CM4

 

 

The CM4 principle

8000 structures designed, manufactured and installed since 1983. Patented vaulted structures, cut longitudinally and transversely by precasted elements, each consisting of a vault, 2 sidewalls with or without outer soles and, optionally, an invert.

  • Articulated precasted concrete structure
  • Span from 2.5 m to 20 m
  • Backfilling height from 0.60 m to 25 m
  • Walls thickness from 180 mm to 350 mm
  • Computation of the interaction between ground and structure
With raft foundation
CM4
With raft foundation and exterior strip foundations
CM4
Without raft foundation and with exterior strip foundations
CM4

Various types of CM4

The combination of various sidewalls and vaults of different radii and dimensions allows the construction of various profiles: lowered, semi-circular or raised. Each element of the structure can be equipped or not, with soles and invert, depending on the geo-technical environment characteristics.

Advantages

 

Geometrical modularity depending on the environment

(Lowered or raised profiles)

Quick implementation
Aesthetic lines
Economic and competitive solution
Quality control

The modularity of the CM4 principle allows construction of:

Road or railway underpasses
Different levels crossings
Covered trenches
Technical galleries
Railway bridges
Hydraulic structures
Road bridges
Underground storage tanks
Vault section (m)
L x H3.505.007.5010.0012.5015.0020.0025.0030.0035.0040.0052.0064.0091.00120.00145.00Up to 310
Sidewall section (m)3.502.52 x 1.722.86 x 1.793.35 x 1.893.76 x 1.984.13 x 2.054.44 x 2.124.98 x 2.235.53 x 2.345.97 x 2.436.39 x 2.526.78 x 2.607.60 x 2.778.37 x 2.939.86 x 3.2411.20 x 3.5212.26 x 3.74Ribbed vaults
available upon request
5.002.66 x 1.973.00 x 2.043.49 x 2.143.91 x 2.234.27 x 2.304.58 x 2.375.12 x 2.485.67 x 2.596.11 x 2.686.54 x 2.776.92 x 2.857.74 x 3.028.52 x 3.1810.00 x 3.4911.34 x 3.7712.41 x 3.399
7.502.87 x 2.343.21 x 2.413.70 x 2.514.11 x 2.594.48 x 2.674.79 x 2.745.33 x 2.855.88 x 2.966.32 x 3.056.74 x 3.147.12 x 3.227.94 x 3.398.72 x 3.5510.21 x 3.8611.55 x 4.1412.61 x 4.36
10.003.04 x 2.563.37 x 3.633.87 x 2.744.28 x 2.824.65 x 2.904.96 x 2.965.50 x 3.076.05 x 3.196.49 x 3.286.91 x 3.367.29 x 3.448.11 x 3.618.89 x 3.7710.38 x 4.0811.72 x 4.3612.78 x 4.58
12.503.19 x 2.913.53 x 2.984.02 x 3.084.43 x 3.164.80 x 3.245.11 x 3.305.65 x 3.426.20 x 3.536.64 x 3.627.06 x 3.717.44 x 3.798.26 x 3.969.04 x 4.1210.53 x 4.4311.87 x 4.7012.93 x 4.92
15.003.32 x 3.133.66 x 3.204.15 x 3.304.56 x 3.394.93 x 3.475.24 x 3.535.78 x 3.646.33 x 3.766.77 x 3.857.19 x 3.937.57 x 4.018.39 x 4.189.17 x 4.3410.66 x 4.6512.00 x 4.9313.06 x 5.15
20.003.54 x 3.533.88 x 3.604.37 x 3.704.78 x 3.795.15 x 3.865.46 x 3.936.00 x 4.046.55 x 4.156.99 x 4.257.41 x 4.337.80 x 4.418.62 x 4.589.39 x 4.7410.88 x 5.0512.22 x 5.3313.28 x 5.55
25.003.77 x 3.944.11 x 4.014.60 x 4.115.01 x 4.195.38 x 4.275.69 x 4.336.23 x 4.456.78 x 4.567.22 x 4.657.64 x 4.748.02 x 4.828.84 x 4.999.62 x 5.1511.11 x 5.4612.45 x 5.7313.51 x 5.95
30.003.95 x 4.284.29 x 4.354.78 x 4.455.19 x 4.535.56 x 4.615.87 x 4.676.41 x 4.786.96 x 4.907.40 x 4.997.82 x 5.088.21 x 5.169.03 x 5.339.80 x 5.4911.29 x 5.8012.63 x 6.0713.69 x 6.29
35.004.13 x 4.574.46 x 4.644.96 x 4.745.37 x 4.835.74 x 4.906.05 x 4.976.59 x 5.087.14 x 5.197.58 x 5.288.00 x 5.378.38 x 5.459.20 x 5.629.98 x 5.7811.46 x 6.0912.81 x 6.3713.87 x 6.59
40.004.28 x 4.854.62 x 4.925.12 x 5.035.53 x 5.115.90 x 5.196.21 x 5.256.74 x 5.367.30 x 4.487.73 x 5.578.16 x 5.668.54 x 5.749.36 x 5.9010.14 x 6.0711.62 x 6.3712.97 x 6.6514.03 x 6.88
52.004.62 x 5.444.96 x 5.515.46 x 5.615.87 x 5.706.24 x 5.776.55 x 5.847.08 x 5.957.64 x 6.068.07 x 6.158.50 x 6.248.89 x 6.329.70 x 6.4910.48 x 6.6511.96 x 6.9613.31 x 7.2414.37 x 7.46
64.004.95 x 5.955.29 x 6.025.78 x 6.136.19 x 6.216.56 x 6.296.87 x 6.357.41 x 6.467.96 x 6.588.40 x 6.678.82 x 6.759.21 x 6.8410.02 x 7.0010.80 x 7.1712.28 x 7.4713.63 x 7.7514.69 x 7.97
91.005.56 x 6.875.90 x 6.946.39 x 7.046.80 x 7.137.17 x 7.207.48 x 7.278.02 x 7.388.57 x 7.499.01 x 7.589.43 x 7.679.82 x 7.7510.64 x 7.9211.41 x 8.0812.90 x 8.3914.24 x 8.6715.30 x 8.89
112.005.56 x 7.525.90 x 7.596.39 x 7.696.80 x 7.787.17 x 7.857.48 x 7.928.02 x 8.038.57 x 8.149.01 x 8.239.43 x 8.329.82 x 8.4010.64 x 8.5711.41 x 8.7312.90 x 9.0414.24 x 9.3215.30 x 9.54