A formwork element for a molded wall panel end, comprising: a sole plate having a first lateral edge, a second lateral edge, an outer face, an inner face bearing a caisson, said caisson leaving free, on the inner face of the sole plate, a first lateral zone, defined between the first lateral edge and the caisson, and a second lateral zone, defined between the second lateral edge and the caisson; a form stripping assistance device cooperating with the sole plate. The form stripping assistance device includes at least one first sacrificial section comprising a first portion disposed on the first lateral zone of the inner face of the sole plate.

A method of constructing multiple conduits in building foundations that eliminates the process of core drilling after the foundation has been poured and set. This method creates optional openings for possible future connections. The process uses removable conduit molds installed before the foundation is poured. Once the foundation has set, conduit molds are removed to explose conduits in the foundation as needed.

The present invention discloses a water intake pipeline structure passing through a soft foundation embankment below a flood level and a construction method. The water intake pipeline structure comprises: pipelines, a gate valve well, a concrete pipe bed, a high-pressure jet grouting pile continuous wall, cement deep mixing piles, geogrids, backfilling clay, a clay bound macadam and concrete key walls. After the embankment is broken and excavated to reach a pipeline embankment-passing design elevation, the cement deep mixing piles are fully disposed in a plum blossom type, and the high-pressure jet grouting pile continuous wall is disposed under the gate valve well. A plain concrete cushion layer, the gate valve well, the concrete key walls and the concrete pipe bed are poured, the water intake pipelines are installed, and the pipelines behind the gate valve well are wrapped with concrete. The geogrids are placed during clay backfilling, and layered soil filling is performed. An embankment top is restored by using the clay bound macadam. The gate valve well is provided with a gate valve, and an operating lever is connected onto the gate valve. The present invention further discloses the construction method of the water intake pipeline structure designed to pass through the soft foundation embankment below the flood level. The present invention can eliminate differential settlement of an embankment-passing section, cut off seepage channels in contact positions of the pipelines and the embankment body, and improve the anti-skid stability of an embankment slope, and meanwhile it is novel in structure and convenient to implement.

The present invention discloses a water intake pipeline structure passing through a soft foundation embankment below a flood level and a construction method. The water intake pipeline structure comprises: pipelines, a gate valve well, a concrete pipe bed, a high-pressure jet grouting pile continuous wall, cement deep mixing piles, geogrids, backfilling clay, a clay bound macadam and concrete key walls. After the embankment is broken and excavated to reach a pipeline embankment-passing design elevation, the cement deep mixing piles are fully disposed in a plum blossom type, and the high-pressure jet grouting pile continuous wall is disposed under the gate valve well. A plain concrete cushion layer, the gate valve well, the concrete key walls and the concrete pipe bed are poured, the water intake pipelines are installed, and the pipelines behind the gate valve well are wrapped with concrete. The geogrids are placed during clay backfilling, and layered soil filling is performed. An embankment top is restored by using the clay bound macadam. The gate valve well is provided with a gate valve, and an operating lever is connected onto the gate valve. The present invention further discloses the construction method of the water intake pipeline structure designed to pass through the soft foundation embankment below the flood level. The present invention can eliminate differential settlement of an embankment-passing section, cut off seepage channels in contact positions of the pipelines and the embankment body, and improve the anti-skid stability of an embankment slope, and meanwhile it is novel in structure and convenient to implement.

A foundation engineering machine and method for producing a trench in the ground include a substantially vertical mast, a diaphragm wall apparatus displaceably supported in a longitudinal direction of the mast for producing the trench, and a bar-shaped holder, at the lower end of which the diaphragm wall apparatus is mounted and with which the diaphragm wall apparatus is linearly displaceable along the mast. An upper first clamping sledge with a first clamp for releasably clamping the bar-shaped holder and a lower second clamping sledge with a second clamp for releasably clamping the bar-shaped holder are movably supported on the mast. The first clamping sledge and the second clamping sledge are movable relative to each other, and the lower second clamping sledge has a connector for mounting an additional lifting device disposed on the ground, with which a force can be applied in the longitudinal direction onto the second sledge.

The invention relates to a sealing wall building material, which has a binding agent with cement and aggregates. It is provided according to the invention that the binding agent comprises a mixture of cement and fly ash, wherein it is free of clay material, and that it has an impermeability with a kf value of 10.sup.−7 m/s and less.

The invention relates to a sealing wall building material, which has a binding agent with cement and aggregates. It is provided according to the invention that the binding agent comprises a mixture of cement and fly ash, wherein it is free of clay material, and that it has an impermeability with a kf value of 10.sup.−7 m/s and less.

The invention relates to a formwork device (10) for an end of a panel of a molded wall, said formwork device extending along a longitudinal direction (A) and comprising at least one first formwork element (20) including: a base (22) extending along the longitudinal direction (A) and having an outer face (24); a housing (28) interacting with the base and extending along the longitudinal direction; at least one measuring device (40) making it possible to determine at least one first deviation parameter (d1) representative of the deviation of the base (22) with respect to a first vertical plane (P1); and a signal-transmitting device (50) connected to the measuring device (40) to transmit the first deviation parameter α1, d1, β to a reception station (60) located at the surface.

The invention relates to a ground-working machine and a method for producing wall panels, with the ground-working machine having at least two elongate drilling and mixing tools arranged parallel to each other, which comprise a rod-form base body, on which a first screw conveyor and at least one second screw conveyor are arranged, the second screw conveyor being axially spaced apart from the first screw conveyor. According to the invention it is provided that at least on one drilling and mixing tool at a lower end the first screw conveyor is formed with an outer diameter that is greater than an outer diameter of the second screw conveyor which is arranged above the first screw conveyor.

The invention relates to a ground-working machine and a method for producing wall panels, with the ground-working machine having at least two elongate drilling and mixing tools arranged parallel to each other, which comprise a rod-form base body, on which a first screw conveyor and at least one second screw conveyor are arranged, the second screw conveyor being axially spaced apart from the first screw conveyor. According to the invention it is provided that at least on one drilling and mixing tool at a lower end the first screw conveyor is formed with an outer diameter that is greater than an outer diameter of the second screw conveyor which is arranged above the first screw conveyor.