition, is detected as a function of a working depth. According to the invention provision is made in that in the control and evaluation unit a ground profile to be expected is entered, which indicates a layer structure of the ground with ground layers of different ground composition, and in that by the control and evaluation unit the detected, at least one operating variable is set in correlation with the stated ground profile in order to establish, at which working depth a transition between ground layers of different ground composition is present.

An axial reinforcement system is disclosed that provides a shell (i.e., a form or jacket) that protects a weight-bearing member (e.g., a cement column) from a corrosive environment and which also substantially increases the structural capacity of the weight-bearing member. The shell is integrated with positioners and reinforcing elements, the combination of which offers several advantages over conventional shells. The positioner is attached directly to the shell and the positioner is, in turn, secured to a reinforcing element, which can be a reinforced steel, such as rebar, or a carbon fiber reinforced polymer material. The axial reinforcement system has been found to substantially increase the structural rigidity of the weight-bearing member, while at the same time protecting the weight-bearing member from corrosion and is also simple to install.

A method and apparatus incorporating erosion preventing mats or blankets having oyster spat are placed to prevent or reduce erosion. The method and apparatus incorporates seeding with oyster spat and/or oyster larvae onto a blanket having rough surfaces and comprising calcium. After seeding and setting natural growth of the oyster larvae can create a barrier that helps prevent erosion by breaking the kinetic energy of waves.