At Green Orange Construction Professionals we use cutting edge methods and techniques to handle complex projects. We shine in those projects where the challenges require highly technical design-build solutions.
Stabilization solutions are aimed at improving, reinforcing and preventing from erosion soils, which are a heterogeneous mixture of fluids and particles. Soil mechanic engineering principles are used to analyze soil stability. Construction techniques differs when we are working with soils rather than rocks.
The techniques consist in the modification of the soil structure. We generally fill the voids with grouts, which type vary depending on site conditions and purpose. The aim is to obtain a soil with improved mechanical properties.
Retaining wall rehabilitation through specialty grouting
Many times, to improve the stability, structural elements need to be added to the soil using a variety of means and methods. This differs based on soil properties and site conditions. The structural components interact with the soil by either applying or resisting a certain load, achieving the desired stability condition.
Mechanically Stabilized Earth Wall for primary crusher
Rock Mass Stabilization
Rock masses can be seen as a “mosaic” where the tiles are the intact rock and the grout lines are the discontinuities, commonly known as cracks. The discontinuities generally govern the behavior of the rock mass. We use rock mechanics engineering principles to analyze rock masses stability and specific construction means and methods to work with rock masses.
There are cases where rock mass stabilization improvement or reinforcement methods may be inapplicable, expensive or insufficient. In those cases, our rockfall protection solutions may be the answer. These solutions are intended to protect from falling rocks by either prevention or containment techniques. Whether is a weathered rock excavation, an existing natural rim, a portal access or a mountain slope, we provide cost-effective solutions with a little aesthetic impact.
This practice consists of making a structure unaffected by water, avoiding or limiting the ingress of water under certain conditions. The applicability of the different waterproofing techniques depends on ground and environmental conditions, the amount of water, the type of structure and construction methods. The solutions we include stopping or controlling water infiltration by localized grout injections, reline compromised existing structures and installing new lining using geomembranes.
We specialize in the design-build of outdoor tactical training facilities. We focus on optimizing the structure’s footprint to leave maximum space for bays and lanes. We build outdoor ranges and shoot houses for CQB training for military, law enforcement and private range owners. Our team can handle the structural, tactical and environmental aspects of the facility. We can also offer full package solutions which includes targets and obstacles.
Sugar Land PD training facility
Frequently Asked Questions
The soil is composed by particles (minerals and sometimes organic material) and voids (pores) between these particles. These voids usually contain air or water. The general principle of grouting is to fill or reducing the voids with a different material (usually a cementitious grout or a chemical grout) therefore improving the mechanical properties of the soil and reducing its permeability.
Cohesive soils like clays have limited voids and are less prone to grouting techniques. Granular soils like sands and gravels have large volumes of voids and are more compatible with grouting techniques.
These techniques may be summarized in:
- Permeation grouting;
- Compaction grouting;
- Intrusion grouting;
- Jet grouting;
- Rock grouting.
Please note that each of these categories have several different methods of installation.
Consist in filling the soil pores with grout without disturbing the soil formation. The grout permeates through the soil particles filling the voids occupied by the air or water, ideally without moving the soil particles. The installation is conducted by low pressure injection of low viscosity grout. The grout viscosity is selected based on the permeability of the soil.
This technique is used for:
- Control ground water flow, especially during excavation;
- Increasing the stand-up time of soils when excavated;
- Increase the strength of soils
- Control settlements
This technique is versatile and therefore often used when site access or presence of utility encroachments are a challenge. On the other hand, the grout can travel though the soil only for relatively limited distances, depending on the soil permeability.
Rockfall (or rock fall) is an engineering science belonging to rock mechanic principles. As first step we identify what is the application, whether it is an existing rock rim, a slope or a rock cut, rock excavation. Then we do a rock mass characterization, identifying the rock mass properties, localizing which blocks are considered unstable, the detachment zone of these blocks and the type of initial movement those blocks may have. Once detached the blocks gain energy proportionally to their mass and velocity during the fall, but they also lose energy due to impacts along the trajectory, air friction and type of motion (for instance a rolling motion along a slope will dissipate more energy compared to a free vertical fall from a rock rim). We analyze all the above with kinematics and dynamics principles and statistical approach.
Once we are comfortable with our analyses and we determine the block trajectory, we consider one of the following solutions or the combination of several of them:
- Rockfall trenching;
- Rockfall embankments;
- Rockfall barriers;
- Debris flow barriers;
- Rockfall attenuators;
- Simple draperies;
- Pinned draperies;
- Rock bolting;
- Rock scaling.
When we design-build a range we use solutions that limits the width of rear backstop and sidewalls. Preparing properly the foundations and using reinforced soil techniques, prefabricated cages or pile walls systems, we can reach the backstop minimum required height of 20 ft by using a base of only 15 ft or less, rather than having a base of 40 ft to 50 ft that a regular dirt berm would need for such height. This increase the square feet available to accommodate the actual training ground. Our solutions also require less maintenance, for instance the typical washout that standard dirt berm experience after heavy rains.