Study on Development of Slope Stabilization Design and Management

Western I ndonesia National Roads I mprovement Project 6 - 7 The main project works are follows: Provision of new roads on the entire project.  Earthworks and granular pavement layers  Drainage works including culverts and drainage ditches.  Minor alignment improvements.  Construction of five bridges at streamriver locations.  Two-layer asphalt concrete resurfacing. The Project activity is still focused on earthworks and granular pavement layers excavation and compaction of pile foundation class B and A, cutting the cliff, alignment improvement, concrete construction of bridges, and drainage works. The results of monitoring by TPM in general can be summarized as follows: The relationship between the Contractor and the Supervision Consultant is quite good Base Camp conditions:  Base camp is potentially waterlogged due to unavailability of the drainage channel to drain the water.  Stone crusher using a crusher jaw to jaw so that the stone material outbreak or aggregates produced was non-standard shape, which are long and flakiness.  Stockpile location was not given the floor so that the material was so dirty,  The gross aggregate materials because it does not washed,  Between the different types of aggregate material on the stockpile was not given separator separator so that the material becomes mixed,  The contractor does not have to mix Concrete Batching Plant, just use portable a mini batching plan.  Some things that happen in the field, such as, among others:  Drawing of DED does not conform to the field conditions, such as road boundary is not including area of road owning.  Field engineering lead, design changes that result in that area should be released into the wider and larger volume of work  The area of Way too narrow due to land acquisition, resulting in a very steep cliff slope, not according to the angle shear potentially catastrophic landslide.  To improve the alignment so at the several places should be held slope cutting by way of rock blasting. Acquisition of land constraints of public unwillingness to exempt their property because it is customary communal rights. The relationship with the community is pretty good, but not yet fully accepted because the scarcity of government officials including project management met with the local community. The contracting funds are not enough to complete the job, because of the changing of design , thus requiring addendum of funds and time. If there is no addendum of fund and time so the paving or asphalting will be done along the ± 3 km only. The contractor has submitted an addendum funds and the time for 299 working days. The construction site is located in the hills so that the following technical problems arise:  The cutting of high cliff with a steep slope not in accordance with the angle of soil